TWI509321B - Curved display panel - Google Patents

Description

Curved display panel

The present invention relates to a curved display panel, and more particularly to a curved display panel in which a light shielding member extending in the same direction as a bending axis is disposed on an array substrate.

With the continuous improvement of liquid crystal display technology, liquid crystal display panels have been widely used in flat-panel televisions, notebook computers, mobile phones and various types of consumer electronic products. A conventional liquid crystal display panel is formed by sandwiching a liquid crystal material between an active array substrate and a color filter substrate. If the color filter unit of different colors on the color filter substrate and the pixel area on the active array substrate are misaligned, the light leakage and color development abnormalities may occur, so generally, the color filter substrate is used. A black matrix (BM) is set to achieve the shadowing effect, but the setting of the black matrix limits the increase of the aperture ratio of the pixel. Therefore, in order to reduce the influence of the offset ratio between the color filter substrate and the active array substrate on the aperture ratio, the related industry has also developed a structure in which the color filter unit is directly formed on the active array substrate ( Color filter on array (COA) to improve the alignment problem. However, when the COA structure described above is applied to a curved display, the color filter unit on the active array substrate is displaced due to the bending condition, so that problems such as light leakage and color development abnormality are still caused.

One of the main objects of the present invention is to provide a curved display panel. The light shielding element extending in the same direction as the bending axis is disposed on the array substrate, thereby avoiding problems such as light leakage and abnormal color development caused by the curved color filter unit.

In order to achieve the above objective, a preferred embodiment of the present invention provides a curved display panel including an array substrate, a pair of substrates, a display medium, a plurality of color filter units, a plurality of first shading elements, and a plurality of Two shading elements. The opposite substrate system is disposed opposite to the array substrate, and the array substrate and the opposite substrate are bent in a bending direction with a central axis as an axis. The central axis has an extending direction and the extending direction is orthogonal to the bending direction. The display medium is disposed between the array substrate and the opposite substrate. The color filter unit is disposed between the array substrate and the opposite substrate. The first shading element is disposed on the array substrate, and each of the first shading elements extends along a direction in which the central axis extends. The second shading element is disposed on the opposite substrate, and the second shading element and the first shading element are disposed to intersect each other.

101-106‧‧‧Bend display panel

110‧‧‧Array substrate

120‧‧‧ opposite substrate

121‧‧‧Upper electrode

130‧‧‧Display media

140‧‧‧Color Filter Unit

141‧‧‧First color filter unit

142‧‧‧Second color filter unit

143‧‧‧ Third color filter unit

151‧‧‧First shading element

152‧‧‧Second shading element

153‧‧‧ first shade frame

154‧‧‧second shade frame

155‧‧‧Lighting spacers

156‧‧‧ third shade frame

160‧‧‧Box glue

AX‧‧‧ central axis

D1‧‧‧Bending direction

D2‧‧‧ extending direction

D3‧‧ Direction

DL‧‧‧ data line

FIG. 1 is a schematic view showing a curved display panel according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing the opposite substrate of the curved display panel according to the first embodiment of the present invention.

FIG. 3 is a schematic view showing an array substrate of a curved display panel according to a first embodiment of the present invention.

Fig. 4 is a partially enlarged plan view showing the central portion of the curved display panel of the first embodiment of the present invention.

Fig. 5 is a partially enlarged schematic view showing the surrounding area of the curved display panel of the first embodiment of the present invention.

FIG. 6 is a schematic view showing a curved display panel according to a second embodiment of the present invention.

FIG. 7 is a partially enlarged schematic view showing a surrounding area of a curved display panel according to a second embodiment of the present invention.

FIG. 8 is a schematic view showing a curved display panel according to a third embodiment of the present invention.

FIG. 9 is a schematic view showing a curved display panel according to a fourth embodiment of the present invention.

FIG. 10 is a schematic view showing a curved display panel according to a fifth embodiment of the present invention.

11 is a partially enlarged schematic view showing a surrounding area of a curved display panel according to a fifth embodiment of the present invention. Figure.

Figure 12 is a schematic view showing a curved display panel of a sixth embodiment of the present invention.

The present invention will be further understood by those skilled in the art to which the present invention pertains. .

