Display panel and display device

Abstract

Embodiments of the present application disclose a display panel and a display device. The display panel comprises a substrate, an anode layer, a pixel definition layer, a light-emitting layer and a cathode layer arranged in sequence. The anode layer comprises a plurality of anodes arranged at intervals in a display area. The pixel definition layer is provided with a plurality of pixel openings exposing the anodes. The light-emitting layer comprises a plurality of light-emitting pixels located in the pixel openings. The light-emitting pixels comprise first sub-pixels and second sub-pixels arranged at intervals. The cathode layer comprises a plurality of cathodes. Each cathode comprises a first electrode and a second electrode, and corresponds to the first sub-pixel and the second sub-pixel respectively. The first electrode and the second electrode of each cathode are insulated. In the present application, when one of the first sub-pixel and the second sub-pixel causes a short circuit of the corresponding anode and cathode due to the attachment of foreign matter, the other can emit light normally, so that the light-emitting pixel can still emit light, thereby reducing unnecessary repair and reducing production cost.

Description

Technical Field

[0001] This application relates to the field of displays, specifically to a display panel and a display device. Background Technology

[0002] With the rapid development of display technology, people have increasingly higher requirements for the quality of display panels. Organic Light-Emitting Diode (OLED) display panels, with their advantages of thinness, self-illumination, and low power consumption, have become the most promising flat panel display device after thin-film transistor liquid crystal displays. However, during the OLED production process, dust and other foreign matter inevitably contaminate the surface or interior of the display panel, easily causing short circuits between the cathode and anode, resulting in pixels not lighting up, forming dark spots, and affecting the display effect of the panel. Summary of the Invention

[0003] This application provides a display panel and display device that can solve the problem that existing display panels are prone to dark spots caused by foreign object contamination, which affects the display effect of the display panel.

[0004] This application provides a display panel, including:

[0005] The substrate includes a display area and a non-display area;

[0006] An anode layer is disposed on the substrate, the anode layer comprising a plurality of anodes spaced apart in the display area;

[0007] A pixel definition layer is disposed on the anode layer, and the pixel definition layer has multiple pixel openings that expose the anode.

[0008] A light-emitting layer includes a plurality of light-emitting pixels, wherein the light-emitting pixels are located within the pixel openings; each light-emitting pixel includes a first sub-pixel and a second sub-pixel that are spaced apart.

[0009] The cathode layer includes a plurality of cathodes corresponding to the light-emitting pixels. Each cathode includes a first electrode and a second electrode. The first electrode is located on the side of the first sub-pixel away from the anode, and the second electrode is located on the side of the second sub-pixel away from the anode. The first electrode and the second electrode of each cathode are insulated from each other.

[0010] Optionally, in some embodiments of this application, the display panel includes an overlap layer located in the non-display area of ​​the substrate; the overlap layer includes a first overlap wire and a second overlap wire that are insulated from each other; at least a portion of the first electrode of the cathode is electrically connected to the first overlap wire, and at least a portion of the second electrode of the cathode is electrically connected to the second overlap wire.

[0011] Optionally, in some embodiments of this application, the plurality of light-emitting pixels are distributed in multiple rows along a first direction, and the first sub-pixel and the second sub-pixel of each row of light-emitting pixels are disposed along the first direction; in the first direction, the first electrode corresponding to the light-emitting pixel in the next row is electrically connected to the second electrode corresponding to the light-emitting pixel in the previous row.

[0012] Optionally, in some embodiments of this application, the first lap joint and the second lap joint extend along the first direction;

[0013] The first and second bonding wires are distributed along a second direction on opposite sides of the display area; or

[0014] The first and second connecting wires are distributed on the same side of the display area along the second direction.

[0015] Optionally, in some embodiments of this application, the display panel includes two first bonding wires and two second bonding wires, the two first bonding wires being distributed along the second direction on opposite sides of the display area, and the two second bonding wires being distributed along the second direction on opposite sides of the display area.

