Display panel and display device

Abstract

The application relates to a display panel and a display device. The display panel comprises a display area, a hole area, a plurality of first signal lines and a plurality of second signal lines. The display area surrounds at least part of the hole area, the hole area comprises two or more through holes, and the two or more through holes are distributed at intervals along a first direction. The plurality of first signal lines extend along a second direction and are arranged at intervals in the first direction, part of the first signal lines are cut off by the through holes along the first direction, and the first signal lines are configured as gate signal lines. The plurality of second signal lines extend along the first direction and are arranged at intervals in the second direction, the through holes divide part of the second signal lines into two parts, a winding part is arranged to connect the two parts of the signal lines, the winding part is distributed around the circumferential side of the through hole, and the winding part is distributed at intervals along the second direction. The application cancels the winding treatment of the first signal lines, reduces the winding on the circumferential side of the through hole, and reduces the space occupied by the winding part on the circumferential side of the through hole in the display area.

Description

Technical Field

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

[0002] As the market develops, consumers have increasingly stringent requirements for display effects. Full-screen technology, through ultra-narrow bezels or even borderless designs, pursues a larger screen-to-body ratio, maximizing the display area without changing the overall body, resulting in a more stunning display effect. However, the structural design of full-screen displays requires punching holes in the panel display area to install components such as cameras, earpieces, and sensors.

[0003] For displays with dual camera holes, the presence of these holes causes the traces corresponding to the pixel structure in the display area to extend along the edge of the hole area, resulting in denser traces at the edge of the hole area. Excessive traces lead to a larger edge in the hole area, occupying more display area and affecting the screen-to-body ratio. Summary of the Invention

[0004] The display panel and display device provided in this application embodiment can effectively reduce the area of ​​the non-display area and increase the screen ratio.

[0005] On one hand, an embodiment of this application proposes a display panel, comprising: a display area; an aperture area, the display area surrounding at least a portion of the aperture area, the aperture area including two or more through holes, the two or more through holes being spaced apart along a first direction; a plurality of first signal traces extending along a second direction and spaced apart along the first direction, a portion of the first signal traces extending along the first direction being cut off by through holes, the first signal traces being configured as gate signal traces; and a plurality of second signal traces extending along the first direction and spaced apart along the second direction, a through hole dividing a portion of the second signal traces into two parts, a winding portion connecting the two parts of the signal traces, the winding portion being distributed around the periphery of the through hole, the winding portion being spaced apart along the second direction, the first direction intersecting the second direction.

[0006] On the other hand, embodiments of this application also provide a display device, including a display panel as described above. Functional modules are located within through-holes.

[0007] According to the display panel and display device provided in this application, the first signal trace, namely the gate signal trace, extends along the first direction, and a portion of the first signal trace is cut off by a via. The vias in the via area are set to be spaced apart in the first direction, so that any two vias do not intersect in the second direction. Consequently, there is no display area between any two vias in the extension direction of the second direction. After the first signal trace extends to the edge of the via, it does not need to be wound. On the opposite side edge, another portion of the first signal trace continues the cut-off first signal trace in the display panel to realize the display of the image in the peripheral area of ​​the via in the second direction. Furthermore, the winding process of the first signal trace is eliminated, the winding around the via is reduced, and the space occupied by the winding portion around the via in the display area is reduced. Attached Figure Description

[0008] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0009] Figure 1 A top view of a display panel provided for some embodiments of this application;

[0010] Figure 2 for Figure 1 A schematic diagram of an enlarged structure of Q;

[0011] Figure 3 for Figure 1 Another enlarged structural diagram of the Q-type;

[0012] Figure 4 for Figure 1 Another enlarged structural diagram of the Q-type;

[0013] Figure 5 for Figure 1 Another enlarged structural diagram of the Q-type;

[0014] Figure 6 for Figure 5 A schematic diagram of a cross-sectional structure of AA;

[0015] Figure 7 for Figure 5 Another cross-sectional structural diagram of AA;

[0016] Figure 8 for Figure 5 Another cross-sectional structural diagram of AA;

[0017] Figure 9 for Figure 5 Another cross-sectional structural diagram of AA;

[0018] Figure 10 for Figure 1Another enlarged structural diagram of the Q-type;

[0019] Figure 11 for Figure 10 A schematic diagram of a cross-sectional structure of BB;

[0020] Figure 12 for Figure 10 A schematic diagram of a cross-sectional structure of CC;

[0021] Figure 13 for Figure 1 Another enlarged structural diagram of the Q-type.

