Display panel and display device

Abstract

This application discloses a display panel and a display device; wherein, a first electrode layer includes a plurality of first electrodes disposed in a plurality of pixel regions, each first electrode including a plurality of branches arranged along a first direction and extending along a second direction, the first and second directions intersecting; a second electrode layer is disposed on one side of the first electrode layer and includes a plurality of second electrodes disposed in the plurality of pixel regions, wherein in the same pixel region, the second electrodes are located on one side of the first electrodes along the thickness direction of the display panel; in the same pixel region, the plurality of branches include two first branches and at least one second branch located between the two first branches, the two first branches being located outside the plurality of branches in the first direction, and the width of the first branch along the first direction being smaller than the width of the second branch along the first direction; this application can reduce the probability of dark areas being generated in the display panel and improve the display effect of the display panel.

Description

Technical Field

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

[0002] Transmittance is a key parameter for LCD panels. As LCD panels continue to develop, consumers are demanding higher brightness from LCD products. Transmittance directly affects screen brightness; higher transmittance allows the screen to be brighter under the same backlight brightness, thereby improving product competitiveness.

[0003] Currently, in the pixel design of traditional In-Plane Switching (IPS) / High Tr% Field Switching (HFS) technology, an electric field is usually formed between the pixel electrode and the common electrode to drive the deflection of the liquid crystal; and the setting of a slit between the pixel electrode / common electrode and the size design of the slit are key parameters affecting transmission.

[0004] However, at the edge of the electrode, the alignment of the pixel electrode and the common electrode is different from that in the middle, which causes differences in the emission and reception of electric field lines, making it easy to generate an edge electric field, which in turn causes dark areas to appear on the display panel. Summary of the Invention

[0005] This application provides a display panel and display device that can increase the number of effective electric field lines between the first electrode and the second electrode, reduce the number of edge electric fields, and reduce the area of ​​the dark area in the display panel.

[0006] This application embodiment provides a display panel, the display panel including a plurality of pixel areas, the display panel further including:

[0007] A first electrode layer includes a plurality of first electrodes disposed in a plurality of pixel regions. Each first electrode includes a plurality of branches, and the plurality of branches are arranged along a first direction. The branches extend along a second direction, and the first direction and the second direction intersect each other. The second electrode layer is disposed on one side of the first electrode layer and includes a plurality of second electrodes disposed in a plurality of pixel regions. In the same pixel region, the second electrodes are located on one side of the first electrode along the thickness direction of the display panel. Within the same pixel region, the plurality of branches include two first branches and at least one second branch located between the two first branches. The two first branches are located outside the plurality of branches in the first direction, and the width of the first branch in the first direction is smaller than the width of the second branch in the first direction.

[0008] In one embodiment of this application, the first electrode further includes a main body portion, which is arranged to surround the periphery of the pixel area. A plurality of branch portions are located within the enclosed area of ​​the main body portion, and the two ends of the branch portions are connected to the main body portion along the second direction.

[0009] In one embodiment of this application, a first gap is formed between the first branch and the main body along the first direction, and a second gap is formed between the first branch and the second branch along the first direction. Within the same pixel area, the orthogonal projection of the second electrode onto the first electrode layer covers the second gap and a portion of the first gap.

[0010] In one embodiment of this application, the width of the first gap along the first direction is greater than the width of the second gap along the first direction.

[0011] In one embodiment of this application, the absolute value of the difference between the width of the first gap along the first direction and the width of the second gap along the first direction is greater than 0 micrometers and less than or equal to 0.2 micrometers.

[0012] In one embodiment of this application, the main body includes two first sub-parts disposed opposite to each other along the first direction and two second sub-parts disposed opposite to each other along the second direction. Within the same pixel area, the second electrode and the first sub-parts do not overlap along the thickness direction of the display panel, and the second electrode and the second sub-parts partially overlap along the thickness direction of the display panel.

[0013] In one embodiment of this application, the absolute value of the difference between the width of the first branch along the first direction and the width of the second branch along the first direction is greater than 0 micrometers and less than or equal to 0.2 micrometers.

[0014] In one embodiment of this application, the display panel further includes multiple data lines and thin-film transistors, the thin-film transistors being electrically connected to the data lines and the second electrode, and the data lines located between two adjacent pixel areas being parallel to the second direction.