[0016] Optionally, in some embodiments of this application, the display panel includes a first isolation layer, the first isolation layer including a plurality of first isolation portions and a plurality of second isolation portions; the plurality of first isolation portions are spaced apart along the first direction on the side of the first overlap line facing away from the substrate, and the exposed first overlap line between two adjacent first isolation portions forms a first overlap portion; the plurality of second isolation portions are spaced apart along the first direction on the side of the second overlap line facing away from the substrate, and the exposed second overlap line between two adjacent second isolation portions forms a second overlap portion; the first electrode and the second electrode of each cathode are electrically connected to one of the first overlap portion and the second overlap portion, respectively.

[0017] Optionally, in some embodiments of this application, the first isolation portion and the second isolation portion are alternately arranged in the first direction.

[0018] Optionally, in some embodiments of this application, the display panel further includes a second isolation layer, the second isolation layer including a plurality of third isolation portions located in the display area, the third isolation portions being disposed corresponding to the light-emitting pixels, and the third isolation portions being located between the first sub-pixel and the second sub-pixel corresponding to the light-emitting pixels, the third isolation portions being used to disconnect the first electrode and the second electrode of each cathode.

[0019] Optionally, in some embodiments of this application, the second isolation layer further includes a plurality of fourth isolation portions located in the non-display area, the fourth isolation portions being located on the side of the first isolation layer away from the substrate, so that the cathode layer is disconnected on opposite sides of the fourth isolation portions along the first direction.

[0020] Accordingly, this application also provides a display device, which includes the display panel described in any of the above claims.

[0021] In this embodiment, the display panel includes a substrate, an anode layer, a pixel definition layer, a light-emitting layer, and a cathode layer. The substrate includes a display area and a non-display area. The anode layer is disposed on the substrate and includes multiple anodes spaced apart in the display area. The pixel definition layer is disposed on the anode layer and has multiple pixel openings that expose the anodes. The light-emitting layer includes multiple light-emitting pixels located within the pixel openings. Each light-emitting pixel includes a first sub-pixel and a second sub-pixel spaced apart. The cathode layer includes multiple cathodes corresponding to the light-emitting pixels. Each cathode includes a first electrode and a second electrode. The first electrode is located on the side of the first sub-pixel facing away from the anode, and the second electrode is located on the side of the second sub-pixel facing away from the anode. The first electrode and the second electrode of each cathode are insulated from each other. By dividing each light-emitting pixel into a first sub-pixel and a second sub-pixel, and corresponding to the first electrode and the second electrode respectively, and ensuring that the first electrode and the second electrode are insulated from each other, this application ensures that when one of the first sub-pixels and the second sub-pixel is short-circuited due to foreign matter, the other can still emit light normally. This allows the light-emitting pixel to continue emitting light, thereby reducing unnecessary repairs and lowering production costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a display panel before the formation of the cathode layer, provided in an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of another display panel provided in this application before the formation of the cathode layer;

[0025] Figure 3 This is a schematic diagram of the structure of a display panel after the cathode layer has been formed, according to an embodiment of this application.

[0026] Figure 4This is one of the embodiments provided in this application. Figure 3 A cross-sectional view from the perspective of the AA (American Academy of Sciences).

[0027] Figure 5 This is one of the embodiments provided in this application. Figure 3 A cross-sectional view from the perspective of the middle BB (Black-White) section;

[0028] Figure 6 This is a schematic diagram of a structure provided in an embodiment of this application when a foreign object is attached to a light-emitting pixel;

[0029] Figure 7 This is an equivalent circuit diagram provided in an embodiment of the present application when a foreign object is attached to a light-emitting pixel;

[0030] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of 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 embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, 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.

[0034] 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.

[0035] First, this application provides a display panel, such as... Figure 1 , Figure 3 and Figure 5As shown, the display panel 100 includes a substrate 110, which includes a display area S1 and a non-display area S2. The display area S1 is the main light-emitting area of ​​the display panel 100, while the non-display area S2 is mainly used for the setting of control circuits such as driving lines. The substrate 110 serves as a support structure for the display panel 100, supporting the fabrication of other functional structures within the display panel 100 to ensure the overall stability of the display panel 100.

[0036] The display panel 100 includes an anode layer 120 disposed on a substrate 110, and the anode layer 120 includes a plurality of anodes 121 spaced apart in the display area S1. The substrate 110 includes a substrate layer and a thin-film transistor layer, the thin-film transistor layer including a plurality of thin-film transistors, and the anodes 121 are electrically connected to the corresponding thin-film transistors. The signal on the anodes 121 can be regulated by controlling the conduction of the thin-film transistors.

