Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, the display panel comprises pixel electrodes and second wires located between two adjacent pixel electrodes, and the extension length of the second wires in the first direction is smaller than the extension length of the pixel electrodes in the first direction; in the second direction, a first interval region is arranged between every two adjacent pixel electrodes, each first interval region comprises a first sub-region and a second sub-region, and the second wires are located in the first sub-regions and are not located in the second sub-regions; the pixel electrode comprises a first type of sub-strip-shaped electrode adjacent to the second wire and a second type of sub-strip-shaped electrode not adjacent to the second wire, and the first type of sub-strip-shaped electrode comprises a second sub-strip-shaped electrode overlapped with the second sub-region in the second direction; the second type of sub-strip-shaped electrodes comprise third branch strip-shaped electrodes which are overlapped with the second sub-region in the second direction, and the second branch strip-shaped electrodes and the third branch strip-shaped electrodes are different in structure. According to the display panel, the local large-view-angle color cast of the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] In the field of display technology, liquid crystal display panels have advantages such as high reliability, low cost, long lifespan, and mature industrial ecosystem, and are widely used in the market.

[0003] In liquid crystal display panels, metal traces are typically placed between adjacent pixel electrodes, such as touch traces and dummy traces on the same layer as touch traces. However, in existing technologies, there are instances where the wide-viewing-angle light emitted from the pixel electrode area is blocked to varying degrees by the metal traces, which can easily lead to localized large-viewing-angle color shift problems in the display panel. Summary of the Invention

[0004] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.

[0005] This application provides a display panel including a first substrate, a second substrate, and a liquid crystal layer. The first substrate and the second substrate are disposed opposite to each other, and the liquid crystal layer is located between the first substrate and the second substrate. The first substrate includes a pixel electrode and a first metal layer. The first metal layer includes multiple first traces and second traces, and at least some of the first traces and second traces are located between two adjacent pixel electrodes. The pixel electrode includes a first part and a second part in a first direction. The first part includes multiple first strip electrodes arranged along a second direction, and the second part includes multiple second strip electrodes arranged along the second direction. The first direction and the second direction intersect. The extension length of the second trace in the first direction is less than the extension length of the pixel electrode in the first direction. In the second direction, a first interval region is provided between two adjacent pixel electrodes. The first interval region includes a first sub-region and a second sub-region. The second trace is located in the first sub-region but not in the second sub-region. The plurality of first strip electrodes include at least a first type of sub-strip electrode and a second type of sub-strip electrode. The first type of sub-strip electrode is adjacent to the second trace, and the second type of sub-strip electrode is located on the side of the first type of sub-strip electrode away from the second trace. The first type of sub-strip electrode includes a first strip electrode and a second strip electrode, and the second type of sub-strip electrode includes a first strip electrode and a third strip electrode. In the second direction, the projection of the second strip electrode at least partially overlaps with the projection of the second sub-region. The structure of the second strip electrode is different from that of the third strip electrode.

[0006] Based on the same inventive concept, embodiments of this application also provide a display device, including the display panel as described above.

[0007] In this embodiment, the structure of the second strip electrode in the first type of sub-strip electrode is different from the structure of the third strip electrode in the second type of sub-strip electrode. This makes it possible for the electric field at the second strip electrode to be different from the electric field at the third strip electrode. This allows the electric field at the second strip electrode to control the efficiency of liquid crystal rotation, reduce the ability of light to exit through the liquid crystal at the second strip electrode, and even form a local black domain region at the position of the second strip electrode.

[0008] Thus, when large-angle light rays emitted from the pixel electrode pass through the second sub-region and enter the edge region of the adjacent pixel electrode, the light transmission capability is reduced because the liquid crystal efficiency at the second strip electrode of the adjacent pixel electrode decreases. This helps to reduce the possibility of large-angle light rays entering the adjacent pixel electrode from the second sub-region passing through the liquid crystal at the edge of the adjacent pixel electrode, thereby helping to improve the local large viewing angle color shift problem of the display panel. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0010] Figure 1 A schematic diagram of a display panel provided in an embodiment of this application; Figure 2 for Figure 1 A partial planar schematic diagram of the first substrate; Figure 3 This is a partially enlarged schematic diagram of a first substrate provided in an embodiment of this application; Figure 4 A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 5A A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 5B A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 6 A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 7 A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 8 A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 9A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 10A A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 10B A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 10C A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 11 A partially enlarged schematic diagram of another first substrate provided in an embodiment of this application; Figure 12 This is a schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0011] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0012] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0013] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0015] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0016] Figure 1 This is a schematic diagram of a display panel provided in an embodiment of this application. Figure 2 for Figure 1A partial planar schematic diagram of the first substrate.

[0017] This application embodiment provides a display panel 01, such as Figure 1 As shown, the display panel 01 includes a first substrate 10, a second substrate 20 and a liquid crystal layer 30. The first substrate 10 and the second substrate 20 are disposed opposite to each other, and the liquid crystal layer 30 is located between the first substrate 10 and the second substrate 20.

