KR102696035B1 - Display device - Google Patents

Abstract

A display device is provided. The display device includes a base portion including a pixel area including a transparent area and a light-shielding area, a protrusion portion positioned on the light-shielding area of the base portion and including a first sub-color filter and a second sub-color filter overlapping the first sub-color filter, a light-shielding member positioned on the protrusion portion and overlapping the light-shielding area of the base portion, and a spacer positioned on the light-shielding member and made of the same material as the light-shielding member and overlapping the protrusion, wherein the first sub-color filter includes a first color pigment, and the second sub-color filter includes a second color pigment different from the first color pigment, a first width of the first sub-color filter in a first direction is different from a second width of the second sub-color filter in the first direction, a third width of the first sub-color filter in the second direction is different from a fourth width of the second sub-color filter in the second direction, and the second direction may be a direction intersecting the first direction.

Description

DISPLAY DEVICE

The present invention relates to a display device.

Among display devices, a liquid crystal display (LCD) is one of the most widely used flat panel displays, and has field-generating electrodes such as pixel electrodes and common electrodes, and includes two substrates and a liquid crystal layer filled in the gap between the two substrates. In such a liquid crystal display, an electric field is formed in the liquid crystal layer by applying voltage to the two field-generating electrodes, thereby determining the orientation of liquid crystal molecules and controlling the polarization of incident light to display an image.

In the case of the liquid crystal display device described above, a light-blocking member is formed to prevent light leakage, and a spacer is formed between the two substrates to maintain a uniform gap between the liquid crystal layers between the two substrates.

In the case of forming the above-described light-blocking member, a mask is required. In addition, a separate mask is required to form the above-described spacer. Therefore, there is a problem that the manufacturing cost of the liquid crystal display device increases as the number of masks increases during the manufacturing process.

The problem to be solved by the present invention is to provide a display device capable of simultaneously forming a light-blocking member and a spacer having different steps.

The tasks of the present invention are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.

According to an exemplary embodiment of the present invention for achieving the above object, a display device includes a base portion including a pixel area including a transparent area and a light-shielding area, a protrusion portion positioned on the light-shielding area of the base portion and including a first sub-color filter and a second sub-color filter overlapping the first sub-color filter, a light-shielding member positioned on the protrusion portion and overlapping the light-shielding area of the base portion, and a spacer positioned on the light-shielding member and made of the same material as the light-shielding member and overlapping the protrusion portion, wherein the first sub-color filter includes a first color pigment, and the second sub-color filter includes a second color pigment different from the first color pigment, and a first width of the first sub-color filter in a first direction is different from a second width of the second sub-color filter in the first direction, a third width of the first sub-color filter in the second direction is different from a fourth width of the second sub-color filter in the second direction, and the second direction is different from the first direction. It could be an intersecting direction.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the first width may be smaller than the second width, and the third width may be larger than the fourth width.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, a maximum width of an overlapping area where the first sub-color filter and the second sub-color filter overlap in the first direction may be substantially equal to the first width, and a maximum width of the overlapping area in the second direction may be substantially equal to the fourth width.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the first width may be larger than the second width, and the third width may be larger than the fourth width.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, a maximum width of an overlapping area where the first sub-color filter and the second sub-color filter overlap in the first direction may be substantially equal to the second width, and a maximum width of the overlapping area in the second direction may be substantially equal to the fourth width.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the display device further includes a color filter positioned on a transmission area of the base portion, and the color filter may include the first color pigment.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the first sub-color filter can be connected to the color filter.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the second sub-color filter can be spaced apart from the color filter.

According to an exemplary embodiment of the present invention for achieving the above object, a display device further includes a color filter positioned on a transmission area of the base portion, and the first sub-color filter and the second sub-color filter can be spaced apart from the color filter.

According to an exemplary embodiment of the present invention for achieving the above object, a display device further includes a switching element positioned on a light-shielding area of the base portion and overlapping the protrusion and the spacer, and a passivation layer positioned on the switching element, wherein the light-shielding member is positioned on the passivation layer, and the protrusion can be positioned between the passivation layer and the light-shielding member.

According to an exemplary embodiment of the present invention for achieving the above object, a display device further includes a color filter positioned on the passivation layer and overlapping a transmission area of the base portion, and a pixel electrode positioned on the color filter and connected to the switching element through a contact hole formed in the passivation layer, wherein the protrusion may not overlap the contact hole.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the color filter may not overlap with the contact hole.

In a display device according to an exemplary embodiment of the present invention for achieving the above task, the light-shielding member can partially be in direct contact with the passivation layer.

According to another exemplary embodiment of the present invention for achieving the above object, a display device includes a base portion including a first pixel area including a first transparent area and a first shading area and a second pixel area including a second transparent area and a second shading area, a protrusion portion positioned on the first shading area of the base portion and including a first sub-color filter and a second sub-color filter overlapping the first sub-color filter, a third sub-color filter positioned on the second shading area of the base portion, a first shading member positioned on the protrusion portion and overlapping the first shading area of the base portion, and a second shading member positioned on the third sub-color filter and overlapping the second shading area of the base portion, a spacer positioned on the first shading member and made of the same material as the first shading member and overlapping the protrusion, and an auxiliary spacer positioned on the second shading member and made of the same material as the second shading member and overlapping the third sub-color filter, The first sub-color filter includes a first color pigment, the second sub-color filter includes a second color pigment different from the first color pigment, a first width of the first sub-color filter in a first direction is different from a second width of the second sub-color filter in the first direction, a third width of the first sub-color filter in the second direction is different from a fourth width of the second sub-color filter in the second direction, and the second direction may be a direction intersecting the first direction.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the spacer may be formed integrally with the first light-shielding member, and the auxiliary spacer may be formed integrally with the second light-shielding member.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the first spacer may be formed integrally with the first light-shielding member, and the second spacer may be formed integrally with the second light-shielding member.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the first light-shielding member and the second light-shielding member may be made of the same material.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the first light-shielding member and the second light-shielding member may be formed integrally.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the height of the spacer measured with respect to one side of the first base portion may be higher than the height of the auxiliary spacer measured with respect to one side of the first base portion.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the height of the protrusion measured with respect to one surface of the first base portion may be higher than the height of the third sub-color filter measured with respect to one surface of the first base portion.

According to another exemplary embodiment of the present invention for achieving the above object, a display device further includes a first color filter positioned on a first transmission area of the base portion and including the first color pigment, and a second color filter positioned on a second transmission area of the base portion and including a color pigment different from the first color pigment, wherein the third sub-color filter may include a color pigment identical to either the first color pigment or the second color pigment.

According to another exemplary embodiment of the present invention for achieving the above object, a display device further includes a first color filter positioned on a first transmission area of the base portion and including the first color pigment, and a second color filter positioned on a second transmission area of the base portion and including a color pigment different from the first color pigment, and the third sub-color filter may include a third color pigment different from the first color pigment and the second color pigment.

According to another exemplary embodiment of the present invention for achieving the above object, a display device further includes a first color filter positioned on a first transmission area of the base portion and including a third color pigment different from the first color pigment and the second color pigment, and a second color filter positioned on a second transmission area of the base portion and including a color pigment different from the third color pigment, wherein the third sub-color filter may include a color pigment identical to either one of the first color pigment and the second color pigment.

According to another exemplary embodiment of the present invention for achieving the above object, a display device further includes a first color filter positioned on a first transmission area of the base portion and including a third color pigment different from the first color pigment and the second color pigment, and a second color filter positioned on a second transmission area of the base portion and including a color pigment different from the third color pigment, wherein the third sub-color filter may include the third color pigment.

According to another exemplary embodiment of the present invention for achieving the above object, a display device further includes a first switching element positioned on a first shading area of the base portion and overlapping the protrusion and the spacer, a second switching element positioned on a second shading area of the base portion and overlapping the third sub-color filter and the auxiliary spacer, and a passivation layer positioned on the first switching element and the second switching element, wherein the protrusion may be positioned between the passivation layer and the first shading member, and the third sub-color filter may be positioned between the passivation layer and the second shading member.

In a display device according to another exemplary embodiment of the present invention for achieving the above task, the first light-shielding member may be partially in direct contact with the passivation layer, and the second light-shielding member may be partially in direct contact with the passivation layer.

Specific details of other embodiments are included in the detailed description and drawings.

According to embodiments of the present invention, a display device having improved transmittance and aperture ratio and a simplified manufacturing process can be provided.

The effects according to the present invention are not limited to those exemplified above, and more diverse effects are included in this specification.

