Display panel and display apparatus

Abstract

Provided in the embodiments of the present application are a display panel and a display apparatus. The display panel comprises a display region and a non-display region. The non-display region surrounds at least part of the display region, and the non-display region comprises a first non-display region, a rounded corner region and a second non-display region, wherein the rounded corner region is located between the first non-display region and the second non-display region, and both the first non-display region and the second non-display region are adjacent to the rounded corner region. The display panel comprises a scan driving circuit. The scan driving circuit comprises a plurality of shift register units, the plurality of shift register units including a plurality of first‑type shift register units and a plurality of second‑type shift register units, wherein the first‑type shift register units are located in the first non-display region, the second-type shift register units are located in the rounded corner region, and in the rounded corner region, at least some of the second-type shift register units have different step sizes. The present application can reduce the width of rounded corner regions, thereby helping to make the width of the rounded corner regions converge towards that of first non-display regions.

Description

A display panel and display device

[0001] This invention claims priority to Chinese Patent Application No. 202411191225.X, filed with the State Intellectual Property Office on August 28, 2024, entitled “A Display Panel and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0003] In display panels, rounded corner bezels are typically incorporated into the straight edges to enhance the panel's aesthetics. However, in current technology, the width of the rounded corner bezels is usually larger than the width of the straight edges, which hinders the achievement of narrow bezels and negatively impacts the display panel's appearance. Therefore, a solution is urgently needed.

[0004] Summary of the Invention

[0005] In view of this, embodiments of this application provide a display panel and a display device to solve the above problems.

[0006] In a first aspect, embodiments of this application provide a display panel, including a display area and a non-display area. The non-display area surrounds at least a portion 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 and second non-display areas, and both the first and second non-display areas are connected to the rounded corner area. The display panel includes a scan driving circuit, which includes a plurality of shift register units. The plurality of shift register units includes 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. In the rounded corner area, at least some of the second-type shift register units have different step sizes.

[0007] Secondly, embodiments of this application provide a display device, including a display panel as provided in the first aspect.

[0008] In this embodiment, at least some of the second-type shift register units have different step sizes. In the rounded corner area, the step size of the second-type shift register unit can be flexibly adjusted according to the position of the pixel row to which the second-type shift register unit is to be electrically connected, so that the second-type shift register unit and the pixel row to which it is electrically connected are aligned. This helps to reduce the length of the connection trace between the second-type shift register unit and the pixel row to which it is electrically connected, reduce the space occupied by the connection trace, and further reduce the width of the rounded corner area. This makes it possible for the width of the rounded corner area to be consistent with the width of the first non-display area, which is beneficial for achieving a narrow bezel of the display panel and for increasing the aesthetics of the display panel. Attached Figure Description

[0009] Figure 1 is a plan view of a display panel provided in an embodiment of this application;

[0010] Figure 2 is an enlarged schematic diagram of the rounded corner area in Figure 1;

[0011] Figure 3 is another enlarged schematic diagram of the rounded corner area in Figure 1;

[0012] Figure 4 is a partially enlarged schematic diagram of a display panel in the prior art;

[0013] Figure 5 is another enlarged schematic diagram of the rounded corner area in Figure 1;

[0014] Figure 6 is another enlarged schematic diagram of the rounded corner area in Figure 1;

[0015] Figure 7 is another enlarged schematic diagram of the rounded corner area in Figure 1;

[0016] Figure 8 is another enlarged schematic diagram of the rounded corner area in Figure 1;

[0017] Figure 9 is a plan view of another display panel provided in an embodiment of this application;

[0018] Figure 10 is a magnified view of a portion of the rounded corner area in Figure 9;

[0019] Figure 11 is an enlarged schematic diagram of a rounded corner area provided in an embodiment of this application;

[0020] Figure 12 is a schematic diagram of a cross section along the NN' tangent in Figure 11;

[0021] Figure 13 is an enlarged schematic diagram of another rounded corner area provided in an embodiment of this application;

[0022] Figure 14 is an enlarged schematic diagram of another rounded corner area provided in an embodiment of this application;

[0023] Figure 15 is a schematic diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0024] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0028] Figure 1 is a plan view of a display panel provided in an embodiment of this application, Figure 2 is an enlarged view of the rounded corner area in Figure 1, and Figure 3 is another enlarged view of the rounded corner area in Figure 1.

[0029] As shown in Figure 1, this application embodiment provides a display panel 01, including a display area AA and a non-display area NA, wherein the non-display area NA surrounds at least a portion of the display area AA. Optionally, as shown in Figure 1, the display area AA is completely surrounded by the non-display area NA.

