Transparent electrodes, array substrates and display devices

Abstract

This application discloses a transparent electrode, an array substrate, and a display device. The transparent electrode has a first domain region and a second domain region connected together. The transparent electrode includes: a main path located in the first domain region and the second domain region; a first branch located in the first domain region, one end of which is connected to the main path, and the other end of which extends to the boundary line between the first domain region and the second domain region; and a second branch located in the second domain region, one end of which is connected to the main path, and the other end of which extends to the boundary line between the first domain region and the second domain region. The ends of the first branch extending to the boundary line and the ends of the second branch extending to the boundary line are spaced apart in the extension direction of the boundary line, such that the ends of the first branch extending to the boundary line and the ends of the second branch extending to the boundary line respectively generate edge electric fields on the boundary line, thereby allowing the liquid crystal material at the boundary line between the first domain region and the second domain region to rotate by means of the edge electric field, thereby improving the dark display phenomenon.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a transparent electrode, an array substrate, and a display device. Background Technology

[0002] Liquid crystal displays (LCDs) are currently the most commonly used flat panel displays, among which thin-film transistor liquid crystal displays (TFT-LCDs) are the mainstream products.

[0003] In related technologies, the array substrate of a liquid crystal display (LCD) has multiple pixel units, each pixel unit having a transparent electrode. These transparent electrodes have two connected domain regions, thereby improving the viewing angle characteristics of the LCD. However, at the boundary between the two domain regions, the liquid crystal material cannot rotate effectively, resulting in a darker actual display. Utility Model Content

[0004] This application proposes a transparent electrode, an array substrate, and a display device to solve the technical problem that the liquid crystal material at the boundary of two connected domain regions cannot rotate effectively, resulting in a darker actual display.

[0005] On one hand, this application provides a transparent electrode for an array substrate, the transparent electrode having a first domain region and a second domain region connected together, the transparent electrode comprising:

[0006] The main road is located in the first domain region and the second domain region;

[0007] The first branch is located in the first domain region, one end of the first branch is connected to the main road, and the other end of the first branch extends to the boundary line between the first domain region and the second domain region;

[0008] The second branch is located in the second domain region. One end of the second branch is connected to the main road, and the other end of the second branch extends to the boundary line between the first domain region and the second domain region.

[0009] Wherein, the end of the first branch extending to the boundary line and the end of the second branch extending to the boundary line are spaced apart in the extension direction of the boundary line.

[0010] In one embodiment, there are multiple first branches, which are arranged in parallel and spaced apart along the extension direction of the boundary line; there are multiple second branches, which are arranged in parallel and spaced apart along the extension direction of the boundary line, and the ends of the first branches extending to the boundary line and the ends of the second branches extending to the boundary line are alternately arranged in the extension direction of the boundary line.

[0011] In one embodiment, the main path includes a first branch, a second branch, a third branch, and a fourth branch. The first branch is disposed opposite to the second branch, and the third branch is disposed opposite to the fourth branch. The first branch is located in the first domain region, and the second branch is located in the second domain region. The two ends of the third branch and the fourth branch are respectively connected to the first branch and the second branch.

[0012] The first branch and the second branch are located within the area enclosed by the first branch, the second branch, the third branch and the fourth branch, wherein one end of the first branch is connected to one of the first branch, the third branch and the fourth branch, and one end of the second branch is connected to one of the second branch, the third branch and the fourth branch.

[0013] In one embodiment, the third branch and the fourth branch are bent at the boundary between the first domain region and the second domain region. One end of the first branch is connected to the first branch and is parallel and spaced apart from the third branch and the fourth branch located in the first domain region. One end of the second branch is connected to the second branch and is parallel and spaced apart from the third branch and the fourth branch located in the second domain region.

[0014] In one embodiment, one end of the first branch is connected to the first branch and is parallel to and spaced apart from the third branch and the fourth branch, one end of the second branch is connected to the second branch and is parallel to and spaced apart from the third branch and the fourth branch, and the extension direction of the first branch is parallel to the extension direction of the second branch.

[0015] In one embodiment, one end of the first branch is connected to the third branch, and the main road further includes a fifth branch parallel to the first branch, one end of the fifth branch being connected to the first branch and the other end being connected to the fourth branch located in the first domain region;

[0016] One end of the second branch is connected to the third branch, and the main road also includes a sixth branch parallel to the second branch. One end of the sixth branch is connected to the second branch, and the other end is connected to the fourth branch located in the second domain region.

