Display panel and display device

Abstract

Embodiments of the present application disclose a display panel and a display device. First data lines are provided across the entire display area, a first data line is separately connected to first pixel circuits and second pixel circuits, a second data line is provided in a second display area and located outside a first display area, and the second data line is connected to second pixel circuits. The second data line comprises a first trace, a connection trace, and a second trace which are connected in sequence. The second data line further comprises auxiliary portions, and the auxiliary portions are connected to the connection trace.

Description

Display panels and display devices

[0001] This application claims priority to Chinese patent application No. 202510093840.5, filed on January 21, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0003] The development of under-display facial recognition technology needs to meet two requirements: first, the facial recognition display area must have the same display effect as the regular display area; second, the facial recognition display area must meet the requirements for infrared light transmittance. Typically, high transmittance requires low pixel density, but screen pixel density is closely related to display quality. Some technologies achieve high transmittance by reducing the number of pixels in the facial recognition display area, but this reduces the display quality in that area.

[0004] Other technologies, in order to minimize the display difference between the two zones, employ a design that reduces the driving circuit of the face recognition display area and uses one driving circuit to correspond to multiple light-emitting devices to achieve equal resolution in both zones, thus also meeting the light transmittance requirements.

[0005] However, in order to ensure the continuity of data signals within the surface, the data signals in the conventional display area are all wired to correspond one-to-one with those in the face recognition display area, but these connections will reduce the overall light transmittance of the face recognition display area. Invention Overview

[0006] This application provides a display panel and display device that can improve the light transmittance and display uniformity of the first display area.

[0007] On one hand, embodiments of this application provide a display panel, including a first display area and a second display area located at least one side of the first display area, wherein the first display area is configured to transmit light, and the display panel includes:

[0008] Multiple first pixel circuits are disposed in the first display area, and each first pixel circuit is connected to at least two light-emitting devices.

[0009] Multiple second pixel circuits are disposed in the second display area, and each second pixel circuit is correspondingly connected to one of the light-emitting devices; and

[0010] Multiple first data lines are disposed in the first display area and the second display area, and each first data line is respectively connected to the first pixel circuit and the second pixel circuit; and

[0011] At least one second data line is disposed in the second display area and located outside the first display area, and the second data line is connected to the second pixel circuit.

[0012] The second data line includes a first trace, a connecting trace, and a second trace connected in sequence. The first trace and the second trace are each connected to the second pixel circuit. At least a portion of the connecting trace intersects with the first data line and is disposed on a different layer. The first trace and the second trace are located on opposite sides of the first display area and are both separated from the first data line.

[0013] The second data line is longer than the first data line, and the second data line also includes an auxiliary part connected to the connection trace.

[0014] On the other hand, embodiments of this application also provide a display device, which includes a display panel as described in any one of the embodiments. Attached Figure Description

[0015] Figure 1 is a top view of the display panel structure provided in an embodiment of this application;

[0016] Figure 2 is a structural schematic diagram of the first display area and its surrounding area of ​​the display panel provided in an embodiment of this application;

[0017] Figure 3 is an enlarged schematic diagram of part N1 in Figure 1;

[0018] Figure 4 is an enlarged schematic diagram of part N2 in Figure 3;

[0019] Figure 5 is an enlarged schematic diagram of part N3 in Figure 3;

[0020] Figure 6 is an enlarged schematic diagram of part N4 in Figure 3;

[0021] Figure 7 is an enlarged schematic diagram of part N5 in Figure 3;

[0022] Figure 8 is a schematic diagram of the structure of a display device according to an embodiment of this application. Embodiments of the present invention

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific implementation methods described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, the embodiments can be combined with each other but will not be described in detail one by one. Unless otherwise stated, the directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device; the terms "first," "second," "third," etc. are only used as indications and do not impose numerical requirements or establish a sequence.

[0024] This application provides a display panel and a display device, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0025] This application provides a display panel, including a first display area and a second display area located at least one side of the first display area, wherein the first display area is configured to transmit light, and the display panel includes:

[0026] Multiple first pixel circuits are disposed in the first display area, and each first pixel circuit is connected to at least two light-emitting devices.

[0027] Multiple second pixel circuits are disposed in the second display area, and each second pixel circuit is correspondingly connected to one of the light-emitting devices; and

[0028] Multiple first data lines are disposed in the first display area and the second display area, and each first data line is respectively connected to the first pixel circuit and the second pixel circuit; and

[0029] At least one second data line is disposed in the second display area and located outside the first display area, and the second data line is connected to the second pixel circuit.

[0030] The second data line includes a first trace, a connecting trace, and a second trace connected in sequence. The first trace and the second trace are each connected to the second pixel circuit. At least a portion of the connecting trace intersects with the first data line and is disposed on a different layer. The first trace and the second trace are located on opposite sides of the first display area and are both separated from the first data line.

