Display panel and display device

Abstract

The embodiment of the utility model provides a display panel and a display device, the display panel comprises a display area and a non-display area, the non-display area surrounds at least part of the display area, the non-display area comprises a first non-display area, a fillet area and a second non-display area, the fillet area is located between the first non-display area and the second non-display area, and the fillet area is located between the first non-display area and the second non-display area. The first non-display area and the second non-display area are both connected with the fillet area; the display panel comprises a scanning driving circuit, the scanning driving circuit comprises a plurality of shift register units, the plurality of shift register units comprise a plurality of first-class shift register units and a plurality of second-class shift register units, the first-class shift register units are located in a first non-display area, and the second-class shift register units are located in a fillet area; wherein in the fillet area, the step lengths of at least part of the second type of shift register units are different. The width of the rounded corner area can be reduced, and the width of the rounded corner area and the width of the first non-display area tend to be consistent.

Description

Technical Field

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

[0002] In a display panel, a rounded corner border connected to a straight-edge border is usually provided to improve the aesthetics of the display panel. However, in the prior art, the width of the rounded corner border is usually larger than that of the straight-edge border, which is not conducive to the implementation of a narrow border and also affects the aesthetics of the display panel. Therefore, a solution is urgently needed. Summary of the Utility Model

[0003] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.

[0004] In a first aspect, an embodiment of this application provides a display panel, including a display area and a non-display area. The non-display area surrounds at least part of the display area. The non-display area includes a first non-display area, a rounded corner area, and a second non-display area. The rounded corner area is located between the first non-display area and the second non-display area. Both the first non-display area and the second non-display area are connected to the rounded corner area. The display panel includes a scan driving circuit, and the scan driving circuit includes a plurality of shift register units. The plurality of shift register units include a plurality of first-type shift register units and a plurality of second-type shift register units. The first-type shift register units are located in the first non-display area, and the second-type shift register units are located in the rounded corner area. Among them, in the rounded corner area, the step lengths of at least some of the second-type shift register units are different.

[0005] In a second aspect, an embodiment of this application provides a display device, including the display panel provided in the first aspect.

[0006] In the embodiments of this application, by setting the step lengths of at least some of the second-type shift register units to be different, in the rounded corner area, the step lengths of the second-type shift register units can be flexibly adjusted according to the pixel row positions to which the second-type shift register units are to be electrically connected, so that the second-type shift register units are arranged in alignment with the pixel rows to which they are electrically connected. This is conducive to reducing the length of the connection traces between the second-type shift register units and the pixel rows to which they are electrically connected, reducing the space occupied by the connection traces, and further conducive to reducing the width of the rounded corner area, making it possible for the width of the rounded corner area to be consistent with the width of the first non-display area. This is both conducive to the implementation of a narrow border of the display panel and conducive to increasing the aesthetics of the display panel. Description of the Drawings

[0007] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1 A schematic plan view of a display panel provided by an embodiment of the present application;

[0009] Figure 2 For Figure 1 An enlarged schematic view of a rounded corner area in

[0010] Figure 3 For Figure 1 Another enlarged schematic view of the rounded corner area in

[0011] Figure 4 A partial enlarged schematic view of a display panel in the prior art;

[0012] Figure 5 For Figure 1 Another enlarged schematic view of the rounded corner area in

[0013] Figure 6 For Figure 1 Another enlarged schematic view of the rounded corner area in

[0014] Figure 7 For Figure 1 Another enlarged schematic view of the rounded corner area in

[0015] Figure 8 For Figure 1 Another enlarged schematic view of the rounded corner area in

[0016] Figure 9 Another schematic plan view of a display panel provided by an embodiment of the present application;

[0017] Figure 10 For Figure 9 A partial enlarged schematic view of the rounded corner area in

[0018] Figure 11 An enlarged schematic view of a rounded corner area provided by an embodiment of the present application;

[0019] Figure 12 For Figure 11 A cross-sectional schematic view along the tangent NN' in

[0020] Figure 13 Another enlarged schematic view of a rounded corner area provided by an embodiment of the present application;

[0021] Figure 14Another enlarged schematic view of the rounded corner area provided by the embodiment of the present application;

[0022] Figure 15 A schematic diagram of a display device provided by the embodiment of the present application. Detailed implementation manners

[0023] For a better understanding of the technical solution of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0025] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0026] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, a and / or b can represent: a exists alone, a and b exist simultaneously, and b exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0027] Figure 1 A plan view of a display panel provided by the embodiment of the present application, Figure 2 is Figure 1 an enlarged schematic view of the rounded corner area in Figure 3 is Figure 1 another enlarged schematic view of the rounded corner area in

[0028] As Figure 1 shown, the embodiment of the present application provides a display panel 01, including a display area AA and a non-display area NA. The non-display area NA surrounds at least a part of the display area AA. Optionally, as Figure 1 shown, the display area AA is completely surrounded by the non-display area NA.

[0029] The non-display area NA includes a first non-display area NA1, a rounded corner area NR, and a second non-display area NA2. The rounded corner area NR is located between the first non-display area NA1 and the second non-display area NA2. Both the first non-display area NA1 and the second non-display area NA2 are connected to the rounded corner area NR.

[0030] Optionally, the first non-display area NA1 is the "left" border of the display panel 01, the second non-display area NA2 is the "lower" border of the display panel 01, and the first non-display area NA1 is a straight-edge border of the display panel 01. It should be noted that the display panel 01 may include 4 rounded corner areas NR, and here the rounded corner area NR between the "left" border and the "lower" border of the display panel 01 is schematically shown.