[0030] 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.

[0031] Optionally, the first non-display area NA1 is the "left" border of the display panel 01, the second non-display area NA2 is the "bottom" border of the display panel 01, and the first non-display area NA1 is the straight edge border of the display panel 01. It should be noted that the display panel 01 may include four rounded corner areas NR, which are illustrated here as the rounded corner area NR between the "left" border and the "bottom" border of the display panel 01.

[0032] Please continue to refer to Figure 1. The display panel 01 also includes a scan driving circuit 100. The scan driving circuit 100 includes a plurality of shift register units 11. The plurality of shift register units 11 include 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.

[0033] The display area AA includes multiple pixel rows 200. Each pixel row 200 includes multiple sub-pixels 21 and multiple scan lines 22 (only one scan line is shown in Figure 1). The sub-pixels 21 and the scan lines 22 are electrically connected to each other. The signals on the scan lines 22 can be used to control the transistors in the sub-pixels 21 to turn on or off. The shift register unit 11 is used to transmit signals to the scan lines 22.

[0034] As shown in Figure 1, the shift register unit 11 can be electrically connected to the scan line 22 via the connecting trace ZL. The connecting trace ZL is located in the non-display area NA.

[0035] As shown in Figures 2 and 3, in the rounded corner area NR, at least some of the second type of shift register units 11B have different step sizes. That is, in the rounded corner area NR, the second type of shift register units 11B can be set with non-uniform step sizes. In this application, the step size 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 the shift register unit 11 in their respective arrangement directions.

[0036] For example, as shown in Figures 2 and 3, the rounded corner area NR includes step size L1 and step size L2, which are different.

[0037] It should be noted that, as shown in Figure 2, in the rounded corner area NR, the second type of shift register unit 11B can all be effective shift register units 101. The effective shift register unit 101 is electrically connected to the corresponding scan line 22 through the connecting trace ZL, and is used to transmit signals to the scan line 22.

[0038] As shown in Figure 3, in the rounded corner region NR, the second type of shift register 11B may include an effective shift register 101 and a virtual shift register 102. The effective shift register 101 is electrically connected to the scan line 22 via a connecting trace ZL, while the virtual shift register 102 is electrically insulated from the scan line 22. The virtual shift register 102 may not have a connecting trace ZL. When calculating the step size of the second type of shift register 11B in the rounded corner region NR, two adjacent second type of shift register 11B may include an effective shift register 101 and / or a virtual shift register 102.

[0039] The inventors of this application have discovered through research that, in existing display panels, as shown in Figure 4 (a partially 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 equal step size. This results in a large misalignment between the shift register unit 11' and the scan line 22' in the display area AA' to which it is connected, and the connecting trace ZL' between the two has many windings, requiring a large space, thus resulting in a large width of the rounded corner area NR'.

[0040] In view of this, in the embodiments of this application, at least some of the second type of shift register units 11B are set with different step sizes. 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 which the second type of shift register unit 11B is to be electrically connected, so that the second type of shift register unit 11B and the pixel row 200 to which it is electrically connected are aligned. This helps to reduce 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, reduce the space occupied by the connection trace ZL, and further reduce the width of the rounded corner area NR. This makes it possible for the width of the rounded corner area NR to be consistent with the width of the first non-display area NA1, which is beneficial to achieving a narrow bezel of the display panel 01 and to increasing the aesthetics of the display panel 01.

[0041] Optionally, in the rounded corner region NR, the spacing between at least partially adjacent second-type shift register units 11B is different. Here, the spacing between two adjacent second-type shift register units 11B can refer to the minimum spacing between them. When three adjacent second-type shift register units 11B have the same structure, the spacing between two adjacent second-type shift register units 11B is different, and the step size is also different. When three adjacent second-type shift register units 11B have different structures (e.g., when the widths of two adjacent second-type shift register units are different in their arrangement directions), the spacing between two adjacent second-type shift register units 11B is different, but the step size may be the same.

[0042] Please continue to refer to Figure 1. In the first non-display area NA1, multiple first-type shift register units 11A are arranged with equal step sizes.

[0043] It is understandable that, since the pixel rows 200 in the display area AA are usually evenly spaced, the arrangement direction of the first type of shift register unit 11A in the first non-display area NA1 can be parallel to the arrangement direction of the pixel rows 200. Therefore, in this embodiment, the first type of shift register unit 11A in the first non-display area NA1 is set with equal step size. On the one hand, this allows the first type of shift register unit 11A to be aligned with the pixel rows 200; on the other hand, it reduces the fabrication difficulty of the first type of shift register unit 11A and simplifies the process.

