WO2022133881A1 - 一种像素结构和显示面板 - Google Patents

一种像素结构和显示面板 Download PDF

Info

Publication number
WO2022133881A1
WO2022133881A1 PCT/CN2020/138928 CN2020138928W WO2022133881A1 WO 2022133881 A1 WO2022133881 A1 WO 2022133881A1 CN 2020138928 W CN2020138928 W CN 2020138928W WO 2022133881 A1 WO2022133881 A1 WO 2022133881A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
pixel
pixels
control signal
light
Prior art date
Application number
PCT/CN2020/138928
Other languages
English (en)
French (fr)
Inventor
罗琨
江从彪
刘洋
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/138928 priority Critical patent/WO2022133881A1/zh
Priority to CN202080106769.5A priority patent/CN116472573A/zh
Priority to EP20966453.1A priority patent/EP4254388A4/en
Publication of WO2022133881A1 publication Critical patent/WO2022133881A1/zh
Priority to US18/339,398 priority patent/US20230337464A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0804—Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Definitions

  • the present application relates to the field of displays, and in particular, to a pixel structure and a display panel.
  • Liquid crystal display requires a white light backlight source, and the angle of the liquid crystal is controlled by voltage to control the brightness through the liquid crystal.
  • the display principle of the LCD determines that the light emitted by the LCD has directionality, and the brightness is viewed in the vertical direction. Normal, but there will be a large viewing angle color cast when viewing from the side.
  • the pixels of the self-luminous display panel have self-luminous devices, and the emitted light has a consistent distribution pattern at different angles, and there is no color cast when viewed from the side. Therefore, self-luminous display panels have the advantages of high contrast ratio, wide color gamut and wide viewing angle.
  • AMOLED active matrix organic light emitting diode
  • AMOLED display panels also have a foldable and flexible form
  • AMOLED display panels are widely used. applied on mobile phones.
  • the display gray scale of the self-luminous display panel is low, there will be problems such as display color cast and display unevenness, which affects the user experience.
  • Embodiments of the present application provide a pixel structure and a display panel for improving the display color shift and display non-uniformity problems of a self-luminous display panel at a low gray scale.
  • a first aspect of the embodiments of the present application provides a pixel structure, which is applied to a self-luminous display panel, the pixel structure includes: a plurality of sub-pixels, at least one sub-pixel in the plurality of sub-pixels includes a plurality of sub-sub-pixels, A partition layer is arranged between two adjacent sub-sub-pixels in the at least one sub-pixel; the light emission of the plurality of sub-sub-pixels is independently controlled.
  • Self-luminous display panels include self-luminous devices, such as organic light emitting diodes (OLEDs), light-emitting diodes (LEDs), etc.
  • OLEDs organic light emitting diodes
  • LEDs light-emitting diodes
  • the stability of the luminescence spectrum of light-emitting devices is related to the current density flowing through the light-emitting devices.
  • the current density is the ratio of the driving current to the light emitting area of the light emitting device.
  • both OLED and LED devices have different degrees of leakage, and the leakage has no obvious regularity.
  • a sub-pixel is divided into a plurality of sub-sub-pixels, and the light emission of each sub-sub-pixel can be independently controlled. Therefore, the light-emitting area of the sub-pixel can be controlled, so that the sub-pixel can be adjusted according to the size of the display gray scale.
  • the display gray level corresponds to the current density flowing through the light-emitting device, and a lower display gray level corresponds to a smaller current density.
  • the current density flowing through the light-emitting device is relatively low, and only some sub-pixels are controlled to emit light.
  • the density is greater than the current density of the sub-pixel, and the luminescence spectrum of the pixel is more stable when the current density is larger, and the display color is more accurate.
  • the influence of the leakage phenomenon on the display non-uniformity problem is reduced.
  • the problem of display non-uniformity is greatly alleviated, so the pixel structure provided by the embodiment of the present application can improve the display color shift and display non-uniformity problems existing in low grayscale display.
  • the blocking layer is used to block lateral current crosstalk between the two adjacent sub-sub-pixels.
  • the material of the blocking layer includes photoresist.
  • the self-luminous display panel includes: a Micro LED display panel, an OLED display panel, an AMOLED display panel or a passive matrix organic light emitting diode (Passive matrix organic light emitting diode, PMOLED) display panel.
  • a Micro LED display panel an OLED display panel
  • an AMOLED display panel or a passive matrix organic light emitting diode (Passive matrix organic light emitting diode, PMOLED) display panel.
  • PMOLED passive matrix organic light emitting diode
  • the plurality of sub-pixels include: red (red, R) sub-pixels, green (green, G) sub-pixels or blue (blue, B) sub-pixels.
  • the arrangement of the plurality of sub-pixels includes: RGB arrangement, RGBG arrangement or RGB delta arrangement.
  • the first sub-pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel is any one of the plurality of sub-pixels, and the first sub-pixel has The light-emitting area is smaller than the light-emitting area of the second sub-pixel; the first sub-pixel emits light, or the second sub-pixel emits light, or both the first sub-pixel and the second sub-pixel emit light.
  • the first sub-pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel is any one of the plurality of sub-pixels, and the first sub-pixel has The light-emitting area is smaller than the light-emitting area of the second sub-pixel; when the display gray scale of the first sub-pixel is smaller than the first threshold, the first sub-pixel is controlled to emit light.
  • the display gray level of the sub-pixel is lower than the first threshold, the current density corresponding to the sub-pixel is very small, the luminescence spectrum of the sub-pixel is unstable, and problems such as display color shift and display unevenness may occur.
  • control the The first sub-sub-pixel with a smaller light-emitting area among the plurality of sub-sub-pixels is turned on to emit light. Due to the small light-emitting area of the first sub-sub-pixel, the current density of the first sub-sub-pixel is doubled, and the light-emitting spectrum is also more stable. Effectively reduce the display color cast.
  • the second sub-pixel when the display gray scale of the first sub-pixel is greater than or equal to the first threshold and less than a second threshold, the second sub-pixel is controlled to emit light; the second threshold is greater than the first threshold ; When the display gray scale of the first sub-pixel is greater than or equal to the second threshold, control the first sub-pixel and the second sub-pixel to emit light.
  • the display gray level is divided into three segments: less than the first threshold, the first threshold and the second threshold is greater than the second threshold, there are three corresponding schemes for controlling the light-emitting area of the sub-pixels: only the sub-sub-pixel with a small light-emitting area is lighted, only the sub-sub-pixel with a large light-emitting area is lighted, or the two sub-sub-pixels are lighted. The pixels are all lit.
  • the current density corresponding to the sub-pixel is very small, the luminous spectrum of the sub-pixel is unstable, and problems such as display color shift and display unevenness will occur.
  • control the first sub-pixel with a smaller light-emitting area among the multiple sub-pixels to turn on and emit light. Due to the small light-emitting area of the first sub-pixel, the current density of the first sub-pixel is doubled, and the light emission spectrum is also more stable. , which can effectively reduce the display color cast.
  • the display gray scale of the sub-pixel is greater than or equal to the first threshold value and less than the second threshold value
  • the current density of the sub-pixel may exceed the rated current and burn out.
  • the entire sub-pixel (or driving the sub-pixel to emit light in the whole area) may still have the problem of unstable display spectrum.
  • the second sub-pixel with a larger light-emitting area can be lit, which can improve the efficiency of the light-emitting diode.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift.
  • the current density of the diode does not exceed the rated current to avoid the diode from being burned.
  • the display gray scale of the sub-pixel is greater than the second threshold, the light-emitting spectrum of the sub-pixel tends to be stable, and the displayed color is also accurate and uniform.
  • all sub-pixels are controlled to emit light to ensure that each sub-pixel emits light.
  • the current density is within the rated range, realizing full-area lighting of the sub-pixel and improving the display efficiency of the sub-pixel.
  • the first sub-pixel includes a plurality of sub-sub-pixels, and the light-emitting areas of the plurality of sub-sub-pixels increase sequentially.
  • the display gray scale of the first sub-pixel is smaller than the first threshold value , controlling the sub-sub-pixel with the smallest light-emitting area among the plurality of sub-sub-pixels to emit light.
  • the light-emitting area of multiple sub-pixels included in a sub-pixel is usually designed to be gradual, or the light-emitting area of the multiple sub-pixels increases sequentially.
  • the display gray scale of the input sub-pixel is When it is very low, only the sub-pixel with the smallest light-emitting area is controlled to turn on and emit light, which can effectively increase the current density of the light-emitting diode, so that the light-emitting diode can have a stable light-emitting spectrum even when the input display gray scale is relatively low. Reduces display color casts.
  • the first sub-pixel is a G sub-pixel
  • the first threshold is 32.
  • the first threshold corresponding to the display color shift of different types of sub-pixels is different, for example, R
  • the first thresholds corresponding to the display color shift of the sub-pixels, G sub-pixels, and B pixels are different; in addition, the first thresholds corresponding to the display color shift of different types of display panels or the same display panel produced by different manufacturers may also be different.
  • the first sub-pixel is a G sub-pixel
  • the second threshold is 64.
  • the second threshold corresponding to different types of sub-pixels is different.
  • the second thresholds corresponding to the G sub-pixels and the B pixels are different; in addition, the second thresholds corresponding to different types of display panels or the same type of display panels produced by different manufacturers may also be different.
  • the first sub-pixel includes three sub-sub-pixels, the three sub-sub-pixels are from the first sub-sub-pixel to the third sub-sub-pixel, and the light-emitting area increases sequentially.
  • the first sub-pixel is controlled to turn on and emit light; when the display gray level of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, the second sub-pixel is controlled to conduct light.
  • the third sub-pixel is controlled to turn on and emit light; when the display gray level of the first sub-pixel is greater than or equal to the third threshold, Then, all three sub-sub-pixels are controlled to emit light.
  • the display gray scale can be divided into more segments.
  • the division of gray scales is more detailed, and the control of display effects is more flexible and smooth.
  • the angle between the side surface of the blocking layer and the first plane is less than or equal to 90 degrees, and the first plane is parallel to the plane where the surface of the pixel structure is located.
  • the barrier layer is an inverted trapezoid with a gradually increasing cross-section along the height direction, and the width of the upper surface of the barrier layer is greater than the width of the lower surface.
  • the upper surface is the plane away from the substrate, and the lower surface is the plane close to the substrate.
  • the hole injection layers on both sides of the isolation layer may form lateral current crosstalk. Therefore, the angle between the side surface of the isolation layer and the plane of the substrate in the embodiments of the present application is less than or equal to At 90 degrees, a continuous thin film cannot be formed when evaporating organic light-emitting materials, which increases the distance between the hole injection layers on both sides of the isolation layer, and avoids the formation of lateral current crosstalk between the hole injection layers on both sides of the isolation layer.
  • a pixel definition layer is disposed between two adjacent sub-pixels, and the angle between the side surface of the pixel definition layer and the first plane is greater than 90 degrees.
  • the angle between the pixel definition layer and the substrate plane is greater than 90 degrees, so a continuous thin film structure can be formed when the organic light-emitting material is evaporated.
  • Thin film structure, the hole injection layer on the adjacent two sides of the pixel definition layer has a large resistance, and the lateral current crosstalk formed is very weak, which can be basically ignored, and will not destroy the continuity and integrity of the cathode, ensuring the conductivity of the entire cathode surface. .
  • the pixel structure further includes a substrate layer, and the first plane is parallel to the upper surface of the substrate layer.
  • the driving layer is arranged on the upper surface of the substrate layer, and the anode layer is arranged on the upper surface of the driving layer.
  • each sub-sub-pixel in the plurality of sub-sub-pixels includes an anode layer, an organic light-emitting layer and a cathode layer, and the organic light-emitting layer is located between the anode layer and the cathode layer; adjacent The blocking layer is provided between the anode layers of the two sub-sub-pixels; and the blocking layer is provided between the organic light-emitting layers of two adjacent sub-sub-pixels; the plurality of sub-sub-pixels share the same cathode layer.
  • the self-luminous display panel is a micro LED display panel
  • each sub-sub-pixel in the plurality of sub-pixels includes a cathode layer, an organic light-emitting layer and an anode layer, and the organic light-emitting layer is located on the anode between the cathode layer and the cathode layer;
  • the partition layer is arranged between the cathode layers of two adjacent sub-pixels; and the partition layer is arranged between the organic light-emitting layers of the two adjacent sub-pixels; the plurality of Sub-sub-pixels share the same anode layer.
  • the pixel structure further includes: a driving layer on which a driving circuit is disposed, each sub-pixel in the plurality of sub-pixels corresponds to a driving circuit, and the driving circuit is used to independently control the A plurality of sub-sub-pixels emit light;
  • the driving circuit includes a plurality of branch switches, the number of the plurality of branch switches is equal to the number of sub-sub-pixels included in one sub-pixel, and one branch switch corresponds to one sub-sub-pixel ;
  • Each sub-sub-pixel in the plurality of sub-sub-pixels includes a light-emitting diode, and the branch switch is used to control the conduction or disconnection of the light-emitting diode in the corresponding sub-sub-pixel.
  • a branch switch may be composed of one or more switch tubes, and the embodiment of the present application does not limit the number of switch tubes included in the branch switch.
  • the plurality of branch switches include a first branch switch and a second branch switch, the first branch switch corresponds to a first light emitting diode, and the second branch switch corresponds to a second light emitting diode When the first branch switch is turned on, the first light emitting diode is turned on, and when the second branch switch is turned on, the second light emitting diode is turned on.
  • the branch switch is connected in series in the branch of the corresponding light-emitting diode, and the branch switch is specifically used for receiving a control signal, and is turned on or off under the action of the control signal, so as to The light-emitting diode of the branch where the branch switch is located is turned on or off.
  • the plurality of branch switches are connected in parallel
  • the driving circuit further includes a main switch
  • the plurality of branch switches are connected in series with the main switch after being connected in parallel
  • the main switch is connected to the input of the driving circuit
  • the plurality of branch switches are connected to a plurality of control lines in a one-to-one correspondence, and the plurality of branch switches receive control signals from their corresponding scan control lines, and under the action of the control signals on or off.
  • a main switch may be composed of one or more switch tubes, and the embodiment of the present application does not limit the number of switch tubes included in the main switch.
  • the gap between the anodes of two adjacent sub-sub-pixels is 1 ⁇ m to 2 ⁇ m.
  • the gap between the anodes of two adjacent sub-sub-pixels should be greater than or equal to 1 ⁇ m, and the gap between two adjacent sub-sub-pixels is larger than the gap between the anodes of two adjacent sub-sub-pixels.
  • the gap between the two adjacent sub-sub-pixels is the width of the non-emitting portion between the two adjacent sub-sub-pixels after the two adjacent sub-sub-pixels are lit.
  • the blocking layer is an inverted trapezoid with a gradually increasing cross-section along the height direction
  • the area of the organic light-emitting layer of a sub-pixel is smaller than the area of the anode of the sub-pixel, and the light-emitting area of the sub-pixel depends on the size of the sub-pixel.
  • the overlapping area of the organic light-emitting layer and the anode layer, so the light-emitting area of the sub-pixel is slightly smaller than the area of the anode of the sub-pixel.
  • the first sub-pixel corresponds to a first anode
  • the second sub-pixel corresponds to a second anode
  • the ratio of the area of the first anode to the area of the second anode is 1 to 10 .
  • the ratio of the area of the first anode to the area of the second anode can be an integer or a decimal.
  • a second aspect of the embodiments of the present application provides a self-luminous display panel, including the pixel structure in the first aspect and any possible implementation manner thereof.
  • the self-luminous display panel further includes a display driver integrated circuit (Display Driver Integrated Circuits, DDIC).
  • a display driver integrated circuit Display Driver Integrated Circuits, DDIC.
  • a third aspect of an embodiment of the present application provides a display control device, the display control device is used to control a pixel structure in a self-luminous display panel, the pixel structure includes a plurality of sub-pixels, and each sub-pixel in the plurality of sub-pixels includes a plurality of sub-pixels.
  • the display control device includes: a processor and a transmission interface, the processor is used to generate at least one control signal; the processor is also used to control the transmission interface to send the at least one control signal to the first sub-pixel Sub-pixel, the first sub-pixel is any sub-pixel in the plurality of sub-pixels; wherein, the at least one control signal instructs to control one or more sub-sub-pixels in the plurality of sub-sub-pixels included in the first sub-pixel glow.
  • the display control apparatus can generate different control signals, so as to control the plurality of sub-pixels included in the sub-pixels to emit light independently. For example, generating a control signal for controlling the light emission of the first sub-sub-pixel, or generating a control signal for controlling the light-emitting of the second sub-sub-pixel, or generating a control signal for controlling the light-emitting of a local sub-sub-pixel or all sub-sub-pixels .
  • the processor is further configured to determine whether the display gray level of the first sub-pixel is smaller than a first threshold; after the processor determines that the display gray level of the first sub-pixel is smaller than the first sub-pixel
  • the processor is specifically configured to: generate a first control signal, the at least one control signal includes the first control signal; the processor is further configured to control the transmission interface to send the first sub-pixel the A first control signal, the first control signal instructs and controls a first sub-pixel to emit light, and the first sub-pixel is the sub-sub-pixel with the smallest light-emitting area among a plurality of sub-pixels included in the first sub-pixel.
  • the display gray scale of the sub-pixel is lower than the first threshold, the current density corresponding to the sub-pixel is very small, the luminescence spectrum of the sub-pixel is unstable, and problems such as display color shift and display unevenness may occur.
  • the light-emitting area of multiple sub-pixels included in a sub-pixel is usually designed to be gradual, or the light-emitting area of multiple sub-pixels increases sequentially.
  • the display gray scale of the input sub-pixel is very low, only control the light-emitting area.
  • the sub-pixel with the smallest area is turned on to emit light, which can effectively increase the current density of the light-emitting diode, so that the light-emitting diode can have a stable light-emitting spectrum even when the input display gray scale is relatively low, reducing the display color shift.
  • the first sub-pixel includes the first sub-pixel and a second sub-pixel
  • the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel.
  • the processor is specifically configured to: generate a second control signal, where the at least one control signal includes the second control signal ;
  • the processor is also used to control the transmission interface to send the second control signal to the first sub-pixel, and the second control signal indicates to control the second sub-pixel to emit light; wherein, the second threshold value is greater than the first sub-pixel threshold.
  • the display gray scale of the sub-pixel is greater than or equal to the first threshold value and less than the second threshold value
  • the current density of the sub-pixel may exceed the rated current and burn out.
  • the entire sub-pixel (or driving the sub-pixel to emit light in the whole area) may still have the problem of unstable display spectrum.
  • the second sub-pixel with a larger light-emitting area can be lit, which can improve the efficiency of the light-emitting diode.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift. On the other hand, it can also ensure that the current density of the diode does not exceed the rated current to avoid the diode from being burned.
  • the first control signal is used to instruct to turn off switches corresponding to other sub-sub-pixels except the first sub-pixel
  • the second control signal is used to turn off switches other than the second sub-sub-pixel Switches corresponding to other sub-sub-pixels other than the pixel.
  • the processor when the switches corresponding to multiple sub-pixels are turned on by default, when the processor monitors that the display gray scale of the input sub-pixel is lower than the first threshold, it will send a first control signal to turn off the sub-sub-sub-sub-pixel with the smallest light-emitting area. Sub-sub-pixels other than pixels.
  • the processor detects that the display gray level is greater than or equal to the first threshold and is less than the second threshold, it will send a second control signal to turn off other sub-sub-pixels except the second sub-pixel; when the processor detects that the gray-scale display is displayed When the order is greater than the second threshold, no control signal is sent, and switches corresponding to multiple sub-pixels are turned on.
  • the processor when it is determined that the display gray level of the first sub-pixel is greater than or equal to the second threshold, the processor is specifically configured to: generate a third control signal, where the at least one control signal includes the third control signal; the processor is further configured to control the transmission interface to send the third control signal to the first sub-pixel, where the third control signal instructs to control the plurality of sub-sub-pixels to emit light.
  • the first control signal includes an enable signal for turning on the switch corresponding to the first sub-pixel
  • the second control signal includes an enable signal for turning on the switch corresponding to the second sub-pixel
  • the enable signal of the switch, the third control signal includes multiple enable signals for turning on the switches corresponding to the multiple sub-pixels, wherein the multiple enable signals are one-to-one with the multiple sub-pixels correspond.
  • the self-luminous display panel includes an organic light emitting diode OLED display panel, an active matrix organic light emitting diode AMOLED display panel or a micro light emitting diode micro LED display panel.
  • a fourth aspect of the embodiments of the present application provides a display control method.
  • the method is used to control a pixel structure in a self-luminous display panel, where the pixel structure includes a plurality of sub-pixels, and each sub-pixel in the plurality of sub-pixels includes a plurality of sub-pixels.
  • sub-pixel the method includes: generating at least one control signal; sending the at least one control signal to a first sub-pixel, where the first sub-pixel is any sub-pixel in the plurality of sub-pixels; wherein the at least one control signal The signal instructs to control one or more sub-sub-pixels in the plurality of sub-sub-pixels included in the first sub-pixel to emit light.
  • the method further includes: determining whether the display gray level of the first sub-pixel is less than a first threshold; in the case of determining that the display gray level of the first sub-pixel is less than the first threshold, generating a first control signal, the at least one control signal includes the first control signal; sending the first control signal to the first sub-pixel, the first control signal instructing to control the first sub-pixel to emit light, the first sub-pixel
  • the pixel is the sub-sub-pixel with the smallest light-emitting area among the plurality of sub-sub-pixels included in the first sub-pixel.
  • the first sub-pixel includes the first sub-pixel and a second sub-pixel, the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel
  • the method It also includes: when it is determined that the display gray scale of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, generating a second control signal, where the at least one control signal includes the second control signal; to the The first sub-pixel sends the second control signal, and the second control signal instructs to control the second sub-pixel to emit light; wherein, the second threshold is greater than the first threshold.
  • the first control signal is used to instruct to turn off switches corresponding to other sub-sub-pixels except the first sub-pixel
  • the second control signal is used to turn off switches other than the second sub-sub-pixel Switches corresponding to other sub-sub-pixels other than the pixel.
  • the method further includes: in the case of determining that the display gray level of the first sub-pixel is greater than or equal to the second threshold, generating a third control signal, where the at least one control signal includes the third control signal.
  • a control signal sending the third control signal to the first sub-pixel, the third control signal instructing to control the plurality of sub-sub-pixels to emit light.
  • the first control signal includes an enable signal for turning on the switch corresponding to the first sub-pixel
  • the second control signal includes an enable signal for turning on the switch corresponding to the second sub-pixel
  • the enable signal of the switch, the third control signal includes multiple enable signals for turning on the switches corresponding to the multiple sub-pixels, wherein the multiple enable signals are one-to-one with the multiple sub-pixels correspond.
  • the self-luminous display panel includes an organic light emitting diode OLED display panel, an active matrix organic light emitting diode AMOLED display panel or a micro light emitting diode micro LED display panel.
  • the method includes: determining whether a display gray level of a first sub-pixel is less than a first threshold, and the first sub-pixel is any sub-pixel in the plurality of sub-pixels; after determining the first sub-pixel When the display gray scale of the sub-pixel is less than the first threshold, a first control signal is sent to the first sub-pixel, and the first control signal instructs to control the first sub-pixel to emit light, and the first sub-pixel is the first sub-pixel.
  • the first sub-pixel includes the first sub-pixel and a second sub-pixel
  • the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel area
  • the method further includes: sending a second control signal to the first sub-pixel when it is determined that the display gray level of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, The second control signal instructs to control the second sub-pixel to emit light; wherein, the second threshold is greater than the first threshold.
  • the method further includes: sending a third control signal to the first sub-pixel under the condition that the display gray level of the first sub-pixel is determined to be greater than or equal to the second threshold , the third control signal instructs and controls the plurality of sub-pixels to emit light.
  • a fifth aspect of the present application provides a display control apparatus, which includes a functional module for implementing the display control method in the fourth aspect and any possible implementation manner thereof.
