WO2023061114A1 - 一种显示面板及电子设备 - Google Patents

一种显示面板及电子设备 Download PDF

Info

Publication number
WO2023061114A1
WO2023061114A1 PCT/CN2022/117731 CN2022117731W WO2023061114A1 WO 2023061114 A1 WO2023061114 A1 WO 2023061114A1 CN 2022117731 W CN2022117731 W CN 2022117731W WO 2023061114 A1 WO2023061114 A1 WO 2023061114A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
display panel
light
electrode
display
Prior art date
Application number
PCT/CN2022/117731
Other languages
English (en)
French (fr)
Inventor
马磊
唐洁华
王鹏
Original Assignee
荣耀终端有限公司
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 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to US18/014,585 priority Critical patent/US20240188380A1/en
Priority to EP22818603.7A priority patent/EP4199129A4/en
Publication of WO2023061114A1 publication Critical patent/WO2023061114A1/zh

Links

Images

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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80521—Cathodes characterised by their shape
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/822—Cathodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/805—Electrodes
    • H10K50/82—Cathodes
    • H10K50/824—Cathodes combined with auxiliary electrodes
    • 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
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • 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
    • H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
    • 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
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80522—Cathodes combined with auxiliary electrodes

Definitions

  • the present application relates to the field of display technology, and in particular to a display panel and an electronic device including the display panel.
  • organic light-emitting diode display devices have attracted widespread attention due to their advantages such as small thickness, high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency.
  • the display screen often has uneven display brightness. Therefore, how to improve the uniformity of the display brightness of the organic light emitting diode display device has become a research hotspot for those skilled in the art.
  • the present application provides a display panel to improve the uniformity of display brightness of an organic light emitting diode display device.
  • the application provides the following technical solutions:
  • an embodiment of the present application provides a display panel, including: a first substrate; a first electrode layer located on one side of the first substrate; and a first electrode layer located on a side away from the first substrate.
  • the cathode layer wherein, the cathode layer covers the display area of the display panel and extends to the frame area of the display panel; the first electrode layer is partially located in the display area of the display panel, and the cathode
  • the part of the layer located in the display area is connected in parallel, and the part is located in the frame area of the display panel, and is connected in parallel with the part of the cathode layer located in the frame area, so that the part of the first electrode layer is connected with the cathode layer in the frame area.
  • the display area is partially connected in parallel to reduce the resistance of the part of the cathode layer located in the display area, thereby reducing the part of the cathode layer close to its signal input end (that is, the part close to the flexible circuit board) and the part far away from its signal input end ( That is, the voltage difference between the parts far away from the flexible circuit board) alleviates the phenomenon of uneven display brightness of the display panel caused by the large voltage difference between different areas of the cathode layer located in the display area, and improves the The display quality of the display panel.
  • the resistance of the cathode layer located in the frame area is reduced by connecting the first electrode layer part in parallel with the cathode layer located in the frame area, thereby reducing the The signal transmission loss of the part of the cathode layer located in the frame area, thereby reducing the signal transmission loss of the signal output from the flexible circuit board to the part of the cathode layer located in the display area.
  • the power consumption of the display panel is reduced.
  • the display panel further includes: an anode layer located on the side of the cathode layer facing the first substrate; a pixel definition layer and a light emitting layer located between the anode layer and the cathode layer , the pixel definition layer includes a plurality of pixel definition areas, the light emitting layer includes a plurality of light emitting units, the light emitting units are in one-to-one correspondence with the pixel definition areas, and are located in the pixel definition area; located in the anode layer The control circuit layer on the side away from the cathode layer.
  • the first electrode layer is located on the side of the anode layer away from the cathode layer, so as to shorten the distance between the first electrode layer and the flexible circuit board, which is beneficial to all
  • the signal transmission between the first electrode layer and the flexible circuit board, and the setting of the first electrode layer does not affect the light emitting area of the light emitting unit, so that the layout and layout of each electrode line in the first electrode
  • the settings can be set according to actual usage requirements, so as to accurately control the resistance of the cathode layer around each light-emitting unit, realize more accurate control of the resistance of the cathode layer, and make the resistance of the display area of the display panel more balanced.
  • the first electrode layer is located between the anode layer and the control circuit layer.
  • first insulating layer between the control circuit layer and the first electrode layer, so as to realize the connection between the control circuit layer and the first electrode layer through the first insulating layer.
  • second insulating layer between the first electrode layer and the anode layer, so as to realize the electrical insulation between the first electrode layer and the anode layer through the second insulating layer, wherein, The control circuit layer is electrically connected to the anode layer through the first via hole, and the first electrode layer is electrically connected to the cathode layer through the second via hole.
  • the second via hole runs through a gap between adjacent light emitting units, so as to prevent the setting of the second via hole from affecting the light emitting area of the light emitting unit.
  • the projection of the first electrode layer on the plane of the first substrate at least partially overlaps with the projection of the light emitting layer on the plane of the first substrate.
  • the first electrode layer is located on a side of the anode layer facing the cathode layer.
  • the projection of the first electrode layer on the plane where the first substrate is located does not overlap with the projection of the light emitting layer on the plane where the first substrate is located, thereby avoiding the The arrangement of an electrode layer affects the light emitting area of the display panel.
  • the first electrode layer includes a plurality of first electrode lines
  • the plurality of light emitting units includes a plurality of rows of light emitting units
  • the first electrode lines extend along the row direction
  • the first electrode The projection of the line on the plane where the first substrate is located is within the projection range of the gap between the adjacent rows of the light emitting units on the plane where the first substrate is located.
  • the first electrode layer further includes a plurality of second electrode lines, the second electrode lines extend along the column direction, the plurality of light-emitting units include multiple columns of light-emitting units, and the second The projection of the electrode lines on the plane where the first substrate is located is within the projection range of the gap between the light emitting units in adjacent columns on the plane where the first substrate is located.
  • the shape of the electrode lines in the first electrode layer is wavy or zigzag.
  • the embodiment of the present application also provides an electronic device, the display screen of the electronic device includes the display panel described in any one of the above, so as to improve the uniformity of display brightness when the display screen of the electronic device is displayed, and at the same time On the premise that the display brightness of the display panel is fixed, the power consumption of the electronic device is reduced.
  • FIG. 1 is a schematic diagram of an application scenario of a display panel
  • FIG. 2 is a top view of a current display panel
  • FIG. 3 is a structural sectional view of a current display panel
  • FIG. 4 is a cross-sectional view of a display panel provided by an embodiment of the present application.
  • FIG. 5 is a cross-sectional view of a display panel provided by another embodiment of the present application.
  • FIG. 6 is a cross-sectional view of a display panel provided by another embodiment of the present application.
  • FIG. 7 is a schematic diagram of the relative positions of the first electrode layer and the light emitting unit in the display panel provided by an embodiment of the present application.
  • Fig. 8 is a schematic diagram showing that different areas on the surface of the cathode layer away from the anode layer are not on the same plane;
  • FIG. 9 is a cross-sectional view of a display panel provided by another embodiment of the present application.
  • Fig. 10 is a schematic diagram of the relative positions of the first electrode layer and the light emitting unit in the display panel provided by another embodiment of the present application;
  • Fig. 11 is a schematic diagram of the relative positions of the first electrode layer and the light emitting unit in the display panel provided by another embodiment of the present application;
  • Fig. 12 is a schematic diagram of the relative positions of the first electrode layer and the light emitting unit in the display panel provided by another embodiment of the present application;
  • FIG. 13 is a schematic diagram of the shape of the electrode lines in the first electrode layer in the display panel provided by an embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of an electronic device provided by an embodiment of the application.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner.
  • OLED Organic Light-Emitting Diode, organic light-emitting display diode
  • organic electric laser display organic light-emitting semiconductor
  • OLED Organic Electroluminescence Display
  • Flexible Printed Circuit is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material.
  • Figure 1 is a schematic diagram of the application scene of the OLED display panel.