[0044] Figure 5 is another enlarged schematic diagram of the rounded corner area in Figure 1.

[0045] In one embodiment of this application, as shown in FIG5, in the rounded corner area NR, a plurality of second type shift register units 11B include a first shift register unit 111 and a second shift register unit 112, 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.

[0046] For example, the second shift register unit 112 is adjacent to the second non-display area NA2. That is, no other shift register unit 11 is disposed between the second shift register unit 112 and the second non-display area NA2.

[0047] 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 rounded corner area NR points in the direction of the display area AA.

[0048] In this embodiment, the width W1 of the first shift register unit 111 in the first direction h1 is different from the width W2 of the second shift register unit 112 in the first direction h1. This allows for flexible setting of the widths of the two units in the first direction h1 based on the length of the connecting trace ZL electrically connecting the first and second shift register units 111 and 112, thus reserving more space for the connecting trace ZL. This eliminates the need to increase the width of the rounded corner area NR to accommodate the connecting trace ZL, which helps to further reduce the width of the rounded corner area NR and make the width of the rounded corner area NR more consistent with the width of the first non-display area NA1.

[0049] Optionally, as shown in Figure 5, in the first direction h1, the width W1 of the first shift register 111 is greater than the width W2 of the second shift register 112.

[0050] In some cases, other circuits, such as electrostatic discharge circuits, 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 connecting trace ZL to which the second shift register unit near the second non-display area NA2 is heavily wound.

[0051] Therefore, setting the width W2 of the second shift register unit 112 in the first direction h1 to be small is beneficial to reserving sufficient space for the connection trace ZL electrically connected to the second shift register unit 112, avoiding additional increase in the width of the rounded corner area NR, thereby ensuring that the width of the rounded corner area NR is small.

[0052] Furthermore, as shown in Figure 6, which is another enlarged schematic diagram of the rounded corner area in Figure 1, the multiple second-type shift register units 11B also include a third shift register unit 113, which is located between the first shift register unit 111 and the second shift register unit 112.

[0053] In the first direction h1, the width W3 of the third shift register 113 is smaller than the width W1 of the first shift register 111 and larger than the width W2 of the second shift register 112.

[0054] The inventors of this application have discovered 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 connecting trace ZL electrically connected to the shift register unit 11 may experience a gradual increase in winding.

[0055] In view of this, the width of the third shift register 113 is located between the width of the first shift register 111 and the width of the second shift register 112. This is beneficial to reserve appropriate space for the connection traces ZL in each area of ​​the rounded corner area NR. On the one hand, it helps to avoid increasing the width of the rounded corner area NR due to insufficient reserved space; on the other hand, it helps to avoid large blank areas due to excessive reserved space, which would affect the uniformity of etching.

[0056] Please continue to refer to Figure 5. In one embodiment of this application, a plurality of second type shift register units 11B include 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 that is close to the second non-display area NA2.

[0057] 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 second shift register units 112 is less than the number of first shift register units 111.

[0058] Among the plurality of first shift register units 111, at least some of the first shift register units 111 have different step sizes. For example, the step size L1 of the first shift register unit 111 is different from the step size L2 of the first shift register unit 111.

[0059] In this embodiment, the step size of at least some of the first shift register units 111 is different. In the rounded corner area NR, the step size 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. This is beneficial to improving the alignment capability of the first shift register unit 111 with the pixel row 200 to which it is electrically connected, thereby helping to minimize the winding length of the first shift register unit 111 and achieve a smaller width of the rounded corner area NR.

[0060] Figure 7 is another enlarged schematic diagram of the rounded corner area in Figure 1.

[0061] In one embodiment of this application, as shown in FIG7, at least some of the second shift register units 112 have different step sizes. For example, the step size L3 of the second shift register unit 112 is different from the step size L4 of the second shift register unit 112.

[0062] Based on this configuration, in the rounded corner area NR, it is advantageous to flexibly adjust the step size 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 improving the alignment capability of the second shift register unit 112 with the pixel row 200 to which it is electrically connected and reducing the winding length of the connecting trace ZL connected to the second shift register unit 112.

[0063] Furthermore, as shown in Figure 5, in the rounded corner region NR, at least part of the step size of the first shift register 111 is different from the step size of the second shift register 112. For example, the step size L1 of the first shift register 111 is different from the step size L3 of the second shift register 112.

[0064] In this way, the structural diversity of the display panel 01 can be increased, and the step size of the first shift register unit 111 and the step size of the second shift register unit 112 can be flexibly set according to the different alignment of the first shift register unit 111, the second shift register unit 112 and the pixel row 200.