FIG. 1 is an exemplary plan view of one pixel of a display device according to an exemplary embodiment of the present invention.
FIG. 2 is a plan view schematically illustrating the arrangement relationship between color filters, protrusions, gate lines, and data lines in the display device illustrated in FIG. 1.
Figure 3 is a plan view of the protrusion illustrated in Figure 2.
Figures 4 and 5 are plan views illustrating variations of the protrusions illustrated in Figure 3.
Figures 6 to 14 are plan views illustrating other variations of the protrusion illustrated in Figure 3.
Fig. 15 is a cross-sectional view of the display device illustrated in Fig. 1 taken along line A-A' of Fig. 1.
Fig. 16 is a cross-sectional view of the display device illustrated in Fig. 1 taken along line B-B' of Fig. 1.
FIG. 17 is a cross-sectional view taken along line A-A' of FIG. 1 of a display device according to another embodiment of the present invention.
FIG. 18 is a cross-sectional view taken along line B-B' of FIG. 1 of a display device according to another embodiment of the present invention.
FIG. 19 is a plan view schematically illustrating the arrangement relationship between color filters, protrusions, gate lines, and data lines in a display device according to another embodiment of the present invention.
FIG. 20 is a cross-sectional view taken along line A1-A1' of FIG. 19 of a display device according to another embodiment of the present invention.
FIG. 21 is a cross-sectional view taken along line B1-B1' of FIG. 19 of a display device according to another embodiment of the present invention.
FIG. 22 is a cross-sectional view taken along line A1-A1' of FIG. 19 of a display device according to another embodiment of the present invention.
FIG. 23 is a cross-sectional view taken along line B1-B1' of FIG. 19 of a display device according to another embodiment of the present invention.
FIG. 24 is a plan view schematically illustrating the arrangement relationship between color filters, protrusions, gate lines, and data lines in a display device according to another embodiment of the present invention.
Figure 25 is a plan view of the protrusion shown in Figure 24.
Figures 26 to 40 are plan views illustrating variations of the protrusions illustrated in Figure 25.
FIG. 41 is a cross-sectional view taken along line A2-A2' of FIG. 24 of a display device according to another embodiment of the present invention.
FIG. 42 is a cross-sectional view taken along line B2-B2' of FIG. 24 of a display device according to another embodiment of the present invention.
FIG. 43 is a cross-sectional view taken along line A2-A2' of FIG. 24 of a display device according to another embodiment of the present invention.
FIG. 44 is a cross-sectional view taken along line B2-B2' of FIG. 24 of a display device according to another embodiment of the present invention.
FIG. 45 is a plan view schematically illustrating the arrangement relationship between color filters, protrusions, gate lines, and data lines in a display device according to another embodiment of the present invention.
FIG. 46 is a cross-sectional view taken along line A3-A3' of FIG. 45 of a display device according to another embodiment of the present invention.
FIG. 47 is a cross-sectional view taken along line B3-B3' of FIG. 45 of a display device according to another embodiment of the present invention.
FIG. 48 is a cross-sectional view taken along line A3-A3' of FIG. 45 of a display device according to another embodiment of the present invention.
FIG. 49 is a cross-sectional view taken along line B3-B3' of FIG. 45 of a display device according to another embodiment of the present invention.
FIG. 50 is a plan view schematically illustrating three pixels of a display device according to another embodiment of the present invention.
Figure 51 is a plan view schematically illustrating the arrangement relationship between color filters, protrusions, gate lines, and data lines in the display device illustrated in Figure 50.
Figure 52 is a cross-sectional view of the display device illustrated in Figure 51 taken along line A4-A4' of Figure 51.
Figure 53 is a cross-sectional view of the display device illustrated in Figure 51 taken along line B4-B4' of Figure 51.
Figure 54 is a cross-sectional view of the display device illustrated in Figure 51 taken along line B5-B5' of Figure 51.
Figure 55 is a cross-sectional view of the display device illustrated in Figure 51 taken along line B6-B6' of Figure 51.
FIG. 56 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.
FIG. 57 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.
FIG. 58 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.

The advantages and features of the present invention, and the method for achieving them, will become clear with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and these embodiments are provided only to make the disclosure of the present invention complete and to fully inform a person having ordinary skill in the art to which the present invention belongs of the scope of the invention, and the present invention is defined only by the scope of the claims.

When elements or layers are referred to as being "on" or "on" another element or layer, this includes not only directly on the other element or layer, but also cases where there are other layers or elements intervening. In contrast, when elements or layers are referred to as being "directly on" or "directly above" an element, this means that there are no other intervening elements or layers.

The spatially relative terms "below," "beneath," "lower," "above," "on," "on," "upper," and the like can be used to easily describe the relationship of one element or component to another element or component, as depicted in the drawings. The spatially relative terms should be understood to include different orientations of the elements during use or operation in addition to the orientations depicted in the drawings. For example, if an element depicted in the drawings is flipped, an element described as being "below" another element may end up being placed "above" the other element. Thus, the exemplary term "below" can include both the above and below orientations. The elements may also be oriented in other directions, in which case the spatially relative terms can be interpreted according to the orientation.

Although the terms first, second, etc. are used to describe various components, it is to be understood that these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it is to be understood that the first component referred to below may also be the second component within the technical spirit of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "has" are intended to specify that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

The embodiments described in this specification are exemplified and illustrated in the drawings when the display device is a vertical alignment mode display device, but are not limited thereto. In addition, the present invention can be applied to various display devices, such as a patterned vertical alignment mode (PVA mode) display device, an in-plane switching (IPS) display device, a plane-line switching (PLS) display device, a fringe-field switching (FFS) display device, a twisted nematic (TN) display device, and other electrically-controlled birefringence (ECB) display devices.

In addition, the embodiments described in this specification are described and illustrated in the drawings as examples of a case where the display device has a common electrode on top configuration, but are not limited thereto. In addition, the present invention can be applied to a display device having a common electrode on bottom configuration.

The same drawing reference numerals are used throughout the specification for identical or similar parts.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exemplary plan view of one pixel of a display device according to an exemplary embodiment of the present invention, FIG. 2 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in the display device illustrated in FIG. 1, FIG. 3 is a plan view of the protrusion illustrated in FIG. 2, FIGS. 4 and 5 are plan views illustrating modified examples of the protrusion illustrated in FIG. 3, FIGS. 6 to 14 are plan views illustrating other modified examples of the protrusion illustrated in FIG. 3, FIG. 15 is a cross-sectional view of the display device illustrated in FIG. 1 taken along line A-A' of FIG. 1, and FIG. 16 is a cross-sectional view of the display device illustrated in FIG. 1 taken along line B-B' of FIG.

Referring to FIGS. 1 to 16, a display device (1) according to the present embodiment may include a first display substrate (100), a second display substrate (200) facing the first display substrate (100), and a liquid crystal layer (300) positioned between the first display substrate (100) and the second display substrate (200). In addition, the display device (1) may further include a polarizing unit. The polarizing unit may be included in either the first display substrate (100) or the second display substrate (200). Alternatively, it may be provided as a separate configuration from either the first display substrate (100) or the second display substrate (200).

The first display substrate (100) may be a thin film transistor substrate on which switching elements for driving liquid crystal molecules of the liquid crystal layer (300), such as thin film transistors, are formed.

The second display substrate (200) may be a substrate facing the first display substrate (100).

Below, the first display substrate (100) is described.

The first base portion (110) may be an insulating substrate, and the insulating substrate may be transparent. For example, the first base portion (110) may be formed of a glass substrate, a quartz substrate, a transparent resin substrate, etc. In addition, the first base portion (110) may include a polymer or plastic having high heat resistance. In some embodiments, the first base portion (110) may be flexible. That is, the first base portion (110) may be a substrate that can be deformed in shape by rolling, folding, bending, etc.

The first base portion (110) may include a pixel area (PA). The pixel area (PA) may be an area where pixels, which are the smallest units for displaying an image, are located. The pixel area (PA) may include a transparent area (TA) and a light-shielding area (BA). A pixel electrode (190), which will be described later, may be located on the transparent area (TA) of the pixel area (PA), and a switching element, which will be described later, may be located on the light-shielding area (BA). The switching element may be, for example, a thin film transistor (Tr).

A gate line (121) and a gate electrode (124) may be positioned on the first base portion (110). The gate line (121) transmits a gate signal and may extend mainly in one direction. For convenience of explanation, the following description will exemplify a case where the gate line (121) extends in the horizontal direction or the first direction (D1 direction). The gate electrode (124) may protrude from the gate line (121) and be connected to the gate line (121). In some embodiments, the gate line (121) and the gate electrode (124) may include an aluminum series metal such as aluminum (Al) or an aluminum alloy, a silver series metal such as silver (Ag) or a silver alloy, a copper series metal such as copper (Cu) or a copper alloy, a molybdenum series metal such as molybdenum (Mo) or a molybdenum alloy, chromium (Cr), tantalum (Ta), titanium (Ti), and the like .

A gate insulating film (130) may be positioned on the gate line (121) and the gate electrode (124). The gate insulating film (130) may be made of an insulating material, and may be made of, for example, silicon nitride, silicon oxide, silicon oxynitride, etc. The gate insulating film (130) may have a single-layer structure or a multi-layer structure including at least two insulating layers with different physical properties.

A semiconductor layer (154) may be positioned on the gate insulating film (130) and may overlap at least partly with the gate electrode (124). The semiconductor layer (154) may include amorphous silicon, polycrystalline silicon, or an oxide semiconductor.

The data line (171) may be insulated from the gate line (121) and may extend in a direction intersecting the gate line (121). For convenience of explanation, the case in which the data line (121) extends in the vertical direction or the second direction (D2 direction) is described below as an example. The data line (171) may intersect the gate line (121) to define a pixel area (PA).

The source electrode (173) may be connected to the data line (171) and may overlap the gate electrode (124). In some embodiments, the source electrode (173) may protrude from the data line (171) and overlap the gate electrode (124) as shown in FIGS. 1 and 2, but is not limited thereto. In some other embodiments, the source electrode (173) may be positioned on the same line as the data line (171).

The drain electrode (175) may be spaced apart from the source electrode (173) above the gate electrode (124) and may be positioned to face the source electrode (173). The drain electrode (175) may include a rod-shaped portion extending generally parallel to the source electrode (173) and an extension portion on the opposite side.

In some embodiments, the data line (171), source electrode (173), and drain electrode (175) described above may be formed of aluminum, copper, silver, molybdenum, chromium, titanium, tantalum, or alloys thereof.

The gate electrode (124), the source electrode (173), and the drain electrode (175) may form a switching element, such as a thin film transistor (Tr), together with the semiconductor layer (154). The thin film transistor (Tr) may be located on a light-shielding area (BA) in the pixel area (PA).

A passivation layer (180) may be positioned on the gate insulating film (130), the semiconductor layer (154), the source electrode (173), and the drain electrode (175). The passivation layer (180) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride. The passivation layer (180) may protect the thin film transistor (Tr) and prevent a material included in a color filter (230) to be described later from flowing into the semiconductor layer (154).

A contact hole (CH) exposing a portion of the drain electrode (175) may be formed in the passivation layer (180), and the contact hole (CH) may be arranged to overlap with the light-shielding area (BA).

