TWI782489B - Display device - Google Patents

Abstract

A display device including a display panel, a frame, and a backlight module. The display panel includes a round end edge, and the frame supports the round end edge. In addition, the backlight module includes a plurality of light bars, wherein the plurality of light bars are distributed along the round end edge, and each contain an obtuse angle that corresponding to the radian of the round end edge.

Description

display device

The invention relates to a display device. Specifically, the present invention relates to a display module with a plurality of strip light sources.

In order to achieve a circular display effect, two circular acrylic or advertising boards can be used as the shell, and a light tube is placed between the two pieces to produce the effect of a light box. In addition, a mask can also be added outside the rectangular display device to leave a circular part in the middle, thereby producing a circular display effect. However, the former is more suitable for the display of fixed images such as signboards and signs because the displayed graphics are limited by the pre-specified acrylic board. Although the latter can perform the function of the display device, the use of the mask will increase the width of the frame of the display device, which is not conducive to the development of a display device with a narrow frame.

An object of the present invention is to provide a display device that can reduce the width of the frame of the display device when using a display panel with an arc-shaped edge (eg, circular).

One object of the present invention is to provide a display device capable of adjusting the incident light quantity of the backlight module.

In one embodiment, the display device includes: a display panel with an arc-shaped edge; a frame carrying the arc-shaped edge; and a backlight module including a plurality of strip-shaped light sources, wherein the strip-shaped light sources are arranged along the arc Shaped edges are distributed, and each other forms an obtuse angle corresponding to the arc of the arc-shaped edges.

In another embodiment, the display device includes: a display panel with an arc-shaped edge; a frame carrying the arc-shaped edge; and a backlight module, which includes: a housing with a plurality of connected sides, Wherein the side edges jointly surround the arc-shaped edge; and a plurality of strip-shaped light sources are respectively arranged on at least part of the side edges and extend along the at least part of the side edges.

According to the display device provided by each embodiment of the present invention, the incident light quantity of the backlight module can be adjusted by changing the number of strip light sources. In addition, the plurality of sides of the casing are connected to each other at a specific angle close to the arc of the arc-shaped edge, so as to surround the arc-shaped edge, so that the shape of the casing can be close to the display panel, thereby reducing the display The width of the border of the device.

Various embodiments will be described below, and those skilled in the art can easily understand the spirit and principle of the present invention by referring to the description and accompanying drawings. However, while some specific embodiments will be described in detail, these embodiments are illustrative only and are not to be considered restrictive or exhaustive in all respects. Therefore, for those skilled in the art, without departing from the spirit and principles of the present invention, various changes and modifications to the present invention should be obvious and can be easily achieved.

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals refer to the same elements. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" means that other elements exist between two elements.

It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, and/or or parts thereof shall not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "first component," "first region," "first layer" or "first section" discussed below could be termed a second element, component, region, layer or section and not Get out of the teaching of this article.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include plural forms including "at least one" unless the content clearly dictates otherwise. "Or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It should also be understood that when used in this specification, the terms "comprising" and/or "comprising" designate the presence or addition of said features, regions, integers, steps, operations, elements and/or components, but do not exclude one or Presence or addition of multiple other features, regions, integers, steps, operations, elements, parts and/or combinations thereof.

Exemplary embodiments are described herein with reference to cross section illustrations that are schematic illustrations of idealized embodiments. Accordingly, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances are to be expected. Thus, embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region shown or described as flat, may, typically, have rough and/or non-linear features. Additionally, acute corners shown may be rounded. Thus, the regions shown in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of regions and are not intended to limit the scope of the claims.

FIG. 1 is a top plan view of an embodiment of a display device. Although Fig. 1 shows a display device 10 in a circle, the present invention is not limited thereto, and the various embodiments of the present invention can be applied to different edges of different display devices without conflicting with the technology described in the present invention (such as ellipse, irregular shape with arc edge or semi-circle and semi-rectangular display device, etc.). In addition, the A-A' section and the BB' section line shown in Figure 1 are only schematic in nature and do not represent their absolute or relative positions on the display device, and are not intended to limit this aspect. The components of the various embodiments of the invention are located at the edge.

