WO2021027107A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2021027107A1
WO2021027107A1 PCT/CN2019/116106 CN2019116106W WO2021027107A1 WO 2021027107 A1 WO2021027107 A1 WO 2021027107A1 CN 2019116106 W CN2019116106 W CN 2019116106W WO 2021027107 A1 WO2021027107 A1 WO 2021027107A1
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WO
WIPO (PCT)
Prior art keywords
display
area
pixel
pixel driving
driving circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/116106
Other languages
English (en)
French (fr)
Inventor
赵勇
廖作敏
陈涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/640,256 priority Critical patent/US11456346B2/en
Publication of WO2021027107A1 publication Critical patent/WO2021027107A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes

Definitions

  • the present invention relates to the field of display technology, in particular to a display panel and a display device.
  • the full screen brings a new visual experience and sensory impact to people.
  • the commonly used design of the under-screen camera is to dig holes in the camera area of the display panel, and the light-transmitting area of the camera does not display the picture.
  • the panel penetration rate will be relatively high, but the user's display experience is not good, and the full-screen effect cannot be presented; the other way is to set the display light-transmitting area on the display panel, and set the screen at the position corresponding to the display light-transmitting area of the display panel
  • the lower camera improves the user experience.
  • the light transmittance of the display light-transmitting area of the display panel is low, so that the camera under the screen has a poor photographing effect.
  • the present invention provides a display panel and a display device, which solves the technical problem that the light transmittance of the display light-transmitting area of the existing display panel is low, so that the photographing effect of the under-screen camera is poor.
  • An embodiment of the present invention provides a display panel, the display panel has a main display area and at least one additional function area, the additional function area has at least one display light-transmitting area, and the display light-transmitting area has a size of 600 ⁇ 10000um, the display panel includes:
  • a substrate, a plurality of first pixel driving circuits are arranged on the substrate in the periphery of the display light transmission area and in the function additional area;
  • Transparent wiring arranged between the at least two insulating layers
  • a plurality of first display pixels arranged on a side of the insulating layer away from the substrate and located in the display light-transmitting area, the first display pixels including a first pixel anode;
  • the first pixel anode is electrically connected to at least a part of the first pixel driving circuit through the transparent wiring, so that the first pixel driving circuit drives the first display pixel to emit light.
  • the first pixel anode passes through the transparent path at least partly located in the display light-transmitting area and partly located at the periphery of the display light-transmitting area and in the function additional area.
  • the line is electrically connected to the first pixel driving circuit.
  • the first pixel anode passes through the transparent wiring at least partly located in the main display area and partly located at the periphery of the display light-transmitting area and in the function additional area It is electrically connected to the first pixel driving circuit.
  • the transparent wiring has at least two layers, each of the insulating layers is provided with a via hole, and the transparent wiring between two adjacent layers passes through the via hole. Sexual connection.
  • a layer of the transparent layer is passed between some of the first display pixels and the first pixel drive circuit among the plurality of first display pixels in the display light-transmitting area.
  • the wiring is electrically connected; a part of the first display pixels and the first pixel driving circuit among the plurality of first display pixels are electrically connected through another layer of the transparent wiring.
  • a part of the first display pixels of the plurality of the first display pixels in the display light-transmitting area are connected between the first display pixels and the first pixel driving circuit through multiple layers of the transparent
  • the wires are electrically connected, wherein the orthographic projections of the multilayer transparent wires on the substrate at least partially overlap.
  • An embodiment of the present invention provides a display panel, the display panel has a main display area and at least one additional function area, the additional function area has at least one display light-transmitting area, and the display panel includes:
  • a substrate, a plurality of first pixel driving circuits are arranged on the substrate in the periphery of the display light transmission area and in the function additional area;
  • Transparent wiring arranged between the at least two insulating layers
  • a plurality of first display pixels arranged on a side of the insulating layer away from the substrate and located in the display light-transmitting area, the first display pixels including a first pixel anode;
  • the first pixel anode is electrically connected to at least a part of the first pixel driving circuit through the transparent wiring, so that the first pixel driving circuit drives the first display pixel to emit light.
  • the first pixel anode passes through the transparent path at least partly located in the display light-transmitting area and partly located at the periphery of the display light-transmitting area and in the function additional area.
  • the line is electrically connected to the first pixel driving circuit.
  • the first pixel anode passes through the transparent wiring at least partly located in the main display area and partly located at the periphery of the display light-transmitting area and in the function additional area It is electrically connected to the first pixel driving circuit.
  • the transparent wiring has at least two layers, each of the insulating layers is provided with a via hole, and the transparent wiring between two adjacent layers passes through the via hole. Sexual connection.
  • a layer of the transparent layer is passed between some of the first display pixels and the first pixel drive circuit among the plurality of first display pixels in the display light-transmitting area.
  • the wiring is electrically connected; a part of the first display pixels and the first pixel driving circuit among the plurality of first display pixels are electrically connected through another layer of the transparent wiring.
  • a part of the first display pixels of the plurality of the first display pixels in the display light-transmitting area are connected between the first display pixels and the first pixel driving circuit through multiple layers of the transparent
  • the wires are electrically connected, wherein the orthographic projections of the multilayer transparent wires on the substrate at least partially overlap.
  • a plurality of second display pixels are further provided on the side of the insulating layer away from the substrate and located in the main display area, and the second display pixels include a second pixel anode
  • a plurality of second pixel driving circuits are further provided on the substrate of the main display area to drive the second display pixels to emit light.
  • the distance between every two adjacent transparent traces disposed on the same layer is greater than 2um, and the line width of the transparent traces is greater than 1um.
  • a plurality of signal traces are further provided on the substrate at the periphery of the display light-transmitting area, and the plurality of signal traces and the plurality of first pixel driving circuits
  • the electrical connection is used to transmit a signal for driving the first display pixel to the anode of the first pixel.
  • the area of the first pixel driving circuit, the signal wiring, and the first pixel anode occupying less than or equal to 50% of the functional additional area;
  • the pixel anode occupies less than 50% of the area of the display light-transmitting area.
  • a plurality of the first pixel driving circuits are arranged in an array to form a pixel driving circuit island, and the first pixel anode is electrically connected to the pixel driving circuit island through the transparent wiring. connection.
  • the farthest distance between the first display pixel and the pixel driving circuit island is 300 ⁇ 5000 um.
  • the display panel further includes a conductive layer disposed between the at least two insulating layers, the conductive layer is located in the main display area, and the second display pixels pass through the The conductive layer is electrically connected to the second pixel driving circuit, so that the second pixel driving circuit drives the second display pixel to emit light.
  • An embodiment of the present invention provides a display device, which includes the above-mentioned display panel;
  • the photosensitive element, the photosensitive element is arranged on one side of the display panel and corresponding to the function additional area.
  • the beneficial effects of the present invention are: the display panel and the display device provided by the present invention are provided with a plurality of first pixel driving circuits at the periphery of the display light-transmitting area, and a multilayer transparent wire is provided to electrically connect the first pixel anode and the first pixel
  • the driving circuit enables the first pixel driving circuit to drive the first display pixel to emit light, which is beneficial to increase the wiring space and increase the light transmittance of the display light-transmitting area, thereby improving the photographing and display effects of the under-screen camera.
  • FIG. 1 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a plan structure of a function additional area provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the distribution of first pixel driving circuits in a function addition area provided by an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a transparent wiring arrangement of a display panel provided by an embodiment of the present invention.
  • 5A is a schematic cross-sectional structure diagram of a first display panel provided by an embodiment of the present invention.
  • 5B is a simplified schematic diagram of transparent wiring and wiring of the display panel in FIG. 5A;
  • 6A is a schematic diagram of a cross-sectional structure of a second display panel provided by an embodiment of the present invention.
  • FIG. 6B is a simplified schematic diagram of transparent wiring and wiring of the display panel in FIG. 6A;
  • FIG. 7A is a schematic cross-sectional structure diagram of a third display panel provided by an embodiment of the present invention.
  • FIG. 7B is a simplified schematic diagram of the transparent wiring and wiring of the display panel in FIG. 7A;
  • FIG. 8A is a schematic cross-sectional structure diagram of a fourth display panel provided by an embodiment of the present invention.
  • FIG. 8B is a simplified schematic diagram of the transparent wiring and wiring of the display panel in FIG. 8A;
  • FIG. 9A is a schematic cross-sectional structure diagram of a fifth display panel provided by an embodiment of the present invention.
  • FIG. 9B is a simplified schematic diagram of transparent wiring and wiring of the display panel in FIG. 9A;
  • FIG. 10A is a schematic cross-sectional structure diagram of a fifth display panel provided by an embodiment of the present invention.
  • FIG. 10B is a simplified schematic diagram of transparent wiring and wiring of the display panel in FIG. 10A;
  • FIG. 11 is a schematic structural diagram of a pixel driving circuit island provided by an embodiment of the present invention.
  • 12A-12B are schematic diagrams of the arrangement of the first driving circuit and signal wiring provided by an embodiment of the present invention.
  • FIGS. 13A-13B are schematic diagrams of the arrangement of a second type of driving circuit and signal wiring provided by an embodiment of the present invention.
  • 14A-14B are schematic diagrams of the arrangement of a third driving circuit and signal wiring provided by an embodiment of the present invention.
  • the present invention addresses the technical problem that the display panel and the display device of the prior art have low light transmittance in the display light-transmitting area, so that the under-screen camera has a poor photographing effect.
  • This embodiment can solve the problem.
  • a display panel 100 provided by an embodiment of the present invention is an active matrix organic light emitting diode display panel.
