Display panel and electronic equipment

Abstract

The present application provides a display panel and an electronic device, by making the ratio of the vertical distance from the center point of the function additional area to one of the first side and the third side to the vertical distance between the first side and the third side in the range of 1 / 10-1 / 2, and the ratio of the vertical distance from the center point of the function additional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side in the range of 1 / 10-1 / 2, so that when the photosensitive unit located on one side of the display panel and corresponding to the function additional area is a camera, the user can provide a head-on experience by using the camera for video communication.

Description

Technical Field

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

[0002] At present, the front cameras of smart mobile terminals such as mobile phones are all placed at the top of the screen of the smart mobile terminals. This design, when a first user uses the front camera to communicate with a second user via video, displays the image of the first user on the second user's smart mobile terminal, which cannot provide the second user with a face-to-face and eye-level experience with the first user, resulting in a poor video communication experience.

[0003] Therefore, it is necessary to propose a technical solution to solve the problem that the front camera is placed at the top of the screen of the smart mobile terminal, resulting in poor video communication experience between users. Summary of the invention

[0004] The purpose of the present application is to provide a display panel and an electronic device to solve the problem that traditional smart mobile terminals cannot provide users with a head-up experience during video communication.

[0005] To achieve the above object, the present application provides a display panel, wherein the display panel has at least one additional function area and a main display area located outside the additional function area.

[0006] The display panel includes a first side, a second side, a third side and a fourth side, the first side is arranged opposite to the third side, the second side is arranged opposite to the fourth side, the second side is connected between the first side and the third side, and the fourth side is connected between the first side and the third side.

[0007] The ratio of the vertical distance from the center point of the additional function area to one of the first side and the third side to the vertical distance between the first side and the third side is in the range of 1 / 10-1 / 2;

[0008] The ratio of the vertical distance from the center point of the additional functional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side is in the range of 1 / 10-1 / 2.

[0009] In the above display panel, the ratio of the vertical distance from the center point of the additional function area to one of the first side and the third side to the vertical distance between the first side and the third side is in the range of 1 / 8-1 / 2.

[0010] In the above display panel, a ratio of a vertical distance from a center point of the additional function area to one of the first side and the third side to a vertical distance between the first side and the third side is in a range of 1 / 3-2 / 5.

[0011] In the above display panel, the ratio of the vertical distance from the center point of the additional function area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side is in the range of 1 / 8-1 / 2.

[0012] In the above display panel, a ratio of a vertical distance from a center point of the additional function area to one of the second side and the fourth side to a vertical distance between the second side and the fourth side is in a range of 1 / 3-2 / 5.

[0013] In the above display panel, the transmittance of the additional function area is greater than the transmittance of the main display area.

[0014] In the above display panel, the light transmittance of the additional function area is greater than 30%, and the light transmittance of the main display area is less than 30%.

[0015] In the above-mentioned display panel, each of the additional function areas has at least one light-transmitting area, and the light-transmitting area is provided with multiple first display pixels. The display panel also includes multiple first pixel driving circuits, which are arranged at the periphery of the light-transmitting area and are used to drive the multiple first display pixels to emit light.

[0016] In the above-mentioned display panel, the display panel also includes multiple first signal lines and multiple second signal lines, the multiple first signal lines and the multiple second signal lines are all electrically connected to the multiple first pixel driving circuits, and the multiple first signal lines and the multiple second signal lines are all arranged on the periphery of the light-transmitting area.

[0017] In the above display panel, the plurality of first pixel driving circuits are electrically connected to the plurality of first display pixels through a plurality of transparent wires to drive the plurality of first display pixels to emit light.

[0018] In the above display panel, the plurality of transparent conductive lines are arranged in at least two layers.

[0019] In the above display panel, the area of ​​each light-transmitting region ranges from 0.36 mm 2 -100mm 2 .

[0020] In the above display panel, the function-addition area has one light-transmitting area.

[0021] In the above display panel, the function-addition area is at least one of a camera area, an optical touch area, and an optical fingerprint recognition area.

[0022] An electronic device comprises the above-mentioned display panel and a photosensitive unit, wherein the photosensitive unit is arranged on one side of the display panel and corresponds to the function additional area.

[0023] Beneficial effect: The present application provides a display panel and an electronic device, by making the ratio of the vertical distance from the center point of the function additional area to one of the first side and the third side to the vertical distance between the first side and the third side in the range of 1 / 10-1 / 2, and the ratio of the vertical distance from the center point of the function additional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side in the range of 1 / 10-1 / 2, so that when the photosensitive unit located on one side of the display panel and corresponding to the function additional area is a camera, the user can provide a head-on experience when using the camera for video communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic plan view of a display panel according to an embodiment of the present application;

[0025] Figure 2 for Figure 1 A first partial enlarged view of the display panel shown;

[0026] Figure 3 for Figure 1 A second partial enlarged view of the display panel shown;

[0027] Figure 4A for Figure 2 A partial enlarged view of the display panel shown;

[0028] Figure 4B for Figure 4A A first cross-sectional schematic diagram of a display panel is shown;

[0029] Figure 4C for Figure 4A A second cross-sectional schematic diagram of the display panel is shown;

[0030] Figure 4D for Figure 4A A third cross-sectional schematic diagram of the display panel is shown;

[0031] Figure 4E for Figure 4A A fourth cross-sectional schematic diagram of the display panel is shown;

[0032] Figure 4F for Figure 4A A fifth cross-sectional schematic diagram of the display panel is shown;

[0033] Figure 5 FIG. 1 is a schematic diagram of a first pixel driving circuit of the present application.