[0031] The second data line is longer than the first data line, and the second data line also includes an auxiliary part connected to the connection trace.

[0032] Optionally, in some embodiments of this application, the connection trace includes a first sub-line, a second sub-line, and a third sub-line connected in sequence. The first sub-line connects to the first trace, and the third sub-line connects to the second trace. The first sub-line and the third sub-line extend along a first direction, and the second sub-line, the first data line, the first trace, and the second trace extend along a second direction intersecting the first direction. The first sub-line and the third sub-line intersect with the first data line and are arranged on different layers. The second sub-line and the first data line are spaced apart.

[0033] The auxiliary part includes a first auxiliary part, and the first sub-line includes a first end connected to the first trace and a second end connected to the second sub-line, with at least one of the first end and the second end connected to the first auxiliary part.

[0034] Optionally, in some embodiments of this application, the first auxiliary part is connected to the first sub-line on the same layer, and the first auxiliary part extends along the first direction.

[0035] Optionally, in some embodiments of this application, the auxiliary part includes a second auxiliary part, the second sub-line includes a third end connected to the first sub-line and a fourth end connected to the third sub-line, at least one of the third end and the fourth end being connected to the second auxiliary part.

[0036] Optionally, in some embodiments of this application, the second auxiliary part is connected to the second sub-line on the same layer, and the second auxiliary part extends along the second direction.

[0037] Optionally, in some embodiments of this application, the auxiliary part includes a third auxiliary part, and the third sub-line includes a fifth end connected to the second wiring and a sixth end connected to the second sub-line, with at least one of the fifth end and the sixth end connected to the third auxiliary part.

[0038] Optionally, in some embodiments of this application, the third auxiliary part is connected to the third sub-line on the same layer, and the third auxiliary part extends along the first direction.

[0039] Optionally, in some embodiments of this application, in the display panel viewed from above, the first display area has a central axis extending along the second direction, and the connection traces of the second data lines that are farther away from the central axis are closer to the first display area, and two adjacent connection traces are spaced apart.

[0040] Optionally, in some embodiments of this application, in the display panel viewed from above, the length of the connecting trace of the second data line is shorter the farther away from the central axis.

[0041] Optionally, in some embodiments of this application, in the display panel viewed from above, in the first direction, the length of the second sub-line closer to the first display area is shorter; in the second direction, the length of the first sub-line closer to the first display area is shorter, and the length of the third sub-line closer to the first display area is shorter.

[0042] Optionally, in some embodiments of this application, in the display panel viewed from above, in the second direction, the length of the first auxiliary part corresponding to the first sub-line that is closer to the first display area is longer, and the length of the third auxiliary part corresponding to the third sub-line that is closer to the first display area is longer.

[0043] Optionally, in some embodiments of this application, the display panel includes a first cathode connection line extending along the first direction, the first cathode connection line, the first sub-line and the third sub-line are arranged in the same layer and spaced apart, in the second display area, the first sub-lines are spaced apart in the extension direction of a portion of the first cathode connection line, the third sub-lines are spaced apart in the extension direction of a portion of the first cathode connection line, and a portion of the first cathode connection line extends through the entire second display area.

[0044] Optionally, in some embodiments of this application, the display panel includes a second cathode connection line extending along the second direction. The second cathode connection line is disposed on a different layer and electrically connected to the first cathode connection line. The second cathode connection line and the second sub-line are disposed on the same layer and spaced apart. The second sub-lines are spaced apart in the extension direction of a portion of the second cathode connection line, and a portion of the second cathode connection line extends through the entire second display area.

[0045] Optionally, in some embodiments of this application, the distance between two adjacent first cathode connecting lines is equal to the distance between two adjacent first sub-lines and the distance between two adjacent third sub-lines, and the distance between two adjacent second cathode connecting lines is equal to the distance between two adjacent second sub-lines.

[0046] Optionally, in some embodiments of this application, the first sub-line is connected to the first trace via a first clearance line. The first clearance line includes a first connecting end that connects to the first trace. The distance between the first connecting end and its adjacent same-layer trace is greater than the distance between the first sub-line and its adjacent same-layer trace.

[0047] Accordingly, embodiments of this application also provide a display device, which includes a display panel as described in any one of the embodiments.

[0048] The display panel and display device of this application embodiment include a first data line and a second data line. The first data line is disposed in a first display area and a second display area, and is respectively connected to a first pixel circuit and a second pixel circuit. The second data line is disposed in the second display area and located outside the first display area, and is connected to the second pixel circuit. The second data line includes a first trace, a connecting trace, and a second trace connected in sequence. The first trace and the second trace are each respectively connected to the second pixel circuit. At least a portion of the connecting trace intersects with the first data line and is disposed on a different layer. The first trace and the second trace are located on opposite sides of the first display area and are both separated from the first data line.

