Display panel and under-screen camera device

Abstract

The present application provides a display panel and an under-screen camera device. The present application sets the cross-section of the area enclosed by the annular portion of the conductive enclosure structure in the pixel unit to a circular or elliptical shape in the plane direction parallel to the pixel definition layer, so that the cross-section of the entire pixel unit in the plane direction parallel to the pixel definition layer is circular or elliptical, thereby ensuring that the edge of the pixel unit has no right angles and sharp corners, which can reduce the diffraction effect of the display panel. Secondly, the present application defines the dividing portion extending along the first direction as a first dividing portion, and the cathode of the sub-pixel in the pixel accommodating area is arranged in contact with the adjacent first dividing portion to achieve electrical connection between the sub-pixel and the conductive enclosure structure, thereby ensuring mutual electrical connection between the cathodes of the sub-pixels in the pixel unit, which is beneficial to improving the display uniformity within the pixel unit.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and an under-screen camera device. Background Art

[0002] In order to meet user needs, local functional areas of some OLED (Organic Light-Emitting Diode) display devices need to have high light transmittance while displaying images normally, that is, a translucent display area needs to be set in the screen area above the light sensing device (mainly the under-screen camera area). The shapes of the translucent area and the opaque area of ​​the translucent display area are related to light diffraction, and the straight lines and sharp corners of the translucent boundaries tend to increase the range of diffraction. In order to reduce the impact of light diffraction on the light sensing elements under the screen, it is necessary to avoid straight lines or sharp corners in the transparent area.

[0003] At the same time, due to the setting of the light-transmitting area in the light-transmitting display area, the pixel opening rate in the light-transmitting display area is reduced, which affects the display effect. Summary of the invention

[0004] The main technical problem solved by the present application is to provide a display panel and an under-screen camera device to solve the problems in the prior art of how to reduce the influence of light diffraction on the under-screen light sensing element and how to improve the pixel aperture ratio.

[0005] In order to solve the above technical problems, the first technical solution provided by the present application is: providing a display panel, applied to an under-screen camera display device, wherein the display panel has an under-screen camera area; the under-screen camera area includes a pixel area and a light-transmitting area located on the side of the pixel area; wherein, it includes:

[0006] a pixel definition layer having a plurality of pixel openings arranged at intervals;

[0007] A plurality of pixel units are arranged in a pixel area of ​​the camera area under the screen; each of the pixel units comprises:

[0008] A conductive enclosure structure protrudes from the pixel definition layer and surrounds the pixel opening to form a plurality of pixel accommodating areas;

[0009] A plurality of sub-pixels are disposed in the pixel opening in a one-to-one correspondence and in the pixel accommodating area in a one-to-one correspondence;

[0010] Among them, the conductive enclosure structure includes a ring-shaped portion and a plurality of dividing portions, the cross-section of the area enclosed by the ring-shaped portion in the plane direction parallel to the pixel definition layer is circular or elliptical; the dividing portion divides the area enclosed by the ring-shaped portion to form a plurality of pixel accommodating areas arranged at intervals; the dividing portion extending along the first direction is defined as a first dividing portion; in each of the pixel units, the cathode of the sub-pixel in the pixel accommodating area is arranged by contacting the adjacent first dividing portion to achieve electrical connection between the sub-pixel and the conductive enclosure structure.

[0011] The sub-pixel includes an anode, a light-emitting layer and a cathode which are stacked in sequence; the cathode is evaporated on the surface of the light-emitting layer by an evaporation source, and the first direction is perpendicular to the scanning direction of the evaporation source.

[0012] Wherein, the conductive enclosure structure includes a conductive part and an insulating part arranged on the upper surface of the conductive part and shielding the conductive part; the insulating part extends from the conductive part in a direction parallel to the planar direction of the pixel definition layer in a direction away from the conductive part.

[0013] Among them, the display panel also includes a first conductive layer, a second conductive layer and a third conductive layer which are stacked in sequence in a direction away from the pixel definition layer; the first conductive layer and the second conductive layer are both located in the pixel area, and the first conductive layer, the second conductive layer and the third conductive layer are stacked to form an auxiliary electrode and an anode of the sub-pixel which are insulated from each other; the auxiliary electrode includes a first connecting electrode and a second connecting electrode which are electrically connected to each other, a portion of the third conductive layer located in the pixel area, the second conductive layer and the first conductive layer are stacked to form the first connecting electrode, and a portion of the third conductive layer located in the light-transmitting area forms the second connecting electrode; the conductive portion is electrically connected to the first connecting electrode through a via hole on the pixel definition layer.