[0034] The reference numerals are as follows:

[0035] 100 display panel; 100a main display area; 100b additional function area; 100c light-transmitting area; P1 first display pixel; 1001 first side; 1002 second side; 1003 third side; 1004 fourth side; A center point; P1 first display pixel; 101 substrate; 1021 first pixel driving circuit; 1022 second pixel driving circuit; 103 insulating layer; 1031 first insulating layer; 1032 second insulating layer; 1033 third insulating layer ; 1034 fourth insulating layer; 104 transparent wire; 1041 first transparent wire; 1042 second transparent wire; 1043 second transparent wire; 1051 first anode; 1052 second anode; 1061 first sub-pixel; 1062 second sub-pixel; 107 pixel definition layer; 102A pixel driving circuit island; Vdd first power signal line; DTFT driving transistor; STFT1 first switching transistor; Cap storage capacitor; D data line; S scanning line. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] See also Figure 1 , which is a schematic plan view of a display panel according to an embodiment of the present application. The display panel 100 has at least one additional function area 100b and a main display area 100a located outside the additional function area 100b. Both the main display area 100a and the additional function area 100b of the display panel 100 are provided with pixels for full-surface display.

[0038] The display panel has a first side 1001, a second side 1002, a third side 1003 and a fourth side 1004. The first side 1001 is arranged opposite to the third side 1003. The second side 1002 is arranged opposite to the fourth side 1004. The second side 1002 is connected between the first side 1001 and the third side 1003. The fourth side 1004 is connected between the first side 1001 and the third side 1003. The first side 1001 and the third side 1003 are parallel and have the same length. The second side 1002 and the fourth side 1004 are parallel and have the same length. The angle between the adjacent two sides can be a right angle or an arc angle. Specifically, the angle between the adjacent two sides is an arc angle.

[0039] The function-addition area 100b is a display light-transmitting area, that is, the function-addition area 100b can display an image, and a photosensitive unit can also be set on one side of the display panel 100 and at a position corresponding to the function-addition area 100b, so that the display panel 100 has additional functions. The function-addition area 100b can be a camera area, that is, when the photosensitive unit is a camera, the display panel 100 can be applied to an electronic device with a camera function. The function-addition area 100b can also be an optical touch area, that is, the photosensitive unit is an optical touch component, and the display panel 100 can be applied to an electronic device with an optical touch function. The function-addition area 100b can also be an optical fingerprint recognition area, that is, the photosensitive unit is an optical fingerprint device, and the display panel 100 can be used for an electronic device with an optical fingerprint recognition function. The function-addition area 100b can also be a collection of at least two of the camera area, the optical touch area, and the optical fingerprint recognition area. The function-addition area 100b can be a square, a circle, or an irregular shape. The number of function-addition areas 100b can be one or more than two. The plurality of function-adding areas 100b may be arranged in a centralized manner or in a dispersed manner. In order to facilitate the description of the technical solution of the present application, the following description is based on the number of function-adding areas 100b being one.

[0040] The ratio of the vertical distance from the center point A of the additional function area 100b to one of the first side 1001 and the third side 1003 to the vertical distance H1 between the first side 1001 and the third side 1003 is in the range of 1 / 10-1 / 2. The ratio of the vertical distance from the center point A of the additional function area 100b to one of the second side 1002 and the fourth side 1004 to the vertical distance H2 between the second side 1002 and the fourth side 1004 is in the range of 1 / 10-1 / 2. By making the ratio of the vertical distance from the center point A of the additional function area 100b to different ends of the display panel 100 to the size of the display panel 100 a specific value, when the photosensitive unit located on one side of the display panel 100 and corresponding to the additional function area 100b is a camera, the user can provide a good head-up experience by using the display panel with the camera for video communication.

[0041] The display panel of the embodiment of the present application makes the ratio of the vertical distance from the center point of the function additional area to one of the first side and the third side to the vertical distance between the first side and the third side take a value range of 1 / 10-1 / 2, and the ratio of the vertical distance from the center point of the function additional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side take a value range of 1 / 10-1 / 2, so that when the photosensitive unit located on one side of the display panel and corresponding to the function additional area is a camera, the user can use the display panel with the camera for video communication to provide a good head-up experience.