  • a sixth aspect of the present application provides a terminal, the terminal including the self-luminous display panel according to the second aspect and any possible implementation manner thereof, and the display according to the third aspect and any possible implementation manner thereof control device.
  • a seventh aspect of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when executed on a computer or processor, the computer or processor causes the computer or processor to perform the fourth aspect or The method in any of its possible embodiments.
  • An eighth aspect of the present application provides a computer program product comprising instructions, which, when run on a computer or processor, causes the computer or processor to execute the fourth aspect or any of its possible implementations as described above. method.
  • FIG. 1 is a schematic cross-sectional view of an exemplary pixel structure provided by an embodiment of the present application
  • FIG. 2 is a perspective view of an exemplary pixel structure provided by an embodiment of the present application.
  • FIG. 3 is a schematic cross-sectional view of an exemplary pixel structure provided by the present application.
  • FIG. 4a is a schematic diagram of an anode layer of a pixel structure provided by an embodiment of the present application.
  • 4b is a schematic cross-sectional view of a pixel structure provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the principle of a driving circuit provided by an embodiment of the present application.
  • FIG. 6 is a schematic cross-sectional view of an exemplary pixel structure provided by an embodiment of the present application.
  • FIG. 7a is an exemplary RGB-arranged display panel provided by an embodiment of the present application.
  • FIG. 7b shows an exemplary RGBG-arranged display panel provided by an embodiment of the present application.
  • FIG. 7c shows an exemplary RGB delta-arranged display panel provided by an embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional view of a pixel structure provided by an embodiment of the present application.
  • FIG. 9 is a display control device provided by an embodiment of the present application.
  • FIG. 10 is a flowchart of a method for display control provided by an embodiment of the present application.
  • FIG. 11 is a flowchart of a method for display control provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a display control device provided by an embodiment of the present application.
  • FIG. 13 is a color coordinate simulation diagram of a green sub-pixel under a low display gray scale provided by an embodiment of the present application.
  • At least one (item) refers to one or more, and "a plurality” refers to two or more.
  • “And/or” is used to describe the relationship between related objects, indicating that there can be three kinds of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B exist , where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are an “or” relationship.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, c can be single or multiple.
  • Self-luminous display panels include self-luminous devices, such as OLED and LED, etc.
  • the stability of the luminescence spectrum of OLED and LED and other light-emitting devices is related to the current density flowing through the light-emitting device.
  • the current density flowing through the light-emitting device is low, The light-emitting spectrum of the light-emitting device is unstable, and the display panel is prone to color cast.
  • both OLED and LED devices have different degrees of leakage, and the leakage has no obvious regularity. Therefore, the effective current flowing through each light-emitting device is uneven, resulting in uneven display brightness of the display panel.
  • the current injected into the pixel When it is smaller, the problem of display unevenness caused by the leakage phenomenon is further exacerbated.
  • the self-luminous display panel in the prior art has problems such as display color cast and display unevenness when the display gray scale is low, which affects the user experience.
  • AMOLED display panels are widely used in smartphones. If the color cast and uneven display problems of AMOLED display panels at low display gray levels can be solved, the user experience will be greatly improved and product competitiveness will be enhanced.
  • Embodiments of the present application provide a pixel structure and a display panel, which can effectively improve the display color shift and display non-uniformity problems of a self-luminous display panel at a low gray scale.
  • the single-color lighting means that each pixel in the display panel inputs the same display grayscale, and the brightness L pixel of any pixel in the display panel can be expressed as formula (1) or Formula (2):
  • L panel represents the brightness of the display panel
  • AR represents the pixel aperture ratio
  • CE represents the current efficiency of the OLED
  • J pixel represents the current density of the sub-pixel.
  • S Anode represents the area of the light-emitting anode
  • S pixel represents the area of the sub-pixel
  • the pixel aperture ratio AR is the ratio of the area of the light-emitting anode to the area of the sub-pixel.
  • I is the drive current of the drive circuit that drives the sub-pixel.
  • CE and S pixel are both fixed values, therefore, the brightness of the display panel depends on the size of the driving current I.
  • the display grayscale input by the sub-pixel is lower, the higher the display brightness of the display panel is.
  • the current density is low, the corresponding current density is smaller, and when the current density is smaller, the luminescence spectrum of the OLED will shift, resulting in the problems of display color shift and display non-uniformity. If the current density of the sub-pixels can be increased, the problems of display color shift and display non-uniformity existing in the self-luminous display panel when the display gray scale is low can be effectively improved.
  • An embodiment of the present application provides a pixel structure, which is applied to a self-luminous display panel, the pixel structure includes: a plurality of sub-pixels, at least one sub-pixel in the plurality of sub-pixels includes a plurality of sub-sub-pixels, the at least one sub-pixel A partition layer is arranged between two adjacent sub-sub-pixels in the device; the light emission of the plurality of sub-sub-pixels is independently controlled.
  • each sub-pixel in the pixel structure includes a plurality of sub-sub-pixels, or some sub-pixels in the pixel structure include a plurality of sub-sub-pixels.
  • FIG. 1 a schematic cross-sectional view of an exemplary pixel structure provided by an embodiment of the present application
  • FIG. 2 a perspective view of an exemplary pixel structure provided by an embodiment of the present application.
  • the pixel structure includes: R sub-pixel, G sub-pixel and B sub-pixel, R sub-pixel, G sub-pixel and B sub-pixel are all divided into two sub-sub-pixels, two adjacent sub-sub-pixels
  • a partition layer is arranged between the pixels, wherein the R sub-pixel includes a first R sub-pixel and a second R sub-pixel, the G sub-pixel includes a first G sub-pixel and a second G sub-pixel, and the B sub-pixel includes The first B sub-sub-pixel and the second B sub-sub-pixel.
  • Each sub-pixel corresponds to a light-emitting device, and the light-emitting device included in the AMOLED pixel structure is an OLED.
  • the R sub-pixel includes a first sub-pixel R1 and a second sub-pixel R2, R1 and Each of R2 includes an anode layer, an organic light-emitting layer and a cathode layer, wherein a barrier layer is arranged between the anode layer of R1 and the anode layer of R2, and a barrier layer is arranged between the organic light-emitting layer of R1 and the organic light-emitting layer of R2, and R1
  • the cathode layer of R1 and R2 are not separated by the barrier layer, that is, R1 and R2 share the cathode layer.
  • a partition layer is provided, the partition layer divides the anode of the R sub-pixel into two anodes, and the areas of the two anodes may be the same or different, and the partition layer separates the organic light-emitting layer of the R sub-pixel. It is also divided into two parts, and the areas of the two organic light-emitting layers can be the same or different.
  • the light-emitting device of each sub-pixel includes an anode layer, an organic light-emitting layer and a cathode layer.
  • the anode layer includes a combination of one or more layers of materials, for example, a combination of indium tin oxide (ITO)+silver Ag layer+ITO layer, a combination of ITO layer+aluminum Al layer+ITO layer, The combination of the Al layer and the ITO layer, and the combination of the Ag layer and the ITO layer.
  • the anode layer is prepared by processes such as physical vapor deposition, sputtering or electron beam evaporation. It should be understood that FIG. 1 only shows several key layers, and the schematic diagram of the pixel structure shown in FIG. 1 should not limit the pixel structure.
  • the organic light-emitting layer may include multiple layers, such as a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer, an electron injection layer, and the like.
  • An organic light-emitting material is arranged on the organic light-emitting layer, for example, a red light-emitting material is arranged on the organic light-emitting layer of the R sub-pixel, a green light-emitting material is arranged on the organic light-emitting layer of the G sub-pixel, and a blue light-emitting material is arranged on the organic light-emitting layer of the B sub-pixel. color luminescent material.
  • the luminescent excitons When holes are injected from the anode layer and electrons are injected from the cathode layer, luminescent excitons are formed on the luminescent material, and the luminescent excitons release energy in the form of light, thereby realizing light emission.
  • the red light-emitting material emits red light
  • the green light-emitting material emits green light
  • the blue light-emitting material emits blue light.
  • the cathode layer is generally made of metal materials such as magnesium-silver alloy, aluminum or silver, and the cathode is usually prepared by processes such as physical vapor deposition, electron beam evaporation, and resistance thermal evaporation.
  • the pixel structure further includes a circular polarizer, which is disposed on the cathode layer of the light emitting device.
  • a pixel definition layer is disposed between two adjacent sub-pixels, and the pixel definition layer is used to block pixel crosstalk between adjacent sub-pixels.
  • the blocking layer is used to block the lateral current crosstalk or pixel crosstalk between adjacent sub-pixels, or in other words, the blocking layer is used to block the OLEDs of two sub-subpixels, preventing the lateral currents of the two adjacent OLEDs from interacting with each other. interference.
  • Pixel crosstalk refers to display abnormalities caused by lateral current crosstalk between adjacent pixels. For example, when a red subpixel is driven to emit light, the adjacent blue and green subpixels are also driven to light up due to the lateral current crosstalk.
  • the material of the isolation layer is the same as the material of the pixel definition layer, for example, photoresist, such as Microchem SU-8 photoresist.
  • the isolation layer and the pixel definition layer are exposed and developed by an etching process, which is after the anode preparation process.
  • FIG. 2 is a simplified perspective view showing only the anode layer, the organic light-emitting layer and the cathode layer.
  • the anode layer represents the plane where the anode is located, and the multiple anodes on the plane are separated by a pixel definition layer or a partition layer.
  • the gray shaded part is the anode, and the two anodes inside the sub-pixel are separated by a pixel definition layer or a partition layer.
  • the partition layer is separated, and the anodes between adjacent sub-pixels are separated by the pixel definition layer, that is, the blank part of the anode layer except the gray shaded part in FIG. 2 is the pixel definition layer or the partition layer.
  • the blank part between the two anodes is the isolation layer; the blank part of the anode between two adjacent sub-pixels is the pixel definition layer.
  • the angle between the side surface of the isolation layer and the first plane is less than or equal to 90 degrees, the first plane is parallel to the plane where the surface of the pixel structure is located, and the first plane is also parallel to the plane of the substrate.
  • the angle between the side surface of the pixel definition layer and the first plane is greater than 90 degrees.
  • FIG. 3 which is a schematic cross-sectional view of a pixel structure provided by the application, it can be seen from FIG. 3 that since the angle between the side surface of the blocking layer and the plane of the substrate is less than or equal to 90 degrees, that is, the upper surface of the blocking layer is The width is greater than the width of the lower surface, the upper surface is a plane away from the substrate, and the lower surface is a plane close to the substrate.
  • the hole injection layers on both sides of the barrier layer may form lateral current crosstalk. Therefore, in the embodiment of the present application, the angle between the side surface of the blocking layer and the plane of the substrate is less than or equal to 90 degrees, and a continuous thin film cannot be formed when the organic light-emitting material is evaporated, which increases the distance between the hole injection layers on both sides of the blocking layer.
  • the hole injection layers on both sides of the isolation layer are prevented from forming lateral current crosstalk.
  • the angle between the pixel definition layer and the plane of the substrate is greater than 90 degrees, so a continuous thin film structure can be formed when the organic light-emitting material is evaporated, as shown in the area 302 in the ellipse in FIG.
  • the width of the pixel definition layer is generally 20 -40 ⁇ m, even if a continuous thin film structure is formed when the organic light-emitting material is evaporated, the hole injection layer on the adjacent sides of the pixel definition layer has a large resistance, and the lateral current crosstalk formed is very weak, which can be ignored, and will not damage the cathode.
  • the continuity and integrity of the cathode ensure the conductivity of the entire surface of the cathode.
  • a driving layer is further disposed between the substrate layer and the anode layer, and the driving layer is not shown in FIG. 3 .
  • the pixel structure further includes: a substrate layer, for example, a flexible substrate (Flexible Substrate) layer or a glass substrate layer.
  • a substrate layer for example, a flexible substrate (Flexible Substrate) layer or a glass substrate layer.
  • the pixel structure further includes: a driving layer arranged on the upper surface of the substrate layer, and a driving circuit is arranged in the driving layer for driving the light emitting device arranged on the driving layer.
  • the driving layer may also be called a thin film transistor (TFT) layer, and the TFT layer includes a plurality of switches, and the anode of each sub-pixel corresponds to a switch , and the turn-on or turn-off of each sub-pixel is independently controlled by its corresponding switch.
  • the switches included in the TFT layer may be composed of one or more switch transistors, and the embodiments of the present application do not limit the number of switch transistors included in the switches in the TFT layer.
  • the TFT layer is provided with a driver circuit, each sub-pixel corresponds to a driver circuit, the driver circuit includes a main switch and a plurality of branch switches, and the number of branch switches included in the driver circuit is equal to the number of branch switches included in the driver circuit.
  • the number of sub-sub-pixels included in the sub-pixels corresponding to the driving circuit, and the branch switches are in one-to-one correspondence with the sub-sub-pixels, and each branch switch is used to control the light emission of the corresponding sub-sub-pixels.
  • the switch can be, for example, an N-type TFT, a P-type TFT, or the like.
  • each sub-pixel includes a light-emitting diode, such as an OLED
  • a branch switch is connected in series with the light-emitting diode in the sub-pixel in the corresponding branch, and the branch switch is used to control the corresponding sub-pixel. turn-on or turn-off of the light-emitting diode.
  • the branch switch receives a control signal from a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a special-purpose processor, a controller or a DDIC, and is turned on or off under the action of the control signal, thereby The light-emitting diode of the branch where the branch switch is located is turned on or off.
  • CPU Central Processing Unit
  • a main switch or a branch switch may be composed of one or more switch tubes, and the embodiment of the present application does not limit the number of switch tubes included in the main switch or the branch switch.
  • the plurality of branch switches are connected in parallel, and the plurality of branch switches connected in parallel are connected in series with the aforementioned main switch.
  • the main switch is connected to the input terminal of the driving circuit, and the input terminal is used for inputting the driving voltage, and the driving voltage is connected to the driving circuit.
  • the display gray levels of the corresponding sub-pixels are related.
  • each sub-pixel includes 3 sub-pixels
  • the driving circuit corresponding to the sub-pixel includes 1 main switch and 3 branch switches.
  • the main switch It is turned on under the action of the driving voltage. If the states of the three branch switches are turned on, off, and turned off under the action of their respective control signals, the driving current flows through the first branch after flowing through the main switch. switch and drive the first sub-subpixel to emit light.
  • the first sub-pixel includes a plurality of sub-pixels, and the first sub-pixel is any sub-pixel in the pixel structure.
  • the display gray scale input to the first sub-pixel is smaller than the first threshold , only the first sub-sub-pixel can be controlled to emit light, and the first sub-sub-pixel is the sub-sub-pixel with the smallest light-emitting area among the plurality of sub-sub-pixels.
  • the light-emitting area of multiple sub-pixels included in a sub-pixel is usually designed to be gradual, or the light-emitting area of the multiple sub-pixels increases sequentially.
  • the display gray scale of the input sub-pixel is When it is very low, only the sub-pixel with the smallest light-emitting area is controlled to turn on and emit light, which can effectively increase the current density of the light-emitting diode, so that the light-emitting diode can have a stable light-emitting spectrum even when the input display gray scale is relatively low. Reduces display color casts.
  • all sub-sub-pixels in the first sub-pixel are controlled to emit light.
  • the display gray scale of the sub-pixel is greater than the second threshold, the light-emitting spectrum of the sub-pixel tends to be stable, and the displayed color is also accurate and uniform.
  • all sub-pixels are controlled to emit light to ensure that each sub-pixel emits light.
  • the current density is within the rated range, realizing full-area lighting of the sub-pixel and improving the display efficiency of the sub-pixel.
  • the first sub-pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel is any one of the plurality of sub-pixels, and the light-emitting area of the first sub-pixel is smaller than The light-emitting area of the second sub-pixel; when the display gray scale of the first sub-pixel is smaller than the first threshold, the first sub-pixel is controlled to emit light.
  • the second sub-pixel when the display gray scale of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, the second sub-pixel is controlled to emit light; the second threshold is greater than the first threshold; when the first sub-pixel is When the display gray scale of the pixel is greater than or equal to the second threshold, the first sub-pixel and the second sub-pixel are controlled to emit light.
  • the display gray level is divided into three segments: less than the first threshold, the first threshold and the second threshold If the value is greater than the second threshold, there are three corresponding schemes for controlling the light-emitting area of the sub-pixel: only the sub-sub-pixel with a small light-emitting area is lighted, only the sub-sub-pixel with a large light-emitting area is lighted, or the two sub-sub-pixels are lighted.
  • the current density corresponding to the sub-pixel is very small, the luminous spectrum of the sub-pixel is unstable, and problems such as display color shift and display unevenness will occur.
  • the display gray scale of the sub-pixel is greater than or equal to the first threshold value and less than the second threshold value
  • the current density of the sub-pixel may exceed the rated current and burn out.
  • the entire sub-pixel (or driving the sub-pixel to emit light in the whole area) may still have the problem of unstable display spectrum.
  • the second sub-pixel with a larger light-emitting area can be lit, which can improve the efficiency of the light-emitting diode.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift.
  • the current density of the diode does not exceed the rated current to avoid the diode from being burned.
  • the display gray scale of the sub-pixel is greater than the second threshold, the light-emitting spectrum of the sub-pixel tends to be stable, and the displayed color is also accurate and uniform.
  • all sub-pixels are controlled to emit light to ensure that each sub-pixel emits light.
  • the current density is within the rated range, realizing full-area lighting of the sub-pixel and improving the display efficiency of the sub-pixel.
  • the first sub-pixel is a G sub-pixel
  • the first threshold is 32
  • the second threshold is 64.
  • the luminescence spectrum of the sub-pixel is unstable, and a display color shift will occur.
  • the first threshold corresponding to the display color shift of different types of sub-pixels is different, for example, R
  • the first thresholds corresponding to the display color shift of the sub-pixels, G sub-pixels, and B pixels are different; in addition, the first thresholds corresponding to the display color shift of different types of display panels or the same display panel produced by different manufacturers may also be different.
  • the input gray level of the sub-pixel is greater than the second threshold, the luminescence spectrum of the sub-pixel tends to be stable, and the displayed color is accurate and uniform.
  • Different types of sub-pixels correspond to different second thresholds, such as R sub-pixel, G sub-pixel
  • the second threshold value corresponding to the B pixel is different; in addition, the second threshold value corresponding to different types of display panels or the same type of display panels produced by different manufacturers may also be different.
  • FIG. 4a a schematic cross-sectional view of a pixel structure provided by an embodiment of the present application
  • FIG. 4b is a schematic cross-sectional view of a pixel structure provided by an embodiment of the present application
  • FIG. 5 is a drive provided by an embodiment of the present application.
  • a schematic diagram of the circuit, the driving circuit is the driving circuit corresponding to the pixel structure shown in FIG. 4a and FIG. 4b.
  • the sub-pixel includes two sub-pixels: a first sub-pixel and a second sub-pixel, the sub-pixel includes a first anode and a second anode, wherein the first anode is the anode of the first sub-pixel, and the second sub-pixel includes a first anode and a second anode.
  • the anode is the anode of the second sub-pixel, a gap exists between the first anode and the second anode, and a blocking layer is arranged in the gap.
  • the gap between the first anode and the second anode is 1 ⁇ m to 2 ⁇ m. It should be understood that if the anode of the sub-pixel is divided into more anodes, the gap between two adjacent anodes is 1 to 2 ⁇ m. .
  • the anode of the sub-pixel is divided into two anodes with smaller areas, and the area ratio of the two anodes can be any integer or decimal between 1 and 10,
  • the area of the entire dotted frame is the area of the sub-pixel.
  • the aperture ratio of the pixel is the ratio of the area of the anode to the area of the pixel.
  • the aperture ratio of the corresponding sub-pixel is about Between 1% and 20%. If the area ratio of the two anodes is too large, the area of the second anode will be too small, which increases the difficulty of fabrication; if the area ratio of the two anodes is too small, the display effect of low gray scale will be poor.
  • a gap with a width of 1-2 ⁇ m is etched in the anode of the sub-pixel, and then the gap is filled with materials such as photoresist to form a barrier layer, thereby forming two independent anode.
  • the two anodes are respectively connected to the driving circuit in the driving layer through perforated leads. Specifically, the two anodes are respectively connected to the switches in the driving layer through through-hole leads.
  • the angle between the side surface of the barrier layer and the surface of the substrate is less than 90 degrees. Therefore, as the height of the barrier layer gradually increases, the cross-section of the barrier layer also increases gradually.
  • the area of the organic light-emitting layer is smaller than that of the anode, and the light-emitting area of the sub-pixel depends on the overlapping area of the anode and the organic light-emitting layer, so the light-emitting area of the sub-pixel is slightly smaller than that of the anode.
  • the part that does not emit light between the two sub-sub-pixels is the gap between the two sub-sub-pixels, and the gap between the two adjacent sub-sub-pixels is greater than A gap between the two anodes corresponding to the two sub-pixels.
  • Two sides of the sub-pixels are respectively provided with a pixel definition layer, the pixel definition layer is used for separating adjacent sub-pixels, and the angle between the side surface of the pixel definition layer and the surface of the substrate is greater than 90 degrees.
  • FIG. 5 shows a schematic schematic diagram of the driving circuit corresponding to the pixel structure shown in FIG. 4a
  • the driving circuit includes: a first branch switch 501, a second branch switch 502, a main switch 503, a first light emitting diode 504 and The second light-emitting diode 505, wherein the first light-emitting diode 504 corresponds to the first sub-pixel, and the second light-emitting diode 505 corresponds to the second sub-pixel.
  • the light-emitting area of the first light-emitting diode 504 is smaller than the second The light-emitting area of the light-emitting diode 505 .
  • the first branch switch 501 is connected in series with the first light emitting diode 504, the second branch switch 502 is connected in series with the second light emitting diode 505, and the first branch switch 501 is used to control the on or off of the first light emitting diode 504.
  • the two-way switch 502 is used to control the turn-on or turn-off of the second light emitting diode 505 .
  • first branch switch 501, the second branch switch 502 and the main switch 503 are arranged in the driving layer
  • first light emitting diode 504 and the second light emitting diode 505 are arranged in the anode layer, the organic light emitting layer and the cathode layer
  • both the first light emitting diode 504 and the second light emitting diode 505 include an anode layer, an organic light emitting layer and a cathode layer.
  • the anode through-hole leads of the first light emitting diode 504 and the second light emitting diode 505 are respectively connected to the first branch switch 501 and the second branch switch 502 in the driving layer.
  • the main switch 503, the first branch switch 501 and the second branch switch 502 all include a gate, a source and a drain, and the gate of the main switch is connected to the driving voltage Vdata, which is related to the sub-pixel's The corresponding gray scales are shown;
  • the source of the main switch is connected to the high voltage ELVDD, exemplarily, ELVDD is the device voltage of electroluminescence, the ELVDD can be between 3.0V and 8.0V, and the drain of the main switch is connected to the first branch
  • the gate of the first branch switch 501 is connected to the first control signal EM1, or, it can also be said that the gate of the first branch switch 501 is used for Receive the first control signal EM1;
  • the drain of the first branch switch 501 is connected to the first end (anode end) of the first light emitting diode 504, and the second end (cathode end) of the first light emitting diode
  • the control signals EM1 and EM2 are sent by the CPU, the general-purpose processor, the special-purpose processor, the controller or the DDIC according to the display gray scale of the sub-pixels.
  • the control signals EM1 and EM2 may be signals that control the switch to be turned on, or may be signals that control the switch to be turned off.
  • the main switch 503, the first branch switch 501 and the second branch switch 502 in the driving circuit may be N-type TFTs or P-type TFTs.
  • the processor or the DDIC can monitor the display gray level input to the sub-pixel, and when the display gray level is lower than a first threshold, for example, the first threshold is 32, the processor or The DDIC sends a first control signal to the driving circuit in the pixel structure, the first control signal instructs to turn on the first branch switch 501 and turn off the second branch switch 502, so that only the first light-emitting area with a smaller light-emitting area is driven.
  • the diode 504 emits light, the current density of the OLED is doubled, the stability of the light emission spectrum is improved, and the display color shift is reduced.
  • the first control signal includes EM1 and EM2, EM1 is used to turn on the first branch switch 501 , and EM2 is used to turn off the second branch switch 502 .
  • EM1 is used to turn on the first branch switch 501
  • EM2 is used to turn off the second branch switch 502 .