[0014] Wherein, the second connecting electrode is located between two adjacent pixel units and is used to electrically connect the first connecting electrodes of two adjacent pixel regions.

[0015] Wherein, the first connecting electrode is a ring structure, and the conductive portion of the ring portion is electrically connected to the first connecting electrode through a via hole on the pixel definition layer;

[0016] or,

[0017] The first connection electrode is a mesh structure, and the conductive portion of the annular portion and the conductive portion of the segmentation portion are electrically connected to the first connection electrode through via holes on the pixel definition layer.

[0018] Wherein, the first conductive layer and the third conductive layer are both indium tin oxide, the second conductive layer is a metal layer; and the thickness of the third conductive layer is greater than or equal to 20 nanometers.

[0019] The remaining segmented parts except the first segmented part are defined as second segmented parts; the thickness of the first segmented part is greater than the thickness of the second segmented part, and greater than the thickness of the annular part.

[0020] The pixel units are arranged in an array, and the cross-section of the area enclosed by the annular portion in a plane direction parallel to the pixel definition layer is circular; the spacing between two adjacent pixel units is defined as a first value, and the radius of the circle is a second value; the first value is greater than or equal to half of the second value, and less than or equal to twice the second value.

[0021] In order to solve the above technical problems, the second technical solution provided by the present application is to provide an under-screen camera device, which includes:

[0022] A display panel, comprising the above-mentioned display panel; the display panel has a display side and a non-display side arranged oppositely;

[0023] The camera module is arranged on the non-display side of the display panel and corresponds to the camera area under the screen.

[0024] Beneficial effects of the present application: Different from the prior art, the present application provides a display panel and an under-screen camera device, and the display panel is applied to an under-screen camera display device. The display panel has an under-screen camera area. The under-screen camera area includes a pixel area and a light-transmitting area located on the side of the pixel area. Among them, the display panel includes a pixel definition layer and a plurality of pixel units. The pixel definition layer has a plurality of pixel openings arranged at intervals. A plurality of pixel units are arranged in the pixel area of ​​the under-screen camera area. Each pixel unit includes a conductive enclosure structure and a plurality of sub-pixels. The conductive enclosure structure is arranged protruding from the pixel definition layer and encloses the pixel opening to form a plurality of pixel accommodating areas. A plurality of sub-pixels are arranged in the pixel opening in a one-to-one correspondence and in the pixel accommodating area in a one-to-one correspondence. Among them, the conductive enclosure structure includes an annular portion and a plurality of segmentation portions, and the cross-section of the area enclosed by the annular portion in the plane direction parallel to the pixel definition layer is circular or elliptical. The segmentation portion divides the area enclosed by the annular portion to form a plurality of pixel accommodating areas arranged at intervals. The segmentation portion extending along the first direction is defined as a first segmentation portion. In each pixel unit, the cathode of the sub-pixel in the pixel accommodating area is arranged in contact with the adjacent first dividing portion to achieve electrical connection between the sub-pixel and the conductive enclosure structure. The present application sets the cross-section of the area enclosed by the annular portion of the conductive enclosure structure in the pixel unit to a circular or elliptical shape in the plane direction parallel to the pixel definition layer, so that the cross-section of the entire pixel unit in the plane direction parallel to the pixel definition layer is circular or elliptical, thereby ensuring that the edge of the pixel unit has no right angles and sharp corners, which can reduce the diffraction effect of the display panel. Secondly, the present application defines the dividing portion extending along the first direction as a first dividing portion, and makes the cathode of the sub-pixel in the pixel accommodating area contact with the adjacent first dividing portion to achieve electrical connection between the sub-pixel and the conductive enclosure structure, thereby ensuring the mutual electrical connection between the cathodes of the sub-pixels in the pixel unit, which is beneficial to improving the display uniformity in the pixel unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of an evaporation source and a limiting plate in the prior art;

[0027] Figure 2 is a structural schematic diagram of an embodiment of a display panel in the prior art;

[0028] Figure 3 is a schematic structural diagram of a first embodiment of a display panel provided by the present application;

[0029] Figure 4 is a structural schematic diagram of a first embodiment of a pixel unit provided by the present application;

[0030] Figure 5 It is a structural schematic diagram of the first embodiment of the conductive enclosure structure provided by the present application;

[0031] Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure at GG in the middle;