[0031] Please continue to refer to Figure 1 , the display panel 01 further includes a scan driving circuit 100. The scan driving circuit 100 includes a plurality of shift register units 11. Among the plurality of shift register units 11, there are a plurality of first-type shift register units 11A and a plurality of second-type shift register units 11B. The first-type shift register units 11A are located in the first non-display area NA1, and the second-type shift register units 11B are located in the rounded corner area NR.

[0032] The display area AA includes a plurality of pixel rows 200. Each pixel row 200 includes a plurality of sub-pixels 21 and a plurality of scan lines 22 ( Figure 1 only one scan line is schematically shown therein), the sub-pixels 21 and the scan lines 22 are electrically connected to each other, and the signals on the scan lines 22 can be used to control the turning on or off of the transistors in the sub-pixels 21. The shift register unit 11 is used to transmit signals to the scan lines 22.

[0033] As Figure 1 shown, the shift register unit 11 can be correspondingly electrically connected to the scan line 22 through a connection trace ZL. The connection trace ZL is located in the non-display area NA.

[0034] Among them, as Figure 2 and Figure 3 shown, in the rounded corner area NR, at least some of the second-type shift register units 11B have different step lengths. That is, in the rounded corner area NR, the second-type shift register units 11B can be set with non-uniform step lengths. In this application, the step length refers to the placement distance between two adjacent shift register units 11, including the spacing between the two adjacent shift register units 11 and the width of one shift register unit 11 in the arrangement direction of the two.

[0035] Exemplarily, as Figure 2 and Figure 3 shown, the rounded corner area NR includes a step length L1 and a step length L2, and the step length L1 and the step length L2 are different.

[0036] It should be noted that, as Figure 2 shown, in the rounded corner area NR, all the second-type shift register units 11B can be effective shift register units 101. The effective shift register units 101 are correspondingly electrically connected to the scan line 22 through the connection trace ZL and are used to transmit signals to the scan line 22.

[0037] AsFigure 3 As shown, in the rounded corner area NR, the second type of shift register unit 11B may include an effective shift register unit 101 and a virtual shift register unit 102. The effective shift register unit 101 is electrically connected to the scanning line 22 through a connection trace ZL, and the virtual shift register unit 102 is electrically insulated from the scanning line 22. The connection trace ZL may not be provided on the virtual shift register unit 102. When calculating the step size of the second type of shift register unit 11B in the rounded corner area NR, two adjacent second type of shift register units 11B may include the effective shift register unit 101, and / or the virtual shift register unit 102.

[0038] The inventors of the present application have found through research that in the existing display panel, such as Figure 4 shown Figure 4 is a partial enlarged schematic diagram of a display panel in the prior art. The shift register unit 11' in the rounded corner area NR' is usually set with an equal step size, which results in a large misalignment between the shift register unit 11' and the scanning line 22' in the display area AA' connected thereto. The connection trace ZL' between the two has a large number of winding lines and requires a large space, thus resulting in a large width of the rounded corner area NR'.

[0039] In view of this, in the embodiments of the present application, at least some of the second type of shift register units 11B are set with different step sizes. Then, in the rounded corner area NR, the step size of the second type of shift register unit 11B can be flexibly adjusted according to the position of the pixel row 200 to be electrically connected by the second type of shift register unit 11B, so as to enable the second type of shift register unit 11B to be aligned with the pixel row 200 to which it is electrically connected. This is beneficial to reducing the winding length of the connection trace ZL between the second type of shift register unit 11B and the pixel row 200 to which it is electrically connected, reducing the space occupied by the connection trace ZL, and further being beneficial to reducing the width of the rounded corner area NR, making it possible for the width of the rounded corner area NR to be consistent with the width of the first non-display area NA1. This is not only beneficial to achieving a narrow border of the display panel 01 but also beneficial to increasing the aesthetic degree of the display panel 01.

[0040] Optionally, in the rounded corner area NR, the distances between at least some adjacent second type of shift register units 11B are different. Here, the distance between two adjacent second type of shift register units 11B may refer to the minimum distance therebetween. When the structures of three adjacent second type of shift register units 11B are the same, the distances between two adjacent second type of shift register units 11B are different, and the step sizes are also different. When the structures of three adjacent second type of shift register units 11B are different (for example, when the widths of two adjacent second type of shift register units in their arrangement directions are different), the distances between two adjacent second type of shift register units 11B are different, and the step sizes may be the same.

[0041] Please continue to refer to Figure 1 , in the first non-display area NA1, multiple first-type shift register units 11A are arranged step by step.

[0042] It can be understood that since the pixel rows 200 in the display area AA are usually set at equal intervals, the arrangement direction of the first-type shift register units 11A in the first non-display area NA1 can be parallel to the arrangement direction of the pixel rows 200. Therefore, in the embodiments of the present application, the first-type shift register units 11A in the first non-display area NA1 are set with equal steps. On the one hand, it can make the first-type shift register units 11A and the pixel rows 200 be aligned; on the other hand, it can reduce the manufacturing difficulty of the first-type shift register units 11A and simplify the process.

[0043] Figure 5 For Figure 1 another enlarged schematic diagram of the rounded corner area.

[0044] In an embodiment of the present application, as Figure 5 shown, in the rounded corner area NR, among multiple second-type shift register units 11B, there are a first shift register unit 111 and a second shift register unit 112. The second shift register unit 112 is located on the side of the first shift register unit 111 close to the second non-display area NA2.

[0045] Exemplarily, the second shift register unit 112 is adjacent to the second non-display area NA2. That is, no other shift register units 11 are arranged between the second shift register unit 112 and the second non-display area NA2.

[0046] In the first direction h1, the width W1 of the first shift register unit 111 is different from the width W2 of the second shift register unit 112. The first direction h1 is the width direction of the rounded corner area NR. That is, the direction in which the rounded corner area NR points to the display area AA.