A color filter (230) may be positioned on the passivation layer (180). The color filter (230) may be arranged to overlap the transmission area (TA). In some embodiments, the color filter (230) may not overlap the light-shielding area (BA) or may overlap only a portion of the edge thereof. Also, in some embodiments, the color filter (230) may not overlap the contact hole (CH). The color filter (230) may be made of a photosensitive organic insulating material and may further include a color pigment. In an exemplary embodiment, the color pigment may be any one of a red pigment, a green pigment, and a blue pigment that may represent three primary colors. However, the present invention is not limited thereto, and may include pigments that represent three primary colors, such as magenta, cyan, and yellow.

A pixel electrode (190) may be positioned on the color filter (230). The pixel electrode (190) may be positioned to overlap with a transparent area (TA) in the pixel area (PA). A portion of the pixel electrode (190) may be extended to overlap with a light-shielding area (BA) and may be physically and electrically connected to a drain electrode (175) through a contact hole (185), and the pixel electrode (190) may receive a voltage from the drain electrode (175).

The pixel electrode (190) may be made of a transparent conductive material such as ITO, IZO, ITZO, or AZO.

A protrusion (330) may be positioned on the passivation layer (180). The protrusion (330) may be positioned to overlap with the light-shielding area (BA), and in some embodiments, may be positioned to overlap with the thin film transistor (Tr). In addition, in some embodiments, the protrusion (330) may be positioned apart from the color filter (230), and may not overlap with the contact hole (CH).

The protrusion (330) may include a first sub-color filter (331) and a second sub-color filter (333). The first sub-color filter (331) and the second sub-color filter (333) overlap each other to form an overlapping area (OA). The stacking order of the first sub-color filter (331) and the second sub-color filter (333) may be variously changed. For example, the first sub-color filter (331) may be positioned on the passivation layer (180), and at least a portion of the second sub-color filter (333) may be positioned on the first sub-color filter (331).

When viewed from a planar viewpoint, the first sub-color filter (331) may have a first width (W11) along the first direction (D1), and the second sub-color filter (333) may have a second width (W13) along the first direction (D1). In addition, the first sub-color filter (331) may have a third width (W21) along the second direction (D2) intersecting the first direction (D1), and the second sub-color filter (333) may have a fourth width (W23) along the second direction (D2).

The first width (W11) of the first sub-color filter (331) may be different from the second width (W13) of the second sub-color filter (333), and the third width (W21) of the first sub-color filter (331) may be different from the fourth width (W23) of the second sub-color filter (333). In an exemplary embodiment, the first width (W11) of the first sub-color filter (331) may be 20 micrometers to 60 micrometers within a range different from the second width (W13) of the second sub-color filter (333). In addition, the second width (W13) of the second sub-color filter (333) may be 5 micrometers to 35 micrometers within a range different from the first width (W11) of the first sub-color filter (331). The third width (W21) of the first sub-color filter (331) may be 30 micrometers to 50 micrometers within a different range from the fourth width (W23) of the second sub-color filter (333). In addition, the fourth width (W23) of the second sub-color filter (333) may be 5 micrometers to 30 micrometers within a different range from the third width (W21) of the first sub-color filter (331).

The size relationship between the first width (W11) and the second width (W13) and the size relationship between the third width (W21) and the fourth width (w23) can be changed in various ways.

In some embodiments, the first width (W11) of the first sub-color filter (331) may be smaller than the second width (W13) of the second sub-color filter (333), and the third width (W21) of the first sub-color filter (331) may be larger than the fourth width (W23) of the second sub-color filter (333).

As described above, the first sub-color filter (331) and the second sub-color filter (333) may overlap each other to form an overlapping area (OA), and in some embodiments, when viewed from a planar viewpoint, the first sub-color filter (331) and the second sub-color filter (333) may intersect each other.

In some embodiments, the maximum width (WD1) of the overlapping area (OA) in the first direction (D1) may be substantially equal to the first width (W11) of the first sub-color filter (331). Additionally, the maximum width (WD2) of the overlapping area (OA) in the second direction (D2) may be substantially equal to the fourth width (W23) of the second sub-color filter (333).

The area of the overlapping area (OA) formed by overlapping the first sub-color filter (331) and the second sub-color filter (333) is related to the reliability of the main spacer (MCS) to be described later. For example, if the area of the overlapping area (OA) is not formed at a preset level due to a process margin or the like, there is a possibility that the reliability of the display device (1) may deteriorate due to changes in the height of the spacer (MCS) or in the elastic restoring force of the spacer (MCS) itself. On the other hand, according to an embodiment of the present invention, even if the positions of the first sub-color filter (331) or the second sub-color filter (333) change to some extent due to a process margin, the maximum width (WD1) of the overlapping area (OA) in the first direction (D1) and the maximum width (WD2) in the second direction (D2) may be substantially constant. Accordingly, the area of the overlapping area (OA) between the first sub-color filter (331) and the second sub-color filter (333) can be uniformly formed at a preset level, thereby having the advantage of improving the reliability of the display device (1).

More specifically, the second width (W13) of the second sub-color filter (333) may be larger than the first width (W11) of the first sub-color filter (331). Accordingly, even if the second sub-color filter (333) is formed by being shifted in the opposite direction of the first direction (D1) as illustrated in (a) of FIG. 4 according to a process margin, or by being shifted along the first direction (D1) as illustrated in (b) of FIG. 4, the maximum width (WD1) of the overlapping area (OA) in the first direction (D1) may be substantially the same as the first width (W11) of the first sub-color filter (331). In addition, the area of the overlapping area (OA) between the first sub-color filter (331) and the second sub-color filter (333) may be substantially constant, and thus the area of the overlapping area (OA) may be maintained at a desired level.

In addition, the third width (W21) of the first sub-color filter (331) may be formed larger than the fourth width (W23) of the second sub-color filter (333). Accordingly, even if the first sub-color filter (331) is formed by being shifted in the opposite direction of the second direction (D2) as illustrated in (a) of FIG. 5 according to the process margin, or by being shifted in the second direction (D2) as illustrated in (b) of FIG. 5, the maximum width (WD2) of the overlapping area (OA) in the second direction (D2) may be substantially the same as the fourth width (W23) of the second sub-color filter (333). And the area of the overlapping area (OA) may be substantially constant.

Meanwhile, although FIGS. 2 to 5 illustrate that the planar shape of the first sub-color filter (331) is a square and that the planar shape of the second sub-color filter (333) is a square, this is only an example. In addition, the planar shape of the first sub-color filter (331) and the planar shape of the second sub-color filter (333) may be variously changed, such as a polygonal shape, a circular shape, an elliptical shape, a combination shape of a polygon and a circle, or a combination shape of a polygon and an ellipse.

For example, as illustrated in FIG. 6, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (333) may be formed in a circular shape in which the second width (W13) and the fourth width (W23) are substantially the same.

Or, as illustrated in FIG. 7, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (333) may be formed in an oval shape with a second width (W13) larger than the fourth width (W23).

Or, as illustrated in FIG. 8, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (333) may be formed in an oval shape with a second width (W13) smaller than the fourth width (W23).

Or, as illustrated in FIG. 9, the first sub-color filter (331) may be formed in an oval shape with a first width (W11) smaller than the third width (W21), and the second sub-color filter (333) may be formed in a polygonal shape such as a square.

Or, as illustrated in FIG. 10, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (333) may be formed into a circular shape in which the second width (W13) and the fourth width (W23) are substantially the same.

Or, as illustrated in FIG. 11, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (333) may be formed into an elliptical shape in which the second width (W13) is larger than the fourth width (W23).

Or, as illustrated in FIG. 12, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (333) may be formed into an elliptical shape in which the second width (W13) is smaller than the fourth width (W23).

Or, as illustrated in FIG. 13, the first sub-color filter (331) may be formed in a circular shape with the first width (W11) and the third width (W21) being substantially the same, and the second sub-color filter (333) may be formed in a polygonal shape such as a square.

Or, as illustrated in FIG. 14, the first sub-color filter (331) may be formed into a circular shape in which the first width (W11) and the third width (W21) are substantially the same, and the second sub-color filter (333) may be formed into an oval shape in which the second width (W13) is larger than the fourth width (W23).

The first sub-color filter (331) may be made of a photosensitive organic insulating material and may further include a first color pigment. In an exemplary embodiment, the first color pigment may be any one of a red pigment, a green pigment, and a blue pigment. However, the present invention is not limited thereto, and in some other embodiments, the first sub-color filter (331) may include a pigment representing another primary color, for example, a primary color such as magenta, cyan, or yellow, as the first color pigment.

In some embodiments, the first sub-color filter (331) may be made of the same material as the color filter (230). For example, if the color filter (230) includes a red pigment as the color pigment, the first sub-color filter (331) may also include a red pigment as the first color pigment. In this case, the color filter (230) and the first sub-color filter (331) may be formed simultaneously using the same mask. However, the present invention is not limited thereto, and the color filter (230) may include a different color pigment from the first sub-color filter (331).

In some embodiments, the first sub-color filter (331) may be spaced apart from the color filter (230). Here, being spaced apart means that the first sub-color filter (331) and the color filter (230) do not physically contact each other. That is, in a planar view, the first sub-color filter (331) may be formed in an island shape without being connected to the color filter (230).

The second sub-color filter (333) may be formed of a photosensitive organic insulating material and may further include a second color pigment. The second color pigment may be a different color pigment from the first color pigment included in the first sub-color filter (331). For example, when the first sub-color filter (331) includes a red pigment as the first color pigment, the second sub-color filter (333) may include a green pigment or a blue pigment as the second color pigment. In some embodiments, the second sub-color filter (333) may include a blue pigment. Among the color filters, the blue filter may be formed to a thicker thickness than the red filter and the green filter. Therefore, in order to form the thickness of the protrusion (330) at a desired level, the second sub-color filter (333) may include a blue pigment and may be formed simultaneously with the blue filter using the same mask. However, it is not limited thereto, and the second color pigment included in the second sub-color filter (230) may be selected in various ways within a different range from the first color pigment of the first sub-color filter (331).

In some embodiments, the second sub-color filter (333) may be spaced apart from the color filter (230). That is, in a planar view, the second sub-color filter (333) may be formed in an island shape without being connected to the color filter (230).