[0032] Figure 7 yes Figure 3 Schematic diagram of the cross-sectional structure at HH in the middle;

[0033] Figure 8 is a structural schematic diagram of a second embodiment of a pixel unit provided by the present application;

[0034] Fig. 9 is a structural schematic diagram of a third embodiment of a pixel unit provided by the present application;

[0035] Fig.10 is a structural schematic diagram of a fourth embodiment of a pixel unit provided by the present application;

[0036] Fig.11 is a structural schematic diagram of a fifth embodiment of a pixel unit provided by the present application;

[0037] Fig.12 is a structural schematic diagram of a sixth embodiment of a pixel unit provided by the present application;

[0038] Fig.13 is a schematic structural diagram of a second embodiment of a display panel provided by the present application;

[0039] Fig.14 is a structural schematic diagram of a seventh embodiment of a pixel unit provided by the present application;

[0040] Fig.15 It is a structural schematic diagram of the second embodiment of the conductive enclosure structure provided by the present application;

[0041] Fig.16 It is a structural schematic diagram of an embodiment of a display device provided in the present application.

[0042] Description of Figure Numbers:

[0043] 100, display panel; 10, pixel definition layer; 110, pixel opening; 20, pixel unit; 21, sub-pixel; 211, anode; 212, light-emitting layer; 213, cathode; 21A, first pixel; 21B, second pixel; 21C, third pixel; 22, conductive enclosure structure; 220, pixel accommodating area; 221, annular portion; 221A, sub-annular portion; 222, segmentation portion; 222A, first segmentation portion; 222B, second segmentation portion Dividing part; 223, conductive part; 224, insulating part; 30, first conductive layer; 40, second conductive layer; 50, third conductive layer; 60, auxiliary electrode; 61, first connecting electrode; 62, second connecting electrode; X, first direction; Y, second direction; 101, under-screen camera area; 102, pixel area; 103, light-transmitting area; 104, display side; 105, non-display side; 200, evaporation source; 300, limiting plate; 400, camera module. DETAILED DESCRIPTION

[0044] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0045] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] See also Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of an embodiment of a vapor deposition source and a limiting plate in the prior art, Figure 2 It is a structural schematic diagram of an embodiment of a display panel in the prior art.

[0050] In the actual evaporation process, since the evaporation source 200 forms a evaporation cloud in the long side direction of the evaporation source 200, the evaporation angle of the evaporation material cannot be controlled in the long side direction of the evaporation source 200. However, in the moving direction of the evaporation source 200 (i.e., the scanning direction of the evaporation source 200), the limiting plates 300 on both sides can be used to control the emission angle of the evaporation material. Figure 2In the existing design shown, the cathode 213 cannot completely cover the end of the light-emitting layer 212 along the long side direction of the evaporation source 200, so that the side wall of the conductive enclosure structure 22 extending along the moving direction of the evaporation source 200 will not contact the cathode 213, but the cathode 213 completely covers the end of the light-emitting layer 212 along the moving direction of the evaporation source 200, so that the side wall of the conductive enclosure structure 22 extending along the long side direction of the evaporation source 200 can overlap with the cathode 213 of the sub-pixel 21.

[0051] See also Figures 3 to 7 , Figure 3 is a schematic structural diagram of a first embodiment of a display panel provided in the present application, Figure 4 is a structural schematic diagram of a first embodiment of a pixel unit provided in the present application, Figure 5 is a schematic structural diagram of the first embodiment of the conductive enclosure structure provided by the present application, Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure at GG in the middle. Figure 7 yes Figure 3 Schematic diagram of the cross-sectional structure at HH in the figure.

[0052] Based on the above-mentioned evaporation technology, the present application provides a display panel 100, which is applied to an under-screen camera display device. The display panel 100 has an under-screen camera area 101. The under-screen camera area 101 includes a pixel area 102 and a light-transmitting area 103 located on the side of the pixel area 102. Among them, the display panel 100 includes a pixel definition layer 10 and a plurality of pixel units 20. The pixel definition layer 10 has a plurality of pixel openings 110 arranged at intervals. The plurality of pixel units 20 are arranged in the pixel area 102 of the under-screen camera area 101. Each pixel unit 20 includes a conductive enclosure structure 22 and a plurality of sub-pixels 21. The conductive enclosure structure 22 is arranged protruding from the pixel definition layer 10, and surrounds the pixel opening 110 to form a plurality of pixel accommodating areas 220. The plurality of sub-pixels 21 are arranged in the pixel opening 110 in a one-to-one correspondence, and are arranged in the pixel accommodating area 220 in a one-to-one correspondence. The conductive enclosure structure 22 includes an annular portion 221 and a plurality of segmentation portions 222, wherein the area enclosed by the annular portion 221 is circular or elliptical in cross section in a plane direction parallel to the pixel definition layer 10. The segmentation portions 222 segment the area enclosed by the annular portion 221 to form a plurality of pixel accommodation areas 220 arranged at intervals. The segmentation portions 222 extending along the first direction X are defined as first segmentation portions 222A. In each pixel unit 20, the cathode 213 of the sub-pixel 21 within the pixel accommodation area 220 is arranged in contact with the adjacent first segmentation portion 222A to achieve electrical connection between the sub-pixel 21 and the conductive enclosure structure 22.