[0049] The second data line is longer than the first data line, and the second data line also includes an auxiliary part connected to the connection trace.

[0050] Understandably, since the second data line is not connected to the first pixel circuit within the first display area, it is routed around the first display area via connecting traces. This reduces the number of data lines in the first display area, thereby increasing its light transmittance. Furthermore, because the second data line is routed around the first data line, making it longer than the first data line, an auxiliary section is used to connect it, reducing its load and thus minimizing the load difference between the first and second data lines, thereby improving the display uniformity of the first display area.

[0051] Referring to Figures 1 to 3, in Figure 1, the first direction F1 can be a direction parallel to one side of the display panel 100 in a top plan view, and for example, it can be the lateral direction of the display panel 100. The second direction F2 can be a direction parallel to the other side of the display panel 100 in a top plan view, and it can be the longitudinal direction of the display panel 100. Optionally, in some embodiments, the first direction F1 and the second direction F2 may not intersect perpendicularly.

[0052] The display panel 100 may have a rectangular shape in a top plan view, but the implementation is not limited to this. In some embodiments, the display panel 100 may have a rectangular shape with vertical corners or rounded corners in a top plan view. The display panel 100 may include two short sides extending in a first direction F1 and two long sides extending in a second direction F2 in a top plan view.

[0053] This application provides a display panel 100, which includes a first display area AA1 and a second display area AA2 located on at least one side of the first display area AA1, wherein the first display area AA1 is configured to transmit light.

[0054] The display panel 100 includes a plurality of first pixel circuits 11, second pixel circuits 12, first data lines 21, and second data lines 22.

[0055] Multiple first pixel circuits 11 are disposed in the first display area AA1, and each first pixel circuit 11 is connected to at least two light-emitting devices 01. Multiple second pixel circuits 12 are disposed in the second display area AA2, and each second pixel circuit 12 is connected to a light-emitting device 01.

[0056] Multiple first data lines 21 are disposed in the first display area AA1 and the second display area AA2, and one first data line 21 is connected to the first pixel circuit 11 and the second pixel circuit 12 respectively. At least one second data line 22 is disposed in the second display area AA2 and located outside the first display area AA1, and the second data line 22 is connected to the second pixel circuit 12.

[0057] The second data line 22 includes a first trace 221, a connecting trace 223, and a second trace 222 connected in sequence. The first trace 221 and the second trace 222 are each connected to the second pixel circuit 12. At least a portion of the connecting trace 223 intersects with the first data line 21 and is disposed on a different layer. The first trace 221 and the second trace 222 are located on opposite sides of the first display area AA1 and are both separated from the first data line 21. The connecting trace 223 is wound around the outer periphery of the first display area AA1.

[0058] The length of the second data line 22 is greater than the length of the first data line 21. The second data line 22 also includes an auxiliary part 24, which is connected to the connecting trace 223.

[0059] Understandably, since the second data line 22 is not connected to the first pixel circuit 11 within the first display area AA1, it is routed around the first display area AA1 via the connecting trace 223. This reduces the number of data lines in the first display area AA1, thereby increasing its light transmittance. Furthermore, because the second data line 22 is routed around the first data line 21, making it longer, an auxiliary part 24 is used to connect it, reducing its load and thus decreasing the load difference between the first and second data lines 21, thereby improving the display uniformity of the first display area AA1.

[0060] It should be explained that the lengths of the second data line 22 and the first data line 21 are their respective lengths within the total display area. The first display area AA1 and the second display area AA2 are connected to form the total display area. The second display area AA2 is located at least on one side of the first display area AA1. For example, the second display area AA2 may surround the first display area AA1, or the second display area AA2 may partially surround the first display area AA1.

[0061] Optionally, in some embodiments of this application, the display panel 100 further includes a third data line 23 disposed in the second display area AA2. The third data line 23 extends along the second direction F2 and passes through the entire second display area AA2. The third data line 23 and the first data line 21 are disposed on the same layer and spaced apart. In the first direction F1, the third data line 23 is disposed on opposite sides of all the integral first data lines 21. In the first direction F1, a second sub-line 22b is disposed between two adjacent third data lines 23.

[0062] In the second display area AA2, the length of the third data line 23 is less than the length of the second data line 22. By using an auxiliary part 24 to connect the second data line 22 to reduce the load on the second data line 22, the load difference between the third data line 23 and the second data line 22 is reduced, thereby improving the display uniformity of the entire display area.