[0017] In one embodiment, one end of the first branch is connected to the third branch, and the main road further includes a fifth branch parallel to the first branch, one end of the fifth branch being connected to the first branch and the other end being connected to the fourth branch located in the first domain region;

[0018] One end of the second branch is connected to the fourth branch, and the main road also includes a sixth branch parallel to the second branch. One end of the sixth branch is connected to the second branch, and the other end is connected to the third branch located in the second domain region.

[0019] In one embodiment, the extension direction of the first branch is arranged parallel to or intersects the extension direction of the second branch.

[0020] On the other hand, this application also provides an array substrate, including an electrode layer, the electrode layer including a plurality of transparent electrodes as described above.

[0021] In another aspect, this application also provides a display device, including a color filter substrate, a liquid crystal layer and an array substrate as described above, wherein the color filter substrate and the array substrate are disposed opposite to each other, and the liquid crystal layer is disposed between the color filter substrate and the array substrate.

[0022] As can be seen from the above technical solution, the transparent electrode provided in this application is provided by arranging the end of the first branch extending to the boundary line and the end of the second branch extending to the boundary line at intervals in the extension direction of the boundary line, so that the end of the first branch extending to the boundary line and the end of the second branch extending to the boundary line respectively generate an edge electric field on the boundary line, thereby allowing the liquid crystal material at the boundary line between the first domain region and the second domain region to rotate by means of the edge electric field, so as to improve the dark display phenomenon. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a top view of a transparent electrode in one embodiment of this application.

[0025] Figures 2 to 5 This is a top view of the transparent electrode in another embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] like Figures 1-5 As shown, this application provides a transparent electrode 10 for an array substrate. The transparent electrode 10 has a first domain region 11 and a second domain region 12 connected together. The transparent electrode 10 includes a main path 100, a first branch 200, and a second branch 300. The main path 100 is located in the first domain region 11 and the second domain region 12. The first branch 200 is located in the first domain region 11, one end of the first branch 200 is connected to the main path 100, and the other end of the first branch 200 extends to the first domain region 11 and the second domain region 300. The boundary line 13 of the first domain 11 and the second domain 12; the second branch road 300 is located in the second domain 12, one end of the second branch road 300 is connected to the main road 100, and the other end of the second branch road 300 extends to the boundary line 13 of the first domain 11 and the second domain 12; wherein, the end of the first branch road 200 extending to the boundary line 13 of the first domain 11 and the end of the second branch road 300 extending to the boundary line 13 of the first domain 11 and the second domain 12 are spaced apart in the extension direction of the boundary line 13. Compared with related technologies, the transparent electrode 10 provided in this application is provided by spacing one end of the first branch 200 extending to the boundary line 13 and one end of the second branch 300 extending to the boundary line 13 in the extension direction of the boundary line 13, so that the one end of the first branch 200 extending to the boundary line 13 and the one end of the second branch 300 extending to the boundary line 13 respectively generate an edge electric field on the boundary line 13, thereby allowing the liquid crystal material of the boundary line 13 to rotate by the edge electric field, so as to improve the dark display phenomenon.

[0030] For example, the transparent electrode 10 may be made of a transparent conductive material such as indium tin oxide (i.e., ITO), indium zinc oxide (IZO), indium tin zinc oxide (ITZO), or indium gallium zinc oxide (IGZO).

[0031] Optionally, the main road 100 includes a first branch 110, a second branch 120, a third branch 130, and a fourth branch 140. The first branch 110 and the second branch 120 are positioned opposite each other, and the third branch 130 and the fourth branch 140 are positioned opposite each other. The first branch 110 is located in the first domain 11, the second branch 120 is located in the second domain 12, the two ends of the third branch 130 are connected to the first branch 110 and the second branch 120 respectively, and the two ends of the fourth branch 140 are connected to the first branch 110 and the second branch 120 respectively. That is, the first branch 110, the third branch 130, the second branch 120, and the fourth branch 140 are sequentially connected to enclose and form the main road area. The boundary line 13 is located between the first branch 110 and the second branch 120, thereby dividing the third branch 130 and the fourth branch 140 into two parts respectively. One part of the third branch 130 and the fourth branch 140 is located in the first domain 11, and the other part of the third branch 130 and the fourth branch 140 is located in the second domain 12.