  • users In daily life, users often swipe their mobile phones to watch videos and browse the web on the OLED display panel, whether they are on the way of transportation or in leisure time. , playing games, etc., and in the process of swiping the mobile phone, the OLED display panel needs to continuously update its display screen to update the displayed image and/or displayed text, so as to meet the user's viewing and display needs.
  • FIG. 2 shows a top view of an OLED display panel
  • the OLED display panel includes a display area 01 and a frame area 02
  • the display area 01 is provided with a plurality of OLED light-emitting units
  • the frame area 02 is provided with a flexible circuit board FPC03 and an integrated circuit board IC04
  • the integrated circuit board IC04 is electrically connected to the flexible circuit board FPC03
  • the flexible circuit board FPC03 is electrically connected to each OLED light-emitting unit of the display area 01 through an electrical connection line 05 connect.
  • the integrated circuit board IC04 transmits the drive signal to the electrical connection line 05 through the flexible circuit board FPC03, and then transmits the driving signal to each OLED light-emitting unit of the display area 10 through the electrical connection line 05, so as to control each OLED light-emitting unit to emit light.
  • the OLED display panel can display a display image.
  • FIG. 3 shows a cross-sectional view of the structure of an OLED display panel.
  • the display area 01 of the OLED display panel includes an anode layer 07 and a cathode layer 06 that are oppositely arranged, and A light-emitting layer 08 between layers 06, wherein the anode layer 07 includes a plurality of anodes, the light-emitting layer 08 includes a plurality of light-emitting units, and the anodes correspond to the light-emitting units one by one, so that the OLED display When the panel is working, each of the light-emitting units can be controlled to emit light by applying voltage to the cathode layer and the anode corresponding to each of the light-emitting units.
  • the cathode layer 06 also extends to the frame area 02, and is connected to the flexible circuit board through the electrical connection line 05 located in the frame area 02, so that the integrated circuit located in the frame area
  • the circuit board can apply voltage to the cathode layer through the flexible circuit board and the electrical connection wire in sequence.
  • the electrical connection wire 05 electrically connecting the cathode layer 06 and the flexible circuit board is relatively long, so that the signal output by the flexible circuit board is transmitted to the cathode layer with a large loss, which will cause the OLED display panel High power consumption.
  • an embodiment of the present application provides a display panel, as shown in FIG. 4, the display panel includes:
  • a first electrode layer 20 located on one side of the first substrate 10;
  • a cathode layer 30 located on a side of the first electrode layer 20 away from the first substrate 10;
  • the cathode layer 30 covers the display area 100 of the display panel, and extends to the frame area 200 of the display panel; the first electrode layer 20 is partly located in the display area 100 of the display panel, and the The part of the cathode layer 30 located in the display area 100 is connected in parallel, partly located in the frame area 200 of the display panel, and connected in parallel with the part of the cathode layer 30 located in the frame area 200 .
  • the frame area of the display panel is also bound with a flexible circuit board and an integrated circuit board, as shown in FIG.
  • a predetermined flexible circuit board is electrically connected, and the flexible circuit board is electrically connected to the integrated circuit board, so that the integrated circuit board provides voltage for the cathode layer through the flexible circuit board and the electrical connection line 40 in turn. Signal.
  • the display panel in addition to the first substrate, the cathode layer and the first electrode layer, the display panel also includes: an anode layer, the anode layer includes a plurality of anode units 60; a pixel definition layer 50 and a light emitting layer located between the anode layer and the cathode layer 30, the pixel definition layer 50 includes a plurality of pixel definition regions,
  • the light-emitting layer includes a plurality of light-emitting units 70, the light-emitting units 70 correspond to the pixel definition area one by one, and are located in the pixel definition area;
  • the control circuit is located on the side of the anode layer away from the cathode layer 30
  • the control circuit layer includes a plurality of control units 80 .
  • the control unit is in one-to-one correspondence with the anode unit and the light-emitting unit, so as to control the light-emitting state of the light-emitting unit by controlling the voltage value applied to the
  • the plurality of light-emitting units include light-emitting units of three colors: a red light-emitting unit, a blue light-emitting unit, and a green light-emitting unit, so that the display panel can display a color picture , but this application does not limit it, it depends on the situation.
  • the control unit controls the conduction state of the path between the anode unit and the flexible circuit board.
  • the integrated circuit board applies a first voltage to the anode unit sequentially through the flexible circuit board and the control unit, And apply a second voltage to the first electrode layer through the flexible circuit board, the first voltage is different from the second voltage, so as to form a voltage difference on both sides of the light emitting unit, and control the light emitting unit to perform show.
  • the display panel provided by the embodiment of the present application in addition to the first substrate and the cathode layer, also includes the first electrode layer connected in parallel with the cathode layer, so that the part of the first electrode layer is connected to the The cathode layer is connected in parallel to the part of the display area to reduce the resistance of the part of the cathode layer located in the display area, thereby reducing the part of the cathode layer close to its signal input terminal (that is, the part close to the flexible circuit board) and the signal far away from it.
  • the voltage difference between the part of the input terminal alleviates the phenomenon of uneven display brightness of the display panel caused by the large voltage difference between different areas of the cathode layer located in the display area to improve the display quality of the display panel.
  • the resistance of the cathode layer located in the frame area is reduced by connecting the first electrode layer part in parallel with the cathode layer located in the frame area, thereby reducing the The signal transmission loss of the part of the cathode layer located in the frame area, thereby reducing the signal transmission loss of the signal output from the flexible circuit board to the part of the cathode layer located in the display area.
  • the power consumption of the display panel is reduced.
  • the first electrode layer 20 is located on the side of the anode layer away from the cathode layer 30 , That is, the first electrode layer 20 is located on the side of the anode unit 60 away from the cathode layer 30, so as to shorten the distance between the first electrode layer and the flexible circuit board, which is beneficial for the first electrode layer and the signal transmission between the flexible circuit board.
  • the cathode layer 30 may be directly electrically connected to the first electrode layer 20 through a via hole, as shown in FIG. It is electrically connected to the first electrode layer 20 , as shown in FIG. 6 , which is not limited in the present application and depends on the specific circumstances.
  • the first electrode layer is located between the anode layer and the control circuit layer, that is, the first electrode layer 20 is located in the anode unit Between the film layer where 60 is located and the film layer where the control unit 80 is located continues to be shown in FIG. 5 and FIG. 6 .
  • the first electrode layer since the first electrode layer is located on the side of the anode unit 60 away from the light emitting unit 70, therefore, in the embodiment of the present application, the first electrode layer The setting does not affect the light-emitting area of the light-emitting unit, so that the layout and arrangement of the electrode lines in the first electrode can be set according to actual use requirements, so as to precisely control the resistance of the cathode layer around each light-emitting unit to achieve more accurate The resistance of the cathode layer is controlled so that the resistance of the display area of the display panel is more balanced.
  • the voltage difference is gradually Therefore, in the embodiment of the present application, in the direction from the end of the cathode layer close to the signal input end to the end of the cathode layer away from the signal transmission end, by adjusting the first electrode layer corresponding to the area where each light-emitting unit is located In the part, the resistance of the cathode layer corresponding to each light emitting unit is adjusted, so that the display brightness of the display panel is more uniform.
  • the projection of the first electrode layer on the plane of the first substrate at least partially overlaps with the projection of the light emitting layer on the plane of the first substrate , such as a partial area of the first electrode layer is located directly below the light emitting unit, but this application is not limited to this, in other embodiments of the application, the first electrode layer is located under the first
  • the projection on the plane where the substrate is located may not overlap with the projection of the light-emitting layer on the plane where the first substrate is located, depending on the circumstances.
  • first insulating layer between the control circuit layer and the first electrode layer, so that the control circuit can be realized through the first insulating layer Electrical insulation between the first electrode layer and the first electrode layer
  • second insulating layer between the first electrode layer and the anode layer, so as to realize the first electrode through the second insulating layer layer and the electrical insulation of the anode layer.
  • the control circuit layer is electrically connected to the anode layer through a first via hole
  • the first electrode layer is electrically connected to the cathode layer through a second via hole.
  • this application does not limit it, and it depends on the specific circumstances.
  • FIG. 5 is a cross-sectional view along AB in FIG.
  • the projection on the plane where the first substrate is located is located in the gap between adjacent light-emitting units 70 within the projection range of the plane where the first substrate is located, but this application does not limit this, and it depends on the situation.