When the display device (1) includes a red filter, a green filter, and a blue filter, examples of color pigment combinations that the first sub-color filter (331), the second sub-color filter (333), and the color filter (230) can have are as follows. Each of the parentheses below represents one color pigment combination. In the parentheses, the first color pigment of the first sub-color filter (331), the second color pigment of the second sub-color filter (333), and the color pigment types of the color filter (230) are sequentially described, with R representing a red pigment, G representing a green pigment, and B representing a blue pigment.

(R, G, R), (R, G, G), (R, G, B), (R, B, R), (R, B, G), (R, B, B), (G , R, R), (G, R, G), (G, R, B), (G, B, R), (G, B, G), (G, B, B), (B, R , R), (B, R, G), (B, R, B), (B, G, R), (B, G, G), (B, G, B)

A light-shielding member (220) may be positioned on the protrusion (330) and the passivation layer (180). The light-shielding member (220) is a portion that prevents light leakage and is also called a black matrix. The light-shielding member (220) may include a light-shielding material and may include a photosensitive organic material. The light-shielding member (220) may be arranged to overlap the light-shielding area (BA) and may not overlap the transmission area (TA). The light-shielding member (220) may be formed in a form that extends along the first direction (D1) and may cover a portion of the protrusion (330), the thin film transistor (Tr), the contact hole (CH), and the pixel electrode (190) that overlaps the light-shielding area (BA). In some embodiments, the light-shielding member (220) may further overlap the gate line (121) and the data line (171).

As described above, the color filter (230) may overlap with the transmission area (TA) and may not substantially overlap with the light-shielding area (BA). Accordingly, a portion of the passivation layer (180) located on the light-shielding area (BA) of the first base portion (110) may not be covered by the color filter (230) and may be in direct contact with the light-shielding member (220). In other words, the light-shielding member (220) may be in direct contact with the passivation layer (180) to a certain extent.

A spacer (MCS) may be positioned on the shading member (220). The spacer (MCS) serves to maintain a gap between the first display substrate (100) and the second display substrate (200) facing each other.

The spacer (MCS) can overlap with the protrusion (330). In particular, the spacer (MCS) can overlap with the overlapping area (OA) between the first sub-color filter (331) and the second sub-color filter (333).

The spacer (MCS) may include a shading material. In some embodiments, the spacer (MCS) may be made of the same material as the shading member (220) and may be formed integrally with the shading member (220).

As described above, a protrusion (330) overlapping with a light-shielding area (BA) may be positioned on the passivation layer (180). In addition, a light-shielding member (220) is formed on the protrusion (330), and a step is created in the light-shielding member (220) due to the protrusion (330). In addition, a portion of the light-shielding member (220) where a step is created by the protrusion (330) may become a spacer (MCS).

That is, according to an embodiment of the present invention, in the process of forming the shading member (220), the shading member (220) and the spacer (MCS) can be formed simultaneously by utilizing the step difference by the protrusion (330) without using a separate multi-tone mask. Therefore, there is an advantage of reducing the manufacturing cost by not using a multi-tone mask such as a half-tone mask.

Meanwhile, the protrusion (330) can overlap with the thin film transistor (Tr). Accordingly, the spacer (MCS) on the light-shielding member (220) can also overlap more with the thin film transistor (Tr), and the height of the spacer (MCS) can be increased by the thickness of the thin film transistor (Tr).

Below, the second display substrate (200) is described.

The second display substrate (200) may include a second base portion (210) and a common electrode (270).

The second base portion (210) may be a transparent insulating substrate similar to the first base portion (110). In addition, the second base portion (210) may include a polymer or plastic having high heat resistance. In some embodiments, the second base portion (210) may be flexible.

A common electrode (270) may be positioned on one side of the second base portion (210) facing the first display substrate (100). The common electrode (270) may be made of a transparent conductive material such as ITO, IZO, etc. In some embodiments, the common electrode (270) may be formed entirely over the entire surface of the second insulating substrate (210). A common voltage (Vcom) may be applied to the common electrode (270) to form an electric field together with the pixel electrode (190).

Below, the liquid crystal layer (300) is described.

The liquid crystal layer (300) may include a plurality of liquid crystal molecules having dielectric anisotropy. When an electric field is applied between the first display substrate (100) and the second display substrate (200), the liquid crystal molecules may rotate in a specific direction between the first display substrate (100) and the second display substrate (200), thereby transmitting or blocking light. Here, the term rotation may include not only that the liquid crystal molecules actually rotate, but also that the arrangement of the liquid crystal molecules changes due to the electric field. In some embodiments, the liquid crystal layer (300) may include a reactive mesogen that undergoes a polymerization reaction by light such as ultraviolet rays, or may include a tilt-providing polymer formed by a polymerization reaction of a reactive mesogen. The tilt-providing polymer may provide a tilt to the liquid crystal molecules even when no electric field is formed between the first display substrate (100) and the second display substrate (200).

The display device (1) described above arranges both the color filter (230) and the light-blocking member (220) on the first display substrate (100) where the thin film transistor (Tr) and the pixel electrode (190) are positioned, so that misalignment between the pixel electrode (190) and the color filter (230) or misalignment between the transmission area (TA) and the color filter (230) can be prevented, and also misalignment between the light-blocking member (220) and the light-blocking area (BA) can be prevented.

In addition, since the shading member (220) and the spacer (MCS) can be formed simultaneously by utilizing the thickness of the protrusion (330) itself, there is an advantage of reducing the manufacturing cost, and since the shading member (220) and the spacer (MCS) can be formed simultaneously without using a multi-tone mask such as a half-tone mask, there is an advantage of further reducing the manufacturing cost. In addition, since the protrusion (330) can be formed simultaneously during the manufacturing process of the color filter (230), there is an advantage of simplifying the manufacturing process, and since the overlapping area (OA) between the first sub-color filter (331) and the second sub-color filter (333) can be uniformly maintained despite the process margin, there is an advantage of improving the reliability of the display device (1).

FIG. 17 is a cross-sectional view taken along line A-A' of FIG. 1 of a display device according to another embodiment of the present invention, and FIG. 18 is a cross-sectional view taken along line B-B' of FIG. 1 of a display device according to another embodiment of the present invention.

Referring to FIGS. 17 and 18, a display device (2) according to the present embodiment may include a first display substrate (100-1), a second display substrate (200) facing the first display substrate (100-1), and a liquid crystal layer (300) positioned between the first display substrate (100-1) and the second display substrate (200).

The display device (2) differs from the display device (1 of FIGS. 1, 2, 15 and 16) described above in the description of FIGS. 1 to 16 only in the configuration of the protrusion (330-1), and the other configurations are substantially the same or similar. Therefore, overlapping content is omitted, and the following description focuses on the differences.

The protrusion (330-1) may include a first sub-color filter (331) and a second sub-color filter (333), and the first sub-color filter (331) and the second sub-color filter (333) overlap each other to form an overlapping area (OA). The second sub-color filter (333) may be positioned on the passivation layer (180), and at least a portion of the first sub-color filter (331) may be positioned on the second sub-color filter (333). That is, in the present embodiment, the protrusion (330-1) differs from the protrusion (330 of FIGS. 15 and 16) described above in the description of FIGS. 1 to 16 only in the stacking order of the first sub-color filter (331) and the second sub-color filter (333), and the other configurations may be substantially the same.

In addition, the description of the first sub-color filter (331) and the second sub-color filter (333) is the same as that described above in the descriptions of FIGS. 1 to 16, and thus is omitted.

FIG. 19 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention; FIG. 20 is a cross-sectional view taken along line A1-A1' of FIG. 19 of a display device according to another embodiment of the present invention; and FIG. 21 is a cross-sectional view taken along line B1-B1' of FIG. 19 of a display device according to another embodiment of the present invention.

Referring to FIGS. 19 to 21, a display device (3) according to the present embodiment may include a first display substrate (100-2), a second display substrate (200) facing the first display substrate (100-2), and a liquid crystal layer (300) positioned between the first display substrate (100-2) and the second display substrate (200).

The display device (3) has a difference in the shape of the protrusion (330-2) from the protrusion (330 of FIG. 2, FIG. 15, and FIG. 16) of the display device (1 of FIG. 1, FIG. 2, FIG. 15, and FIG. 16) described above in the description of FIGS. 1 to 16, and the other configurations are substantially the same or similar. Therefore, overlapping descriptions are omitted and the differences are mainly explained.

The protrusion (330-2) includes a first sub-color filter (3311) and a second sub-color filter (333) that overlap each other, and the first sub-color filter (3311) may be connected to the color filter (230) along the second direction (D2) without being spaced apart from the color filter (230). In some embodiments, the first sub-color filter (3311) may be connected to two color filters (230) that are adjacent to each other along the second direction (D2).

The stacking order of the first sub-color filter (3311) and the second sub-color filter (333) can be varied. For example, the first sub-color filter (3311) can be positioned on the passivation layer (180), and at least a portion of the second sub-color filter (333) can be positioned on the first sub-color filter (3311).

In some embodiments, the first sub-color filter (3311) and the color filter (230) may include the same color pigment and may be made of the same material. That is, the first sub-color filter (3311) and the color filter (230) may be formed integrally and simultaneously using the same mask.

Assuming that the display device (3) includes a red filter, a green filter, and a blue filter, examples of color pigment combinations that the first sub-color filter (3311), the second sub-color filter (333), and the color filter (230) can have are as follows. Each of the parentheses below represents one color pigment combination. In the parentheses, the first color pigment of the first sub-color filter (3311), the second color pigment of the second sub-color filter (333), and the color pigment types of the color filter (230) are sequentially described, with R representing a red pigment, G representing a green pigment, and B representing a blue pigment.

(R, G, R), (R, B, R), (G, R, G), (G, B, G), (B, R, B), (B, G, B)

FIG. 22 is a cross-sectional view taken along line A1-A1' of FIG. 19 of a display device according to another embodiment of the present invention, and FIG. 23 is a cross-sectional view taken along line B1-B1' of FIG. 19 of a display device according to another embodiment of the present invention.