[0032] Optionally, there may be multiple first branches 200, arranged parallel to each other along the extension direction of the boundary line 13; there may also be multiple second branches 300, arranged parallel to each other along the extension direction of the boundary line 13, with the ends of the first branches 200 extending to the boundary line 13 and the ends of the second branches 300 extending to the boundary line 13 alternating in the extension direction of the boundary line 13. This constitutes a transparent electrode 10 with a slit design, which improves the light transmittance, brightness, and contrast of the display panel having the transparent electrode 10, and reduces light scattering and leakage, providing a clearer and brighter image.

[0033] In one implementation, such as Figure 2As shown, the first branch 110, the second branch 120, the third branch 130, and the fourth branch 140 extend in straight lines, with the first branch 110 parallel to the second branch 120 and the third branch 130 parallel to the fourth branch 140. Thus, the first branch 110, the third branch 130, the second branch 120, and the fourth branch 140 sequentially connect to form a parallelogram-shaped main road area. The first branch 200 extends in a straight line, with one end connected to the first branch 110 and the other end extending to the boundary line 13. The first branch 200 is parallel and spaced apart from the third branch 130 and the fourth branch 140. The second branch 300 extends in a straight line, with one end connected to the second branch 120 and the other end extending to the boundary line 13. The second branch 300 is parallel and spaced apart from the third branch 130 and the fourth branch 140. In this embodiment, since the first branch 200 and the second branch 300 are arranged parallel to and spaced apart from the third branch 130 and the fourth branch 140 respectively, the extension direction of the first branch 200 is parallel to the extension direction of the second branch 300.

[0034] In one implementation, such as Figure 1 As shown, the third branch 130 and the fourth branch 140 are bent at the boundary line. The first branch 200 extends in a straight line, with one end connected to the first branch 110 and the other end extending to the boundary line 13. The first branch 200 is parallel and spaced apart from the third branch 130 and the fourth branch 140 located in the first domain 11. The second branch 300 extends in a straight line, with one end connected to the second branch 120 and the other end extending to the boundary line 13. The second branch 300 is parallel and spaced apart from the third branch 130 and the fourth branch 140 located in the second domain 12. In this embodiment, because the third branch 130 and the fourth branch 140 are bent at the boundary line, the extension directions of the first branch 200 and the second branch 300 intersect.

[0035] In one implementation, such as Figure 3 As shown, one end of the first branch 200 is connected to the third branch 130 located in the first domain 11, and the other end of the first branch 200 extends to the boundary line 13; the main road 100 also includes a fifth branch 150, one end of the fifth branch 150 is connected to the first branch 110, and the other end is connected to the fourth branch 140 located in the first domain 11, and the fifth branch 150 is arranged parallel to and spaced apart from the first branch 200.

[0036] One end of the second branch 300 is connected to the third branch 130 located in the second domain region 12, and the other end of the second branch 300 extends to the boundary line 13. The main road 100 also includes a sixth branch 160, one end of which is connected to the second branch 120, and the other end is connected to the fourth branch 140 located in the second domain region 12. The sixth branch 160 and the second branch 300 are arranged parallel to each other at intervals. In this embodiment, since one end of the first branch 200 and the second branch 300 are respectively connected to the third branch 130, the extension direction of the first branch 200 is parallel to the extension direction of the second branch 300.

[0037] It should be noted that in other embodiments, the fifth branch 150 and the sixth branch 160 may have one end as a connection end and the other end as a free end. For example, one end of the fifth branch 150 is connected to the first branch 110, and the other end is spaced apart from the fourth branch 140 of the first domain region 11; one end of the sixth branch 160 is connected to the second branch 120, and the other end is spaced apart from the fourth branch 140 located in the second domain region 12.

[0038] Furthermore, there are multiple fifth branches 150, arranged in parallel and spaced intervals. There are also multiple sixth branches 160, arranged in parallel and spaced intervals.