[0018] For example, the first substrate 10 is an array substrate in a liquid crystal display panel, and the second substrate 20 is a color filter substrate in a liquid crystal display panel.

[0019] Combination Figure 2 As shown, the first substrate 10 includes a pixel electrode 11 and a first metal layer 12. The electric field generated by the pixel electrode 11 can drive the liquid crystal in the liquid crystal layer 30 to rotate. The first metal layer 12 includes a plurality of first traces 121 and second traces 122, at least some of the first traces 121 and second traces 122 are located between two adjacent pixel electrodes 11.

[0020] For example, the first metal layer 12 is located on the side of the pixel electrode 11 facing the light-emitting surface of the display panel 01, and the first trace 121 can be a touch trace in the display panel 01 for transmitting touch signals. The second trace 122 can be a dummy trace in the display panel 01. The second trace 122 is not used to transmit electrical signals, but is used to improve the process uniformity and light transmission uniformity of the display panel 01.

[0021] The pixel electrode 11 includes a first part 11A and a second part 11B in the first direction Y. The first part 11A includes a plurality of first strip electrodes 111 arranged along the second direction X. The second part 11B includes a plurality of second strip electrodes 112 arranged along the second direction X. The first direction Y intersects the second direction X. The second strip electrodes 112 are correspondingly connected to the first strip electrodes 111.

[0022] For example, the first direction Y is the column direction in the display panel 01, and the second direction X is the row direction in the display panel 01.

[0023] In the second direction X, a gap region Q is provided between two adjacent pixel electrodes 11. Among the multiple gap regions Q, there is a first gap region Q1. A second trace 122 is provided in the first gap region Q1. The extension length L1 of the second trace 122 in the first direction Y is less than the extension length L2 of the pixel electrode 11 in the first direction Y, that is, L1 < L2.

[0024] The first spacing region Q1 includes a first sub-region Q11 and a second sub-region Q12 in the first direction Y. The second trace 122 is located in the first sub-region Q11 and is not located in the second sub-region Q12. That is, in the second direction X, part of the structure of the pixel electrode 11 overlaps with the second trace 122, and part of the structure does not overlap with the second trace 122.

[0025] For example, the first sub-region Q11 is the middle region of the first interval region Q1, and the second sub-region Q12 is the edge region of the first interval region Q2.

[0026] The plurality of first strip electrodes 111 include a first type of sub-strip electrode 111A and a second type of sub-strip electrode 111B. The first type of sub-strip electrode 111A is adjacent to the second trace 122, and the second type of sub-strip electrode 111B is located on the side of the first type of sub-strip electrode 111A away from the second trace 122.

[0027] In other words, in the same pixel electrode 11, no other first strip electrode 111 is provided between the first type of sub-strip electrode 111A and the second trace 122, and the first type of sub-strip electrode 111A is provided between the second type of sub-strip electrode 111B and the second trace 122. The first type of sub-strip electrode 111A can be the outermost first strip electrode 111 in the pixel electrode 11.

[0028] The first type of sub-strip electrode 111A includes a first strip electrode 1111 and a second strip electrode 1112. In the same first type of sub-strip electrode 111A, the first strip electrode 1111 and the second strip electrode 1112 can be an integral structure connected to each other. The second strip electrode 1112 is located on the side of the first strip electrode 1111 away from the second part 11B. In the second direction X, the first strip electrode 1111 in the first type of sub-strip electrode 111A overlaps with the second trace 122.

[0029] The second type of sub-strip electrode 111B includes a first strip electrode 1111 and a third strip electrode 1113. In the same second type of sub-strip electrode 111B, the first strip electrode 1111 and the third strip electrode 1113 can be an integral structure connected to each other. The third strip electrode 1113 is located on the side of the first strip electrode 1111 away from the second part 11B. In the second direction X, the first strip electrode 1111 in the second type of sub-strip electrode 111B overlaps with the second trace 122.

[0030] For example, such as Figure 2 As shown, the first strip electrode 1111 in the second type of sub-strip electrode 111B can be arranged parallel to the first strip electrode 1111 in the first type of sub-strip electrode 111A.

[0031] In the second direction X, the projection of the second strip electrode 1112 at least partially overlaps with the projection of the second sub-region Q12, and the projection of the third strip electrode 1113 at least partially overlaps with the projection of the second sub-region Q12. The structure of the second strip electrode 1112 is different from the structure of the third strip electrode 1113.

[0032] The inventors of this application discovered through research that in display panels of related technologies, the structure of the first type of sub-strip electrode at the edge of the pixel electrode is usually the same as the structure of the second type of sub-strip electrode at the middle position. When the display panel needs to display an image, there is an electric field at both the first type of sub-strip electrode and the second type of sub-strip electrode. The liquid crystal at the position of the first type of sub-strip electrode (including the position of the first and second sub-strip electrodes) and the liquid crystal at the position of the second type of sub-strip electrode (including the position of the first and third sub-strip electrodes) will rotate normally, so that the light emitted by the backlight can be emitted not only through the liquid crystal at the middle position of the pixel electrode, but also through the liquid crystal at the edge position of the pixel electrode.

[0033] However, in related technologies, due to the small length of the second trace between two adjacent pixel electrodes, the second trace blocks large-angle light rays emitted from the pixel electrode differently. This results in some large-angle light rays being blocked by the second trace, while others are not blocked. The large-angle light rays that are not blocked by the second trace can easily enter the edge area of ​​the adjacent pixel electrode (i.e., the area of ​​the second strip electrode) and exit through the liquid crystal at the position of the second strip electrode of the adjacent pixel electrode, thus causing a local large viewing angle color shift problem in the display panel.

[0034] In view of this, in the embodiments of this application, the structure of the second strip electrode 1112 in the first type of sub-strip electrode 111A is different from the structure of the third strip electrode 1113 in the second type of sub-strip electrode 111B. This makes it possible for the electric field at the second strip electrode 1112 to be different from the electric field at the third strip electrode 1113. This allows the electric field at the second strip electrode 1112 to control the efficiency of liquid crystal rotation, reduce the ability of light to exit through the liquid crystal at the second strip electrode 1112, and even form a local black domain region at the position of the second strip electrode 1112.

[0035] Thus, when a large-angle light beam emitted from the pixel electrode 11 passes through the second sub-region Q12 and enters the edge region of the adjacent pixel electrode 11, the liquid crystal efficiency at the second strip electrode 1112 of the adjacent pixel electrode 11 decreases, reducing the light transmission capability. This helps to reduce the possibility of large-angle light beams entering the adjacent pixel electrode 11 from the second sub-region Q12 exiting through the liquid crystal at the edge of the adjacent pixel electrode 11, thereby helping to improve the local large viewing angle color shift problem of the display panel 01.

[0036] In one embodiment of this application, such as Figure 3 As shown, Figure 3 This is a partially enlarged schematic diagram of a first substrate provided in an embodiment of this application. The tilt angle of the second strip electrode 1112 relative to the first direction Y is different from the tilt angle of the third strip electrode 1113 relative to the first direction Y.

[0037] In this embodiment, the uniformity of the electric field at the pixel electrode 11 can be reduced by adjusting the tilt angle of the second strip electrode 1112 relative to the first direction Y. This results in a poorer electric field driving capability at the pixel electrode 11 near the second sub-region Q12, thereby reducing the ability of the electric field at the second strip electrode 1112 to control the rotation of the liquid crystal. This, in turn, helps to reduce the ability of light to exit through the liquid crystal at the second strip electrode 1112.

[0038] At the same time, the tilt angle of the third strip electrode 1113 relative to the first direction Y can be adjusted to make the electric field driving capability of the third strip electrode 1113 better, ensure the liquid crystal rotation performance of the third strip electrode 1113 better, and facilitate the realization of the ability of light to be emitted from the liquid crystal at the third strip electrode 1113 better, thereby helping to ensure the overall transmittance of light at the pixel electrode 11 is better.

[0039] Of course, at the first strip electrode 1111 of the first type of sub-strip electrode 111A and the first strip electrode 1111 of the second type of sub-strip electrode 111B, the driving capability of the electric field can be better, so as to further ensure that the overall transmittance of the liquid crystal at the pixel electrode 11 is good.

[0040] Specifically, the tilt angle of the second strip electrode 1112 relative to the first direction Y can be determined through simulation or experimentation in order to reduce the liquid crystal rotation efficiency at the second strip electrode 1112.

[0041] In one embodiment of this application, such as Figure 3 As shown, the angle between the second strip electrode 1112 and the first direction Y is... 1. The angle between the third strip electrode 1113 and the first direction Y is... 2. Among them, 1 < 2.

[0042] In this embodiment of the application, the determination can be made through simulation or experimentation. The value of 2 is chosen to ensure a good electric field driving capability at the third strip electrode 1113, thus guaranteeing the rotational performance of the liquid crystal at the third strip electrode 1113. For example, 18° ≤ 2≤22°.

[0043] Then through settings 1 < 2. Reducing the electric field driving capability at the second strip electrode 1112 results in poor liquid crystal rotation performance at the second strip electrode 1112, and may even lead to the formation of local black domains. This reduces the possibility of large-angle light rays entering the adjacent pixel electrode 11 from the second sub-region Q12 and exiting through the liquid crystal at the adjacent pixel electrode 11, thus improving the local large viewing angle color shift problem of the display panel 01. For example, 1 < 18°.

[0044] Moreover, 1 < 2. It also helps to avoid the second strip electrode 1112 being too close to the third strip electrode 1113, or too close to the interval area Q, which would affect the normal wiring of the display panel 01.

[0045] Optional, please continue to refer to Figure 3 In the first strip electrode 111, the angle between the first strip electrode 1111 and the first direction Y is . 3, 3< 2. That is, in the first type of sub-strip electrode 111A, the angle between the first strip electrode 1111 and the first direction Y is . 3. In the second type of sub-strip electrode 111B, the angle between the first strip electrode 1111 and the first direction Y is also... 3.

[0046] make 3< 2. In the second type of sub-strip electrode 111B, the first strip electrode 1111 and the third strip electrode 1113 may not be on the same straight line. Since the third strip electrode 1113 is closer to the edge of the pixel electrode 11 than the first strip electrode 1111, the tilt angle of the third strip electrode 1113 relative to the first direction Y is made larger. This is beneficial to make the electric field distribution in the middle and edge parts of the second type of sub-strip electrode 111B more uniform, resulting in better liquid crystal rotation performance at the second type of sub-strip electrode 111B. This, in turn, is beneficial to make the transmittance of the liquid crystal higher throughout the second type of sub-strip electrode 111B.

[0047] For example, 5°≤ 3≤7°.

[0048] Optional, 1≥ 3. That is, in the first type of sub-strip electrode 111A, the second strip electrode 1112 and the first strip electrode 1111 may or may not be on the same straight line.

[0049] For example, such as Figure 3 As shown, 1> 3. In the first type of sub-strip electrode 111A, the second strip electrode 1112 is not on the same straight line as the first strip electrode 1111. Thus, while reducing the liquid crystal rotation efficiency at the second strip electrode 1112, when the first strip electrode 1111 in the first type of sub-strip electrode 111A is tilted away from the first spacing region Q1 relative to the first direction Y, the second strip electrode 1112 can be further tilted away from the first spacing region Q1. This helps to further reduce the liquid crystal rotation performance near the second sub-region Q12, and further reduces the possibility of large-angle light rays entering the adjacent pixel electrode 11 from the second sub-region Q12 exiting through the liquid crystal at the edge of the adjacent pixel electrode 11.

[0050] For example, such as Figure 4 As shown, Figure 4 This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. 1= 3. In the first type of sub-strip electrode 111A, the second strip electrode 1112 and the first strip electrode 1111 are located on the same straight line. In this way, while reducing the liquid crystal rotation efficiency at the second strip electrode 1112, when the first strip electrode 1111 in the first type of sub-strip electrode 111A is tilted relative to the first direction Y towards the first spacing region Q1, it helps to prevent the second strip electrode 1112 from being too close to the first spacing region Q1, thus affecting the normal wiring in the display panel 01.

[0051] Optional, such as Figure 5A As shown, Figure 5A This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. 1 < 3. In the first type of sub-strip electrode 111A, the second strip electrode 1112 is not on the same straight line as the first strip electrode 1111. Of course, 1 < 2.

[0052] Based on this configuration, while reducing the liquid crystal rotation efficiency at the second strip electrode 1112, it also helps to increase the structural diversity of the pixel electrode 11.

[0053] For example, such as Figure 5B As shown, Figure 5B This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. 1 = 0°. That is, the second strip electrode 1112 can be a vertical structure. In this way, the second strip electrode 1112 does not need to be tilted relative to the first direction Y, which helps to reduce the difficulty of fabricating the second strip electrode 1112.

[0054] Figure 6 This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application.

[0055] In one embodiment of this application, such as Figure 6 As shown, the first type of sub-strip electrode 111A includes a first side sub-strip electrode 111A1 and a second side sub-strip electrode 111A2. The first side sub-strip electrode 111A1 and the second side sub-strip electrode 111A2 are respectively adjacent to the second traces 112 on opposite sides of the pixel electrode 11.

[0056] In other words, on both sides of the same pixel electrode 11, there are second traces 112. The first type of sub-strip electrode 111A adjacent to one of the second traces 112 can be the first side sub-strip electrode 111A1, and the first type of sub-strip electrode 111A adjacent to the other second trace 112 can be the second side sub-strip electrode 111A2.

[0057] In the first side sub-strip electrode 111A1, the angle between the second sub-strip electrode 1112 and the first direction Y is . 11. In the second side strip electrode 111A2, the angle between the second strip electrode 1112 and the first direction Y is... 12.

[0058] in, 11≠ 12, of course ,and .

[0059] In this embodiment of the application, the following is set 11≠ 12. While reducing the liquid crystal rotation efficiency at the second branch strip electrode 1112 in the first side sub-strip electrode 111A1 and the second side sub-strip electrode 111A2, the tilt angle of the second branch strip electrode 1112 in the first side sub-strip electrode 111A1 and the second side sub-strip electrode 111A2 can be flexibly set according to the space on both sides of the pixel electrode 11 or actual needs, which is beneficial to improving the setting flexibility of the first type of sub-strip electrode 111A in the pixel electrode 11.

[0060] For example, such as Figure 6 As shown, 11> 3, 12= 3. Thus, when the first strip electrode 1111 in the first side sub-strip electrode 111A1 is tilted away from its adjacent second trace 122 relative to the first direction Y, and the first strip electrode 1111 in the second side sub-strip electrode 111A2 is tilted closer to its adjacent second trace 122 relative to the first direction Y, it can both ensure that the second strip electrode 1112 in the first side sub-strip electrode 111A1 is far away from its adjacent first interval region Q1, and prevent the second strip electrode 1112 in the second side sub-strip electrode 111A2 from being too close to its adjacent first interval region Q1.

[0061] In addition, in some other embodiments, it is also possible to set 11= 12. For example Figure 5B As shown, 11 and Both 12 are at 0°, meaning that the second strip electrode 1112 in the first side sub-strip electrode 111A1 and the second strip electrode 1112 in the second side sub-strip electrode 111A2 are both vertical structures. This helps to reduce the structural complexity of the first type of sub-strip electrode 111A in the pixel electrode 11 and reduces the fabrication difficulty of the pixel electrode 11.

[0062] It should be noted that, as Figure 7 As shown, Figure 7This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. In the display panel 01, a plurality of spaced regions Q include a second spaced region Q2. A first trace 121 is disposed in the second spaced region Q2. The extension length of the first trace 121 in the first direction Y is greater than the extension length of the pixel electrode 11 in the first direction Y. That is, the first trace 121 can block large-angle light passing through the pixel electrode 11 in all directions, preventing large-angle light from passing through the second spaced region Q2 and entering the area where the adjacent pixel electrode 11 is located.

[0063] When one side of the pixel electrode 11 is the first interval region Q1 and the other side is the second interval region Q2, the first strip electrode 111 adjacent to the first interval region Q1 is the first type of sub-strip electrode 111A, and the first strip electrode 111 adjacent to the second interval region Q2 is the second type of sub-strip electrode 111B.

[0064] In one embodiment of this application, such as Figure 3 As shown, the first part 11A of the pixel electrode 11 also includes a first connecting part 1101, which is located on the edge side of the first part 11A away from the second part 11B. The second strip electrode 1112 and the third strip electrode 1113 are both connected to the first connecting part 1101.

[0065] In other words, in the first part 11A of the pixel electrode 11, the first type of sub-strip electrode 111A and the second type of sub-strip electrode 111B can be electrically connected through the first connecting part 1101.

[0066] In this embodiment, the first connecting part 1101 can electrically connect the first type of sub-strip electrode 111A and the second type of sub-strip electrode 111B, which is beneficial to improve the reliability of the first type of sub-strip electrode 111A and the second type of sub-strip electrode 111B in receiving electrical signals, and reduce the probability that the first type of sub-strip electrode 111A or the second type of sub-strip electrode 111B will be unable to receive electrical signals due to breakage.

[0067] Furthermore, in some other embodiments, such as Figure 8 As shown, Figure 8 This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. In the first part 11A of the pixel electrode 11, the first connecting part 1101 may not be provided, and the first strip electrode 111 in the first part 11A can be electrically connected through the second part 11B. In this way, the material of the pixel electrode 11 can be saved, which is beneficial to reducing the manufacturing cost of the display panel 01.

[0068] It should be noted that when the first part 11A of the pixel electrode 11 is provided with the first connecting part 1101, the first strip electrode 111 in the first part 11A can be electrically connected not only through the first connecting part 1101, but also through the second part 11B.

[0069] In one embodiment of this application, the length of the first type of sub-strip electrode 111A in the first direction Y is not less than the length of the second type of sub-strip electrode 111B in the first direction Y.

[0070] For example, such as Figure 7 As shown, the length of the first type of sub-strip electrode 111A in the first direction Y can be equal to the length of the second type of sub-strip electrode 111B in the first direction Y.

[0071] The length S1 of the second strip electrode 1112 in the first direction Y is greater than the length S2 of the third strip electrode 1113 in the first direction Y. That is, S1 > S2.

[0072] In the first type of sub-strip electrode 111A, the first strip electrode 1111 can be a straight line segment, and the second strip electrode 1112 may not be on the same straight line as the first strip electrode 1111. The intersection of the second strip electrode 1112 and the first strip electrode 1111 is the boundary point between them. When the second strip electrode 1112 and the first strip electrode 1111 are on the same straight line, the second strip electrode 1112 can refer to the portion of the first type of sub-strip electrode 111A that is completely covered by the projection of the second sub-region Q12 in the second direction X.

[0073] In the second type of sub-strip electrode 111B, the first strip electrode 1111 can be a straight line segment, and the third strip electrode 1113 is not on the same straight line as the first strip electrode 1111. The intersection of the third strip electrode 1113 and the first strip electrode 1111 is the dividing point between the two.

[0074] In this embodiment, the length S1 of the second strip electrode 1112 in the first direction Y is relatively large, which facilitates the fabrication of the second strip electrode 1112, reduces the fabrication difficulty of the second strip electrode 1112, thereby improving the fabrication yield of the second strip electrode 1112, and further improving the product yield of the display panel 01.

[0075] Optional, such as Figure 9 As shown, Figure 9This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. In the second direction X, the projection of the second strip electrode 1112 overlaps with the projection of the second trace 122. This significantly reduces the rotation efficiency of the liquid crystal near the second sub-region Q12, which is beneficial for improving the reliability of liquid crystal emission from the edge of adjacent pixel electrodes 11, avoiding large-angle light rays.

[0076] Figure 10A This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. Figure 10B This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application.

[0077] In one embodiment of this application, such as Figure 10A and Figure 10B As shown, the length C1 of the first type of sub-strip electrode 111A in the first direction Y is less than the length C2 of the second type of sub-strip electrode 111B in the first direction Y. That is, in the first direction Y, the second type of sub-strip electrode 111B can protrude from the first type of sub-strip electrode 111A, and the first type of sub-strip electrode 111A is recessed inward relative to the second type of sub-strip electrode 111B towards the side closer to the second part 11B.

[0078] In this embodiment, by setting the length of the first type of sub-strip electrode 111A in the first direction Y to be small, the overlap length between the first type of sub-strip electrode 111A and the second sub-region Q12 in the second direction X can be small. This is beneficial to reducing the electric field strength of the pixel electrode 11 near the second sub-region Q12, thereby reducing the liquid crystal rotation efficiency of the pixel electrode 11 near the second sub-region Q12. This, in turn, helps to reduce the possibility of large-angle light rays entering the adjacent pixel electrode 11 from the second sub-region Q12 exiting through the liquid crystal at the edge of the adjacent pixel electrode 11, thus improving the local large viewing angle color shift problem of the display panel 01.

[0079] For example, such as Figure 10A As shown, while setting the length C1 of the first type of sub-strip electrode 111A in the first direction Y to be less than the length C2 of the second type of sub-strip electrode 111B in the first direction Y, the tilt angle of the second strip electrode 1112 can be the same as the tilt angle of the third strip electrode 1113. That is, in Figure 10A In the middle, you can set 1= 2. In this way, while reducing the liquid crystal rotation efficiency at the position of the pixel electrode 11 near the second sub-region Q12, it is also beneficial to reduce the structural complexity of the pixel electrode 11, thereby reducing the difficulty of fabricating the pixel electrode 11.

[0080] For example, such as Figure 10BAs shown, while setting the length C1 of the first type of sub-strip electrode 111A in the first direction Y to be less than the length C2 of the second type of sub-strip electrode 111B in the first direction Y, the tilt angle of the second strip electrode 1112 can also be set to be different from the tilt angle of the third strip electrode 1113. That is, in Figure 10A In the middle, you can set 1≠ 2. For example, settings 1 < 2. In this way, the liquid crystal rotation efficiency at the second strip electrode 1112 can be reduced, thereby significantly reducing the liquid crystal rotation efficiency at the pixel electrode 11 near the second sub-region Q12. This helps to further reduce the possibility of large-angle light entering the adjacent pixel electrode 11 from the second sub-region Q12 and exiting through the liquid crystal at the edge of the adjacent pixel electrode 11.

[0081] In the embodiments of this application, such as Figure 10C As shown, Figure 10C This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. The first part 11A may further include a first connecting part 1101, through which the first type of sub-strip electrode 111A and the second type of sub-strip electrode 111B can be electrically connected to improve the reliability of the first type of sub-strip electrode 111A and the second type of sub-strip electrode 111B in receiving electrical signals. Of course, as Figure 10A and Figure 10B As shown, the first connecting part 1101 may not be provided in the first part 11A to save costs.

[0082] It should be noted that in some other embodiments, such as Figure 11 As shown, Figure 11 This is a partially enlarged schematic diagram of another first substrate provided in an embodiment of this application. In the second direction X, the first type of sub-strip electrode 111A may not overlap with the second sub-region Q12. That is, the first type of sub-strip electrode 111A may not include the second strip electrode 1112, and in the second direction X, the projection of the second trace 112 can completely cover the first type of sub-strip electrode 111A.

[0083] In one embodiment of this application, such as Figure 2 As shown, the same first interval region Q1 also includes a third sub-region Q13. In the first direction Y, the third sub-region Q13 and the second sub-region Q12 are located on opposite sides of the first sub-region Q11, and the second trace 122 is not located in the third sub-region Q13.

[0084] Among the multiple second strip electrodes 112, there are third type sub-strip electrodes 111C and fourth type sub-strip electrodes 111D. The third type sub-strip electrode 111C is adjacent to the second trace 112, and the fourth type sub-strip electrode 111D is located on the side of the third type sub-strip electrode 111C away from the second trace 112.

[0085] The third type of sub-strip electrode 111C and the first type of sub-strip electrode 111A can be an integral structure that is interconnected, and the fourth type of sub-strip electrode 111D and the second type of sub-strip electrode 111B can be an integral structure that is interconnected.

[0086] The third type of sub-strip electrode 111C includes a fourth strip electrode 1114 and a fifth strip electrode 1115, with the fifth strip electrode 1115 located on the side of the fourth strip electrode 1114 away from the first part 11A. In the second direction X, the fourth strip electrode 1114 in the third type of sub-strip electrode 111C overlaps with the second trace 112.

[0087] The fourth type of sub-strip electrode 111D includes a fourth strip electrode 1114 and a sixth strip electrode 1116, with the sixth strip electrode 1116 located on the side of the fourth strip electrode 1114 away from the first part 11A. In the second direction X, the fourth strip electrode 1114 in the fourth type of sub-strip electrode 111D overlaps with the second trace 112.

[0088] For example, such as Figure 2 As shown, the fourth strip electrode 1114 in the fourth type of sub-strip electrode 111D can be arranged parallel to the fourth strip electrode 1114 in the third type of sub-strip electrode 111C.

[0089] In the second direction X, the projection of the fifth strip electrode 1115 at least partially overlaps with the projection of the third sub-region Q13, and the projection of the sixth strip electrode 1116 at least partially overlaps with the projection of the third sub-region Q13. The structure of the fifth strip electrode 1115 is different from the structure of the sixth strip electrode 1116.

[0090] The inventors of this application discovered through research that large-angle light rays emitted from pixel electrodes can easily pass through the third sub-region and enter the edge region of adjacent pixel electrodes, causing local large viewing angle distortion problems in the display panel.

[0091] In view of this, in the embodiments of this application, the structure of the fifth strip electrode 1115 in the third type of sub-strip electrode 111C is different from the structure of the sixth strip electrode 1116 in the fourth type of sub-strip electrode 111D. This makes it possible for the electric field at the fifth strip electrode 1115 to be different from the electric field at the sixth strip electrode 1116. This can reduce the efficiency of the electric field at the fifth strip electrode 1115 in controlling the rotation of the liquid crystal, reduce the ability of light to exit through the liquid crystal at the fifth strip electrode 1115, and even form a local black domain region at the position of the fifth strip electrode 1115.

[0092] Thus, when a large-angle light beam emitted from the pixel electrode 11 passes through the third sub-region Q13 and enters the edge region of the adjacent pixel electrode 11, the liquid crystal efficiency at the fifth strip electrode 1115 of the adjacent pixel electrode 11 decreases, reducing the light transmission capability. This helps to reduce the possibility of large-angle light beams entering the adjacent pixel electrode 11 from the third sub-region Q13 exiting through the liquid crystal at the edge of the adjacent pixel electrode 11, thereby helping to improve the local large viewing angle color shift problem of the display panel 01.

[0093] It should be noted that, in this application, the structural limitations of the first type of sub-strip electrode 111A in the above embodiments also apply to the third type of sub-strip structure 111C, and the structural limitations of the second type of sub-strip electrode 111B in the above embodiments also apply to the fourth type of sub-strip structure 111D.

[0094] Optional, such as Figure 2 , Figure 3 and Figure 5B As shown, in the same pixel electrode 11, at least a portion of the fifth strip electrode 1115 has the same structure as the second strip electrode 1112. Here, "same structure" means that the fifth strip electrode 1115 and the second strip electrode 1112 have the same length and the same tilt angle relative to the first direction Y.

[0095] This configuration helps to reduce the structural complexity of the pixel electrode 11 and the difficulty of fabricating the pixel electrode 11.

[0096] Optional, such as Figures 10A-10C As shown, the structure of at least a portion of the fifth strip electrode 1115 is different from the structure of the second strip electrode 1112. That is, the length of at least a portion of the fifth strip electrode 1115 is different from the length of the second strip electrode 1112, and / or the tilt angle of the fifth strip electrode 1115 relative to the first direction Y is different from the tilt angle of the second strip electrode 1112 relative to the first direction Y.

[0097] This arrangement helps to increase the structural diversity of the pixel electrode 11, and also allows for flexible configuration of the structure of the fifth strip electrode 1115 and the second strip electrode 1112 according to actual needs, thereby improving the flexibility of the pixel electrode 11 configuration.

[0098] Figure 12 This is a schematic diagram of a display device provided in an embodiment of this application.

[0099] This application provides a display device 02, such as... Figure 12 As shown, it includes the display panel 01 provided in the above embodiments. For example, the display device 02 can be an electronic device such as a mobile phone, computer, television, vehicle display, or wearable display. This application does not impose specific limitations.

[0100] In the display device 02, the structure of the second strip electrode 1112 in the first type of sub-strip electrode 111A is different from the structure of the third strip electrode 1113 in the second type of sub-strip electrode 111B. This makes it possible for the electric field at the second strip electrode 1112 to be different from the electric field at the third strip electrode 1113. As a result, the efficiency of controlling the rotation of the liquid crystal can be reduced by setting the electric field at the second strip electrode 1112, reducing the ability of light to be emitted from the liquid crystal at the second strip electrode 1112, and even forming a local black domain region at the position of the second strip electrode 1112.