[0063] Secondly, both the second display area AA2 and the first display area AA1 are regions that include pixels for displaying images. The first display area AA1 is configured to provide a light transmission channel for the camera module.

[0064] Optionally, the camera module can be a camera module for face recognition, which includes a transmitter and a receiver, the transmitter being configured to emit infrared light and the receiver being configured to receive infrared light reflected from a human face.

[0065] In Figure 1, the display panel 100 includes two first display areas AA1. One first display area AA1 is configured to provide a light transmission channel for the transmitter, and the other first display area AA1 is configured to provide a light transmission channel for the receiver. However, it is not limited to this. For example, a single first display area AA1 can be used to provide a light transmission channel for both the transmitter and the receiver; or the display panel 100 may include a first display area AA1 configured to provide a light transmission channel for a conventional camera module, such as a single-camera module, a multi-camera module, or an infrared camera module.

[0066] Optionally, the plurality of light-emitting devices 01 include a red light-emitting device R, a green light-emitting device G, and a blue light-emitting device B. In the first display area AA1, a first pixel circuit 11 is connected to at least two red light-emitting devices R, another first pixel circuit 11 is connected to at least two green light-emitting devices G, and yet another first pixel circuit 11 is connected to at least two blue light-emitting devices B. In the second display area AA2, a second pixel circuit 12 is connected to a red light-emitting device R, another second pixel circuit 12 is connected to a green light-emitting device G, and yet another second pixel circuit 12 is connected to a blue light-emitting device B.

[0067] Optionally, in some embodiments, in the first display area AA1, one first pixel circuit 11 is connected to two red light-emitting devices R, another first pixel circuit 11 is connected to two green light-emitting devices G, and yet another first pixel circuit 11 is connected to four blue light-emitting devices B.

[0068] Optionally, in some embodiments, the multiple second data lines 22 are divided into two groups. One group of second data lines 22 has their connecting traces 223 winding around the left side of the first display area AA1, while the other group has their connecting traces 223 winding around the right side of the first display area AA1. That is, the connecting traces of the two groups of second data lines 22 are positioned opposite each other at intervals from the first display area AA1. Compared to a single-sided winding method, the double-sided winding method used in this embodiment can reduce the load difference between the first data line 21 and the second data line 22, as well as the load difference between the second data lines 22.

[0069] Optionally, in some embodiments of this application, the connecting trace 223 includes a first sub-line 22a, a second sub-line 22b, and a third sub-line 22c connected sequentially. The first sub-line 22a connects to the first trace 221, and the third sub-line 22c connects to the second trace. The first sub-line 22a and the third sub-line 22c extend along a first direction F1. The second sub-line 22b, the first data line 21, the first trace 221, and the second trace 222 extend along a second direction F2 that intersects with the first direction F1. The first sub-line 22a and the third sub-line 22c intersect with the first data line 21 and are arranged on different layers, while the second sub-line 22b is spaced apart from the first data line 21.

[0070] Please refer to Figures 2 to 5. The auxiliary part 24 includes a first auxiliary part 241. The first sub-line 22a includes a first end connected to the first trace 221 and a second end connected to the second sub-line 22b. At least one of the first end and the second end is connected to the first auxiliary part 241.

[0071] Optionally, a first auxiliary part 241 is connected to the first end, and another first auxiliary part 241 is connected to the second end to reduce the impedance of the second data line 22, thereby reducing the load difference between the first data line 21 and the second data line 22 and improving the display uniformity of the first display area AA1.

[0072] Optionally, in some embodiments of this application, the first auxiliary part 241 is connected to the first sub-line 22a on the same layer, and the first auxiliary part 241 extends along the first direction F1.

[0073] Optionally, in some embodiments of this application, the first sub-line 22a is arranged in a straight line in the first direction F1 to reduce the load difference between the first data line 21 and the second data line 22.

[0074] The first sub-line 22a is connected to the second sub-line 22b through via g1.

[0075] Referring to Figures 5 and 6, in some embodiments of this application, the auxiliary part 24 includes a second auxiliary part 242, and the second sub-line 22b includes a third end connected to the first sub-line 22a and a fourth end connected to the third sub-line 22c, at least one of the third end and the fourth end being connected to the second auxiliary part 242.

[0076] Optionally, a second auxiliary part 242 is connected to the third end, and another second auxiliary part 242 is connected to the fourth end to reduce the impedance of the second data line 22, thereby reducing the load difference between the first data line 21 and the second data line 22 and improving the display uniformity of the first display area AA1.

[0077] Optionally, in some embodiments of this application, the second auxiliary part 242 is connected to the second sub-line 22b on the same layer, and the second auxiliary part 242 extends along the second direction F2.