[0037] The display panel 100 includes a pixel definition layer 130 disposed on the anode layer 120. The pixel definition layer 130 has multiple pixel openings 131, each exposing an anode 121; that is, each pixel opening 131 corresponds to an anode 121. The pixel openings 131 on the pixel definition layer 130 are used to define the position of a pixel, and the corresponding anode 121 serves as an electrode for controlling the pixel's display.

[0038] The display panel 100 includes a light-emitting layer 140, which includes a plurality of light-emitting pixels 141. The light-emitting pixels 141 are located within pixel openings 131, meaning that one light-emitting pixel 141 is correspondingly disposed within each pixel opening 131. Each light-emitting pixel 141 includes a first sub-pixel 1411 and a second sub-pixel 1412 that are spaced apart. That is, a light-emitting pixel 141 can be composed of two sub-pixels, so that when either the first sub-pixel 1411 or the second sub-pixel 1412 can emit light normally, the normal emission of the light-emitting pixel 141 can be guaranteed, thereby reducing the risk of display abnormalities in the display panel 100.

[0039] The display panel 100 includes a cathode layer 150, which includes a plurality of cathodes 151 corresponding to the light-emitting pixels 141. Each cathode 151 includes a first electrode 1511 and a second electrode 1512. The first electrode 1511 is located on the side of the first sub-pixel 1411 away from the anode 121, and the second electrode 1512 is located on the side of the second sub-pixel 1412 away from the anode 121. The first electrode 1511 and the second electrode 1512 of each cathode 151 are insulated from each other. That is, the first sub-pixel 1411 of each light-emitting pixel 141 is controlled by the corresponding anode 121 and the first electrode 1511, and the second sub-pixel 1412 of each light-emitting pixel 141 is controlled by the corresponding anode 121 and the second electrode 1512. In other words, the first sub-pixel 1411 and the second sub-pixel 1412 of each light-emitting pixel 141 share the same anode 121, but the cathodes 151 are mutually insulated. This allows the other sub-pixel to emit light normally even when one of the first sub-pixel 1411 and the second sub-pixel 1412 is short-circuited due to foreign matter attached to it. This ensures that the light-emitting pixel 141 can still emit light, thereby reducing unnecessary repairs and lowering production costs.

[0040] In this embodiment, the display panel 100 includes a substrate 110, an anode layer 120, a pixel definition layer 130, a light-emitting layer 140, and a cathode layer 150 arranged sequentially. The substrate 110 includes a display area S1 and a non-display area S2. The anode layer 120 includes a plurality of anodes 121 spaced apart in the display area S1. The pixel definition layer 130 has a plurality of pixel openings 131, which expose the anodes 121. The light-emitting layer 140 includes a plurality of light-emitting pixels 141, which are located within the pixel openings 131. The light-emitting pixel 141 includes a first sub-pixel 1411 and a second sub-pixel 1412 spaced apart. The cathode layer 150 includes a plurality of cathodes 151 corresponding to the light-emitting pixel 141. Each cathode 151 includes a first electrode 1511 and a second electrode 1512. The first electrode 1511 is located on the side of the first sub-pixel 1411 facing away from the anode 121, and the second electrode 1512 is located on the side of the second sub-pixel 1412 facing away from the anode 121. The first electrode 1511 and the second electrode 1512 of each cathode 151 are insulated from each other. By dividing each light-emitting pixel 141 into a first sub-pixel 1411 and a second sub-pixel 1412, which correspond to the first electrode 1511 and the second electrode 1512 respectively, and with the first electrode 1511 and the second electrode 1512 insulated from each other, this application ensures that when one of the first sub-pixel 1411 and the second sub-pixel 1412 is short-circuited due to foreign matter, the other can still emit light normally. This allows the light-emitting pixel 141 to still emit light, thereby reducing unnecessary repairs and lowering production costs.