[0015] In one embodiment of this application, the display panel further includes: A first substrate, wherein the second electrode layer is disposed on one side of the first substrate, and the first electrode layer is disposed on the side of the second electrode layer away from the first substrate; The second substrate is disposed on the side of the first electrode layer away from the second electrode layer; A liquid crystal layer is disposed between the first electrode layer and the second substrate.

[0016] In accordance with the above-mentioned objectives of this application, embodiments of this application also provide a display device, the display device including the display panel as described above.

[0017] This application provides a display panel and display device. By making the width of the first branch located on the outer side of the first electrode smaller than the width of the second branch located on the inner side, the receiving efficiency of the electric field lines at the edge position of the first electrode and the second electrode is higher, and the number of effective electric field lines between the first electrode and the second electrode is increased, thereby improving the light emission efficiency and transmittance of the display panel. This can reduce the number of edge electric fields, reduce the area of ​​the dark area in the display panel, and improve the display effect of the display panel.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] 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 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.

[0020] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0021] Figure 1 A film layer stacking pattern of a display panel provided in an embodiment of this application; Figure 2 This is a schematic diagram of a planar distribution of a display panel provided in an embodiment of this application; Figure 3 A film layer stack diagram of a gate layer, semiconductor layer and conductive layer in a display panel provided in an embodiment of this application; Figure 4 This is a schematic cross-sectional view of a display panel provided in an embodiment of this application; Figure 5 A schematic diagram of another cross-sectional structure of the display panel provided in an embodiment of this application; Figure 6 A film layer stack diagram of a gate layer, semiconductor layer, conductive layer and first electrode layer in a display panel provided in an embodiment of this application; Figure 7 A film layer stack diagram of a gate layer, semiconductor layer, conductive layer and second electrode layer in a display panel provided in an embodiment of this application; Figure 8 A schematic diagram of the structure of the first electrode layer and the second electrode layer provided in an embodiment of this application; Figure 9 A schematic diagram of a stacked structure of the first electrode layer and the second electrode layer provided in an embodiment of this application; Figure 10 This is a schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0022] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0023] Please refer to Figure 1 and Figure 2 This application provides a display panel, which includes a plurality of pixel areas 101 and a first electrode layer 10 and a second electrode layer 20.

[0024] The first electrode layer 10 includes a plurality of first electrodes 11 disposed in a plurality of pixel regions 101. Each first electrode 11 includes a plurality of branches 12, and the plurality of branches 12 are arranged along a first direction M and extend along a second direction N. The first direction M and the second direction N intersect.

[0025] The second electrode layer 20 is disposed on one side of the first electrode layer 10 and includes a plurality of second electrodes 21 disposed in a plurality of pixel regions 101. In the same pixel region 101, the second electrodes 21 are located on one side of the first electrode 11 along the thickness direction of the display panel.

[0026] Within the same pixel area 101, the plurality of branches 12 include two first branches 121 and at least one second branch 122 located between the two first branches 121. The two first branches 121 are located outside the plurality of branches 12 in the first direction M, and the width of the first branch 121 in the first direction M is smaller than the width of the second branch 122 in the first direction M.

[0027] In the implementation process, the embodiments of this application make the width of the first branch 121 located on the outer side of the first electrode 11 smaller than the width of the second branch 122 located on the inner side, so that the receiving efficiency of the electric field lines of the first electrode 11 and the second electrode 21 at the edge position is higher, and the number of effective electric field lines between the first electrode 11 and the second electrode 21 is greater, thereby improving the light emission efficiency and transmittance of the display panel, and thus reducing the number of edge electric fields, reducing the area of ​​dark areas in the display panel, and improving the display effect of the display panel.

[0028] Specifically, please refer to Figure 1 , Figure 2 and Figure 3 The display panel provided in this application embodiment includes a display area AA and a non-display area NA located on at least one side of the display area AA; wherein, the non-display area NA can be set around the display area AA, that is, the non-display area NA can be the border area of ​​the display area AA.

[0029] In some embodiments, the display area AA may include a plurality of pixel areas 101, and the plurality of pixel areas 101 may be arranged in an array along the third direction X and the fourth direction Y; wherein the third direction X and the fourth direction Y intersect; further, the third direction X and the fourth direction Y are perpendicular to each other.

[0030] The display panel includes multiple scan lines 31 and multiple data lines 51 extending into the display area AA, and the multiple scan lines 31 and multiple data lines 51 are arranged in a cross pattern to define multiple pixel areas 101; for example, the multiple scan lines 31 are arranged along the fourth direction Y and extend along the third direction X, and the multiple data lines 51 are arranged along the third direction X and arranged along the fourth direction Y.