[0078] Optionally, in some embodiments of this application, in the second direction F2, the second sub-line 22b extends in a straight line and the first data line 21 extends in a broken line to reduce the load difference between the first data line 21 and the second data line 22.

[0079] The third sub-line 22c is connected to the second sub-line 22b via via g1.

[0080] Referring to Figures 6 and 7, in some embodiments of this application, the auxiliary part 24 includes a third auxiliary part 243, and the third sub-line 22c includes a fifth end connected to the second line 222 and a sixth end connected to the second sub-line 22b, at least one of the fifth end and the sixth end being connected to the third auxiliary part 243.

[0081] Optionally, a third auxiliary part 243 is connected to the fifth end, and another third auxiliary part 243 is connected to the sixth end to reduce the impedance of the second data line 22, thereby reducing the load difference between the first data line 21 and the second data line 22 and improving the display uniformity of the first display area AA1.

[0082] Optionally, in some embodiments of this application, the third auxiliary part 243 is connected to the third sub-line 22c on the same layer, and the third auxiliary part 243 extends along the first direction F1.

[0083] Optionally, in some embodiments of this application, the third sub-line 22c is arranged in a straight line in the first direction F1 to reduce the load difference between the first data line 21 and the second data line 22.

[0084] Optionally, in some embodiments of this application, a second data line 22 is connected to a column of green light-emitting devices G, wherein a second sub-line 22b is arranged adjacent to a third data line 23 connected to the green light-emitting device G, so as to reduce the interference of the second data line 22 to other light-emitting devices and improve the stability of the display.

[0085] Please refer to Table 1, which is a load comparison table of the first data line 21 and the second data line 22 in this embodiment of the application. The first data line 21 and the second data line 22 are each connected to a corresponding column of green light-emitting devices G, and are arranged adjacent to each other. The two columns of green light-emitting devices G are also arranged adjacent to each other.

[0086]

[0087] It should be noted that the in-plane ratio refers to the proportion of the load of the data lines to the total load of the data lines in the total display area. Based on Figure 3, in the area near the first display area AA1, in the second direction F2 (vertical), the first data line 21 has a concave-convex routing design, and the second sub-line 22b of the second data line 22 has a straight design.

[0088] As shown in Table 1, the second data line 22 does not cause a significant load difference by using the winding method of connecting line 223, and it will not cause a significant display difference problem. At the same time, it can also improve the light transmittance of the first display area AA1.

[0089] Please continue to refer to Figure 3. In some embodiments of this application, in the display panel 100 from a top view, the first display area AA1 has a central axis zz extending along the second direction F2. The connection trace 223 of the second data line 22 that is farther away from the central axis zz is closer to the first display area AA1, and two adjacent connection traces 223 are separated.

[0090] Understandably, the connecting lines 223 are in a semi-circular or semi-circular shape. Multiple connecting lines 223 are arranged in a way that half-loops are wrapped around the other half-loop in a direction away from the first display area AA1, so that any two connecting lines 223 do not intersect or overlap, thus avoiding the risk of mutual interference between data signals and improving the stability of the display in the first display area AA1.

[0091] Optionally, in some embodiments of this application, in the display panel 100 viewed from above, the length of the connecting trace 223 of the second data line 22 that is farther away from the central axis zz is shorter. The total length of the auxiliary part 24 corresponding to the connecting trace 223 of the second data line 22 that is farther away from the central axis zz is longer.

[0092] It is understandable that by making the lengths of the connecting trace 223 and the auxiliary part 24 complementary, the wiring area in the unit area of ​​the second display area AA2 is made uniform, improving the uniformity of light distribution and thus improving the uniformity of display.

[0093] Secondly, in the second direction F2, in the top region a02 of the second display area AA2 adjacent to the first display area AA1 and far from the data signal input terminal, the portion of the second data line 22 closer to the central axis zz is located in the middle of the top region a02, and the portion of the second data line 22 farther from the central axis zz is located on both sides of the top region a02. From the middle of the top region a02 towards both sides, the length of the second data line 22 decreases, while the length of the auxiliary part 24 connected to the second data line 22 increases. This results in a smaller load on the second data line 22 further away from the central axis zz and a closer load on the first data line 21 and the third data line 23. Consequently, in the top region a02, the load on the second data line 22 decreases from the middle towards both sides, thus improving the display transition and enhancing display uniformity.

[0094] Optionally, in some embodiments of this application, in the display panel 100 viewed from above, in the first direction F1, the length of the second sub-line 22b that is closer to the first display area AA1 is shorter. In the second direction F2, the length of the first sub-line 22a that is closer to the first display area AA1 is shorter, and the length of the third sub-line 22c that is closer to the first display area AA1 is shorter.