[0065] It should be noted that in some cases, such as when the number of second shift register units 12 is small, the second shift register units 112 can be set with equal step size.

[0066] Figure 8 is another enlarged schematic diagram of the rounded corner area in Figure 1.

[0067] In one embodiment of this application, as shown in Figures 1 and 8, the display area AA includes a plurality of pixel rows 200, which extend along a second direction h2 and are arranged along a third direction h3, where the second direction h2 and the third direction h3 intersect. 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.

[0068] Pixel row 200 includes multiple sub-pixels 21 and multiple scan lines 22. The sub-pixels 21 in the same pixel row 200 are arranged along a second direction h2, the scan lines 22 extend along the second direction h2, and the multiple scan lines 22 are arranged along a third direction h3. The same pixel row 200 may include multiple scan lines 22.

[0069] The display panel 01 includes multiple connection traces ZL. The pixel row 200 is electrically connected to the output terminal PO of the shift register unit 11 via the connection traces ZL. The connection traces ZL are located in the non-display area NA.

[0070] Specifically, a shift register unit 11 may include multiple output terminals PO, and the output terminals PO of the shift register unit 11 are electrically connected to the corresponding scan lines 22 in the pixel row 200 through the connecting traces ZL.

[0071] In at least some of the second type shift register units 11B and the pixel row 200 to which they are electrically connected, at least some of the output terminals PO of the same second type shift register unit 11B overlap with the pixel row 200 in the second direction h2.

[0072] In other words, in the rounded corner region NR, at least a portion of the output terminal PO of the second type shift register unit 11B overlaps with the pixel row 200 electrically connected to it in the second direction h2. This overlap can mean that the extension line of the output terminal PO in the second direction h2 passes through the region where the pixel row 200 electrically connected to it is located.

[0073] The embodiments of this application can improve the alignment accuracy between the second type of shift register unit 11B and the pixel row 200 to which it is electrically connected, which is beneficial to reduce the winding length of the connecting trace ZL to which the second type of shift register unit 11B is electrically connected, thereby reducing the space occupied by the connecting trace ZL in the rounded corner area NR and reducing the width of the rounded corner area NR.

[0074] Figure 9 is a plan view of another display panel provided in an embodiment of this application, and Figure 10 is a partial enlarged view of the rounded corner area in Figure 9.

[0075] In one embodiment of this application, as shown in Figures 1 and 9, a plurality of second-type shift register units 11B include a first shift register unit 111 and a second shift register unit 112, with the second shift register unit 112 located on the side of the first shift register unit 111 closer to the second non-display area NA2. The width of the second shift register unit 112 and the first shift register unit 111 in the first direction h1 may be different.

[0076] As shown in Figures 8 and 10, the first shift register unit 111 includes multiple output terminals PO, the pixel row 200 includes multiple scan lines 22, and one first shift register unit 111 is electrically connected to at least one scan line 22 in the pixel row 200.

[0077] For example, as shown in FIG8, a first shift register unit 111 is electrically connected to a scan line 22 in a pixel row 200.

[0078] For example, as shown in FIG10, a first shift register unit 111 is electrically connected to a corresponding scan line 22 in two pixel rows 200.

[0079] As shown in Figures 8 and 10, the first shift register unit 111 includes a first output terminal PO1 and a last output terminal PO2 among its multiple output terminals PO. The first output terminal PO1 can be located on the third direction h3, and is the output terminal PO of the first shift register unit 111 that is closest to the first non-display area NA1. The last output terminal PO2 can be located on the third direction h3, and is the output terminal PO of the first shift register unit 111 that is farthest from the first non-display area NA1.

[0080] The first shift register unit 111 is electrically connected to multiple scan lines 22, including 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 that is electrically connected to the 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 that is electrically connected to the first shift register unit 111 in the third direction h3.

[0081] The first output terminal PO1 is electrically connected to the first scan line 221, and the last output terminal PO2 is electrically connected to the last scan line 222. Of course, in the first shift register unit 111, the output terminal located between the first output terminal PO1 and the last output terminal PO2 can be electrically connected to the corresponding scan line 22 located between the first scan line 221 and the last scan line 222.

[0082] Specifically, on the third-direction h3, the distance between the first output terminal PO1 and the first scan line 221 is within a preset range, and / or the distance between the last output terminal PO2 and the last scan line 222 is within a preset range.