  • the first insulating layer is a planarization layer, so as to improve the flatness of the formation plane of the first electrode layer and reduce the The process difficulty of the electrode layer;
  • the second insulating layer is a planarization layer to improve the flatness of the formation plane of the anode layer and reduce the process difficulty of the anode layer.
  • the surface of the cathode layer 30 away from the anode layer includes the first region A
  • the second region B and the third region C are taken as examples, the first region A, the second region B and the third region C are located on different planes, wherein the planes where the first region A and the third region C are located are parallel, and the second Area B connects the first area A and the third area C.
  • the light emitted from the first area A and the third area C are parallel, and the light emitted from the second area B is parallel to that of the first area
  • the light emitted by A is not parallel, so that the light emitted by the second area B and the light emitted by the first area A overlap each other in some areas, so that the light intensity in this area increases, and some areas do not overlap each other, maintaining the light emitted by the first area Intensity of light, so that the intensity of light emitted from different areas of the surface of the cathode layer away from the anode layer is different, the light in some areas is stronger, and the light in some areas is weaker, resulting in light and shadow phenomenon.
  • the first electrode layer is located on the side of the anode layer away from the cathode layer and is far away from the cathode layer, even if the first electrode layer uses a non-uniform electrode form, which corresponds to the flatness of the formation plane of the cathode layer is also small, to ensure the flatness of the formation plane of the cathode layer, so that the different regions of the surface of the cathode layer away from the anode layer are on the same plane In order to avoid light and shadow phenomenon caused by different regions of the surface of the cathode layer away from the anode layer being not on the same plane.
  • the first electrode layer 20 is located on the side of the anode layer facing the cathode layer 30, that is, the first electrode layer 20 is located in the pixel definition layer. 50 and the cathode layer 30.
  • the first electrode layer when the first electrode layer is located between the film layer where the light-emitting unit is located and the cathode layer, if the first electrode layer is arranged above the light-emitting unit, it will affect the performance of the light-emitting unit. Light emitting area.
  • the projection of the first electrode layer on the plane where the first substrate is located is the same as the projection of the light emitting layer on the second Projections on a plane where a substrate is located do not overlap, thereby preventing the setting of the first electrode layer from affecting the light-emitting area of the display panel.
  • the fourth insulating layer There are openings in one-to-one correspondence with the pixel definition area, and the opening is connected to the pixel definition area, so that the light emitting unit 70 is partially located in the pixel definition area, electrically connected to the anode unit 60, and partially Located in the opening of the fourth insulating layer and electrically connected to the cathode layer 30 .
  • the first electrode line 22 extends along the row direction X, and the projection of the first electrode line 22 on the plane where the first substrate is located is located in the gap between the light-emitting units 70 in adjacent rows. within the projection range on the plane where a substrate is located, so that the first electrode layer is arranged by using the row gap between adjacent rows of light-emitting units, and then on the basis of improving the display brightness uniformity of the display screen of the display panel, without Affects the area of the light emitting region of the display panel.
  • the first electrode line 22 since the first electrode line 22 is located in the gap between the light emitting units 70 in adjacent rows, it does not affect the light emitting area of the light emitting unit 70, therefore, in the embodiment of the present application
  • the first via hole 21 electrically connecting the first electrode line 22 and the cathode layer 30 may be located in the gap between the light emitting units 70 in adjacent columns, or may be connected to the The light emitting units 70 are located in the same column, which is not limited in the present application, and it depends on the situation.
  • the first electrode layer further includes a plurality of second electrode lines 23, and the second electrode lines 23 extends along the column direction Y
  • the plurality of light emitting units 70 includes multiple columns of light emitting units 70
  • the projection of the second electrode line 23 on the plane where the first substrate is located is located between the light emitting units 70 in adjacent columns
  • the gap is within the projection range on the plane where the first substrate is located, so that the first electrode layer is arranged by using the gap between the light-emitting units in adjacent columns, thereby improving the display brightness uniformity of the display screen of the display panel
  • the area of the light emitting region of the display panel is not affected.
  • the top view of the first electrode layer may be a plurality of stripes, as shown in Figure 10 and Figure 11, or may be a grid shape, as shown in Figure 12, It can also be in other shapes, which is not limited in the present application, and depends on specific circumstances.
  • the shape of the electrode lines in the first electrode layer is a straight line, as shown in Figures 10-12, in another embodiment of the present application , the shape of the electrode lines in the first electrode layer is a broken line, as shown in FIG.
  • Other shapes are not limited in this application, depending on the circumstances.
  • the display panel provided by the embodiment of the present application includes not only the first substrate and the cathode layer, but also the first electrode layer connected in parallel with the cathode layer, so that the part of the first electrode layer is connected with the cathode layer.
  • the cathode layer is connected in parallel to the part of the display area to reduce the resistance of the part of the cathode layer located in the display area, thereby reducing the part of the cathode layer close to its signal input terminal (that is, the part close to the flexible circuit board) and the signal far away from it.
  • the voltage difference between the part of the input terminal alleviates the phenomenon of uneven display brightness of the display panel caused by the large voltage difference between different areas of the cathode layer located in the display area to improve the display quality of the display panel.
  • the resistance of the cathode layer located in the frame area is reduced by connecting the first electrode layer part in parallel with the cathode layer located in the frame area, thereby reducing the The signal transmission loss of the part of the cathode layer located in the frame area, thereby reducing the signal transmission loss of the signal output from the flexible circuit board to the part of the cathode layer located in the display area.
  • the power consumption of the display panel is reduced.
  • an embodiment of the present application also provides an electronic device.
  • the display screen of the electronic device includes the display panel provided by any one of the above embodiments, so as to improve the uniformity of the display brightness of the display screen of the electronic device.
  • the electronic device can be a mobile phone, a tablet computer, a desktop, a laptop, a notebook computer, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a handheld computer, a netbook, a personal digital assistant (Personal Digital Assistant, PDA), wearable electronic devices, smart watches, vehicle display devices, instrumentation display devices and other devices with display functions.
  • the electronic device may be a foldable display device or a non-foldable display device, which is not limited in the present application and depends on the circumstances.
  • the electronic device may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, and a charging management module 140 , power management module 141, battery 142, antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, button 190, motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (subscriber identification module, SIM) card interface 195, etc.
  • SIM subscriber identification module
  • the sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, bone conduction sensor 180M, etc.
  • the structure shown in this embodiment does not constitute a specific limitation on the electronic device.
  • the electronic device may include more or fewer components than shown, or combine certain components, or separate certain components, or arrange different components.
  • the illustrated components can be realized in hardware, software or a combination of software and hardware.
  • the electronic device implements a display function through a GPU, a display screen 194, an application processor, and the like.
  • the GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering.
  • Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.
  • the display screen 194 is used to display images, videos and the like.
  • the display screen 194 includes a display panel.
  • the display panel can use liquid organic light emitting diode (organic light-emitting diode, OLED), active matrix organic light emitting diode or active matrix organic light emitting diode (active-matrix organic light emitting diode, AMOLED), Miniled, MicroLed , Micro-oled, etc.
  • the electronic device may include 1 or N display screens 194, where N is a positive integer greater than 1.
  • a series of graphical user interfaces can be displayed on the display screen 194 of the electronic device, and these GUIs are the main screen of the electronic device.
  • GUI graphical user interface
  • a control is a GUI element, which is a software component contained in an application that controls all data processed by the application and the interaction of these data. Users can interact with the control through direct manipulation. , so as to read or edit the relevant information of the application.
  • controls may include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and Widgets.
  • the display screen 194 may display virtual buttons (one-key arrangement, start arrangement, scene arrangement).
  • the disclosed system, device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本申请公开了一种显示面板及包括该显示面板的电子设备，该显示面板包括：第一基板；位于第一基板一侧的第一电极层；位于第一电极层远离第一基板一侧的阴极层；阴极层覆盖显示面板的显示区，并延伸至显示面板的边框区；第一电极层部分位于显示面板的显示区，与阴极层位于显示区的部分并联，部分位于显示面板的边框区，与阴极层位于边框区的部分并联；从而通过第一电极层的部分与阴极层位于显示区部分并联，来降低阴极层位于显示区的部分的电阻，进而降低阴极层靠近其信号输入端的部分和远离其信号输入端的部分之间的电压差，缓解由于阴极层位于显示区的部分不同区域之间压差较大，导致的显示面板的显示亮度不均现象，提高显示面板的显示质量。