[0095] In the display panel 100 viewed from above, in the second direction F2, the length of the first auxiliary part 241 corresponding to the first sub-line 22a which is closer to the first display area AA1 is longer, and the length of the third auxiliary part 243 corresponding to the third sub-line 22c which is closer to the first display area AA1 is longer.

[0096] Optionally, in some embodiments of this application, the display panel 100 includes a first cathode connection line 31 extending along a first direction F1. The first cathode connection line 31, the first sub-line 22a, and the third sub-line 22c are arranged in the same layer and spaced apart. In the second display area AA2, the first sub-lines 22a are spaced apart along the extension direction of a portion of the first cathode connection line 31, the third sub-lines 22c are spaced apart along the extension direction of a portion of the first cathode connection line 31, and a portion of the first cathode connection line 31 extends through the entire second display area AA2.

[0097] Understandably, the first cathode connection line 31 extends along the first direction F1. The first cathode connection line 31 is configured to electrically connect to the cathode of the light-emitting device 01. In the second display area AA2, the first cathode connection lines 31 are arranged at intervals along the second direction F2. Specifically, first sub-lines 22a are arranged at intervals along the extension direction of a portion of the first cathode connection lines 31, third sub-lines 22c are arranged at intervals along the extension direction of a portion of the first cathode connection lines 31, and a portion of the first cathode connection lines 31 extend through the entire second display area AA2, making the wiring area in each unit area of ​​the second display area AA2 tend to be the same, thereby improving display uniformity.

[0098] Optionally, in some embodiments of this application, the distance between two adjacent first cathode connection lines 31 is equal to the distance between two adjacent first sub-lines 22a and the distance between two adjacent third sub-lines 22c, so that the wiring formed by the first cathode connection lines 31, the first sub-lines 22a and the third sub-lines 22c is equidistantly arranged, thereby improving the wiring positions in each unit area of ​​the second display area AA2 to be more similar, and further improving display uniformity.

[0099] Optionally, in some embodiments of this application, the display panel 100 includes a second cathode connection line 32 extending along a second direction F2. The second cathode connection line 32 is disposed on a different layer from the first cathode connection line 31 and is electrically connected. The second cathode connection line 32 and the second sub-line 22b are disposed on the same layer and spaced apart. Second sub-lines 22b are arranged at intervals along the extension direction of a portion of the second cathode connection line 32, and a portion of the second cathode connection line 32 extends through the entire second display area AA2.

[0100] Understandably, the second cathode connection line 32 extends along the second direction F2. The second cathode connection line 32 is configured to electrically connect to the cathode of the light-emitting device 01. In the second display area AA2, the second cathode connection lines 32 are arranged at intervals along the first direction F1. Specifically, second sub-lines 22b are arranged at intervals along the extension direction of a portion of the second cathode connection lines 32, and a portion of the second cathode connection lines 32 extends through the entire second display area AA2, making the wiring area in each unit area of ​​the second display area AA2 tend to be the same, thereby improving display uniformity.

[0101] Optionally, the distance between two adjacent second cathode connecting lines 32 is equal to the distance between two adjacent second sub-lines 22b, so that the wiring formed by the second cathode connecting lines 32 and the second sub-lines 22b is equidistant, thereby improving the wiring positions in each unit area of ​​the second display area AA2 to be more similar and further improving display uniformity.

[0102] In addition, it should be noted that in existing panel technology, cathode connection lines are usually designed as a grid and set on the entire surface. However, in the embodiments of this application, some cathode connection lines are disconnected and connected by vias g1 to form connection traces 223, without the need to set up additional connection traces 223, saving wiring space and improving the aperture ratio.

[0103] Optionally, in some embodiments of this application, the second cathode connection line 32 does not extend into the first display area AA1 to improve the light transmittance of the first display area AA1.

[0104] Optionally, in some embodiments of this application, the first sub-line 22a is connected to the first routing line 221 via a first avoidance line 41. The first avoidance line 41 includes a first connecting end 41a that connects to the first routing line 221. The distance between the first connecting end 41a and its adjacent routing line on the same layer is greater than the distance between the first sub-line 22a and its adjacent routing line on the same layer.

[0105] It is understandable that the first clearance line 41 is set on the same layer as the first sub-line 22a. The first sub-line 22a and the first trace 221 are moved to a larger space through the first clearance line 41 to meet the setting requirements of via g1, thereby reducing the risk of short circuit between the first sub-line 22a and other traces on the same layer.

[0106] Additionally, the first clearance line 41 includes a second connection end 41b that connects to the first sub-line 22a. The second connection end 41b is located on the side away from the central axis zz at the intersection of the first trace 221 and the first sub-line 22a. This arrangement allows for the placement of the first auxiliary part 241 within a limited space and shortens the length of the connecting trace 223, thereby reducing impedance.