[0083] In this embodiment, on the third-party direction h3, the distance between the first output terminal PO1 and the first scan line 221 is set within a preset range, and / or the distance between the last output terminal PO2 and the last scan line 222 is set within a preset range. This makes the misalignment between the first output terminal PO1 and the first scan line 221 smaller, and / or the misalignment between the last output terminal PO2 and the last scan line 222 smaller. This also prevents large misalignment between other output terminals PO1 and their corresponding scan lines 22, which helps to ensure that the winding of the connection trace ZL between the first shift register unit 111 and the pixel row 200 to which it is electrically connected is less. This helps to avoid the connection trace ZL in the rounded corner area NR occupying a large area, and thus helps to reduce the border of the rounded corner area NR.

[0084] Optionally, as shown in Figure 10, on the third direction h3, the distance between the first output terminal PO1 and the first scan line 221 is Y1, and the distance between the last output terminal PO2 and the last scan line 222 is Y2, where Y1+Y2≤X / 2.

[0085] Where X is the placement size of two adjacent pixel rows 200 on 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 on the third direction h3.

[0086] Based on this configuration, it is beneficial to ensure that the misalignment between the first shift register unit 111 and the pixel row 200 to which it is electrically connected is small, thereby reducing the winding length of the connection trace ZL between the first shift register unit 111 and the pixel row 200, which in turn helps to achieve a narrower rounded corner area NR.

[0087] Referring to Figures 9 and 10, in one embodiment of this application, the first shift register unit 111 includes multiple output terminals PO, and one first shift register unit 111 is electrically connected to at least two pixel rows 200. Figure 10 only illustrates the case where one first shift register unit 111 is electrically connected to two pixel rows 200.

[0088] The first shift register unit 111 has multiple output terminals PO, including a first output terminal PO1 and a last output terminal PO2. The first output terminal PO1 can be on the third direction h3, and is the output terminal PO of the first shift register unit 111 that is closest to the first non-display area NA1. The last output terminal PO2 can be on the third direction h3, and is the output terminal PO of the first shift register unit 111 that is farthest from the first non-display area NA1.

[0089] The first shift register unit is electrically connected to at least two pixel rows 200, including a first pixel row 201 and a last pixel row 202. The first pixel row 201 may be the pixel row 200 farthest from the second non-display area NA2 that is electrically connected to the first shift register unit 111 in the third direction h3. The last pixel row 202 may be the pixel row 202 closest to the second non-display area NA2 that is electrically connected to the first shift register unit 111 in the third direction h3.

[0090] 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 the scan line 22 in the first pixel row 201, and the last output terminal PO2 is electrically connected to the scan line 22 in the last pixel row 202.

[0091] In the 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.

[0092] In other words, in the second direction h2, the extension line of the first output terminal PO1 passes through the area where the first pixel row 201 is located, and / or the extension line of the last output terminal PO2 passes through the area where the last pixel row 202 is located.

[0093] The embodiments of this application can improve the alignment accuracy between the first shift register unit 111 and the pixel row 200 to which it is electrically connected, which is beneficial to reduce the winding length of the connecting trace ZL to which the first shift register unit 111 is electrically connected, thereby reducing the space occupied by the connecting trace ZL in the rounded corner area NR and reducing the width of the rounded corner area NR.

[0094] Furthermore, as shown in Figure 10, 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, where h1 is the width direction of the rounded corner area NR. The at least two pixel rows 200 include a second center line C2 extending along a second direction h2, where the second center line C2 is the center line of the at least two pixel rows 200 as a whole.

[0095] The extension of the first center line C1 intersects the extension of the second center line C2 at the first node N1, which is located in the area where the connecting trace ZL is located. That is, the first node N1 is located in the area where the connecting trace ZL is set in the rounded corner area NR, and the first node N1 and the shift register unit 11 can be non-overlapping in the thickness direction of the display panel 01.

[0096] This helps to further ensure the alignment accuracy between the first shift register unit 111 and the pixel row 200 to which it is electrically connected, and helps to further reduce the winding length of the connecting trace ZL and the width of the rounded corner area NR.

[0097] Figure 11 is an enlarged schematic diagram of a rounded corner area provided in an embodiment of this application, and Figure 12 is a cross-sectional schematic diagram along the NN' tangent in Figure 11.

[0098] In one embodiment of this application, as shown in FIG9, the multiple connection traces ZL include a first type of connection trace ZLA, which is located in the rounded corner area NR. The second type of shift register unit 11B can be electrically connected to the corresponding pixel row 200 through the first type of connection trace ZLA.

[0099] As shown in Figure 9, the multiple connection traces ZL may also include a second type of connection trace ZLB. The second type of connection trace ZLB is located in the first non-display area 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.