  • the display panel 100 includes a main display area 100a and at least one additional function area 100b, wherein the main display area 100a is an area mainly used to display images; the function additional area 100b is used to place photosensitive elements, the function additional area 100b has at least one display light transmission area 100c, and the display light transmission area 100c is used for displaying images
  • light can be transmitted so that the photosensitive element located on one side of the display panel 100 and corresponding to the display light-transmitting area 100c receives the light signal, wherein the photosensitive element may be a camera, an optical touch Components, fingerprint recognition sensor, etc., so that the display panel 100 can realize functions such as photographing function, optical touch function, and optical fingerprint recognition.
  • a plurality of the display light-transmitting areas 100c may be provided in the function additional area 100b, and the shape of the display light-transmitting area 100c may be a circle, a rectangle, a rounded rectangle or an irregular polygon.
  • the size of each of the display light-transmitting areas 100c is 0.36mm2-100mm2 to ensure that when the function additional 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 display panel 100 has one function addition area 100b, and the function addition area 100b has one display light-transmitting area 100c.
  • the pixel driving circuit of the display panel 100 includes a plurality of metal film layers, such as a polysilicon layer, a gate layer, a source and drain metal layer, etc., and the metal film layer has a light-shielding effect
  • the display panel 100 is provided with the pixel driver correspondingly
  • the area of the circuit is not light-transmissive, and multiple metal film layers reflect light, diffraction, and interference. Therefore, the pixel driving circuit is arranged on the periphery of the display light-transmitting area 100c, so that the display light-transmitting area 100c Since there is no pixel drive circuit inside, it has good light transmittance.
  • a plurality of the first pixel driving circuits 102 are provided on the periphery corresponding to the display light-transmitting area 100c, and the plurality of first pixel driving circuits 102 are located in the function additional area 100b;
  • a plurality of display pixels are arranged in the function additional area 100b, wherein a plurality of first display pixels 106 are arranged in the display light-transmitting area 100c, and each of the first display pixels 106 includes at least three sub-pixels, including one A first red sub-pixel, a first blue sub-pixel, and a first green sub-pixel, each of the first display pixels 106 may also include a first white sub-pixel, which constitutes the sub-pixels of the first display pixel 106 It may be any one of an organic light emitting diode, a micro light emitting diode or a quantum dot light emitting diode. Specifically, the sub-pixels constituting the first display pixel 106 are organic light emitting diodes.
  • the function additional area 100b is provided with a plurality of transparent wiring lines 105, and the first display pixel 106 is electrically connected to the first pixel driving circuit 102 through the transparent wiring lines 105.
  • the transparent wiring 105 includes at least two layers of the transparent wiring 105 in different layers. In the embodiment of the present invention, the transparent wiring 105 has three layers, and the transparent wiring 105 includes a first transparent wiring.
  • the distance between every two adjacent transparent traces 105 arranged on the same layer is greater than 2um to avoid a short circuit between two adjacent transparent traces 105 on the same layer; the lines of the transparent trace 105
  • the width is greater than 1 um to prevent the transparent wiring 105 from breaking due to too small line width.
  • the first display pixel 106 passes through the transparent wiring 105 at least partly located in the display light-transmitting area 100a, and partly located at the periphery of the display light-transmitting area 100a and in the function additional area 100b. It is electrically connected to the first pixel driving circuit 102, that is, the transparent wiring 105 is mainly provided in the display light-transmitting area 100c.
  • first display pixel 106 and the first pixel driving circuit 102 may be electrically connected through one layer of the transparent wiring 105, or may be electrically connected through multiple layers of the transparent wiring 105, The embodiments of the present invention will be explained from the above two aspects.
  • some of the first display pixels 106 and the first pixel driving circuit 102 among the plurality of first display pixels 106 may be electrically connected through a layer of the transparent wiring 105,
  • the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the first transparent wiring 1051.
  • the display panel 100 has a main display area 100a, a function additional area 100b, and a display light-transmitting area 100c located in the function additional area 100b; the display panel 100 further includes a substrate 101, A plurality of first pixel driving circuits 102, at least three insulating layers 104, a pixel defining layer 108, a plurality of transparent wiring lines 105, a plurality of first display pixels 106, and a plurality of second display pixels 107.
  • a plurality of second display pixels 103 and a plurality of second pixel driving circuits 107 are further provided in the main display area 100b.
  • the second display pixels 107 include a second pixel anode 1071, and the second pixel drives The circuit 107 drives the second display pixel 103 to emit light.
  • the substrate 101 may include a transparent insulating substrate.
  • the substrate 101 may include any one of a glass substrate, a quartz substrate, and a transparent resin substrate, and the transparent resin substrate may include polyimide resin;
  • the first pixel driving circuit 102 is located at the periphery of the display light-transmitting area 100c and on the substrate 101 in the function additional area 100b, and a plurality of pixels are also provided on the substrate 101 of the main display area 100a.
  • the insulating layer 104 has four layers, specifically including a first insulating layer 1041, a second insulating layer 1042, a third insulating layer 1043, and a fourth insulating layer 1044; wherein, the first insulating layer 1041 covers the first pixel driving circuit 102 and the second pixel driving circuit 103, a first transparent wiring 1051 is provided on the first insulating layer 1041, and the first transparent wiring 1051 is at least partially located
  • the additional function area 100b is located in the display light-transmitting area 100c;
  • the second insulating layer 1042 covers the first insulating layer 1041 and the first transparent wiring 1051, and the second insulating layer 1041
  • a second transparent wiring 1052 is provided thereon, and the second transparent wiring 1052 is located in the display light-transmitting area 100c;
  • the third insulating layer 1043 covers the second insulating layer 1041 and the second transparent wiring 1052.
  • a third transparent wiring 1053 is provided on the third insulating layer 1043, and the third transparent wiring 1053 is located in the display light-transmitting area 100c; the fourth insulating layer 1044 covers the third insulating Layer 1043 and the third transparent wiring 1053; a plurality of the first pixel anodes 1061 are located on the fourth insulating layer 1044 of the display light-transmitting area 100c; a plurality of the second pixel anodes 1071, Located on the fourth insulating layer 1044 of the main display area 100a; wherein, the first pixel anode 1061 and the first pixel driving circuit 102 are electrically connected through the first transparent wiring 1051, Specifically, the first pixel anode 1061 and the first transparent wiring 1051 are sequentially connected to each other via the fourth insulating layer 1044, the third insulating layer 1043, and the second insulating layer 1042.
  • the first transparent wiring 1051 is connected to the first pixel driving circuit 102 through a via located on the first insulating layer
  • FIG. 5B is a simplified schematic diagram of the wiring of the transparent wiring in FIG. 5A, and the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the first transparent wiring 1051 .
  • some of the first display pixels 106 and the first pixel driving circuit 102 are electrically connected between the first display pixels 106 and the first pixel driving circuit 102 through another layer of the transparent wiring 105. Connected, the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the second transparent wiring 1052.
  • the difference between FIG. 6A and FIG. 5A is that the first transparent wiring 1051 is located in the display light-transmitting area 100c, and at least part of the second transparent wiring 1052 is located in the additional function. Area 100b, the other part is located in the display light-transmitting area 100c; the first pixel anode 1061 and the first pixel driving circuit 102 are electrically connected through the second transparent wiring 1052, specifically, the The first pixel anode 1061 and the second transparent wiring 1052 are connected through a via located on the fourth insulating layer 1044, and the second transparent wiring 1052 is connected to the first pixel driving circuit 102.
  • the connection between the two is realized through the via holes that are located on the third insulating layer 1043, the second insulating layer 1042, and the first insulating layer 1041 in order.
  • FIG. 6B is a simplified schematic diagram of the wiring of the transparent wiring in FIG. 6A, and the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the second transparent wiring 1052 .
  • some of the first display pixels 106 and the first pixel driving circuit 102 are electrically connected between the first display pixels 106 and the first pixel driving circuit 102 through another layer of the transparent wiring 105. Connected, the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the third transparent wiring 1053.
  • the difference between FIG. 7A and FIG. 5A is that the first transparent wiring 1051 is located in the display light-transmitting area 100c, and at least part of the third transparent wiring 1053 is located in the function additional Area 100b, the other part is located in the display light-transmitting area 100c; the first pixel anode 1061 and the first pixel driving circuit 102 are electrically connected through the third transparent wiring 1053, specifically, the The first pixel anode 1061 and the third transparent wiring 1053 are connected in turn through vias that communicate with each other on the fourth insulating layer 1044 and the third insulating layer 1043.
  • the third transparent wiring 1053 and The first pixel driving circuits 102 are connected to each other through vias located on the second insulating layer 1042 and the first insulating layer 1041 in order.
  • FIG. 7B is a simplified schematic diagram of the routing of the transparent wiring in FIG. 7A, and the first display pixel 106 and the first pixel driving circuit 102 are electrically connected through the third transparent wiring 1053 .
  • some of the first display pixels 106 and the first pixel driving circuit 102 in the plurality of first display pixels 106 pass through multiple layers of the transparent wiring.
  • 105 is electrically connected.
  • some of the first display pixels 106 and the first pixel driving circuit 102 are electrically connected through two layers of the transparent wiring 105.
  • the difference between FIG. 6A and FIG. 5A is that the first pixel anode 1061 and the first pixel driving circuit 102 sequentially pass through the second transparent wiring 1052 and the first transparent
  • the wiring 1051 is electrically connected.
  • the first pixel anode 1061 and the second transparent wiring 1052 are connected to each other through the fourth insulating layer 1044 and the third insulating layer 1043 in sequence.
  • the connection is realized by a via hole.
  • the second transparent wiring 1052 and the first transparent wiring 1051 are connected through a via on the second insulating layer 1042.
  • the first transparent wiring 1051 is connected to the first transparent wiring 1051.
  • the first pixel driving circuits 102 are connected to each other through vias located on the first insulating layer 1041.