A display device according to an embodiment of the present invention will be described below with reference to FIG. 2 . FIG. 2 is a schematic diagram of a disassembled display device. The display device includes a display panel 100 having an arc-shaped edge 110 , a frame body 200 carrying the arc-shaped edge 110 , and a backlight module 300 . In this embodiment, the backlight module 300 includes: various optical elements H (such as diffusers, brightening sheets, etc.); a polygonal light guide plate 350 with a plurality of light incident ends 353; a housing 320; A plurality of strip light sources 310 . In order to clearly and concisely describe the technical features of the present invention, all the optical elements H will not be described in detail in the description, and the specific content of the optical elements H can be increased, decreased or omitted as required, and the present invention is not limited thereto.

As shown in FIG. 2 and FIG. 3 , at least part of the edge of the circular display panel 100 is an arc-shaped edge 110 , that is, a non-linear edge. The frame body 200 is at least partially disposed on the back side of the display panel 100 , that is, one side of the non-display surface, and may partially surround the arc-shaped edge 110 . Specifically, the frame body 200 has an end edge 210 corresponding to the arc-shaped edge 110, and the arc of the end edge 210 can be the same as the arc-shaped edge 110, so that the frame body 200 can more closely carry the display panel 100 on the on the backlight module 300 .

The casing 320 further includes a polygonal back plate 321 having a plurality of sides 322 and a plurality of back plate side walls 324 extending upright from the sides 322 . In this embodiment, the plurality of sides 322 of the polygonal backboard 321 are connected with each other at a specific angle close to the arc of the arc-shaped edge 110. The larger the angle between adjacent sides, the closer the plurality of sides 322 can be to the curvature of the arc-shaped edge 110 (that is, the closer the polygonal backplane 321 is to the circular display panel 100). In this manner, the plurality of sides 322 of the polygonal back plate 321 can surround the arc-shaped edge 110 together, so that the shape of the casing 320 can be close to the display panel 100 . When the shape of the housing 320 is closer to the display panel 100 , the area of the housing 320 beyond the edge of the display panel 100 on the virtual plane parallel to the display surface is reduced, thereby reducing the width of the frame of the display device.

Continuing to explain, the plurality of backplane sidewalls 324 of the casing 320 are arranged around the polygonal backplane 321 (that is, the shape surrounded by the backplane sidewall is the polygon of the polygonal backplane 321), and these sides of the polygonal backplane 321 322 extends toward the display panel 100 after being connected. The side wall 324 of the back panel and the side edge 322 can be connected in an integrated manner, or can be connected in a manner of rejoining separate components. In this way, the backplane sidewalls 324 and the polygonal backplane 321 can jointly accommodate, for example, the polygonal light guide plate 350 and other optical elements H and the like. In addition, the strip light sources 310 of the backlight module 300 can be respectively attached to a part of the sidewall 324 of the backplane. By changing the number of these strip light sources 310 (for example, they can be attached to all the backplane sidewalls 324 or attached with a backplane sidewall 324 apart from each other), the incident light amount of the backlight module 300 can be adjusted.

A display device according to an embodiment of the present invention will be described below with reference to FIG. 3 .

As shown in FIG. 3 , the frame body 200 also includes a supporting portion 230 and a frame wall 250. The supporting portion 230 can be parallel to the display panel 100 and upward from the back side of the display panel 100 (that is, toward the display panel 100 as shown in FIG. 3 ). direction) carries the display panel 100 , and is connected downwardly to the backplane side wall 324 of the casing 320 . Wherein, the optical element H and the polygonal light guide plate 350 contained by the polygonal backplane 321 and all the sidewalls 324 of the backplane are disposed under the supporting portion 230 . The frame wall 250 can vertically connect the end edge of the support portion 230 away from the center of the display panel 100 (for example, in this embodiment, the cross section of the frame wall 250 and the support portion 230 presents a “T” character), and along the backlight module 300 It is disposed on the outside and has an end edge 210 . The end edge 210 corresponds to the arc-shaped end edge 110 (for example, has the same or similar radian, or the same or similar distance between them can be maintained), that is, the shape formed by the frame wall 250 surrounding the backlight module 300 can be similar to that of the display panel 100 The same (that is, circular in this embodiment), rather than the polygon formed by the polygonal back plate 321, but not limited thereto.