[0047] In the embodiments of the present application, by setting the width W1 of the first shift register unit 111 in the first direction h1 to be different from the width W2 of the second shift register unit 112 in the first direction h1, the widths of the two in the first direction h1 can be flexibly set according to the length of the connection trace ZL electrically connected to the first shift register unit 111 and the second shift register unit 112, so as to reserve more space for arranging the connection trace ZL. Thus, there is no need to increase the width of the rounded corner area NR for arranging the connection trace ZL, which is beneficial to further reducing the width of the rounded corner area NR and making the width of the rounded corner area NR tend to be the same as that of the first non-display area NA1.

[0048] Optionally, as Figure 5As shown, in the first direction h1, the width W1 of the first shift register unit 111 is greater than the width W2 of the second shift register unit 112.

[0049] In some cases, some other circuits, such as an electrostatic discharge circuit, may be provided between the rounded corner area NR and the second non-display area NA2. The alignment effect between the second shift register unit 112 and the pixel row 200 to which it is electrically connected may be poor, and the connection trace ZL electrically connected to the second shift register unit near the second non-display area NA2 has more winding.

[0050] Therefore, setting the width W2 of the second shift register unit 112 to be smaller in the first direction h1 is beneficial to reserve sufficient space for the connection trace ZL electrically connected to the second shift register unit 112, avoiding an additional increase in the width of the rounded corner area NR, and thus being beneficial to ensuring that the width of the rounded corner area NR is small.

[0051] Further, as Figure 6 shown, Figure 6 For Figure 1 another enlarged schematic diagram of the rounded corner area in, among the multiple second type shift register units 11B, a third shift register unit 113 is further included, and the third shift register unit 113 is located between the first shift register unit 111 and the second shift register unit 112.

[0052] In the first direction h1, the width W3 of the third shift register unit 113 is less than the width W1 of the first shift register unit 111 and greater than the width W2 of the second shift register unit 112.

[0053] The inventors of the present application have found through research that in the rounded corner area NR, along the direction from the first non-display area NA1 to the second non-display area NA2, the connection trace ZL electrically connected to the shift register unit 11 may show a gradually increasing winding situation.

[0054] In view of this, making the width of the third shift register unit 113 be between the width of the first shift register unit 111 and the width of the second shift register unit 112 is beneficial to reserve appropriate space for the connection trace ZL in each area of the rounded corner area NR. On the one hand, it is beneficial to avoid increasing the width of the rounded corner area NR due to insufficient reserved space; on the other hand, it is beneficial to avoid having a large blank area due to excessive reserved space, which affects the etching uniformity.

[0055] Please continue to refer to Figure 5 , in an embodiment of the present application, among the multiple second type shift register units 11B, a first shift register unit 111 and a second shift register unit 112 are included, and the second shift register unit 112 is located on the side of the first shift register unit 111 close to the second non-display area NA2;

[0056] Optionally, the width of the second shift register unit 112 in the first direction h1 is smaller than the width of the first shift register unit 111 in the first direction h1. The number of the second shift register units 112 is smaller than the number of the first shift register units 111.

[0057] Among the multiple first shift register units 111, at least some of the first shift register units 111 have different step lengths. For example, the step length L1 of the first shift register unit 111 is different from the step length L2 of the first shift register unit 111.

[0058] In the embodiment of the present application, by setting at least some of the first shift register units 111 to have different step lengths, in the rounded corner area NR, the step length of the first shift register unit 111 can be flexibly adjusted according to the position of the pixel row 200 to which the first shift register unit 111 is to be electrically connected, which is beneficial to improving the alignment ability between the first shift register unit 111 and the pixel row 200 to which it is electrically connected, thereby facilitating minimizing the routing length of the first shift register unit 111 and achieving a smaller width of the rounded corner area NR.

[0059] Figure 7 For Figure 1 Another enlarged schematic diagram of the rounded corner area.

[0060] In an embodiment of the present application, as Figure 7 shown, among the multiple second shift register units 112, at least some of the second shift register units 112 have different step lengths. For example, the step length L3 of the second shift register unit 112 is different from the step length L4 of the second shift register unit 112.

[0061] Based on this setting method, in the rounded corner area NR, it is beneficial to flexibly adjust the step length of the second shift register unit 112 according to the position of the pixel row 200 to which the second shift register unit 112 is to be electrically connected, thereby facilitating improving the alignment ability between the second shift register unit 112 and the pixel row 200 to which it is electrically connected and reducing the routing length of the connection trace ZL connected to the second shift register unit 112.

[0062] In addition, as Figure 5 shown, in the rounded corner area NR, the step lengths of at least some of the first shift register units 111 are different from the step lengths of the second shift register units 112. For example, the step length L1 of the first shift register unit 111 is different from the step length L3 of the second shift register unit 112.

[0063] In this way, not only can the structural diversity of the display panel 01 be increased, but also the step lengths of the first shift register unit 111 and the second shift register unit 112 can be flexibly set according to the different alignment situations between the first shift register unit 111, the second shift register unit 112 and the pixel row 200.

[0064] It should be noted that in some cases, such as when the number of the second shift register units 12 is small, the second shift register unit 112 can be set with an equal step size.

[0065] Figure 8 For Figure 1 Another enlarged schematic diagram of the rounded corner area.

[0066] In an embodiment of the present application, as shown in combination with Figure 1 and Figure 8 , the display area AA includes a plurality of pixel rows 200. The pixel rows 200 extend along the second direction h2, and the plurality of pixel rows 200 are arranged along the third direction h3. The second direction h2 intersects with the third direction h3. Optionally, the second direction h2 is the row direction in the display panel 01, and the third direction h3 is the column direction in the display panel 01.

