A display panel

Abstract

This invention relates to a display panel. In this invention, the conductive wires located within the infrared transmittance area are situated outside the aperture area. This improves the light transmittance of the aperture area, enhancing the infrared communication performance of the display panel. It avoids the problem in existing technologies where conductive wires obstruct the aperture area, leading to reduced light transmittance and failure to meet standards, resulting in poor infrared communication performance of the display panel. Furthermore, the black matrix layer of this invention has at least one through-hole located within the aperture area. This further enhances the light transmittance of the aperture area, improving the infrared communication performance of the display panel and avoiding the problem in existing technologies where the black matrix layer obstructs the aperture area, leading to reduced light transmittance and failure to meet standards, resulting in poor infrared communication performance of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel. Background Technology

[0002] Organic Light Emitting Diode (OLED) is a photoelectric technology that uses organic semiconductor materials to generate reversible color changes under the drive of an electric current to achieve multi-color displays. OLED has advantages such as being thin and light, having high brightness, being self-emissive, having low power consumption, a wide viewing angle, fast response, flexibility, a wide operating temperature range, low voltage requirements, high energy efficiency, fast response, simple structure, low cost, and almost infinite contrast ratio. It is considered to be the most promising next-generation display technology.

[0003] In OLEDs, polarizer removal technology replaces the polarizer with a color filter (CF) and a black matrix (BM), which can improve the light output of the OLED and reduce its power consumption and thickness, and is therefore widely used.

[0004] With the application of POL less technology in OLEDs, the touch grid formed by the conductors of the depolarized display panel and the BM block the infrared light transmission area, resulting in a decrease in the light transmittance of the infrared light transmission area, which cannot meet the standard, resulting in poor infrared communication performance of OLEDs. Summary of the Invention

[0005] The purpose of this invention is to provide a display panel that can solve the problems in the prior art, such as the touch grid and BM blocking the infrared light transmission area, resulting in reduced light transmittance of the infrared light transmission area, failure to meet the standard, and poor infrared communication performance of OLED.

[0006] To address the aforementioned problems, the present invention provides a display panel comprising: a display area; the display area having at least one infrared-transmitting area, the infrared-transmitting area having at least one opening area; the display panel comprising: a substrate; a touch layer disposed on the substrate, the touch layer including touch electrodes; the touch electrodes including a touch grid formed by conductive wires; and a black matrix layer disposed on the side of the touch layer away from the substrate, the black matrix layer having through holes; the through holes being located within the opening area; wherein the conductive wires located within the infrared-transmitting area are located outside the opening area.

[0007] Furthermore, the display panel further includes: a light-emitting layer disposed between the substrate and the touch layer, which includes a plurality of spaced sub-pixels; the sub-pixels include: a first sub-pixel, a second sub-pixel, and a third sub-pixel; the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel; the first sub-pixel, the second sub-pixel, and the third sub-pixel are all centrally symmetrical shapes.

[0008] Furthermore, the conductor includes: a first conductor, a second conductor, a third conductor, and a fourth conductor; each first conductor surrounds a first sub-pixel, each second conductor surrounds a second sub-pixel, each third conductor surrounds a third sub-pixel, and each fourth conductor surrounds a third sub-pixel; the fourth conductor located within the infrared light-transmitting area also surrounds two through holes arranged along a first direction; wherein, the fourth conductor is staggered with the third conductor in the first direction; the fourth conductor is staggered with the third conductor in a second direction perpendicular to the first direction.

[0009] Furthermore, the two through holes located within the shape formed by the fourth conductor are respectively located on both sides of the third sub-pixel.

[0010] Furthermore, the shape enclosed by the third conductor is a centrally symmetrical hexagon; the shapes enclosed by the fourth conductor are all centrally symmetrical figures; the shapes enclosed by the fourth conductor include: a first virtual rectangle and a second virtual rectangle symmetrically arranged about the second direction, and a first virtual isosceles trapezoid and a second virtual isosceles trapezoid symmetrically arranged about the second direction, wherein the upper base of the first virtual isosceles trapezoid coincides with one side of the first virtual rectangle.