  • the orthographic projections of the first transparent wiring 1051 and the second transparent wiring 1052 on the substrate 101 at least partially overlap.
  • the use of such a laminated wiring method is beneficial to increase the transparent wiring 105, thereby increasing the area of the display light-transmitting area 100c to increase its light transmittance.
  • FIG. 8B is a simplified schematic diagram of the routing of the transparent wiring in FIG. 8A.
  • the first display pixel 106 and the first pixel driving circuit 102 pass through the second transparent wiring 1052 and the first pixel driving circuit 102 in sequence.
  • the first transparent wiring 1051 is electrically connected.
  • first pixel anode 1061 and the first pixel driving circuit 102 may also be electrically connected through the third transparent wiring 1053 and the first transparent wiring 1051 in sequence, or, The first pixel anode 1061 and the first pixel driving circuit 102 are electrically connected to each other through the third transparent wiring 1053 and the second transparent wiring 1052 in turn, which will not be repeated here.
  • some of the first display pixels 106 and the first pixel driving circuit 102 are electrically connected to each other through three layers of the transparent wiring 105 .
  • the difference between FIG. 9A and FIG. 5A is that the first pixel anode 1061 and the first pixel driving circuit 102 pass through the third transparent wiring 1053, the second transparent The wiring 1052 and the first transparent wiring 1051 are electrically connected.
  • the first pixel anode 1061 and the third transparent wiring 1053 are realized by a via located in the fourth insulating layer 1044 Connection
  • the third transparent wiring 1053 and the second transparent wiring 1052 are connected through a via located on the third insulating layer 1043
  • the second transparent wiring 1052 is connected to the first transparent wiring 1052.
  • the transparent traces 1051 are connected through vias located on the second insulating layer 1042
  • the first transparent traces 1051 and the first pixel driving circuit 102 are connected through the vias located on the first insulating layer 1041. Vias make connections.
  • FIG. 9B is a simplified schematic diagram of the routing of the transparent wiring in FIG. 9A, the first display pixel 106 and the first pixel driving circuit 102 pass through the third transparent wiring 1053, and The second transparent wiring 1052 and the first transparent wiring 1051 are electrically connected.
  • the first pixel anode 1061 is electrically connected to the first pixel driving circuit 102 through the transparent wiring 105 that is at least partially located in the main display area 100a and partially located in the function additional area 100b.
  • the transparent wiring 105 can also be provided in the main display area 100a at the same time to electrically connect the first pixel driving circuit 102 and the first pixel anode 1061, which can further increase
  • the wiring space of the transparent wiring 105 avoids the problem of short circuit due to the narrow spacing between the adjacent transparent wirings 105 on the same layer.
  • a first transparent wiring 1051 is provided on the first insulating layer 1041, and the first transparent wiring 1051 is at least partially located in the function additional area 100b.
  • Another part extends from the function additional area 100b to the main display area 100a;
  • the second insulating layer 1042 covers the first insulating layer 1041 and the first transparent wiring 1051,
  • the layer 1042 is provided with a second transparent wiring 1052, the second transparent wiring 1052 is located in the main display area 100a;
  • the third insulating layer 1043 covers the second insulating layer 1042 and the second transparent wiring Line 1052, the third transparent wiring 1052 extends from the main display area 100a through the function additional area 100b to the display light-transmitting area 100c;
  • the fourth insulating layer 1044 covers the third insulating layer 1043 And the third transparent wiring 1053;
  • the first pixel anode 1061 and the first pixel driving circuit 102 pass through the third transparent wiring 1053, the second transparent wiring 10
  • first pixel anode 1061 of the first display pixel 106 close to the main display area 100a passes at least partly in the main display area 100a and partly in the display light-transmitting area 100c.
  • the transparent wiring 105 on the periphery and in the function additional area 100b is connected to the first pixel driving circuit 102; the first pixel of the first display pixel 106 that is far away from the main display area 100a
  • the anode 1061 is electrically connected to the first pixel driving circuit 102 through the transparent wiring 105 that is at least partially located in the display light-transmitting area 100c, and partially located outside the display light-transmitting area 100c and in the function additional area 100b. Connection to reduce the overall wiring space required by the transparent wiring 105 and further increase the number of the transparent wiring 105.
  • FIG. 10B is a simplified schematic diagram of the routing of the transparent wiring in FIG. 10A.
  • the first display pixel 106 and the first pixel driving circuit 102 pass through in turn and are located in the functional accessory area 100b.
  • the first transparent wiring 1051 of the additional area 100b is electrically connected.
  • the material of the insulating layer 104 may be a transparent organic material or an inorganic material, including any one of silicon dioxide, silicon nitride, polyimide or photoresist material; the transparent wiring 105
  • the material can be a transparent conductive material, including any one of indium oxide, indium zinc oxide or silver nanowires. Since the transparent wiring 105 has better light transmittance, its light transmittance can generally reach more than 90%. The loss of light passing through the transparent wiring 105 is reduced to increase the light transmittance of the display light-transmitting area 100c.
  • the display panel 100 further includes a conductive layer 109 disposed between the at least two insulating layers 104, and the conductive The layer 109 is located in the main display area 100a, and the second pixel anode 1071 of the second display pixel 107 is electrically connected to the second pixel driving circuit 103 through the conductive layer 109, so that the second The pixel driving circuit 103 drives the second display pixel 107 to emit light, which can enhance conductivity.
  • the wiring mode and material of the conductive layer 109, the electrical connection mode of the second pixel anode 1071 and the second pixel driving circuit 103 may be the same as the transparent wiring 105, and may be the same as the transparent wiring 105.
  • the transparent wiring 105 is made by the same manufacturing process, which is beneficial to save process steps and reduce production costs. For details, please refer to the above-mentioned embodiments, which will not be repeated here.
  • the transparent wiring 105 has three layers, but it should not be limited to this. In other embodiments, the transparent wiring 105 may be four, five, or even more layers. It is understandable Yes, the more layers of the transparent wiring 105, the larger the wiring space for the transparent wiring 105, which is beneficial to increase the number of the transparent wiring 105 to increase the area of the display light-transmitting area 100c However, due to the difficulty of the process and the excessive number of layers of the transparent wiring 105 will increase the risk of poor electrical contact between two adjacent layers of the transparent wiring 105, so the layer of the transparent wiring 105 The number should be determined according to the actual situation.
  • a plurality of the signal wirings are further provided on the substrate 101 within the function additional area 100b and located at the periphery of the display light-transmitting area 100c, and a plurality of the signal wirings and a plurality of The first pixel driving circuit 102 is electrically connected to transmit a signal for driving the first display pixel 106 to the first pixel anode 1061. Since the signal wiring also has a light-shielding effect, the signal The wiring is arranged on the periphery of the display light-transmitting area 100c, so that the signal wiring is not provided in the display light-transmitting area 100c, which further improves the light transmittance.
  • the area of the first pixel driving circuit 102, the signal wiring, and the first pixel anode 1061 occupying the function additional area 100b is less than or equal to 50%, and the plurality of first pixel anodes 1061 occupy The area of the display light transmission area 100c is less than 50% to ensure that the display light transmission area 100c has a sufficient light transmission area.
  • the size of the display light transmission area 100c is 600 ⁇ 10000um;
  • the size of each first pixel anode 1061 is smaller than the size of each second pixel anode 1071, so that the size of the sub-pixels of the first display pixel 106 is smaller than that of the sub-pixels of the second display pixel 107. Size, and enables the display light-transmitting area 100c to have a higher light transmittance.
  • the pixel density of the first display pixels 106 of the display light-transmitting area 100c may be less than the pixel density of the second display pixels 107 of the main display area 100a so that the light transmittance of the display light-transmitting area 100c Greater than the light transmittance of the main display area 100a; the size of the first display pixel 106 in the display light-transmitting area 100c may be smaller than the size of the second display pixel 107 in the main display area 100a to make The light transmittance of the display light-transmitting area 100c is greater than the light transmittance of the main display area 100a.
  • each pixel drive circuit island 10 includes a plurality of first pixel drive circuits 102.
  • each pixel drive circuit island 10 is a combination of multiple pixel drive circuits.
  • the first pixel driving circuit 102 is formed by clustering together in an island shape, and the clustering together is relatively dispersed compared to the pixel driving circuit. Specifically, the first display pixel 106 is separated from the pixel driving circuit. The longest distance of island 10 is 300 ⁇ 5000um.
  • an embodiment of the present invention provides a schematic structural diagram of a pixel drive circuit island 10, each of the pixel drive circuit islands 10 includes m ⁇ n first pixel drive circuits 102 arranged in an array, wherein , M represents the number of rows of the first pixel drive circuit 102, n represents the number of columns of the first pixel drive circuit 102, m and n are both positive integers, and at least one of m and n is greater than 1; where, The value range of m is greater than or equal to 3 and less than 128, and the value range of n is greater than 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.
  • a plurality of pixel driving circuit islands 10 and signal traces formed by gathering a plurality of the first pixel driving circuits 102 are arranged on the peripheral side of the display light-transmitting area 100c, wherein, The signal wiring is electrically connected to the first pixel driving circuit 102 to input various electrical signals to the pixel driving circuit island 10; the pixel driving circuit island 10 and the signal wiring are not provided in the display light-transmitting area 100c .
  • the arrangement of the first pixel driving circuit 102 needs to occupy a certain area, and by relatively gathering the first pixel driving circuits 102 to form the pixel driving circuit island 10, the area size of the display light-transmitting area 100c can be increased;
  • the first pixel driving circuit 102 and the signal wiring to drive the first display pixel 106 on the peripheral side of the display light-transmitting area 100c, it is ensured that the pixel driving circuit island 10 is not needed in the display light-transmitting area 100c, thereby preventing The first pixel driving circuit 102 and the signal wiring affect the display and light transmission of the display light-transmitting area 100c.