[0067] Each pixel row 200 includes a plurality of sub-pixels 21 and a plurality of scan lines 22. The sub-pixels 21 in the same pixel row 200 are arranged along the second direction h2, the scan lines 22 extend along the second direction h2, and the plurality of scan lines 22 are arranged along the third direction h3. The same pixel row 200 may include a plurality of scan lines 22.

[0068] The display panel 01 includes a plurality of connection traces ZL. The pixel rows 200 are electrically connected to the output terminals PO of the shift register unit 11 through the connection traces ZL. The connection traces ZL are located in the non-display area NA.

[0069] Specifically, one shift register unit 11 may include a plurality of output terminals PO. The output terminals PO of the shift register unit 11 are electrically connected to the scan lines 22 in the pixel row 200 through the connection traces ZL.

[0070] Among them, in at least some of the second type of shift register units 11B and the pixel rows 200 electrically connected thereto, at least some of the output terminals PO of the same second type of shift register unit 11B overlap with the pixel row 200 in the second direction h2.

[0071] That is to say, in the rounded corner area NR, at least some of the output terminals PO of the second type of shift register units 11B overlap with the pixel row 200 electrically connected thereto in the second direction h2. Here, the overlap may mean that the extension line of the output terminal PO in the second direction h2 passes through the area where the pixel row 200 electrically connected thereto is located.

[0072] The embodiment of the present application can improve the alignment accuracy between the second type of shift register unit 11B and the pixel row 200 electrically connected thereto, which is beneficial to reducing the winding length of the connection trace ZL electrically connected to the second type of shift register unit 11B, thereby being beneficial to reducing the occupied space of the connection trace ZL in the rounded corner area NR and reducing the width of the rounded corner area NR.

[0073] Figure 9 This is a schematic plan view of another display panel provided by an embodiment of the present application. Figure 10 It is Figure 9 a partial enlarged view of the rounded corner area in

[0074] In an embodiment of the present application, as Figure 1 and Figure 9 shown, among multiple second-type shift register units 11B, there are a first shift register unit 111 and a second shift register unit 112. The second shift register unit 112 is located on the side of the first shift register unit 111 close to the second non-display area NA2. The widths of the second shift register unit 112 and the first shift register unit 111 in the first direction h1 may be different.

[0075] Combined with Figure 8 and Figure 10 shown, the first shift register unit 111 includes multiple output terminals PO. The pixel row 200 includes multiple scan lines 22. One first shift register unit 111 is electrically connected to the scan lines 22 in at least one pixel row 200.

[0076] Exemplarily, as Figure 8 shown, one first shift register unit 111 is correspondingly electrically connected to the scan lines 22 in one pixel row 200.

[0077] Exemplarily, as Figure 10 shown, one first shift register unit 111 is correspondingly electrically connected to the scan lines 22 in two pixel rows 200.

[0078] As Figure 8 and Figure 10 shown, among the multiple output terminals PO of the first shift register unit 111, there are a first output terminal PO1 and a last output terminal PO2. The first output terminal PO1 may be the output terminal PO closest to the first non-display area NA1 of this first shift register unit 111 in the third direction h3. The last output terminal PO2 may be the output terminal PO farthest from the first non-display area NA1 of this first shift register unit 111 in the third direction h3.

[0079] Among the multiple scan lines 22 electrically connected to the first shift register unit 111, there are a first scan line 221 and a last scan line 222. The first scan line 221 may be the scan line 22 farthest from the second non-display area NA2 electrically connected to this first shift register unit 111 in the third direction h3. The last scan line 222 may be the scan line 22 closest to the second non-display area NA2 electrically connected to this first shift register unit 111 in the third direction h3.

[0080] The first output terminal PO1 is electrically connected to the first scanning line 221, and the last output terminal PO2 is electrically connected to the last scanning line 222. Of course, in the first shift register unit 111, the output terminals between the first output terminal PO1 and the last output terminal PO2 can be correspondingly electrically connected to the scanning lines 22 between the first scanning line 221 and the last scanning line 222.

[0081] Wherein, in the third direction h3, the distance between the first output terminal PO1 and the first scanning line 221 is within a preset range, and / or the distance between the last output terminal PO2 and the last scanning line 222 is within a preset range.

[0082] In the embodiment of the present application, in the third direction h3, setting the distance between the first output terminal PO1 and the first scanning line 221 within a preset range, and / or the distance between the last output terminal PO2 and the last scanning line 222 within a preset range, can make the misalignment between the first output terminal PO1 and the first scanning line 221 smaller, and / or the misalignment between the last output terminal PO2 and the last scanning line 222 smaller, so that there will be no large misalignment between other output terminals PO1 and the corresponding scanning lines 22, which is beneficial to ensuring that the connection trace ZL between the first shift register unit 111 and the pixel row 200 it is electrically connected to has less winding, thus being beneficial to avoiding the connection trace ZL in the rounded corner area NR occupying a large area, and further being beneficial to reducing the border of the rounded corner area NR.

[0083] Optionally, as Figure 10 shown, in the third direction h3, the distance between the first output terminal PO1 and the first scanning line 221 is Y1, and the distance between the last output terminal PO2 and the last scanning line 222 is Y2, and Y1 + Y2 ≤ X / 2.

[0084] Wherein, X is the placement size of two adjacent pixel rows 200 in the third direction h3. Here, the placement size of two adjacent pixel rows 200 includes the distance between the two pixel rows 200 and the width of one pixel row 200 in the third direction h3.

[0085] Based on this setting method, it is beneficial to ensure that the misalignment between the first shift register unit 111 and the pixel row 200 it is electrically connected to is smaller, thus being beneficial to reducing the winding length of the connection trace ZL between the first shift register unit 111 and the pixel row 200, and further being beneficial to realizing a narrower rounded corner area NR.