Please refer to Figures 1 to 5. FIG. 1 is a schematic view showing a curved display panel according to a first embodiment of the present invention. FIG. 2 is a schematic view of the opposite substrate of the embodiment. FIG. 3 is a schematic view showing the array substrate of the embodiment. FIG. 4 is a partially enlarged schematic view showing a central portion of the curved display panel of the embodiment. FIG. 5 is a partially enlarged schematic view showing a surrounding area of the curved display panel of the embodiment. For the convenience of description, the drawings of the present invention are only for the purpose of understanding the present invention, and the detailed proportions thereof can be adjusted according to the design requirements. As shown in FIG. 1 , a first embodiment of the present invention provides a curved display panel 101 . The curved display panel 101 includes an array substrate 110 , a pair of substrates 120 , and a display medium 130 . The opposite substrate 120 is disposed opposite to the array substrate 110, and the display medium 130 is disposed between the array substrate 110 and the opposite substrate 120. The array substrate 110 may include an active array substrate or a passive array substrate, and the array substrate 110 may have wires such as data lines, gate lines, common lines and external traces, and control elements (not shown). The control element on the array substrate 110 may include an amorphous silicon thin film transistor (a-Si TFT), a poly silicon thin film transistor (poly-Si TFT), an oxide semiconductor thin film. Oxide semiconductor thin film transistor or other suitable control element. The opposite substrate 120 is preferably a transparent substrate, but is not limited thereto. Display medium 130 can include a liquid crystal material, an organic light emitting material, ink, electronic ink, or other display medium suitable for use with a color filter unit. The curved display panel 101 is bent in a bending direction D1 with a central axis AX as an axis. In other words, the array substrate 110 and the opposite substrate 120 are also in the middle. The mandrel AX is bent in the bending direction D1. The central axis AX has an extending direction D2, and the extending direction D2 is orthogonal to the bending direction D1. In the present embodiment, the opposite substrate 120 is disposed between the central axis AX and the array substrate 110, but the invention is not limited thereto. In other embodiments of the present invention, the array substrate 110 may be disposed between the opposite substrate 120 and the central axis AX as needed. For example, when the side of the opposite substrate 120 is the viewing direction, the curved display panel 101 may exhibit a concave or convex bending condition as needed, thereby achieving the effect of stereoscopic display or increasing the viewing angle, but this is not limit.

As shown in FIGS. 2 to 4 , the curved display panel 101 may further include a plurality of color filter units 140 , a plurality of first light blocking elements 151 , and a plurality of second light blocking elements 152 . The color filter unit 140 is disposed between the array substrate 110 and the opposite substrate 120. In the embodiment, the color filter unit 140 is disposed on the array substrate 110, but the invention is not limited thereto. In other embodiments of the present invention, the color filter unit 140 may also be disposed on the opposite substrate 120 as needed. In this embodiment, the color filter unit 140 may include a first color filter unit 141, a second color filter unit 142, and a third color filter unit 143 arranged alternately. The first color filter unit 141 is disposed. The second color filter unit 142 and the third color filter unit 143 are respectively color filter units of different colors, such as a red color filter unit, a green color filter unit, and a blue color filter unit, but This is limited. The first light blocking element 151 is disposed on the array substrate 110, the second light blocking element 152 is disposed on the opposite substrate 120, and the second light blocking element 152 and the first light blocking element 151 are disposed to intersect each other. In this embodiment, the first shading element 151 and the second shading element 152 may include an anti-shielding element such as a black photoresist, a metal oxide such as chromia oxide or other suitable shading material. The first light-shielding element 151 is preferably insulated from and corresponding to the data line DL in the array substrate 110, and the second light-shielding element 152 is preferably disposed corresponding to the gate line (not shown) in the array substrate 110. The light leakage phenomenon between different pixel regions in the curved display panel 101 is shielded, but is not limited thereto. More specifically, the first light-shielding element 151 can be disposed corresponding to the data line DL in a direction D3 orthogonal to the array substrate 110, but is not limited thereto. Each of the first shading elements 151 of the embodiment is compared with each of the second shading elements 152. Preferably, each of the first light-shielding elements 151 extends along the extending direction D2 of the central axis AX, and each of the second light-shielding elements 152 preferably extends along the bending direction D1, but is not limited thereto. . The first light-shielding element 151 may be parallel to the data line DL, and the first light-shielding element 151 may at least partially overlap the data line DL, but is not limited thereto. In addition, the first color filter unit 141, the second color filter unit 142, and the third color filter unit 143 are preferably respectively extended in the extending direction D2, and the first color filter unit 141. The second color filter unit 142 and the third color filter unit 143 are preferably arranged alternately in the bending direction D1. Each of the first light-shielding elements 151 is disposed corresponding to the intersection of two adjacent color filter units 140. The first light-shielding element 151 and the color filter unit 140 are disposed on the array substrate 110, and at least a portion of the color filter unit is disposed. The 140 series is disposed between the first light blocking element 151 and the array substrate 110. Since each of the first light blocking elements 151 extends along the extending direction D2 of the central axis AX, when the color filter units 140 are bent in the bending direction D1 with the central axis AX as the axis, the first one is also disposed on the array substrate 110. The relative displacement between the light-shielding element 151 and the color filter unit 140 does not occur, so that the first light-shielding element 151 can still have a desired light-shielding effect under the condition of being bent, thereby avoiding problems such as light leakage and color development abnormality. In other words, the curved display panel 101 of the present embodiment can achieve the desired shading effect by not providing other shading elements that do not extend along the extending direction D2 on the array substrate 110. Since the second light shielding element 152 of the embodiment is disposed on the opposite substrate 120 and is not disposed on the array substrate 110, the number of the light shielding elements on the array substrate 110 can be reduced, thereby reducing the light shielding element on the array substrate 110. The effect of process conditions, and thus the effect of improving product yield.