[0022] Marker explanation:

[0023] 100. Display panel; AA. Display area; NA. Non-display area; NA1. First area; NA2. Second area;

[0024] 1. Hole area; 11. Through hole; 111. First hole; 112. Second hole;

[0025] 2. First signal routing;

[0026] 3. Second signal trace; 31. Straight section; 311. First sub-straight section; 312. Second sub-straight section;

[0027] 4. Winding section; 41. First sub-winding section; 42. Second sub-winding section; 43. First winding; 44. Second winding;

[0028] M1, first metal layer; M11, first sub-metal layer; M12, second sub-metal layer;

[0029] M2, second metal layer; M3, third metal layer; M4, fourth metal layer;

[0030] 5. First via;

[0031] 6. Second via; 61. First sub-via; 62. Second sub-via;

[0032] 7. Third via;

[0033] X, the first direction; Y, the second direction.

[0034] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0035] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit it. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating examples.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0037] As displays become increasingly sophisticated, they not only need a large screen-to-body ratio but also need to consider overall aesthetics. Currently, to enable front-facing cameras, perforated areas are created in the display panel to house the camera components. However, to meet diverse user needs for photos and improve the response time of application devices, multiple perforations are used to house different camera components.

[0038] To increase screen-to-body ratio, display panels often incorporate perforated areas within the display area. This means the display area surrounds the perforated area, and the perforations themselves also function as display points, enhancing the overall image quality. Typically, for aesthetic reasons, the perforations are aligned horizontally. However, display panels often have numerous traces that need to bypass the periphery of these perforations. For example, to ensure proper display across multiple perforations, winding of reset signal lines, gate signal lines, drive signal lines, and other signal lines is necessary, making this process very challenging.

[0039] Therefore, in order to solve the above problems, this application proposes a display panel and a display device.

[0040] To better understand this application, on the one hand, the following will combine... Figures 1 to 13 The embodiments described herein will be described in detail.

[0041] Figure 1 This is a top view of a display panel provided in some embodiments of this application. Figure 2 for Figure 1 A schematic diagram of an enlarged structure of Q. Figure 3 for Figure 1 Another enlarged structural diagram of the Q-type. Figure 4 for Figure 1 Another enlarged structural diagram of the Q-type.

[0042] like Figures 1 to 4 As shown, this application embodiment provides a display panel 100 including a display area AA, an aperture area 1, multiple first signal lines 2, and multiple second signal lines 3. The display area AA surrounds at least a portion of the aperture area 1, and the aperture area 1 includes two or more through holes 11, which are spaced apart along a first direction X. The multiple first signal lines 2 extend along a second direction Y and are spaced apart along the first direction X. A portion of the first signal lines 2 extending along the first direction X is cut off by the through holes 11, and the first signal lines 2 are configured as gate signal lines. The multiple second signal lines 3 extend along the first direction X and are spaced apart along the second direction Y. The through holes 11 divide a portion of the second signal lines 3 into two parts, and a winding portion 4 is provided to connect the two parts of the signal lines. The winding portion 4 is distributed around the periphery of the through hole 11 and is spaced apart along the second direction Y. The first direction X and the second direction Y intersect.

[0043] In the embodiments of this application, the display panel 100 may be any one of an Organic Light Emitting Diode (OLED) display panel 100, a Quantum-dot Light Emitting Diode (QLED) display panel 100, or a Micro Light Emitting Diode (Micro LED) display panel 100, and is not limited thereto. The following discussion will only use an OLED display panel 100 as an example.

[0044] The display panel 100 includes a display area AA and a hole area 1. The display area AA refers to the area with display function. The display area AA may include at least part of the hole area 1. For example, when a camera is placed in the display area AA and surrounded by the display area AA, the main body of the display area AA has display function while also including a small amount of non-display function area.

[0045] This application does not impose a specific limitation on the number of through holes 11 in the hole region 1. For example, the hole region 1 includes two or more through holes 11. The following is a detailed discussion based on the example of the hole region 1 having two through holes 11.

[0046] In this embodiment, the shape of the through hole 11 in the hole area 1 is not specifically limited. For example, the orthographic projection shape of the through hole 11 on the display surface along the light emission direction of the display panel 100 includes a circle, an ellipse, a rectangle, or other shapes. It is understood that the shapes of the two through holes 11 can be the same or different to adapt to different application environments.

[0047] In this embodiment of the application, no specific limitation is placed on the size between the two through holes 11 in the hole area 1. For example, the size between the two through holes 11 can be the same, or the size between the two through holes 11 can be different.

[0048] like Figure 3 and Figure 4 As shown, the first hole 111 and the second hole 112 of the two through holes 11 are spaced apart along the first direction. Based on this, the embodiments of this application do not impose special limitations on the positions of the first hole 111 and the second hole 112 in the second direction Y. For example, as shown... Figure 3 As shown, the sum of the dimensions of the first hole 111 and the second hole 112 in the second direction Y can be greater than the maximum distance from the outer edge of the first hole 111 along the second direction Y to the outer edge of the second hole 112 along the second direction Y. Figure 4 As shown, the first hole 111 and the second hole 112 are also spaced apart in the second direction Y.