[0086] Please continue to combine Figure 9 and Figure 10 , in an embodiment of the present application, the first shift register unit 111 includes a plurality of output terminals PO, and one first shift register unit 111 is electrically connected to at least two pixel rows 200. Figure 10Only the situation where a first shift register unit 111 is electrically connected to two pixel rows 200 is schematically shown.

[0087] Among multiple output terminals PO of the first shift register unit 111, there are a first output terminal PO1 and a last output terminal PO2. The first output terminal PO1 can be, in a third direction h3, the output terminal PO of the first shift register unit 111 that is closest to a first non-display area NA1. The last output terminal PO2 can be, in the third direction h3, the output terminal PO of the first shift register unit 111 that is farthest from the first non-display area NA1.

[0088] Among at least two pixel rows 200 electrically connected to the first shift register unit, there are a first pixel row 201 and a last pixel row 202. The first pixel row 201 can be, in the third direction h3, the pixel row 200 that is farthest from a second non-display area NA2 among those electrically connected to the first shift register unit 111. The last pixel row 202 can be, in the third direction h3, the pixel row 202 that is closest to the second non-display area NA2 among those electrically connected to the first shift register unit 111.

[0089] The first output terminal PO1 is electrically connected to the first pixel row 201, and the last output terminal PO2 is electrically connected to the last pixel row 202. Specifically, the first output terminal PO1 is electrically connected to a scan line 22 in the first pixel row 201, and the last output terminal PO2 is electrically connected to a scan line 22 in the last pixel row 202.

[0090] Wherein, in a second direction h2, the first output terminal PO1 overlaps with the first pixel row 201, and / or the last output terminal PO2 overlaps with the last pixel row 202.

[0091] That is to say, in the second direction h2, an extension line of the first output terminal PO1 passes through an area where the first pixel row 201 is located, and / or an extension line of the last output terminal PO2 passes through an area where the last pixel row 202 is located.

[0092] Embodiments of the present application can improve the alignment accuracy between the first shift register unit 111 and the pixel rows 200 electrically connected thereto, which is beneficial to reducing the winding length of a connection trace ZL electrically connected to the first shift register unit 111, thereby being beneficial to reducing the occupied space of the connection trace ZL in a rounded corner area NR and reducing the width of the rounded corner area NR.

[0093] Further, as Figure 10As shown, a first shift register unit 111 is electrically connected to at least two pixel rows 200. The first shift register unit 111 includes a first center line C1 extending along a first direction h1, and the first direction h1 is the width direction of the rounded corner region NR. The at least two pixel rows 200 include a second center line C2 extending along a second direction h2. Of course, the second center line C2 is the center line of the at least two pixel rows 200 as a whole.

[0094] Among them, the extension line of the first center line C1 intersects with the extension line of the second center line C2 at a first node N1, and the first node N1 is located in the region where the connection trace ZL is located. That is, the first node N1 is located in the region where the connection trace ZL is set in the rounded corner region NR, and the first node N1 and the shift register unit 11 may have no overlap in the thickness direction of the display panel 01.

[0095] In this way, it is beneficial to further ensure the alignment accuracy between the first shift register unit 111 and the pixel rows 200 to which it is electrically connected, beneficial to further reduce the winding length of the connection trace ZL, and reduce the width of the rounded corner region NR.

[0096] Figure 11 This is an enlarged schematic diagram of a rounded corner region provided by an embodiment of the present application. Figure 12 is Figure 11 a cross-sectional schematic diagram along the tangent NN' in

[0097] In an embodiment of the present application, as Figure 9 shown, among the multiple connection traces ZL, there is a first type of connection trace ZLA, and the first type of connection trace ZLA is located in the rounded corner region NR. The second type of shift register unit 11B can be electrically connected to the pixel row 200 through the first type of connection trace ZLA correspondingly.

[0098] As Figure 9 shown, among the multiple connection traces ZL, there may also be a second type of connection trace ZLB, and the second type of connection trace ZLB is located in the first non-display region NA1. The first type of shift register unit 11A can be electrically connected to the pixel row 200 through the second type of connection trace ZLB correspondingly.

[0099] As Figure 11 shown, the first type of connection trace ZLA includes a first connection trace ZL1 and a second connection trace ZL2. Combining Figure 12 shown, in the rounded corner region NR, the first connection trace ZL1 and the second connection trace ZL2 are located in different film layers.

[0100] It can be understood that the width direction of the rounded corner region NR intersects with both the second direction h2 and the third direction h3, and the width size of the rounded corner region NR will be affected by the space occupied by the rounded corner region NR in the second direction h2 and the space occupied in the third direction h3.

[0101] In the embodiment of the present application, the first connection trace ZL1 and the second connection trace ZL2 in the rounded corner region NR are located in different film layers. Then, the adjacent first connection trace ZL1 and second connection trace ZL2 can be arranged closer in the third direction h3, which is beneficial to reducing the space occupied by the first connection trace ZL1 and the second connection trace ZL2 as a whole in the third direction h3, and thus beneficial to reducing the width of the rounded corner region NR.

[0102] Please continue to refer to Figure 11 , in an embodiment of the present application, the second shift register unit 112 includes a plurality of output terminals PO. Among the plurality of output terminals PO of the second shift register unit 112, there are adjacent first output terminal POA and second output terminal POB. Among the first output terminal POA and the second output terminal POB, one is electrically connected to the first connection trace ZL1, and the other is electrically connected to the second connection trace ZL2.

[0103] That is to say, in the second shift register unit 112, the connection traces ZL electrically connected by two adjacent output terminals PO can be located in different film layers.