A display device (4) according to the present embodiment may include a first display substrate (100-3), a second display substrate (200) facing the first display substrate (100-3), and a liquid crystal layer (300) positioned between the first display substrate (100-3) and the second display substrate (200).

The display device (4) differs from the display device (1 of FIGS. 1, 2, 15 and 16) described above in the description of FIGS. 1 to 16 only in the configuration of the protrusion (330-3), and the other configurations are substantially the same or similar. Therefore, overlapping content is omitted, and the following description focuses on the differences.

The protrusion (330-3) includes a first sub-color filter (3311) and a second sub-color filter (333), and the second sub-color filter (333) may be positioned on the passivation layer (180), and at least a portion of the first sub-color filter (3311) may be positioned on the second sub-color filter (333). That is, the protrusion (330-3) differs from the protrusion (330-2 of FIGS. 19 to 21) described above in the description of FIGS. 19 to 21 only in the stacking order of the first sub-color filter (3311) and the second sub-color filter (333), and the other configurations may be substantially the same.

FIG. 24 is a plan view schematically illustrating an arrangement relationship among a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention; FIG. 25 is a plan view of the protrusion illustrated in FIG. 24; FIGS. 26 to 40 are plan views illustrating modified examples of the protrusion illustrated in FIG. 25; FIG. 41 is a cross-sectional view taken along line A2-A2' of FIG. 24 of a display device according to another embodiment of the present invention; and FIG. 42 is a cross-sectional view taken along line B2-B2' of FIG. 24 of a display device according to another embodiment of the present invention.

Referring to FIGS. 24 to 42, a display device (5) according to the present embodiment may include a first display substrate (100-4), a second display substrate (200) facing the first display substrate (100-4), and a liquid crystal layer (300) positioned between the first display substrate (100-4) and the second display substrate (200).

The display device (5) differs from the display device (1 of FIGS. 1, 2, 15 and 16) described above in the description of FIGS. 1 to 16 only in the configuration of the protrusion (330-4), and the other configurations are substantially the same or similar. Therefore, overlapping content is omitted, and the following description focuses on the differences.

The protrusion (330-4) may include a first sub-color filter (331) and a second sub-color filter (3333), and the first sub-color filter (331) and the second sub-color filter (3333) overlap each other to form an overlapping area (OAa). The first sub-color filter (331) may be positioned on the passivation layer (180), and at least a portion of the second sub-color filter (3333) may be positioned on the first sub-color filter (331). In some embodiments, the second sub-color filter (3333) may be positioned entirely on the first sub-color filter (331).

When viewed from a planar viewpoint, the first sub-color filter (331) may have a first width (W11) along the first direction (D1), and the second sub-color filter (333) may have a second width (W14) along the first direction (D1). In addition, the first sub-color filter (331) may have a third width (W21) along the second direction (D2), and the second sub-color filter (3333) may have a fourth width (W24) along the second direction (D2).

The first width (W11) may be different from the second width (W14), and the third width (W21) may be different from the fourth width (W24).

In some embodiments, the first width (W11) of the first sub-color filter (331) may be larger than the second width (W14) of the second sub-color filter (3333), and the third width (W21) of the first sub-color filter (331) may be larger than the fourth width (W24) of the second sub-color filter (3333).

In some embodiments, when viewed from a planar perspective, the second sub-color filter (3333) may completely overlap the first sub-color filter (331).

In some embodiments, the maximum width (WD1a) of the overlapping area (OAa) in the first direction (D1) may be substantially equal to the second width (W14) of the second sub-color filter (3333). In addition, the maximum width (WD2a) of the overlapping area (OAa) in the second direction (D2) may be substantially equal to the fourth width (W24) of the second sub-color filter (3333). In addition, the area of the overlapping area (OAa) in a planar view may be substantially equal to the area of the second sub-color filter (3333).

As described above, the first width (W11) can be larger than the second width (W14), and the third width (W13) can be larger than the fourth width (W24). Therefore, even if the first sub-color filter (331) is shifted in at least one direction among the first direction (D1), the direction opposite to the first direction (D1), the second direction (D2), and the direction opposite to the second direction (D2), the area of the overlapping area (OAa) can be maintained substantially the same as the area of the second sub-color filter (3333). Similarly, even if the second sub-color filter (3333) is shifted in at least one direction among the first direction (D1), the direction opposite to the first direction (D1), the second direction (D2), and the direction opposite to the second direction (D2), the area of the overlapping area (OAa) can be maintained substantially the same as the area of the second sub-color filter (3333).

Meanwhile, although FIGS. 24 and 25 illustrate that the planar shape of the first sub-color filter (331) is a square and that the planar shape of the second sub-color filter (3333) is a square, this is only an example. In addition, the planar shape of the first sub-color filter (331) and the planar shape of the second sub-color filter (3333) may be variously changed, such as a polygonal shape, a circular shape, an elliptical shape, a combination shape of a polygon and a circle, and a combination shape of a polygon and an ellipse.

For example, as illustrated in FIG. 26, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (3333) may be formed in a circular shape in which the second width (W14) and the fourth width (W24) are substantially the same.

Or, as illustrated in FIG. 27, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (3333) may be formed in an oval shape with a second width (W14) larger than the fourth width (W24).

Or, as illustrated in FIG. 28, the first sub-color filter (331) may be formed in a polygonal shape such as a square, and the second sub-color filter (3333) may be formed in an oval shape with the second width (W14) being smaller than the fourth width (W24).

Or, as illustrated in FIG. 29, the first sub-color filter (331) may be formed in an elliptical shape with a first width (W11) smaller than the third width (W21), and the second sub-color filter (3333) may be formed in a polygonal shape such as a square.

Or, as illustrated in FIG. 30, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (3333) may be formed into a circular shape in which the second width (W14) and the fourth width (W24) are substantially the same.

Or, as illustrated in FIG. 31, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (3333) may be formed into an elliptical shape in which the second width (W14) is larger than the fourth width (W24).

Or, as illustrated in FIG. 32, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is smaller than the third width (W21), and the second sub-color filter (3333) may be formed into an elliptical shape in which the second width (W14) is smaller than the fourth width (W24).

Or, as illustrated in FIG. 33, the first sub-color filter (331) may be formed in a circular shape with the first width (W11) and the third width (W21) being substantially the same, and the second sub-color filter (3333) may be formed in a polygonal shape such as a square.

Or, as illustrated in FIG. 34, the first sub-color filter (331) may be formed into a circular shape in which the first width (W11) and the third width (W21) are substantially the same, and the second sub-color filter (3333) may be formed into a circular shape in which the second width (W14) and the fourth width (W24) are substantially the same.

Or, as illustrated in FIG. 35, the first sub-color filter (331) may be formed into a circular shape in which the first width (W11) and the third width (W21) are substantially the same, and the second sub-color filter (3333) may be formed into an oval shape in which the second width (W14) is larger than the fourth width (W24).

Or, as illustrated in FIG. 36, the first sub-color filter (331) may be formed into a circular shape in which the first width (W11) and the third width (W21) are substantially the same, and the second sub-color filter (3333) may be formed into an oval shape in which the second width (W14) is smaller than the fourth width (W24).

Or, as illustrated in FIG. 37, the first sub-color filter (331) may be formed in an elliptical shape with a first width (W11) larger than the third width (W21), and the second sub-color filter (3333) may be formed in a polygonal shape such as a square.

Or, as illustrated in FIG. 38, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is larger than the third width (W21), and the second sub-color filter (3333) may be formed into a circular shape in which the second width (W14) is substantially equal to the fourth width (W24).

Or, as illustrated in FIG. 39, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is larger than the third width (W21), and the second sub-color filter (3333) may be formed into an elliptical shape in which the second width (W14) is larger than the fourth width (W24).

Or, as illustrated in FIG. 40, the first sub-color filter (331) may be formed into an elliptical shape in which the first width (W11) is larger than the third width (W21), and the second sub-color filter (3333) may be formed into an elliptical shape in which the second width (W14) is smaller than the fourth width (W24).

In addition, the shape of the first sub-color filter (331) and the shape of the second sub-color filter (3333) can be changed in various ways.

FIG. 43 is a cross-sectional view taken along line A2-A2' of FIG. 24 of a display device according to another embodiment of the present invention, and FIG. 44 is a cross-sectional view taken along line B2-B2' of FIG. 24 of a display device according to another embodiment of the present invention.

Referring to FIGS. 43 and 44, a display device (6) according to the present embodiment may include a first display substrate (100-5), a second display substrate (200) facing the first display substrate (100-5), and a liquid crystal layer (300) positioned between the first display substrate (100-5) and the second display substrate (200).

The display device (6) differs from the display device (5 of FIGS. 24, 41, and 42) described above in the description of FIGS. 24 to 42 only in the configuration of the protrusion (330-5), and the other configurations are substantially the same or similar. Therefore, overlapping content is omitted, and the following description focuses on the differences.

The second sub-color filter (3333) of the protrusion (330-5) may be positioned on the passivation layer (180), and at least a portion of the first sub-color filter (331) may be positioned on the second sub-color filter (3333). That is, in the present embodiment, the protrusion (330-5) may be different from the display device (5 of FIGS. 24, 41, and 42) described above in the description of FIGS. 24 to 42 only in the stacking order of the first sub-color filter (331) and the second sub-color filter (3333), and the other configurations may be substantially the same.

FIG. 45 is a plan view schematically illustrating the arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention; FIG. 46 is a cross-sectional view taken along line A3-A3' of FIG. 45 of a display device according to another embodiment of the present invention; and FIG. 47 is a cross-sectional view taken along line B3-B3' of FIG. 45 of a display device according to another embodiment of the present invention.

Referring to FIGS. 45 to 47, a display device (7) according to the present embodiment may include a first display substrate (100-6), a second display substrate (200) facing the first display substrate (100-6), and a liquid crystal layer (300) positioned between the first display substrate (100-6) and the second display substrate (200).