[0053] The present application sets the cross section of the area enclosed by the annular portion 221 of the conductive enclosure structure 22 in the pixel unit 20 in the plane direction parallel to the pixel definition layer 10 to be circular or elliptical, so that the cross section of the entire pixel unit 20 in the plane direction parallel to the pixel definition layer 10 is circular or elliptical, thereby ensuring that the edge of the pixel unit 20 has no right angles and sharp corners, and can reduce the diffraction effect of the display panel 100. Secondly, the present application defines the segmentation portion 222 extending along the first direction X as a first segmentation portion 222A, and the cathode 213 of the sub-pixel 21 in the pixel accommodating area 220 is arranged in contact with the adjacent first segmentation portion 222A to achieve electrical connection between the sub-pixel 21 and the conductive enclosure structure 22, thereby ensuring mutual electrical connection between the cathodes 213 of the sub-pixels 21 in the pixel unit 20, which is conducive to improving the display uniformity in the pixel unit 20.

[0054] The pixel definition layer 10 is used to define the position of the sub-pixel 21. The pixel definition layer 10 has a plurality of pixel openings 110 arranged at intervals. The pixel openings 110 penetrate the pixel definition layer 10. The material and thickness of the pixel definition layer 10 are not limited here and are selected according to actual needs.

[0055] The plurality of pixel units 20 are arranged in an array. In this embodiment, the plurality of pixel units 20 are arranged at intervals from each other and in a matrix.

[0056] It should be understood that the display panel 100 also includes a main display area (not shown) located on the side of the under-screen camera area 101. The distribution of the sub-pixels 21 in the main display area is not limited here and can be selected according to actual needs.

[0057] Each pixel unit 20 includes a conductive enclosure structure 22 and a plurality of sub-pixels 21. Each conductive enclosure structure 22 is configured to enclose a plurality of pixel accommodating areas 220 to enclose a plurality of sub-pixels 21. There is no restriction on the number of sub-pixels 21 enclosed in the conductive enclosure structure 22. It is only necessary to ensure that the cross-section of the area enclosed by the annular portion 221 of the conductive enclosure structure 22 is circular or elliptical in the plane direction parallel to the pixel definition layer 10, so that the edge of the pixel unit 20 is non-straight or sharp, so as to reduce the diffraction effect of the display panel 100.

[0058] Each sub-pixel 21 corresponds to a color pixel, and the color pixel corresponding to the sub-pixel 21 is not limited here, and is selected according to actual needs. The sub-pixel 21 includes an anode 211, a light-emitting layer 212, and a cathode 213 stacked in sequence. The cathode 213 is evaporated on the surface of the light-emitting layer 212 by the evaporation source 200, and the first direction X is perpendicular to the scanning direction of the evaporation source 200. The present application utilizes the characteristic that the first segmentation portion 222A extending along the long side direction of the evaporation source 200 (i.e., the first direction X) of the conductive enclosure structure 22 can overlap with the cathode 213 of the sub-pixel 21, and does not limit the shape of the sub-pixel 21 in the pixel unit 20. It is only necessary to ensure that the sub-pixel 21 in the pixel unit 20 can overlap with the first segmentation portion 222A to achieve electrical connection between the sub-pixel 21 and the conductive enclosure structure 22.

[0059] In this embodiment, the plurality of sub-pixels 21 of different colors are respectively a first pixel 21A, a second pixel 21B, and a third pixel 21C. The first pixel 21A, the second pixel 21B, and the third pixel 21C correspond to one of a red pixel, a green pixel, and a blue pixel, respectively. In other embodiments, the plurality of sub-pixels 21 of different colors may be pixels of other colors, or may include sub-pixels 21 of two, four, or more than four different colors.