[0042] The ratio of the vertical distance from the center point A of the additional function area 100b to one of the first side 1001 and the third side 1003 to the vertical distance H1 between the first side 1001 and the third side 1003 is in the range of 1 / 8-1 / 2. For example, the ratio of the vertical distance from the center point A of the additional function area 100b to one of the first side 1001 and the third side 1003 to the vertical distance between the first side 1001 and the third side 1003 is 1 / 6, 1 / 5, 11 / 30 or 2 / 5, etc., so that when a camera located on one side of the display panel 100 and corresponding to the additional function area 100b is imaged, the user can use the camera for video communication to provide a good head-on experience. Furthermore, the ratio of the vertical distance from the center point A of the additional function area 100b to one of the first side 1001 and the third side 1003 to the vertical distance H1 between the first side 1001 and the third side 1003 is in the range of 1 / 3-2 / 5, so as to further enable the camera located on one side of the display panel 100 and corresponding to the additional function area 100b to form an image, so that the user can use the display panel with the camera for video communication to provide a better head-up experience.

[0043] The ratio of the vertical distance from the center point A of the additional function area 100b to one of the second side 1002 and the fourth side 1004 to the vertical distance H2 between the second side 1002 and the fourth side 1004 is in the range of 1 / 8-1 / 2. For example, the ratio of the vertical distance from the center point A of the additional function area 100b to one of the second side 1002 and the fourth side 1004 to the vertical distance between the second side 1002 and the fourth side 1004 is 1 / 6, 1 / 5, 11 / 30 or 2 / 5, etc., so that when a camera located on one side of the display panel 100 and corresponding to the additional function area 100b is imaged, the user can use the camera for video communication to provide a good head-on experience. Furthermore, the ratio of the vertical distance from the center point A of the additional function area 100b to one of the second side 1002 and the fourth side 1004 to the vertical distance H2 between the second side 1002 and the fourth side 1004 is in the range of 1 / 3-2 / 5, so as to further enable the camera located on one side of the display panel 100 and corresponding to the additional function area 100b to be imaged, so that the user can use the display panel with the camera for video communication to provide a better head-up experience.

[0044] Furthermore, the transmittance of the additional function area 100b is greater than the transmittance of the main display area 100a, so that the photosensitive unit located on one side of the additional function area 100b and corresponding to the additional function area 100b can receive more light signals. When the photosensitive unit is a camera, the camera can receive more light signals to improve the imaging effect of the camera.

[0045] The transmittance of the additional function area 100b is greater than 30%, and the transmittance of the main display area 100a is less than 30%, that is, the additional function area 100b is a high transmittance area, and the main display area 100a is a low transmittance area. The transmittance of the main display area 100a is less than 30%, which is conducive to setting more driving circuits or wirings with metal shading layers, so as to set more pixels in the main display area 100a to improve the display effect. The transmittance of the additional function area 100b is greater than 30%, so that the additional function area 100b can display and meet the basic light transmittance requirements.

[0046] Furthermore, the transmittance of the additional function area 100b is greater than 50%, and the transmittance of the main display area 100a is less than 20%. For example, the transmittance of the additional function area 100b is 70%, 80% or 90%, and the transmittance of the main display area 100a is 15% or 10%. The transmittance of the additional function area 100b is greater than 50%, so that the photosensitive unit can receive more light signals, and the photosensitive unit can have a better imaging effect when it is a camera. The transmittance of the main display area 100a is less than 20%, which is conducive to setting more opaque metal layers in the main display area 100a, and correspondingly more pixels can be set to improve the display effect.

[0047] See also Figure 2 and Figure 3 , Figure 2 for Figure 1 The first partial enlarged view of the display panel shown, Figure 3 for Figure 1 The second partial enlarged view of the display panel is shown. Each additional function area 100b has at least one light-transmitting area 100c. Figure 2 As shown, the additional function area 100b may have a light-transmitting area 100c, and the light-transmitting area 100c may be located inside the additional function area 100b, that is, the size of the light-transmitting area 100c is smaller than that of the additional function area 100b; the additional function area 100b may also completely overlap with the light-transmitting area 100c. Figure 3 As shown, the function-added area 100b may also have multiple light-transmitting areas 100c, and the multiple light-transmitting areas 100c are evenly and regularly arranged in the function-added area 100b, and the area between two adjacent light-transmitting areas 100c may be light-transmitting or light-impermeable. The function-added area 100b may be a circular area or a rectangular area, etc. The light-transmitting area 100c may be a regular area, such as an axially symmetrical area, and the axially symmetrical area includes a square area, a triangular area, an elliptical area, a circular area, etc. The light-transmitting area 100c may also be an irregular area. Specifically, the function-added area 100b has one light-transmitting area 100c.

[0048] Please refer to 4A and 4B. Figure 4A for Figure 2 A partial enlarged view of the display panel shown, Figure 4B for Figure 4A The first cross-sectional schematic diagram of the display panel is shown in FIG. The display panel 100 has a main display area 100a and a function-added area 100b, wherein the function-added area 100b has a light-transmitting area 100c, and the light-transmitting area 100c is located in the function-added area 100b.