[0031] Next, the film structure of the display panel will be described in the embodiments of this application.

[0032] Please refer to Figure 1 , Figure 2 as well as Figure 4 The display panel includes a substrate 61 and a device layer disposed on the substrate 61.

[0033] In some embodiments, the substrate 61 can be a rigid substrate or a flexible substrate, and the material of the substrate 61 can be glass or organic resin material, without specific limitations.

[0034] In some embodiments, the device layer includes a gate layer 30 disposed on a substrate 61, a first insulating layer 62 disposed on the substrate 61 and covering the gate layer 30, a semiconductor layer 40 disposed on the first insulating layer 62, a conductive layer 50 disposed on the semiconductor layer 40, a second electrode layer 20 disposed on the first insulating layer 62, a second insulating layer 63 disposed on the first insulating layer 62 and covering the semiconductor layer 40, the conductive layer 50 and the second electrode layer 20, and a first electrode layer 10 disposed on the second insulating layer 63.

[0035] In some embodiments, the gate layer 30 may include a scan line 31, a gate, and a common signal line 32 disposed on the substrate 61; the semiconductor layer 40 includes an active layer 41 disposed on the side of the first insulating layer 62 away from the gate; the conductive layer 50 includes a source and a drain 52 disposed on the active layer 41, and the source and drain 52 are respectively connected to opposite sides of the channel of the active layer 41.

[0036] It should be noted that the portion of the scan line 31 that overlaps with the active layer 41 can be reused as the gate of the thin-film transistor. The gate, active layer 41, source, and drain 52 together constitute the thin-film transistor. The source and drain 52 can be regarded as electrodes of the thin-film transistor that connect to other signals or traces. The only difference is in the name. The positions of the source and drain 52 can be interchanged.

[0037] In some embodiments, the conductive layer 50 further includes a data line 51, and the portion of the data line 51 located on the side of the active layer 41 away from the gate can be reused as the source of a thin-film transistor.

[0038] In some embodiments, the second electrode layer 20 is disposed on the first insulating layer 62, and the second electrode layer 20 includes second electrodes 21 disposed in a plurality of pixel regions 101, for example, a plurality of second electrodes 21 are disposed one-to-one in a plurality of pixel regions 101.

[0039] Within the same pixel area 101, a thin-film transistor and a second electrode 21 can be disposed, and the thin-film transistor is electrically connected to the data line 51 and the second electrode 21; specifically, the source of the thin-film transistor is connected to the data line 51, the gate of the thin-film transistor is connected to the scan line 31, and the drain of the thin-film transistor 52 is connected to the second electrode 21.

[0040] In some embodiments, the first electrode layer 10 is disposed on the second insulating layer 63, and the second electrode layer 20 includes a plurality of first electrodes 11 disposed in a plurality of pixel regions 101; for example, the plurality of first electrodes 11 are disposed one-to-one in the plurality of pixel regions 101.

[0041] Within the same pixel area 101, a thin-film transistor, a second electrode 21, and a first electrode 11 can be disposed, and the first electrode 11 is located on one side of the second electrode 21 along the thickness direction of the display panel.

[0042] Please refer to Figure 1 and Figure 5 The display panel provided in this application embodiment can be a liquid crystal display panel, and the display panel further includes a second substrate 70 and a liquid crystal layer 80. The second substrate 70 is disposed on the side of the first electrode layer 10 away from the second electrode layer 20; the liquid crystal layer 80 is disposed between the first electrode layer 10 and the second substrate 70.

[0043] It is understood that the first electrode 11 can be a common electrode disposed in each pixel area 101, and the second electrode 21 can be a pixel electrode disposed in each pixel area 101; wherein, in each pixel area 101, an electric field can be formed between the first electrode 11 and the second electrode 21 to drive the liquid crystal molecules in the liquid crystal layer 80 in each pixel area 101 to deflect.

[0044] In some embodiments, the gate layer 30 further includes a common signal line 32 disposed on the substrate 61, and the first electrode 11 overlaps with the common signal line 32 through a via passing through the second insulating layer 63 and a portion of the first insulating layer 62, and the portion of the first electrode 11 that overlaps with the common signal line 32 may be the main body portion 13.