In addition, the backplane sidewall 324 may further include a protrusion 327, the protrusion 327 connects the end edge of the backplane sidewall 324 body away from the polygonal backplane 321, and faces away from the backlight module 300 and is parallel to the support. The direction of the portion 230 protrudes to form a ring around the body of the side wall 324 of the backplane. The protruding portion 327 can substantially adhere to a side of the supporting portion 230 opposite to the display panel 100 , and can be combined with the supporting portion 230 by using, for example, screws R.

It should be noted that the strip light source 310 is attached to the side wall 324 of the back plate in FIG. They are selectively attached to a part of the side wall 324 of the back plate, for example, can be arranged at intervals to adjust the amount of incident light.

A display device 20 according to another embodiment of the present invention will be described below with reference to FIG. 4 .

The display device 20 may have components and configurations similar to those of the display device 10 shown in FIGS. 2 and 3 . It is characterized in that the housing 320 of the display device may not include a backplane sidewall 324 but include a heat dissipation element 330 . The heat dissipation element 330 is formed as a closed or semi-closed annular structure, including a connecting plate 332 and a plurality of heat dissipation sidewalls 334 . The connecting plate 332 can be connected to the bottom surface of the polygonal backplane 321 (ie, the surface facing away from the inner side of the backlight module 300 ), and extends away from the center of the polygonal backplane 321 . The heat dissipation sidewall 334 can be vertically connected to the end edge of the connecting plate 332 away from the center of the polygonal backplane 321 (ie, the end edge is not connected to an end of the polygonal backplane 321 ), and extends toward the display panel 100 . The heat dissipation sidewall 334 may further include a protruding portion 337 connected to the end edge of the heat dissipation sidewall 334 away from the connecting plate 332 , and protruding toward a direction away from the backlight module and parallel to the supporting portion 230 . The protruding portion 337 can be combined with the supporting portion 230 by using, for example, a screw R. As shown in FIG.

In addition, the plurality of strip light sources 310 can be selectively or comprehensively attached to the heat dissipation side walls 334 as they are attached to the back panel side walls 324 of the display device. In this way, the heat generated on the strip light source 310 can be conducted outward through the heat dissipation sidewall 334 to achieve the effect of heat dissipation.

FIG. 5 is a schematic diagram illustrating the light entering of the polygonal light guide plate 350 of the display device 10 according to an embodiment of the present invention, which captures the housing 320, the strip light source 310 and the polygonal light guide plate 350 in the interval of FIG. 1A-A' configuration. The polygonal shape of the polygonal light guide plate 350 can be the same as that of the polygonal backplane 321 (for example, both are 16-sided but smaller in size), and it can be arranged inside the sidewalls 324 of the backplane in a side-by-side manner, for example, each of the polygonal lightguide plate 350 The edges are respectively parallel to the sidewalls 324 of the backplane. The polygonal light guide plate 350 also has a plurality of light incident ends 353 corresponding to the strip light sources 310 , and the light incident ends 353 are located at side edges of the polygonal light guide plate 350 . Referring to FIG. 5, since each edge of the polygonal light guide plate 350 is parallel to each backplane side wall 324, the light incident end 353 can face the strip light source 310, so that the light from the strip light source 310 (shown by an arrow in FIG. 5 ) can pass from The light incident end 353 enters the polygonal light guide plate 350 .

A display device according to yet another embodiment of the present invention will be described below with reference to FIGS. 6 and 7 .