[0041] Optional, such as Figure 1 and Figure 4 As shown, the display panel 100 includes an overlap layer 160 located in the non-display area S2 of the substrate 110. The overlap layer 160 includes a first overlap wire 161 and a second overlap wire 162 that are insulated from each other. At least a portion of the first electrode 1511 of the cathode 151 is electrically connected to the first overlap wire 161, and at least a portion of the second electrode 1512 of the cathode 151 is electrically connected to the second overlap wire 162. That is, according to the overall structural design of the display panel 100, the first electrode 1511 and the second electrode 1512 of each cathode 151 can be electrically connected to the first overlap wire 161 or the second overlap wire 162 according to design requirements, and the first electrode 1511 and the second electrode 1512 of one cathode 151 are connected to different overlap wires to ensure insulation between the corresponding first electrode 1511 and the second electrode 1512.

[0042] In some embodiments, the first electrode 1511 of all cathodes 151 is electrically connected to the first bonding wire 161, and the second electrode 1512 of all cathodes 151 is electrically connected to the second bonding wire 162. That is, the connection method of the first electrode 1511 and the second electrode 1512 of each cathode 151 is the same as that of the first bonding wire 161 and the second bonding wire 162. The first bonding wire 161 and the second bonding wire 162 are insulated, thereby ensuring the insulation between the first electrode 1511 and the second electrode 1512 of each cathode 151, avoiding mutual interference between the first sub-pixel 1411 and the second sub-pixel 1412 of a light-emitting pixel 141, and reducing the risk of display abnormalities in the display panel 100 as a whole.

[0043] Optional, such as Figure 1 and Figure 5 As shown, multiple light-emitting pixels 141 are distributed in multiple rows along the first direction X. The first sub-pixel 1411 and the second sub-pixel 1412 of each row of light-emitting pixels 141 are arranged along the first direction X. In the first direction X, the first electrode 1511 corresponding to the next row of light-emitting pixels 141 is electrically connected to the second electrode 1512 corresponding to the previous row of light-emitting pixels 141. That is, when fabricating the cathode layer 150 and performing patterning on it, there is no need for insulation between the first electrode 1511 corresponding to the next row of light-emitting pixels 141 and the second electrode 1512 corresponding to the previous row of light-emitting pixels 141; they can form a single unit, thereby simplifying the formation of the cathode layer 150.

[0044] In some embodiments, a plurality of light-emitting pixels 141 are distributed in multiple rows along the first direction X. The first sub-pixel 1411 and the second sub-pixel 1412 of each row of light-emitting pixels 141 are arranged along the first direction X, and the electrodes corresponding to any two adjacent rows of sub-pixels are mutually insulated, so that the electrodes corresponding to each row of sub-pixels are mutually independent, thereby further reducing mutual interference between sub-pixels and reducing the risk of display abnormalities in the display panel 100 as a whole.

[0045] Optionally, the first bonding wire 161 and the second bonding wire 162 extend along the first direction X, and the first bonding wire 161 and the second bonding wire 162 are distributed along the second direction Y on opposite sides of the display area S1. That is, the extension direction of the first bonding wire 161 and the second bonding wire 162 is consistent with the distribution direction of the multiple rows of light-emitting pixels 141. For each row of light-emitting pixels 141, the first bonding wire 161 and the second bonding wire 162 are distributed at opposite ends of the row of light-emitting pixels 141, so that the cathode 151 corresponding to each row of light-emitting pixels 141 can extend directly to the first bonding wire 161 or the second bonding wire 162 according to the design requirements, so as to realize the electrical connection with the first bonding wire 161 or the second bonding wire 162, thereby helping to improve the flexibility of the cathode 151 bonding design.

[0046] In some embodiments, the first connecting wire 161 and the second connecting wire 162 extend along the first direction X, and the first connecting wire 161 and the second connecting wire 162 are distributed along the second direction Y on the same side of the display area S1. That is, the extension direction of the first connecting wire 161 and the second connecting wire 162 is consistent with the distribution direction of the multiple rows of light-emitting pixels 141. For each row of light-emitting pixels 141, the first connecting wire 161 and the second connecting wire 162 are distributed at the same end of the row of light-emitting pixels 141. When designing the connection method of the cathode 151 corresponding to each row of light-emitting pixels 141, only one end needs to be processed and electrically connected to the first connecting wire 161 or the second connecting wire 162, which helps to simplify the structural design of the cathode 151.