Description

一种显示面板及电子设备
本申请要求于2021年10月12日提交中国专利局、申请号为202111188690.4、发明名称为“一种显示面板及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板以及一种包括该显示面板的电子设备。
背景技术
随着显示技术的发展，显示设备的应用越来越广泛，已逐渐应用到人们工作和生活的各个方面。其中，有机发光二极管显示设备因具有厚度小、亮度高、功耗低、响应快、清晰度高、柔性好以及发光效率高等优势，受到广泛关注。但是，现有有机发光二极管显示设备在使用过程中，显示画面经常存在显示亮度不均匀的现象。因此，如何提高有机发光二极管显示设备的显示亮度的均匀性成为本领域技术人员的研究热点。
发明内容
本申请提供了一种显示面板，以提高有机发光二极管显示设备的显示亮度的均匀性。为了实现上述目的，本申请提供了以下技术方案：
第一方面，本申请实施例提供了一种显示面板，包括：第一基板；位于所述第一基板一侧的第一电极层；位于所述第一电极层远离所述第一基板一侧的阴极层；其中，所述阴极层覆盖所述显示面板的显示区，并延伸至所述显示面板的边框区；所述第一电极层部分位于所述显示面板的显示区，与所述阴极层位于所述显示区的部分并联，部分位于所述显示面板的边框区，与所述阴极层位于所述边框区的部分并联，从而通过所述第一电极层的部分与所述阴极层位于显示区部分并联，来降低所述阴极层位于所述显示区的部分的电阻，进而降低所述阴极层靠近其信号输入端的部分(即靠近柔性电路板的部分)和远离其信号输入端的部分(即远离柔性电路板的部分)之间的电压差，缓解由于所述阴极层位于显示区的部分不同区域之间压差较大，导致的所述显示面板的显示亮度不均现象，提高所述显示面板的显示质量。
而且，本申请实施例所提供的显示面板，还通过所述第一电极层部分与所述阴极层位于所述边框区的部分并联，来降低所述阴极层位于边框区部分的电阻，从而降低所述阴极层位于所述边框区部分的信号传输损耗，进而降低所述柔性电路板输出的信号传输到所述阴极层位于所述显示区的部分的信号传输损耗，在所述显示面板的显示亮度固定的前提下，降低所述显示面板的功耗。
在一种实现方式中，所述显示面板还包括：位于所述阴极层朝向所述第一基板一侧的阳极层；位于所述阳极层和所述阴极层之间的像素定义层和发光层，所述像素定义层包括多个像素定义区，所述发光层包括多个发光单元，所述发光单元与所述像素定义区一一对应，位于所述像素定义区内；位于所述阳极层远离所述阴极层一侧的控制电路层。
在另一种实现方式中，所述第一电极层位于所述阳极层远离所述阴极层的一侧，以缩短所述第一电极层与所述柔性电路板之间的距离，有利于所述第一电极层与所述柔性电路板之间的信号传输，且所述第一电极层的设置不影响所述发光单元的发光区域，从而使得所述第一电极中各电极线的布局和设置可以根据实际使用需求设置，从而精确调控阴极层位于各发光单元周围的电阻，实现更精确的阴极层电阻控制，使得所述显示面板的显示区域的电阻更均衡。
在又一种实现方式中，所述第一电极层位于所述阳极层与所述控制电路层之间。
在另一种实现方式中，所述控制电路层与所述第一电极层之间具有第一绝缘层，以通过所述第一绝缘层实现所述控制电路层与所述第一电极层之间的电绝缘，所述第一电极层与所述阳极层之间具有第二绝缘层，以通过所述第二绝缘层实现所述第一电极层和所述阳极层的电绝缘，其中，所述控制电路层通过第一过孔与所述阳极层电连接，所述第一电极层通过第二过孔与所述阴极层电连接。
在又一种实现方式中，所述第二过孔贯穿相邻所述发光单元之间的间隙，以避免所述第二过孔的设置影响所述发光单元的发光区域。
在另一种实现方式中，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影至少部分交叠。
在又一种实现方式中，所述第一电极层位于所述阳极层朝向所述阴极层的一侧。
在另一种实现方式中，所述阳极层与所述第一电极层之间具有第三绝缘层，所述第一电极层与所述阴极层之间具有第四绝缘层，以利用所述第四绝缘层使得所述阴极层的形成表面为平整表面。
在又一种实现方式中，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影不交叠，从而避免所述第一电极层的设置影响所述显示面板的发光区域。
在再一种实现方式中，所述第一电极层包括多条第一电极线，所述多个发光单元包括多行发光单元，所述第一电极线沿行方向延伸，所述第一电极线在所述第一基板所在平面上的投影位于相邻行所述发光单元之间的间隙在所述第一基板所在平面上的投影范围内。
在又一种实现方式中，所述第一电极层还包括多条第二电极线，所述第二电极线沿列方向延伸，所述多个发光单元包括多列发光单元，所述第二电极线在所述第一基板所在平面上的投影位于相邻列所述发光单元之间的间隙在所述第一基板所在平面上的投影范围内。
在再一种实现方式中，所述第一电极层中电极线的形状为波浪形或折线形。
第二方面，本申请实施例还提供了一种电子设备，所述电子设备的显示屏包括上述任一项所述的显示面板，以提高电子设备的显示画面时，显示亮度的均匀度，同时在所述显示面板的显示亮度固定的前提下，降低所述电子设备的功耗。
应当理解的是，本申请中对技术特征、技术方案、有益效果或类似语言的描述并不是暗示在任意的单个实施例中可以实现所有的特点和优点。相反，可以理解的是对于特征或有益效果的描述意味着在至少一个实施例中包括特定的技术特征、技术方案或有益效果。因此，本说明书中对于技术特征、技术方案或有益效果的描述并不一定是指相同的实施例。进而，还可以任何适当的方式组合本实施例中所描述的技术特征、技术方案和有益效果。 本领域技术人员将会理解，无需特定实施例的一个或多个特定的技术特征、技术方案或有益效果即可实现实施例。在其他实施例中，还可在没有体现所有实施例的特定实施例中识别出额外的技术特征和有益效果。
附图说明
图1为显示面板的应用场景示意图；
图2为目前显示面板的俯视图；
图3为目前显示面板的结构剖视图；
图4为本申请一个实施例所提供的显示面板的剖视图；
图5为本申请另一个实施例所提供的显示面板的剖视图；
图6为本申请又一个实施例所提供的显示面板的剖视图；
图7为本申请一个实施例所提供的显示面板中，第一电极层和发光单元的相对位置示意图；
图8为阴极层远离阳极层一侧表面不同区域不在同一平面的示意图；
图9为本申请再一个实施例所提供的显示面板的剖视图；
图10为本申请另一个实施例所提供的显示面板中，第一电极层和发光单元的相对位置示意图；
图11为本申请又一个实施例所提供的显示面板中，第一电极层和发光单元的相对位置示意图；
图12为本申请再一个实施例所提供的显示面板中，第一电极层和发光单元的相对位置示意图；
图13为本申请一个实施例所提供的显示面板中，第一电极层中电极线的形状示意图；
图14为申请一个实施例所提供的电子设备的结构示意图。
具体实施方式
本申请说明书和权利要求书及附图说明中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而不是用于限定特定顺序。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
为了下述各实施例的描述清楚简洁，首先给出相关技术的简要介绍：
OLED(OrganicLight-Emitting Diode，有机发光显示二极管)，又称为有机电激光显示、有机发光半导体(OrganicElectroluminescence Display，OLED)，是指有机半导体材料和发光材料在电场驱动下，通过载流子注入和复合进行发光的半导体结构。