[0104] Since the second shift register unit 112 is closer to the second non-display region NA2 than the first shift register unit 111, there may be more winding of the connection traces ZL electrically connected by the second shift register unit 112.

[0105] Therefore, in the embodiment of the present application, making the connection traces ZL electrically connected by two adjacent output terminals PO in the second shift register unit 112 be located in different film layers is beneficial to greatly reducing the space occupied by the connection traces ZL electrically connected by the second shift register unit 112 in the third direction h3, and thus beneficial to reducing the space occupied by the connection traces ZL in the rounded corner region NR in the third direction h3, and reducing the width of the rounded corner region NR.

[0106] Further, in the rounded corner region NR, among two adjacent output terminals PO of the same second type shift register unit 11B, one is electrically connected to the first connection trace ZL1, and the other is electrically connected to the second connection trace ZL2. That is, whether it is the first shift register unit 111 or the second shift register unit 112, its two adjacent output terminals PO can be connected to the connection traces ZL of different film layers. In this way, it is beneficial to minimize the space occupied by the connection traces ZL in the rounded corner region NR to the greatest extent, and is beneficial to further reducing the width of the rounded corner region NR.

[0107] Optionally, in combination with Figure 9 and Figure 11As shown, pixel row 200 includes multiple scan lines 22, and the shift register unit 11 is electrically connected to the scan lines 22 through connection traces ZL. Among them, one of the first connection trace ZL1 and the second connection trace ZL2 is on the same layer as the scan line 22. In this way, it is beneficial to reduce the number of vias between the connection trace ZL and the scan line 22, simplify the manufacturing process of the display panel 01, and is beneficial to cost savings.

[0108] Figure 13 Another enlarged schematic diagram of the rounded corner area provided by the embodiment of the present application.

[0109] In an embodiment of the present application, as Figure 13 shown, the shift register unit 11 includes an effective shift register unit 101 and a virtual shift register unit 102. The effective shift register unit 101 is connected with a connection trace ZL, and the effective shift register unit 101 is electrically connected to the pixel row 200 in the display area AA through the connection trace ZL. The virtual shift register unit 102 has no electrical connection with the pixel row 200, and no lead-out line needs to be provided on the virtual shift register unit 102.

[0110] In the rounded corner area NR, the width of the virtual shift register unit 102 in the fourth direction h4 is D1. The fourth direction h4 is the extending direction of the rounded corner area NR, that is, the arrangement direction of the shift register unit 11 in the rounded corner area NR.

[0111] Among the effective shift register units 101 located in the rounded corner area NR, it includes two adjacent third shift register units 113, and the distance between the two adjacent third shift register units 113 is D2, D2≥D1.

[0112] Among them, a virtual shift register unit 102 is provided between at least some adjacent two third shift register units 113. The first shift register unit 111 and the second shift register unit 112 in the above embodiments can both include the third shift register unit 113.

[0113] In the embodiment of the present application, the distance between two adjacent third shift register units 113 is not less than the width of the virtual shift register unit 102 in the fourth direction h4. By providing the virtual shift register unit 102 between at least some adjacent two third shift register units 113, it is possible to avoid an overly large blank area between two adjacent third shift register units 113, which is beneficial to improving the etching uniformity of the rounded corner area NR and improving the manufacturing efficiency and product yield of the display panel 01.

[0114] Optionally, in the rounded corner region NR, the number of virtual shift register units 102 in the second type of shift register unit 11B is no more than 5. In this way, it is beneficial to ensure the alignment accuracy between the effective shift register unit 101 and the pixel row 200 to which it is electrically connected, and it is also beneficial to ensure the etching uniformity of the rounded corner region NR.

[0115] Please continue to refer to Figure 13 , in an embodiment of the present application, in the effective shift register unit 101 located in the rounded corner region NR, there are also two adjacent fourth shift register units 114, and the distance between the two adjacent fourth shift register units 114 is D3, and D3 < D1.

[0116] Wherein, etching points CK are arranged between at least some of the two adjacent fourth shift register units 114, and the etching points CK are prepared by the same process as the shift register unit 11. In this way, it is beneficial to further improve the etching uniformity of the rounded corner region NR. The first shift register unit 111 and the second shift register unit 112 in the above embodiment may both include the fourth shift register unit 114.

[0117] In the present application, when the distance between two adjacent effective shift register units 101 in the rounded corner region NR is not less than the width of the virtual shift register unit 102 in the fourth direction h4, a virtual shift register unit 102 may be arranged between the two adjacent effective shift register units 101; when the distance between two adjacent effective shift register units 101 in the rounded corner region NR is less than the width of the virtual shift register unit 102 in the fourth direction h4, an etching point CK may be arranged between the two adjacent effective shift register units 101. In this way, the etching uniformity of the rounded corner region NR is improved.

[0118] In an embodiment of the present application, in combination with Figure 5 and Figure 11 shown, the display area AA includes a plurality of pixel rows 200, the pixel rows 200 extend along the second direction h2, the plurality of pixel rows 200 are arranged along the third direction h3, the second direction h2 intersects with the third direction h3, and both the second direction h2 and the third direction h3 intersect with the first direction h1.

[0119] Optionally, the second direction h2 is the row direction of the display panel 01, and the third direction h3 is the column direction in the display panel 01.

[0120] The display panel 01 further includes a plurality of connection traces ZL, the connection traces ZL are located in the non-display area NA, and the pixel rows 200 are electrically connected to the output ends of the shift register unit 11 through the connection traces ZL correspondingly.

[0121] In the rounded corner area NR, among multiple second - type shift register units 11B, there are a first shift register unit 111 and a second shift register unit 112. The second shift register unit 112 is located on the side of the first shift register unit 111 closer to the second non - display area NA2. In the first direction h1, the width W2 of the second shift register unit 112 is less than the width W1 of the first shift register unit 111. The number of the second shift register units 112 can be less than the number of the first shift register units 111.