[0047] In other embodiments, such as Figure 2 As shown, the display panel 100 includes two first bonding wires 161 and two second bonding wires 162. The two first bonding wires 161 are distributed along the second direction Y on opposite sides of the display area S1, and the two second bonding wires 162 are also distributed along the second direction Y on opposite sides of the display area S1. That is, for each row of light-emitting pixels 141, both ends are provided with first bonding wires 161 and second bonding wires 162. When designing the connection method of the cathode 151 corresponding to each row of light-emitting pixels 141, both ends can be electrically connected to either the first bonding wire 161 or the second bonding wire 162 simultaneously. This arrangement can increase the effective bonding area of ​​the cathode 151, thereby improving the display effect of the display panel 100.

[0048] Optionally, the display panel 100 includes a first isolation layer 170, which includes a plurality of first isolation portions 171 and a plurality of second isolation portions 172. The plurality of first isolation portions 171 are spaced apart along a first direction X on the side of the first bonding line 161 facing away from the substrate 110, and the exposed first bonding line 161 between two adjacent first isolation portions 171 forms a first bonding portion 1611. The plurality of second isolation portions 172 are spaced apart along a first direction X on the side of the second bonding line 162 facing away from the substrate 110, and the exposed second bonding line 162 between two adjacent second isolation portions 172 forms a second bonding portion 1621. The first electrode 1511 and the second electrode 1512 of each cathode 151 are electrically connected to one of the first bonding portion 1611 and the second bonding portion 1621, respectively.

[0049] In this embodiment of the application, a first isolation layer 170 is provided on the overlapping layer 160, and the first isolation layer 170 is patterned so that the first isolation part 171 and the second isolation part 172 are respectively located on the first overlapping line 161 and the second overlapping line 162. A first overlapping part 1611 and a second overlapping part 1621 are formed on the first overlapping line 161 and the second overlapping line 162, respectively. The first overlapping part 1611 and the second overlapping part 1621 can limit the overlapping position of the cathode 151 and the corresponding overlapping line, so as to facilitate the connection design of the first electrode 1511 and the second electrode 1512 of the cathode 151 with the first overlapping line 161 and the second overlapping line 162.

[0050] In the first direction X, the first isolation section 171 and the second isolation section 172 are alternately arranged. For example... Figure 1 As shown, multiple light-emitting pixels 141 are distributed in multiple rows along the first direction X. The first sub-pixel 1411 and the second sub-pixel 1412 of each row of light-emitting pixels 141 are arranged along the first direction X. That is, the multiple light-emitting pixels 141 as a whole can be regarded as an alternating arrangement of a row of first sub-pixels 1411 and a row of second sub-pixels 1412 in the first direction X. Correspondingly, the first isolation part 171 and the second isolation part 172 are arranged alternately in the first direction X. This arrangement helps to electrically connect the first electrode 1511 or the second electrode 1512 corresponding to each row of first sub-pixels 1411 and each row of second sub-pixels 1412 with the corresponding first overlapping part 1611 and the second overlapping part 1621.

[0051] Optionally, the display panel 100 further includes a second isolation layer 180, which includes a plurality of third isolation portions 181 located in the display area S1. The third isolation portions 181 are correspondingly disposed with the light-emitting pixels 141, and the third isolation portions 181 are located between the first sub-pixel 1411 and the second sub-pixel 1412 of the corresponding light-emitting pixel 141. The third isolation portions 181 are used to disconnect the first electrode 1511 and the second electrode 1512 of each cathode 151.

[0052] In other words, before fabricating the light-emitting layer 140, a second isolation layer 180 is first formed, and a pattern is drawn on the second isolation layer 180 so that the third isolation portion 181 formed after the pattern is drawn is located within the pixel opening 131, dividing the pixel opening 131 into two regions. Then, a light-emitting pixel 141 is formed within the pixel opening 131, and the light-emitting pixel 141 is divided into a first sub-pixel 1411 and a second sub-pixel 1412 by the corresponding third isolation portion 181. Figure 5 As shown, when a cathode 151 is formed on the light-emitting pixel 141, the cathode 151 is also divided into a first electrode 1511 and a second electrode 1512 by the corresponding third isolation part 181, thereby achieving insulation between the first electrode 1511 and the second electrode 1512, so that the light emission of the first sub-pixel 1411 and the second sub-pixel 1412 of the light-emitting pixel 141 can be controlled independently, so that when one of the first sub-pixel 1411 and the second sub-pixel 1412 is short-circuited due to foreign matter attached (e.g. Figure 6 and Figure 7 As shown), another pixel can emit light normally, thus allowing the emitting pixel 141 to continue to emit light, thereby reducing unnecessary repairs and lowering production costs.