The display device (7) differs from the display device (5 of FIG. 24, FIG. 41, and FIG. 42) described above in the shape of the protrusion (330-6) of FIG. 24 to FIG. 42, and the other configurations are substantially the same or similar.

The protrusion (330-6) includes a first sub-color filter (3311) and a second sub-color filter (3333) that overlap each other, and the first sub-color filter (3311) can be connected to each other along the second direction (D2) without being separated from the color filter (230).

The first sub-color filter (3311) may be positioned on the passivation layer (180), and the second sub-color filter (3333) may be positioned on the first sub-color filter (3311). A more specific description of the first sub-color filter (3311) is the same as that described above in the descriptions of FIGS. 19 to 21.

FIG. 48 is a cross-sectional view taken along line A3-A3' of FIG. 45 of a display device according to another embodiment of the present invention, and FIG. 49 is a cross-sectional view taken along line B3-B3' of FIG. 45 of a display device according to another embodiment of the present invention.

Referring to FIGS. 48 and 49, a display device (8) according to the present embodiment may include a first display substrate (100-7), a second display substrate (200) facing the first display substrate (100-7), and a liquid crystal layer (300) positioned between the first display substrate (100-7) and the second display substrate (200).

The display device (8) differs from the display device (7 of FIGS. 45 to 47) described above in the shape of the protrusion (330-7) of FIGS. 45 to 47, and the other configurations are substantially the same or similar.

The second sub-color filter (3333) of the protrusion (330-7) may be positioned on the passivation layer (180), and at least a portion of the first sub-color filter (3311) may be positioned on the second sub-color filter (3333). That is, in the present embodiment, the protrusion (330-7) differs from the protrusion (330-6 of FIGS. 45 to 47) described above in the description of FIGS. 45 to 47 only in the stacking order of the first sub-color filter (3311) and the second sub-color filter (3333), and the other configurations may be substantially the same.

FIG. 50 is a plan view schematically illustrating three pixels of a display device according to another embodiment of the present invention, FIG. 51 is a plan view schematically illustrating an arrangement relationship between a color filter, a protrusion, a gate line, and a data line in the display device illustrated in FIG. 50, FIG. 52 is a cross-sectional view of the display device illustrated in FIG. 51 taken along line A4-A4' of FIG. 51, FIG. 53 is a cross-sectional view of the display device illustrated in FIG. 51 taken along line B4-B4' of FIG. 51, FIG. 54 is a cross-sectional view of the display device illustrated in FIG. 51 taken along line B5-B5' of FIG. 51, and FIG. 55 is a cross-sectional view of the display device illustrated in FIG. 51 taken along line B6-B6' of FIG.

Referring to FIGS. 50 to 55, a display device (9) according to the present embodiment may include a first display substrate (100-8), a second display substrate (200) facing the first display substrate (100-8), and a liquid crystal layer (300) positioned between the first display substrate (100-8) and the second display substrate (200).

In the following, any content that overlaps with what was explained previously will be briefly explained or omitted, and the differences will be explained primarily.

Below, the first display board (100-8) is described.

The first base portion (110) may be an insulating substrate.

The first base portion (110) may include a first pixel area (PA1), a second pixel area (PA2), and a third pixel area (PA3) sequentially positioned along the first direction (D1). The first pixel area (PA1) may include a first transparent area (TA1) and a first shading area (BA1). The second pixel area (PA2) may include a second transparent area (TA2) and a second shading area (BA2), and the third pixel area (PA3) may include a third transparent area (TA3) and a third shading area (BA3).

A gate line (121), a first gate electrode (124a), a second gate electrode (124b), and a third gate electrode (124c) may be positioned on the first base portion (110). The gate line (121) transmits a gate signal and may extend mainly in a horizontal direction or a first direction (D1 direction). The first gate electrode (124a), the second gate electrode (124b), and the third gate electrode (124c) may protrude from the gate line (121) and be connected to the gate line (121). The first gate electrode (124a) may overlap the first light-shielding area (BA1), the second gate electrode (124b) may overlap the second light-shielding area (BA2), and the third gate electrode (124c) may overlap the third light-shielding area (BA3).

A gate insulating film (130) may be positioned on the gate line (121), the first gate electrode (124a), the second gate electrode (124b), and the third gate electrode (124c).

A first semiconductor layer (154a) overlapping the first gate electrode (124a), a second semiconductor layer (154b) overlapping the second gate electrode (124b), and a third semiconductor layer (154c) overlapping the third gate electrode (124c) may be positioned on the gate insulating film (130).

On the gate insulating film (130), a first data line (171a), a second data line (171b), and a third data line (171c) may be positioned, which are insulated from the gate line (121) and extend in the second direction (D2 direction). The first data line (171a) may intersect the gate line (121) to define a first pixel area (PA1). The second data line (171b) may intersect the gate line (121) to define a second pixel area (PA2), and the third data line (171c) may intersect the gate line (121) to define a third pixel area (PA3).

A first source electrode (173a) connected to a first data line (171a) and a first drain electrode (175a) spaced apart from the first source electrode (173a) may be positioned on a first semiconductor layer (154a). A second source electrode (173b) connected to a second data line (171b) and a second drain electrode (175b) spaced apart from the second source electrode (173b) may be positioned on a second semiconductor layer (154b), and a third source electrode (173c) connected to a third data line (171c) and a third drain electrode (175c) spaced apart from the third source electrode (173c) may be positioned on a third semiconductor layer (154c).

The first gate electrode (124a), the first source electrode (173a), and the first drain electrode (175a) can form a first thin-film transistor (Tr1) together with the first semiconductor layer (154a). In addition, the second gate electrode (124b), the second source electrode (173b), the second drain electrode (175b), and the second semiconductor layer (154b) can form a second thin-film transistor (Tr2), and the third gate electrode (124c), the third source electrode (173c), the third drain electrode (175c), and the third semiconductor layer (154c) can form a third thin-film transistor (Tr3).

The first thin-film transistor (Tr1) may be arranged to overlap the first light-shielding region (BA1), the second thin-film transistor (Tr2) may be arranged to overlap the second light-shielding region (BA2), and the third thin-film transistor (Tr3) may be arranged to overlap the third light-shielding region (BA3).

A passivation layer (180) may be positioned on the first thin film transistor (Tr1), the second thin film transistor (Tr2), and the third thin film transistor (Tr3).

A first contact hole (CH1) exposing the first drain electrode (175a), a second contact hole (CH2) exposing the second drain electrode (175b), and a third contact hole (CH3) exposing the third drain electrode (175c) can be formed in the passivation layer (180).

A first color filter (230a) overlapping the first transmission area (TA1), a second color filter (230b) overlapping the second transmission area (TA2), and a third color filter (230c) overlapping the third transmission area (TA3) may be positioned on the passivation layer (180). In some embodiments, the first color filter (230a) may not overlap the first contact hole (CH1), the second color filter (230b) may not overlap the second contact hole (CH2), and the third color filter (230c) may not overlap the third contact hole (CH3). The first color filter (230a), the second color filter (230b), and the third color filter (230c) may each include different color pigments. Hereinafter, for convenience of explanation, the first color filter (230a) is a red filter including a red pigment, the second color filter (230b) is a green filter including a green pigment, and the third color filter (230c) is a blue filter including a blue pigment. However, the present invention is not limited thereto. When the third color filter (230c) is a blue filter, the thickness (T3) of the third color filter (230c) may be thicker than the thickness (T1) of the first color filter (230a) and the thickness (T2) of the second color filter (230b).

A first pixel electrode (190a) may be positioned on the first color filter (230a) to overlap the first transparent area (TA1) and be connected to the first drain electrode (175a) through the first contact hole (CH1). In addition, a second pixel electrode (190b) may be positioned on the second color filter (230b) to overlap the second transparent area (TA2) and be connected to the second drain electrode (175b) through the second contact hole (CH2), and a third pixel electrode (190c) may be positioned on the third color filter (230c) to overlap the third transparent area (TA3) and be connected to the third drain electrode (175c) through the third contact hole (CH3).

A protrusion (330) overlapping with the first light-shielding region (BA1) may be positioned on the passivation layer (180). In some embodiments, the protrusion (330) may be positioned to overlap with the first thin film transistor (Tr1).

The protrusion (330) may include a first sub-color filter (331) and a second sub-color filter (333) overlapping the first sub-color filter (331). The description of the first sub-color filter (331) and the second sub-color filter (333) is the same as that described above in the descriptions of FIGS. 1 to 16.

The first sub-color filter (331) may be made of a photosensitive organic insulating material and may further include a first color pigment.

The second sub-color filter (333) may be made of a photosensitive organic insulating material and may further include a second color pigment different from the first color pigment of the first sub-color filter (331). For example, when the first sub-color filter (331) includes a red pigment as the first color pigment, the second sub-color filter (333) may include a blue pigment as the second color pigment.

A third sub-color filter (335) overlapping the second light-shielding area (BA1) and a fourth sub-color filter (337) overlapping the third light-shielding area (BA2) may be positioned on the passivation layer (180). In some embodiments, the third sub-color filter (335) may be positioned to overlap the second thin-film transistor (Tr2), and the fourth sub-color filter (337) may be positioned to overlap the third thin-film transistor (Tr3).

The third sub-color filter (335) may be formed of a photosensitive organic insulating material and may include a color pigment. For example, the third sub-color filter (335) may include one of a red pigment, a green pigment, and a blue pigment. In some embodiments, the third sub-color filter (335) may include a different color pigment from the second color filter (230b), and may include the same color pigment as the second sub-color filter (333), for example, a blue pigment. In this case, the second sub-color filter (333), the third color filter (230c), and the third sub-color filter (335) may be formed simultaneously using the same mask. Or in some other embodiments, the third sub-color filter (335) may include the same color pigment as the second color filter (230b), and may include a different color pigment from the second sub-color filter (333) and the first sub-color filter (331), for example, a green pigment. In this case, the thickness of the third sub-color filter (335) can be adjusted independently from the thickness of the first sub-color filter (331) and the thickness of the second sub-color filter (333), and accordingly, the height between the spacer (MCS) and the first auxiliary spacer (SCS1) described below can be adjusted independently.