[0060] Each pixel unit 20 may include at least one sub-pixel 21 of the same color. When there are multiple sub-pixels 21 of the same color in each pixel unit 20, the shapes and sizes of the multiple sub-pixels 21 of the same color may be the same or different, which is not limited here and is selected according to actual needs.

[0061] The conductive enclosure structure 22 includes a conductive portion 223 and an insulating portion 224 disposed on the upper surface of the conductive portion 223 and shielding the conductive portion 223. The insulating portion 224 extends the conductive portion 223 in a direction parallel to the plane of the pixel definition layer 10 in a direction away from the conductive portion 223. It can be understood that the insulating portion 224 covers the conductive portion 223, and the positive projection area of ​​the insulating portion 224 on the pixel definition layer 10 is larger than the positive projection area of ​​the conductive portion 223 on the pixel definition layer 10. The conductive portion 223 is used to contact and conduct with the cathode 213 of the sub-pixel 21 enclosed by the conductive enclosure structure 22 to achieve electrical connection between the sub-pixel 21 and the conductive enclosure structure 22. Further, the insulating portion 224 can be regarded as an eaves structure. The insulating portion 224 is structurally configured so that the insulating portion 224 can be used to adjust the evaporation angle when evaporating the sub-pixel 21 , so that the cathode 213 of the sub-pixel 21 can better cover the end of the light-emitting layer 212 of the sub-pixel 21 and achieve good overlap with the conductive portion 223 .

[0062] In the plane direction parallel to the pixel definition layer 10, the conductive enclosure structure 22 includes an annular portion 221 and a plurality of segmentation portions 222, wherein the plurality of segmentation portions 222 segment the annular portion 221 into a plurality of sub-annular portions 221A, and adjacent sub-annular portions 221A share side walls. Each sub-annular portion 221A is arranged to enclose a pixel accommodating area 220, and a portion of the side wall of each sub-annular portion 221A is extended along the first direction X, so that the cathode 213 of the sub-pixel 21 enclosed in the sub-annular portion 221A is arranged in contact with the portion of the side wall extending along the first direction X to achieve electrical connection between the sub-annular portion 221A and the sub-pixel 21, thereby achieving electrical connection between the sub-annular portion 221A and the sub-pixel 21 and the conductive enclosure structure 22.

[0063] The remaining dividing portions 222 except the first dividing portion 222A are defined as second dividing portions 222B. The second dividing portion 222B may be a linear structure or an arc-shaped structure. There are no excessive restrictions here and the selection is made according to actual needs.

[0064] In this embodiment, the conductive enclosure structure 22 includes two first dividing parts 222A and two second dividing parts 222B. The first dividing part 222A and the second dividing part 222B are vertically arranged to divide the area surrounded by the annular part 221 into five pixel accommodating areas 220. There are two first pixels 21A in the pixel unit 20, which are respectively located in two non-adjacent pixel accommodating areas 220, and the sizes of the two first pixels 21A are different. There are two second pixels 21B in the pixel unit 20, which are respectively located in two non-adjacent pixel accommodating areas 220, and the sizes of the two second pixels 21B are different.

[0065] See also Figures 3 to 12 , Figure 8 is a schematic structural diagram of a second embodiment of a pixel unit provided in the present application, Fig. 9 is a schematic structural diagram of a third embodiment of a pixel unit provided in the present application, Fig.10 is a schematic structural diagram of a fourth embodiment of a pixel unit provided in the present application, Fig.11 is a schematic structural diagram of a fifth embodiment of a pixel unit provided in the present application, Fig.12 Schematic diagram of the structure of the sixth embodiment of the pixel unit provided in the present application.

[0066] In other embodiments, the conductive enclosure structure 22 may include two first dividing portions 222A, and the two first dividing portions 222A divide the area enclosed by the annular portion 221 into three pixel accommodating areas 220. The conductive enclosure structure 22 may also include three or more dividing portions 222, which divide the area enclosed by the annular portion 221 into three or more pixel accommodating areas 220, so that each pixel unit 20 can accommodate multiple sub-pixels 21 of the same color. Among them, the second dividing portion 222B can be a linear structure or an arc structure. It should be understood that the arrangement of the sub-pixels 21 in the pixel unit 20 in the present application includes but is not limited to this.