[0053] The cross-section of the third isolation portion 181 is an inverted trapezoidal structure. That is, the orthogonal projection of the side of the third isolation portion 181 facing away from the substrate 110 on the substrate 110 covers the orthogonal projection of the side of the third isolation portion 181 facing the substrate 110 on the substrate 110. This forms a partition area between the side surface of the third isolation portion 181 and the surfaces of the corresponding first sub-pixel 1411 and second sub-pixel 1412. This allows the cathode layer 150 to be directly disconnected at the corresponding partition area when the cathode layer 150 is formed on the light-emitting layer 140 by adjusting the evaporation angle of the cathode layer 150 to be greater than the tilt angle of the side surface of the third isolation portion 181. This achieves insulation between the first electrode 1511 and the second electrode 1512 of the cathode 151.

[0054] Optionally, the second isolation layer 180 further includes a plurality of fourth isolation portions 182 located in the non-display area S2. The fourth isolation portions 182 are located on the side of the first isolation layer 170 facing away from the substrate 110, so that the cathode layer 150 is disconnected on opposite sides of the fourth isolation portions 182 along the first direction X. Figure 4 As shown, taking each row of light-emitting pixels 141 as a whole, when one end of the corresponding cathode 151 is electrically connected to one of the bonding wires, the other end of the cathode 151 is located on the surface of the first isolation layer 170 on another bonding wire. By forming a fourth isolation portion 182 on the side of the first isolation layer 170 away from the substrate 110, the cathode layer 150 is disconnected on both sides of the fourth isolation portion 182 along the first direction X. This can prevent mutual interference after the first electrode 1511 and the second electrode 1512 of the cathode 151 are electrically connected to the corresponding bonding wires, thereby reducing the risk of display abnormalities in the display panel 100 as a whole.

[0055] The fourth isolation portion 182 has an inverted trapezoidal cross-section. That is, the orthographic projection of the side of the fourth isolation portion 182 facing away from the substrate 110 on the substrate 110 covers the orthographic projection of the side of the fourth isolation portion 182 facing the substrate 110 on the substrate 110. This forms a partition area between the side surface of the fourth isolation portion 182 and the surface of the first isolation layer 170. As a result, when the cathode layer 150 is formed on the light-emitting layer 140, by adjusting the evaporation angle of the cathode layer 150 to be greater than the tilt angle of the side surface of the fourth isolation portion 182, the cathode 151 can be directly disconnected at the position of the corresponding partition area, thereby achieving insulation between the first electrode 1511 and the second electrode 1512 of the cathode 151.

[0056] It should be noted that the third isolation section 181 and the fourth isolation section 182 can be arranged in multiple strip-shaped structures. That is, each row of light-emitting pixels 141 has one such strip-shaped structure between the first sub-pixel 1411 and the second sub-pixel 1412. This achieves insulation between the first electrode 1511 and the second electrode 1512 corresponding to the first sub-pixel 1411 and the second sub-pixel 1412 in each row of light-emitting pixels 141. This ensures that when one of the first sub-pixel 1411 and the second sub-pixel 1412 is short-circuited due to foreign matter, the other can still emit light normally. This allows the light-emitting pixel 141 to still emit light, thereby reducing unnecessary repairs and lowering production costs.

[0057] Secondly, this application embodiment also provides a display device, which includes a display panel. The specific structure of the display panel is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0058] like Figure 8 As shown, the display device 10 includes a display panel 100, a control circuit 200, and a housing 300. The housing 300 is connected to the display panel 100 to support and fix the display panel 100. The control circuit 200 is disposed inside the housing 300 and is electrically connected to the display panel 100 to control the display panel 100 to display images.