[0122] Among them, the connection traces ZL to which the second shift register unit 112 is electrically connected are in a stepped shape.

[0123] In the embodiment of the present application, setting the connection traces ZL to which the second shift register unit 112 is electrically connected in a stepped shape can make these connection traces ZL more regular. This is not only beneficial to reasonably planning the positions of these traces ZL to reduce the occupied space, but also beneficial to reducing the layout difficulty of these connection traces ZL and improving the manufacturing efficiency.

[0124] Figure 14 It is another enlarged schematic diagram of the rounded corner area provided by the embodiment of the present application.

[0125] As Figure 14 shown, in an embodiment of the present application, the rounded corner area NR further includes an electrostatic discharge unit 300. The electrostatic discharge unit 300 is located on the side of the second shift register unit 112 closer to the second non - display area NA2.

[0126] Along the direction perpendicular to the plane where the display panel 01 is located, a part of the connection traces ZL connected to the second shift register unit 112 overlap with the lead - out line CL of the electrostatic discharge unit 300.

[0127] That is to say, the lead - out line CL of the electrostatic discharge unit 300 can be in different film layers from a part of the connection traces ZL, and the two overlap in the direction perpendicular to the plane where the display panel 01 is located.

[0128] Since the connection traces ZL electrically connected to the second shift register unit 112 usually need to be electrically connected to the pixel rows 200 close to the second non - display area NA2, these connection traces ZL may pass through the area where the electrostatic discharge unit 300 and its lead - out line CL are located.

[0129] In the embodiment of the present application, making a part of the connection traces ZL connected to the second shift register unit 112 overlap with the lead - out line CL of the electrostatic discharge unit 300 eliminates the need to increase the width of the rounded corner area NR to avoid the connection traces ZL and the lead - out line CL of the electrostatic discharge unit 300 from interfering with each other, which is beneficial to further reducing the width of the rounded corner area NR.

[0130] Figure 15A schematic diagram of a display device provided in an embodiment of the present application.

[0131] The present application embodiment provides a display device 02, such as Figure 15 As shown, it includes the display panel 01 provided in the above embodiment. Exemplarily, the display device 02 provided in the embodiment of the present application is an electronic device such as a mobile phone, a tablet computer, a television, a car display, a wearable display, etc., which is not specifically limited in the present application.

[0132] In the display device 02, at least some of the second-type shift register units 11B are set with different step sizes. Then, in the rounded area NR, the step size of the second-type shift register unit 11B can be flexibly adjusted according to the position of the pixel row 200 to which the second-type shift register unit 11B is to be electrically connected, so that the second-type shift register unit 11B and the pixel row 200 to which it is electrically connected are aligned, which is beneficial to reduce the winding length of the connecting line ZL between the second-type shift register unit 11B and the pixel row 200 to which it is electrically connected, and reduce the space occupied by the connecting line ZL, which is beneficial to reduce the width of the rounded area NR, making it possible for the width of the rounded area NR to be consistent with the width of the first non-display area NA1, which is beneficial to achieving a narrow frame of the display panel 01 and increasing the aesthetics of the display panel 01.

[0133] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that, It includes a display area and a non-display area. The non-display area surrounds at least part of the display area. The non-display area includes a first non-display area, a rounded corner area, and a second non-display area. The rounded corner area is located between the first non-display area and the second non-display area. Both the first non-display area and the second non-display area are adjacent to the rounded corner area; The display panel includes a scan driving circuit. The scan driving circuit includes a plurality of shift register units. Among the plurality of shift register units, there are a plurality of first-type shift register units and a plurality of second-type shift register units. The first-type shift register units are located in the first non-display area, and the second-type shift register units are located in the rounded corner area; Wherein, in the rounded corner area, at least some of the second-type shift register units have different step lengths.

2. The display panel according to claim 1, wherein In the first non-display area, the plurality of first-type shift register units are arranged with equal step lengths.

3. The display panel according to claim 1, characterized in that, In the rounded corner area, the spacing between at least some adjacent second-type shift register units is different.

4. The display panel according to claim 1, wherein Among the plurality of second-type shift register units, there are a first shift register unit and a second shift register unit. The second shift register unit is located on the side of the first shift register unit close to the second non-display area; In a first direction, the width of the first shift register unit is different from the width of the second shift register unit. The first direction is the width direction of the rounded corner area.

5. The display panel according to claim 4, wherein In the first direction, the width of the first shift register unit is greater than the width of the second shift register unit.

6. The display panel according to claim 5, wherein Among the plurality of second-type shift register units, there is also a third shift register unit. The third shift register unit is located between the first shift register unit and the second shift register unit. In the first direction, the width of the third shift register unit is less than the width of the first shift register unit and greater than the width of the second shift register unit.

7. The display panel according to claim 1, wherein Among the plurality of second-type shift register units, there are a first shift register unit and a second shift register unit. The second shift register unit is located on the side of the first shift register unit close to the second non-display area; Among the plurality of first shift register units, at least some of the first shift register units have different step lengths.

8. The display panel according to claim 7, wherein, Among the plurality of second shift register units, at least some of the second shift register units have different step lengths.

9. The display panel according to claim 7, characterized in that, The step lengths of at least some of the first shift register units are different from the step lengths of the second shift register units.

10. The display panel according to claim 1, characterized in that, The display area includes a plurality of pixel rows. The pixel rows extend in a second direction, and the plurality of pixel rows are arranged in a third direction. The second direction intersects the third direction; The display panel includes a plurality of connection traces. The pixel rows are electrically connected to the output ends of the shift register units through the connection traces. Wherein, in at least some of the second-type shift register units and the pixel rows electrically connected thereto, at least some output ends of the same second-type shift register unit overlap with the pixel rows in the second direction.