[0049] In this embodiment, a plurality of first signal traces 2 are provided on the display panel 100, and the first signal traces 2 are spaced apart along the first direction X. One of the first signal traces 2 passing through the via 11 is cut into two segments: one segment extends from one opposite edge of the display panel 100 along the second direction Y to the edge of the via 11, and the other segment extends from the other opposite edge of the display panel 100 along the second direction Y to the other opposite edge of the via 11 along the second direction Y. Since the first signal traces 2 are configured as gate signal traces, they are driven by bilateral signals. In other words, the first signal traces 2 transmit driving signals from the two opposite edges of the display panel 100 along the second direction Y to the center of the display panel 100. Therefore, one segment of the cut first signal trace 2 transmits a signal from one opposite edge of the display panel 100 along the second direction Y to the other opposite edge of the via 11 along the second direction Y. Another segment of the first signal trace 2 in the first signal trace 2 that has been cut off transmits a signal from the opposite edge of the display panel 100 along the second direction Y to the opposite edge of the through hole 11 along the second direction Y, so as to realize the normal display of the area around the through hole 11 in the display panel 100.

[0050] It is understandable that in the display panel 100, other signal traces extending along the second direction Y and driven on both sides are arranged in the same way as gate signal traces when passing through the via 11. For example, scan signal lines (scan lines), reference voltage lines (Vref lines), and emission control signal lines (emit lines) are also arranged in the same way.

[0051] In this embodiment, the multiple second signal traces 3 and multiple first signal traces 2 disposed in the display panel 100 intersect each other. The multiple second signal traces 3 extend along the first direction X and are spaced apart along the second direction Y. The second signal traces 3 passing through the through hole 11 are cut into two parts. It can be understood that the second signal traces 3 are driven on one side. In other words, the second signal traces 3 emit drive signals along the opposite edge of the display panel 100 along the first direction X. Therefore, the second signal traces 3 need to extend from the opposite edge of the display panel 100 along the first direction X to the opposite edge of the display panel 100 along the first direction X. When the second signal traces 3 pass through the through hole 11, a winding portion 4 needs to bypass the through hole 11 to ensure that the drive signals emitted by the second signal traces 3 can be emitted from the opposite edge of the display panel 100 along the first direction X to the opposite edge of the display panel 100 along the first direction X, so as to realize the normal display of the display panel 100. Optionally, the second signal trace 3 may include a data signal line (Data line) and a positive power supply voltage signal line (PVDD line), etc.

[0052] This application embodiment does not impose specific limitations on the winding method of the winding portion 4. For example, the winding extension direction of the winding portion 4 matches the edge shape of the through hole 11. Alternatively, the winding extension direction of the winding portion 4 includes a first direction X and a second direction Y, thereby connecting the two parts of the second signal trace 3. It is understood that the winding portions 4 are spaced apart along the second direction Y to connect the two parts of the second trace.

[0053] According to the display panel 100 and display device provided in this application, the first signal trace 2 extends along the first direction X, and a portion of the first signal trace 2 is cut off by the through hole 11. The through holes 11 in the hole area 1 are arranged to be spaced apart in the first direction X, so that any two through holes 11 do not intersect in the second direction Y. Therefore, there is no display area AA between any two through holes 11 in the extension direction of the second direction Y. After the first signal trace 2 extends to the edge of the through hole 11, it does not need to be wound. The opposite edge is extended in the display panel 100 by another portion of the first signal trace 2, which is cut off. This realizes the display of the image in the peripheral area of ​​the through hole 11 in the second direction Y. The winding process of the first signal trace 2 is eliminated, the winding around the through hole 11 is reduced, and the space occupied by the winding part 4 around the through hole 11 in the display area AA is reduced.

[0054] like Figure 4 As shown, in one optional implementation, the through hole 11 includes a first hole 111 and a second hole 112, and the angle between the line connecting the center points of the first hole 111 and the second hole 112 and the second direction Y is greater than 0 degrees.

[0055] In some optional embodiments of this application, the shapes of the first hole 111 and the second hole 112 projected onto the light-emitting direction of the display panel 100 both include circles. The angle α between the line connecting the center point of the first hole 111 and the center point of the second hole 112 and the second direction Y is greater than 0 degrees. For example, as shown... Figure 3 As shown, the minimum angle α between the line connecting the center point of the first hole 111 and the center point of the second hole 112 and the second direction Y is an acute angle.

[0056] It is understood that the embodiments of this application do not impose specific restrictions on the size and shape of the first hole 111 and the second hole 112, as long as the first hole 111 and the second hole 112 are spaced apart along the first direction X.

[0057] Please continue reading. Figure 4 As an optional implementation, the distance between the outer edges of the first hole 111 and the second hole 112 along the first direction X or the second direction Y is greater than the sum of the dimensions of the first hole 111 and the second hole 112 in the corresponding directions.