In this embodiment, the display device may have a configuration and structure similar to that of the display device in the foregoing embodiments. In addition, the display panel 100 further includes a connection line 130, one end of the connection line 130 is connected to the circuit on the display panel 100 and then extends away from the center of the display panel 100, and is connected to the electronic component 700 on the back side of the backlight module 300 after being folded back. (such as printed circuit boards). A notch 270 (shown in FIG. 7 ) is formed on the frame wall 250 corresponding to the connection circuit 130 , and a tangent edge 235 is formed on the support portion 230 corresponding to the notch 270 to face the connection circuit 130 . The tangent edge 235 preferably means that the edge of the portion extends in a straight line. Referring to FIG. 6 , the connecting circuit 130 is folded downward toward the backside of the backlight module 300 (that is, the side away from the display panel 100 ) at the tangent edge 235 , and connected to the electronic components on the backside of the backlight module 300 after reflexion. 700 (e.g. printed circuit boards).

Referring to FIG. 7 , it can be further seen that the connection line 130 of the display device of this embodiment passes through the gap 270 of the frame wall 250 , passes through the outside of the edge 235 of the tangent line, and is folded on the back side of the backlight module 300 . That is to say, the notch 270 and the tangent edge 236 together form a groove on the frame body 200 to accommodate at least part of the connecting circuit 130, so that the connecting circuit 130 is connected to the display panel 100 and the electronic component 700 (such as a printed circuit board) without It will destroy the overall shape of the frame body 200 (that is, it will not exceed the circular range of the frame body 200 in this embodiment).

It should be noted that, in order to express the technical characteristics of the present invention concisely, FIG. 7 only shows that the tangent line edge 236 corresponds to a connection line 130, but the present invention is not limited to the number of tangent line end edges and connection lines, for example, the tangent line end edge 236 can correspond to the connection lines other than the connection line 130 at the same time, and the frame body 200 can also form the tangent line edge outside the tangent line edge 236 to accommodate other connection lines. In addition, the printed circuit board is only an example of the electronic component 700 connected to the connection line 130, and the present invention is not limited thereto.

A display device according to another embodiment of the present invention is described with reference to FIG. 8 . The display device may have elements and configurations similar to those of the display device embodiments shown in FIGS. 6 and 7 . The display device includes two sets of display panels 100 connected to each other on the back side, wherein the electronic components 700 (such as printed circuit boards) connected by the connecting lines 130 of the two sets of display panels 100 are arranged in a staggered manner, that is, each electronic component 700 The projections between the two display panels 100 on a virtual plane parallel to the display panels do not overlap. With this arrangement, the various electronic components 700 can be distributed side by side, so the thickness will not overlap, and the effect of reducing the overall thickness of the system can be achieved.

One of the purposes of the present invention is to reduce the width of the frame of the display device. By changing the number of sides of the polygon of the backlight module 300 in the present invention (such as the polygonal backplane 321, the polygonal light guide plate 350, etc.), the width of the frame can be adjusted. Then realize the appropriate frame width according to the requirement. This concept will be described below with reference to FIG. 9 and FIG. 10 . In order to present the concept clearly, FIG. 9 and FIG. 10 are simplified schematic diagrams. The radius of the display panel 100 is r _n , and the radius of the circumscribed circle of the backlight module 300 is R _n , so the required border width of the display device 10 is at least R _n − r _n . Comparing Figure 9 and Figure 10, it can be found that when the polygon has more sides, the closer the polygon is to a circle, the narrower the required border width (R _n - r _n ) is.

）。 Specifically, assuming that the number of sides of the polygon is n, the radius r _n of the display panel 100 is 600 mm, and it is desired to make the corresponding frame width less than or equal to 30 mm (that is, the corresponding circumcircle radius R _n is less than or equal to 630 mm), then the polygon The number of sides needs to be greater than that of the decagon (

).

Continuing from the above, considering the symmetry of polygons, the backlight module 300 of the display device according to various embodiments of the present invention can be a polygon whose sides are a multiple of four, such as dodecagon, hexagon or two Decagon etc. However, the number of sides of the polygon of the aforementioned backlight module 300 (for example, the polygonal backplane 321 , the polygonal light guide plate 350 , etc.) is only for illustrating possible embodiments of the present invention, and is not intended to limit the number of sides of the polygon of the backlight module 300 .

The display devices of the various embodiments of the present invention can be configured with various supports, for example, they can be table-top or hanging. In the case of double-sided display panels, the display panels can also be connected by an axis, so that the double-sided display panels can be opened and closed, and the flexibility of maintenance can be retained. The above configurations are only examples of embodiments of the present invention, and all configurations that do not deviate from the concept of the technology of the present invention shall fall within the patent scope of the present invention.