[0049] The main display area 100a is provided with a plurality of second display pixels (not shown), each of which includes at least three second sub-pixels 1062, such as a red second sub-pixel, a green second sub-pixel, and a blue second sub-pixel. Correspondingly, the main display area 100a is provided with a plurality of second pixel driving circuits 1022, each of which drives a corresponding second sub-pixel 1062. Each second sub-pixel 1062 includes a second anode 1052, which is a semi-transparent electrode or an opaque electrode. Each second pixel driving circuit 1022 is electrically connected to the second anode 1052 of each second sub-pixel 1062 through a conductive layer located between at least three insulating layers 103.

[0050] The light-transmitting area 100c is provided with a plurality of first display pixels P1, each of which includes at least three first sub-pixels 1061, for example, a red first sub-pixel, a green first sub-pixel and a blue first sub-pixel. Correspondingly, the display panel 100 also includes a plurality of first pixel driving circuits 1021, which are arranged at the periphery of the light-transmitting area 100c and are used to drive the plurality of first display pixels P1 to emit light, and each first pixel driving circuit 1021 drives a corresponding first sub-pixel 1061. Each first sub-pixel 1061 includes a first anode 1051, which is a semi-transparent electrode or an opaque electrode. The plurality of first pixel driving circuits 1021 are arranged at the periphery of the light-transmitting area 100c, so that the metal light-shielding layer of the light-transmitting area 100c is reduced, thereby increasing the light transmittance of the light-transmitting area 100c, which is conducive to the light transmittance of the light-transmitting area 100c being greater than the light transmittance of the main display area 100a.

[0051] The area of ​​each light-transmitting region 100c is 0.32 mm 2 -120mm 2 , to ensure that when the function-added area 100b of the display panel 100 is provided with a camera, the camera can have a good photographing effect and reduce the process difficulty. The area of ​​the light-transmitting area 100c is less than 0.32mm 2 This will cause light interference in the light-transmitting area 100c, which is not conducive to camera imaging; and the area of ​​the light-transmitting area 100c is greater than 120mm 2 This will increase the difficulty of the process. For example, more wires are needed to connect the first display pixel P1 and the first pixel driving circuit 1021 outside the light-transmitting area 100c. More wires arranged in the same layer will increase the risk of short circuit between two adjacent wires. More wires arranged in multiple layers will increase the risk of poor electrical contact between two adjacent layers of wires. That is, the area of ​​the light-transmitting area 100c is greater than 120mm. 2 This will increase the difficulty of manufacturing the display panel 100. Furthermore, the area of ​​each light-transmitting region 100c is 0.36 mm 2 -100mm 2 , so as to further improve the camera's photographic effect and reduce the difficulty of the manufacturing process of the display panel 100.

[0052] The ratio of the sum of the areas of the first anodes 1051 of the plurality of first display pixels P1 in each light-transmitting area 100c to the area of ​​the corresponding light-transmitting area 100c is less than 50%, so as to ensure that the light-transmitting area 100c has sufficient light-transmitting area, so that the photosensitive unit can receive sufficient light signals, and the photosensitive unit can have a good imaging effect when it is a camera. The ratio of the sum of the areas of the first anodes 1051 of the plurality of first display pixels P1 in each light-transmitting area 100c to the area of ​​the corresponding light-transmitting area 100c is greater than 5%, so as to ensure that the light-transmitting area 100c has sufficient first display pixels P1 for display. The ratio of the sum of the areas of the first anodes 1051 of the plurality of first display pixels P1 in each light-transmitting area 100c to the area of ​​the corresponding light-transmitting area 100c is in the range of 8%-45%, so as to achieve a balance between the display function and the light-transmitting function of the light-transmitting area 100c.

[0053] The plurality of first pixel driving circuits 1021 may all be arranged in the function-addition area 100b and outside the light-transmitting area 100c. The plurality of first pixel driving circuits 1021 may all be arranged in the main display area 100a. The plurality of first pixel driving circuits 1021 may also include some first pixel driving circuits 1021 arranged in the function-addition area 100b and outside the light-transmitting area 100c, and some first pixel driving circuits 1021 arranged in the main display area 100a. The plurality of first pixel driving circuits 1021 may be dispersedly and regularly arranged outside the light-transmitting area 100c, or may be concentratedly arranged outside the light-transmitting area 100c.

[0054] like Figure 4A As shown, a plurality of first pixel driving circuits 1021 form at least one pixel driving circuit island 102A disposed at the periphery of the light-transmitting area 100c, and each pixel driving circuit island 102A is formed by a plurality of first pixel driving circuits 1021 being distributed in a concentrated manner. Each pixel driving circuit island 102A includes m×n first pixel driving circuits 1021 arranged in an array, m represents the number of rows of the first pixel driving circuits 1021, n represents the number of columns of the first pixel driving circuits 1021, m and n are both positive integers, and at least one of m and n is greater than 1. The value range of m is greater than 3 and less than 128, and the value range of n is greater than 1 or equal to 1 and less than 128. Further, the value range of m is greater than or equal to 3 and less than 64, and the value range of n is greater than or equal to 1 and less than 64. In each pixel driving circuit island 102A, the distance between two adjacent first pixel driving circuits 1021 is smaller than the distance between two adjacent first display pixels P1 , or the distance between two adjacent first pixel driving circuits 1021 is zero.