Meanwhile, the fourth sub-color filter (337) may be made of a photosensitive organic insulating material and may include a color pigment. In some embodiments, the fourth sub-color filter (337) may include the same color pigment as the third color filter (230c) and the third sub-color filter (335), for example, a blue pigment. In this case, the second sub-color filter (333), the third color filter (230c), the third sub-color filter (335), and the fourth sub-color filter (337) may be formed simultaneously using the same mask. Or, in some other embodiments, the fourth sub-color filter (337) may be different from the third color filter (230c) and may include the same color pigment as the third sub-color filter (335), for example, a green pigment. In this case, the thickness of the fourth sub-color filter (337) can be adjusted independently from the thickness of the first sub-color filter (331) and the thickness of the second sub-color filter (333), and accordingly, the height between the spacer (MCS) and the second auxiliary spacer (SCS2) described later can be adjusted independently.

When the display device (8) includes a red filter, a green filter, and a blue filter, examples of color pigment combinations that the first sub-color filter (331), the second sub-color filter (333), the third sub-color filter (335), and the fourth sub-color filter (337) can have are as follows. Each of the parentheses below represents one color pigment combination. In the parentheses, the types of the first color pigment of the first sub-color filter (331), the second color pigment of the second sub-color filter (333), the color pigment of the third sub-color filter (335), and the color pigment of the fourth sub-color filter (337) are sequentially described, and R represents a red pigment, G represents a green pigment, and B represents a blue pigment.

(R, G, R, R), (R, G, R, G), (R, G, R, B), (R, G, G, R), (R, G, G, G), (R, G, G, B), (R, G, B, R), (R, G, B, G), (R, G, B, B), (R, B, R, R), (R, B, R, G), (R, B, R, B), (R, B, G, R), (R, B, G, G), (R, B, G, B), (R, B, B, R), (R, B, B, G), (R, B, B, B), (G, R, R, R), (G, R, R, G), (G, R, R, B), (G, R, G, R), (G, R, G, G), (G, R, G, B), (G, R, B, R), (G, R, B, G), (G, R, B, B), (G, B, R, R), (G, B, R, G), (G, B, R, B), (G, B, G, R), (G, B, G, G), (G, B, G, B), (G, B, B, R), (G, B, B, G), (G, B, B, B)

In some embodiments, the color pigment included in the first color filter (230a) may be the same as the first color pigment of the first sub-color filter (331) or the second color pigment of the second sub-color filter (333) as described above. Or, in some other embodiments, the color pigment included in the first color filter (230a) may be a third color pigment different from the first color pigment of the first sub-color filter (331) and the second color pigment of the second sub-color filter (333).

The second color filter (230b) adjacent to the first color filter (230a) may include a different color pigment from the first color filter (230a).

When the display device (8) includes a red filter, a green filter, and a blue filter, examples of color pigment combinations among the first sub-color filter (331), the second sub-color filter (333), the third sub-color filter (335), the first color filter (230a), and the second color filter (230b) are as follows. Each of the parentheses below represents one color pigment combination. In the parentheses, the types of the first color pigment of the first sub-color filter (331), the second color pigment of the second sub-color filter (333), the color pigment of the third sub-color filter (335), the color pigment of the first color filter (230a), and the color pigment of the second color filter (230b) are sequentially described, and R represents a red pigment, G represents a green pigment, and B represents a blue pigment.

(R, G, R, R, G), (R, G, R, R, B), (R, G, R, G, R), (R, G, R, G, B), (R , G, R, B, R), (R, G, R, B, G), (R, G, G, R, G), (R, G, G, R, B), (R, G , G, G, R), (R, G, G, G, B), (R, G, G, B, R), (R, G, G, B, G), (R, G, B , R, G), (R, G, B, R, B), (R, G, B, G, R), (R, G, B, G, B), (R, G, B, B , R), (R, G, B, B, G), (R, B, R, R, G), (R, B, R, R, B), (R, B, R, G, R ), (R, B, R, G, B), (R, B, R, B, R), (R, B, R, B, G), (R, B, G, R, G), (R, B, G, R, B), (R , B, G, G, R), (R, B, G, G, B), (R, B, G, B, R), (R, B, G, B, G), (R, B , B, R, G), (R, B, B, R, B), (R, B, B, G, R), (R, B, B, G, B), (R, B, B , B, R), (R, B, B, B, G), (G, R, R, R, G), (G, R, R, R, B), (G, R, R, G , R), (G, R, R, G, B), (G, R, R, B, R), (G, R, R, B, G), (G, R, G, R, G ), (G, R, G, R, B), (G, R, G, G, R), (G, R, G, G, B), (G, R, G, B, R), (G, R, G, B, G), (G, R, B, R, G), (G, R, B, R, B), (G, R, B, G, R), (G, R, B, G, B), (G, R, B, B, R), (G, R, B, B, G), (G, B, R, R, G), (G, B, R, R, B), (G, B, R, G, R), (G, B, R, G, B), (G, B, R, B, R), (G, B, R, B, G), (G, B, G, R, G) , (G, B, G, R, B), (G, B, G, G, R), (G, B, G, G, B), (G, B, G, B, R), ( G, B, G, B, G), (G, B, B, R, G), (G, B, B, R, B), (G, B, B, G, R), (G, B, B, G, B), (G, B, B, B, R), (G, B, B, B, G)

The protrusion (330) includes two sub-color filters, i.e., a first sub-color filter (331) and a second sub-color filter (333), and the height (H1) of the protrusion (330) measured with respect to one surface of the first base portion (110) may be greater than the height (H2) of the third sub-color filter (335) and the height (H3) of the fourth sub-color filter (337), both measured with respect to one surface of the first base portion (110).

A first shading member (220a) overlapping the first shading area (BA1) may be positioned on the protrusion (330) and the passivation layer (180). The first shading member (220a) may extend along the first direction (D1) to cover the entire first shading area (BA1). As described above, the first color filter (230a) may not overlap the first shading area (BA1). Therefore, the first shading member (220a) may partially be in direct contact with the passivation layer (180).

A spacer (MCS) may be positioned on the first shading member (220a). The spacer (MCS) contacts the second display substrate (200) and serves to maintain a gap between the first display substrate (100) and the second display substrate (200) facing each other, and may function as a main column spacer.

The spacer (MCS) may overlap the protrusion (330) and may include a shading material. In some embodiments, the spacer (MCS) may be made of the same material as the first shading member (220a) and may be formed integrally with the first shading member (220a).

A second shading member (220b) overlapping the second shading area (BA2) may be positioned on the protrusion (330) and the passivation layer (180). The second shading member (220b) may extend along the first direction (D1) to cover the entire second shading area (BA2). The second color filter (230b) may not overlap the second shading area (BA2). Therefore, the second shading member (220b) may partially be in direct contact with the passivation layer (180).

A first auxiliary spacer (SCS1) may be positioned on the second shading member (220b). The first auxiliary spacer (MCS) may be spaced apart from the second display substrate (200), and may play an auxiliary role in supporting the gap between the second display substrate (200) and the first display substrate (100) by assisting the role of the spacer (MCS). In other words, the first auxiliary spacer (SCS1) may function as a sub-column spacer.

The first auxiliary spacer (SCS1) may overlap with the third sub-color filter (335) and may include a light-shielding material. In some embodiments, the first auxiliary spacer (SCS1) may be made of the same material as the second light-shielding member (220b) and may be formed integrally with the second light-shielding member (220b).

A third shading member (220c) overlapping the third shading area (BA3) may be positioned on the protrusion (330) and the passivation layer (180), and the third shading member (220c) may extend along the first direction (D1) to cover the entire third shading area (BA3). The third color filter (230c) may not overlap the third shading area (BA2). Therefore, the third shading member (220c) may partially be in direct contact with the passivation layer (180).

A second auxiliary spacer (SCS2) may be positioned on the third shading member (220c), and the second auxiliary spacer (SCS2) may overlap with the fourth sub-color filter (337). The second auxiliary spacer (SCS2) may include a shading material, and in some embodiments, may be made of the same material as the third shading member (220c) and may be formed integrally with the third shading member (220c).

The spacer (MCS) is in contact with the second display substrate (200), and the first auxiliary spacer (SCS1) and the second auxiliary spacer (SCS2) can be spaced apart from the second display substrate (200). Therefore, the height of the spacer (MCS) can be greater than the height of the first auxiliary spacer (SCS1) and the height of the second auxiliary spacer (SCS2). For example, the height (HM1) of the spacer (MCS) measured with respect to one surface of the first base portion (110) can be greater than the height (HS1) of the first auxiliary spacer (SCS1) and the height (HS2) of the second auxiliary spacer (SCS2) measured with respect to one surface of the first base portion (110).

The first shading member (220a), the second shading member (220b), and the third shading member (220c) may be made of the same material and may be connected to each other along the first direction (D1). For example, the first shading member (220a), the second shading member (220b), and the third shading member (220c) may be made integrally and may be formed simultaneously within the same process.

The protrusion (330) overlapping the first shading area (BA1) includes the first sub-color filter (331) and the second sub-color filter (333), and a step is created in the first shading member (220a) by the protrusion (330). In addition, the thickness of the third sub-color filter (335) overlapping the second shading area (BA2) and the height of the third sub-color filter (335) measured based on one surface of the first base portion (110) are smaller than the thickness and height of the protrusion (330). Similarly, the thickness of the fourth sub-color filter (337) overlapping the third shading area (BA3) and the height of the fourth sub-color filter (337) measured based on one surface of the first base portion (110) are smaller than the thickness and height of the protrusion (330). Therefore, in the process of forming the second shading member (220b), the first auxiliary spacer (SCS1) is formed by the third sub-color filter (335), and in the process of forming the third shading member (220c), the second auxiliary spacer (SCS2) is formed by the fourth sub-color filter (337). In addition, the height of the first auxiliary spacer (SCS1) and the height of the second auxiliary spacer (SCS2) measured based on one surface of the first base portion (110) are formed lower than the height of the spacer (MCS).