10...display device 100…display panel 110...Curved edge 130...connection line 200…frame 210…Edge 230…Supporting Department 235...Tangent edge 250…frame wall 270…Notches 300…Backlight module 310…strip light source 320…shell 321…Backplane 322…side 324...Back side wall 327...Protrusion 330…radiating element 332...connecting plate 334…radiating side wall 337...Protruding part 350…Light guide plate 353…Enter light end 700…electronic components H…Optical elements R...Screw

FIG. 1 is a schematic plan view of a display device according to some embodiments of the present invention.

FIG. 2 is an exploded schematic diagram of a display device according to some embodiments of the present invention.

Fig. 3 is a cross-sectional side view of the display device taken along the section line B-B' of Fig. 1 according to an embodiment of the present invention.

4 is a cross-sectional side view of a display device taken along the section line B-B' of FIG. 1 according to another embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating the incident light of the light guide plate according to an embodiment of the present invention taken from the section of Fig. 1A-A'

Fig. 6 is a cross-sectional side view of a display device taken along the section line B-B' of Fig. 1 according to yet another embodiment of the present invention.

FIG. 7 is a schematic diagram of a display device that captures the region of FIG. 1A-A' including connecting lines, gaps and tangent edges according to an embodiment of the present invention.

Figure 8 is a schematic diagram illustrating that the folded parts of the connecting lines do not overlap with each other between the front and back display panels

9 is a simplified schematic diagram illustrating the relationship between the frame thickness of a display device and the number of sides of a polygon.

FIG. 10 is a simplified schematic diagram illustrating the relationship between the frame thickness of a display device and the number of sides of a polygon.

100…display panel 110...Curved edge 200…frame 210…Edge 300…Backlight module 310…strip light source 320…shell 321…Backplane 322…side 324...Back side wall 350…Light guide plate 353…Enter light end H…Optical elements

Claims (7)

A display device, including: a display panel, including an arc-shaped edge; a frame body, carrying the arc-shaped edge; and a backlight module, including: a housing, including: a polygonal backplane, with a plurality of The adjacent side edges jointly surround the arc-shaped edge; and a plurality of side walls of the back plate respectively extend from the side edges toward the display panel; and a plurality of strip light sources are respectively attached to at least part of the side walls of the back plate , and extend along at least part of the sides respectively. The display device as described in claim 1, wherein the casing comprises: a polygonal backplane, the polygonal backplane has the sides; and a plurality of heat dissipation elements, respectively arranged corresponding to the sides, each heat dissipation element has : a connecting plate, connected with the back plate, and extending out of the corresponding side; and a plurality of heat dissipation side walls, extending from the end edge of the connecting plate toward the display panel, and the strip light sources are respectively attached to the At least part of the heat dissipation sidewall. The display device according to claim 1, wherein the backlight module further includes a polygonal light guide plate, and the polygonal light guide plate has a plurality of light incident ends facing the strip light sources respectively. The display device according to claim 1, wherein the frame body includes: a support portion carrying the display panel and disposed on the backlight module; and a frame wall connecting the support portion away from the display panel edge of the center, and along the backlight module Perimeter setting. The display device as described in claim 4, wherein the display panel includes a connection line, and a gap is formed on the frame wall at a position corresponding to the connection line, and the connection line passes through the gap and is at least partially reflected on the backlight module the back side. The display device according to claim 5, wherein the corresponding position of the supporting part and the notch forms a tangent line whose edge is opposite to the connecting line. The display device as described in claim 5, further has a reverse side display panel, which has a reverse side connection line; wherein the display panel and the reverse side display panel are respectively connected to each other on the back side, and the connection line is at least partially folded to The backside of the backlight module is connected to an electronic component, and the reverse-side connection circuit is at least partially folded to the backside of the reverse-side display panel and connected to a reverse-side electronic component; on a virtual plane parallel to the display panel , the projection ranges of the electronic component and the electronic component on the opposite side do not overlap.

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