  • a first control signal is sent to the driving circuit to disconnect or turn off the first control signal.
  • Two branch switches 502 In an optional situation, if the two branch switches are turned off by default, when the processor or the DDIC determines that the displayed gray scale is lower than the first threshold, a first control signal is sent to the driving circuit to turn on the first branch Road switch 501.
  • the processor or the DDIC determines that the display gray level is greater than or equal to the first threshold and less than the second threshold, exemplarily, the second threshold is 64, and the processor or the DDIC sends a second control signal to the driving circuit in the pixel structure, the The second control signal instructs to turn off the first branch switch 501 and turn on the second branch switch 502, so that only the second light emitting diode 505 with a larger light emitting area is driven to emit light.
  • the current density of the first light-emitting diode 504 with a small light-emitting area can be prevented from being burned by exceeding the rated current.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift.
  • the processor or the DDIC determines that the display gray scale is greater than or equal to the second threshold, the processor or the DDIC sends a third control signal to the driving circuit in the pixel structure, the third control signal instructing to turn on the first branch switch 501 and the second branch switch 501
  • the branch switch 502 drives both the first light emitting diode 504 and the second light emitting diode 505 to emit light.
  • the two light-emitting diodes can share a larger working current, ensure that the current density of each sub-pixel is within the rated range, realize full-area lighting of the sub-pixel, and improve the display efficiency of the sub-pixel.
  • the sub-pixels may also be divided into two or more sub-sub-pixels, and the light-emitting areas of the plurality of sub-sub-pixels gradually increase and increase sequentially.
  • FIG. 6 a schematic cross-sectional view of an exemplary pixel structure provided in an embodiment of the present application.
  • one sub-pixel includes three sub-pixels, a partition layer is arranged between two adjacent sub-pixels, and a pixel definition layer is arranged between two adjacent sub-pixels.
  • the anode of the sub-pixel is divided into a first anode, a second anode and a third anode, and the areas of the first anode, the second anode and the third anode increase sequentially.
  • FIG. 6 only shows the substrate layer and the anode layer, a driving layer is further provided between the substrate layer and the anode layer, and the anode layer is further provided with at least an organic light-emitting layer and a cathode layer.
  • the driving circuit of the pixel structure corresponding to FIG. 6 includes a main switch and three branch switches, each branch switch corresponds to a sub-pixel, and each sub-pixel is turned on or off under the action of the corresponding branch switch open.
  • the first sub-pixel When the display gray level of the first sub-pixel is lower than the first threshold, the first sub-pixel is controlled to turn on and emit light; when the display gray level of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, the first sub-pixel is controlled to emit light.
  • the second sub-pixel emits light; when the display gray level of the first sub-pixel is greater than or equal to the second threshold and less than the third threshold, the third sub-pixel is controlled to emit light; when the display gray level of the first sub-pixel is greater than or equal to the third threshold , then all three sub-pixels are controlled to emit light.
  • only the first sub-sub-pixel and the second sub-sub-pixel can be controlled to emit light, or only the second sub-sub-pixel and the third sub-sub-pixel can be controlled to emit light according to the display gray level.
  • the display gray scale can be divided into more segments.
  • the division of gray scales is more detailed, and the control of display effects is more flexible and smooth.
  • the pixel structure shown in FIG. 1 to FIG. 6 is applied to a self-luminous display panel.
  • An embodiment of the present application further provides a self-luminous display panel, and the self-luminous display panel includes the pixel structure provided by the embodiment of the present application.
  • all the pixels included in the self-luminous display panel are the pixel structures provided by the embodiments of the present application, or, the pixel portion in the self-luminous display panel is the pixel structures provided by the embodiments of the present application .
  • the self-luminous display panel may include: a Micro LED display panel, an OLED display panel, an AMOLED display panel or a PMOLED display panel.
  • the display panel can be used to make display screens of smart terminals such as mobile phones, smart large screens, televisions, personal computers, tablet computers, smart refrigerators, and smart wearable devices.
  • the plurality of sub-pixels included in the pixel structure include R sub-pixels, G sub-pixels and B sub-pixels, and the arrangement of the plurality of sub-pixels includes RGB arrangement, RGBG arrangement or RGB delta arrangement. As shown in FIG.
  • each pixel in an exemplary display panel with RGB arrangement provided by the embodiment of the present application, each pixel includes three sub-pixels, which are a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, respectively .
  • each pixel includes two sub-pixels, and the pixel 1 in the a-th row in FIG. 7b includes two sub-pixels R and G , pixel 2 includes two sub-pixels B and G, pixel 3 includes two sub-pixels R and G, and pixel 4 includes two sub-pixels B and G, which alternately appear in combination of RG and BG.
  • FIG. 7b an exemplary RGBG-arranged display panel provided by an embodiment of the present application, each pixel includes two sub-pixels, and the pixel 1 in the a-th row in FIG. 7b includes two sub-pixels R and G , pixel 2 includes two sub-pixels B and G, pixel 3 includes two sub-pixels R and G, and pixel 4 includes two sub-pixels B and
  • each pixel in an exemplary display panel with RGB delta arrangement provided by the embodiment of the application, each pixel includes three RGB sub-pixels, and two adjacent pixels have a shared sub-pixel, as shown in FIG. 7c
  • pixel 1 and pixel 2 share a blue sub-pixel B2
  • pixel 2 and pixel 3 share a red sub-pixel R2 and a green sub-pixel G3.
  • FIG. 8 it is a schematic cross-sectional view of a pixel structure provided by an embodiment of the present application.
  • the pixel structure is applied to a micro LED display panel.
  • a single sub-pixel is provided with multiple micro LEDs of different sizes.
  • the light-emitting area of the sub-pixel is controlled, which not only ensures the improvement of the current density of the sub-pixel, but also ensures that the light-emitting area of the sub-pixel is improved. Ensure that the current density of each micro LED does not exceed the rated current density.
  • the pixel structure includes:
  • the substrate layer 801 for example, the substrate layer may be a flexible substrate, a glass substrate or a silicon-based backplane.
  • a plurality of micro LEDs 807-810 are disposed on the anode layer, and the plurality of micro LEDs 807-810 have different sizes or light-emitting areas.
  • the micro LED fabrication process is a traditional III-V semiconductor growth process.
  • a planarization layer 806 is also disposed between two adjacent micro LEDs.
  • a coplanar cathode 811 which is shared by a plurality of micro LEDs 807-810.
  • the pixel structure also includes a pixel definition layer 812 that limits the size of the sub-pixels and prevents optical crosstalk between adjacent sub-pixels. It should be understood that only one sub-pixel is shown in FIG. 8 , and the sub-pixel internally includes a plurality of sub-sub-pixels, and each sub-sub-pixel corresponds to one micro LED.
  • 802-805 near the substrate layer 801 are a plurality of cathodes with different areas, and 811 away from the substrate layer 801 is a coplanar anode.
  • a display control device 900 is provided in an embodiment of the present application.
  • the display control device is used to control a pixel structure in a self-luminous display panel.
  • the pixel structure includes a plurality of sub-pixels.
  • Each sub-pixel includes a plurality of sub-sub-pixels, for example, any of the pixel structures provided in FIG. 1 to FIG. 6 and FIG. 8 in the embodiments of the present application, and the display control apparatus 900 includes a processor and a transmission interface.
  • the display control device may be a processor chip in the whole machine or a whole machine including the processor chip.
  • the processor may include, for example, a general-purpose central processing unit (Central Processing Unit, CPU), a special-purpose processing device integrated on a system on a chip (System on Chip, SOC), such as an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), field-available Field Programmable Gate Array (FPGA) or Digital Signal Processor (DSP), dedicated video or graphics processor, Graphics Processing Unit (GPU), Application Processor (Application Processor, AP) and neural network processing unit (Neural-network Processing Unit, NPU) and so on.
  • the processor may also be a DDIC.
  • the CPU may be a single-core CPU, a multi-core CPU, or alternatively, the CPU may be a processor group composed of multiple processors, and the multiple processors are coupled to each other through one or more buses.
  • the transmission interface may be an interface for receiving and sending data of the processor chip, and the transmission interface usually includes a variety of interfaces.
  • the transmission interface may include an Inter-Integrated Circuit (I2C). Interface, Serial Peripheral Interface (SPI), Universal Asynchronous Receiver-Transmitter (UART) interface, General-purpose input/output (GPIO) interface, etc. It should be understood that these interfaces may implement different functions by multiplexing the same physical interface.
  • the transmission interface may further include High Definition Multimedia Interface (HDMI), V-By-One interface, Embedded Display Port (eDP), mobile industry processing Interface (Mobile Industry Processor Interface, MIPI) or Display Port (DP) and so on.
  • HDMI High Definition Multimedia Interface
  • eDP Embedded Display Port
  • MIPI Mobile Industry Processor Interface
  • DP Display Port
  • This processor is used to:
  • the control transmission interface sends at least one control signal to the first sub-pixel, where the first sub-pixel is any one of the plurality of sub-pixels.
  • the at least one control signal instructs to control one or more sub-sub-pixels in the plurality of sub-sub-pixels included in the first sub-pixel to emit light.
  • the processor is further configured to determine whether the display gray level of the first sub-pixel is smaller than the first threshold; if the processor determines that the display gray level of the first sub-pixel is smaller than the first threshold, The processor is specifically configured to: generate a first control signal, at least one control signal includes the first control signal; the processor is further configured to control the transmission interface to send the first control signal to the first sub-pixel, the first control signal instructs the control of the first sub-pixel A sub-sub-pixel emits light, and the first sub-pixel is the sub-sub-pixel with the smallest light-emitting area among the plurality of sub-sub-pixels included in the first sub-pixel.
  • the first sub-pixel includes a first sub-pixel and a second sub-pixel
  • the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel
  • the processor is specifically configured to: generate a second control signal, at least one control signal includes the second control signal; the processor is further configured to control the transmission
  • the interface sends a second control signal to the first sub-pixel, and the second control signal instructs to control the second sub-pixel to emit light; wherein, the second threshold is greater than the first threshold.
  • the processor when it is determined that the display gray level of the first sub-pixel is greater than or equal to the second threshold, the processor is specifically configured to: generate a third control signal, and at least one control signal includes the third control signal The processor is further configured to control the transmission interface to send a third control signal to the first sub-pixel, and the third control signal instructs and controls the plurality of sub-sub-pixels to emit light.
  • the first control signal includes an enable signal for turning on the switch corresponding to the first sub-pixel
  • the second control signal includes an enable signal for turning on the switch corresponding to the second sub-pixel
  • the third control signal includes a plurality of enable signals for turning on switches corresponding to the plurality of sub-sub-pixels, wherein the plurality of enable signals are in one-to-one correspondence with the plurality of sub-sub-pixels.
  • the processor is used to:
  • the first sub-pixel determines whether the display gray level of the first sub-pixel is less than a first threshold, and the first sub-pixel is any sub-pixel in a plurality of sub-pixels of the pixel structure;
  • the processor can monitor the display grayscale of each sub-pixel input to the display panel, and when the processor detects that the display grayscale is lower than the first threshold, it determines that the current display grayscale of the subpixel is low, and there may be a display color partial.
  • the processor determines that the display gray scale of the first sub-pixel is smaller than the first threshold, the processor is further configured to control the transmission interface to send a first control signal to the first sub-pixel, where the first control signal indicates to control the first sub-pixel
  • the first sub-pixel is the sub-sub-pixel with the smallest light-emitting area among the plurality of sub-sub-pixels included in the first sub-pixel.
  • the processor is further configured to: :
  • the control transmission interface sends a second control signal to the first sub-pixel, and the second control signal indicates to control the second sub-pixel emitting light; wherein the second threshold is greater than the first threshold.
  • the processor determines that the display gray level of the first sub-pixel is greater than or equal to the second threshold, the processor is further configured to control the transmission interface to send a third control signal to the first sub-pixel, where the third control signal instructs the control of multiple sub-pixels Pixels all emit light.
  • the light-emitting area of multiple sub-pixels included in a sub-pixel is usually designed to be gradual, or the light-emitting area of the multiple sub-pixels increases sequentially.
  • the display gray scale of the input sub-pixel is When it is very low, only the sub-pixel with the smallest light-emitting area is controlled to turn on and emit light, which can effectively increase the current density of the light-emitting diode, so that the light-emitting diode can have a stable light-emitting spectrum even when the input display gray scale is relatively low. Reduces display color casts.
  • the display gray scale of the sub-pixel is greater than or equal to the first threshold value and less than the second threshold value
  • the current density of the sub-pixel may exceed the rated current and burn out.
  • the entire sub-pixel (or driving the sub-pixel to emit light in the whole area) may still have the problem of unstable display spectrum.
  • the second sub-pixel with a larger light-emitting area can be lit, which can improve the efficiency of the light-emitting diode.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift.
  • the current density of the diode does not exceed the rated current to avoid the diode from being burned.
  • the display gray scale of the sub-pixel is greater than the second threshold, the light-emitting spectrum of the sub-pixel tends to be stable, and the displayed color is also accurate and uniform.
  • all sub-pixels are controlled to emit light to ensure that each sub-pixel emits light.
  • the current density is within the rated range, realizing full-area lighting of the sub-pixel and improving the display efficiency of the sub-pixel.
  • the first control signal is used to instruct to turn off switches corresponding to other sub-sub-pixels except the first sub-pixel
  • the second control signal is used to turn off switches other than the second sub-sub-pixel. Switches corresponding to other sub-pixels.
  • the switches corresponding to multiple sub-pixels are turned on by default, and when the processor detects that the display gray scale of the input sub-pixel is lower than the first threshold, it will send a control signal to turn off the sub-pixel except the sub-pixel with the smallest light-emitting area. other sub-subpixels. When the processor determines that the displayed gray level is greater than the second threshold, no control signal is sent, and the switches corresponding to the plurality of sub-pixels are all turned on.
  • the switches corresponding to the plurality of sub-sub-pixels are turned off by default
  • the first control signal includes an enable signal for turning on the switches corresponding to the first sub-sub-pixels
  • the second control signal includes an enable signal for turning on the switches corresponding to the first sub-sub-pixels.
  • the third control signal includes a plurality of enable signals for turning on the switches corresponding to the plurality of sub-sub-pixels, wherein the plurality of enable signals and the plurality of sub-sub-pixels The sub-pixels are in one-to-one correspondence.
  • the display control device 900 further includes: a memory, a microcontroller (Microcontroller Unit, MCU), a security subsystem, a WLAN subsystem, a bus, and the like. Although not shown in FIG. 9 , the display control apparatus 900 may further include other subsystems such as a power management subsystem, a clock management subsystem, and a power consumption management subsystem.
  • the connectors include various types of interfaces, transmission lines or buses. These interfaces are usually electrical communication interfaces, but may also be mechanical interfaces or other forms of interfaces. , which is not limited in this embodiment.
  • the type of memory may include, for example, static random-access memory (SRAM) and read-only memory (Read-Only Memory, ROM), and the memory may also include power-down volatile memory (volatile memory). ), such as random access memory (Random Access Memory, RAM), etc.
  • SRAM static random-access memory
  • ROM read-only memory
  • volatile memory volatile memory
  • RAM random access memory
  • the above-mentioned parts are integrated on the same chip; in another optional case, the memory may be an independent chip.
  • the security subsystem can be used to implement related encryption and decryption algorithms for security authentication. It should be understood that encryption and decryption algorithms related to security authentication are usually implemented in hardware, so that the security of the encryption algorithm can be further improved.
  • the WLAN subsystem may include, for example, a radio frequency (Radio Frequency, RF) circuit and a baseband.
  • RF Radio Frequency
  • the chip involved in the embodiments of this application is a system fabricated on the same semiconductor substrate by an integrated circuit process, also called a semiconductor chip, which can be fabricated on a substrate (usually a semiconductor such as silicon) using an integrated circuit process A collection of integrated circuits formed on a material), the outer layers of which are usually encapsulated by a semiconductor encapsulation material.
  • the integrated circuit may include various functional devices, each of which includes a logic gate circuit, a metal-oxide-semiconductor (Metal-Oxide-Semiconductor, MOS) transistor, a bipolar transistor or a diode and other transistors, as well as capacitors, resistors, etc. or other components such as inductors.
  • MOS metal-oxide-semiconductor
  • the processor is configured to invoke the program codes stored in the memory to implement the above-mentioned corresponding functions.
  • the high memory can be the memory on the processor chip, or it can be the memory outside the processor chip.
  • the form of the off-chip memory can include: non-power-down volatile memory, such as EMMC (Embedded Multi Media Card, embedded multimedia card). ), UFS (Universal Flash Storage), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other Optical disc storage, optical disc storage (including compact disc, laser disc, digital versatile disc or Blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage devices, etc.
  • a display control method is provided in an embodiment of the present application.
  • the method is used to control a pixel structure in a self-luminous display panel.
  • the pixel structure includes a plurality of sub-pixels, and each sub-pixel in the plurality of sub-pixels includes For a plurality of sub-pixels, for example, any of the pixel structures provided in FIG. 1 to FIG. 6 and FIG. 8 in the embodiments of the present application, the method includes:
  • the at least one control signal instructs to control one or more sub-sub-pixels in the plurality of sub-sub-pixels included in the first sub-pixel to emit light.
  • the method further includes: determining whether the display gray level of the first sub-pixel is less than a first threshold; in the case of determining that the display gray level of the first sub-pixel is less than the first threshold, generating a first control signal, at least one control signal includes a first control signal; the first control signal is sent to the first sub-pixel, the first control signal instructs to control the first sub-sub-pixel to emit light, and the first sub-pixel is a plurality of sub-pixels included in the first sub-pixel. The sub-sub-pixel with the smallest light-emitting area among the sub-sub-pixels.
  • the first sub-pixel includes a first sub-pixel and a second sub-pixel
  • the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel
  • the method further includes: When it is determined that the display gray scale of the first sub-pixel is greater than or equal to the first threshold and less than the second threshold, a second control signal is generated, and at least one control signal includes the second control signal; and the second control signal is sent to the first sub-pixel , the second control signal indicates to control the second sub-pixel to emit light; wherein, the second threshold is greater than the first threshold.
  • the first control signal is used to instruct to turn off switches corresponding to other sub-sub-pixels except the first sub-pixel
  • the second control signal is used to turn off switches other than the second sub-sub-pixel. Switches corresponding to other sub-pixels.
  • the method further includes: when it is determined that the display gray level of the first sub-pixel is greater than or equal to the second threshold, generating a third control signal, and at least one control signal includes a third control signal;
  • the first sub-pixel sends a third control signal, and the third control signal instructs and controls the plurality of sub-sub-pixels to emit light.
  • the first control signal includes an enable signal for turning on the switch corresponding to the first sub-pixel
  • the second control signal includes an enable signal for turning on the switch corresponding to the second sub-pixel
  • the third control signal includes a plurality of enable signals for turning on switches corresponding to the plurality of sub-sub-pixels, wherein the plurality of enable signals are in one-to-one correspondence with the plurality of sub-sub-pixels.
  • a display control method is provided in an embodiment of the present application.
  • the method is used to control a pixel structure in a self-luminous display panel.
  • the pixel structure includes a plurality of sub-pixels, and each sub-pixel in the plurality of sub-pixels includes For a plurality of sub-pixels, for example, any of the pixel structures provided in FIG. 1 to FIG. 6 and FIG. 8 in the embodiments of the present application, the method includes:
  • the method further includes:
  • the first sub-pixel includes the first sub-pixel and the second sub-pixel, the light-emitting area of the second sub-pixel is larger than the light-emitting area of the first sub-pixel, and the second threshold is larger than the first sub-pixel. a threshold.
  • S1104 when it is determined that the display gray scale of the first sub-pixel is greater than or equal to the second threshold, send a third control signal to the first sub-pixel, where the third control signal instructs to control the plurality of sub-sub-pixels to emit light.
  • the light-emitting area of multiple sub-pixels included in a sub-pixel is usually designed to be gradual, or the light-emitting area of the multiple sub-pixels increases sequentially.
  • the display gray scale of the input sub-pixel is When it is very low, only the sub-pixel with the smallest light-emitting area is controlled to turn on and emit light, which can effectively increase the current density of the light-emitting diode, so that the light-emitting diode can have a stable light-emitting spectrum even when the input display gray scale is relatively low. Reduces display color casts.
  • the display gray scale of the sub-pixel is greater than or equal to the first threshold value and less than the second threshold value
  • the current density of the sub-pixel may exceed the rated current and burn out.
  • the entire sub-pixel (or driving the sub-pixel to emit light in the whole area) may still have the problem of unstable display spectrum.
  • the second sub-pixel with a larger light-emitting area can be lit, which can improve the efficiency of the light-emitting diode.
  • the current density can improve the stability of the luminescence spectrum and reduce the display color shift.
  • the current density of the diode does not exceed the rated current to avoid the diode from being burned.
  • the display gray scale of the sub-pixel is greater than the second threshold, the light-emitting spectrum of the sub-pixel tends to be stable, and the displayed color is also accurate and uniform.
  • all sub-pixels are controlled to emit light to ensure that each sub-pixel emits light.
  • the current density is within the rated range, realizing full-area lighting of the sub-pixel and improving the display efficiency of the sub-pixel.
  • the first control signal includes an enable signal for turning on the switch corresponding to the first sub-pixel
  • the second control signal includes an enable signal for turning on the switch corresponding to the second sub-pixel
  • the third control signal includes a plurality of enable signals for turning on switches corresponding to the plurality of sub-sub-pixels, wherein the plurality of enable signals are in one-to-one correspondence with the plurality of sub-sub-pixels.
  • the first control signal is used to instruct to turn off switches corresponding to other sub-sub-pixels except the first sub-pixel
  • the second control signal is used to turn off switches other than the second sub-sub-pixel. Switches corresponding to other sub-pixels.
  • Steps S1101-S1104 do not limit the execution order of the method. Steps S1101-S1104 can usually be executed synchronously or in a sequential order, or the steps may not be executed strictly synchronously, but exist between each other. Some time differences are not limited in this embodiment of the present application.
  • FIG. 12 it is a schematic structural diagram of a display control apparatus 1200 according to an embodiment of the present application. It should be understood that, the functions implemented by the processor and the transmission interface in the aforementioned FIG. 9 can all be completed by the functional units running on the display control device as shown in FIG. 12 .
  • the functional unit may be implemented in hardware, software, or cooperatively implemented by software and hardware.
  • the display control apparatus 1200 includes: a determining unit 1210 and a sending unit 1220, the determining unit 1210 is used to implement the related functions of the processor in FIG. 9, and the transmitting unit 1220 is used to implement the related functions of the transmission interface in FIG. 9.
  • FIG. 13 is a color coordinate simulation diagram of a green sub-pixel under a low display gray scale provided by an embodiment of the present application.
  • the CIE color coordinate change is used to represent the OLED spectral drift
  • the G sub-pixel is used as an example for simulation.
  • the abscissa represents the display brightness of the display panel, and the unit is nit.
  • the ordinate represents the CIE color coordinate of the G sub-pixel.
  • the CIE color coordinate includes the CIEx coordinate and the CIEy coordinate. Generally speaking, when the CIEx is less than 0.264 and the CIEy coordinate is greater than 0.7, it indicates that the color of green light is stable and acceptable, otherwise, it indicates that the color of the green light is stable and acceptable. Green light has a color cast.
  • the pixel structure corresponding to the simulation diagram shown in Figure 13 divides the sub-pixel into two sub-sub-pixels.
  • the luminous area ratio of the two sub-sub-pixels is 1:4, it is recorded as AR'4.
  • the luminous area ratio of the pixel is 1:10, it is recorded as AR'10. It can be seen from the figure that for the traditional pixel structure, the display brightness of the display panel needs to be greater than 3 nits, and the corresponding display gray scale is greater than 32.
  • the embodiments of the present application further provide a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, when the computer or the processor is run on the computer or the processor, the computer or the processor executes the display control provided by the embodiments of the present application. some or all of the steps in a method embodiment.
  • the embodiments of the present application also provide a computer program product containing instructions, which, when run on a computer or processor, cause the computer or processor to execute some or all of the steps in the display control method embodiments provided by the embodiments of the present application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