  • the first pixel driving circuit 102 may be used to drive a plurality of first display pixels 106 in the display light-transmitting area 100c to ensure that no pixel driving circuit is required in the display light-transmitting area 100c, so that the display
  • the light-transmitting area 100c has a high light transmittance; the first pixel driving circuit 102 can also be used to drive the first display pixels 106 in the function additional area 100b except for the display light-transmitting area 100c.
  • first pixel driving circuit 102 and the signal wiring can be arranged in the function additional area 100b, or can be arranged in the main display area 100a; the pixel driving circuit island 10 can be used in addition to the first pixel driving circuit island in the function additional area 100b.
  • the display pixels 106 are driven, and may also be responsible for driving part of the second display pixels 107 in the main display area 100a that are close to the function additional area 100b.
  • the signal wiring includes a plurality of first signal lines 31 and a plurality of second signal lines 32, and both the first signal line 31 and the second signal line 32 are electrically connected to the pixel driving circuit island 10 to provide information to the pixel driving circuit
  • the island 10 inputs various electrical signals; the pixel driving circuit island 10 is electrically connected to the first pixel anode 1061 through a transparent wire 105 to transmit electrical signals to the first pixel anode 1061.
  • the first signal line 31 may include at least one of a scan line, a light-emitting signal line for controlling the light emission of the organic light-emitting diode, and a reset line for controlling the anode reset of the organic light-emitting diode.
  • Each first signal line 31 includes a first straight section 311, a first circuitous section 313 and a first transition section 312.
  • the display panel 100 further includes a plurality of first sector regions 21 and a plurality of second sector regions 22.
  • the first sector regions 21 are regions defined by a plurality of first transition sections 312 arranged in a sector shape.
  • the second sector area 22 is an area defined by a plurality of second transition sections 322 arranged in a sector shape.
  • a plurality of first straight line sections 311 are horizontally arranged in parallel, a first transition section 312 is located in the first sector 21, and a plurality of first transition sections 312 are distributed in a sector in the first sector 21.
  • the first straight section 311 extends until the first sector 21 is electrically connected to the first transition section 312, so that the multiple first signal lines 31 integrate multiple groups of first signal lines 31, and the extension of the multiple groups of first signal lines 31 is changed
  • the path avoids the display light-transmitting area 100c.
  • the distance between two adjacent first transition sections 312 in the first sector 21 is smaller than the distance between two adjacent first straight sections 311.
  • the plurality of first transition sections 312 of the first sector 21 may be divided into at least two layers.
  • the first detour section 313 is electrically connected to all the pixel drive circuit islands 10 in the first group of pixel drive circuit islands 10 in turn.
  • the first detour section 313 may also be a straight line, an arc shape, or a plurality of broken line sections. .
  • the second signal line 32 may include a data line; each second signal line 32 includes a second straight section 321, a second circuitous section 323 and a second transition section 322.
  • the plurality of second straight line segments 321 of the plurality of second signal lines 32 are arranged vertically in parallel.
  • the vertical projections of the plurality of first straight line segments 311 of the plurality of first signal lines 31 on the display panel 100 and the vertical projections of the plurality of second straight line segments 321 of the plurality of second signal lines 32 on the display panel 100 perpendicularly intersect each other .
  • the second transition section 322 is located in the second sector area 22, and a plurality of second transition sections 322 are distributed in a sector shape in the second sector area 22.
  • the second straight section 421 extends to the second sector 22 and the second transition section 322 are electrically connected, so that the plurality of second signal lines 32 are integrated into the clusters of the second signal lines 32, and the clusters of the second signal lines 42 are changed.
  • the extension direction is to avoid the display light-transmitting area 100c.
  • the distance between two adjacent second transition sections 322 in the second sector 22 is smaller than the distance between two adjacent second straight sections 321.
  • the plurality of second straight sections 321 of the plurality of second signal lines 32 are divided into a plurality of clusters and respectively extend to the plurality of second sector regions 22 to be electrically connected to the plurality of second transition sections 322.
  • Each cluster of first straight line segments 311 extends into a second fan-shaped area 22 correspondingly.
  • the plurality of second transition sections 322 are divided into multiple clusters, and each cluster of the second transition sections 322 is located in the same second sector 22.
  • the plurality of second sector areas 22 are symmetrically arranged on opposite sides of the function additional area 12 and close to the first detour line.
  • the second winding sections 323 of the plurality of second signal lines 32 are arranged at the edge of the display light-transmitting area 100c.
  • the second transition section 322 and the second winding section 323 are electrically connected one-to-one.
  • the first detour section 313 and the second detour section 323 are located on different layers.
  • each cluster of second winding sections 323 are respectively electrically connected to a cluster of second transition sections 322, that is, the second winding sections 323 and second transition sections 322 are electrically connected.
  • the area surrounded by the plurality of first detour sections 313, the plurality of second detour sections 323, and at least part of the pixel drive circuit island 10 is the display light-transmitting area 100c.
  • the display light-transmitting area 100c corresponding to the edge of the first roundabout section 313 is convex or recessed at the edge of the first group of pixel driving circuit islands 10 to increase the light-transmitting area of the display light-transmitting area 100c in the function additional area 100b .
  • the display panel 100 further includes a plurality of connecting lines 40.
  • the connecting lines 40 and the second winding sections 323 are located on different layers, and each group of second winding sections 323 includes at least two clusters of second winding sections 323 with different lengths. Both ends of the second detour section 323 of each cluster are electrically connected to the two pixel drive circuit islands 10 in the first group of pixel drive circuit islands 10 which are mirrored to each other through the connecting line 40, so as to avoid the same group of adjacent two clusters.
  • the two detour sections 323 intersect and short-circuit during the extension process.
  • the structure of the display panel 100 shown in FIG. 13A is basically similar to that of the display panel 100 shown in FIG. 12A, except that the second circuitous section 323 of the second signal line 32 is arcuate. ⁇ Shaped arrangement.
  • the second detour section 323 of the second signal line 32 is arranged in a circular arc line.
  • the overall shape of the display light transmitting area 100c is circular;
  • the second detour section 323 of the second signal line 32 is The elliptical arc is set, at this time, it is shown that the overall shape of the light-transmitting area 100c is an ellipse.
  • the structure of the display panel 100 shown in FIG. 14A is basically similar to that of the display panel 100 shown in FIG. 12A, except that at least part of the second detour section 323 of the second signal line 32 It is arranged around the entire display light-transmitting area 100c.
  • Part of the pixel driving circuit islands 10 are uniformly arranged in a ring shape at the edge of the display light-transmitting area 100c.
  • the second winding sections 323 of the plurality of second signal lines 32 are arranged around the light-transmitting area 121 and are electrically connected to at least a part of the pixel driving circuit island 10 in sequence.
  • the first detour sections 313 of the plurality of first signal lines 31 are sequentially and electrically connected to any two adjacent pixel driving circuit islands 10 in the pixel driving circuit island 10.
  • the area occupied by the first pixel driving circuit 102 of the function additional area 100b is smaller than that of the The second pixel driving circuit 103 occupies the area of the function addition area 100b, thereby increasing the size of the display light-transmitting area 100c.
  • the device area of the first pixel drive circuit 102 is smaller than the device area of the second pixel drive circuit 103, and the device area is mainly determined by the number of devices and the device size.
  • the second pixel driving circuit 103 adopts a 7T1C circuit structure
  • the first pixel driving circuit 102 can adopt any one of 2T1C, 4T1C, and 6T1C circuit structures; further, the first pixel driving circuit 102
  • the device size of is smaller than the device size of the second pixel driving circuit 103.
  • the first pixel driving circuit 102 may also adopt a 7T1C circuit structure.
  • the wiring space of the first pixel driving circuit 102 is smaller than the wiring space of the second pixel driving circuit 103.
  • the first pixel driving circuit 102 adopts 2T1C, 4T1C, and 7T1C circuit structures, At least two of the first pixel drive circuits 102 share one signal trace and are arranged symmetrically along the signal trace.
  • the signal trace may be a power signal trace.
  • the wiring space is reduced compared to the wiring space of the second pixel driving circuit 103.
  • An embodiment of the present invention further provides a display device, the display device comprising the above-mentioned display panel 100 and a photosensitive element, the photosensitive element is disposed on one side of the display panel 100 and is disposed corresponding to the additional function area 100b, wherein:
  • the photosensitive element can be a camera and an optical touch component.
  • the display panel and the display device provided by the embodiments of the present invention are provided with a plurality of first pixel driving circuits on the periphery of the display light-transmitting area, and a multilayer transparent wire is provided to electrically connect the first pixel anode and the first pixel driver.
  • the circuit enables the first pixel driving circuit to drive the first display pixel to emit light, which is beneficial to increase the wiring space and improve the light transmittance of the display light-transmitting area, thereby improving the photographing and display effects of the under-screen camera.