[0067] The display panel 100 further includes a first conductive layer 30, a second conductive layer 40, and a third conductive layer 50 which are stacked in sequence in a direction away from the pixel definition layer 10. The first conductive layer 30 and the second conductive layer 40 are both located in the pixel area 102, and the first conductive layer 30, the second conductive layer 40, and the third conductive layer 50 are stacked to form an auxiliary electrode 60 and an anode 211 of the sub-pixel 21 which are insulated from each other. The auxiliary electrode 60 includes a first connection electrode 61 and a second connection electrode 62 which are electrically connected to each other. The portion of the third conductive layer 50 located in the pixel area 102, the second conductive layer 40, and the first conductive layer 30 are stacked to form the first connection electrode 61, and the portion of the third conductive layer 50 located in the light-transmitting area 103 forms the second connection electrode 62. The conductive portion 223 is electrically connected to the first connection electrode 61 through the via hole on the pixel definition layer 10, thereby realizing the electrical connection between the conductive portion 223 and the second connection electrode 62, and then realizing the electrical connection between the second connection electrode 62 and the conductive enclosure structure 22. It can be understood that the anode 211 of the sub-pixel 21 is composed of a three-layer structure, the first connection electrode 61 in the auxiliary electrode 60 is composed of a three-layer structure, and the second connection electrode 62 in the auxiliary electrode 60 is composed of a one-layer structure. The second connection electrode 62 is electrically connected to the first connection electrode 61 and is insulated from the anode 211 to avoid short-circuiting the anode 211 and affecting the normal display of the under-screen camera area 101 in the display panel 100.

[0068] The second connecting electrode 62 is located between two adjacent pixel units 20, and is used to electrically connect the first connecting electrodes 61 of two adjacent pixel areas 102, so as to conduct electricity between the first connecting electrodes 61 in multiple pixel areas 102, thereby realizing a full-surface mesh connection of the cathode 213 of the sub-pixel 21, which is beneficial to the display uniformity of the display panel 100.

[0069] Further, the first conductive layer 30 and the third conductive layer 50 are both indium tin oxide (ITO), and the second conductive layer 40 is a metal layer. The metal layer can be a metal element such as silver or a metal compound. The thickness of the third conductive layer 50 is greater than or equal to 20 nanometers. The thickness of the third conductive layer 50 cannot be too thin to avoid the problem of voltage drop caused by excessive resistance of the second connection electrode 62, thereby affecting the display effect of the display panel 100.

[0070] The present application firstly patterns the first conductive layer 30 and the second conductive layer 40 with an anodic etching solution, and then patterns the third conductive layer 50 with oxalic acid or other etching solutions, thereby obtaining the first connecting electrode 61, the second connecting electrode 62 and the anode 211. The anode 211 and the auxiliary electrode 60 are insulated by the pixel definition layer 10. Compared with the preparation of the anode 211 in the prior art, the above preparation method does not add additional film layers and processes. In other words, the structural setting of the present application can not only reduce the diffraction effect of the display panel 100, but also does not increase the manufacturing cost.

[0071] Since the second conductive layer 40 is a metal layer, the second conductive layer 40 can form a light-shielding structure, that is, the pixel unit 20 is not light-transmissive, and only the light-transmissive region 103 is light-transmissive.

[0072] In this embodiment, the pixel units 20 are arranged in an array, and the cross section of the area enclosed by the annular portion 221 is circular in a plane direction parallel to the pixel definition layer 10. The second connection electrode 62 is a strip structure and does not cover the entire light-transmitting area 103, so as to ensure the light transmittance of the light-transmitting area 103, thereby ensuring the camera effect of the under-screen camera area 101, so that the under-screen camera area 101 has the dual functions of light transmission and display.

[0073] It should be understood that in other embodiments, the second connecting electrode 62 may also be in other shapes, without too many restrictions here. It only needs to ensure that the conductive enclosure structures 22 in different pixel units 20 can be electrically connected through the second connecting electrode 62 and do not affect the transmittance of the light-transmitting area 103.

[0074] The spacing between two adjacent pixel units 20 is defined as a first value, and the cross-section of the area enclosed by the annular portion 221 in the plane direction parallel to the pixel definition layer 10 is a circle, and the radius of the circle is a second value. The first value is greater than or equal to half of the second value, and less than or equal to twice the second value, to avoid the spacing between the pixel units 20 being too small, resulting in insufficient transmittance and affecting the camera effect of the camera area 101 under the screen, and to avoid the spacing between the pixel units 20 being too large, resulting in too low pixel density and affecting the display effect of the camera area 101 under the screen.