As shown in FIG. 2, FIG. 3, and FIG. 5, the curved display panel 101 of the present embodiment further includes an upper electrode 121, a first light shielding frame 153, and a sealant 160. The upper electrode 121 is disposed on the opposite substrate 120 for forming an electric field between the lower electrode (not shown) disposed on the array substrate 110 to drive the display medium 130, but is not limited thereto. The sealant 160 is disposed between the array substrate 110 and the opposite substrate 120 for bonding the array substrate 110 and the opposite substrate 120. First shading The frame 153 is disposed on the opposite substrate 120. The first light shielding frame 153 is disposed on the edge of the opposite substrate 120, and the first light shielding frame 153 surrounds the second light shielding member 152. The constituent material of the first light-shielding frame 153 may be similar to the constituent material of the second light-shielding member 152 described above, and thus will not be described herein. It is to be noted that the frame glue 160 of the present embodiment is preferably located between the first light-shielding frame 153 and the array substrate 110. Therefore, the first light-shielding frame 153 can be used to cover the frame glue 160 and possibly the frame glue alignment. A mark (not shown) is used to improve the appearance quality of the curved display panel 101.

The different embodiments of the curved display panel of the present invention are described below, and the following description is mainly for the sake of simplification of the description of the embodiments, and the details are not repeated. In addition, the same elements in the embodiments of the present invention are denoted by the same reference numerals to facilitate the comparison between the embodiments.

Please refer to Figure 6 and Figure 7. FIG. 6 is a schematic view showing a curved display panel according to a second embodiment of the present invention. FIG. 7 is a partially enlarged schematic view showing a surrounding area of the curved display panel of the embodiment. As shown in FIG. 6 and FIG. 7 , the curved display panel 102 of the present embodiment is different from the first embodiment in that the curved display panel 102 further includes a second light shielding frame 154 disposed on the array substrate 110 , and The sealant 160 is attached to the second light-shielding frame 154 on the array substrate 110. The constituent material of the second light-shielding frame 154 may be similar to the constituent material of the first light-shielding member 151 described above, but is not limited thereto. The second light shielding frame 154 is disposed between the color filter unit 140 and the sealant 160 to improve the problem of liquid crystal bubbles and the like which may occur when the display medium 130 is a liquid crystal material.

Please refer to Figure 8. FIG. 8 is a schematic view showing a curved display panel according to a third embodiment of the present invention. As shown in FIG. 8 , the curved display panel 103 of the present embodiment is different from the first embodiment in that the curved display panel 103 further includes at least one light shielding spacer 155 disposed on the array substrate 110 and the opposite substrate 120 . To maintain the spacing between the array substrate 110 and the opposite substrate 120. For example, when the display medium 130 is a liquid crystal material, the light shielding spacer 155 can be It is used to maintain the cell gap in the curved display panel 103, but is not limited thereto. In addition, the light shielding spacer 155 of the embodiment may be disposed on the first light shielding member 151, and the light shielding spacer 155 may be integrally formed with the first light shielding member 151 in the same material. That is to say, the light-shielding spacers 155 can be formed together with the first light-shielding member 151 in the same process, thereby achieving the effect of process reduction.

Please refer to Figure 9. FIG. 9 is a schematic view showing a curved display panel according to a fourth embodiment of the present invention. As shown in FIG. 9, the curved display panel 104 of the present embodiment is different from the first embodiment in that the color filter unit 140 of the present embodiment is disposed on the opposite substrate 120, and the second light blocking member 152 is disposed. Preferably, it is disposed between the color filter unit 140 and the opposite substrate 120, and the second light blocking element 152 is disposed between the opposite substrate 120 and the display medium 130, but is not limited thereto.