[0011] Furthermore, the center of the shape formed by the third conductor coincides with the center of the third sub-pixel it surrounds; the center of the shape formed by the fourth conductor coincides with the center of the third sub-pixel it surrounds.

[0012] Furthermore, the two vias surrounded by each of the fourth conductors are symmetrical about the center of the third sub-pixel they surround.

[0013] Furthermore, in the first direction, the minimum distance between the third sub-pixel within the shape formed by any of the fourth conductors and the via within it is the first distance; the minimum distance between the third sub-pixel within the shape formed by any of the third conductors and the via is the second distance, and the first distance is less than the second distance.

[0014] Furthermore, the projection of the through hole onto the substrate completely coincides with the opening area.

[0015] Furthermore, the shape of the projection of the through hole onto the substrate includes one or more of the following: circular, elliptical, and rectangular.

[0016] The advantages of this invention are: the conductor located in the infrared light-transmitting area is located outside the opening area, thereby avoiding the conductor from blocking the opening area, improving the light transmittance of the opening area in the infrared light-transmitting area, improving the infrared communication performance of the display panel, and avoiding the problem in the prior art where the touch grid blocks the opening area, resulting in a decrease in the light transmittance of the opening area, failing to meet the standard, and causing poor infrared communication performance of the display panel.

[0017] The black matrix layer of the present invention has at least one through hole located within the opening area, thereby improving the light transmittance of the opening area and enhancing the infrared communication performance of the display panel. This avoids the problem in the prior art where the black matrix layer blocks the opening area, resulting in reduced light transmittance of the opening area, failing to meet the standard, and causing poor infrared communication performance of the display panel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a plan view of the display panel of the present invention;

[0020] Figure 2 This is a schematic diagram of the display panel structure of the present invention;

[0021] Figure 3 This is a planar schematic diagram of the touch layer of the present invention;

[0022] Figure 4 It is Example 1 Figure 3 A magnified schematic diagram of the red light transmission area;

[0023] Figure 5 This is an enlarged schematic diagram of the first conductor;

[0024] Figure 6 This is an enlarged schematic diagram of the second conductor;

[0025] Figure 7 This is an enlarged schematic diagram of the third conductor;

[0026] Figure 8 This is an enlarged schematic diagram of the fourth conductor;

[0027] Figure 9It is Example 2 Figure 3 A magnified schematic diagram of the red light transmission area;

[0028] Figure 10 It is Example 3 Figure 3 A magnified schematic diagram of the red light transmission area.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Display panel; 101. Display area;

[0031] 102. Non-display area; 1011. Infrared light-transmitting area;

[0032] 10111, Opening area;

[0033] 1. Substrate; 2. Thin-film transistor layer;

[0034] 3. Light-emitting layer; 4. Encapsulation layer;

[0035] 5. Touch layer; 6. Black matrix layer;

[0036] 7. Color filter; 8. Protective layer;

[0037] 31. First sub-pixel; 32. Second sub-pixel;

[0038] 33. Third sub-pixel;

[0039] 51. Touch unit; 511. First touch electrode;

[0040] 512. Second touch electrode; 513. Wire;

[0041] 5131, First conductor; 5132, Second conductor;

[0042] 5133, Third conductor; 5134, Fourth conductor;

[0043] 51341, First virtual rectangle; 51342, Second virtual rectangle;

[0044] 51343, First virtual isosceles trapezoid; 51344, Second virtual isosceles trapezoid;

[0045] 61. Through hole. Detailed Implementation

[0046] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings to fully introduce the technical content of the present invention to those skilled in the art, and to demonstrate that the present invention can be implemented, making the disclosed technical content of the present invention clearer and enabling those skilled in the art to more easily understand how to implement the present invention. However, the present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein. The following description of the embodiments is not intended to limit the scope of the present invention.

[0047] The directional terms used in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", and "side", are only for the directions shown in the accompanying drawings. The directional terms used herein are for the purpose of explaining and illustrating this invention, and not for limiting the scope of protection of this invention.