[0058] It is understood that the outer edge of the first hole 111 is the edge of the first hole 111 facing away from the second hole 112 in any direction. The outer edge of the second hole 112 is the edge of the second hole 112 facing away from the first hole 111 in any direction. For example, the outer edge of the first hole 111 includes the edge of the first hole 111 facing away from the second hole 112 in a first direction X and the edge of the first hole 111 facing away from the second hole 112 in a second direction Y. The outer edge of the second hole 112 includes the edge of the second hole 112 facing away from the first hole 111 in the first direction X and the edge of the second hole 112 facing away from the first hole 111 in the second direction Y.

[0059] like Figure 4As shown, in some embodiments of this application, the minimum distance between the outer edge of the first hole 111 along the first direction X and the outer edge of the second hole 112 along the first direction X is D1, the dimension of the first hole 111 along the first direction X is d1, and the dimension of the second hole 112 along the first direction X is d2. The relationship between D1, d1, and d2 satisfies D1 > d1 + d2. Similarly, the minimum distance between the outer edge of the first hole 111 along the second direction Y and the outer edge of the second hole 112 along the second direction Y is D2, the dimension of the first hole 111 along the second direction Y is d3, and the dimension of the second hole 112 along the second direction Y is d4. The relationship between D2, d3, and d4 satisfies D2 > d3 + d4, realizing different arrangement methods of the first hole 111 and the second hole 112. Of course, the dimensional relationship between the first hole 111 and the second hole 112 is not limited to the above relationship. It can ensure that the first hole 111 and the second hole 112 are spaced apart in the first direction, so that the signal trace of the display area between the first hole 111 and the second hole 112 in the second direction is only cut off by a through hole 11 in the second direction Y.

[0060] Please continue reading. Figure 2 As an optional implementation, the winding portion 4 includes a first sub-winding portion 41 and a second sub-winding portion 42, the first sub-winding portion 41 being disposed around the first hole 111, and the second sub-winding portion 42 being disposed around the second hole 112.

[0061] Taking the first hole 111 as an oblong hole and the second hole 112 as a circular through hole 11 as an example, the winding in the winding part 4 is arranged according to the shape of the first hole 111 and the second hole 112 to reduce the space occupied by the winding part 4. For example, the winding direction of the first sub-winding part 41 matches the shape of the oblong hole of the first hole 111, and the winding direction of the second sub-winding part 42 matches the circular shape of the second hole 112, so that the first sub-winding part 41 and the second sub-winding part 42 can connect the second signal trace 3 passing through the through hole 11, while reducing the space occupied by the first sub-winding part 41 and the second sub-winding part 42 in the display panel 100.

[0062] Figure 5 for Figure 1 Another enlarged structural diagram of the Q-type. Figure 6 for Figure 5 A schematic diagram of a cross-sectional structure of AA.

[0063] like Figure 5 and Figure 6As shown, in one optional implementation, the display panel 100 includes a plurality of metal layers arranged sequentially along the thickness direction of the display panel 100, with adjacent metal layers being insulated from each other. The second signal trace 3 is located in any one of the plurality of metal layers. The second signal trace 3 also includes a straight section 31, a portion of which is divided into two parts by a through hole 11. A winding section 4 connects the two parts of the straight section 31, and at least one of the first sub-winding section 41 and the second sub-winding section 42 is arranged in a different layer from the straight section 31 to which it is connected.

[0064] Taking the OLED display panel 100 as an example, the display panel 100 includes multiple metal layers, and adjacent metal layers are insulated from each other by an insulating layer. The second signal trace 3 can be located in any of the multiple metal layers. The second signal trace 3 includes a straight section 31, a portion of which needs to pass through a through-hole 11. The straight section 31 passing through the through-hole 11 is divided into two parts by the straight section 31. Of course, these two parts of the straight section 31 need to be connected by a winding section 4.

[0065] This application embodiment does not impose specific restrictions on the positions of the first sub-winding portion 41 and the second sub-winding portion in the metal layer of the winding portion 4. For example, the first sub-winding portion 41 and the second sub-winding portion 42 are located in the same metal layer. Alternatively, the first sub-winding portion 41 and the second sub-winding portion 42 are located in different metal layers. The first sub-winding portion 41 and the second sub-winding portion 42 can both be disposed in the same layer as the second signal trace 3. Of course, the first sub-winding portion 41 can be disposed in a different layer from the second signal trace 3, or the second sub-winding portion 42 can be disposed in a different layer from the second signal trace 3, or both the first sub-winding portion 41 and the second sub-winding portion 42 can be disposed in a different layer from the second signal trace 3. When the winding portion 4 and the second signal trace 3 are disposed in a different layer, the number of traces in the metal layer where the second signal trace 3 is located can be reduced, the possibility of interference between the winding portion 4 and the second signal trace 3 can be reduced, and the winding difficulty can be reduced.