[0075] It should be understood that, in order to ensure the light transmittance of the light-transmitting area 103, the film layer of the light-transmitting area 103 is as few as possible and has a certain light transmittance. In this embodiment, the light-transmitting area 103 includes a stacked drive substrate (not shown), a first connection electrode 61, an encapsulation layer (not shown) and an organic layer (not shown). The structure and material of the drive substrate, the encapsulation layer and the organic layer are not limited here, and are selected according to actual needs.

[0076] In this embodiment, the first connection electrode 61 is an annular structure, and the conductive portion 223 of the annular portion 221 is electrically connected to the first connection electrode 61 through a via hole on the pixel definition layer 10. It can be understood that the first connection electrode 61 is arranged corresponding to the annular portion 221. The annular portion 221 and the first connection electrode 61 are electrically connected through the via hole, thereby realizing the electrical connection between the entire conductive enclosure structure 22 and the first connection electrode 61.

[0077] It should be understood that in other embodiments, the first connection electrode 61 is a mesh structure, and the conductive portion 223 of the annular portion 221 and the conductive portion 223 of the dividing portion 222 are electrically connected to the first connection electrode 61 through vias on the pixel definition layer 10 .

[0078] See also Figure 7 , Figures 13 to 15 , Fig.13 is a schematic structural diagram of a second embodiment of a display panel provided by the present application, Fig.14 is a structural schematic diagram of a seventh embodiment of a pixel unit provided in the present application, Fig.15 It is a structural schematic diagram of the second embodiment of the conductive enclosure structure provided in this application.

[0079] The second embodiment of the display panel 100 provided in the present application is basically similar in structure to the first embodiment of the display panel 100 provided in the present application, except that the thickness of the first dividing portion 222A is greater than the thickness of the second dividing portion 222B, and greater than the thickness of the annular portion 221 .

[0080] In this embodiment, the thickness of the first dividing portion 222A is greater than the thickness of the second dividing portion 222B, and greater than the thickness of the annular portion 221. It can be understood that, while keeping the thickness of the first dividing portion 222A unchanged and ensuring that the shape and size of the pixel unit 20 remain unchanged, the thickness of the second dividing portion 222B is reduced and the thickness of the annular portion 221 is reduced to increase the area of ​​the corresponding pixel accommodating region 220, thereby increasing the effective light-emitting area of ​​the sub-pixel 21 in the pixel unit 20, and then improving the pixel aperture ratio of the pixel unit 20, thereby improving the pixel aperture ratio of the under-screen camera area 101.

[0081] The thickness of the annular portion 221 refers to the thickness between the inner side wall and the outer side wall of the annular portion 221. The thickness of the partition portion 222 refers to the thickness between the two side walls of the partition portion 222 that are oppositely arranged along the short side direction of the partition portion 222. Specifically, the thickness of the annular portion 221 refers to the thickness between the inner side wall and the outer side wall of the insulating portion 224 of the annular portion 221.

[0082] The present application does not limit the thickness of the second segmented portion 222B and the thickness of the annular portion 221. In this embodiment, the thickness of the second segmented portion 222B is equal to the thickness of the annular portion 221, so as to simplify the difficulty of preparing the conductive enclosure structure 22.

[0083] The present application utilizes a conductive enclosure structure 22 along the evaporation source 200 (see Figure 1 ) in the long side direction (i.e., the first direction X) of the pixel 21 can overlap with the cathode 213 of the sub-pixel 21. The present application retains the thickness of the first dividing portion 222A extending along the first direction X unchanged, so that the cathode 213 of the sub-pixel 21 can be arranged in contact with the first dividing portion 222A to achieve and ensure good electrical connection between the sub-pixel 21 and the conductive enclosure structure 22. At the same time, the present application reduces the thickness of the annular portion 221 and the second dividing portion 222B of the conductive enclosure structure 22 that are not arranged in contact with the cathode 213 of the sub-pixel 21, thereby increasing the area of ​​the pixel accommodating region 220 in the pixel unit 20 without affecting the good electrical connection between the conductive enclosure structure 22 and the sub-pixel 21, thereby improving the pixel aperture ratio.

[0084] See also Fig.16 , Fig.16 It is a structural schematic diagram of an embodiment of a display device provided in the present application.

[0085] The present application provides a display device, which includes a display panel 100 and a camera module 400. The display panel 100 is the above-mentioned display panel 100. The display panel 100 has a display side 104 and a non-display side 105 that are arranged opposite to each other. The camera module 400 is arranged on the non-display side 105 of the display panel 100 and is arranged corresponding to the under-screen camera area 101.