一种像素结构，像素结构应用于自发光显示面板，该像素结构包括：多个子像素，多个子像素中的至少一个子像素包括多个亚子像素，相邻两个亚子像素之间设置有隔断层；多个亚子像素的发光分别独立控制。在显示灰阶比较低的情况下，流经发光器件的电流密度也比较低，仅控制部分亚子像素发光，由于亚子像素的发光面积低于子像素的发光面积，亚子像素的电流密度大于子像素的电流密度，而发光光谱在电流密度较大时稳定性更好，显示颜色更准确，并且，由于电流密度增大了，漏电现象对显示不均匀问题的影响降低，极大缓解了显示不均匀问题。

Description

一种像素结构和显示面板 技术领域
本申请涉及显示器领域，尤其涉及一种像素结构和显示面板。
背景技术
液晶显示屏(Liquid crystal display，LCD)需要白光背光光源，通过电压控制液晶的角度来控制穿透过液晶的亮度，LCD的显示原理决定了LCD出射的光具有方向性，在垂直方向观看时亮度正常，但是侧视时会出现大视角偏色。自发光显示面板的像素中具有自发光器件，发射光在不同的角度分布规律一致，侧视也不会出现偏色。因此自发光显示面板具有高对比度、广色域和宽视角等优点，例如有源矩阵有机发光二极管(Active matrix organic light emitting diode，AMOLED)显示面板还具有可折叠的柔性形态，AMOLED显示面板被广泛应用在手机上。但是自发光显示面板在显示灰阶较低的情况下，会存在显示偏色和显示不均匀等问题，影响用户体验。
发明内容
本申请实施例提供一种像素结构和显示面板，用于改善自发光显示面板在低灰阶下显示色偏和显示不均匀的问题。
本申请实施例第一方面提供了一种像素结构，该像素结构应用于自发光显示面板，该像素结构包括：多个子像素，该多个子像素中的至少一个子像素包括多个亚子像素，该至少一个子像素中的相邻两个亚子像素之间设置有隔断层；该多个亚子像素的发光分别独立控制。
自发光显示面板中包括自发光器件，例如有机发光二极管(organic light emitting diode，OLED)，发光二极管LED等，OLED和LED等发光器件的发光光谱的稳定性与流经发光器件的电流密度有关，当流经发光器件的电流密度较低时，发光器件的发光光谱不稳定，显示面板容易出现偏色现象。应当理解，电流密度为驱动电流与发光器件的发光面积的比值。进一步的，OLED和LED器件均存在不同程度的漏电现象，并且该漏电现象无明显规律，因此流经每个发光器件的有效电流不均匀，导致显示面板的显示亮度不均匀，当注入像素的电流较小时，漏电现象导致的显示不均匀问题进一步加剧。本申请实施例将子像素划分为多个亚子像素，每个亚子像素的发光可以分别独立控制，因此该子像素的发光面积是可以控制的，从而可以根据显示灰阶的大小调整子像素的发光面积，应当理解，显示灰阶与流经发光器件的电流密度具有对应性，较低的显示灰阶对应较小的电流密度。例如在显示灰阶比较低的情况下，流经发光器件的电流密度也比较低，仅控制部分亚子像素发光，由于亚子像素的发光面积低于子像素的发光面积，亚子像素的电流密度大于子像素的电流密度，而像素的发光光谱在 电流密度较大时稳定性更好，显示颜色更准确，并且，由于电流密度增大了，漏电现象对显示不均匀问题的影响降低，极大缓解了显示不均匀问题，因此本申请实施例提供的像素结构可以改善低灰阶显示时存在的显示色偏和显示不均匀问题。
在一种可能的实施方式中，该隔断层用于阻隔该相邻两个亚子像素之间的横向电流串扰。
在一种可能的实施方式中，该隔断层的材料包括光刻胶。
在一种可能的实施方式中，该自发光显示面板包括：Micro LED显示面板，OLED显示面板，AMOLED显示面板或无源矩阵有机发光二极管(Passive matrix organic light emitting diode，PMOLED)显示面板。
在一种可能的实施方式中，该多个子像素包括：红色(red，R)子像素、绿色(green，G)子像素或蓝色(blue，B)子像素。
在一种可能的实施方式中，该多个子像素的排布包括：RGB排布、RGBG排布或RGB delta排布。
在一种可能的实施方式中，第一子像素包括第一亚子像素和第二亚子像素，该第一子像素为该多个子像素中的任一个子像素，该第一亚子像素的发光面积小于该第二亚子像素的发光面积；该第一亚子像素发光，或，该第二亚子像素发光，或该第一亚子像素和该第二亚子像素均发光。
在一种可能的实施方式中，第一子像素包括第一亚子像素和第二亚子像素，该第一子像素为该多个子像素中的任一个子像素，该第一亚子像素的发光面积小于该第二亚子像素的发光面积；当该第一子像素的显示灰阶小于第一阈值时，控制该第一亚子像素发光。
应当理解，当子像素的显示灰阶低于第一阈值时，子像素对应的电流密度很小，子像素的发光光谱不稳，会出现显示色偏和显示不均匀等问题，此时，控制多个亚子像素中发光面积较小的第一亚子像素导通发光，由于第一亚子像素的发光面积小，第一亚子像素的电流密度成倍提升，发光光谱也更稳定，可以有效减少显示色偏。
在一种可能的实施方式中，当该第一子像素的显示灰阶大于等于该第一阈值，小于第二阈值时，控制该第二亚子像素发光；该第二阈值大于该第一阈值；当该第一子像素的显示灰阶大于等于该第二阈值时，控制该第一亚子像素和该第二亚子像素发光。
对于一个子像素包括2个亚子像素的情况，在根据显示灰阶控制子像素的点亮面积时，将显示灰阶划分成三个分段：小于第一阈值，第一阈值和第二阈值之间，大于第二阈值，对应的可以存在三种控制子像素发光面积的方案：仅点亮发光面积小的亚子像素，仅点亮面发光积大的亚子像素或者将两个亚子像素均点亮，当子像素的显示灰阶低于第一阈值时，子像素对应的电流密度很小，子像素的发光光谱不稳，会出现显示色偏和显示不均匀等问题，此时，控制多个亚子像素中发光面积较小的第一亚子像素导通发光，由于第一亚子像素的发光面积小，第一亚子像素的电流密度成倍提升，发光光谱也更稳定，可以有效减少显示色偏。当子像素的显示灰阶大于等于第一阈值，且小于第二阈值时，如果驱动发光面积最小的亚子像素发光，可能使得该亚子像素的 电流密度超过额定电流而烧毁，但是如果点亮整个子像素(或者说驱动子像素全面积发光)，仍然可能出现显示光谱不稳的问题，这种情况下，可以点亮发光面积较大的第二亚子像素，一方面可以提高发光二极管的电流密度，提升发光光谱的稳定性，减小显示色偏，另一方面还可以确保二极管的电流密度不超过额定电流，避免二极管被烧毁。当子像素的显示灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，这种情况下，控制所有的亚子像素均发光，以确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
在一种可能的实施方式中，该第一子像素包括多个亚子像素，该多个亚子像素的发光面积依次增大，当该第一子像素的显示灰阶小于该第一阈值时，控制该多个亚子像素中发光面积最小的亚子像素发光。
应当理解，本申请实施例中，一个子像素包括的多个亚子像素的发光面积通常设计成渐变的，或者说多个亚子像素的发光面积依次增大，当输入子像素的显示灰阶非常低时，只控制发光面积最小的亚子像素导通发光，从而可以有效提升发光二极管的电流密度，使得发光二极管在输入的显示灰阶比较低的情况下，也能具有稳定的发光光谱，减小显示色偏。
在一种可能的实施方式中，该第一子像素为G子像素，该第一阈值为32。
应当理解，当子像素的显示灰阶低于第一阈值时，子像素的发光光谱不稳，会出现显示色偏，不同种类的子像素出现显示色偏对应的第一阈值不同，例如，R子像素、G子像素和B像素出现显示色偏对应的第一阈值不同；另外，不同种类的显示面板或者不同厂家生产的同一种显示面板出现显示色偏对应的第一阈值也有可能不同。
在一种可能的实施方式中，该第一子像素为G子像素，该第二阈值为64。
应当理解，当子像素的输入灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，不同种类的子像素对应的第二阈值不同，例如，R子像素、G子像素和B像素对应的第二阈值不同；另外，不同种类的显示面板或者不同厂家生产的同一种显示面板对应的第二阈值也有可能不同。
在一种可能的实施方式中，该第一子像素包括3个亚子像素，该3个亚子像素由第一亚子像素至第三亚子像素，发光面积依次增大，当第一子像素的显示灰阶低于第一阈值，则控制第一亚子像素导通发光；当第一子像素的显示灰阶大于等于第一阈值，小于第二阈值时，则控制第二亚子像素导通发光；当第一子像素的显示灰阶大于等于第二阈值，小于第三阈值时，则控制第三亚子像素导通发光；当第一子像素的显示灰阶大于等于第三阈值时，则控制3个亚子像素均发光。
应当理解，当子像素包括的亚子像素的个数越多时，在根据显示灰阶控制子像素的点亮面积时，可以将显示灰阶划分成更多个分段，对应的，也存在更多种控制子像素发光面积的方案，显示灰阶的划分层次更细致，对显示效果的控制更加灵活而平滑。
在一种可能的实施方式中，该隔断层的侧表面与第一平面的夹角小于等于90度，该第一平面与该像素结构的表面所在的平面平行。
应当理解，由于隔断层的侧表面与基板平面的夹角小于等于90度，也即隔断层是 一个沿高度方向横截面逐渐增大的倒梯形，隔断层的上表面的宽度大于下表面的宽度，上表面为远离基板的平面，下表面为靠近基板的平面。在蒸镀有机发光材料时，由于隔断层上表面的遮挡，蒸镀有机发光材料时无法形成连续的薄膜，而有机发光层包括一层导电率较高的空穴注入层，由于隔断层的宽度一般仅有1-2μm，如果形成连续的薄膜结构，隔断层两侧的空穴注入层可能会形成横向的电流串扰，因此本申请实施例的隔断层的侧表面与基板平面的夹角小于等于90度，蒸镀有机发光材料时无法形成连续的薄膜，增大了隔断层两侧空穴注入层之间的距离，避免隔断层两侧的空穴注入层形成横向的电流串扰。
在一种可能的实施方式中，相邻两个子像素之间设置有像素定义层，该像素定义层的侧表面与该第一平面的夹角大于90度。
像素定义层与基板平面的夹角大于90度，因此蒸镀有机发光材料时可以形成连续的薄膜结构，由于像素定义层的宽度一般为20-40μm，即便蒸镀有机发光材料时形成了连续的薄膜结构，像素定义层相邻两侧的空穴注入层电阻很大，形成的横向电流串扰十分微弱，基本可以忽略，而且不会破坏阴极的连续性和完整性，确保阴极整面的导电性。
在一种可能的实施方式中，该像素结构还包括基板层，该第一平面与该基板层的上表面平行。该驱动层设置在该基板层的上表面，上述阳极层设置在该驱动层的上表面。
在一种可能的实施方式中，该多个亚子像素中的每个亚子像素包括阳极层、有机发光层和阴极层，该有机发光层位于该阳极层和该阴极层之间；相邻两个亚子像素的阳极层之间设置有该隔断层；且，相邻两个亚子像素的有机发光层之间设置有该隔断层；该多个亚子像素共用同一个阴极层。
在一种可能的实施方式中，自发光显示面板为micro LED显示面板，该多个亚子像素中的每个亚子像素包括阴极层、有机发光层和阳极层，该有机发光层位于该阳极层和该阴极层之间；相邻两个亚子像素的阴极层之间设置有该隔断层；且，相邻两个亚子像素的有机发光层之间设置有该隔断层；该多个亚子像素共用同一个阳极层。
在一种可能的实施方式中，该像素结构还包括：驱动层，该驱动层上设置有驱动电路，该多个子像素中的每个子像素对应一个驱动电路，该驱动电路用于分别独立控制该多个亚子像素发光；该驱动电路包括多个支路开关，该多个支路开关的个数与一个子像素包括的亚子像素的个数相等，且一个支路开关对应一个亚子像素；该多个亚子像素中每个亚子像素包括一个发光二极管，该支路开关用于控制对应的亚子像素中的发光二极管的导通或断开。
应当理解，多个支路开关设置在驱动层中，发光二极管设置在阳极层、有机发光层和阴极层中。应当理解，一个支路开关可能由一个或多个开关管组成，本申请实施例不限定支路开关中包括的开关管的数量。
在一种可能的实施方式中，该多个支路开关包括第一支路开关和第二支路开关，该第一支路开关对应第一发光二极管，该第二支路开关对应第二发光二极管，当该第一支路开关导通时，该第一发光二极管导通，当该第二支路开关导通时，该第二发光 二极管导通。
在一种可能的实施方式中，该支路开关串联在对应的发光二极管的支路中，该支路开关具体用于接收控制信号，并在该控制信号的作用下导通或断开，以使得该支路开关所在支路的发光二极管导通或断开。
在一种可能的实施方式中，该多个支路开关并联，该驱动电路还包括一个总开关，该多个支路开关并联之后与该总开关串联，该总开关连接至该驱动电路的输入端，当向该输入端输入驱动电压时，该总开关导通，该驱动电压与该驱动电路对应的子像素的显示灰阶对应。
在一种可能的实施方式中，该多个支路开关与多个控制线一一对应连接，该多个支路开关从各自对应的扫描控制线接收控制信号，并在该控制信号的作用下导通或断开。
应当理解，一个总开关可能由一个或多个开关管组成，本申请实施例不限定总开关中包括的开关管的数量。
在一种可能的实施方式中，相邻两个亚子像素的阳极之间的间隙为1微米μm至2μm。
应当理解，相邻两个亚子像素的阳极之间的间隙应当大于等于1μm，相邻两个亚子像素之间的间隙大于相邻两个亚子像素的阳极之间的间隙。相邻两个亚子像素之间的间隙为将相邻两个亚子像素点亮之后，相邻两个发光体之间不发光的部分的宽度。由于隔断层是一个沿高度方向横截面逐渐增大的倒梯形，一个亚子像素的有机发光层的面积小于该亚子像素的阳极的面积，而亚子像素的发光面积取决于亚子像素的有机发光层和阳极层的重合面积，因此亚子像素的发光面积略小于亚子像素的阳极的面积。
在一种可能的实施方式中，该第一亚子像素对应第一阳极，该第二亚子像素对应第二阳极，该第一阳极的面积和该第二阳极的面积的比值为1至10。
应当理解，如果两个阳极的面积比例过大，第二阳极的面积会过小，增大制备难度；如果两个阳极的面积比例过小，则低灰阶的显示效果不佳。第一阳极的面积和第二阳极的面积的比值可以为整数或小数。
本申请实施例第二方面提供了一种自发光显示面板，包括第一方面及其任一种可能的实施方式中的像素结构。
在一种可能的实施方式中，该自发光显示面板还包括显示驱动器集成电路(Display Driver Integrated Circuits，DDIC)。
本申请实施例第三方面提供了一种显示控制装置，该显示控制装置用于控制自发光显示面板中的像素结构，该像素结构包括多个子像素，该多个子像素中的每个子像素包括多个亚子像素，该显示控制装置包括：处理器和传输接口，该处理器，用于生成至少一个控制信号；该处理器，还用于控制该传输接口将该至少一个控制信号发送给第一子像素，该第一子像素为该多个子像素中的任一个子像素；其中，该至少一个控制信号指示控制该第一子像素包括的多个亚子像素中的一个或多个亚子像素发光。
应当理解，本申请实施例提供的显示控制装置可以生成不同的控制信号，从而控制子像素中包括的多个亚子像素分别独立发光。例如，生成用于控制第一亚子像素发光的控制信号，或生成用于控制第二亚子像素发光的控制信号，或者生成用于控制局部亚子像素发光或全部亚子像素发光的控制信号。
在一种可能的实施方式中，该处理器，还用于确定该第一子像素的显示灰阶是否小于第一阈值；在该处理器确定该第一子像素的显示灰阶小于该第一阈值的情况下，该处理器，具体用于：生成第一控制信号，该至少一个控制信号包括该第一控制信号；该处理器，还用于控制该传输接口向该第一子像素发送该第一控制信号，该第一控制信号指示控制第一亚子像素发光，该第一亚子像素为该第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
应当理解，当子像素的显示灰阶低于第一阈值时，子像素对应的电流密度很小，子像素的发光光谱不稳，会出现显示色偏和显示不均匀等问题，本申请实施例中，一个子像素包括的多个亚子像素的发光面积通常设计成渐变的，或者说多个亚子像素的发光面积依次增大，当输入子像素的显示灰阶非常低时，只控制发光面积最小的亚子像素导通发光，从而可以有效提升发光二极管的电流密度，使得发光二极管在输入的显示灰阶比较低的情况下，也能具有稳定的发光光谱，减小显示色偏。
在一种可能的实施方式中，该第一子像素包括该第一亚子像素和第二亚子像素，该第二亚子像素的发光面积大于该第一亚子像素的发光面积，在确定该第一子像素的显示灰阶大于等于该第一阈值，且小于第二阈值的情况下，该处理器，具体用于：生成第二控制信号，该至少一个控制信号包括该第二控制信号；该处理器，还用于控制该传输接口向该第一子像素发送该第二控制信号，该第二控制信号指示控制该第二亚子像素发光；其中，该第二阈值大于该第一阈值。
当子像素的显示灰阶大于等于第一阈值，且小于第二阈值时，如果驱动发光面积最小的亚子像素发光，可能使得该亚子像素的电流密度超过额定电流而烧毁，但是如果点亮整个子像素(或者说驱动子像素全面积发光)，仍然可能出现显示光谱不稳的问题，这种情况下，可以点亮发光面积较大的第二亚子像素，一方面可以提高发光二极管的电流密度，提升发光光谱的稳定性，减小显示色偏，另一方面还可以确保二极管的电流密度不超过额定电流，避免二极管被烧毁。
在一种可能的实施方式中，该第一控制信号用于指示关闭除该第一亚子像素之外的其他亚子像素对应的开关，该第二控制信号用于关闭除该第二亚子像素之外的其他亚子像素对应的开关。
应当理解，当多个亚子像素对应的开关默认导通，当处理器监测到输入子像素的显示灰阶低于第一阈值时，会发送第一控制信号以关闭除发光面积最小的亚子像素之外的其他亚子像素。当处理器监测到显示灰阶大于等于第一阈值，且小于第二阈值时，会发送第二控制信号以关闭除第二亚子像素之外的其他亚子像素；当处理器监测到显示灰阶大于第二阈值时，不发送任何控制信号，多个亚像素对应的开关均导通。
在一种可能的实施方式中，在确定该第一子像素的显示灰阶大于等于该第二阈值的情况下，该处理器，具体用于：生成第三控制信号，该至少一个控制信号包括该第 三控制信号；该处理器，还用于控制该传输接口向该第一子像素发送该第三控制信号，该第三控制信号指示控制该多个亚子像素均发光。
在一种可能的实施方式中，该第一控制信号包括用于导通该第一亚子像素对应的开关的使能信号，该第二控制信号包括用于导通该第二亚子像素对应的开关的使能信号，该第三控制信号包括用于导通该多个亚子像素对应的开关的多个使能信号，其中，该多个使能信号与该多个亚子像素一一对应。
在一种可能的实施方式中，该自发光显示面板包括有机发光二极管OLED显示面板，有源矩阵有机发光二极管AMOLED显示面板或微发光二极管micro LED显示面板。
本申请实施例第四方面提供了一种显示控制的方法，该方法用于控制自发光显示面板中的像素结构，该像素结构包括多个子像素，该多个子像素中的每个子像素包括多个亚子像素，该方法包括：生成至少一个控制信号；将该至少一个控制信号发送给第一子像素，该第一子像素为该多个子像素中的任一个子像素；其中，该至少一个控制信号指示控制该第一子像素包括的多个亚子像素中的一个或多个亚子像素发光。
应当理解，第四方面的显示控制方法的有益效果与第三方面的显示控制装置的有益效果类似，此处不再赘述。
在一种可能的实施方式中，该方法还包括：确定该第一子像素的显示灰阶是否小于第一阈值；在确定该第一子像素的显示灰阶小于该第一阈值的情况下，生成第一控制信号，该至少一个控制信号包括该第一控制信号；向该第一子像素发送该第一控制信号，该第一控制信号指示控制第一亚子像素发光，该第一亚子像素为该第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
在一种可能的实施方式中，该第一子像素包括该第一亚子像素和第二亚子像素，该第二亚子像素的发光面积大于该第一亚子像素的发光面积，该方法还包括：在确定该第一子像素的显示灰阶大于等于该第一阈值，且小于第二阈值的情况下，生成第二控制信号，该至少一个控制信号包括该第二控制信号；向该第一子像素发送该第二控制信号，该第二控制信号指示控制该第二亚子像素发光；其中，该第二阈值大于该第一阈值。
在一种可能的实施方式中，该第一控制信号用于指示关闭除该第一亚子像素之外的其他亚子像素对应的开关，该第二控制信号用于关闭除该第二亚子像素之外的其他亚子像素对应的开关。
在一种可能的实施方式中，该方法还包括：在确定该第一子像素的显示灰阶大于等于该第二阈值的情况下，生成第三控制信号，该至少一个控制信号包括该第三控制信号；向该第一子像素发送该第三控制信号，该第三控制信号指示控制该多个亚子像素均发光。
在一种可能的实施方式中，该第一控制信号包括用于导通该第一亚子像素对应的开关的使能信号，该第二控制信号包括用于导通该第二亚子像素对应的开关的使能信号，该第三控制信号包括用于导通该多个亚子像素对应的开关的多个使能信号，其中，该多个使能信号与该多个亚子像素一一对应。
在一种可能的实施方式中，该自发光显示面板包括有机发光二极管OLED显示面 板，有源矩阵有机发光二极管AMOLED显示面板或微发光二极管micro LED显示面板。
在一种可能的实施方式中，该方法包括：确定第一子像素的显示灰阶是否小于第一阈值，该第一子像素为该多个子像素中的任一个子像素；在确定该第一子像素的显示灰阶小于该第一阈值的情况下，向该第一子像素发送第一控制信号，该第一控制信号指示控制第一亚子像素发光，该第一亚子像素为该第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
在一种可能的实施方式中，所述第一子像素包括所述第一亚子像素和第二亚子像素，所述第二亚子像素的发光面积大于所述第一亚子像素的发光面积，所述方法还包括：在确定所述第一子像素的显示灰阶大于等于所述第一阈值，且小于第二阈值的情况下，向所述第一子像素发送第二控制信号，所述第二控制信号指示控制所述第二亚子像素发光；其中，所述第二阈值大于所述第一阈值。
在一种可能的实施方式中，所述方法还包括：在确定所述第一子像素的显示灰阶大于等于所述第二阈值的情况下，向所述第一子像素发送第三控制信号，所述第三控制信号指示控制所述多个亚子像素均发光。
本申请第五方面提供了一种显示控制装置，该装置包括用于实现第四方面及其任一种可能的实施方式中的显示控制方法的功能模块。
本申请第六方面提供了一种终端，该终端包括如第二方面及其任一种可能的实施方式的中自发光显示面板和如第三方面及其任一种可能的实施方式中的显示控制装置。
本申请第七方面提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机或处理器上运行时，使得该计算机或处理器执行如上述第四方面或者其任一种可能的实施方式中的方法。