[0100] As shown in Figure 11, the first type of connection trace ZLA includes a first connection trace ZL1 and a second connection trace ZL2. Referring to Figure 12, in the rounded corner region NR, the first connection trace ZL1 and the second connection trace ZL2 are located in different film layers.

[0101] It is understandable that the width direction of the rounded corner area NR intersects with both the second direction h2 and the third direction h3. The width of the rounded corner area NR will be affected by the space occupied by the rounded corner area NR in the second direction h2 and the space occupied in the third direction h3.

[0102] In this embodiment, 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 the second connection trace ZL2 can be set closer together on the third direction h3, which helps to reduce the space occupied by the first connection trace ZL1 and the second connection trace ZL2 as a whole on the third direction h3, thereby helping to reduce the width of the rounded corner region NR.

[0103] Please continue to refer to Figure 11. In one embodiment of this 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 terminals POA and second output terminals POB. In the first output terminal POA and the second output terminal POB, one is electrically connected to the first connection line ZL1, and the other is electrically connected to the second connection line ZL2.

[0104] In other words, in the second shift register unit 112, the connection traces ZL electrically connected to two adjacent output terminals PO can be located in different film layers.

[0105] Since the second shift register unit 112 is closer to the second non-display area NA2 than the first shift register unit 111, the wiring ZL electrically connected to the second shift register unit 112 may have more windings.

[0106] Therefore, in this embodiment of the application, the connection traces ZL electrically connected to the two adjacent output terminals PO in the second shift register unit 112 are located in different film layers. This is beneficial to reduce the space occupied by the connection traces ZL electrically connected to the second shift register unit 112 in the third direction h3, thereby reducing the space occupied by the connection traces ZL in the third direction h3 in the rounded corner region NR and reducing the width of the rounded corner region NR.

[0107] Furthermore, in the rounded corner region NR, among the 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 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, and to further reduce the width of the rounded corner region NR.

[0108] Optionally, as shown in Figures 9 and 11, the pixel row 200 includes multiple scan lines 22, and the shift register unit 11 is electrically connected to the scan lines 22 via connecting traces ZL. One of the first connecting trace ZL1 and the second connecting trace ZL2 is on the same layer as the scan lines 22. This reduces the number of holes between the connecting traces ZL and the scan lines 22, simplifies the manufacturing process of the display panel 01, and helps save costs.

[0109] Figure 13 is an enlarged schematic diagram of another rounded corner area provided in an embodiment of this application.

[0110] In one embodiment of this application, as shown in FIG13, 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 to a connection trace ZL and is electrically connected to the pixel row 200 in the display area AA via the connection trace ZL. The virtual shift register unit 102 is not electrically connected to the pixel row 200, and no lead wires may be provided on the virtual shift register unit 102.

[0111] In the rounded corner region NR, the width of the virtual shift register unit 102 in the fourth direction h4 is D1. The fourth direction h4 is the extension direction of the rounded corner region NR, which is also the arrangement direction of the shift register unit 11 in the rounded corner region NR.

[0112] The effective shift register 101 located in the rounded corner region NR includes two adjacent third shift registers 113, and the distance between the two adjacent third shift registers 113 is D2, where D2≥D1.

[0113] In this embodiment, a virtual shift register 102 is provided between at least two partially adjacent third shift register units 113. Both the first shift register unit 111 and the second shift register unit 112 in the above embodiments may include a third shift register unit 113.

[0114] In this embodiment, 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. Setting the virtual shift register unit 102 between at least two partially adjacent third shift register units 113 can avoid the blank area between two adjacent third shift register units 113 being too large, 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.

[0115] Optionally, in the rounded corner area NR, the number of virtual shift register units 102 in the second type of shift register unit 11B is no more than 5. This is beneficial for ensuring the alignment accuracy between the effective shift register unit 101 and the pixel row 200 it is electrically connected to, and also for ensuring the etching uniformity of the rounded corner area NR.

[0116] Please continue to refer to Figure 13. In one embodiment of this application, the effective shift register 101 located in the rounded corner area NR also includes two adjacent fourth shift registers 114. The distance between the two adjacent fourth shift registers 114 is D3, where D3 < D1.

[0117] In this embodiment, at least two adjacent fourth shift register units 114 are provided with an etching point CK, which is fabricated using the same process as the shift register unit 11. This helps to further improve the etching uniformity of the rounded corner region NR. In the above embodiments, both the first shift register unit 111 and the second shift register unit 112 may include the fourth shift register unit 114.