[0066] Please continue reading. Figure 5 and Figure 6 As an optional implementation, the display panel 100 includes a first metal layer M1, a second metal layer M2 and a third metal layer M3 arranged sequentially along the thickness direction of the display panel 100. Multiple first signal traces 2 are located in the first metal layer M1 and second signal traces 3 are located in the third metal layer M3, thereby avoiding interference between the first signal traces 2 and the second signal traces 3.

[0067] This application does not impose specific limitations on the film layers containing the first metal layer M1, the second metal layer M2, and the third metal layer M3. For example, if the first metal layer M1 is located on the side of the second metal layer M2 facing away from the light-emitting surface of the display panel 100, then the third metal layer M3 is located on the side of the second metal layer M2 facing the light-emitting surface of the display panel 100. Specifically, the first metal layer M1 can be used to form the gate of the pixel circuit and the electrode plate of the storage capacitor. The second metal layer M2 is used to form the source and drain of the driving transistor, and the third metal layer M3 can be used to form the data lines of the pixel circuit.

[0068] Please continue reading. Figure 5 As an optional implementation, the display panel 100 also includes a non-display area NA, which at least partially surrounds the through hole 11, and a display area AA at least partially surrounds the non-display area NA. The non-display area NA includes a first area NA1 and a second area NA2, with the first area NA1 disposed around the first hole 111 and the second area NA2 disposed around the second hole 112.

[0069] The display panel 100 includes a non-display area NA, in which peripheral wiring necessary for display and other functions can be configured. Furthermore, a portion of the non-display area NA is located within the display area AA, used for configuring the peripheral wiring of the hole area 1 within the display area AA.

[0070] In some optional embodiments, there is a gap between the first hole 111 and the second hole 112 in the hole area 1, and there is also a certain gap between the first area NA1 in the non-display area NA surrounding the first hole 111 and the second area NA2 in the non-display area NA surrounding the second hole 112, which can reduce the possibility of interference between the peripheral wiring of the first hole 111 and the peripheral wiring of the second hole 112. Of course, the edges of the first area NA1 and the second area NA2 in the non-display area NA can also be in contact, as long as it can ensure that the first signal trace 2 cut off by the first hole 111 is not cut off by the second hole 112.

[0071] Please continue reading. Figure 5 and Figure 6 As an optional implementation, a first via 5 is provided between the second metal layer M2 and the third metal layer M3, at least part of the winding portion 4 is located in the second metal layer M2, and the winding portion 4 is located in the first region NA1 and the second region NA2. The winding portion 4 connects the straight portion 31 of the two parts through the first via 5.

[0072] At least a portion of the winding portion 4 is located in the second metal layer M2. For example, all the winding portions 4 are located in the second metal layer M2, or a portion of the winding portions 4 are located in the second metal layer M2. For example, the first sub-winding portion 41 is located in the second metal layer M2, or the second sub-winding portion 42 is located in the second metal layer M2.

[0073] Taking the second signal trace 3 located in the third metal layer M3 and the partial winding portion 4 located in the second metal layer M2 as an example, the two straight portions 31 cut off in the second signal trace 3 include a first sub-straight portion 311 and a second sub-straight portion 312. The first sub-straight portion 311 extends to the edge of the through hole 11 opposite to the first direction X and then overlaps with the winding portion 4 through a first via 5. The winding portion 4 extends in the second metal layer M2, and its extension direction can match the circumferential shape of the through hole 11. The winding portion 4 extends to the other edge of the through hole 11 opposite to the first direction X and then overlaps with the second sub-straight portion 312 through a first via 5. It can be understood that first vias 5 are provided on both sides of the through hole 11 opposite to each other in the first direction X so that the winding portion 4 and the second signal trace 3 can be connected to different film layers.

[0074] It should be noted that the second metal layer M2 is located on the side of the third metal layer M3 that faces away from the light-emitting surface of the display panel 100. The second signal trace 3 and the winding part 4 are connected by different film layers. The winding part 4 located in the second metal layer M2 needs to be provided with a non-display area NA, so as to avoid interference between the winding part 4 and the source and drain of the driving transistor.

[0075] Figure 7 for Figure 5 Another cross-sectional structural diagram of AA.

[0076] like Figure 5 and Figure 7 As shown, in one optional embodiment, a second via 6 is provided between the first metal layer M1 and the second metal layer M2, and a portion of the winding portion 4 is located in the first metal layer M1. The winding portion 4 connects the straight portion 31 of the two portions through the first via 5 and the second via 6.