[0055] The plurality of first pixel driving circuits 1021 are electrically connected to the plurality of first display pixels P1 through the plurality of transparent wires 104 to drive the plurality of first display pixels P1 to emit light, so as to avoid introducing metal light-shielding wires into the light-transmitting area 100c, thereby improving the light transmittance of the light-transmitting area 100c. The transparent wires 104 are made of materials selected from indium tin oxide, indium zinc oxide or nano silver wires.

[0056] The plurality of transparent conductive wires 104 are arranged in at least two layers to increase the wiring space of the transparent conductive wires 104 and avoid short circuits caused by narrow spacing between adjacent transparent conductive wires 104. The spacing between two adjacent transparent conductive wires 104 in the same layer is greater than 2 microns to avoid short circuits caused by two adjacent transparent conductive wires 104 in the same layer. The line width of each transparent conductive wire 104 is greater than 1 micron to avoid the transparent conductive wire 104 being too narrow and easy to break or having a large impedance.

[0057] A plurality of transparent wires 104 are arranged between at least three insulating layers 103. At least three insulating layers 103 cover a plurality of first pixel driving circuits 1021, a plurality of second pixel driving circuits 1022 and a substrate 101. A plurality of first sub-pixels 1061 of first display pixels P1 and a plurality of second sub-pixels 1062 of second display pixels are arranged on a side of at least three insulating layers 103 away from the substrate 101. The first anode 1051 is electrically connected to the transparent wire 104 through a via located in the insulating layer 103, and the transparent wire 104 is electrically connected to the first pixel driving circuit 1021 through a via located in the insulating layer 104, so that the first sub-pixel 1061 is electrically connected to the first pixel driving circuit 1021. The insulating layer 103 may be an organic insulating layer, or an inorganic insulating layer. The material for preparing the organic insulating layer is selected from polyimide and photoresist, etc. The material for preparing the inorganic insulating layer is selected from silicon nitride, silicon oxide or silicon oxynitride.

[0058] Some of the first sub-pixels 1061 may be electrically connected to the plurality of first pixel driving circuits 1021 in a one-to-one correspondence through the transparent wires 104 located on one layer, and another portion of the first sub-pixels 1061 may be electrically connected to another portion of the plurality of first pixel driving circuits 1021 through the transparent wires 104 located on another layer. Figure 4BAs shown, the plurality of transparent wires 104 include a first transparent wire 1041, a second transparent wire 1042, and a third transparent wire 1043 located in different layers. The second transparent wire 1042 and the third transparent wire 1043 are both located in the light-transmitting area 100c, and the first transparent wire 1041 extends from outside the light-transmitting area 100c to inside the light-transmitting area 100c and is located in the function-addition area 100b. The at least three insulating layers 103 include a first insulating layer 1031, a second insulating layer 1032, a third insulating layer 1033, and a fourth insulating layer 1034. The first insulating layer 1031 covers the first pixel driving circuit 1021, the second pixel driving circuit 1022, and the substrate 101. The first transparent wire 1041 is disposed on the first insulating layer 1031. The second insulating layer 1032 covers the first transparent wire 1041 and the first insulating layer 1031. The second transparent wire 1042 is disposed on the second insulating layer 1032. The third insulating layer 1033 covers the second transparent conductive wire 1042 and the second insulating layer 1032. The third transparent conductive wire 1043 is disposed on the third insulating layer 1033. The fourth insulating layer 1034 covers the third transparent conductive wire 1043 and the third insulating layer 1033. The first anode 1051 and the second anode 1052 are disposed on the fourth insulating layer 1034, the first anode 1051 is disposed in the light-transmitting area 100c, and the second anode 1052 is disposed in the main display area 100a. The pixel definition layer 107 covers the fourth insulating layer 1034, a portion of the edge area of ​​the first anode 1051, and a portion of the edge area of ​​the second anode 1052. The pixel definition layer 107 is provided with a first opening corresponding to each first anode 1051, and a second opening corresponding to each second anode 1052. The first anode 1051 is electrically connected to the first transparent wire 1041 through the via holes on the fourth insulating layer 1034, the third insulating layer 1033 and the second insulating layer 1032, and the first transparent wire 1041 is electrically connected to the first pixel driving circuit 1021 through the via holes on the first insulating layer 1031. Figure 4C As shown, it is Figure 2 A second cross-sectional schematic diagram of a display panel is shown. Figure 4C The display panel shown is Figure 4B The display panels shown are basically similar, except that the first transparent conductive wire 1041 and the third transparent conductive wire 1043 are arranged in the light-transmitting area 100c, the second transparent conductive wire 1042 extends from outside the light-transmitting area 100c to inside the light-transmitting area 100c and is located in the function-added area 100b, the first anode 1051 is electrically connected to the second transparent conductive wire 1042 through vias connected on the fourth insulating layer 1034 and the third insulating layer 1033, and the second transparent conductive wire 1042 is electrically connected to the first pixel driving circuit 1021 through vias connected on the second insulating layer 1032 and the first insulating layer 1031.