[0118] In this application, if 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 can be set between the two adjacent effective shift register units 101; if 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 can be set between the two adjacent effective shift register units 101. This improves the etching uniformity of the rounded corner region NR.

[0119] In one embodiment of this application, as shown in Figures 5 and 11, the display area AA includes a plurality of pixel rows 200. The pixel rows 200 extend along a second direction h2 and are arranged along a 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.

[0120] 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.

[0121] The display panel 01 also includes multiple connection traces ZL, which are located in the non-display area NA. The pixel row 200 is electrically connected to the output terminal of the shift register unit 11 through the connection traces ZL.

[0122] In the rounded corner area NR, a plurality of second-type shift register units 11B include a first shift register unit 111 and a second shift register unit 112, with the second shift register unit 112 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 smaller than the width W1 of the first shift register unit 111. The number of second shift register units 112 can be less than the number of first shift register units 111.

[0123] Among them, the connecting trace ZL of the second shift register unit 112 is in a stepped shape.

[0124] In this embodiment, the connecting traces ZL electrically connected to the second shift register unit 112 are stepped, which makes the connecting traces ZL more regular. This is beneficial for rationally planning the position of the traces ZL to reduce the space occupied, and also helps to reduce the difficulty of arranging the connecting traces ZL and improve the manufacturing efficiency.

[0125] Figure 14 is an enlarged schematic diagram of another rounded corner area provided in an embodiment of this application.

[0126] As shown in Figure 14, in one embodiment of this application, the rounded corner area NR further includes an electrostatic discharge unit 300, which is located on the side of the second shift register unit 112 near the second non-display area NA2.

[0127] Along the direction perpendicular to the plane where the display panel 01 is located, the connecting trace ZL of the second shift register unit 112 overlaps with the lead-out trace CL of the electrostatic discharge unit 300.

[0128] In other words, the lead CL of the electrostatic discharge unit 300 can be located on a different film layer from some of the connecting traces ZL, and the two overlap in a direction perpendicular to the plane of the display panel 01.

[0129] Since the connection traces ZL electrically connected to the second shift register unit 112 are usually electrically connected to the pixel row 200 near 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.

[0130] In this embodiment, the connection traces ZL connected to the second shift register unit 112 overlap with the lead-out traces CL of the electrostatic discharge unit 300. Therefore, it is not necessary to increase the width of the rounded corner area NR in order to make these connection traces ZL and the lead-out traces CL of the electrostatic discharge unit 300 avoid each other, which is beneficial to further reduce the width of the rounded corner area NR.

[0131] Figure 15 is a schematic diagram of a display device provided in an embodiment of this application.

[0132] This application provides a display device 02, as shown in FIG15, including the display panel 01 provided in the above embodiments. Exemplarily, the display device 02 provided in this application is an electronic device such as a mobile phone, tablet computer, television, vehicle display, or wearable display; this application does not impose specific limitations.

[0133] In the display device 02, at least some of the second type of shift register units 11B have different step sizes. 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 which the second type of shift register unit 11B is to be electrically connected. This allows the second type of shift register unit 11B to be aligned with the pixel row 200 to which it is electrically connected. This helps to reduce 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, and reduces the space occupied by the connection trace ZL. This, in turn, helps to reduce 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 beneficial for achieving a narrow bezel on the display panel 01 and for increasing the aesthetics of the display panel 01.

[0134] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A display panel, characterized in that, It includes a display area and a non-display area, the non-display area surrounding at least a portion of the display area, the non-display area including a first non-display area, a rounded corner area and a second non-display area, the rounded corner area being located between the first non-display area and the second non-display area, and both the first non-display area and the second non-display area being connected to the rounded corner area; The display panel includes a scanning drive circuit, which includes multiple shift register units. The multiple shift register units include multiple first-type shift register units and multiple 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. In the rounded corner region, at least some of the second type of shift register units have different step sizes.

2. The display panel according to claim 1, characterized in that, In the first non-display area, multiple first-type shift register units are arranged with equal step sizes.

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

4. The display panel according to claim 1, characterized in that, The plurality of second-type shift register units include a first shift register unit and a second shift register unit, wherein the second shift register unit is located on the side of the first shift register unit closer 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, and the first direction is the width direction of the rounded corner area.

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

6. The display panel according to claim 5, characterized in that, The plurality of second-type shift register units also include a third shift register unit, which 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 smaller than the width of the first shift register unit and larger than the width of the second shift register unit.

7. The display panel according to claim 1, characterized in that, The plurality of second-type shift register units include a first shift register unit and a second shift register unit, wherein the second shift register unit is located on the side of the first shift register unit closer to the second non-display area; In the plurality of the first shift registers, at least some of the first shift registers have different step sizes.