[0039] It should be noted that in other embodiments, adjusting the angle between the first branch 200 and the third branch 130 may result in other situations. For example, decreasing the angle between the first branch 200 and the third branch 130 may result in the following: one end of a portion of the first branch 200 is connected to the third branch 130 located in the first domain region 11, and the other end extends to the boundary line 13; another portion of the first branch 200 is connected to the first branch 110 at one end, and the other end extends to the boundary line 13; one end of the fifth branch 150 is connected to the first branch 110, and the other end is connected to the fourth branch 140 located in the first domain region 11; or, for example, increasing the angle between the first branch 200 and the third branch 130 may result in the following: The angle between the third branches 130 will result in one end of the first branch 200 being connected to the third branch 130 located in the first domain 11, and the other end of the first branch 200 extending to the boundary line 13. One end of a portion of the fifth branch 150 is connected to the third branch 130 located in the first domain 11, and the other end is connected to the fourth branch 140 located in the first domain 11. Another portion of the fifth branch 150 is connected to the first branch 110 at one end and to the fourth branch 140 located in the first domain 11 at the other end.

[0040] Similarly, adjusting the angle between the second branch 300 and the third branch 130 will result in other situations. For example, decreasing the angle between the second branch 300 and the third branch 130 will result in some second branches 300 having one end connected to the third branch 130 located in the first domain region 11, and the other end extending to the boundary line 13; another part of the second branches 300 having one end connected to the second branch 120, and the other end extending to the boundary line 13; and the fifth branch 150 having one end connected to the second branch 120, and the other end connected to the fourth branch 130 located in the second domain region 12. 40; For example, by increasing the angle between the second branch 300 and the third branch 130, one end of the second branch 300 is connected to the third branch 130 located in the first domain 11, the other end of the first branch 200 extends to the boundary line 13, one end of a portion of the sixth branch 160 is connected to the third branch 130 located in the second domain 12, and the other end is connected to the fourth branch 140 located in the second domain 12, and one end of another portion of the sixth branch 160 is connected to the second branch 120, and the other end is connected to the fourth branch 140 located in the second domain 12.

[0041] In one implementation, such as Figure 4 As shown, this implementation method is similar to... Figure 3 The difference in the embodiment shown is that the third branch 130 and the fourth branch 140 are bent at the junction line.

[0042] In one implementation, such as Figure 5 As shown, one end of the first branch 200 is connected to the third branch 130 located in the first domain 11, and the other end of the first branch 200 extends to the boundary line 13; the main road 100 also includes a fifth branch 150, one end of the fifth branch 150 is connected to the first branch 110, and the other end is connected to the fourth branch 140 located in the first domain 11, and the fifth branch 150 is arranged parallel to and spaced apart from the first branch 200.

[0043] One end of the second branch 300 is connected to the fourth branch 140 located in the second domain 12, and the other end of the second branch 300 extends to the boundary line 13; the main road 100 also includes a sixth branch 160, one end of the sixth branch 160 is connected to the second branch 120, and the other end is connected to the third branch 130 located in the second domain 12, and the sixth branch 160 is arranged in parallel with the second branch 300 at intervals.

[0044] In this embodiment, the extension direction of the first branch 200 is parallel to the extension direction of the second branch 300. It should be noted that in other embodiments, the extension direction of the first branch 200 may intersect the extension direction of the second branch 300.

[0045] It is understood that in other embodiments, adjusting the angle between the first branch 200 and the third branch 130, and adjusting the angle between the second branch 300 and the fourth branch 140 of the second domain 12, will also result in a situation similar to that described above, which will not be repeated here.

[0046] This application also provides an array substrate 20, which includes a substrate, a transistor layer, a planarization layer, and an electrode layer stacked sequentially. The transistor layer includes a plurality of transistors, and the planarization layer has a plurality of vias, each via being disposed opposite to a corresponding transistor. The electrode layer includes a plurality of transparent electrodes 10 disposed at intervals as described above, each transparent electrode 10 being electrically connected to a corresponding transistor through a corresponding via. The electrode layer can be a pixel electrode layer or a common electrode layer.

[0047] This application also provides a display device, which includes a color filter substrate, a liquid crystal layer and an array substrate as described above, wherein the color filter substrate and the array substrate are disposed opposite to each other, and the liquid crystal layer is disposed between the color filter substrate and the array substrate.