本申请第八方面提供了一种包含指令的计算机程序产品，当其在计算机或处理器上运行时，使得该计算机或处理器执行如上述第四方面或者其任一种可能的实施方式中的方法。
附图说明
图1为本申请实施例提供的一种示例性的像素结构的截面示意图；
图2为本申请实施例提供的一种示例性的像素结构的立体图；
图3为本申请提供的一种示例性的像素结构的截面示意图；
图4a为本申请实施例提供的一种像素结构的阳极层示意图；
图4b为本申请实施例提供的一种像素结构的截面示意图；
图5为本申请实施例提供的一种驱动电路的原理示意图；
图6为本申请实施例提供的一种示例性的像素结构的截面示意图；
图7a为本申请实施例提供的一种示例性的RGB排布的显示面板；
图7b本申请实施例提供的一种示例性的RGBG排布的显示面板；
图7c本申请实施例提供的一种示例性的RGB delta排布的显示面板；
图8为本申请实施例提供的一种像素结构的截面示意图；
图9为本申请实施例提供的一种显示控制装置；
图10为本申请实施例提供的一种显示控制的方法流程图；
图11为本申请实施例提供的一种显示控制的方法流程图；
图12为本申请实施例提供的一种显示控制装置的结构示意图；
图13为本申请实施例提供的一种低显示灰阶下的绿色子像素的色坐标仿真图。
具体实施方式
本申请的说明书实施例和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元。方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
自发光显示面板中包括自发光器件，例如OLED和LED等，OLED和LED等发光器件的发光光谱的稳定性与流经发光器件的电流密度有关，当流经发光器件的电流密度较低时，发光器件的发光光谱不稳定，显示面板容易出现偏色现象。进一步的，OLED和LED器件均存在不同程度的漏电现象，并且该漏电现象无明显规律，因此流经每个发光器件的有效电流不均匀，导致显示面板的显示亮度不均匀，当注入像素的电流较小时，漏电现象导致的显示不均匀问题进一步加剧。也即，现有技术中的自发光显示面板在显示灰阶较低的情况下，存在显示偏色和显示不均匀等问题，影响用户体验。而AMOLED显示面板广泛应用于智能手机中，如果能够解决AMOLED显示面板在低显示灰阶下存在的显示偏色和显示不均匀问题，将极大改善用户体验，提升产品竞争力。本申请实施例提供一种像素结构和显示面板，可以有效改善自发光显示面板在低灰阶下显示色偏和显示不均匀的问题。
AMOLED显示面板单色点亮时，应当理解，单色点亮表示显示面板中的每个像素输入相同的显示灰阶，显示面板中的任一个像素的亮度L pixel可以表示为公式(1)或公式(2)：
Figure PCTCN2020138928-appb-000001
L pixel＝CE·J pixel   (2)
Figure PCTCN2020138928-appb-000002
Figure PCTCN2020138928-appb-000003
其中，L panel表示显示面板的亮度，AR表示像素开口率，CE为OLED的电流效率，J pixel为子像素的电流密度。
S Anode表示发光阳极的面积，S pixel表示子像素的面积，像素开口率AR为发光阳极的面积与子像素的面积的比值。I为驱动该子像素的驱动电路的驱动电流。
结合公式(1)、(2)和(4)可以得到如下等式：
Figure PCTCN2020138928-appb-000004
由于对于一个已知的显示面板，CE和S pixel均是定值，因此，显示面板的亮度取决于驱动电流I的大小，当子像素输入的显示灰阶较低时，显示面板的显示亮度越低、对应的电流密度越小，而当电流密度较小时，OLED的发光光谱会发生偏移，从而发生显示色偏和显示不均匀的问题。如果可以提升子像素的电流密度，则可以有效改善自发光显示面板在低显示灰阶时存在的显示色偏和显示不均匀问题。
本申请实施例提供一种像素结构，该像素结构应用于自发光显示面板，该像素结构包括：多个子像素，该多个子像素中至少一个子像素包括多个亚子像素，该至少一个子像素中的相邻两个亚子像素之间设置有隔断层；该多个亚子像素的发光分别独立控制。
在一种可选的情况中，该像素结构中的每个子像素都包括多个亚子像素，或者该像素结构中部分子像素包括多个亚子像素。
如图1所示，为本申请实施例提供的一种示例性的像素结构的截面示意图，如图2所示，为本申请实施例提供的一种示例性的像素结构的立体图。如图1所示，该像素结构包括：R子像素、G子像素和B子像素，R子像素、G子像素和B子像素均被分成了两个亚子像素，相邻两个亚子像素之间设置有隔断层，其中，R子像素包括第一R亚子像素和第二R亚子像素，G子像素包括第一G亚子像素和第二G亚子像素，B子像素包括第一B亚子像素和第二B亚子像素。每个亚子像素对应一个发光器件，AMOLED像素结构中包括的发光器件为OLED。
应当理解，R子像素、G子像素和B子像素具有类似的结构，下面仅以R子像素为例进行说明，R子像素包括第一亚子像素R1和第二亚子像素R2，R1和R2均包括阳极层、有机发光层和阴极层，其中，R1的阳极层和R2的阳极层之间设置有隔断层，R1的有机发光层和R2的有机发光层之间设置有隔断层，R1和R2的阴极层并未被隔断层隔断，也即R1和R2共用阴极层。换句话说，本申请实施例通过设置隔断层，该隔断层将R子像素的阳极分成两个阳极，该两个阳极的面积可以相同也可以不同，该隔断层将R子像素的有机发光层也分成了两部分，该两个有机发光层的面积可以相同也可以不同。在一种可选的情况中，也可以说每个亚子像素的发光器件均包括阳极层、有机发光层和阴极层。
示例性的，阳极层包括一层或多层材料的组合，例如，氧化铟锡(indium tin oxide，ITO)+银Ag层+ITO层的组合，ITO层+铝Al层+ITO层的组合，Al层与ITO层的组合，以及Ag层与ITO层的组合。阳极层采用物理气相沉积、溅射或者电子束蒸发等工艺制备。应当理解，图1仅示出了几个关键的层，图1所示的像素结构示意图不应对像素结构形成限定。例如有机发光层可以包含多层，例如空穴注入层、空穴传输层、发光层、空穴阻挡层、电子传输层以及电子注入层等。有机发光层上设置有有机发光 材料，例如R子像素的有机发光层上设置有红色发光材料，G子像素的有机发光层上设置有绿色发光材料，B子像素的有机发光层上设置有蓝色发光材料。当从阳极层注入空穴以及从阴极层注入电子时，发光材料上会形成发光激子，发光激子以光的形式将能量释放，从而实现发光。具体的，红色发光材料发出红色光，绿色发光材料发出绿色光，蓝色发光材料发出蓝色光。阴极层一般采用镁银合金、铝或银等金属材料，阴极通常采用物理气相沉积、电子束蒸发以及电阻热蒸发等工艺制备。在一种可选的情况中，像素结构还包括圆偏振片，设置在发光器件的阴极层上。
相邻两个子像素之间设置有像素定义层，像素定义层用于阻隔相邻的子像素之间的像素串扰。隔断层用于阻隔相邻的亚子像素之间的横向电流串扰或像素串扰，或者说，该隔断层用于阻隔两个亚子像素的OLED，防止相邻的两个OLED的横向电流的互相干扰。像素串扰是指相邻像素之间横向电流串扰导致的显示异常，例如，在驱动红色子像素发光时，相邻的蓝色子像素和绿色子像素因为横向电流串扰的原因也被驱动点亮。隔断层的材料与像素定义层的材料相同，例如可以为光刻胶，例如Microchem SU-8光刻胶。通常来说，隔断层和像素定义层采用曝光显影的刻蚀工艺，该刻蚀工艺在阳极制备流程之后。应当理解，图2所示的立体图是一种简化的立体图，仅示出了阳极层、有机发光层和阴极层。该阳极层表示阳极所在的平面，该平面上的多个阳极之间被像素定义层或隔断层隔开，如图2所示，灰色阴影部分为阳极，子像素内部的两个阳极之间被隔断层隔开，相邻子像素之间的阳极被像素定义层隔开，也即，图2中阳极层中除灰色阴影部分之外的空白部分为像素定义层或隔断层，其中子像素内部的两个阳极之间的空白部分为隔断层；相邻两个子像素之间的阳极的空白部分为像素定义层。
该隔断层的侧表面与第一平面的夹角小于等于90度，该第一平面与该像素结构的表面所在的平面平行，该第一平面还与基板平面平行。该像素定义层的侧表面与该第一平面的夹角大于90度。如图3所示，为本申请提供的一种像素结构的截面示意图，由图3可以看出，由于隔断层的侧表面与基板平面的夹角小于等于90度，也即隔断层的上表面的宽度大于下表面的宽度，上表面为远离基板的平面，下表面为靠近基板的平面。在蒸镀有机发光材料时，由于隔断层上表面的遮挡，蒸镀有机发光材料时无法形成连续的薄膜，如图3中的虚线区域301所示，也即隔断层的侧表面与有机发光层之间存在间隙，如果隔断层的侧表面与基板平面的夹角大于90度，蒸镀有机发光材料时将形成连续的薄膜结构，由于有机发光层包括空穴注入层(图3中未示出)，该空穴注入层的材料导电率较高，而隔断层的宽度一般仅有1-2μm，如果形成连续的薄膜结构，隔断层两侧的空穴注入层可能会形成横向的电流串扰，因此本申请实施例的隔断层的侧表面与基板平面的夹角小于等于90度，蒸镀有机发光材料时无法形成连续的薄膜，增大了隔断层两侧空穴注入层之间的距离，避免隔断层两侧的空穴注入层形成横向的电流串扰。而像素定义层与基板平面的夹角大于90度，因此蒸镀有机发光材料时可以形成连续的薄膜结构，如图3中的椭圆内的区域302所示，由于像素定义层的宽度一般为20-40μm，即便蒸镀有机发光材料时形成了连续的薄膜结构，像素定义层相邻两侧的空穴注入层电阻很大，形成的横向电流串扰十分微弱，基本可以忽略，而且不会破坏阴极的连续性和完整性，确保阴极整面的导电性。应当理解，基板层和阳 极层之间还设置有驱动层，图3中未示出该驱动层。
该像素结构还包括：基板层，该基板层例如为柔性基板(Flexible Substrate)层或玻璃基板层。
该像素结构还包括：驱动层，设置在基板层的上表面，驱动层中设置有驱动电路，用于驱动设置在驱动层上的发光器件。当该像素为AMOLED显示面板中的像素时，该驱动层还可以称为薄膜晶体管(Thin film transistor，TFT)层，该TFT层中包括多个开关，每个亚子像素的阳极均对应一个开关，且每个亚子像素的导通或断开由各自对应的开关独立控制。应当理解，TFT层中包括的开关可以由一个或多个开关管组成，本申请实施例不限定TFT层中的开关中包括的开关管的数量。
在一种可选的情况中，该TFT层设置有驱动电路，每个子像素对应一个驱动电路，该驱动电路包括一个总开关和多个支路开关，驱动电路包括的支路开关的数量等于该驱动电路对应的子像素包括的亚子像素的个数，并且支路开关与亚子像素一一对应，每个支路开关用于控制对应的亚子像素的发光。示例性的，该开关例如可以为N型TFT、P型TFT等。具体的，每个亚子像素包括一个发光二极管，该发光二极管例如为OLED，支路开关与对应支路中的亚像素中的发光二极管串联，该支路开关用于控制对应的亚像素中的发光二极管的导通或断开。示例性的，该支路开关从中央处理单元(Central Processing Unit，CPU)、通用处理器、专用处理器、控制器或DDIC接收控制信号，并在控制信号的作用下导通或断开，从而使得该支路开关所在支路的发光二极管导通或断开。当发光二极管导通时，驱动电流流经发光二极管，该发光二极管对应的亚子像素发光。因此，本申请提供的驱动电路可以分别独立控制多个亚子像素发光。应当理解，一个总开关或一个支路开关均可以由一个或多个开关管组成，本申请实施例不限定总开关或支路开关中包括的开关管的数量。
进一步的，该多个支路开关并联，并联之后的多个支路开关与前述总开关串联，该总开关连接至驱动电路的输入端，该输入端用于输入驱动电压，驱动电压与驱动电路对应的子像素的显示灰阶相关。当向输入端输入驱动电压时，该总开关导通，驱动电流流经该总开关之后，通过导通的支路流向一个或多个发光二极管，以驱动一个或多个亚子像素发光。
在一种示例的情况中，每个子像素包括3个亚子像素，该子像素对应的驱动电路包括1个总开关和3个支路开关，当向该子像素输入显示灰阶时，总开关在驱动电压的作用下导通，如果3个支路开关在各自控制信号的作用下的状态依次为导通、关闭、关闭，则驱动电流在流经总开关之后，流经第一个支路开关并驱动第一个亚子像素发光。
在一种可能的实施方式中，第一子像素包括多个亚子像素，该第一子像素为像素结构中的任一个子像素，当输入第一子像素的显示灰阶小于第一阈值时，可以仅控制第一亚子像素发光，该第一亚子像素为多个亚子像素中发光面积最小的亚子像素。
应当理解，本申请实施例中，一个子像素包括的多个亚子像素的发光面积通常设计成渐变的，或者说多个亚子像素的发光面积依次增大，当输入子像素的显示灰阶非常低时，只控制发光面积最小的亚子像素导通发光，从而可以有效提升发光二极管的电流密度，使得发光二极管在输入的显示灰阶比较低的情况下，也能具有稳定的发光 光谱，减小显示色偏。
在一种可能的实施方式中，当输入第一子像素的显示灰阶大于第二阈值时，控制该第一子像素中的所有亚子像素均发光。
当子像素的显示灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，这种情况下，控制所有的亚子像素均发光，以确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
在一种可能的实施方式中，第一子像素包括第一亚子像素和第二亚子像素，第一子像素为多个子像素中的任一个子像素，第一亚子像素的发光面积小于第二亚子像素的发光面积；当第一子像素的显示灰阶小于第一阈值时，控制所述第一亚子像素发光。
在一种可能的实施方式中，当第一子像素的显示灰阶大于等于第一阈值，小于第二阈值时，控制第二亚子像素发光；第二阈值大于第一阈值；当第一子像素的显示灰阶大于等于第二阈值时，控制第一亚子像素和第二亚子像素发光。
对于一个子像素包括2个亚子像素的情况，在根据显示灰阶控制子像素的点亮面积时，将显示灰阶划分成三个分段：小于第一阈值，第一阈值和第二阈值之间，大于第二阈值，对应的可以存在三种控制子像素发光面积的方案：仅点亮发光面积小的亚子像素，仅点亮发光面积大的亚子像素或者将两个亚子像素均点亮，当子像素的显示灰阶低于第一阈值时，子像素对应的电流密度很小，子像素的发光光谱不稳，会出现显示色偏和显示不均匀等问题，此时，控制多个亚子像素中发光面积较小的第一亚子像素导通发光，由于第一亚子像素的发光面积小，第一亚子像素的电流密度成倍提升，发光光谱也更稳定，可以有效减少显示色偏。当子像素的显示灰阶大于等于第一阈值，且小于第二阈值时，如果驱动发光面积最小的亚子像素发光，可能使得该亚子像素的电流密度超过额定电流而烧毁，但是如果点亮整个子像素(或者说驱动子像素全面积发光)，仍然可能出现显示光谱不稳的问题，这种情况下，可以点亮发光面积较大的第二亚子像素，一方面可以提高发光二极管的电流密度，提升发光光谱的稳定性，减小显示色偏，另一方面还可以确保二极管的电流密度不超过额定电流，避免二极管被烧毁。当子像素的显示灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，这种情况下，控制所有的亚子像素均发光，以确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
在一种可能的实施方式中，该第一子像素为G子像素，该第一阈值为32，该第二阈值为64。
应当理解，当子像素的显示灰阶低于第一阈值时，子像素的发光光谱不稳，会出现显示色偏，不同种类的子像素出现显示色偏对应的第一阈值不同，例如，R子像素、G子像素和B像素出现显示色偏对应的第一阈值不同；另外，不同种类的显示面板或者不同厂家生产的同一种显示面板出现显示色偏对应的第一阈值也有可能不同。当子像素的输入灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，不同种类的子像素对应的第二阈值不同，例如，R子像素、G子像素和B像素对应的第二阈值不同；另外，不同种类的显示面板或者不同厂家生产的同一种显示面板对应的第二阈值也有可能不同。
如图4a所示，为本申请实施例提供的一种像素结构的截面示意图，图4b为本申 请实施例提供的一种像素结构的截面示意图，图5为本申请实施例提供的一种驱动电路的原理示意图，该驱动电路为图4a和图4b中所示的像素结构对应的驱动电路。
图4a中仅示出了一个子像素，虚线框表示一个子像素，虚线框内示出了第一阳极、第二阳极、以及两个阳极之间的间隙，应当理解，虚线框中除了第一阳极、第二阳极和两个阳极之间的间隙之外的空白部分均为像素定义层。该子像素包括两个亚子像素：第一亚子像素和第二亚子像素，该子像素包括第一阳极和第二阳极，其中，第一阳极为第一亚子像素的阳极，第二阳极为第二亚子像素的阳极，第一阳极和第二阳极之间存在间隙，该间隙中设置有隔断层。示例性的，第一阳极和第二阳极之间的间隙为1微米μm至2μm，应当理解，如果子像素的阳极被分为更多个阳极，相邻两个阳极的间隙都为1至2μm。示例性的，在OLED阳极的制备过程中，将子像素的阳极切分为两个面积较小的阳极，该两个阳极的面积的比可以为1至10之间的任意一个整数或小数，整个虚线框的面积为子像素的面积，由前述定义可知，像素的开口率为阳极的面积与像素的面积的比值，当只点亮一个亚子像素时，对应的子像素的开口率约为1％至20％之间。如果两个阳极的面积比例过大，第二阳极的面积会过小，增大制备难度；如果两个阳极的面积比例过小，则低灰阶的显示效果不佳。在对阳极进行图形化处理时，在子像素的阳极中刻蚀出一个宽度为1-2μm的间隙，并后续在该间隙中填充光刻胶等材料以形成隔断层，从而形成两个独立的阳极。这两个阳极分别穿孔引线与驱动层中的驱动电路相连。具体的，这两个阳极分别穿孔引线与驱动层中的开关相连。如图4b所示，隔断层的侧表面与基板表面的夹角小于90度，因此，随着隔断层的高度逐渐增大，隔断层的横截面也逐渐增大，因此在阳极层上蒸镀有机发光层的时候，有机发光层的面积小于阳极的面积，而亚子像素的发光面积取决于阳极和有机发光层的重合面积，因此亚子像素的发光面积略小于阳极的面积。应当理解，将相邻的两个亚子像素点亮时，两个亚子像素之间不发光的部分为两个亚子像素之间的间隙，相邻两个亚子像素之间的间隙大于该两个亚子像素对应的两个阳极之间的间隙。子像素的两侧分别设置有像素定义层，该像素定义层用于隔断相邻的子像素，该像素定义层的侧表面与基板表面的夹角大于90度。
图5示出了图4a中所示的像素结构对应的驱动电路的原理示意图，该驱动电路包括：第一支路开关501、第二支路开关502、总开关503，第一发光二极管504和第二发光二极管505，其中，第一发光二极管504对应第一亚子像素，第二发光二极管505对应第二亚子像素，在本申请实施例中，第一发光二极管504的发光面积小于第二发光二极管505的发光面积。第一支路开关501和第一发光二极管504串联，第二支路开关502和第二发光二极管505串联，第一支路开关501用于控制第一发光二极管504的导通或断开，第二支路开关502用于控制第二发光二极管505的导通或断开。
应当理解，第一支路开关501、第二支路开关502和总开关503设置在驱动层中，第一发光二极管504和第二发光二极管505设置在阳极层、有机发光层和阴极层中，或者说，第一发光二极管504和第二发光二极管505均包括阳极层、有机发光层和阴极层。第一发光二极管504和第二发光二极管505的阳极穿孔引线分别与驱动层中的第一支路开关501和第二支路开关502相连。
具体的，总开关503、第一支路开关501和第二支路开关502均包括栅极、源极 和漏极，总开关的栅极连接至驱动电压Vdata，该驱动电压Vdata与子像素的显示灰阶对应；总开关的源极连接至高电压ELVDD，示例性的，ELVDD为电致发光的器件电压，该ELVDD可以为3.0V到8.0V之间，总开关的漏极连接至第一支路开关501的源极和第二支路开关502的源极；第一支路开关501的栅极连接至第一控制信号EM1，或者，也可以说第一支路开关501的栅极用于接收第一控制信号EM1；第一支路开关501的漏极连接至第一发光二极管504的第一端(阳极端)，第一发光二极管504的第二端(阴极端)连接至低电压ELVSS，示例性的，该ELVSS为电致发光器件的公共接地端电压，该ELVSS可以为-0.5V到-5.0V之间；第二支路开关502的栅极连接至第二控制信号EM2，或者，也可以说第二支路开关502的栅极用于接收第二控制信号EM2；第二支路开关502的漏极连接至第二发光二极管505的第一端(阳极端)，第二发光二极管505的第二端(阴极端)连接至低电压ELVSS。控制信号EM1和EM2是CPU、通用处理器、专用处理器、控制器或DDIC根据子像素的显示灰阶发送的。示例性的，控制信号EM1和EM2可以是控制开关导通的信号，也可以是控制开关断开的信号。应当理解，该驱动电路中的总开关503、第一支路开关501和第二支路开关502可以是N型TFT或P型TFT。
在一种可选的情况中，处理器或DDIC可以监测输入到子像素的显示灰阶，当该显示灰阶低于第一阈值时，示例性的，该第一阈值为32，处理器或DDIC向像素结构中的驱动电路发送第一控制信号，该第一控制信号指示导通第一支路开关501，并断开第二支路开关502，从而只驱动发光面积较小的第一发光二极管504发光，OLED的电流密度成倍提升，提升发光光谱的稳定性，减少显示色偏。示例性的，该第一控制信号包括EM1和EM2，EM1用于导通第一支路开关501，EM2用于断开第二支路开关502。在一种可选的情况中，如果两个支路开关默认导通，则当处理器或DDIC确定显示灰阶低于第一阈值时，向驱动电路发送第一控制信号以断开或关闭第二支路开关502。在一种可选的情况中，如果两个支路开关默认断开，则当处理器或DDIC确定显示灰阶低于第一阈值时，向驱动电路发送第一控制信号以导通第一支路开关501。
当处理器或DDIC确定显示灰阶大于等于第一阈值，且小于第二阈值时，示例性的，第二阈值为64，处理器或DDIC向像素结构中的驱动电路发送第二控制信号，该第二控制信号指示关闭第一支路开关501，并导通第二支路开关502，从而只驱动发光面积较大的第二发光二极管505发光。这样，一方面可以避免发光面积较小的第一发光二极管504的电流密度超过额定电流而烧毁，另一方面，第二发光二极管505的发光面积小于整个子像素的发光面积，依然可以提高OLED的电流密度，提升发光光谱的稳定性，减小显示色偏。