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Abstract

本发明提供一种显示面板及显示装置，显示面板具有主显示区以及至少一功能附加区，功能附加区中具有至少一显示透光区，在显示透光区外围设置多个第一像素驱动电路，并设置多层透明导线电性连接第一像素阳极和第一像素驱动电路以驱动第一显示像素发光，有利于增加布线空间，提高透光率，提升屏下摄像头的拍照和显示效果。

Description

显示面板及显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及显示装置。
 背景技术
全面屏由于极高的屏占比，给人们带来全新的视觉体验和感官冲击，成为显示面板厂商竞相追求的目标。
全面屏由于极高的屏占比，给人们带来全新的视觉体验和感官冲击，目前屏下摄像头常用设计是对显示面板摄像头区域进行挖孔处理，摄像头透光区域不显示画面，这种方式面板穿透率会比较高，但用户显示体验不好，无法呈现全屏的效果；而另一种方式是显示面板上设置显示透光区，并在显示面板的显示透光区对应的位置设置屏下摄像头，提高了用户体验，然而，采用此种方式，显示面板的显示透光区的透光率较低，以至于屏下摄像头的拍照效果较差。
综上所述，需要提供一种新的显示面板及显示装置，来解决上述技术问题。
 技术问题
本发明提供一种显示面板及显示装置，解决了现有的显示面板的显示透光区的透光率较低，以至于屏下摄像头的拍照效果较差技术问题。
 技术解决方案
为解决上述问题，本发明提供的技术方案如下：
本发明实施例提供一种显示面板，所述显示面板具有主显示区以及至少一功能附加区，所述功能附加区中具有至少一显示透光区，所述显示透光区的尺寸为600~10000um，所述显示面板包括：
基板，在所述显示透光区的外围且在所述功能附加区内的所述基板上设置有多个第一像素驱动电路；
至少两绝缘层，覆盖多个所述第一像素驱动电路；
透明走线，设置于所述至少两绝缘层之间；以及
多个第一显示像素，设置于所述绝缘层远离所述基板的一侧且位于所述显示透光区内，所述第一显示像素包括第一像素阳极；
其中，所述第一像素阳极通过所述透明走线与至少部分所述第一像素驱动电路电性连接，以使所述第一像素驱动电路驱动所述第一显示像素发光。
根据本发明实施例提供的显示面板，所述第一像素阳极通过至少部分位于所述显示透光区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
根据本发明实施例提供的显示面板，所述第一像素阳极通过至少部分位于所述主显示区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
根据本发明实施例提供的显示面板，所述透明走线为至少两层，每一所述绝缘层内均设置有过孔，相邻两层所述透明走线之间通过所述过孔电性连接。
根据本发明实施例提供的显示面板，所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过一层所述透明走线电性连接；多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过另一层所述透明走线电性连接。
根据本发明实施例提供的显示面板，所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过多层所述透明走线电性连接，其中，多层所述透明走线在所述基板上的正投影至少部分重合。
本发明实施例提供一种显示面板，所述显示面板具有主显示区以及至少一功能附加区，所述功能附加区中具有至少一显示透光区，所述显示面板包括：
基板，在所述显示透光区的外围且在所述功能附加区内的所述基板上设置有多个第一像素驱动电路；
至少两绝缘层，覆盖多个所述第一像素驱动电路；
透明走线，设置于所述至少两绝缘层之间；以及
多个第一显示像素，设置于所述绝缘层远离所述基板的一侧且位于所述显示透光区内，所述第一显示像素包括第一像素阳极；
其中，所述第一像素阳极通过所述透明走线与至少部分所述第一像素驱动电路电性连接，以使所述第一像素驱动电路驱动所述第一显示像素发光。
根据本发明实施例提供的显示面板，所述第一像素阳极通过至少部分位于所述显示透光区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
根据本发明实施例提供的显示面板，所述第一像素阳极通过至少部分位于所述主显示区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
根据本发明实施例提供的显示面板，所述透明走线为至少两层，每一所述绝缘层内均设置有过孔，相邻两层所述透明走线之间通过所述过孔电性连接。
根据本发明实施例提供的显示面板，所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过一层所述透明走线电性连接；多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过另一层所述透明走线电性连接。
根据本发明实施例提供的显示面板，所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过多层所述透明走线电性连接，其中，多层所述透明走线在所述基板上的正投影至少部分重合。
根据本发明实施例提供的显示面板，所述绝缘层远离所述基板的一侧且位于所述主显示区内还设置有多个第二显示像素，所述第二显示像素包括第二像素阳极，在所述主显示区的所述基板上还设置有多个第二像素驱动电路，以驱动所述第二显示像素发光。
根据本发明实施例提供的显示面板，设置于相同层的每相邻两条所述透明走线之间的距离大于2um，且所述透明走线的线宽大于1um。
根据本发明实施例提供的显示面板，在所述显示透光区的外围的所述基板上还设置有多条信号走线，多条所述信号走线与多个所述第一像素驱动电路电性连接，用于传输驱动所述第一显示像素的信号至所述第一像素阳极。
根据本发明实施例提供的显示面板，所述第一像素驱动电路、所述信号走线以及所述第一像素阳极占所述功能附加区的面积小于或等于50%；多个所述第一像素阳极占所述显示透光区的面积小于50%。
根据本发明实施例提供的显示面板，多个所述第一像素驱动电路呈阵列排布形成像素驱动电路岛，所述第一像素阳极通过所述透明走线与所述像素驱动电路岛电性连接。
根据本发明实施例提供的显示面板，所述第一显示像素距所述像素驱动电路岛的最远距离为300~5000um。
根据本发明实施例提供的显示面板，所述显示面板还包括设置于所述至少两绝缘层之间的导电层，所述导电层位于所述主显示区，所述第二显示像素通过所述导电层与所述第二像素驱动电路电性连接，以使所述第二像素驱动电路驱动所述第二显示像素发光。
本发明实施例提供一种显示装置，所述显示装置包括上述显示面板；以及
感光元件，所述感光元件设置于所述显示面板的一侧且对应所述功能附加区设置。
 有益效果
本发明的有益效果为：本发明提供的显示面板及显示装置，通过在显示透光区外围设置多个第一像素驱动电路，并设置多层透明导线电性连接第一像素阳极和第一像素驱动电路以使第一像素驱动电路驱动第一显示像素发光，有利于增加布线空间，提高了显示透光区的透光率，从而提升了屏下摄像头的拍照和显示效果。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种显示面板的平面结构示意图；
图2为本发明实施例提供的一种功能附加区的平面结构示意图；
图3为本发明实施例提供的一种功能附加区中的第一像素驱动电路分布示意图；
图4为本发明实施例提供的一种显示面板的透明走线排布示意图；
图5A为本发明实施例提供的第一种显示面板的截面结构示意图；
图5B为图5A中显示面板的透明走线布线简化示意图；
图6A为本发明实施例提供的第二种显示面板的截面结构示意图；
图6B为图6A中显示面板的透明走线布线简化示意图；
图7A为本发明实施例提供的第三种显示面板的截面结构示意图；
图7B为图7A中显示面板的透明走线布线简化示意图；
图8A为本发明实施例提供的第四种显示面板的截面结构示意图；
图8B为图8A中显示面板的透明走线布线简化示意图；
图9A为本发明实施例提供的第五种显示面板的截面结构示意图；
图9B为图9A中显示面板的透明走线布线简化示意图；
图10A为本发明实施例提供的第五种显示面板的截面结构示意图；
图10B为图10A中显示面板的透明走线布线简化示意图；
图11为本发明实施例提供的一种像素驱动电路岛的结构示意图；
图12A-12B为本发明实施例提供的第一种驱动电路和信号走线的排布示意图；
图13A-13B为本发明实施例提供的第二种驱动电路和信号走线的排布示意图；
图14A-14B为本发明实施例提供的第三种驱动电路和信号走线的排布示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有技术的显示面板及显示装置，显示透光区的透光率较低，以至于屏下摄像头的拍照效果较差的技术问题，本实施例能够解决该缺陷。
如图1所示，本发明实施例提供的显示面板100为主动矩阵式有机发光二极管显示面板，所述显示面板100包括主显示区100a以及至少一功能附加区100b，其中，所述主显示区100a为主要用于显示图像的区域；所述功能附加区100b用于放置感光元件，所述功能附加区100b中具有至少一显示透光区100c，所述显示透光区100c用于显示图像的同时，可以透过光线以使位于所述显示面板100的一侧且对应所述显示透光区100c设置的所述感光元件接收到光信号，其中，所述感光元件可为摄像头、光学触控组件以及指纹识别传感器等，以使所述显示面板100能够实现例如拍照功能、光学触控功能以及光学指纹识别等功能。
如图2所示，所述功能附加区100b中可以设置多个所述显示透光区100c，所述显示透光区100c的形状可以是圆形、矩形、圆角矩形或不规则多边形，每个所述显示透光区100c的尺寸为0.36mm2-100mm2，以保证所述显示面板100的所述功能附加区100b对应设置摄像头时，摄像头能具有良好的拍照效果，并降低工艺难度。
需要说明的是，为了便于说明本发明实施例的技术方案，本发明实施例以所述显示面板100具有一个所述功能附加区100b，所述功能附加区100b具有一个所述显示透光区100c进行阐述说明。
由于所述显示面板100的像素驱动电路包括多个金属膜层，例如多晶硅层、栅极层以及源漏极金属层等，而金属膜层具有遮光作用，故显示面板100对应设置所述像素驱动电路的区域不具有透光性，而且多个金属膜层对光线存在反射、衍射和干涉等现象，因此将像素驱动电路设置于所述显示透光区100c外围，使得所述显示透光区100c内由于未设置有像素驱动电路而具有良好的透光性。