Please refer to Figure 10 and Figure 11. FIG. 10 is a schematic view showing a curved display panel according to a fifth embodiment of the present invention. 11 is a partially enlarged schematic view showing a surrounding area of the curved display panel of the embodiment. As shown in FIG. 10 and FIG. 11 , the curved display panel 105 of the present embodiment is different from the first embodiment in that the curved display panel 105 includes a third light shielding frame 156 disposed on the edge of the array substrate 110 , and The third light shielding frame 156 surrounds the first light shielding member 151. The constituent material of the third light-shielding frame 156 may be similar to the constituent material of the first light-shielding member 151 described above, but is not limited thereto. The frame glue 160 of the embodiment is disposed between the array substrate 110 and the opposite substrate 120, and the frame glue 160 is located between the third light shielding frame 156 and the opposite substrate 120. Therefore, the third light shielding frame 156 can be used. The frame sealant 160 and the sealant alignment mark (not shown) that may be provided are shielded, thereby improving the appearance quality of the curved display panel 105.

Please refer to Figure 12. Figure 12 is a schematic view showing a curved display panel of a sixth embodiment of the present invention. As shown in FIG. 12, the curved display panel 106 of the present embodiment and the first implementation described above The difference in the example is that the array substrate 110 of the present embodiment is disposed between the opposite substrate 120 and the central axis AX. In other words, when the side of the opposite substrate 120 is the viewing direction, the curved display panel 106 exhibits a convex bending condition, thereby achieving the desired stereoscopic display or increasing the viewing angle, but not Limited.

In summary, the curved display panel of the present invention is provided on the array substrate by using a light shielding member extending in the same direction as the bending axis, and the color filter unit is extended in the axial direction, thereby avoiding the curved color filter. The light unit causes problems such as light leakage and abnormal color development. In addition, the present invention further utilizes other required light-shielding units and light-shielding frames on the opposite substrate to reduce the number of light-shielding elements on the array substrate, thereby reducing the influence of the light-shielding elements on the array substrate on the process conditions, and further Achieve the effect of improving product yield.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

101‧‧‧Bend display panel

110‧‧‧Array substrate

120‧‧‧ opposite substrate

121‧‧‧Upper electrode

130‧‧‧Display media

140‧‧‧Color Filter Unit

141‧‧‧First color filter unit

142‧‧‧Second color filter unit

143‧‧‧ Third color filter unit

151‧‧‧First shading element

AX‧‧‧ central axis

D1‧‧‧Bending direction

D2‧‧‧ extending direction

DL‧‧‧ data line

Claims (12)

A curved display panel includes: an array substrate; a pair of substrates disposed opposite to the array substrate, wherein the array substrate and the opposite substrate are bent in a bending direction with a central axis as an axis, the central axis having An extending direction, wherein the extending direction is orthogonal to the bending direction; a display medium disposed between the array substrate and the opposite substrate; a plurality of color filter units disposed on the array substrate and the opposite substrate a plurality of first light-shielding elements are disposed on the array substrate, wherein each of the first light-shielding elements extends along the extending direction, and each of the first light-shielding elements is adjacent to the two adjacent color filter units Correspondingly disposed at a boundary; and a plurality of second shading elements disposed on the opposite substrate, wherein the second shading elements are disposed to intersect with the first shading elements, and the second shading elements are disposed Between the opposite substrate and the display medium. The curved display panel of claim 1, wherein the color filter units comprise a first color filter unit, a second color filter unit, and a third color filter unit arranged alternately along the bending direction. The curved display panel of claim 2, wherein the first color filter unit, the second color filter unit, and the third color filter unit are respectively elongated strip color filter units extending along the extending direction And each of the first shading elements is a strip-shaped shading element. The curved display panel of claim 1, further comprising a first light shielding frame disposed on the opposite substrate, wherein the first light shielding frame is disposed at an edge of the opposite substrate, and the first light shielding frame is surrounding The second shading elements. The curved display panel of claim 4, further comprising a sealant disposed between the array substrate and the opposite substrate, wherein the sealant is entirely located between the first shade frame and the array substrate. The curved display panel of claim 5, further comprising a second light shielding frame disposed on the array substrate, wherein the sealant is attached to the array substrate to surround the second light shielding frame. The curved display panel of claim 1, further comprising at least one light shielding spacer disposed between the array substrate and the opposite substrate, wherein the light shielding spacer is disposed on the first light shielding element. The curved display panel of claim 1, wherein the color filter units are disposed on the array substrate, and at least a portion of the color filter units are disposed on the first light shielding element and the array substrate between. The curved display panel of claim 1, wherein the color filter units are disposed on the opposite substrate. The curved display panel of claim 1, wherein each of the first shading elements is an insulating shading element. The curved display panel of claim 1, further comprising a third light shielding frame disposed at an edge of the array substrate, wherein the third light shielding frame surrounds the first light shielding elements. The curved display panel of claim 11, further comprising a frame glue disposed between the array substrate and the opposite substrate, wherein the frame glue is entirely located between the third light shielding frame and the opposite substrate.