当处理器或DDIC确定显示灰阶大于等于第二阈值时，处理器或DDIC向像素结构中的驱动电路发送第三控制信号，该第三控制信号指示导通第一支路开关501和第二支路开关502，从而驱动第一发光二极管504和第二发光二极管505均发光。这样，两个发光二极管可以分摊较大的工作电流，确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
本申请实施例还可以将子像素划分成包含两个以上的亚子像素，并且多个亚子像 素的发光面积渐变并依次增大。如图6所示，为本申请实施例提供的一种示例性的像素结构的截面示意图。该像素结构中，一个子像素包括三个亚子像素，相邻两个亚子像素之间设置有隔断层，两个相邻的子像素之间设置有像素定义层。该子像素的阳极被分为第一阳极、第二阳极和第三阳极，第一阳极、第二阳极和第三阳极的面积依次增大。应当理解，图6仅示出了基板层和阳极层，在基板层和阳极层之间还设置有驱动层，阳极层至少还设置有有机发光层和阴极层等。图6对应的像素结构的驱动电路中包括一个总开关和三个支路开关，每个支路开关对应一个亚子像素，每个亚子像素在对应的支路开关的作用下导通或断开。
当第一子像素的显示灰阶低于第一阈值，则控制第一亚子像素导通发光；当第一子像素的显示灰阶大于等于第一阈值，小于第二阈值时，则控制第二亚子像素发光；当第一子像素的显示灰阶大于等于第二阈值，小于第三阈值时，则控制第三亚子像素发光；当第一子像素的显示灰阶大于等于第三阈值时，则控制3个亚子像素均发光。
在一种可选的情况中，还可以根据显示灰阶的情况，仅控制第一亚子像素和第二亚子像素发光，或者仅控制第二亚子像素和第三亚子像素发光。
应当理解，当子像素包括的亚子像素的个数越多时，在根据显示灰阶控制子像素的点亮面积时，可以将显示灰阶划分成更多个分段，对应的，也存在更多种控制子像素发光面积的方案，显示灰阶的划分层次更细致，对显示效果的控制更加灵活而平滑。
如图1至图6所示的像素结构应用于自发光显示面板，本申请实施例还提供一种自发光显示面板，该自发光显示面板包括本申请实施例提供的像素结构。在一种可选的情况中，该自发光显示面板中包括的所有像素均为本申请实施例提供的像素结构，或者，该自发光显示面板中的像素部分为本申请实施例提供的像素结构。
示例性的，该自发光显示面板可以包括：Micro LED显示面板，OLED显示面板，AMOLED显示面板或PMOLED显示面板。该显示面板可以用于制作手机、智慧大屏、电视机、个人电脑、平板电脑、智能电冰箱和智能可穿戴设备等智能终端的显示屏。像素结构中包括的多个子像素包括R子像素、G子像素和B子像素，该多个子像素的排布包括RGB排布、RGBG排布或RGB delta排布。如图7a所示，为本申请实施例提供的一种示例性的RGB排布的显示面板，每个像素包含三个子像素，分别为红色子像素R、绿色子像素G和蓝色子像素B。如图7b所示，为本申请实施例提供的一种示例性的RGBG排布的显示面板，每个像素包含两个子像素，图7b中第a行中的像素1包含R、G两个子像素，像素2包含B、G两个子像素，像素3包含R、G两个子像素，像素4包含B、G两个子像素，以RG、BG的组合交替出现。如图7c所示，为本申请实施例提供的一种示例性的RGB delta排布的显示面板，每个像素均包含RGB三个子像素，相邻两个像素存在共用的子像素，以图7c中的第a行为例，像素1和像素2共用一个蓝色子像素B2，像素2和像素3共用红色子像素R2和绿色子像素G3。
如图8所示，为本申请实施例提供的一种像素结构的截面示意图。该像素结构应用于micro LED显示面板，单个子像素中设置有多个不同尺寸的micro LED，根据输入子像素的显示灰阶，控制子像素的发光面积，既保证提升子像素的电流密度，又保证每个micro LED的电流密度不超过额定电流密度。该像素结构包括：
基板层801，该基板层例如可以为柔性基板、玻璃基板或硅基背板。
设置在基板层801上的多个阳极802-805，该多个阳极具有不同的发光面积，相邻两个发光面积之间设置有平坦化层806，平坦化层806的材料可以为有机聚合物，该有机聚合物可以包括：光刻胶材料，以及氮化硅和氧化硅等无机材料。
阳极层上设置有多个micro LED807-810，该多个micro LED807-810具有不同的尺寸或者说具有不同的发光面积。micro LED制备工艺是传统三五族半导体生长工艺。相邻两个micro LED之间也设置有平坦化层806。
共面阴极811，多个micro LED807-810共用该共面阴极811。
该像素结构还包括：像素定义层812，限制子像素的大小以及防止相邻子像素之间的光学串扰。应当理解，图8中只示出了一个子像素，该子像素内部包括多个亚子像素，每个亚子像素对应一个micro LED。
在一种可选的情况中，靠近基板层801的802-805为多个面积不同的阴极，而远离基板层801的811为共面阳极。
如图9所示，为本申请实施例提供的一种显示控制装置900，该显示控制装置用于控制自发光显示面板中的像素结构，该像素结构包括多个子像素，该多个子像素中的每个子像素包括多个亚子像素，例如本申请实施例图1至图6以及图8提供的任一种像素结构，该显示控制装置900包括处理器和传输接口。该显示控制装置可以是整机中的处理器芯片或者也可以是包括处理器芯片的整机。该处理器例如可以包括通用中央处理器(Central Processing Unit，CPU)、集成在片上系统(System on Chip，SOC)上的专用处理设备，例如专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或数字信号处理器(Digital Signal Processor，DSP)、专用的视频或图形处理器、图形处理单元(Graphics Processing Unit，GPU)、应用处理器(Application Processor，AP)以及神经网络处理单元(Neural-network Processing Unit，NPU)等。该处理器还可以为DDIC。该CPU例如可以为单核CPU、多核CPU、可选的，CPU可以是多个处理器构成的处理器组，多个处理器之间通过一个或多个总线彼此耦合。
该传输接口可以为处理器芯片的接收和发送数据的接口，该传输接口通常包括多种接口，在一种可选的情况下，该传输接口可以包括内部整合电路(Inter-Integrated Circuit，I2C)接口、串行外设接口(Serial Peripheral Interface，SPI)、通用异步收发机(Universal asynchronous receiver-transmitter，UART)接口、通用输入输出(General-purpose input/output，GPIO)接口等。应当理解，这些接口可以是通过复用相同的物理接口来实现不同的功能。在一种可选的情况中，传输接口还可以包括高清晰度多媒体接口(High Definition Multimedia Interface，HDMI)、V-By-One接口、嵌入式显示端口(Embedded Display Port，eDP)、移动产业处理器接口(Mobile Industry Processor Interface，MIPI)或Display Port(DP)等。
该处理器用于：
生成至少一个控制信号；
控制传输接口将至少一个控制信号发送给第一子像素，第一子像素为多个子像素中的任一个子像素。
其中，至少一个控制信号指示控制第一子像素包括的多个亚子像素中的一个或多 个亚子像素发光。
在一种可能的实施方式中，处理器，还用于确定第一子像素的显示灰阶是否小于第一阈值；在处理器确定第一子像素的显示灰阶小于第一阈值的情况下，处理器，具体用于：生成第一控制信号，至少一个控制信号包括第一控制信号；处理器，还用于控制传输接口向第一子像素发送第一控制信号，第一控制信号指示控制第一亚子像素发光，第一亚子像素为第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
在一种可能的实施方式中，第一子像素包括第一亚子像素和第二亚子像素，第二亚子像素的发光面积大于第一亚子像素的发光面积，在确定第一子像素的显示灰阶大于等于第一阈值，且小于第二阈值的情况下，处理器，具体用于：生成第二控制信号，至少一个控制信号包括第二控制信号；处理器，还用于控制传输接口向第一子像素发送第二控制信号，第二控制信号指示控制第二亚子像素发光；其中，第二阈值大于第一阈值。
在一种可能的实施方式中，在确定第一子像素的显示灰阶大于等于第二阈值的情况下，处理器，具体用于：生成第三控制信号，至少一个控制信号包括第三控制信号；处理器，还用于控制传输接口向第一子像素发送第三控制信号，第三控制信号指示控制多个亚子像素均发光。
在一种可能的实施方式中，第一控制信号包括用于导通第一亚子像素对应的开关的使能信号，第二控制信号包括用于导通第二亚子像素对应的开关的使能信号，第三控制信号包括用于导通多个亚子像素对应的开关的多个使能信号，其中，多个使能信号与多个亚子像素一一对应。
在一种可能的实施方式中，该处理器用于：
确定第一子像素的显示灰阶是否小于第一阈值，第一子像素为像素结构的多个子像素中的任一个子像素；
应当理解，处理器可以监测输入到显示面板的各个子像素的显示灰阶，当处理器监测到显示灰阶低于第一阈值时，确定子像素当前的显示灰阶较低，可能存在显示色偏。
在处理器确定第一子像素的显示灰阶小于第一阈值的情况下，处理器还用于控制传输接口向第一子像素发送第一控制信号，第一控制信号指示控制第一亚子像素发光，第一亚子像素为第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
当第一子像素包括第一亚子像素和第二亚子像素共两个亚子像素的时候，第二亚子像素的发光面积大于第一亚子像素的发光面积，处理器，还用于：
在确定第一子像素的显示灰阶大于等于第一阈值，且小于第二阈值的情况下，控制传输接口向第一子像素发送第二控制信号，第二控制信号指示控制第二亚子像素发光；其中，第二阈值大于第一阈值。
在处理器确定第一子像素的显示灰阶大于等于第二阈值的情况下，处理器还用于控制传输接口向第一子像素发送第三控制信号，第三控制信号指示控制多个亚子像素均发光。
应当理解，本申请实施例中，一个子像素包括的多个亚子像素的发光面积通常设计成渐变的，或者说多个亚子像素的发光面积依次增大，当输入子像素的显示灰阶非 常低时，只控制发光面积最小的亚子像素导通发光，从而可以有效提升发光二极管的电流密度，使得发光二极管在输入的显示灰阶比较低的情况下，也能具有稳定的发光光谱，减小显示色偏。当子像素的显示灰阶大于等于第一阈值，且小于第二阈值时，如果驱动发光面积最小的亚子像素发光，可能使得该亚子像素的电流密度超过额定电流而烧毁，但是如果点亮整个子像素(或者说驱动子像素全面积发光)，仍然可能出现显示光谱不稳的问题，这种情况下，可以点亮发光面积较大的第二亚子像素，一方面可以提高发光二极管的电流密度，提升发光光谱的稳定性，减小显示色偏，另一方面还可以确保二极管的电流密度不超过额定电流，避免二极管被烧毁。当子像素的显示灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，这种情况下，控制所有的亚子像素均发光，以确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
在一种可能的实施方式中，第一控制信号用于指示关闭除第一亚子像素之外的其他亚子像素对应的开关，第二控制信号用于关闭除第二亚子像素之外的其他亚子像素对应的开关。
应当理解，多个亚子像素对应的开关默认导通，当处理器监测到输入子像素的显示灰阶低于第一阈值时，会发送控制信号以关闭除发光面积最小的亚子像素之外的其他亚子像素。当处理器判断显示灰阶大于第二阈值时，不发送任何控制信号，多个亚像素对应的开关均导通。
在一种可能的实施方式中，多个亚子像素对应的开关默认断开，第一控制信号包括用于导通第一亚子像素对应的开关的使能信号，第二控制信号包括用于导通第二亚子像素对应的开关的使能信号，第三控制信号包括用于导通多个亚子像素对应的开关的多个使能信号，其中，多个使能信号与多个亚子像素一一对应。
该显示控制装置900还包括：存储器，微控制器(Microcontroller Unit，MCU)、安全子系统、WLAN子系统和总线等。虽然图9中未示出，显示控制装置900还可以包括电源管理子系统、时钟管理子系统和功耗管理子系统等其他子系统。
显示控制装置900的上述各个部分通过连接器相耦合，示例性的，连接器包括各类接口、传输线或总线等，这些接口通常是电性通信接口，但是也可能是机械接口或其它形式的接口，本实施例对此不做限定。
示例性的，存储器的类型例如可以包括静态随机存取存储器(Static random-access memory，SRAM)和只读存储器(Read-Only Memory，ROM)，存储器还可以包括掉电易失性存储器(volatile memory)，例如随机存取存储器(Random Access Memory，RAM)等。
在一种可选的情况中，上述各部分集成在同一个芯片上；在另一种可选的情况中，存储器可以是独立存在的芯片。
安全子系统可以用于实现对安全认证的相关加解密算法。应当理解，与安全认证的相关加解密算法通常是硬件实现的，从而可以进一步提升加密算法的安全性。
WLAN子系统例如可以包括射频(Radio Frequency，RF)电路和基带。
在本申请实施例中涉及的芯片是以集成电路工艺制造在同一个半导体衬底上的系统，也叫半导体芯片，其可以是利用集成电路工艺制作在衬底(通常是例如硅一类的 半导体材料)上形成的集成电路的集合，其外层通常被半导体封装材料封装。所述集成电路可以包括各类功能器件，每一类功能器件包括逻辑门电路、金属氧化物半导体(Metal-Oxide-Semiconductor，MOS)晶体管、双极晶体管或二极管等晶体管，也可包括电容、电阻或电感等其他部件。每个功能器件可以独立工作或者在必要的驱动软件的作用下工作，可以实现通信、运算、或存储等各类功能。
应当理解，处理器用于调用存储在存储器中的程序代码，以实现上述相应的功能。高存储器可以是处理器芯片上的存储器，也可以是处理器芯片外的存储器，片外存储器的形态可以包括：非掉电易失性存储器，例如是EMMC(Embedded Multi Media Card，嵌入式多媒体卡)、UFS(Universal Flash Storage，通用闪存存储)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储器、光碟存储器(包括压缩光碟、激光碟、数字通用光碟或蓝光光碟等)、磁盘存储介质或者其他磁存储设备等。
如图10所示，为本申请实施例提供的一种显示控制的方法，该方法用于控制自发光显示面板中的像素结构，像素结构包括多个子像素，多个子像素中的每个子像素包括多个亚子像素，例如本申请实施例图1至图6、以及图8提供的任一种像素结构，该方法包括：
S1001、生成至少一个控制信号；
S1002、将该至少一个控制信号发送给第一子像素，第一子像素为像素结构的多个子像素中的任一个子像素；
该至少一个控制信号指示控制第一子像素包括的多个亚子像素中的一个或多个亚子像素发光。
在一种可能的实施方式中，该方法还包括：确定第一子像素的显示灰阶是否小于第一阈值；在确定第一子像素的显示灰阶小于第一阈值的情况下，生成第一控制信号，至少一个控制信号包括第一控制信号；向第一子像素发送第一控制信号，第一控制信号指示控制第一亚子像素发光，第一亚子像素为第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
在一种可能的实施方式中，第一子像素包括第一亚子像素和第二亚子像素，第二亚子像素的发光面积大于第一亚子像素的发光面积，该方法还包括：在确定第一子像素的显示灰阶大于等于第一阈值，且小于第二阈值的情况下，生成第二控制信号，至少一个控制信号包括第二控制信号；向第一子像素发送第二控制信号，第二控制信号指示控制第二亚子像素发光；其中，第二阈值大于第一阈值。
在一种可能的实施方式中，第一控制信号用于指示关闭除第一亚子像素之外的其他亚子像素对应的开关，第二控制信号用于关闭除第二亚子像素之外的其他亚子像素对应的开关。
在一种可能的实施方式中，该方法还包括：在确定第一子像素的显示灰阶大于等于第二阈值的情况下，生成第三控制信号，至少一个控制信号包括第三控制信号；向第一子像素发送第三控制信号，第三控制信号指示控制多个亚子像素均发光。
在一种可能的实施方式中，第一控制信号包括用于导通第一亚子像素对应的开关 的使能信号，第二控制信号包括用于导通第二亚子像素对应的开关的使能信号，第三控制信号包括用于导通多个亚子像素对应的开关的多个使能信号，其中，多个使能信号与多个亚子像素一一对应。
如图11所示，为本申请实施例提供的一种显示控制的方法，该方法用于控制自发光显示面板中的像素结构，像素结构包括多个子像素，多个子像素中的每个子像素包括多个亚子像素，例如本申请实施例图1至图6、以及图8提供的任一种像素结构，该方法包括：
S1101、确定第一子像素的显示灰阶是否小于第一阈值，第一子像素为多个子像素中的任一个子像素；
S1102、在确定第一子像素的显示灰阶小于第一阈值的情况下，向第一子像素发送第一控制信号，第一控制信号指示控制第一亚子像素发光，第一亚子像素为第一子像素包括的多个亚子像素中发光面积最小的亚子像素；
可选的，该方法还包括：
S1103、在确定第一子像素的显示灰阶大于等于第一阈值，且小于第二阈值的情况下，向第一子像素发送第二控制信号，第二控制信号指示控制第二亚子像素发光；
其中，所述第一子像素包括所述第一亚子像素和第二亚子像素，所述第二亚子像素的发光面积大于所述第一亚子像素的发光面积，第二阈值大于第一阈值。
S1104、在确定第一子像素的显示灰阶大于等于第二阈值的情况下，向第一子像素发送第三控制信号，第三控制信号指示控制多个亚子像素均发光。
应当理解，本申请实施例中，一个子像素包括的多个亚子像素的发光面积通常设计成渐变的，或者说多个亚子像素的发光面积依次增大，当输入子像素的显示灰阶非常低时，只控制发光面积最小的亚子像素导通发光，从而可以有效提升发光二极管的电流密度，使得发光二极管在输入的显示灰阶比较低的情况下，也能具有稳定的发光光谱，减小显示色偏。当子像素的显示灰阶大于等于第一阈值，且小于第二阈值时，如果驱动发光面积最小的亚子像素发光，可能使得该亚子像素的电流密度超过额定电流而烧毁，但是如果点亮整个子像素(或者说驱动子像素全面积发光)，仍然可能出现显示光谱不稳的问题，这种情况下，可以点亮发光面积较大的第二亚子像素，一方面可以提高发光二极管的电流密度，提升发光光谱的稳定性，减小显示色偏，另一方面还可以确保二极管的电流密度不超过额定电流，避免二极管被烧毁。当子像素的显示灰阶大于第二阈值时，子像素的发光光谱趋于稳定，显示的颜色也准确均匀，这种情况下，控制所有的亚子像素均发光，以确保每个亚子像素的电流密度均在额定范围内，实现子像素全面积点亮，提升子像素的显示效率。
在一种可能的实施方式中，第一控制信号包括用于导通第一亚子像素对应的开关的使能信号，第二控制信号包括用于导通第二亚子像素对应的开关的使能信号，第三控制信号包括用于导通多个亚子像素对应的开关的多个使能信号，其中，多个使能信号与多个亚子像素一一对应。
在一种可能的实施方式中，第一控制信号用于指示关闭除第一亚子像素之外的其他亚子像素对应的开关，第二控制信号用于关闭除第二亚子像素之外的其他亚子像素对应的开关。
应当理解，S1101-S1104的标号并不限定方法的执行顺序，步骤S1101-S1104通常可以是同步执行或有先后顺序的，或者步骤与步骤之间也可以不是严格同步执行，而是彼此之间存在一些时间差，本申请实施例对此不作限定。
如图12所示，为本申请实施例提供的一种显示控制装置1200的结构示意图。应当理解，前述图9中处理器和传输接口实现的功能均可以由运行在如图12所示的显示控制装置上的功能单元完成。该功能单元可以是硬件实现、软件实现或者软件和硬件协同实现。显示控制装置1200包括：确定单元1210和发送单元1220，该确定单元1210用于实现前述图9中处理器的相关功能，该发送单元1220用于实现前述图9中传输接口的相关功能。
本领域的技术人员可以了解到，在本申请实施例仅以上述各功能模块的划分进行举例说明，所述单元的划分，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，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一个物理单元或多个物理单元，另外，多个单元可以结合或者可以集成到另一个装置。实际应用中，可以根据需要将装置的内部结构划分成不同的功能单元，以完成以上描述的全部或者部分功能。
如图13，为本申请实施例提供的一种低显示灰阶下的绿色子像素的色坐标仿真图。应当理解，本申请实施例采用CIE色坐标变化表示OLED光谱漂移，并以G子像素为例进行仿真，横坐标表示显示面板的显示亮度，单位为nit，显示亮度与显示灰阶一一对应；纵坐标表示G子像素的CIE色坐标，CIE色坐标包括CIEx坐标和CIEy坐标，通常来说，当CIEx小于0.264，CIEy坐标大于0.7时，表明绿色光的颜色是稳定可接受的，否则，表明绿色光存在色偏。
图13所示的仿真图对应的像素结构，将子像素分成了两个亚子像素，当两个亚子像素的发光面积比为1:4时，记为AR’4，当两个亚子像素的发光面积比为1:10时，记为AR’10，由图中可以看出，对于传统的像素结构，显示面板的显示亮度需要大于3nits，对应显示灰阶大于32，才可以获得可接受的绿光；当两个亚子像素的发光面积比为1:4时，显示亮度大于0.83nits时，对应显示灰阶为18，可以获得可接受的绿光；当两个亚子像素的发光面积比为1:10时，显示亮度大于0.21nits时，对应显示灰阶为12，可以获得可接受的绿光。因此，可以得到，本申请实施例提供的像素结构可以有效改善低显示灰阶下的显示色偏问题。
本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机或处理器上运行时，使得计算机或处理器执行本申请实施例提供的显示控制方法实施例中的部分或全部步骤。
本申请实施例还提供一种包含指令的计算机程序产品，当其在计算机或处理器上运行时，使得计算机或处理器执行本申请实施例提供的显示控制方法实施例中的部分或全部步骤。
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (26)