柔性电路板(Flexible Printed Circuit简称FPC)是以聚酰亚胺或聚酯薄膜为基材制成的一种具有高度可靠性，绝佳的可挠性印刷电路板。
如图1所示，图1为OLED显示面板的应用场景示意图，在日常生活中，用户无论是在乘坐交通工具途中，还是在休闲时间，经常会刷手机，利用OLED显示面板观看视频、浏览 网页、玩游戏等，而在刷手机的过程中，OLED显示面板需要不断更新其显示画面，以进行显示图像和/或显示文字的更新，从而满足用户的观看显示需求。
如图2所示，图2示出了OLED显示面板的俯视图，所述OLED显示面板包括显示区01和边框区02，其中，所述显示区01设置有多个OLED发光单元，所述边框区02设置有柔性电路板FPC03和集成电路板IC04，所述集成电路板IC04与所述柔性电路板FPC03电连接，所述柔性电路板FPC03通过电连接线05与显示区01的各OLED发光单元电连接。具体工作时，所述集成电路板IC04通过柔性电路板FPC03将驱动信号传输给电连接线05，再经电连接线05传输至显示区10的各个OLED发光单元，以控制各个OLED发光单元发光，从而使得所述OLED显示面板进行显示画面的显示。
如图3所示，图3示出了OLED显示面板的结构剖视图，所述OLED显示面板的显示区01包括相对设置的阳极层07和阴极层06，以及位于所述阳极层07和所述阴极层06之间的发光层08，其中，所述阳极层07包括多个阳极，所述发光层08包括多个发光单元，所述阳极与所述发光单元一一对应，从而在所述OLED显示面板工作时，可以通过给所述阴极层和各所述发光单元对应的阳极施加电压，控制各所述发光单元进行发光。
继续如图3所示，目前OLED显示面板中，所述阴极层06还延伸至边框区02，通过位于所述边框区02的电连接线05与柔性电路板相连，以使得位于边框区的集成电路板可以依次通过所述柔性电路板和所述电连接线为阴极层施加电压。实际应用中，由于OLED显示面板的显示区域面积较大，导致阴极层06靠近电连接线05一端的电压和阴极层06远离电连接线05一端的电压之间的差值加大，从而导致显示画面存在显示亮度不均匀的现象，如显示画面的靠近电路板的一端和远离电路板的一端显示亮度不同，和/或，显示画面的中心区域和边缘区域的显示亮度不同等。
另外，电连接所述阴极层06和所述柔性电路板的电连接线05较长，使得所述柔性电路板输出的信号传输到所述阴极层损耗较大，会造成所述OLED显示面板的功耗较大。
有鉴于此，本申请实施例提供了一种显示面板，如图4所示，该显示面板包括：
第一基板10；
位于所述第一基板10一侧的第一电极层20；
位于所述第一电极层20远离所述第一基板10一侧的阴极层30；
其中，所述阴极层30覆盖所述显示面板的显示区100，并延伸至所述显示面板的边框区200；所述第一电极层20部分位于所述显示面板的显示区100，与所述阴极层30位于所述显示区100的部分并联，部分位于所述显示面板的边框区200，与所述阴极层30位于所述边框区200的部分并联。
具体工作时，所述显示面板的边框区还绑定有柔性电路板和集成电路板，继续如图4所示，在本申请实施例中，所述阴极层20通过电连接线40与后续绑定的柔性电路板电连接，所述柔性电路板与所述集成电路板电连接，以使得所述集成电路板依次通过所述柔性电路板和所述电连接线40为所述阴极层提供电压信号。
如图5所示，在本申请实施例中，所述显示面板除包括第一基板、阴极层和第一电极层外，还包括：位于所述阴极层30朝向所述第一基板10一侧的阳极层，所述阳极层包括多个阳极单元60；位于所述阳极层和所述阴极层30之间的像素定义层50和发光层，所述 像素定义层50包括多个像素定义区，所述发光层包括多个发光单元70，所述发光单元70与所述像素定义区一一对应，位于所述像素定义区内；位于所述阳极层远离所述阴极层30一侧的控制电路层，所述控制电路层包括多个控制单元80。在本实施例中，所述控制单元和所述阳极单元、所述发光单元一一对应，以通过控制施加到所述阳极单元上的电压值，控制所述发光单元的发光状态。
可选的，在本申请的一个实施例中，所述多个发光单元包括红色发光单元、蓝色发光单元和绿色发光单元三种颜色的发光单元，以使得所述显示面板实现彩色画面的显示，但本申请对此并不做限定，具体视情况而定。
需要说明的是，当所述显示面板的边框区绑定有柔性电路板和集成电路板时，所述控制单元控制所述阳极单元与所述柔性电路板之间的通路的导通状态，当所述控制单元控制所述阳极单元与所述柔性电路板之间的通路导通时，所述集成电路板依次通过所述柔性电路板和所述控制单元给所述阳极单元施加第一电压，并通过所述柔性电路板给所述第一电极层施加第二电压，所述第一电压和所述第二电压不同，从而在所述发光单元两侧形成电压差，控制所述发光单元进行显示。
由上可知，本申请实施例所提供的显示面板，除包括第一基板和阴极层外，还包括与所述阴极层并联的第一电极层，从而通过所述第一电极层的部分与所述阴极层位于显示区部分并联，来降低所述阴极层位于所述显示区的部分的电阻，进而降低所述阴极层靠近其信号输入端的部分(即靠近柔性电路板的部分)和远离其信号输入端的部分(即远离柔性电路板的部分)之间的电压差，缓解由于所述阴极层位于显示区的部分不同区域之间压差较大，导致的所述显示面板的显示亮度不均现象，提高所述显示面板的显示质量。
而且，本申请实施例所提供的显示面板，还通过所述第一电极层部分与所述阴极层位于所述边框区的部分并联，来降低所述阴极层位于边框区部分的电阻，从而降低所述阴极层位于所述边框区部分的信号传输损耗，进而降低所述柔性电路板输出的信号传输到所述阴极层位于所述显示区的部分的信号传输损耗，在所述显示面板的显示亮度固定的前提下，降低所述显示面板的功耗。
在上述任一实施例的基础上，在本申请的一个实施例中，如图5和图6所示，所述第一电极层20位于所述阳极层远离所述阴极层30的一侧，即所述第一电极层20位于所述阳极单元60远离所述阴极层30的一侧，以缩短所述第一电极层与所述柔性电路板之间的距离，有利于所述第一电极层与所述柔性电路板之间的信号传输。需要说明的是，在本实施例中，所述阴极层30可以直接通过过孔与第一电极层20电连接，如图5所示，也可以通过与阳极单元60位于同一层的电连接结构与第一电极层20电连接，如图6所示，本申请对此并不做限定，具体视情况而定。
在上述实施例的基础上，在本申请的一个实施例中，所述第一电极层位于所述阳极层与所述控制电路层之间，即所述第一电极层20位于所述阳极单元60所在膜层与所述控制单元80所在膜层之间，继续如图5和图6所示。需要说明的是，在本实施例中，由于所述第一电极层位于所述阳极单元60远离所述发光单元70的一侧，因此，在本申请实施例中，所述第一电极层的设置不影响所述发光单元的发光区域，从而使得所述第一电极中各电极 线的布局和设置可以根据实际使用需求设置，从而精确调控阴极层位于各发光单元周围的电阻，实现更精确的阴极层电阻控制，使得所述显示面板的显示区域的电阻更均衡。
还需要说明的是，在本申请实施例中，由于所述柔性电路板输出的信号在由所述阴极层靠近信号输入端的一端向阴极层远离信号传输端的一端传输的过程中，电压差是逐渐增大的，因此，在本申请实施例中，可以在由所述阴极层靠近信号输入端的一端指向阴极层远离信号传输端的一端的方向上，通过调节各发光单元所在区域对应的第一电极层的部分，调节各发光单元对应的阴极层电阻，使得所述显示面板的显示亮度更加均匀。