[0059] Some of the first sub-pixels 1061 may be electrically connected via at least two layers of transparent conductive wires 104. Specifically, Figure 4D As shown, it is Figure 4A A third cross-sectional schematic diagram of a display panel is shown. Figure 4D The display panel shown is Figure 4B The display panel substrate shown is similar to that shown in the figure, except that the first anode 1051 is electrically connected to the second transparent wire 1042 through the via holes connected to the fourth insulating layer 1034 and the third insulating layer 1033, the second transparent wire 1042 is electrically connected to the first transparent wire 1041 through the via holes on the second insulating layer 1032, and the first transparent wire 1041 is electrically connected to the first pixel driving circuit 1021 through the via holes on the first insulating layer 1031. Figure 4E As shown, it is Figure 4A A fourth cross-sectional schematic diagram of a display panel is shown. Figure 4E The display panel shown is Figure 4B The display panel substrate shown is similar, except that the first anode 1051 is electrically connected to the third transparent wire 1043 through the via hole on the fourth insulating layer 1034, the third transparent wire 1043 is electrically connected to the second transparent wire 1042 through the via hole on the third insulating layer 1033, the second transparent wire 1042 is electrically connected to the first transparent wire 1041 through the via hole on the second insulating layer 1032, and the first transparent wire 1041 is electrically connected to the first pixel driving circuit 1021 through the via hole on the first insulating layer 1031.

[0060] Part of the first sub-pixels 1061 is electrically connected to the first pixel driving circuit 1021 through the transparent wires 104 located in the function-added area 100b. Part of the first sub-pixels 1061 is electrically connected to the first pixel driving circuit 1021 through the transparent wires 104 located in the function-added area 100b and the main display area 100a. By arranging part of the transparent wires 104 in the main display area 100a to further increase the wiring space of the transparent wires 104, short circuits between adjacent transparent wires 104 in the same layer are avoided. Specifically, Figure 4B , Figure 4C , Figure 4D as well as Figure 4E As shown, the first sub-pixel 1061 is electrically connected via the first transparent conductive line 1041, the second transparent conductive line 1042 and the third transparent conductive line 1043 located in the function additional area 100b. Figure 4F As shown, it is Figure 4A A fifth cross-sectional schematic diagram of a display panel is shown. Figure 4F The display panel and Figure 4EThe display panels are substantially similar, except that the first transparent wire 1041 extends from the main display area 100a to the function-added area 100b, the second transparent wire 1042 is located in the main display area 100a, and the third transparent wire 1043 extends from the main display area 100a to the light-transmitting area 100c. The first anode 1051 is electrically connected to the third transparent wire 1043 through a via hole on the fourth insulating layer 1034, the third transparent wire 1043 is electrically connected to the second transparent wire 1042 through a via hole on the third insulating layer 1033, the second transparent wire 1042 is electrically connected to the first transparent wire 1041 through a via hole on the second insulating layer 1032, and the first transparent wire 1041 is electrically connected to the first pixel driving circuit 1021 through a via hole on the first insulating layer 1031.

[0061] The pixel density of the first display pixel P1 in the light-transmitting area 100c may be smaller than the pixel density of the second display pixel in the main display area 100a, and / or the spacing between two adjacent first display pixels P1 is larger than the spacing between two adjacent second display pixels, and / or the size of the first display pixel 101 in the light-transmitting area 100c is smaller than the size of the second display pixel in the main display area 100a, so that the transmittance of the light-transmitting area 100c is greater than the transmittance of the main display area 100a. Further, the size of the first anode 1051 is smaller than the size of the second anode 1052, and / or the size of the first opening of the pixel definition layer 107 corresponding to each first sub-pixel 1061 is smaller than the size of the second opening of the pixel definition layer 107 corresponding to each second sub-pixel 1062, so that the size of the first sub-pixel 1061 is smaller than the size of the second sub-pixel 1062, which is conducive to the size of the first display pixel P1 being smaller than the size of the second display pixel, so that the transmittance of the light-transmitting area 100c is greater than the transmittance of the main display area 100a.

[0062] The first pixel driving circuit 1021 and the second pixel driving circuit 1022 both include devices and wiring, the devices include switching elements and capacitors, and the wiring includes signal routing. The circuit design of the multiple first pixel driving circuits 1021 is different from the circuit design of the multiple second pixel driving circuits 1022 so that when the layout space of the display panel 100 is limited, the multiple first pixel driving circuits 1021 can be arranged on the periphery of the light-transmitting area 100c. Specifically, the area occupied by each first pixel driving circuit 1021 in the display panel 100 is smaller than the area occupied by each second pixel driving circuit 1022 in the display panel 100, so as to reduce the space occupied by the multiple first pixel driving circuits 1021 as a whole, and at the same time, the light-transmitting area 100c can be designed to be larger.