[0107] Optionally, in some embodiments of this application, the third sub-line 22c is connected to the second routing line 222 via a second clearance line 42. The second clearance line 42 includes a third connecting end 42a that connects to the second routing line 222. The distance between the third connecting end 42a and its adjacent routing line on the same layer is greater than the distance between the third sub-line 22c and its adjacent routing line on the same layer.

[0108] It is understandable that the second clearance line 42 is set on the same layer as the third sub-line 22c. The connection between the third sub-line 22c and the second routing line 222 is moved to a larger space through the second clearance line 42 to meet the setting requirements of via g1, thereby reducing the risk of short circuit between the third sub-line 22c and other routing lines on the same layer.

[0109] Additionally, the second clearance line 42 includes a fourth connection end 42b that connects to the third sub-line 22c. This fourth connection end 42b is located on the side away from the central axis zz at the intersection of the second trace 222 and the third sub-line 22c. This arrangement allows for the placement of the third auxiliary section 243 within a limited space and shortens the length of the connecting trace 223, thereby reducing impedance.

[0110] Referring to Figure 8, correspondingly, this application embodiment also provides a display device 1000, including the display panel 100 as described in any of the above embodiments.

[0111] It is understood that the structure of the display panel 100 of the display device 1000 in this application embodiment is similar to or the same as the structure of the display panel 100 of any of the above embodiments. For details, please refer to the descriptions in Figures 1 to 7, which will not be repeated here.

[0112] Optionally, the display device 1000 may also include a camera module, which is disposed on the backlight side of the display panel 100 and corresponds to the first display area AA1.

[0113] The camera module includes a transmitter and a receiver. The transmitter is configured to emit infrared light, and the receiver is configured to receive infrared light reflected from a face. The transmitter corresponds to a first display area AA1, and the receiver corresponds to another first display area AA1. However, this is not a limitation. For example, a single first display area AA1 can be used to provide a light transmission channel for both the transmitter and the receiver; or the display panel 100 can include a first display area AA1, and the camera module can be a conventional camera module, such as a single-camera module, a multi-camera module, or an infrared camera module.

[0114] The display panel 100 of the display device 1000 in this embodiment includes a first data line 21 and a second data line 22. The first data line 21 is disposed in a first display area AA1 and a second display area AA2. The first data line 21 is connected to a first pixel circuit 11 and a second pixel circuit 12, respectively. The second data line 22 is disposed in the second display area AA2 and located outside the first display area AA1. The second data line 22 is connected to the second pixel circuit. The second data line 22 includes a first trace 221, a connecting trace 223, and a second trace 222 connected in sequence. The first trace 221 and the second trace 222 are each connected to the second pixel circuit 12. At least a portion of the connecting trace 223 intersects with the first data line 21 and is disposed on a different layer. The first trace 221 and the second trace 222 are located on opposite sides of the first display area AA1 and are both spaced apart from the first data line 21.

[0115] The length of the second data line 22 is greater than the length of the first data line 21. The second data line 22 also includes an auxiliary part 24, which is connected to the connecting trace 223.

[0116] Understandably, since the second data line 22 is not connected to the first pixel circuit 11 within the first display area AA1, it is routed around the first display area AA1 via the connecting trace 223. This reduces the number of data lines in the first display area AA1, thereby increasing its light transmittance. Furthermore, because the second data line 22 is routed around the first data line 21, making it longer, an auxiliary part 24 is used to connect it, reducing its load and thus decreasing the load difference between the first and second data lines 21, thereby improving the display uniformity of the first display area AA1.

[0117] The above provides a detailed description of a display panel and display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel comprising a first display area and a second display area located at least one side of the first display area, the first display area being configured to transmit light, the display panel comprising: Multiple first pixel circuits are disposed in the first display area, and each first pixel circuit is connected to at least two light-emitting devices. Multiple second pixel circuits are disposed in the second display area, and each second pixel circuit is correspondingly connected to one of the light-emitting devices; as well as Multiple first data lines are provided in the first display area and the second display area, and each first data line is connected to the first pixel circuit and the second pixel circuit respectively. as well as At least one second data line is disposed in the second display area and located outside the first display area, and the second data line is connected to the second pixel circuit. The second data line includes a first trace, a connecting trace, and a second trace connected in sequence. The first trace and the second trace are each connected to the second pixel circuit. The connecting trace is wrapped around the outer periphery of the first display area. At least a portion of the connecting trace intersects with the first data line and is disposed on a different layer. The first trace and the second trace are located on opposite sides of the first display area and are both separated from the first data line. The second data line also includes an auxiliary part, which is connected to the connection trace.