  1. 一种像素结构，其特征在于，所述像素结构应用于自发光显示面板，所述像素结构包括：多个子像素，所述多个子像素中的至少一个子像素包括多个亚子像素，所述至少一个子像素中的相邻两个亚子像素之间设置有隔断层；
    所述多个亚子像素的发光分别独立控制。
  2. 根据权利要求1所述的像素结构，其特征在于，第一子像素包括第一亚子像素和第二亚子像素，所述第一子像素为所述多个子像素中的任一个子像素，所述第一亚子像素的发光面积小于所述第二亚子像素的发光面积；所述第一亚子像素发光，或，所述第二亚子像素发光，或所述第一亚子像素和所述第二亚子像素均发光。
  3. 根据权利要求2所述的像素结构，其特征在于，
    当所述第一子像素的显示灰阶小于第一阈值时，所述第一亚子像素发光。
    当所述第一子像素的显示灰阶大于等于所述第一阈值，小于第二阈值时，所述第二亚子像素发光；所述第二阈值大于所述第一阈值；
    当所述第一子像素的显示灰阶大于等于所述第二阈值时，所述第一亚子像素和所述第二亚子像素均发光。
  4. 根据权利要求1至3任一项所述的像素结构，其特征在于，所述隔断层的侧表面与第一平面的夹角小于等于90度，所述第一平面与所述像素结构的表面所在的平面平行。
  5. 根据权利要求1至4任一项所述的像素结构，其特征在于，所述多个亚子像素中的每个亚子像素包括阳极层、有机发光层和阴极层，所述有机发光层位于所述阳极层和所述阴极层之间；
    相邻两个亚子像素的阳极层之间设置有所述隔断层；且，
    相邻两个亚子像素的有机发光层之间设置有所述隔断层；
    所述多个亚子像素共用同一个阴极层。
  6. 根据权利要求1至5任一项所述的像素结构，其特征在于，所述像素结构还包括：驱动层，所述驱动层上设置有驱动电路，所述多个子像素中的每个子像素对应一个驱动电路，所述驱动电路用于分别独立控制所述多个亚子像素发光；
    所述驱动电路包括多个支路开关，所述多个支路开关的个数与一个子像素包括的亚子像素的个数相等，且一个支路开关对应一个亚子像素；
    所述多个亚子像素中每个亚子像素包括一个发光二极管，所述支路开关用于控制对应的亚子像素中的发光二极管的导通或断开。
  7. 根据权利要求6所述的像素结构，其特征在于，所述支路开关串联在对应的发光二极管的支路中，所述支路开关具体用于接收控制信号，并在所述控制信号的作用下导通或断开，以使得所述支路开关所在支路的发光二极管导通或断开。
  8. 根据权利要求6或7所述的像素结构，其特征在于，所述多个支路开关并联，所述驱动电路还包括一个总开关，所述多个支路开关并联之后与所述总开关串联，所 述总开关连接至所述驱动电路的输入端，当向所述输入端输入驱动电压时，所述总开关导通，所述驱动电压与所述驱动电路对应的子像素的显示灰阶对应。
  9. 一种自发光显示面板，其特征在于，所述自发光显示面板包括如权利要求1至8任一项所述的像素结构。
  10. 一种显示控制装置，其特征在于，所述显示控制装置用于控制自发光显示面板中的像素结构，所述像素结构包括多个子像素，所述多个子像素中的每个子像素包括多个亚子像素，所述显示控制装置包括：处理器和传输接口，
    所述处理器，用于生成至少一个控制信号；
    所述处理器，还用于控制所述传输接口将所述至少一个控制信号发送给第一子像素，所述第一子像素为所述多个子像素中的任一个子像素；
    其中，所述至少一个控制信号指示控制所述第一子像素包括的多个亚子像素中的一个或多个亚子像素发光。
  11. 根据权利要求10所述的显示控制装置，其特征在于，所述处理器，还用于确定所述第一子像素的显示灰阶是否小于第一阈值；
    在所述处理器确定所述第一子像素的显示灰阶小于所述第一阈值的情况下，所述处理器，具体用于：生成第一控制信号，所述至少一个控制信号包括所述第一控制信号；
    所述处理器，还用于控制所述传输接口向所述第一子像素发送所述第一控制信号，所述第一控制信号指示控制第一亚子像素发光，所述第一亚子像素为所述第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
  12. 根据权利要求11所述的显示控制装置，其特征在于，所述第一子像素包括所述第一亚子像素和第二亚子像素，所述第二亚子像素的发光面积大于所述第一亚子像素的发光面积，
    在确定所述第一子像素的显示灰阶大于等于所述第一阈值，且小于第二阈值的情况下，所述处理器，具体用于：生成第二控制信号，所述至少一个控制信号包括所述第二控制信号；
    所述处理器，还用于控制所述传输接口向所述第一子像素发送所述第二控制信号，所述第二控制信号指示控制所述第二亚子像素发光；
    其中，所述第二阈值大于所述第一阈值。
  13. 根据权利要求12所述的显示控制装置，其特征在于，所述第一控制信号用于指示关闭除所述第一亚子像素之外的其他亚子像素对应的开关，所述第二控制信号用于关闭除所述第二亚子像素之外的其他亚子像素对应的开关。
  14. 根据权利要求12所述的显示控制装置，其特征在于，
    在确定所述第一子像素的显示灰阶大于等于所述第二阈值的情况下，所述处理器，具体用于：生成第三控制信号，所述至少一个控制信号包括所述第三控制信号；
    所述处理器，还用于控制所述传输接口向所述第一子像素发送所述第三控制信号，所述第三控制信号指示控制所述多个亚子像素均发光。
  15. 根据权利要求14所述的显示控制装置，其特征在于，所述第一控制信号包括用于导通所述第一亚子像素对应的开关的使能信号，所述第二控制信号包括用于导通所述第二亚子像素对应的开关的使能信号，所述第三控制信号包括用于导通所述多个亚子像素对应的开关的多个使能信号，其中，所述多个使能信号与所述多个亚子像素一一对应。
  16. 根据权利要求10至15任一项所述的显示控制装置，其特征在于，所述自发光显示面板包括有机发光二极管OLED显示面板，有源矩阵有机发光二极管AMOLED显示面板或微发光二极管micro LED显示面板。
  17. 一种显示控制的方法，其特征在于，所述方法用于控制自发光显示面板中的像素结构，所述像素结构包括多个子像素，所述多个子像素中的每个子像素包括多个亚子像素，所述方法包括：
    生成至少一个控制信号；
    将所述至少一个控制信号发送给第一子像素，所述第一子像素为所述多个子像素中的任一个子像素；
    其中，所述至少一个控制信号指示控制所述第一子像素包括的多个亚子像素中的一个或多个亚子像素发光。
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：
    确定所述第一子像素的显示灰阶是否小于第一阈值；
    在确定所述第一子像素的显示灰阶小于所述第一阈值的情况下，生成第一控制信号，所述至少一个控制信号包括所述第一控制信号；
    向所述第一子像素发送所述第一控制信号，所述第一控制信号指示控制第一亚子像素发光，所述第一亚子像素为所述第一子像素包括的多个亚子像素中发光面积最小的亚子像素。
  19. 根据权利要求18所述的方法，其特征在于，所述第一子像素包括所述第一亚子像素和第二亚子像素，所述第二亚子像素的发光面积大于所述第一亚子像素的发光面积，所述方法还包括：
    在确定所述第一子像素的显示灰阶大于等于所述第一阈值，且小于第二阈值的情况下，生成第二控制信号，所述至少一个控制信号包括所述第二控制信号；
    向所述第一子像素发送所述第二控制信号，所述第二控制信号指示控制所述第二亚子像素发光；
    其中，所述第二阈值大于所述第一阈值。
  20. 根据权利要求19所述的方法，其特征在于，所述第一控制信号用于指示关闭除所述第一亚子像素之外的其他亚子像素对应的开关，所述第二控制信号用于关闭除所述第二亚子像素之外的其他亚子像素对应的开关。
  21. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    在确定所述第一子像素的显示灰阶大于等于所述第二阈值的情况下，生成第三控制信号，所述至少一个控制信号包括所述第三控制信号；
    向所述第一子像素发送所述第三控制信号，所述第三控制信号指示控制所述多个亚子像素均发光。
  22. 根据权利要求21所述的方法，其特征在于，所述第一控制信号包括用于导通所述第一亚子像素对应的开关的使能信号，所述第二控制信号包括用于导通所述第二亚子像素对应的开关的使能信号，所述第三控制信号包括用于导通所述多个亚子像素对应的开关的多个使能信号，其中，所述多个使能信号与所述多个亚子像素一一对应。
  23. 根据权利要求17至22任一项所述的方法，其特征在于，所述自发光显示面板包括有机发光二极管OLED显示面板，有源矩阵有机发光二极管AMOLED显示面板或微发光二极管micro LED显示面板。
  24. 一种终端，其特征在于，所述终端包括如权利要求9所述的自发光显示面板和如权利要求10至16任一项所述的显示控制装置。
  25. 一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当所述指令在计算机或处理器上运行时，使得所述计算机或处理器执行如权利要求17-23任一项所述的方法。
  26. 一种包含指令的计算机程序产品，当其在计算机或处理器上运行时，使得所述计算机或处理器执行如权利要求17-23任一项所述的方法。
PCT/CN2020/138928 2020-12-24 2020-12-24 一种像素结构和显示面板 WO2022133881A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2020/138928 WO2022133881A1 (zh) 2020-12-24 2020-12-24 一种像素结构和显示面板
CN202080106769.5A CN116472573A (zh) 2020-12-24 2020-12-24 一种像素结构和显示面板
EP20966453.1A EP4254388A4 (en) 2020-12-24 2020-12-24 PIXEL STRUCTURE AND DISPLAY PANEL
US18/339,398 US20230337464A1 (en) 2020-12-24 2023-06-22 Pixel structure and display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/138928 WO2022133881A1 (zh) 2020-12-24 2020-12-24 一种像素结构和显示面板