如图3所示，在对应所述显示透光区100c的外围设置有多个所述第一像素驱动电路102，且多个所述第一像素驱动电路102位于所述功能附加区100b内；在所述功能附加区100b设置有多个显示像素，其中在所述显示透光区100c设置有多个第一显示像素106，每个所述第一显示像素106包括至少三个子像素，包括一个第一红色子像素、一个第一蓝色子像素以及一个第一绿色子像素，每个所述第一显示像素106还可以包括第一白色子像素，组成所述第一显示像素106的子像素可以是有机发光二极管、微型发光二极管或者量子点发光二极管中的任意一种，具体地，组成所述第一显示像素106的子像素为有机发光二极管。
如图4所示，所述功能附加区100b设置有多条透明走线105，所述第一显示像素106通过所述透明走线105与所述第一像素驱动电路102电性连接，多条所述透明走线105包括位于不同层的至少两层所述透明走线105，在本发明实施例中，所述透明走线105为三层，所述透明走线105包括第一透明走线1051、第二透明走线1052以及第三透明走线1053，所述第一透明走线1051、所述第二透明走线1052以及所述第三透明走线1053分别位于不同层；具体地，设置于相同层的每相邻两条所述透明走线105之间的距离大于2um，以避免同一层相邻两条所述透明走线105之间发生短路；所述透明走线105的线宽大于1um，以避免所述透明走线105由于线宽过小而发生断路。
在一实施方式中，所述第一显示像素106通过至少部分位于所述显示透光区100a，以及部分位于所述显示透光区100a外围且在功能附加区100b内的所述透明走线105与所述第一像素驱动电路102电性连接，也就是说，主要在所述显示透光区100c设置所述透明走线105。
进一步地，所述第一显示像素106和所述第一像素驱动电路102之间可以通过一层所述透明走线105电性连接，也可以通过多层所述透明走线105电性连接，本发明实施例将从以上两个方面进行解释说明。
在一实施方式中，多个所述第一显示像素106中的部分所述第一显示像素106与所述第一像素驱动电路102之间可以通过一层所述透明走线105电性连接，例如，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第一透明走线1051电性连接。
具体地，结合图5A所示，所述显示面板100具有主显示区100a、功能附加区100b以及位于所述功能附加区100b内的显示透光区100c；所述显示面板100还包括基板101、多个第一像素驱动电路102、至少三层绝缘层104、像素定义层108、多条透明走线105、多个第一显示像素106以及多个第二显示像素107。
进一步地，在所述主显示区100b还设置有多个第二显示像素103以及多个第二像素驱动电路107，所述第二显示像素107包括第二像素阳极1071，所述第二像素驱动电路107驱动所述第二显示像素103发光。
其中，所述基板101可包括透明绝缘基板，例如所述基板101可包括玻璃基板、石英基板、透明树脂基板中的任意一种，透明树脂基板可包括聚酰亚胺类树脂；多个所述第一像素驱动电路102位于所述显示透光区100c的外围且在所述功能附加区100b内的所述基板101上，在所述主显示区100a的所述基板101上还设置有多个所述第二像素驱动电路102；至少两所述绝缘层104覆盖多个所述第一像素驱动电路102以及多个所述第二像素驱动电路103；所述透明走线105设置于所述至少两绝缘层104之间；所述绝缘层104远离所述基板101的一侧且位于所述显示透光区100c内设置有多个第一显示像素106，每个所述第一显示像素106包括第一像素阳极1061；所述绝缘层104远离所述基板101的一侧且位于所述主显示区100a内设置有多个第二显示像素107，每个所述第二显示像素107包括第二像素阳极1071，每个组成所述第二显示像素107的子像素下方均对应设置一个所述第二像素驱动电路103；所述像素定义层108覆盖所述第一像素阳极1061、所述第二像素阳极1071以及所述绝缘层104。
在本发明实施例中，所述绝缘层104为四层，具体包括第一绝缘层1041、第二绝缘层1042、第三绝缘层1043以及第四绝缘层1044；其中，所述第一绝缘层1041覆盖所述第一像素驱动电路102和所述第二像素驱动电路103，在所述第一绝缘层1041上设置有第一透明走线1051，所述第一透明走线1051至少部分位于所述功能附加区100b，另一部分位于所述显示透光区100c；所述第二绝缘层1042覆盖所述第一绝缘层1041以及所述第一透明走线1051，在所述第二绝缘层1041上设置有第二透明走线1052，所述第二透明走线1052位于所述显示透光区100c；所述第三绝缘层1043覆盖所述第二绝缘层1041以及所述第二透明走线1052，在所述第三绝缘层1043上设置有第三透明走线1053，所述第三透明走线1053位于所述显示透光区100c；所述第四绝缘层1044覆盖所述第三绝缘层1043以及所述第三透明走线1053；多个所述第一像素阳极1061，位于所述显示透光区100c的所述第四绝缘层1044上；多个所述第二像素阳极1071，位于所述主显示区100a的所述第四绝缘层1044上；其中，所述第一像素阳极1061与所述第一像素驱动电路102之间通过所述第一透明走线1051电性连接，具体地，所述第一像素阳极1061和所述第一透明走线1051之间依次通过位于所述第四绝缘层1044、所述第三绝缘层1043以及所述第二绝缘层1042上相互连通的过孔实现连接，所述第一透明走线1051与所述第一像素驱动电路102之间通过位于所述第一绝缘层1041上的过孔实现连接。
如图5B所示为图5A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第一透明走线1051电性连接。
再如，继续参考图4，多个所述第一显示像素106中的部分所述第一显示像素106和所述第一像素驱动电路102之间通过另一层所述透明走线105电性连接，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第二透明走线1052电性连接。
具体地，结合图6A所示，图6A与图5A的区别在于，所述第一透明走线1051位于所述显示透光区100c，至少部分所述第二透明走线1052位于所述功能附加区100b，另一部分位于所述显示透光区100c；所述第一像素阳极1061与所述第一像素驱动电路102之间通过所述第二透明走线1052电性连接，具体地，所述第一像素阳极1061和所述第二透明走线1052之间通过位于所述第四绝缘层1044上的过孔实现连接，所述第二透明走线1052与所述第一像素驱动电路102之间依次通过位于所述第三绝缘层1043、所述第二绝缘层1042以及所述第一绝缘层1041上相互连通的过孔实现连接。
如图6B所示为图6A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第二透明走线1052电性连接。
又如，继续参考图4，多个所述第一显示像素106中的部分所述第一显示像素106和所述第一像素驱动电路102之间通过另一层所述透明走线105电性连接，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第三透明走线1053电性连接。
具体地，结合图7A所示，图7A与图5A的区别在于，所述第一透明走线1051位于所述显示透光区100c，至少部分所述第三透明走线1053位于所述功能附加区100b，另一部分位于所述显示透光区100c；所述第一像素阳极1061与所述第一像素驱动电路102之间通过所述第三透明走线1053电性连接，具体地，所述第一像素阳极1061和所述第三透明走线1053之间依次通过位于所述第四绝缘层1044以及第三绝缘层1043上相互连通的过孔实现连接，所述第三透明走线1053与所述第一像素驱动电路102之间依次通过位于所述第二绝缘层1042以及第一绝缘层1041上相互连通的过孔实现连接。
如图7B所示为图7A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间通过所述第三透明走线1053电性连接。
在一实施方式中，如图4所示，多个所述第一显示像素106中的部分所述第一显示像素106和所述第一像素驱动电路102之间通过多层所述透明走线105电性连接，例如，多个所述第一显示像素106中的部分所述第一显示像素106和所述第一像素驱动电路102之间通过两层所述透明走线105电性连接。
具体地，结合图8A所示，图6A与图5A的区别在于，所述第一像素阳极1061与所述第一像素驱动电路102依次通过所述第二透明走线1052和所述第一透明走线1051电性连接，具体地，所述第一像素阳极1061与所述第二透明走线1052之间依次通过位于所述第四绝缘层1044以及所述第三绝缘层1043上相互连通的过孔实现连接，所述第二透明走线1052与所述第一透明走线1051之间通过位于所述第二绝缘层1042上的过孔实现连接，所述第一透明走线1051与所述第一像素驱动电路102之间通过位于所述第一绝缘层1041上的过孔实现连接。
进一步地，所述第一透明走线1051和所述第二透明走线1052在所述基板101上的正投影至少部分重合，采用此种叠层布线的方式，有利于增加所述透明走线105的数量，从而增大所述显示透光区100c的面积，以提高其透光率。
如图8B所示为图8A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间依次通过所述第二透明走线1052和所述第一透明走线1051电性连接。
需要说明的是，所述第一像素阳极1061与所述第一像素驱动电路102之间也可以依次通过所述第三透明走线1053和所述第一透明走线1051电性连接，或者，所述第一像素阳极1061与所述第一像素驱动电路102之间依次通过所述第三透明走线1053和所述第二透明走线1052电性连接，在此不再赘述。
再如，继续参考图4，多个所述第一显示像素106中的部分所述第一显示像素106和所述第一像素驱动电路102之间通过三层所述透明走线105电性连接。
具体地，结合图9A所示，图9A与图5A的区别在于，所述第一像素阳极1061与所述第一像素驱动电路102依次通过所述第三透明走线1053、所述第二透明走线1052以及所述第一透明走线1051电性连接，具体地，所述第一像素阳极1061与所述第三透明走线1053之间通过位于所述第四绝缘层1044的过孔实现连接，所述第三透明走线1053与所述第二透明走线1052之间通过位于所述第三绝缘层1043上的过孔实现连接，所述第二透明走线1052与所述第一透明走线1051之间通过位于所述第二绝缘层1042上的过孔实现连接，所述第一透明走线1051与所述第一像素驱动电路102通过位于所述第一绝缘层1041上的过孔实现连接。