2. The display panel according to claim 1, wherein, The connection trace includes a first sub-line, a second sub-line, and a third sub-line connected in sequence. The first sub-line connects to the first trace, and the third sub-line connects to the second trace. The first sub-line and the third sub-line extend along a first direction. The second sub-line, the first data line, the first trace, and the second trace extend along a second direction that intersects with the first direction. The first sub-line and the third sub-line intersect with the first data line and are arranged on different layers. The second sub-line and the first data line are spaced apart. The auxiliary part includes a first auxiliary part, and the first sub-line includes a first end connected to the first trace and a second end connected to the second sub-line, with at least one of the first end and the second end connected to the first auxiliary part.

3. The display panel according to claim 2, wherein, The first auxiliary part is connected to the first sub-line at the same layer, and the first auxiliary part extends along the first direction.

4. The display panel according to claim 3, wherein, The auxiliary part includes a second auxiliary part, and the second sub-line includes a third end connected to the first sub-line and a fourth end connected to the third sub-line, at least one of the third end and the fourth end being connected to the second auxiliary part.

5. The display panel according to claim 4, wherein, The second auxiliary part is connected to the second sub-line on the same layer, and the second auxiliary part extends along the second direction.

6. The display panel according to claim 5, wherein, The auxiliary part includes a third auxiliary part, and the third sub-line includes a fifth end connected to the second sub-line and a sixth end connected to the second sub-line, with at least one of the fifth end and the sixth end connected to the third auxiliary part.

7. The display panel according to claim 6, wherein, The third auxiliary part is connected to the third sub-line on the same layer, and the third auxiliary part extends along the first direction.

8. The display panel according to claim 7, wherein, In the display panel viewed from above, the first display area has a central axis extending along the second direction, and the connection traces of the second data line that are farther away from the central axis are closer to the first display area, with adjacent connection traces being spaced apart.

9. The display panel according to claim 8, wherein, In the display panel viewed from above, the length of the connecting trace of the second data line is shorter the farther it is from the central axis.

10. The display panel according to claim 9, wherein, In the display panel viewed from above, in the first direction, the second sub-line closer to the first display area is shorter; in the second direction, the first sub-line closer to the first display area is shorter, and the third sub-line closer to the first display area is shorter.

11. The display panel according to claim 10, wherein, In the display panel viewed from above, in the second direction, the length of the first auxiliary part corresponding to the first sub-line that is closer to the first display area is longer, and the length of the third auxiliary part corresponding to the third sub-line that is closer to the first display area is longer.

12. The display panel according to claim 8, wherein, In the second direction, in the top region of the second display area adjacent to the first display area and far from the data signal input terminal, the portion of the second data line closer to the central axis is located in the middle of the top region, and the portion of the second data line farther from the central axis is located on both sides of the top region; from the middle of the top region to both sides, the length of the second data line decreases, and the length of the auxiliary part connected to the second data line increases.

13. The display panel according to any one of claims 2-12, wherein, The display panel includes a first cathode connection line extending along the first direction. The first cathode connection line, the first sub-line, and the third sub-line are arranged on the same layer and spaced apart. In the second display area, the first sub-lines are arranged at intervals along the extension direction of a portion of the first cathode connection line, and the third sub-lines are arranged at intervals along the extension direction of a portion of the first cathode connection line. A portion of the first cathode connection line extends through the entire second display area.

14. The display panel according to claim 13, wherein, The display panel includes a second cathode connection line extending along the second direction. The second cathode connection line is disposed on a different layer from the first cathode connection line and is electrically connected. The second cathode connection line and the second sub-line are disposed on the same layer and spaced apart. The second sub-lines are arranged at intervals along the extension direction of a portion of the second cathode connection line, and a portion of the second cathode connection line extends through the entire second display area.

15. The display panel according to claim 14, wherein, The distance between two adjacent first cathode connection lines is equal to the distance between two adjacent first sub-lines and the distance between two adjacent third sub-lines.

16. The display panel according to claim 15, wherein, The distance between two adjacent second cathode connecting lines is equal to the distance between two adjacent second sub-lines.

17. The display panel according to claim 14, wherein, The second cathode connection line does not extend into the first display area.

18. The display panel according to any one of claims 2-12, wherein, The first sub-line is connected to the first routing line via a first clearance line. The first clearance line includes a first connecting end that connects to the first routing line. The distance between the first connecting end and its adjacent routing line on the same layer is greater than the distance between the first sub-line and its adjacent routing line on the same layer.

19. The display panel according to claim 18, wherein, The first avoidance line includes a second connecting end that connects to the first sub-line. The second connecting end is located on the side away from the central axis of the first display area at the intersection of the first trace and the first sub-line.

20. A display device comprising a display panel as described in any one of claims 1-19.

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