可选的，在本申请的一个实施例中，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影至少部分交叠，如所述第一电极层的部分区域位于所述发光单元的正下方，但本申请对此并不做限定，在本申请的其他实施例中，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影也可以不交叠，具体视情况而定。
在上述实施例的基础上，在本申请的一个实施例中，所述控制电路层与所述第一电极层之间具有第一绝缘层，以通过所述第一绝缘层实现所述控制电路层与所述第一电极层之间的电绝缘，同理，所述第一电极层与所述阳极层之间具有第二绝缘层，以通过所述第二绝缘层实现所述第一电极层和所述阳极层的电绝缘。需要说明的是，在本申请实施例中，由于所述第一电极层和所述阴极层不在同一膜层，所述阳极层与所述控制电路层不在同一膜层，因此，在本申请的一个具体实施例中，所述控制电路层通过第一过孔与所述阳极层电连接，所述第一电极层通过第二过孔与所述阴极层电连接。但本申请对此并不做限定，具体视情况而定。
需要说明的是，在本申请实施例中，所述第一电极层位于所述阳极单元远离所述发光单元的一侧，所述阴极层位于所述发光单元远离所述阳极单元的一侧，即所述第一电极层和所述阳极层分别位于所述发光单元的两侧，为了避免所述第二过孔的设置影响所述发光单元的发光区域，在本申请的一个可选实施例中，如图5和图7所示，图5为图7沿AB的剖视图，所述第二过孔21贯穿相连所述发光单元70之间的间隙，即所述第一过孔21在所述第一基板所在平面上的投影位于相邻发光单元70的间隙在所述第一基板所在平面的投影范围内，但本申请对此并不做限定，具体视情况而定。
在上述任一实施例的基础上，在本申请的一个实施例中，所述第一绝缘层为平坦化层，以提高所述第一电极层的形成平面的平整度，降低所述第一电极层的工艺难度；所述第二绝缘层层为平坦化层，以提高所述阳极层的形成平面的平整度，降低所述阳极层的工艺难度。
需要说明的是，当阴极层远离所述阳极层一侧的表面的不同区域不在同一平面上时，如图8所示，以阴极层30远离所述阳极层一侧表面包括第一区域A、第二区域B以及第三区域C为例，所述第一区域A、第二区域B和第三区域C位于不同平面上，其中，第一区域A和第三区域C所在平面平行，第二区域B连接所述第一区域A和第三区域C，具体工作时，所述第一区域A和所述第三区域C出射的光线平行，所述第二区域B出射的光线与第一区域A出射的光线不平行，从而使得第二区域B出射的光线和第一区域A出射的光线在部分区域相互叠加，使得该区域的光线强度增加，部分区域不相互叠加，维持第一区域 出射光线的光线强度，从而使得所述阴极层远离所述阳极层一侧表面不同区域出射的光线强度不同，部分区域的光线较强，部分区域的光线较弱，产生光影现象。
而在本申请实施例中，由于所述第一电极层位于所述阳极层远离所述阴极层一侧，距离所述阴极层较远，从而使得所述第一电极层即便采用非整面电极的形式，其对应所述阴极层的形成平面的平整度影响也较小，保证所述阴极层形成平面的平整度，进而使得所述阴极层远离所述阳极层一侧表面不同区域在同一平面内，避免所述阴极层远离所述阳极层一侧的表面的不同区域不在同一平面上而产生光影现象。
在本申请的另一个实施例中，如图9所示，所述第一电极层20位于所述阳极层朝向所述阴极层30的一侧，即所述第一电极层20位于像素定义层50与阴极层30之间。可选的，在本申请实施例中，继续如图9所示，所述第一电极层20与所述阴极层30之间具有第四绝缘层，以利用所述第四绝缘层使得所述阴极层30的形成表面为平整表面。
需要说明的是，当所述第一电极层位于所述发光单元所在膜层与阴极层之间时，如果所述第一电极层设置在所述发光单元的上方，会影响所述发光单元的发光面积，可选的，在上述实施例的基础上，在本申请的一个实施例中，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影不交叠，从而避免所述第一电极层的设置影响所述显示面板的发光区域。
还需要说明的是，在本申请实施例中，由于所述发光单元70需要在阳极单元60和阴极层30的共同控制下才能发光，因此，在本申请实施例中，所述第四绝缘层中具有与像素定义区一一对应的开口，且所述开口与所述像素定义区相贯通，从而使得所述发光单元70部分位于所述像素定义区，与所述阳极单元60电连接，部分位于所述第四绝缘层的开口中，与所述阴极层30电连接。
在上述任一实施例的基础上，在本申请的一个实施例中，如图10所示，所述第一电极层包括多条第一电极线22，所述多个发光单元包括多行发光单元，所述第一电极线22沿行方向X延伸，所述第一电极线22在所述第一基板所在平面上的投影位于相邻行所述发光单元70之间的间隙在所述第一基板所在平面上的投影范围内，从而利用相邻行发光单元之间的行间隙设置所述第一电极层，进而在提高所述显示面板的显示画面的显示亮度均匀性的基础上，不影响所述显示面板的发光区域的面积。
需要说明的是，在本申请实施例中，由于所述第一电极线22位于相邻行发光单元70之间的间隙内，不影响所述发光单元70的发光区域，因此，在本申请实施例中，在列方向Y上，电连接所述第一电极线22与所述阴极层30的第一过孔21可以位于相邻列所述发光单元70之间的空隙，也可以与所述发光单元70位于同一列，本申请对此并不做限定，具体视情况而定。
在上述任一实施例的基础上，在本申请的一个实施例中，如图11和图12所示，所述第一电极层还包括多条第二电极线23，所述第二电极线23沿列方向Y延伸，所述多个发光单元70包括多列发光单元70，所述第二电极线23在所述第一基板所在平面上的投影位于相邻列所述发光单元70之间的间隙在所述第一基板所在平面上的投影范围内，从而利用相邻列发光单元之间的间隙设置所述第一电极层，进而在提高所述显示面板的显示画面的显示亮度均匀性的基础上，不影响所述显示面板的发光区域的面积。
需要说明的是，在上述任一实施例的，所述第一电极层的俯视图可以为多个条形，如图10和图11所示，也可以为网格形，如图12所示，还可以为其他形状，本申请对此并不做限定，具体视情况而定。
在上述任一实施例的基础上，在本申请的一个实施例中，所述第一电极层中电极线的形状为直线，如图10-图12所示，在本申请的另一个实施例中，所述第一电极层中的电极线的形状为折线，如图13所示，在本申请的又一个实施例中，所述第一电极层中电极线的形状还可以为波浪形或其他形状，本申请对此并不做限定，具体视情况而定。
综上可知，本申请实施例所提供的显示面板，除包括第一基板和阴极层外，还包括与所述阴极层并联的第一电极层，从而通过所述第一电极层的部分与所述阴极层位于显示区部分并联，来降低所述阴极层位于所述显示区的部分的电阻，进而降低所述阴极层靠近其信号输入端的部分(即靠近柔性电路板的部分)和远离其信号输入端的部分(即远离柔性电路板的部分)之间的电压差，缓解由于所述阴极层位于显示区的部分不同区域之间压差较大，导致的所述显示面板的显示亮度不均现象，提高所述显示面板的显示质量。
而且，本申请实施例所提供的显示面板，还通过所述第一电极层部分与所述阴极层位于所述边框区的部分并联，来降低所述阴极层位于边框区部分的电阻，从而降低所述阴极层位于所述边框区部分的信号传输损耗，进而降低所述柔性电路板输出的信号传输到所述阴极层位于所述显示区的部分的信号传输损耗，在所述显示面板的显示亮度固定的前提下，降低所述显示面板的功耗。
此外，本申请实施例还提供了一种电子设备，该电子设备的显示屏包括上述任一实施例所提供的显示面板，以提高电子设备的显示画面时，显示亮度的均匀度，同时在所述显示面板的显示亮度固定的前提下，降低所述电子设备的功耗。具体的，在一些实施例中，电子设备可以是手机、平板电脑、桌面型、膝上型、笔记本电脑、超级移动个人计算机(Ultra-mobile Personal Computer，UMPC)、手持计算机、上网本、个人数字助理(Personal Digital Assistant，PDA)、可穿戴电子设备、智能手表、车载显示设备、仪器仪表显示设备等具有显示功能的设备。需要说明的是，在本申请实施例中，所述电子设备可以为折叠显示设备，也可以为非折叠显示设备，本申请对此并不做限定，具体视情况而定。