[0077] This application does not impose specific limitations on the film layer where the winding portion 4 is located. For example, a portion of the winding portion 4 is located in the first metal layer M1, and its extension direction in the first metal layer M1 matches the shape of the periphery of the through hole 11. Another portion of the winding portion 4 is located in the third metal layer M3, and the two portions of the winding portion 4 can be electrically connected through the first through hole 5 and the second through hole 6. Alternatively, all of the winding portion 4 may be located in the first metal layer M1.

[0078] Continuing with the example of the second signal trace 3 located in the third metal layer M3 and the winding portion 4 located in the first metal layer M1, the first sub-straight portion 311 extends to the edge of the through hole 11 opposite to the first direction X, and then connects with the winding portion 4 through the first via 5 and the second via 6. The winding portion 4 extends in the first metal layer M1, and its extension direction can match the circumferential shape of the through hole 11. After the winding portion 4 extends to the other edge of the through hole 11 opposite to the first direction X, it connects with the second sub-straight portion 312 through the first via 5 and the second via 6. It can be understood that the second via 6 is provided on both sides of the through hole 11 opposite to the first direction X, and the first via 5 and the second via 6 can coincide when projected onto the light-emitting surface of the display panel 100, so that the winding portion 4 and the second signal trace 3 can be connected to different film layers. The winding method of switching from the third metal layer M3 to the first metal layer M1 and then back to the third metal layer M3 is achieved by using two vias, the first via 5 and the second via 6, which can reduce the difficulty of via fabrication.

[0079] It should be noted that the first metal layer M1 is located on the side of the third metal layer M3 that faces away from the light-emitting surface of the display panel 100. The second signal trace 3 and the winding part 4 are connected by different film layers. The winding part 4 located in the first metal layer M1 needs to be provided with a non-display area NA, so as to avoid interference between the winding part 4 and the gate of the pixel circuit and the electrode plate of the storage capacitor.

[0080] Figure 8 for Figure 5 Another cross-sectional structural diagram of AA. Figure 9 for Figure 5 Another cross-sectional structural diagram of AA.

[0081] like Figure 5 , Figure 8 as well as Figure 9 As shown, in one optional embodiment, the first metal layer M1 includes a first sub-metal layer M11 and a second sub-metal layer M12 stacked sequentially. The second via 6 includes a first sub-via 61 and a second sub-via 62. The first sub-via 61 is located between the first sub-metal layer M11 and the second metal layer M2, and the second sub-via 62 is located between the second sub-metal layer M12 and the second metal layer M2. At least one of the first sub-winding portion 41 and the second sub-winding portion 42 is located in the first sub-metal layer M11, and at least one of the first sub-winding portion 41 and the second sub-winding portion 42 connects the two straight portions 31 through the first via 5 and the first sub-via 61. Alternatively, at least one of the first sub-winding portion 41 and the second sub-winding portion 42 is located in the second sub-metal layer M12, and at least one of the first sub-winding portion 41 and the second sub-winding portion 42 connects the two straight portions 31 through the first via 5 and the second sub-via 62.

[0082] In some optional embodiments, the first metal layer M1 includes a first sub-metal layer M11 and a second sub-metal layer M12. The second sub-metal layer M12 is located on the side of the second metal layer M2 that faces away from the light-emitting surface of the display panel 100, and the first sub-metal layer M11 is located on the side of the second sub-metal layer M12 that faces away from the light-emitting surface of the display panel 100. The first sub-metal layer M11 can be used to form the gate of a pixel circuit and one electrode plate of a storage capacitor. The first sub-metal layer M11 can also be used to form another electrode plate of the storage capacitor.

[0083] This application embodiment does not impose specific limitations on the film layers where the first sub-winding portion 41 and the second sub-winding portion 42 are located in the winding portion 4. For example, the first sub-winding portion 41 is located in the first sub-metal layer M11. Alternatively, the first sub-winding portion 41 is located in the second sub-metal layer M12. And / or, the second sub-winding portion 42 is located in the first sub-metal layer M11, or the second sub-winding portion 42 is located in the second sub-metal layer M12.

[0084] Taking an example where the first sub-winding section 41 is located in the first sub-metal layer M11 and the second sub-winding section 42 is located in the second sub-metal layer M12. Figure 5 and Figure 8 As shown, the second sub-via 62 is located between the second sub-metal layer M12 and the second metal layer M2, and the second sub-winding portion 42 connects the straight portion 31 of the two parts through the second sub-via 62 and the first via 5. Figure 5 and Figure 9 As shown, the first sub-via 61 is located between the first sub-metal layer M11 and the second metal layer M2, and the first sub-winding portion 41 connects the straight portion 31 of the two parts through the first sub-via 61 and the first via 5.

[0085] It is understandable that the orthographic projection of the first sub-via 61 in the light-emitting direction of the display panel 100 and the orthographic projection of the second sub-via 62 in the light-emitting direction of the display panel 100 are spaced apart to avoid the winding portion 4 passing through the second sub-via 62 falling into the first sub-via 61, causing the two straight sections 31 that are cut off in the second signal trace 3 to be incorrectly connected.