[0045] It should be noted that at the edge of the first electrode 11 and the second electrode 21, the alignment of the first electrode 11 and the second electrode 21 is different from that at the middle position. For example, the overlap area and shape are different, which leads to differences in the emission and reception of electric field lines and the distribution of electric field. This can easily generate an edge electric field, which in turn causes dark areas to appear on the display panel.

[0046] In this embodiment, the first electrode 11 includes a plurality of branches 12, which are arranged along a first direction M and extend along a second direction N, intersecting the first direction M and the second direction N. Within the same pixel region 101, the plurality of branches 12 include two first branches 121 and at least one second branch 122 located between the two first branches 121. The two first branches 121 are located outside the plurality of branches 12 in the first direction M, and the width of the first branch 121 along the first direction M is smaller than the width of the second branch 122 along the first direction M. This embodiment makes the width of the first branch 121 located on the outer side of the first electrode 11 smaller than the width of the second branch 122 located on the inner side, thereby increasing the receiving efficiency of electric field lines at the edge positions of the first electrode 11 and the second electrode 21, and increasing the number of effective electric field lines between the first electrode 11 and the second electrode 21. This reduces the number of edge electric fields, decreases the area of ​​dark areas in the display panel, and improves the display effect of the display panel.

[0047] In some embodiments, the first direction M and the second direction N are perpendicular to each other, and the first direction M is deflected relative to the third direction X, and the angle between the first direction M and the third direction X may be acute; in addition, the second direction N is deflected relative to the fourth direction Y, and the angle between the second direction N and the fourth direction Y may be acute.

[0048] In some embodiments, please refer to Figure 1 , Figure 5 as well as Figure 6 The first electrode 11 also includes a main body 13, which is arranged around the periphery of the pixel area 101. Multiple branches 12 are located within the enclosed area of ​​the main body 13, and both ends of the branches 12 are connected to the main body 13 along the second direction N. That is, the multiple branches 12 are arranged along the first direction M within the enclosed area of ​​the main body 13, and the first branch 121 is located on the outermost side of the multiple branches 12 along the first direction N.

[0049] In some embodiments, the multiple branches 12 are spaced apart along the first direction M, and the branches 12 and the main body 13 are also spaced apart along the first direction M; wherein, the first branch 121 and the main body 13 have a first gap 14 along the first direction M, and the first branch 121 and the second branch 122 have a second gap 15 along the first direction M. Within the same pixel area 101, the orthogonal projection of the second electrode 21 on the first electrode layer 10 covers the second gap 15 and part of the first gap 14; that is, the second electrode 21 has an overlapping portion with the first electrode 11, and the second electrode 21 can completely cover the second gap 15, but the second electrode 21 can only cover part of the first gap 14.

[0050] Understandably, please refer to Figure 1 , Figure 5 , Figure 6 as well as Figure 7 Within the same pixel area 101, the second electrode 21 can be a whole, and the orthographic projection of the second electrode 21 on the first electrode layer 10 extends from the center position of the first electrode 11 in the corresponding pixel area 101 toward the edge of the pixel area 101. Along the first direction M, the orthographic projection of the second electrode 21 on the first electrode layer 10 covers the second gap 15 and extends to the first gap 14, but does not completely cover the first gap 14.

[0051] On the other hand, the main body 13 includes two first sub-parts 131 disposed opposite to each other along the first direction M and two second sub-parts 132 disposed opposite to each other along the second direction N. Within the same pixel area 101, the second electrode 21 and the first sub-part 131 do not overlap along the thickness direction of the display panel, while the second electrode 21 and the second sub-part 132 partially overlap along the thickness direction of the display panel.

[0052] Please refer to Figure 1 , Figure 2 , Figure 5 as well as Figure 8 An electric field is formed between the first electrode 11 and the second electrode 21. The first electrode 11 can be a common electrode, while the second electrode 21 can be a pixel electrode. The second electrode 21 can be used to emit electric field lines, while the first electrode 11 can be used to receive electric field lines, so as to form an effective electric field to control the deflection of liquid crystal molecules 81 in the liquid crystal layer 80.

[0053] In some embodiments, the first electrodes 11 in two adjacent pixel regions 101 along the third direction X can be connected or spaced apart; specifically, the conductive layer 50 also includes a touch signal line 53, which extends along the fourth direction Y and is located between two adjacent pixel regions 101 along the third direction X, and is adjacent to the data line 51.