11. The display panel according to claim 10, wherein Among the multiple second - type shift register units, a first shift register unit and a second shift register unit are included. The second shift register unit is located on a side of the first shift register unit closer to the second non - display area; The first shift register unit includes multiple output terminals. The pixel row includes multiple scan lines. One first shift register unit is electrically connected to the scan lines in at least one pixel row. Among the multiple output terminals of the first shift register unit, a first - order output terminal and a last - order output terminal are included. Among the multiple scan lines electrically connected to the first shift register unit, a first - order scan line and a last - order scan line are included. The first - order output terminal is electrically connected to the first - order scan line, and the last - order output terminal is electrically connected to the last - order scan line; Wherein, in the third direction, the distance between the first - order output terminal and the first - order scan line is within a preset range, and / or the distance between the last - order output terminal and the last - order scan line is within a preset range.

12. The display panel according to claim 11, wherein In the third direction, the distance between the first - order output terminal and the first - order scan line is Y1, and the distance between the last - order output terminal and the last - order scan line is Y2, and Y1 + Y2≤X / 2; Wherein, X is the placement dimension of two adjacent pixel rows in the third direction.

13. The display panel according to claim 10, wherein Among the multiple second - type shift register units, a first shift register unit and a second shift register unit are included. The second shift register unit is located on a side of the first shift register unit closer to the second non - display area; The first shift register unit includes multiple output terminals. One first shift register unit is electrically connected to at least two pixel rows. Among the multiple output terminals of the first shift register unit, a first - order output terminal and a last - order output terminal are included. Among the at least two pixel rows electrically connected to the first shift register unit, a first - order pixel row and a last - order pixel row are included. The first - order output terminal is electrically connected to the first - order pixel row, and the last - order output terminal is electrically connected to the last - order pixel row; Wherein, in the second direction, the first - order output terminal overlaps with the first - order pixel row, and / or the last - order output terminal overlaps with the last - order pixel row.

14. The display panel according to claim 10, wherein Among the multiple second - type shift register units, a first shift register unit and a second shift register unit are included. The second shift register unit is located on a side of the first shift register unit closer to the second non - display area; One first shift register unit is electrically connected to at least two pixel rows. The first shift register unit includes a first center line extending along a first direction, and the first direction is the width direction of the rounded - corner area. The at least two pixel rows include a second center line extending along the second direction. The extension line of the first center line intersects with the extension line of the second center line at a first node, and the first node is located in the area where the connection trace is located.

15. The display panel according to claim 10, wherein Among the multiple connection traces, a first - type connection trace is included. The first - type connection trace is located in the rounded - corner area. The first - type connection trace includes a first connection trace and a second connection trace; In the rounded - corner area, the first connection trace and the second connection trace are located in different film layers.

16. The display panel according to claim 15, wherein Among the multiple second - type shift register units, a first shift register unit and a second shift register unit are included, and the second shift register unit is located on a side of the first shift register unit closer to the second non - display area; Among the multiple output terminals of the second shift register unit, adjacent first and second output terminals are included. Among the adjacent first output terminal and the second output terminal, one is electrically connected to the first connection trace, and the other is electrically connected to the second connection trace.

17. The display panel according to claim 15, wherein Among two adjacent output terminals of the same second - type shift register unit, one is electrically connected to the first connection trace, and the other is electrically connected to the second connection trace.

18. The display panel according to claim 15, wherein, The pixel row includes multiple scan lines, and the shift register unit is electrically connected to the scan lines through the connection traces; wherein, one of the first connection trace and the second connection trace is on the same layer as the scan lines.

19. The display panel according to claim 1, characterized in that, The shift register unit includes an effective shift register unit and a virtual shift register unit. In the rounded - corner area, the width of the virtual shift register unit in the fourth direction is D1, and the fourth direction is the extending direction of the rounded - corner area; Among the effective shift register units located in the rounded - corner area, two adjacent third shift register units are included, and the distance between the two adjacent third shift register units is D2, and D2≥D1; Wherein, at least part of the virtual shift register units are arranged between two adjacent third shift register units.

20. The display panel according to claim 19, wherein, Among the effective shift register units located in the rounded - corner area, two adjacent fourth shift register units are also included, and the distance between the two adjacent fourth shift register units is D3, and D3<D1; Wherein, at least part of the etching points are arranged between two adjacent fourth shift register units.

21. The display panel according to claim 1, wherein, The shift register unit includes an effective shift register unit and a virtual shift register unit. In the rounded - corner area, the number of the virtual shift register units in the second - type shift register unit is no more than 5.

22. The display panel according to claim 1, wherein The display area includes multiple pixel rows, the pixel rows extend in the second direction, and the multiple pixel rows are arranged in the third direction, and the second direction intersects with the third direction; The display panel includes multiple connection traces, and the pixel rows are correspondingly electrically connected to the output terminals of the shift register unit through the connection traces; among the multiple second - type shift register units, a first shift register unit and a second shift register unit are included, and the second shift register unit is located on a side of the first shift register unit closer to the second non - display area; Wherein, the connection traces electrically connected to the second shift register unit are in a stepped shape.

23. The display panel according to claim 22, wherein, The rounded - corner area further includes an electrostatic discharge unit, and the electrostatic discharge unit is located on a side of the second shift register unit closer to the second non - display area; Along the direction perpendicular to the plane where the display panel is located, a part of the connection traces connected to the second shift register unit overlap with the lead - out lines of the electrostatic discharge unit.

24. A display device, characterized in that, A display panel including any one of claims 1 - 23 is included.

Images