[0086] Figure 10 for Figure 1 Another enlarged structural diagram of the Q-type.

[0087] like Figure 10 As shown, in one optional embodiment, the winding portion 4 is located in the display area AA, and the display area AA surrounds the through hole 11.

[0088] In some optional embodiments, the winding portion 4 can be wound through the display area AA. In this case, it is not necessary to set a non-display area NA around the through hole 11, thereby reducing the area occupied by the hole area 1 in the display area AA and increasing the screen ratio of the display panel 100.

[0089] Please continue reading. Figure 10 As an optional implementation, the winding portion 4 includes a first winding 43 and a second winding 44. The first winding 43 extends along a first direction X, and the second winding 44 extends along a second direction Y. The second winding 44 includes two parts spaced apart along the first direction X. The two parts of the second winding 44 are electrically connected by the first winding 43, and the second winding 44 is electrically connected to the straight portion 31 of the second signal line.

[0090] It is understood that the first winding 43 and the second winding 44 are both located on the periphery of the through hole 11. The first winding 43 extends along the first direction X and the second winding 44 extends along the second direction Y to simplify the arrangement of the first winding 43 and the second winding 44.

[0091] In some optional embodiments of this application, the winding portion 4 includes a first winding 43 and a second winding 44. The first winding 43 extends along a first direction X around the periphery of the through hole 11. The second winding 44 consists of two parts: one part is electrically connected to the first sub-straight section 311 in the cut-off straight section 31, and the other part is electrically connected to the second sub-straight section 312 in the cut-off straight section 31. These two parts of the second winding 44 are electrically connected through the first winding 43, so that the cut-off second signal trace 3 can still be used normally after passing through the area of ​​the through hole 11.

[0092] Figure 11 for Figure 10 A schematic diagram of a cross-sectional structure of BB.

[0093] like Figure 11 As shown, in an optional embodiment, the display panel 100 further includes a fourth metal layer M4, which is located on the side of the third metal layer M3 facing away from the second metal layer M2. A third via 7 is provided between the third metal layer M3 and the fourth metal layer M4. A first winding 43 is located on the fourth metal layer M4, and a second winding 44 is located on the third metal layer M3. The first winding 43 is electrically connected to the second winding 44 through the third via 7.

[0094] Optionally, the fourth metal layer M4 is located on the surface of the pixel opening facing the light-emitting surface of the display panel 100, so as to avoid interference between the fourth metal layer M4 and the metal layer in the pixel circuit.

[0095] Continuing with the example of the second signal trace 3 located in the third metal layer M3, the display panel 100 also includes a fourth metal layer M4. The fourth metal layer M4 is located on the surface of the pixel opening facing the light-emitting surface of the display panel 100. The second winding 44 is electrically connected to the straight portion 31 of the two parts. The first winding 43 is electrically connected to the second winding 44 through the third via 7. The first winding 43 is located in the fourth metal layer M4. The first winding 43 can extend directly between multiple pixel openings without interfering with other metal layers in the pixel circuit. Therefore, it is possible to achieve the extension of the winding portion 4 in the display area AA without setting a non-display area NA, thereby reducing the area occupied by the hole area 1 in the display area AA and increasing the screen ratio of the display panel 100.

[0096] Figure 12 for Figure 10 A schematic diagram of a cross-sectional structure of CC.

[0097] like Figure 12 As shown, in an optional embodiment, the first winding 43 and the second winding 44 are both located in the fourth metal layer M4. A third via 7 is provided between the third metal layer M3 and the fourth metal layer M4. The second winding 44 is electrically connected to the straight portion 31 of the second signal trace 3 through the third via 7.

[0098] In some optional embodiments of this application, taking the second signal trace 3 located in the third metal layer M3 as an example, the first winding 43 and the second winding 44 are both located in the fourth metal layer M4. Then, the straight portion 31 of the second winding 44 and the second signal trace 3 needs to pass through the third via 7 to realize the electrical connection between the second winding 44 and the second signal trace 3. The first winding 43 and the second winding 44 in the same layer can be manufactured together, reducing the manufacturing process of the winding portion 4.

[0099] It is understandable that when the first winding 43 and the second winding 44 are both located in the fourth metal layer M4, the first winding 43 and the second winding 44 can extend between multiple pixel openings, so that the first winding 43 and the second winding 44 are wound in the display area AA, without the need to set a non-display area NA on the periphery of the hole area 1, reducing the area occupied by the hole area 1 in the display area AA and increasing the screen ratio of the display panel 100.

[0100] Figure 13 for Figure 1 Another enlarged structural diagram of the Q-type.