8. The display panel according to claim 7, characterized in that, In the plurality of second shift registers, at least some of the second shift registers have different step sizes.

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

10. The display panel according to claim 1, characterized in that, The display area includes multiple pixel rows, which extend along a second direction and are arranged along a third direction, wherein the second direction intersects the third direction; The display panel includes multiple connection traces, and the pixel row is electrically connected to the output terminal of the shift register unit via the connection traces; wherein, in at least a portion of the second type of shift register units and the pixel row to which they are electrically connected, at least a portion of the output terminals of the same second type of shift register unit overlap with the pixel row in the second direction.

11. The display panel according to claim 10, characterized in that, The plurality of second-type shift register units include a first shift register unit and a second shift register unit, wherein the second shift register unit is located on the 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, and one first shift register unit is electrically connected to at least one scan line in the pixel row; the multiple output terminals of the first shift register unit include a first-position output terminal and a last-position output terminal, the multiple scan lines electrically connected to the first shift register unit include a first-position scan line and a last-position scan line, the first-position output terminal is electrically connected to the first-position scan line, and the last-position output terminal is electrically connected to the last-position scan line; Specifically, in the third direction, the distance between the first output terminal and the first scan line is within a preset range, and / or the distance between the last output terminal and the last scan line is within a preset range.

12. The display panel according to claim 11, characterized in that, In the third direction, the distance between the first output terminal and the first scan line is Y1, and the distance between the last output terminal and the last scan line is Y2, where Y1+Y2≤X / 2; Where X is the placement size of the two adjacent pixel rows on the third side.

13. The display panel according to claim 10, characterized in that, The plurality of second-type shift register units include a first shift register unit and a second shift register unit, wherein the second shift register unit is located on the side of the first shift register unit closer to the second non-display area; The first shift register unit includes multiple output terminals, and one first shift register unit is electrically connected to at least two pixel rows; the multiple output terminals of the first shift register unit include a first-position output terminal and a last-position output terminal, and the at least two pixel rows electrically connected to the first shift register unit include a first-position pixel row and a last-position pixel row; the first-position output terminal is electrically connected to the first-position pixel row, and the last-position output terminal is electrically connected to the last-position pixel row; In the second direction, the first output terminal overlaps with the first pixel row, and / or the last output terminal overlaps with the last pixel row.

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

15. The display panel according to claim 10, characterized in that, The plurality of connection traces include a first type of connection trace, which is located in the rounded corner area. The first type of connection trace includes a first connection trace and a second connection trace. In the rounded corner region, the first connection trace and the second connection trace are located in different film layers.

16. The display panel according to claim 15, characterized in that, The plurality of second-type shift register units include a first shift register unit and a second shift register unit, wherein the second shift register unit is located on the 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, there are adjacent first output terminals and second output terminals. In the adjacent first output terminal and 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, characterized in that, Of the 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, characterized in that, 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 traces and the second connection traces 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 extension direction of the rounded corner area. The effective shift register unit located in the rounded corner area includes two adjacent third shift register units, and the distance between the two adjacent third shift register units is D2, where D2 ≥ D1; The virtual shift register is provided between at least two adjacent third shift registers.

20. The display panel according to claim 19, characterized in that, The effective shift register unit located in the rounded corner area also includes two adjacent fourth shift register units, and the distance between the two adjacent fourth shift register units is D3, where D3 < D1; In particular, at least some of the two adjacent fourth shift register units are provided with etched points.

21. 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 number of virtual shift register units in the second type of shift register unit is no more than 5.

22. The display panel according to claim 1, characterized in that, The display area includes multiple pixel rows, which extend along a second direction and are arranged along a third direction, wherein the second direction intersects the third direction; The display panel includes multiple connection traces, and the pixel row is electrically connected to the output terminal of the shift register unit via the connection traces; the plurality of second-type shift register units include a first shift register unit and a second shift register unit, the second shift register unit... The storage unit is located on the side of the first shift register unit closer to the second non-display area; The connection traces electrically connected to the second shift register unit are in a stepped shape.

23. The display panel according to claim 22, characterized in that, The rounded corner area also includes an electrostatic discharge unit, which is located on the side of the second shift register unit near the second non-display area; Along a direction perpendicular to the plane of the display panel, a portion of the connection traces connected to the second shift register unit overlaps with the lead-out lines of the electrostatic discharge unit.

24. A display device, characterized in that, Includes the display panel as described in any one of claims 1-23.

Images