如图9B所示为图9A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间依次通过所述第三透明走线1053、所述第二透明走线1052以及所述第一透明走线1051电性连接。
在一实施方式中，所述第一像素阳极1061通过至少部分位于所述主显示区100a，以及部分位于所述功能附加区100b的所述透明走线105与所述第一像素驱动电路102电性连接，也就是说，也可以同时在所述主显示区100a设置所述透明走线105，以电性连接所述第一像素驱动电路102和所述第一像素阳极1061，可进一步地增加所述透明走线105的布线空间，避免出现位于同一层且相邻的所述透明走线105之间的间距较窄而出现短路的问题。
如图10A所示，图10A与图5A的区别在于，在所述第一绝缘层1041上设置有第一透明走线1051，所述第一透明走线1051至少部分位于所述功能附加区100b，另一部分从所述功能附加区100b延伸至所述主显示区100a；所述第二绝缘层1042覆盖所述第一绝缘层1041以及所述第一透明走线1051，在所述第二绝缘层1042上设置有第二透明走线1052，所述第二透明走线1052位于所述主显示区100a；所述第三绝缘层1043覆盖所述第二绝缘层1042以及所述第二透明走线1052，所述第三透明走线1052从所述主显示区100a经过所述功能附加区100b延伸至所述显示透光区100c；所述第四绝缘层1044覆盖所述第三绝缘层1043以及所述第三透明走线1053；所述第一像素阳极1061与所述第一像素驱动电路102之间依次通过所述第三透明走线1053、所述第二透明走线1052以及所述第一透明走线1051电性连接。
可以理解的是，靠近所述主显示区100a的部分所述第一显示像素106的所述第一像素阳极1061通过至少部分位于所述主显示区100a，以及部分位于所述显示透光区100c外围且在所述功能附加区100b内的所述透明走线105与所述第一像素驱动电路102连接；远离所述主显示区100a的部分所述第一显示像素106的所述第一像素阳极1061通过至少部分位于所述显示透光区100c，以及部分位于所述显示透光区100c外围且在功能附加区100b内的所述透明走线105与所述第一像素驱动电路102电性连接，以减少所述透明走线105需要的整体布线空间，且可进一步增加所述透明走线105的数量。
如图10B所示为图10A中的所述透明走线的布线简化示意图，所述第一显示像素106与所述第一像素驱动电路102之间通过依次通过位于部分位于所述功能附件区100b，部分位于所述主显示区100a的所述第三透明走线1053、位于所述主显示区100a的所述第二透明走线1052以及部分位于所述主显示区100a，部分位于所述功能附加区100b的所述第一透明走线1051电性连接。
具体地，所述绝缘层104的材料为可以为透明有机材料或无机材料，包括二氧化硅、氮化硅、聚酰亚胺或光阻材料中的任意一种；所述透明走线105的材料可以为透明导体材料，包括氧化铟、氧化铟锌或银纳米线的任意一种，由于所述透明走线105的透光性能较好，其透光率一般可达到90%以上，故可减少透过所述透明走线105的光线损失，以提高所述显示透光区100c的透光率。
进一步地，参考图5A、图6A、图7A、图8A、图9A、图10A所示，所述显示面板100还包括设置于所述至少两绝缘层104之间的导电层109，所述导电层109位于所述主显示区100a，所述第二显示像素107的所述第二像素阳极1071通过所述导电层109与所述第二像素驱动电路103电性连接，以使所述第二像素驱动电路103驱动所述第二显示像素107发光，能够增强导电性。需要说明的是，所述导电层109的布线方式和材料、所述第二像素阳极1071和所述第二像素驱动电路103电性连接方式可以与所述透明走线105相同，且与所述透明走线105采用同一制程制得，有利于节省工艺步骤，降低生产成本，具体可参照上述实施方式，在此不再赘述。
本发明实施例中的所述透明走线105为三层，但不应局限于此，在其他实施例中，所述透明走线105可以为四层、五层甚至更多层，可以理解的是，所述透明走线105的层数越多，用于所述透明走线105的布线空间越大，有利于增加所述透明走线105的数量以增加所述显示透光区100c的面积；然而由于工艺制程难度，且所述透明走线105层数过多则会增加出现相邻两层所述透明走线105之间电性接触不良的风险，故所述透明走线105的层数应根据实际情况而定。
进一步地，在所述功能附加区100b之内且位于所述显示透光区100c的外围的所述基板101上还设置有多条所述信号走线，多条所述信号走线与多个所述第一像素驱动电路102电性连接，用于传输驱动所述第一显示像素106的信号至所述第一像素阳极1061，由于所述信号走线也具有遮光作用，故将所述信号走线设置于所述显示透光区100c外围，使得所述显示透光区100c内由于未设置有所述信号走线而进一步提升其透光性。
具体地，所述第一像素驱动电路102、所述信号走线以及所述第一像素阳极1061占所述功能附加区100b的面积小于或等于50%，多个所述第一像素阳极1061占所述显示透光区100c的面积小于50%，以保证所述显示透光区100c具有足够的透光面积，在本发明实施例中，所述显示透光区100c的尺寸为600~10000um；每个所述第一像素阳极1061的尺寸小于每个所述第二像素阳极1071的尺寸，以使得所述第一显示像素106的子像素的尺寸小于所述第二显示像素107的子像素的尺寸，且使得所述显示透光区100c具有更高的透光率。
所述显示透光区100c的所述第一显示像素106的像素密度可以小于所述主显示区100a的所述第二显示像素107的像素密度以使所述显示透光区100c的透光率大于所述主显示区100a的透光率；所述显示透光区100c的所述第一显示像素106的尺寸可以小于所述主显示区100a中的所述第二显示像素107的尺寸以使所述显示透光区100c的透光率大于所述主显示区100a的透光率。
进一步地，如图3、图4所示，多个所述第一像素驱动电路102呈阵列排布可形成像素驱动电路岛10，所述第一像素阳极1061之间通过所述透明走线105与所述像素驱动电路岛10电性连接，每个所述像素驱动电路岛10包括多个第一像素驱动电路102，可以理解的是，每个所述像素驱动电路岛10是将多个所述第一像素驱动电路102呈岛状集中聚集在一起而形成，而集中聚集在一起是相对于像素驱动电路较分散而言的，具体地，所述第一显示像素106距所述像素驱动电路岛10的最远距离为300~5000um。
如图11所示本发明实施例提供的一种像素驱动电路岛10的结构示意图，每个所述像素驱动电路岛10包括m×n个阵列排布的所述第一像素驱动电路102，其中，m表示所述第一像素驱动电路102的行数，n表示所述第一像素驱动电路102的列数，m和n均为正整数，m和n中至少之一为大于1；其中，m的取值范围为大于或等于3且小于128，n的取值范围为大于或等于1且小于128。进一步地，m的取值范围为大于或等于3且小于64，n的取值范围为大于或等于1且小于64。
如图12A、图12B所示，所述显示透光区100c的周侧设置有由多个所述第一像素驱动电路102聚集而形成的多个像素驱动电路岛10和信号走线，其中，所述信号走线与所述第一像素驱动电路102电性连接，以向像素驱动电路岛10输入各种电信号；所述显示透光区100c中未设置像素驱动电路岛10和信号走线。
需要说明的是，所述第一像素驱动电路102的设置需要占据一定的区域面积，通过将第一像素驱动电路102相对聚集形成像素驱动电路岛10，可以增加显示透光区100c的面积尺寸；而通过将驱动第一显示像素106的第一像素驱动电路102和信号走线设置在显示透光区100c的周侧，以保证显示透光区100c中不需要设置像素驱动电路岛10，从而防止第一像素驱动电路102和信号走线对显示透光区100c的显示和透光造成影响。
需要说明的是，所述第一像素驱动电路102可以用于驱动显示透光区100c中的多个第一显示像素106，以保证显示透光区100c中不需要设置像素驱动电路，从而使得显示透光区100c具有高透光率；第一像素驱动电路102还可以用于驱动功能附加区100b中除显示透光区100c外其他区域中的第一显示像素106。
需要说明的是，第一像素驱动电路102和信号走线可以设置于功能附加区100b中，也可以设置于主显示区100a中；像素驱动电路岛10除了可以对功能附加区100b中的第一显示像素106进行驱动，也可以负责对主显示区100a中的靠近功能附加区100b的部分第二显示像素107进行驱动。
具体的，信号走线包括多个第一信号线31和多个第二信号线32，第一信号线31和第二信号线32均与像素驱动电路岛10电性连接，以向像素驱动电路岛10输入各种电信号；像素驱动电路岛10通过透明导线105与第一像素阳极1061电性连接，以将电信号传输给第一像素阳极1061。
其中，第一信号线31可以包括扫描线、控制有机发光二极管发光的发光信号线、控制有机发光二极管的阳极复位的复位线中的至少一种。每个第一信号线31包括第一直线段311、第一迂回段313以及第一过渡段312。
具体的，所述显示面板100还包括多个第一扇形区21和多个第二扇形区22，所述第一扇形区21是由多个第一过渡段312呈扇形排布定义出的区域，所述第二扇形区22是由多个第二过渡段322呈扇形排布定义出的区域。
其中，多个第一直线段311水平平行设置，第一过渡段312位于第一扇形区21，多个第一过渡段312在第一扇形区21呈扇形分布。第一直线段311延伸至第一扇形区21与第一过渡段312电性连接，以使多个第一信号线31集成多组第一信号线31，改变多组第一信号线31的延伸路径以避开显示透光区100c。第一扇形区21中相邻两个第一过渡段312之间的间距小于相邻两个第一直线段311之间的间距。为了避免相邻两个第一过渡段312之间间距较小而出现短路，可以使得第一扇形区21的多个第一过渡段312分成至少两层设置。
其中，第一迂回段313依次电性连接第一组像素驱动电路岛10中的所有像素驱动电路岛10，第一迂回段313也可以是直线，也可以是弧形，或者包括多个折线段。
具体的，第二信号线32可以包括数据线；每个第二信号线32包括第二直线段321、第二迂回段323以及第二过渡段322。