[0048] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. Furthermore, for ease of understanding and description, the dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component.

[0049] Example 1

[0050] like Figure 1 As shown, this embodiment provides a display panel 100. The display panel 100 includes a display area 101 and a non-display area 102 surrounding the display area 101. The display area 101 has at least one infrared light-transmitting area 1011, and the infrared light-transmitting area 1011 has at least one opening area 10111.

[0051] like Figure 2 As shown, the display panel 100 includes: a substrate 1, a thin film transistor layer 2, a light-emitting layer 3, an encapsulation layer 4, a touch layer 5, a black matrix layer 6, a color filter 7, and a protective layer 8.

[0052] The substrate 1 is made of one or more of glass, polyimide, polycarbonate, polyethylene terephthalate, and polyethylene naphthalate, which gives the substrate 1 good impact resistance and can effectively protect the display panel 100.

[0053] The thin-film transistor layer 2 is disposed on the substrate 1. The thin-film transistor layer 2 includes a gate, a gate insulating layer, an active layer, and source / drain layers.

[0054] like Figure 2 , Figure 3As shown, the light-emitting layer 3 is disposed on the side of the thin-film transistor layer 2 away from the substrate 1. The light-emitting layer 3 includes a plurality of spaced sub-pixels. The sub-pixels include: a first sub-pixel 31, a second sub-pixel 32, and a third sub-pixel 33; the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 are respectively one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel. In this embodiment, the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 are respectively a red sub-pixel, a blue sub-pixel, and a green sub-pixel. The first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33 are all centrally symmetrical patterns.

[0055] The encapsulation layer 4 is disposed on the side of the light-emitting layer 3 away from the substrate 1. The encapsulation layer 4 is mainly used to prevent water and oxygen from entering the light-emitting layer 3, thereby improving the service life of the display panel 100.

[0056] The touch layer 5 is disposed on the side of the encapsulation layer 4 away from the substrate 1.

[0057] like Figure 2 As shown, the black matrix layer 6 is disposed on the side of the touch layer 5 away from the substrate 1.

[0058] like Figure 2 , Figure 4 As shown, the black matrix layer 6 is located between adjacent sub-pixels, thereby preventing the black matrix layer 6 from occluding the sub-pixels and also preventing crosstalk between the light emitted by adjacent sub-pixels.

[0059] like Figure 4 As shown, the black matrix layer 6 has at least one through-hole 61. The through-hole 61 is located within the opening area 10111; in this embodiment, the projection of the through-hole 61 onto the substrate 1 completely coincides with the opening area 10111. The shape of the projection of the through-hole 61 onto the substrate 1 is circular. This can improve the light transmittance of the opening area, enhance the infrared communication performance of the display panel, and avoid the problem in the prior art where the black matrix layer blocks the opening area, resulting in reduced light transmittance of the opening area, failing to meet the standard, and causing poor infrared communication performance of the display panel.

[0060] like Figure 3 As shown, the touch layer 5 includes a plurality of touch units 51 arranged in an array. Each touch unit 51 includes a touch electrode. In this embodiment, the touch electrode includes two first touch electrodes 511 that are electrically connected to each other and arranged along a first direction X, and two second touch electrodes 512 that are electrically connected to each other and arranged along a second direction Y perpendicular to the first direction X.

[0061] like Figure 4As shown, both the first touch electrode 511 and the second touch electrode 512 include a touch grid formed by conductive wires 513. The conductive wires 513 located within the infrared light-transmitting area 1011 are located outside the opening area 10111. This avoids the conductive wires 513 obstructing the opening area, improving the light transmittance of the opening area 10111, and enhancing the infrared communication performance of the display panel 100. It avoids the problem in the prior art where the touch grid obstructs the opening area 10111, leading to reduced light transmittance and failure to meet standards, resulting in poor infrared communication performance of the display panel 100.