[0059] The display panel 100 can be fixed to the housing 300, forming an integral whole. The display panel 100 and the housing 300 form a sealed space to house the control circuit 200. The control circuit 200 can be the mainboard of the display device 10. Furthermore, the control circuit 200 can integrate one or more functional components such as a battery, antenna structure, microphone, speaker, headphone jack, universal serial bus interface, camera, proximity sensor, ambient light sensor, and processor, enabling the display device 10 to adapt to various application fields.

[0060] It should be noted that the display device 10 is not limited to the above-mentioned components. It may also include other components, such as a camera, an antenna structure, a fingerprint unlocking module, etc., to expand its application scope. No restrictions are imposed here.

[0061] The display device 10 in this application embodiment has a wide range of applications, including flexible displays such as televisions, computers, mobile phones, foldable and rollable displays, and lighting, as well as wearable devices such as smart bracelets and smartwatches, all of which fall within the application field of the display device 10 in this application embodiment.

[0062] 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, characterized in that, include: The substrate includes a display area and a non-display area; An anode layer is disposed on the substrate, the anode layer comprising a plurality of anodes spaced apart in the display area; A pixel definition layer is disposed on the anode layer, and the pixel definition layer has multiple pixel openings that expose the anode. A light-emitting layer includes a plurality of light-emitting pixels, wherein the light-emitting pixels are located within the pixel openings; each light-emitting pixel includes a first sub-pixel and a second sub-pixel that are spaced apart. The cathode layer includes a plurality of cathodes corresponding to the light-emitting pixels. Each cathode includes a first electrode and a second electrode. The first electrode is located on the side of the first sub-pixel away from the anode, and the second electrode is located on the side of the second sub-pixel away from the anode. The first electrode and the second electrode of each cathode are insulated from each other. An overlap layer is located in the non-display area of ​​the substrate; the overlap layer includes a first overlap line and a second overlap line that are insulated from each other; at least a portion of the first electrode of the cathode is electrically connected to the first overlap line, and at least a portion of the second electrode of the cathode is electrically connected to the second overlap line.

2. The display panel according to claim 1, characterized in that, The plurality of light-emitting pixels are distributed in multiple rows along a first direction, and the first sub-pixel and the second sub-pixel of each row of light-emitting pixels are arranged along the first direction; in the first direction, the first electrode corresponding to the light-emitting pixel in the next row is electrically connected to the second electrode corresponding to the light-emitting pixel in the previous row.

3. The display panel according to claim 2, characterized in that, The first lap joint and the second lap joint extend along the first direction; The first and second bonding wires are distributed along a second direction on opposite sides of the display area; or The first and second connecting wires are distributed on the same side of the display area along the second direction.

4. The display panel according to claim 3, characterized in that, The display panel includes two first bonding wires and two second bonding wires. The two first bonding wires are distributed on opposite sides of the display area along the second direction, and the two second bonding wires are distributed on opposite sides of the display area along the second direction.

5. The display panel according to claim 2, characterized in that, The display panel includes a first isolation layer, which includes a plurality of first isolation portions and a plurality of second isolation portions. The plurality of first isolation portions are spaced apart along the first direction on the side of the first overlap line facing away from the substrate, and the exposed first overlap line between two adjacent first isolation portions forms a first overlap portion. The plurality of second isolation portions are spaced apart along the first direction on the side of the second overlap line facing away from the substrate, and the exposed second overlap line between two adjacent second isolation portions forms a second overlap portion. The first electrode and the second electrode of each cathode are electrically connected to one of the first overlap portion and the second overlap portion, respectively.

6. The display panel according to claim 5, characterized in that, In the first direction, the first isolation section and the second isolation section are alternately arranged.

7. The display panel according to claim 5, characterized in that, The display panel further includes a second isolation layer, which includes a plurality of third isolation portions located in the display area. The third isolation portions are disposed corresponding to the light-emitting pixels and are located between the first sub-pixel and the second sub-pixel corresponding to the light-emitting pixels. The third isolation portions are used to disconnect the first electrode and the second electrode of each cathode.

8. The display panel according to claim 7, characterized in that, The second isolation layer further includes a plurality of fourth isolation portions located in the non-display area, the fourth isolation portions being located on the side of the first isolation layer away from the substrate, so that the cathode layer is disconnected on opposite sides of the fourth isolation portions along the first direction.

9. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1 to 8.

Images