According to the present embodiment, the first shading member (220a), the second shading member (220b), the third shading member (220c), the spacer (MCS), the first auxiliary spacer (SCS1), and the second auxiliary spacer (SCS2) can be formed simultaneously using the protrusion (330), the third sub-color filter (335), and the fourth sub-color filter (337) without using a separate multi-tone mask, so that there is an advantage in that the manufacturing process is simplified. In addition, since a full-tone mask can be used without using a multi-tone mask, there is an advantage in that the manufacturing cost is further reduced. In addition, when the third sub-color filter (335) and the fourth sub-color filter (337) include different color pigments from the second sub-color filter (333) and the first sub-color filter (331), the thickness of the third sub-color filter (335) and the thickness of the fourth sub-color filter (337) can be adjusted independently from the thickness of the first sub-color filter (331) and the thickness of the second sub-color filter (333), which has the advantage of allowing the height of the first auxiliary spacer (SCS1) and the height of the second auxiliary spacer (SCS2) to be adjusted independently from the height of the spacer (MCS).

Meanwhile, although not shown in the drawing, the protrusion (330) may be changed to the protrusion (330-1 of FIGS. 17 and 18) described above in the description of FIGS. 17 and 18.

FIG. 56 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.

Referring to FIG. 56, the display device (10) according to the present embodiment has a difference in the shape of the protrusion (330-2) from the display device (9 of FIGS. 52 to 55) described above in the description of FIGS. 52 to 55, and the other configurations are substantially the same or similar.

The protrusion (330-2) includes a first sub-color filter (3311) and a second sub-color filter (333) that overlap each other, and the first sub-color filter (3311) can be connected to the first color filter (230a) along the second direction (D2) without being spaced apart from each other. The specific description of the protrusion (330-2) is the same as that described above in the descriptions of FIGS. 19 to 21.

Meanwhile, although not shown in the drawing, the protrusion (330-2) may be changed to the protrusion (330-3 of FIGS. 22 and 23) described above in the description of FIGS. 22 and 23.

FIG. 57 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.

Referring to FIG. 57, the display device (11) according to the present embodiment has a difference in the shape of the protrusion (330-4) from the display device (9 of FIGS. 52 to 55) described above in the description of FIGS. 52 to 55, and the other configurations are substantially the same or similar.

The protrusion (330-4) includes a first sub-color filter (331) and a second sub-color filter (3333) that overlap each other, and a width in the first direction (D1) of the second sub-color filter (3333) may be smaller than a width in the first direction (D1) of the first sub-color filter (331), and a width in the second direction (D2) of the second sub-color filter (3333) may be smaller than a width in the second direction (D2) of the first sub-color filter (331). A specific description of the protrusion (330-4) is the same as that described above in the descriptions of FIGS. 24 to 42.

Meanwhile, although not shown in the drawing, the protrusion (330-4) may be changed to the protrusion (330-5 of FIGS. 43 and 44) described above in the description of FIGS. 43 and 44.

FIG. 58 is a plan view schematically illustrating an exemplary arrangement relationship between a color filter, a protrusion, a gate line, and a data line in a display device according to another embodiment of the present invention.

Referring to FIG. 58, the display device (12) according to the present embodiment has a difference in the shape of the protrusion (330-6) from the display device (9 of FIGS. 52 to 55) described above in the description of FIGS. 52 to 55, and the other configurations are substantially the same or similar.

The protrusion (330-6) includes a first sub-color filter (3311) and a second sub-color filter (3333) that overlap each other, and a width of the second sub-color filter (3333) in the first direction (D1) may be smaller than a width of the first sub-color filter (331) in the first direction (D1), and a width (D2) of the second sub-color filter (3333) in the second direction may be smaller than a width of the first sub-color filter (331) in the second direction (D2). In addition, the first sub-color filter (3311) may be connected to the first color filter (230a) along the second direction (D2) without being spaced apart from it. A specific description of the protrusion (330-6) is the same as that described above in the descriptions of FIGS. 45 and 46.

Meanwhile, although not shown in the drawing, the protrusion (330-6) may be changed to the protrusion (330-7 of FIGS. 47 and 48) described above in the description of FIGS. 47 and 48.

Although the present invention has been described above with reference to embodiments thereof, these are merely examples and do not limit the present invention. Those skilled in the art will appreciate that various modifications and applications not exemplified above are possible without departing from the essential characteristics of the embodiments of the present invention. For example, each component specifically shown in the embodiments of the present invention can be modified and implemented. In addition, the differences related to such modifications and applications should be interpreted as being included in the scope of the present invention defined in the appended claims.

Claims (25)

A base portion including a pixel area including a transparent area and a light-shielding area;
A color filter positioned on the transmission area of the above base portion;
A protrusion positioned on the light-shielding area of the base portion and including a first sub-color filter and a second sub-color filter overlapping the first sub-color filter;
A shading member positioned on the protrusion and overlapping the shading area of the base; and
A spacer is included, which is positioned on the above-mentioned shading member and is made of the same material as the above-mentioned shading member and overlaps the above-mentioned protrusion.
The above first sub-color filter includes a first color pigment,
The above second sub-color filter contains a second color pigment different from the above first color pigment,
The first width in the first direction of the first sub-color filter is different from the second width in the first direction of the second sub-color filter,
The third width in the second direction of the first sub-color filter is different from the fourth width in the second direction of the second sub-color filter,
The above second direction is a direction intersecting with the above first direction,
The above color filter contains the same first color pigment as the first sub-color filter,
The above first sub-color filter is a display device connected to the color filter. In the first paragraph,
The above first width is smaller than the above second width,
The above third width is a display device larger than the above fourth width. In the second paragraph,
The maximum width in the first direction of the overlapping area where the first sub-color filter and the second sub-color filter overlap is substantially the same as the first width,
A display device in which the maximum width of the second direction of the above-mentioned overlapping area is substantially the same as the fourth width. In the first paragraph,
The above first width is larger than the above second width,
The above third width is a display device larger than the above fourth width. In paragraph 4,
The maximum width in the first direction of the overlapping area where the first sub-color filter and the second sub-color filter overlap is substantially the same as the second width,
A display device in which the maximum width of the second direction of the above-mentioned overlapping area is substantially the same as the fourth width. delete delete In the first paragraph,
The above second sub-color filter is a display device spaced apart from the above color filter. delete In the first paragraph,
A switching element positioned on the shading area of the base portion and overlapping the protrusion and the spacer; and
Further comprising a passivation layer positioned on the above switching element,
The above-mentioned shading member is positioned on the above-mentioned passivation layer,
A display device in which the above protrusion is located between the passivation layer and the light-shielding member. In Article 10,
The above color filter is located on the passivation layer,
Further comprising a pixel electrode positioned on the color filter and connected to the switching element through a contact hole formed in the passivation layer,
The above protrusion is a display device that does not overlap with the contact hole. In Article 11,
A display device in which the above color filter does not overlap with the above contact hole. In Article 11,
A display device in which the above-mentioned shading member is partially in direct contact with the above-mentioned passivation layer. A base portion including a first pixel area including a first transparent area and a first shading area, and a second pixel area including a second transparent area and a second shading area;
A first color filter positioned on the first transmission area of the above base portion;
A second color filter positioned on the second transmission area of the above base portion;
A protrusion positioned on the first light-shielding area of the base portion and including a first sub-color filter and a second sub-color filter overlapping the first sub-color filter;
A third sub-color filter positioned on the second light-emitting region of the above base portion;
A first shading member positioned on the protrusion and overlapping the first shading area of the base portion, and a second shading member positioned on the third sub-color filter and overlapping the second shading area of the base portion;
A spacer positioned on the first shading member and made of the same material as the first shading member and overlapping the protrusion; and
It includes an auxiliary spacer positioned on the second shading member, made of the same material as the second shading member, and overlapping the third sub-color filter,
The above first sub-color filter includes a first color pigment,
The above second sub-color filter contains a second color pigment different from the above first color pigment,
The first width in the first direction of the first sub-color filter is different from the second width in the first direction of the second sub-color filter,
The third width in the second direction of the first sub-color filter is different from the fourth width in the second direction of the second sub-color filter,
The above second direction is a direction intersecting with the above first direction,
The above first color filter contains the same first color pigment as the above first sub-color filter,
The above first sub-color filter is a display device connected to the above first color filter. In Article 14,
The above spacer is formed integrally with the first light-shielding member,
A display device in which the above auxiliary spacer is formed integrally with the second shading member. In Article 15,
A display device in which the first shading member and the second shading member are made of the same material. In Article 16,
A display device in which the first shading member and the second shading member are formed integrally. In Article 14,
The height of the spacer measured based on one side of the above base portion is
A display device that is higher than the height of the auxiliary spacer measured based on one side of the base portion. In Article 18,
The height of the protrusion measured based on one side of the base portion is
A display device higher than the height of the third sub-color filter measured based on one side of the above base portion. In Article 14,
The above second color filter contains a color pigment different from the above first color pigment,
A display device wherein the third sub-color filter includes a color pigment identical to one of the first color pigment and the second color pigment. In Article 14,
The above second color filter contains a color pigment different from the above first color pigment,
A display device wherein the third sub-color filter includes a third color pigment different from the first color pigment and the second color pigment. delete delete In Article 14,
A first switching element positioned on the first light-shielding area of the base portion and overlapping the protrusion portion and the spacer;
A second switching element positioned on the second light-shielding area of the base portion and overlapping the third sub-color filter and the auxiliary spacer; and
Further comprising a passivation layer positioned on the first switching element and the second switching element,
The above protrusion is located between the passivation layer and the first light-shielding member,
A display device in which the third sub-color filter is positioned between the passivation layer and the second light-shielding member. In Article 24,
The above first shading member is partially in direct contact with the passivation layer,
A display device in which the second shading member is partially in direct contact with the passivation layer.