[0063] Specifically, the sum of the device areas of each first pixel driving circuit 1021 is smaller than the sum of the device areas of each second pixel driving circuit 1022, and / or the sum of the number of devices of each first pixel driving circuit 1021 is smaller than the sum of the number of devices of each second pixel driving circuit 1022, and / or the average wiring area of ​​each first pixel driving circuit 1021 is smaller than the average wiring area of ​​each second pixel driving circuit 1022, wherein the devices include at least one of a switching unit and a capacitor, and the wiring includes multiple signal lines.

[0064] The device size in the first pixel driving circuit 1021 is smaller than the device size in the second pixel driving circuit 1022, so that the sum of the device areas of the first pixel driving circuit 1021 is smaller than the sum of the device areas of the second pixel driving circuit 1022. For example, the size of the switch unit in the first pixel driving circuit 1021 is smaller than the size of the switch unit in the second pixel driving circuit 1022, and / or the size of the capacitor in the first pixel driving circuit 1021 is smaller than the size of the capacitor in the second pixel driving circuit 1022. At this time, the first pixel driving circuit 1021 and the second pixel driving circuit 1022 can simultaneously adopt one of the 7T1C circuit, the 6T1C circuit, the 4T1C circuit and the 2T1C circuit, the difference being that the device size in the first pixel driving circuit 1021 is smaller than the device size in the second pixel driving circuit 1022, wherein the 7T1C circuit includes 7 thin film transistors and 1 capacitor, the 6T1C circuit includes 6 thin film transistors and 1 capacitor, the 4T1C circuit includes 4 thin film transistors and 1 capacitor, and the 2T1C circuit includes 2 thin film transistors and 1 capacitor. The 7T1C circuit, the 6T1C circuit, the 4T1C circuit and the 2T1C circuit all adopt conventional designs in the art, and are not specifically limited in this application.

[0065] The second pixel driving circuit 1022 adopts a 7T1C circuit, and the first pixel driving circuit 1021 adopts at least one of a 2T1C circuit, a 4T1C circuit, and a 6T1C circuit; or, the second pixel driving circuit 1022 adopts a 6T1C circuit, and the first pixel driving circuit 1021 adopts at least one of a 4T1C circuit and a 2T1C circuit; or, the second pixel driving circuit 1022 adopts a 4T1C circuit, and the first pixel driving circuit 1021 adopts a 2T1C circuit, so that the sum of the number of devices in each first pixel driving circuit 1021 is less than the sum of the number of devices in each second pixel driving circuit 1022.

[0066] Two adjacent first pixel driving circuits 1021 share at least one signal wiring, and the two adjacent first pixel driving circuits 1021 are arranged in mirror symmetry with respect to one signal wiring, and the signal wiring includes a power signal wiring, so that the average wiring area occupied by each first pixel driving circuit 1021 is smaller than the average wiring area occupied by each second pixel driving circuit 1022. The wiring area of ​​the plurality of first pixel driving circuits 1021 is reduced, so that the area occupied by the plurality of first pixel driving circuits 1021 in the display panel 100 is further reduced, which is more conducive to further increasing the size of the display light-transmitting area 100c. Specifically, as Figure 5 As shown, it is a schematic diagram of the first pixel driving circuit of the present application. The first pixel driving circuit 1021 adopts a 2T1C circuit, two adjacent first pixel driving circuits 1021 share a first power signal line Vdd, and the driving transistors DTFT, the first switching transistors STFT1 and the storage capacitor Cap of the two adjacent first pixel driving circuits 1021 are respectively arranged in mirror symmetry on the opposite sides of the first power signal line Vdd, so as to reduce the total number of wirings required for the multiple first pixel driving circuits 1021, and the mirror symmetry arrangement of the two adjacent first pixel driving circuits 1021 is conducive to reducing the overall space occupied by the first pixel driving circuit 1021. The second pixel driving circuit 1022 of the main display area 100a adopts a conventional design, so the average wiring area of ​​each first pixel driving circuit 1021 is smaller than the average wiring area of ​​each second pixel driving circuit 1022.

[0067] The display panel 100 further includes a plurality of first signal lines (not shown) and a plurality of second signal lines (not shown). The plurality of first signal lines and the plurality of second signal lines are used to load different electrical signals to the plurality of first pixel driving circuits 1021, so as to control the first display pixel P1 to emit light. The plurality of first signal lines and the plurality of second signal lines are electrically connected to the plurality of first pixel driving circuits 1021, and the plurality of first signal lines and the plurality of second signal lines are arranged at the periphery of the light-transmitting area 100c. When the light-transmitting area 100c is located in the function-addition area 100b, the plurality of first signal lines and the plurality of second signal lines can be arranged in the function-addition area 100b and outside the light-transmitting area 100c, and the plurality of first signal lines and the plurality of second signal lines can also be arranged outside the function-addition area 100b. The plurality of first signal lines are at least one of a scan line and a reset line. The second signal line is a data line. The transmittance of the light-transmitting area 100c is further improved by arranging the plurality of first signal lines and the plurality of second signal lines at the periphery of the light-transmitting area 100c.