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/339,398 Continuation US20230337464A1 (en) 2020-12-24 2023-06-22 Pixel structure and display panel

Publications (1)

Publication Number Publication Date
WO2022133881A1 true WO2022133881A1 (zh) 2022-06-30

Family

ID=82158622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/138928 WO2022133881A1 (zh) 2020-12-24 2020-12-24 一种像素结构和显示面板

Country Status (4)

Country Link
US (1) US20230337464A1 (zh)
EP (1) EP4254388A4 (zh)
CN (1) CN116472573A (zh)
WO (1) WO2022133881A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070058115A1 (en) * 2005-09-12 2007-03-15 Yuka Utsumi Liquid crystal display apparatus
CN102820000A (zh) * 2006-12-27 2012-12-12 全球Oled科技有限责任公司 具有改进的视觉一致性和清晰度的显示器
KR20140017225A (ko) * 2012-07-31 2014-02-11 엘지디스플레이 주식회사 입체 영상 표시장치
CN104077966A (zh) * 2013-03-25 2014-10-01 株式会社日本显示器 显示装置以及电子设备
CN104835468A (zh) * 2015-05-21 2015-08-12 深圳市华星光电技术有限公司 液晶面板及其驱动方法
US20150241750A1 (en) * 2014-02-21 2015-08-27 Samsung Display Co., Ltd. Liquid crystal display
CN107275360A (zh) * 2016-04-01 2017-10-20 乐金显示有限公司 有机发光显示装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002313570A (ja) * 2001-04-13 2002-10-25 Toyota Motor Corp 有機ｅｌ素子
JP4211800B2 (ja) * 2006-04-19 2009-01-21 セイコーエプソン株式会社 電気光学装置、電気光学装置の駆動方法および電子機器
KR101533764B1 (ko) * 2009-05-01 2015-07-06 엘지디스플레이 주식회사 유기전계발광소자와 그 구동방법 및 제조방법
KR102020805B1 (ko) * 2012-12-28 2019-09-11 엘지디스플레이 주식회사 투명 유기 발광 표시 장치 및 투명 유기 발광 표시 장치 제조 방법
JP6285158B2 (ja) * 2013-11-26 2018-02-28 株式会社ジャパンディスプレイ 有機ｅｌ表示装置
JP6405599B2 (ja) * 2014-09-04 2018-10-17 株式会社Ｊｏｌｅｄ 表示装置及びその駆動方法
CN206564254U (zh) * 2017-03-07 2017-10-17 京东方科技集团股份有限公司 一种oled阵列基板和显示装置
US12114519B2 (en) * 2019-02-21 2024-10-08 Sharp Kabushiki Kaisha Light-emitting element and display device
CN110456585B (zh) * 2019-08-19 2022-09-23 京东方科技集团股份有限公司 双栅阵列基板和显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070058115A1 (en) * 2005-09-12 2007-03-15 Yuka Utsumi Liquid crystal display apparatus
CN102820000A (zh) * 2006-12-27 2012-12-12 全球Oled科技有限责任公司 具有改进的视觉一致性和清晰度的显示器
KR20140017225A (ko) * 2012-07-31 2014-02-11 엘지디스플레이 주식회사 입체 영상 표시장치
CN104077966A (zh) * 2013-03-25 2014-10-01 株式会社日本显示器 显示装置以及电子设备
US20150241750A1 (en) * 2014-02-21 2015-08-27 Samsung Display Co., Ltd. Liquid crystal display
CN104835468A (zh) * 2015-05-21 2015-08-12 深圳市华星光电技术有限公司 液晶面板及其驱动方法
CN107275360A (zh) * 2016-04-01 2017-10-20 乐金显示有限公司 有机发光显示装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4254388A4 *

Also Published As

Publication number Publication date
EP4254388A1 (en) 2023-10-04
CN116472573A (zh) 2023-07-21
US20230337464A1 (en) 2023-10-19
EP4254388A4 (en) 2023-11-08

Similar Documents

Publication Publication Date Title
KR100461467B1 (ko) 능동행렬 유기전기발광소자
KR101228885B1 (ko) 유기발광표시장치 및 그 제조방법
KR101158873B1 (ko) 유기전계발광 표시장치
CN113196160A (zh) 阵列基板及其制作方法、显示装置以及显示基板
US11961471B2 (en) Display substrate and display device
KR101576756B1 (ko) 유기 전계발광 어레이 기판, 그것의 제조 방법 및 디스플레이 디바이스
WO2021103010A1 (zh) 显示基板及显示装置
KR101614876B1 (ko) 유기 발광 표시 장치
KR100453634B1 (ko) 능동행렬 유기전기발광소자
WO2023071560A1 (zh) 显示模组和显示设备
WO2022242287A1 (zh) 像素驱动电路、显示面板及其控制方法和显示设备
KR20120020087A (ko) 유기전계발광소자
WO2019100420A1 (zh) 显示面板及具有该显示面板的显示装置
US20220293059A1 (en) Array substrate and method for manufacturing same and method for controlling same, and display apparatus
US11790847B2 (en) Display substrate and display device
KR20140129852A (ko) 유기 발광 표시 장치
KR20050031395A (ko) 유기 ｅｌ 패널
WO2024041314A1 (zh) 像素电路、驱动方法及显示装置
CN110323357B (zh) 有机发光二极管、显示面板及显示装置
WO2022133881A1 (zh) 一种像素结构和显示面板
KR20200123314A (ko) 표시 장치
TW201517260A (zh) 主動式矩陣有機發光二極體畫素結構
KR100834345B1 (ko) 유기전기발광소자
KR100426132B1 (ko) 유기전기발광소자
CN116994527A (zh) 显示装置及其制备方法

Legal Events

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

Ref document number: 20966453

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202080106769.5

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2020966453

Country of ref document: EP

Effective date: 20230626

NENP Non-entry into the national phase

Ref country code: DE