[0048] Furthermore, the display device also includes a frame adhesive, a first polarizer, a second polarizer, a light source, and a backlight module. The frame adhesive is disposed between the color filter substrate and the array substrate and is respectively bonded to the edges of the color filter substrate and the array substrate. The first polarizer is disposed on the side of the color filter substrate away from the array substrate. The second polarizer is disposed on the side of the array substrate away from the color filter substrate. The light source is disposed on the side of the second polarizer away from the array substrate. The backlight module is disposed on the side of the light source away from the second polarizer.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A transparent electrode for use on an array substrate, the transparent electrode having a first domain region and a second domain region connected together, characterized in that, The transparent electrode includes: The main road is located in the first domain region and the second domain region; The first branch is located in the first domain region, one end of the first branch is connected to the main road, and the other end of the first branch extends to the boundary line between the first domain region and the second domain region; The second branch is located in the second domain region. One end of the second branch is connected to the main road, and the other end of the second branch extends to the boundary line between the first domain region and the second domain region. Wherein, the end of the first branch extending to the boundary line and the end of the second branch extending to the boundary line are spaced apart in the extension direction of the boundary line.

2. The transparent electrode as described in claim 1, characterized in that, There are multiple first branches, which are arranged in parallel and spaced apart along the extension direction of the boundary line; there are multiple second branches, which are arranged in parallel and spaced apart along the extension direction of the boundary line, and the ends of the first branches extending to the boundary line and the ends of the second branches extending to the boundary line are alternately arranged in the extension direction of the boundary line.

3. The transparent electrode as described in claim 2, characterized in that, The main road includes a first branch, a second branch, a third branch, and a fourth branch. The first branch and the second branch are arranged opposite to each other, and the third branch and the fourth branch are arranged opposite to each other. The first branch is located in the first domain region, and the second branch is located in the second domain region. The two ends of the third branch and the fourth branch are respectively connected to the first branch and the second branch. The first branch and the second branch are located within the area enclosed by the first branch, the second branch, the third branch and the fourth branch, wherein one end of the first branch is connected to one of the first branch, the third branch and the fourth branch, and one end of the second branch is connected to one of the second branch, the third branch and the fourth branch.

4. The transparent electrode as described in claim 3, characterized in that, The third branch and the fourth branch are bent at the boundary between the first domain region and the second domain region. One end of the first branch is connected to the first branch and is parallel and spaced apart from the third branch and the fourth branch located in the first domain region. One end of the second branch is connected to the second branch and is parallel and spaced apart from the third branch and the fourth branch located in the second domain region.

5. The transparent electrode as described in claim 3, characterized in that, One end of the first branch is connected to the first branch and is parallel to and spaced apart from the third branch and the fourth branch. One end of the second branch is connected to the second branch and is parallel to and spaced apart from the third branch and the fourth branch. The extension direction of the first branch is parallel to the extension direction of the second branch.

6. The transparent electrode as described in claim 3, characterized in that, One end of the first branch is connected to the third branch, and the main road also includes a fifth branch parallel to the first branch. One end of the fifth branch is connected to the first branch, and the other end is connected to the fourth branch located in the first domain region. One end of the second branch is connected to the third branch, and the main road also includes a sixth branch parallel to the second branch. One end of the sixth branch is connected to the second branch, and the other end is connected to the fourth branch located in the second domain region.

7. The transparent electrode as described in claim 3, characterized in that, One end of the first branch is connected to the third branch, and the main road also includes a fifth branch parallel to the first branch. One end of the fifth branch is connected to the first branch, and the other end is connected to the fourth branch located in the first domain region. One end of the second branch is connected to the fourth branch, and the main road also includes a sixth branch parallel to the second branch. One end of the sixth branch is connected to the second branch, and the other end is connected to the third branch located in the second domain region.

8. The transparent electrode as described in claim 7, characterized in that, The extension direction of the first branch is parallel to or intersects the extension direction of the second branch.

9. An array substrate, comprising an electrode layer, characterized in that, The electrode layer includes a plurality of transparent electrodes as described in any one of claims 1 to 8.

10. A display device, characterized in that, It includes a color filter substrate, a liquid crystal layer, and an array substrate as described in claim 9, wherein the color filter substrate and the array substrate are disposed opposite to each other, and the liquid crystal layer is disposed between the color filter substrate and the array substrate.

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