其中，多个第二信号线32的多个第二直线段321竖直平行设置。多个第一信号线31的多个第一直线段311在显示面板100上的垂直投影与多个第二信号线32的多个第二直线段321在显示面板100上的垂直投影互相垂直相交。第二过渡段322位于第二扇形区22，多个第二过渡段322在第二扇形区22呈扇形分布。第二直线段421延伸至第二扇形区22与第二过渡段322电性连接连接，以使多个第二信号线32集成多簇第二信号线32，改变多簇第二信号线42的延伸方向以避开显示透光区100c。第二扇形区22中相邻两个第二过渡段322之间的间距小于相邻两个第二直线段321之间的间距。
多个第二信号线32的多个第二直线段321分成多簇分别延伸至多个第二扇形区22以与多个第二过渡段322电性连接。每簇第一直线段311对应延伸至一个第二扇形区22中。多个第二过渡段322分为多簇，每簇第二过渡段322位于同一个第二扇形区22中。多个第二扇形区22对称设置于功能附加区12相对两侧且靠近第一迂回线设置。多个第二信号线32的第二迂回段323设置于显示透光区100c的边缘。第二过渡段322与第二迂回段323一对一地电性连接。第一迂回段313与第二迂回段323位于不同层。
其中，每簇第二迂回段323的两端分别与一簇第二过渡段322电性连接，即第二迂回段323与第二过渡段322电性连接。
需要说明的是，多个第一迂回段313、多个第二迂回段323以及至少部分像素驱动电路岛10围合成的区域即为显示透光区100c。
进一步地，显示透光区100c对应于第一迂回段313的边缘处的第一组像素驱动电路岛10的边缘凸出或凹陷，以增加功能附加区100b中显示透光区100c的透光面积。
如图12B所示，显示面板100还包括多个连接线40，连接线40与第二迂回段323位于不同层，每组第二迂回段323包括至少两簇长度不同的第二迂回段323，每簇第二迂回段323的两端分别通过连接线40与第一组像素驱动电路岛10中的两个互相镜像设置的像素驱动电路岛10电性连接，以避免同一组相邻两簇第二迂回段323为了实现与像素驱动电路岛10电性连接，在延伸的过程中相交而出现短路。
如图13A、图13B所示，图13A所示的显示面板100与图12A所示显示面板100的结构基本相似，不同之处在于，所述第二信号线32的第二迂回段323呈弧形排布。
具体的，所述第二信号线32的第二迂回段323呈圆弧线设置，此时显示透光区100c的整体形状呈圆形；所述第二信号线32的第二迂回段323呈椭圆弧线设置，此时显示透光区100c的整体形状呈椭圆形。
如图14A、图14B所示，图14A所示的显示面板100与图12A所示显示面板100的结构基本相似，不同之处在于，至少部分所述第二信号线32的第二迂回段323环绕整个显示透光区100c设置。
部分像素驱动电路岛10呈环形均匀排列设置于显示透光区100c的边缘。多个第二信号线32的第二迂回段323环绕透光区121设置且与至少部分像素驱动电路岛10依次电性连接。多个第一信号线31的第一迂回段313依次电性连接像素驱动电路岛10中的任意两个相邻的像素驱动电路岛10。
进一步地，通过将所述第一像素驱动电路102和所述第二像素驱动电路103采用不同的电路结构，以使所述第一像素驱动电路102占据所述功能附加区100b的面积小于所述第二像素驱动电路103占据所述功能附加区100b的面积，从而增大所述显示透光区100c的尺寸。
例如，所述第一像素驱动电路102的器件面积小于所述第二像素驱动电路103的器件面积，所述器件面积主要由器件数量以及器件尺寸决定。具体地，所述第二像素驱动电路103采用7T1C电路结构，所述第一像素驱动电路102可以采用2T1C、4T1C以及6T1C电路结构中的任意一种；进一步地，所述第一像素驱动电路102的器件尺寸小于所述第二像素驱动电路103的器件尺寸，此时，所述第一像素驱动电路102也可以采用7T1C电路结构。
再如，所述第一像素驱动电路102的布线空间小于所述第二像素驱动电路103的布线空间，具体地，当所述第一像素驱动电路102采用2T1C、4T1C以及7T1C电路结构时，可将至少两个所述第一像素驱动电路102共用一条所述信号走线且沿所述信号走线对称设置，所述信号走线可为电源信号走线，所述第一像素驱动电路102的布线空间相比所述第二像素驱动电路103的布线空间减少。
本发明实施例还提供一种显示装置，所述显示装置包括上述显示面板100以及感光元件，所述感光元件设置于所述显示面板100的一侧且对应所述功能附加区100b设置，其中，所述感光元件可为摄像头以及光学触控组件。
有益效果为：本发明实施例提供的显示面板及显示装置，通过在显示透光区外围设置多个第一像素驱动电路，并设置多层透明导线电性连接第一像素阳极和第一像素驱动电路以使第一像素驱动电路驱动第一显示像素发光，有利于增加布线空间，提高了显示透光区的透光率，从而提升了屏下摄像头的拍照和显示效果。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，其中所述显示面板具有主显示区以及至少一功能附加区，所述功能附加区中具有至少一显示透光区，所述显示透光区的尺寸为600~10000um，所述显示面板包括：
    基板，在所述显示透光区的外围且在所述功能附加区内的所述基板上设置有多个第一像素驱动电路；
    至少两绝缘层，覆盖多个所述第一像素驱动电路；
    透明走线，设置于所述至少两绝缘层之间；以及
    多个第一显示像素，设置于所述绝缘层远离所述基板的一侧且位于所述显示透光区内，所述第一显示像素包括第一像素阳极；
    其中，所述第一像素阳极通过所述透明走线与至少部分所述第一像素驱动电路电性连接，以使所述第一像素驱动电路驱动所述第一显示像素发光。
  2. 根据权利要求1所述的显示面板，其中所述第一像素阳极通过至少部分位于所述显示透光区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
  3. 根据权利要求1所述的显示面板，其中所述第一像素阳极通过至少部分位于所述主显示区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
  4. 根据权利要求2所述的显示面板，其中所述透明走线为至少两层，每一所述绝缘层内均设置有过孔，相邻两层所述透明走线之间通过所述过孔电性连接。
  5. 根据权利要求4所述的显示面板，其中所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过一层所述透明走线电性连接；多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过另一层所述透明走线电性连接。
  6. 根据权利要求5所述的显示面板，其中所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过多层所述透明走线电性连接，其中，多层所述透明走线在所述基板上的正投影至少部分重合。
  7. 一种显示面板，其中所述显示面板具有主显示区以及至少一功能附加区，所述功能附加区中具有至少一显示透光区，所述显示面板包括：
    基板，在所述显示透光区的外围且在所述功能附加区内的所述基板上设置有多个第一像素驱动电路；
    至少两绝缘层，覆盖多个所述第一像素驱动电路；
    透明走线，设置于所述至少两绝缘层之间；以及
    多个第一显示像素，设置于所述绝缘层远离所述基板的一侧且位于所述显示透光区内，所述第一显示像素包括第一像素阳极；
    其中，所述第一像素阳极通过所述透明走线与至少部分所述第一像素驱动电路电性连接，以使所述第一像素驱动电路驱动所述第一显示像素发光。
  8. 根据权利要求7所述的显示面板，其中所述第一像素阳极通过至少部分位于所述显示透光区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
  9. 根据权利要求7所述的显示面板，其中所述第一像素阳极通过至少部分位于所述主显示区，以及部分位于所述显示透光区外围且在所述功能附加区内的所述透明走线与所述第一像素驱动电路电性连接。
  10. 根据权利要求8所述的显示面板，其中所述透明走线为至少两层，每一所述绝缘层内均设置有过孔，相邻两层所述透明走线之间通过所述过孔电性连接。
  11. 根据权利要求10所述的显示面板，其中所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过一层所述透明走线电性连接；多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过另一层所述透明走线电性连接。
  12. 根据权利要求11所述的显示面板，其中所述显示透光区的多个所述第一显示像素中的部分所述第一显示像素和所述第一像素驱动电路之间通过多层所述透明走线电性连接，其中，多层所述透明走线在所述基板上的正投影至少部分重合。
  13. 根据权利要求7所述的显示面板，其中所述绝缘层远离所述基板的一侧且位于所述主显示区内还设置有多个第二显示像素，所述第二显示像素包括第二像素阳极，在所述主显示区的所述基板上还设置有多个第二像素驱动电路，以驱动所述第二显示像素发光。
  14. 根据权利要求7所述的显示面板，其中设置于相同层的每相邻两条所述透明走线之间的距离大于2um，且所述透明走线的线宽大于1um。
  15. 根据权利要求7所述的显示面板，其中在所述显示透光区的外围的所述基板上还设置有多条信号走线，多条所述信号走线与多个所述第一像素驱动电路电性连接，用于传输驱动所述第一显示像素的信号至所述第一像素阳极。
  16. 根据权利要求15所述的显示面板，其中所述第一像素驱动电路、所述信号走线以及所述第一像素阳极占所述功能附加区的面积小于或等于50%；多个所述第一像素阳极占所述显示透光区的面积小于50%。
  17. 根据权利要求7所述的显示面板，其中多个所述第一像素驱动电路呈阵列排布形成像素驱动电路岛，所述第一像素阳极通过所述透明走线与所述像素驱动电路岛电性连接。
  18. 根据权利要求17所述的显示面板，其中所述第一显示像素距所述像素驱动电路岛的最远距离为300~5000um。
  19. 根据权利要求7所述的显示面板，其中所述显示面板还包括设置于所述至少两绝缘层之间的导电层，所述导电层位于所述主显示区，所述第二显示像素通过所述导电层与所述第二像素驱动电路电性连接，以使所述第二像素驱动电路驱动所述第二显示像素发光。
  20. 一种显示装置，其中所述显示装置包括权利要求7所述的显示面板；以及
    感光元件，所述感光元件设置于所述显示面板的一侧且对应所述功能附加区设置。
PCT/CN2019/116106 2019-08-09 2019-11-06 显示面板及显示装置 Ceased WO2021027107A1 (zh)

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