如图14所示，在本申请的一个实施例中，电子设备可以包括处理器110，外部存储器接口120，内部存储器121，通用串行总线(universal serial bus，USB)接口130，充电管理模块140，电源管理模块141，电池142，天线1，天线2，移动通信模块150，无线通信模块160，音频模块170，扬声器170A，受话器170B，麦克风170C，耳机接口170D，传感器模块180，按键190，马达191，指示器192，摄像头193，显示屏194，以及用户标识模块(subscriber identification module，SIM)卡接口195等。其中传感器模块180可以包括压力传感器180A，陀螺仪传感器180B，气压传感器180C，磁传感器180D，加速度传感器180E，距离传感器180F，接近光传感器180G，指纹传感器180H，温度传感器180J，触摸传感器180K，环境光传感器180L，骨传导传感器180M等。
可以理解的是，本实施例示意的结构并不构成对电子设备的具体限定。在另一些实施例中，电子设备可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
具体的，在本实施例中，电子设备通过GPU，显示屏194，以及应用处理器等实现显示功能。GPU为图像处理的微处理器，连接显示屏194和应用处理器。GPU用于执行数学和几何计算，用于图形渲染。处理器110可包括一个或多个GPU，其执行程序指令以生成或改变显示信息。
显示屏194用于显示图像，视频等。显示屏194包括显示面板。显示面板可以采用液有机发光二极管(organic light-emitting diode，OLED)，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light emitting diode的，AMOLED)，Miniled，MicroLed，Micro-oled等。在一些实施例中，电子设备可以包括1个或N个显示屏194，N为大于1的正整数。
电子设备的显示屏194上可以显示一系列图形用户界面(graphical user interface，GUI)，这些GUI都是该电子设备的主屏幕。一般来说，电子设备的显示屏194的尺寸是固定的，只能在该电子设备的显示屏194中显示有限的控件。控件是一种GUI元素，它是一种软件组件，包含在应用程序中，控制着该应用程序处理的所有数据以及关于这些数据的交互操作，用户可以通过直接操作(direct manipulation)来与控件交互，从而对应用程序的有关信息进行读取或者编辑。一般而言，控件可以包括图标、按钮、菜单、选项卡、文本框、对话框、状态栏、导航栏、Widget等可视的界面元素。例如，在本申请实施例中，显示屏194可以显示虚拟按键(一键编排、开始编排、场景编排)。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本实施例所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种显示面板，其特征在于，包括：
    第一基板；
    位于所述第一基板一侧的第一电极层；
    位于所述第一电极层远离所述第一基板一侧的阴极层；
    其中，所述阴极层覆盖所述显示面板的显示区，并延伸至所述显示面板的边框区；所述第一电极层部分位于所述显示面板的显示区，与所述阴极层位于所述显示区的部分并联，部分位于所述显示面板的边框区，与所述阴极层位于所述边框区的部分并联。
  2. 根据权利要求1所述的显示面板，其特征在于，还包括：
    位于所述阴极层朝向所述第一基板一侧的阳极层；
    位于所述阳极层和所述阴极层之间的像素定义层和发光层，所述像素定义层包括多个像素定义区，所述发光层包括多个发光单元，所述发光单元与所述像素定义区一一对应，位于所述像素定义区内；
    位于所述阳极层远离所述阴极层一侧的控制电路层。
  3. 根据权利要求2所述的显示面板，其特征在于，所述第一电极层位于所述阳极层远离所述阴极层的一侧。
  4. 根据权利要求3所述的显示面板，其特征在于，所述第一电极层位于所述阳极层与所述控制电路层之间。
  5. 根据权利要求4所述的显示面板，其特征在于，所述控制电路层与所述第一电极层之间具有第一绝缘层，所述第一电极层与所述阳极层之间具有第二绝缘层，其中，所述控制电路层通过第一过孔与所述阳极层电连接，所述第一电极层通过第二过孔与所述阴极层电连接。
  6. 根据权利要求5所述的显示面板，其特征在于，所述第二过孔贯穿相邻所述发光单元之间的间隙。
  7. 根据权利要求4所述的显示面板，其特征在于，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影至少部分交叠。
  8. 根据权利要求2所述的显示面板，其特征在于，所述第一电极层位于所述阳极层朝向所述阴极层的一侧。
  9. 根据权利要求8所述的显示面板，其特征在于，所述阳极层与所述第一电极层之间具有第三绝缘层，所述第一电极层与所述阴极层之间具有第四绝缘层。
  10. 根据权利要求9所述的显示面板，其特征在于，所述第一电极层在所述第一基板所在平面上的投影与所述发光层在所述第一基板所在平面上的投影不交叠。
  11. 根据权利要求2-10任一项所述的显示面板，其特征在于，所述第一电极层包括多条第一电极线，所述多个发光单元包括多行发光单元，所述第一电极线沿行方向延伸，所述第一电极线在所述第一基板所在平面上的投影位于相邻行所述发光单元之间的间隙在所述第一基板所在平面上的投影范围内。
  12. 根据权利要求11所述的显示面板，其特征在于，所述第一电极层还包括多条第二 电极线，所述第二电极线沿列方向延伸，所述多个发光单元包括多列发光单元，所述第二电极线在所述第一基板所在平面上的投影位于相邻列所述发光单元之间的间隙在所述第一基板所在平面上的投影范围内。
  13. 根据权利要求2-11任一项所述的显示面板，其特征在于，所述第一电极层中电极线的形状为波浪形或折线形。
  14. 一种电子设备，其特征在于，所述电子设备的显示屏包括权利要求1-13任一项所述的显示面板。
PCT/CN2022/117731 2021-10-12 2022-09-08 一种显示面板及电子设备 WO2023061114A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US18/014,585 US20240188380A1 (en) 2021-10-12 2022-09-08 Display panel and electronic device
EP22818603.7A EP4199129A4 (en) 2021-10-12 2022-09-08 DISPLAY BOARD AND ELECTRONIC DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111188690.4A CN115000123A (zh) 2021-10-12 2021-10-12 一种显示面板及电子设备
CN202111188690.4 2021-10-12