[0054] The conductive layer 50 may include a plurality of touch signal lines 53 arranged along a third direction X. At least one column of pixel areas 101 arranged along the third direction X may be spaced between two adjacent touch signal lines 53, and one column of pixel areas 101 is the plurality of pixel areas 101 arranged along the fourth direction Y. Therefore, when no touch signal line 53 is provided between two adjacent pixel areas 101 along the third direction X, the first electrodes 11 in the two adjacent pixel areas 101 are connected. When a touch signal line 53 is provided between two adjacent pixel areas 101 along the third direction X, the first electrodes 11 in the two adjacent pixel areas 101 are spaced apart. The touch signal lines 53 and the first electrodes 11 do not overlap along the thickness direction of the display panel to reduce the probability of signal interference between the touch signal lines 53 and the first electrodes 11.

[0055] It should be noted that both the data line 51 and the touch signal line 53 extend along the fourth direction Y. They can be considered as extending along the fourth direction Y as a whole. In some parts of the data line 51 and the touch signal line 53, they can be deviated relative to the fourth direction Y, for example, extending in a zigzag shape along the fourth direction Y. Among them, the data line 51 located between two adjacent pixel areas 101 is parallel to the second direction N.

[0056] In this embodiment, since the orthographic projection of the second electrode 21 on the first electrode layer 10 covers the second gap 15 and extends to the first gap 14 without completely covering the first gap 14, the area of ​​the second gap 15 overlapping with the second electrode 21 along the thickness direction of the display panel is greater than the area of ​​the first gap 14 overlapping with the second electrode 21 along the thickness direction of the display panel. This results in insufficient electric field lines emitted by the second electrode 21 at the edge, i.e., insufficient electric field lines emitted at the first gap 14, and a mismatch with the electric field lines that the first branch 121 can receive. Consequently, the effective electric field formed between the first electrode 11 and the second electrode 21 is less, and an edge electric field is easily generated. This causes the liquid crystal molecules in the liquid crystal layer 80 at the edge of the display panel to be unable to be effectively deflected, i.e., unable to be effectively driven to the open state, which in turn causes dark areas to be generated in the display panel, resulting in uneven display.

[0057] In this embodiment, by reducing the width of the first branch 121, the ability of the first branch 121 to receive electric field lines is reduced. This makes the ability of the first branch 121 to receive electric field lines match the electric field lines emitted at the first gap 14, improving the efficiency of the first branch 121 in receiving electric field lines. This, in turn, increases the effective electric field formed between the first electrode 11 and the second electrode 21, reduces the formation of edge electric fields, lowers the probability of dark areas appearing on the display panel, and improves the display effect. Simultaneously, by reducing the width of the first branch 121 in this embodiment, it is possible to... By causing the first branch 121 to retract inward toward the center of the pixel area 101, the first gap 14 is increased, and the width of the first gap 14 along the first direction M is greater than the width of the second gap 15 along the first direction M. This can improve the electric field lines emitted at the first gap 14, increase the efficiency of the first branch 121 in receiving electric field lines, and further increase the effective electric field formed between the first electrode 11 and the second electrode 21, reduce the formation of edge electric fields, reduce the area and probability of dark areas generated in the display panel, improve the transmittance of the display panel, and improve the display effect of the display panel.

[0058] Please refer to Figure 1 , Figure 8 as well as Figure 9 In some embodiments, the absolute value of the difference between the width L1 of the first branch 121 along the first direction M and the width L2 of the second branch 122 along the first direction M is greater than 0 micrometers and less than or equal to 0.2 micrometers, for example, it can be 0.1 micrometers, 0.15 micrometers or 0.2 micrometers.

[0059] In some embodiments, the width L1 of the first branch 121 along the first direction M can be greater than or equal to 1.8 micrometers and less than 2 micrometers, for example, it can be 1.8 micrometers, 1.9 micrometers or 1.95 micrometers; the width L2 of the second branch 122 along the first direction M can be less than or equal to 2 micrometers.

[0060] In some embodiments, the absolute value of the difference between the width S1 of the first gap 14 along the first direction M and the width S2 of the second gap 15 along the first direction M is greater than 0 micrometers and less than or equal to 0.2 micrometers, for example, it can be 0.1 micrometers, 0.15 micrometers or 0.2 micrometers.

[0061] In some embodiments, the width S1 of the first gap 14 along the first direction M can be greater than 3.94 micrometers and less than or equal to 4.14 micrometers, for example, it can be 3.95 micrometers, 4 micrometers, or 4.14 micrometers; the width S2 of the second gap 15 along the first direction M can be greater than or equal to 3.94 micrometers.

[0062] In summary, by making the width of the first branch 121 located on the outer side of the first electrode 11 smaller than the width of the second branch 122 located on the inner side, the receiving efficiency of the electric field lines of the first electrode 11 and the second electrode 21 at the edge position is higher, and the number of effective electric field lines between the first electrode 11 and the second electrode 21 is increased, thereby improving the light emission efficiency and transmittance of the display panel. This can reduce the number of edge electric fields, reduce the area of ​​dark areas in the display panel, and improve the display effect of the display panel.

[0063] Additionally, refer to Figure 10 This application embodiment also provides a display device 90, which includes the display panel 91 as described above.

[0064] In some embodiments, the display device 90 further includes a backlight module 92, and the display panel 91 is disposed on the light-emitting side of the backlight module 92, wherein the backlight module 92 can provide a backlight source for the display panel 91.

[0065] In some embodiments, the display device 90 may be a mobile phone, television, tablet, computer, wearable device, or virtual reality device, etc.

[0066] It is understood that since the display device 90 has the same display panel 91 as the above embodiment, the display device 90 has the same beneficial effects as the display panel 91, which will not be repeated here.

[0067] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0068] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0069] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0070] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display panel, characterized in that, The display panel includes multiple pixel areas, and the display panel further includes: A first electrode layer includes a plurality of first electrodes disposed in a plurality of pixel regions. Each first electrode includes a plurality of branches, and the plurality of branches are arranged along a first direction. The branches extend along a second direction, and the first direction and the second direction intersect each other. The second electrode layer is disposed on one side of the first electrode layer and includes a plurality of second electrodes disposed in a plurality of pixel regions. In the same pixel region, the second electrodes are located on one side of the first electrode along the thickness direction of the display panel. Within the same pixel region, the plurality of branches include two first branches and at least one second branch located between the two first branches. The two first branches are located outside the plurality of branches in the first direction, and the width of the first branch in the first direction is smaller than the width of the second branch in the first direction.

2. The display panel according to claim 1, characterized in that, The first electrode further includes a main body portion, which is arranged around the periphery of the pixel area. A plurality of branch portions are located within the enclosed area of ​​the main body portion, and the two ends of the branch portions are connected to the main body portion along the second direction.

3. The display panel according to claim 2, characterized in that, A first gap exists between the first branch and the main body along the first direction, and a second gap exists between the first branch and the second branch along the first direction. Within the same pixel area, the orthogonal projection of the second electrode onto the first electrode layer covers the second gap and a portion of the first gap.

4. The display panel according to claim 3, characterized in that, The width of the first gap along the first direction is greater than the width of the second gap along the first direction.

5. The display panel according to claim 3, characterized in that, The absolute value of the difference between the width of the first gap along the first direction and the width of the second gap along the first direction is greater than 0 micrometers and less than or equal to 0.2 micrometers.

6. The display panel according to claim 2, characterized in that, The main body includes two first sub-parts disposed opposite to each other along the first direction and two second sub-parts disposed opposite to each other along the second direction. Within the same pixel area, the second electrode and the first sub-parts do not overlap along the thickness direction of the display panel, while the second electrode and the second sub-parts partially overlap along the thickness direction of the display panel.

7. The display panel according to claim 1, characterized in that, The absolute value of the difference between the width of the first branch along the first direction and the width of the second branch along the first direction is greater than 0 micrometers and less than or equal to 0.2 micrometers.

8. The display panel according to any one of claims 1 to 7, characterized in that, The display panel also includes multiple data lines and thin-film transistors, the thin-film transistors being electrically connected to the data lines and the second electrode, and the data lines located between two adjacent pixel areas being parallel to the second direction.

9. The display panel according to any one of claims 1 to 7, characterized in that, The display panel also includes: A first substrate, wherein the second electrode layer is disposed on one side of the first substrate, and the first electrode layer is disposed on the side of the second electrode layer away from the first substrate; The second substrate is disposed on the side of the first electrode layer away from the second electrode layer; A liquid crystal layer is disposed between the first electrode layer and the second substrate.

10. A display device, characterized in that, The display device includes a display panel as described in any one of claims 1 to 9.

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