[0062] like Figure 4 As shown, the wire 513 includes: a first wire 5131, a second wire 5132, a third wire 5133, and a fourth wire 5134. In this embodiment, the wire 513 of the touch electrode in one touch unit 51 where the infrared light-transmitting area 1011 is located includes: a first wire 5131, a second wire 5132, a third wire 5133, and a fourth wire 5134. Since the wires 513 of other touch units 51 do not block the infrared light-transmitting area, the wires 513 of the touch electrodes of other touch units 51 may only include: a first wire 5131, a second wire 5132, and a third wire 5133.

[0063] like Figure 4 As shown, each first wire 5131 surrounds a first sub-pixel 31, each second wire 5132 surrounds a second sub-pixel 32, each third wire 5133 surrounds a third sub-pixel 33, and each fourth wire 5134 surrounds a third sub-pixel 33.

[0064] like Figure 4 As shown, the fourth conductor 5134 located in the infrared light-transmitting area 1011 also surrounds two through holes 61 arranged along the first direction X; the two through holes 61 located within the shape formed by the fourth conductor 5134 are respectively located on both sides of the third sub-pixel 33.

[0065] The fourth conductor 5134 is staggered with the third conductor 5133 in the first direction X; the fourth conductor 5134 is staggered with the third conductor 5133 in the second direction Y.

[0066] like Figure 5 As shown, the shape formed by the first conductor 5131 is a centrally symmetrical octagon, and the center of the shape formed by the first conductor coincides with the center of the first sub-pixel 31 it surrounds.

[0067] like Figure 6As shown, the shape enclosed by the second conductor 5132 is a centrally symmetrical octagon, and the center of the shape enclosed by the second conductor 5132 coincides with the center of the second sub-pixel 32 it surrounds.

[0068] like Figure 7 As shown, the shape formed by the third conductor 5133 is a centrally symmetrical hexagon, and the center of the shape formed by the third conductor 5133 coincides with the center of the third sub-pixel 33 it surrounds.

[0069] like Figure 8 As shown, the shapes enclosed by the fourth guide wire 5134 are all centrally symmetrical. The shapes enclosed by the fourth guide wire 5134 include: a first virtual rectangle 51341 and a second virtual rectangle 51342 symmetrically arranged about the second direction Y, and a first virtual isosceles trapezoid 51343 and a second virtual isosceles trapezoid 51344 symmetrically arranged about the second direction Y. The upper base of the first virtual isosceles trapezoid 51343 coincides with one side of the first virtual rectangle 51341. The center of the shapes enclosed by the fourth guide wire 5134 coincides with the center of the third sub-pixel 33 it encloses, thereby improving color cast and reducing mura.

[0070] like Figure 4 As shown, the two vias 61 surrounded by each of the fourth conductors 5134 are symmetrical about the center of the third sub-pixel 33 they surround.

[0071] like Figure 4 As shown, in the first direction X, the minimum distance between the third sub-pixel 33 within the shape formed by any of the fourth conductors 5134 and the via 61 within it is the first distance a. The minimum distance between the third sub-pixel 33 within the shape formed by any of the third conductors 5133 and the via 61 is the second distance b. The first distance a is less than the second distance b, which can improve color cast and reduce mura phenomenon.

[0072] Example 2

[0073] like Figure 9 As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the projection shape of the through hole 61 on the substrate 1 is elliptical. In this embodiment, only in the first direction, the wires 513 of the touch electrodes in the touch unit 51 where the infrared light-transmitting area 1011 is located in the row, or in the second direction, where the infrared light-transmitting area 1011 is located in the column, include: a first wire 5131, a second wire 5132, a third wire 5133, and a fourth wire 5134.

[0074] The conductor 513, located within the infrared light-transmitting area 1011, is located outside the opening area 10111. This improves the light transmittance of the opening area 10111, enhances the infrared communication performance of the display panel 100, and avoids the problem in the prior art where the touch grid blocks the opening area 10111, resulting in reduced light transmittance and failure to meet standards, thus causing poor infrared communication performance of the display panel 100.