[0068] The present application also provides an electronic device, the electronic device includes the above-mentioned display panel and a photosensitive unit, the photosensitive unit is arranged on one side of the display panel and is arranged corresponding to the function additional area. The photosensitive unit can be a camera, an optical touch component, a fingerprint recognition sensor, etc. Specifically, the photosensitive unit is a camera. The electronic device can be a device with a single camera, a device with dual cameras, or a device with multiple cameras.

[0069] The electronic device of the present application makes the ratio of the vertical distance from the center point of the function additional area of ​​the display panel to one of the first side and the third side to the vertical distance between the first side and the third side take a value range of 1 / 10-1 / 2, and the ratio of the vertical distance from the center point of the function additional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side take a value range of 1 / 10-1 / 2, so that when the photosensitive unit located on one side of the display panel and corresponding to the function additional area is a camera, the user can use the camera of the electronic device for video communication to provide a head-on experience.

[0070] The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technical personnel in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: The display panel has at least one additional function area and a main display area located outside the additional function area, the additional function area includes at least one light-transmitting area, the light-transmitting area is provided with a plurality of first display pixels, and the area of ​​each light-transmitting area is in the range of 0.36 mm 2 -100mm 2 Each of the first display pixels includes at least three first sub-pixels, each of the first sub-pixels includes a first anode, and the ratio of the sum of the areas of the first anodes of the plurality of first display pixels in each of the light-transmitting regions to the area of ​​the corresponding light-transmitting region is in a range of 8% to 45%; The display panel includes a first side, a second side, a third side and a fourth side, the first side is arranged opposite to the third side, the second side is arranged opposite to the fourth side, the second side is connected between the first side and the third side, the fourth side is connected between the first side and the third side, and the ratio of the vertical distance from the center point of the additional function area to one of the first side and the third side to the vertical distance between the first side and the third side is in the range of 1 / 10-2 / 5; The ratio of the vertical distance from the center point of the additional function area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side is in the range of 1 / 10-2 / 5.

2. The display panel according to claim 1, characterized in that: The ratio of the vertical distance from the center point of the additional functional area to one of the first side and the third side to the vertical distance between the first side and the third side is in the range of 1 / 8-2 / 5.

3. The display panel according to claim 1 or 2, characterized in that: The ratio of the vertical distance from the center point of the additional function area to one of the first side and the third side to the vertical distance between the first side and the third side is in the range of 1 / 3-2 / 5.

4. The display panel according to claim 1, characterized in that: The ratio of the vertical distance from the center point of the additional functional area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side is in the range of 1 / 8-2 / 5.

5. The display panel according to claim 1 or 4, characterized in that: The ratio of the vertical distance from the center point of the additional function area to one of the second side and the fourth side to the vertical distance between the second side and the fourth side is in the range of 1 / 3-2 / 5.

6. The display panel according to claim 1, characterized in that: The light transmittance of the additional function area is greater than the light transmittance of the main display area.

7. The display panel according to claim 1 or 6, characterized in that: The light transmittance of the additional function area is greater than 30%, and the light transmittance of the main display area is less than 30%.

8. The display panel according to claim 1, characterized in that: The display panel further includes: A plurality of first pixel driving circuits are arranged at the periphery of the light-transmitting area and are used to drive the plurality of first display pixels to emit light, two adjacent first pixel driving circuits share at least one signal line, and two adjacent first pixel driving circuits are arranged in mirror symmetry with respect to one signal line, and the signal line includes a power signal line; A plurality of first signal lines and a plurality of second signal lines are electrically connected to a plurality of the first pixel driving circuits and are disposed at the periphery of the light-transmitting area; A plurality of transparent conductive lines, wherein the plurality of first pixel driving circuits are electrically connected to the plurality of first display pixels through the plurality of transparent conductive lines.

9. The display panel according to claim 8, characterized in that: The plurality of first signal lines include at least one of scan lines and reset lines, and the plurality of second signal lines include data lines.

10. The display panel according to claim 8, characterized in that: The line width of one of the transparent conductive lines is greater than 1 micron, and the distance between two adjacent transparent conductive lines in the same layer is greater than 2 microns.

11. The display panel according to claim 8, characterized in that: The plurality of transparent conductive lines are arranged in at least two layers.

12. The display panel according to claim 1 or 8, characterized in that: The function-adding area has a light-transmitting area.

13. The display panel according to claim 1, characterized in that: The function-addition area is at least one of a camera area, an optical touch area, and an optical fingerprint recognition area.

14. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 13 and a photosensitive unit, wherein the photosensitive unit is arranged on one side of the display panel and corresponds to the function additional area.

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