[0101] like Figure 13As shown, in one optional implementation, the first hole 111 is at least partially surrounded by the non-display area NA, the display area AA is at least partially surrounded by the non-display area NA, the second hole 112 is at least partially surrounded by the display area AA, the first sub-winding portion 41 is located in the non-display area NA, and the second sub-winding portion 42 is located in the display area AA.

[0102] This application does not impose specific limitations on the winding method of the through hole 11. For example, the winding method around the first hole 111 can be achieved by setting the first sub-winding portion 41 in the first metal layer M1 and / or the second metal layer M2. In this case, a non-display area NA needs to be set around the first hole 111, and the first sub-winding portion 41 extends in the non-display area NA to achieve the winding around the first hole 111. The winding method around the second hole 112 can be achieved by setting the second sub-winding portion 42 in the fourth metal layer M4. In this case, a non-display area NA is not required around the second hole 112, and the second sub-winding portion 42 extends in the display area AA to achieve the winding around the second hole 112. Of course, the winding method around the first hole 111 and the winding method around the second hole 112 can also be the same, as long as it ensures that the winding portion 4 around the first hole 111 and the winding portion 4 around the second hole 112 do not interfere with each other.

[0103] On the other hand, this application embodiment also provides a display device including a display panel 100 and a functional module, wherein the display panel 100 includes any of the display panels 100 described above. Since the display device provided in this application embodiment includes the display panel 100 of any of the above embodiments, the display device provided in this application embodiment has the beneficial effects of the display panel 100 of any of the above embodiments, which will not be repeated here.

[0104] The functional modules in this application include devices such as cameras, earpieces, and sensors that enable display functions or other functions.

[0105] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0106] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: Display area; A hole area, the display area surrounding at least a portion of the hole area, the hole area including two or more through holes, the two or more through holes being spaced apart along a first direction; the through holes include a first hole and a second hole; Multiple first signal traces extend along a second direction and are spaced apart in the first direction. Some of the first signal traces extending along the first direction are cut off by the vias. The first signal traces are configured as gate signal traces. Multiple second signal traces extend along the first direction and are spaced apart in the second direction. The through hole divides a portion of the second signal traces into two parts. A winding portion is provided to connect the two parts of the signal traces. The winding portion is distributed around the periphery of the through hole and is spaced apart along the second direction. The first direction intersects the second direction. The angle between the line connecting the center points of the first hole and the second hole and the second direction is greater than 0 degrees. The second hole is surrounded by the display area; the winding portion includes a first sub-winding portion and a second sub-winding portion, the first sub-winding portion is disposed around the first hole, and the second sub-winding portion is disposed around the second hole; the second sub-winding portion is located in the display area.

2. The display panel according to claim 1, characterized in that, The distance between the outer edges of the first hole and the second hole along the first direction or the second direction is greater than the sum of the dimensions of the first hole and the second hole in the corresponding direction.

3. The display panel according to claim 2, characterized in that, The display panel includes a plurality of metal layers arranged sequentially along the thickness direction of the display panel, with adjacent metal layers being insulated from each other. The second signal trace is located in any one of the plurality of metal layers. The second signal trace also includes a straight section, part of which is divided into two parts by the through-hole. The winding section connects the two parts of the straight section, and at least one of the first and second sub-winding sections is arranged in a different layer from the straight section to which it is connected.

4. The display panel according to claim 3, characterized in that, The display panel includes a first metal layer, a second metal layer, and a third metal layer arranged sequentially along the thickness direction of the display panel. Multiple first signal traces are located on the first metal layer, and multiple second signal traces are located on the third metal layer.

5. The display panel according to claim 4, characterized in that, The winding portion is located in the display area, and the display area surrounds the through hole.

6. The display panel according to claim 5, characterized in that, The winding portion includes a first winding and a second winding. The first winding extends along the first direction, and the second winding extends along the second direction. The second winding includes two portions spaced apart along the first direction. The two portions of the second winding are electrically connected by the first winding. The second winding is electrically connected to the straight portion of the second signal trace.

7. The display panel according to claim 6, characterized in that, The display panel further includes a fourth metal layer, which is located on the side of the third metal layer opposite to the second metal layer. A third via is provided between the third metal layer and the fourth metal layer. The first winding is located on the fourth metal layer, and the second winding is located on the third metal layer. The first winding is electrically connected to the second winding through the third via.

8. The display panel according to claim 7, characterized in that, Both the first winding and the second winding are located in the fourth metal layer. A third via is provided between the third metal layer and the fourth metal layer. The second winding is electrically connected to the straight portion of the second signal trace through the third via.

9. The display panel according to claim 3, characterized in that, The first hole is at least partially surrounded by a non-display area, the display area at least partially surrounds the non-display area, the second hole is at least partially surrounded by the display area, the first sub-wound portion is located in the non-display area, and the second sub-wound portion is located in the display area.

10. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 9; The functional module is located within the through hole.

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