[0075] Example 3

[0076] like Figure 10 As shown, this embodiment includes most of the technical features of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, the projection shape of the through hole 61 on the substrate 1 is rectangular. In this embodiment, the wires 513 of the touch electrodes in each touch unit 51 within the display area 101 include: a first wire 5131, a second wire 5132, a third wire 5133, and a fourth wire 5134. Therefore, without changing the mask plate in which the wires 513 form the touch grid, the requirement to change the display panel 100 from a non-depolarized display panel to a depolarized display panel can be met. When the position of the infrared light-transmitting area 1011 changes, the mask plate in which the wires 513 form the touch grid can be kept unchanged, reducing the production cost of the display panel 100.

[0077] The conductor 513513 located within the infrared light-transmitting area 1011 is located outside the opening area 10111. This improves the light transmittance of the opening area 10111, enhances the infrared communication performance of the display panel 100, and avoids the problem in the prior art where the touch grid blocks the opening area 10111, resulting in reduced light transmittance and failure to meet standards, thus causing poor infrared communication performance of the display panel 100.

[0078] Furthermore, the above provides a detailed description of a display panel provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, characterized in that, include: Display area; The display area has at least one infrared light-transmitting area, and the infrared light-transmitting area has at least one opening area; The display panel includes: substrate; A touch layer, disposed on the substrate, includes touch electrodes; the touch electrodes include a touch grid formed by wires; and A black matrix layer is disposed on the side of the touch layer away from the substrate, and has through holes; the through holes are located within the opening area; The conductor located within the infrared light-transmitting area is located outside the opening area; The display panel also includes: A light-emitting layer is disposed between the substrate and the touch layer, and includes a plurality of spaced sub-pixels; The sub-pixel includes: a first sub-pixel, a second sub-pixel, and a third sub-pixel; the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel; The first sub-pixel, the second sub-pixel, and the third sub-pixel are all centrally symmetrical shapes; The conductor includes: a first conductor, a second conductor, a third conductor, and a fourth conductor; Each of the first conductors surrounds a first sub-pixel, each of the second conductors surrounds a second sub-pixel, each of the third conductors surrounds a third sub-pixel, and each of the fourth conductors surrounds a third sub-pixel; the shape formed by the fourth conductors includes: a first virtual rectangle and a second virtual rectangle symmetrically arranged about a second direction, and a first virtual isosceles trapezoid and a second virtual isosceles trapezoid symmetrically arranged about a second direction, wherein the upper base of the first virtual isosceles trapezoid coincides with one side of the first virtual rectangle; in the infrared light-transmitting area, the orthographic projection of the via on the touch layer is at least partially located within the first virtual rectangle or the second virtual rectangle.

2. The display panel according to claim 1, characterized in that, The fourth conductor located within the infrared light-transmitting area also surrounds two through holes arranged along the first direction; the fourth conductor is staggered with the third conductor in the first direction; the fourth conductor is staggered with the third conductor in a second direction perpendicular to the first direction.

3. The display panel according to claim 2, characterized in that, The two through holes located within the shape formed by the fourth conductor are located on both sides of the third sub-pixel.

4. The display panel according to claim 3, characterized in that, The shape formed by the third conductor is a centrally symmetrical hexagon; The shape formed by the fourth conductor is a centrally symmetrical figure.

5. The display panel according to claim 4, characterized in that, The center of the shape formed by the third conductor coincides with the center of the third sub-pixel it surrounds; the center of the shape formed by the fourth conductor coincides with the center of the third sub-pixel it surrounds.

6. The display panel according to claim 4, characterized in that, The two vias surrounded by each of the fourth conductors are symmetrical about the center of the third sub-pixel they surround.

7. The display panel according to claim 1, characterized in that, In the first direction, the minimum distance between the third sub-pixel within the shape enclosed by any of the fourth conductors and the via within it is the first distance; the minimum distance between the third sub-pixel within the shape enclosed by any of the third conductors and the via is the second distance, and the first distance is less than the second distance.

8. The display panel according to claim 1, characterized in that, The projection of the through hole onto the substrate completely coincides with the opening area.

9. The display panel according to claim 1, characterized in that, The shape of the projection of the through hole onto the substrate includes one or more of the following: circular, elliptical, and rectangular.

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