[0086] The camera module 400 includes a camera. The camera is a front camera. When the camera is in use, the camera area 101 under the screen does not display an image, so that the camera can take pictures; when the camera is not in use, the camera area 101 under the screen can display an image, so that the screen ratio can be increased while retaining the camera function.

[0087] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0088] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, applied to an under-screen camera display device, wherein the display panel has an under-screen camera area; the under-screen camera area includes a pixel area and a light-transmitting area located on the side of the pixel area; characterized in that: include: a pixel definition layer having a plurality of pixel openings arranged at intervals; A plurality of pixel units are arranged in a pixel area of ​​the camera area under the screen; Each of the pixel units comprises: A conductive enclosure structure protrudes from the pixel definition layer and surrounds the pixel opening to form a plurality of pixel accommodating areas; A plurality of sub-pixels are disposed in the pixel opening in a one-to-one correspondence and in the pixel accommodating area in a one-to-one correspondence; The conductive enclosure structure includes an annular portion and a plurality of dividing portions, the cross section of the area enclosed by the annular portion in a plane direction parallel to the pixel definition layer is circular or elliptical; the dividing portion divides the area enclosed by the annular portion to form a plurality of pixel accommodating areas arranged at intervals; the dividing portion extending along the first direction is defined as a first dividing portion; in each of the pixel units, the cathode of the sub-pixel in the pixel accommodating area is arranged in contact with the adjacent first dividing portion to achieve electrical connection between the sub-pixel and the conductive enclosure structure; The sub-pixel comprises an anode, a light-emitting layer and the cathode which are stacked in sequence; the cathode is evaporated on the surface of the light-emitting layer by an evaporation source, and the first direction is perpendicular to the scanning direction of the evaporation source; The remaining segmented portions except the first segmented portion are defined as second segmented portions; the thickness of the first segmented portion is greater than the thickness of the second segmented portion, and greater than the thickness of the annular portion.

2. The display panel according to claim 1, characterized in that: The conductive enclosure structure includes a conductive portion and an insulating portion disposed on an upper surface of the conductive portion and shielding the conductive portion; the insulating portion extends out of the conductive portion in a direction parallel to a plane direction of the pixel definition layer toward a direction away from the conductive portion.

3. The display panel according to claim 2, characterized in that: The display panel also includes a first conductive layer, a second conductive layer and a third conductive layer which are stacked in sequence in a direction away from the pixel definition layer; the first conductive layer and the second conductive layer are both located in the pixel area, and the first conductive layer, the second conductive layer and the third conductive layer are stacked to form an auxiliary electrode insulated from each other and an anode of the sub-pixel; the auxiliary electrode includes a first connecting electrode and a second connecting electrode which are electrically connected to each other, a portion of the third conductive layer located in the pixel area, the second conductive layer and the first conductive layer are stacked to form the first connecting electrode, and a portion of the third conductive layer located in the light-transmitting area forms the second connecting electrode; the conductive portion is electrically connected to the first connecting electrode through a via hole on the pixel definition layer.

4. The display panel according to claim 3, characterized in that: The second connecting electrode is located between two adjacent pixel units, and is used to electrically connect the first connecting electrodes of two adjacent pixel regions.

5. The display panel according to claim 3, characterized in that: The first connecting electrode is a ring structure, and the conductive portion of the ring portion is electrically connected to the first connecting electrode through a via hole on the pixel definition layer; or, The first connection electrode is a mesh structure, and the conductive portion of the annular portion and the conductive portion of the segmentation portion are electrically connected to the first connection electrode through via holes on the pixel definition layer.

6. The display panel according to claim 3, characterized in that: The first conductive layer and the third conductive layer are both indium tin oxide, the second conductive layer is a metal layer; and the thickness of the third conductive layer is greater than or equal to 20 nanometers.

7. The display panel according to claim 1, characterized in that: The pixel units are arranged in an array, and the cross-section of the area enclosed by the annular portion in a plane direction parallel to the pixel definition layer is circular; the spacing between two adjacent pixel units is defined as a first value, and the radius of the circle is a second value; the first value is greater than or equal to half of the second value, and less than or equal to twice the second value.

8. An under-screen camera device, characterized in that: include: A display panel, comprising the display panel according to any one of claims 1 to 7; The display panel has a display side and a non-display side arranged opposite to each other; The camera module is arranged on the non-display side of the display panel and corresponds to the camera area under the screen.

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