[0101] Thus, when a large-angle light beam emitted from the pixel electrode 11 passes through the second sub-region Q12 and enters the edge region of the adjacent pixel electrode 11, the liquid crystal efficiency at the second strip electrode 1112 of the adjacent pixel electrode 11 decreases, reducing the light transmission capability. This helps to reduce the possibility of large-angle light beams entering the adjacent pixel electrode 11 from the second sub-region Q12 exiting through the liquid crystal at the edge of the adjacent pixel electrode 11, thereby helping to improve the local large viewing angle color shift problem of the display panel 01.

[0102] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display panel, characterized in that, It includes a first substrate, a second substrate, and a liquid crystal layer, wherein the first substrate and the second substrate are disposed opposite to each other, and the liquid crystal layer is located between the first substrate and the second substrate; The first substrate includes a pixel electrode and a first metal layer. The first metal layer includes a plurality of first traces and second traces, and at least a portion of the first traces and second traces are located between two adjacent pixel electrodes. The pixel electrode includes a first part and a second part in a first direction. The first part includes a plurality of first strip electrodes arranged along a second direction, and the second part includes a plurality of second strip electrodes arranged along the second direction. The first direction and the second direction intersect. The extension length of the second trace in the first direction is less than the extension length of the pixel electrode in the first direction. In the second direction, a first interval region is provided between two adjacent pixel electrodes. The first interval region includes a first sub-region and a second sub-region. The second trace is located in the first sub-region but not in the second sub-region. The plurality of first strip electrodes include at least a first type of sub-strip electrode and a second type of sub-strip electrode, wherein the first type of sub-strip electrode is adjacent to the second trace, and the second type of sub-strip electrode is located on the side of the first type of sub-strip electrode away from the second trace; The first type of sub-strip electrode includes a first strip electrode and a second strip electrode, and the second type of sub-strip electrode includes the first strip electrode and a third strip electrode. In the second direction, the projection of the second strip electrode at least partially overlaps with the projection of the second sub-region. The structure of the second strip electrode is different from that of the third strip electrode.

2. The display panel according to claim 1, characterized in that, The tilt angle of the second strip electrode relative to the first direction is different from that of the third strip electrode relative to the first direction.

3. The display panel according to claim 2, characterized in that, The angle between the second strip electrode and the first direction is 1. The angle between the third strip electrode and the first direction is . 2; in, 1 < 2.

4. The display panel according to claim 3, characterized in that, In the first strip electrode, the angle between the first strip electrode and the first direction is . 3, 3< 2.

5. The display panel according to claim 4, characterized in that, 1≥ 3。 6. The display panel according to claim 5, characterized in that, The first type of sub-strip electrode includes a first side sub-strip electrode and a second side sub-strip electrode, which are respectively adjacent to the second traces on opposite sides of the pixel electrode; In the first side strip electrode, the angle between the second branch strip electrode and the first direction is...

11. In the second side strip electrode, the angle between the second strip electrode and the first direction is... 12; in, 11≠ 12.

7. The display panel according to claim 6, characterized in that, 11＞ 3， 12= 3。 8. The display panel according to claim 4, characterized in that, 1＜ 3。 9. The display panel according to claim 8, characterized in that, 1=0°。 10. The display panel according to claim 1, characterized in that, The length of the first type of sub-strip electrode in the first direction is not less than the length of the second type of sub-strip electrode in the first direction; The length of the second strip electrode in the first direction is greater than the length of the third strip electrode in the first direction.

11. The display panel according to claim 1 or 2, characterized in that, The length of the first type of sub-strip electrode in the first direction is less than the length of the second type of sub-strip electrode in the first direction.

12. The display panel according to claim 1, characterized in that, The same first interval region also includes a third sub-region, the third sub-region and the second sub-region being located on opposite sides of the first sub-region, and the second trace is not located in the third sub-region; The plurality of second strip electrodes include a third type of sub-strip electrode and a fourth type of sub-strip electrode, wherein the third type of sub-strip electrode is adjacent to the second trace, and the fourth type of sub-strip electrode is located on the side of the third type of sub-strip electrode away from the second trace; The third type of sub-strip electrode includes a fourth strip electrode and a fifth strip electrode, and the fourth type of sub-strip electrode includes the fourth strip electrode and a sixth strip electrode. In the second direction, the projection of the fifth strip electrode at least partially overlaps with the projection of the third sub-region. The structure of the fifth strip electrode is different from that of the sixth strip electrode.

13. The display panel according to claim 12, characterized in that, The structure of at least part of the fifth strip electrode is the same as that of the second strip electrode.

14. The display panel according to claim 12, characterized in that, The structure of at least part of the fifth strip electrode is different from that of the second strip electrode.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1-14.

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