Publications (1)

Publication Number Publication Date
WO2023061114A1 true WO2023061114A1 (zh) 2023-04-20

Family

ID=83018243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/117731 WO2023061114A1 (zh) 2021-10-12 2022-09-08 一种显示面板及电子设备

Country Status (4)

Country Link
US (1) US20240188380A1 (zh)
EP (1) EP4199129A4 (zh)
CN (1) CN115000123A (zh)
WO (1) WO2023061114A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115000123A (zh) * 2021-10-12 2022-09-02 荣耀终端有限公司 一种显示面板及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393188A (zh) * 2014-11-28 2015-03-04 京东方科技集团股份有限公司 一种有机发光二极管显示基板及其制作方法、显示装置
CN110854290A (zh) * 2019-10-29 2020-02-28 深圳市华星光电半导体显示技术有限公司 一种显示面板及其制备方法
CN210349841U (zh) * 2019-09-19 2020-04-17 昆山工研院新型平板显示技术中心有限公司 一种显示面板和显示装置
CN111524956A (zh) * 2020-05-09 2020-08-11 京东方科技集团股份有限公司 一种显示面板及显示装置
CN113270558A (zh) * 2021-05-13 2021-08-17 Tcl华星光电技术有限公司 显示面板及其制作方法、显示装置
CN115000123A (zh) * 2021-10-12 2022-09-02 荣耀终端有限公司 一种显示面板及电子设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101348537B1 (ko) * 2010-09-29 2014-01-07 파나소닉 주식회사 Ｅｌ 표시 패널, ｅｌ 표시 장치 및 ｅｌ 표시 패널의 제조 방법
US9088003B2 (en) * 2013-03-06 2015-07-21 Apple Inc. Reducing sheet resistance for common electrode in top emission organic light emitting diode display
CN108336107A (zh) * 2017-01-19 2018-07-27 京东方科技集团股份有限公司 有机发光二极管（oled）阵列基板及其制备方法、显示装置
CN107978622B (zh) * 2017-11-22 2020-08-11 上海天马有机发光显示技术有限公司 一种阵列基板、显示面板和显示装置
CN112449727A (zh) * 2018-05-09 2021-03-05 深圳市柔宇科技股份有限公司 Oled触控面板、制备方法及触控装置
CN109817671A (zh) * 2019-01-28 2019-05-28 深圳市华星光电半导体显示技术有限公司 一种显示面板
CN109950297B (zh) * 2019-04-12 2021-03-30 云谷（固安）科技有限公司 一种有机发光显示面板及装置
CN110718571A (zh) * 2019-10-14 2020-01-21 京东方科技集团股份有限公司 显示基板及其制备方法、显示装置
CN110752243B (zh) * 2019-10-31 2023-01-10 武汉天马微电子有限公司 一种显示面板、其制作方法及显示装置
CN113437232B (zh) * 2020-03-23 2024-04-23 京东方科技集团股份有限公司 一种显示基板及其制作方法、显示装置
CN111969012A (zh) * 2020-08-18 2020-11-20 合肥维信诺科技有限公司 显示面板及其制备方法
CN112750884B (zh) * 2020-12-30 2022-06-17 湖北长江新型显示产业创新中心有限公司 一种显示面板及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104393188A (zh) * 2014-11-28 2015-03-04 京东方科技集团股份有限公司 一种有机发光二极管显示基板及其制作方法、显示装置
CN210349841U (zh) * 2019-09-19 2020-04-17 昆山工研院新型平板显示技术中心有限公司 一种显示面板和显示装置
CN110854290A (zh) * 2019-10-29 2020-02-28 深圳市华星光电半导体显示技术有限公司 一种显示面板及其制备方法
CN111524956A (zh) * 2020-05-09 2020-08-11 京东方科技集团股份有限公司 一种显示面板及显示装置
CN113270558A (zh) * 2021-05-13 2021-08-17 Tcl华星光电技术有限公司 显示面板及其制作方法、显示装置
CN115000123A (zh) * 2021-10-12 2022-09-02 荣耀终端有限公司 一种显示面板及电子设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4199129A4

Also Published As

Publication number Publication date
EP4199129A1 (en) 2023-06-21
CN115000123A (zh) 2022-09-02
EP4199129A4 (en) 2023-12-20
US20240188380A1 (en) 2024-06-06

Similar Documents

Publication Publication Date Title
US20210193951A1 (en) Display panel, fabrication method, and electronic device
US10879320B2 (en) Organic light-emitting display panel and display apparatus
CN107342370B (zh) 显示面板及显示装置
US9601517B2 (en) Hybrid pixel control circuits for light-emitting diode display
WO2020207402A1 (zh) 显示面板、显示装置及其控制方法
CN112233611B (zh) 显示模组及其制备方法、控制方法和电子设备
CN110176478A (zh) 有机发光二极管显示装置及其制作方法
GB2570566A (en) Display apparatus with integrated touch screen
CN209374036U (zh) 一种显示面板和显示装置
US20210208734A1 (en) Touch display device
CN113823214A (zh) 显示模组和显示设备
CN107623019A (zh) 一种显示面板、其制备方法及显示装置
WO2023061114A1 (zh) 一种显示面板及电子设备
CN118712207A (zh) 一种显示面板及显示装置
CN105185808B (zh) 主动矩阵有机发光二极管触控显示装置
CN113517327B (zh) 显示面板、显示装置及显示方法
US20190187826A1 (en) Touch display substrate, manufacturing method thereof and touch display device
EP3745247A1 (en) Display apparatus, electronic device and screen display control method
CN117590963A (zh) 触摸感测模块及包括触摸感测模块的显示设备
WO2020198915A1 (zh) 显示面板及显示装置
US11404489B2 (en) Display substrate capable of alleviating color separation, and display device
WO2023230898A1 (zh) 触控显示面板和触控显示装置
CN111863842B (zh) 电子设备、显示模组及其显示面板
WO2022246610A1 (zh) 一种显示基板及其驱动方法、显示装置
WO2021189274A1 (zh) 触摸基板及触摸显示装置

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2022818603

Country of ref document: EP

Effective date: 20221216

WWE Wipo information: entry into national phase

Ref document number: 18014585

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22818603

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE