WO2023137828A1 - 像素补偿方法、像素补偿结构及显示面板 - Google Patents

像素补偿方法、像素补偿结构及显示面板 Download PDF

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Publication number
WO2023137828A1
WO2023137828A1 PCT/CN2022/077994 CN2022077994W WO2023137828A1 WO 2023137828 A1 WO2023137828 A1 WO 2023137828A1 CN 2022077994 W CN2022077994 W CN 2022077994W WO 2023137828 A1 WO2023137828 A1 WO 2023137828A1
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Prior art keywords
pixel
compensation
data
sub
compensated
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PCT/CN2022/077994
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English (en)
French (fr)
Inventor
陈明耀
陈锦奥
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US17/761,310 priority Critical patent/US12243487B2/en
Publication of WO2023137828A1 publication Critical patent/WO2023137828A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • G09G3/3258—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 voltage across the light-emitting element
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    • 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]
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    • 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]
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    • G—PHYSICS
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    • G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
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    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
    • G09G2360/148—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel the light being detected by light detection means within each pixel

Definitions

  • the present application relates to the field of display technology, in particular to a pixel compensation method, a pixel compensation structure and a display panel.
  • a pixel circuit includes a display unit, a thin film transistor (Thin Film Transistor, TFT) and a storage capacitor (Capacitance).
  • TFT Thin Film Transistor
  • Capacitance Capacitance
  • the process stability of TFT has been an important issue of the display screen, and it is also the main factor affecting the display screen.
  • organic materials will gradually age over time and cannot be recovered. In areas that have been lit for a long time, they will age faster, resulting in afterimages on the image screen.
  • the current external compensation technology can compensate the instability of TFT, including cut-off voltage and mobility, etc., and is often applied to medium and large-sized displays.
  • electrical compensation can determine the data to be compensated by obtaining the voltage or current through the sensing signal line to realize the compensation of TFT characteristics; optical compensation can compensate the uniformity of the panel at one time, and since it is compensated and corrected through optical methods, it can effectively compensate for problems caused by various reasons, such as Mura generated by process equipment, etc.
  • the present application provides a pixel compensation method, a pixel compensation structure, and a display panel that can perform optical data sensing and compensation for pixel units of a display device, and at the same time calculate the optical characteristics of pixel units without optical data sensing functions, realize fast compensation and save storage space.
  • the present application provides a pixel compensation method, including:
  • the pixel unit to be compensated includes a first sub-pixel and a second sub-pixel adjacent to the first sub-pixel, the first sub-pixel is configured with a sensing component for sensing brightness intensity;
  • second compensation data of the second sub-pixel is determined.
  • the pixel unit to be compensated includes a plurality of sub-pixels to be compensated with different pixel colors
  • the driving of the pixel unit to be compensated that requires pixel compensation to emit light includes:
  • the sensing component includes a current multiplier
  • the acquiring the actual optical sensing data of the pixel unit to be compensated includes:
  • the acquiring the actual optical sensing data of the pixel unit to be compensated includes:
  • the fused optical sensing data is the optical sensing data sensed when the pixels to be compensated of the same color emit light at the same time;
  • a plurality of fused optical sensing data are used as actual optical sensing data of the pixel unit to be compensated.
  • the sequentially acquiring a plurality of fused optical sensing data respectively corresponding to the sub-pixels to be compensated with different pixel colors includes:
  • a plurality of sub-pixels to be compensated of the same color in the pixel unit to be compensated are turned on;
  • the actual optical sensing data includes first actual optical sensing data corresponding to the first sub-pixel
  • the determining the first compensation data of the first sub-pixel according to the actual optical sensing data includes:
  • the first compensation data of the first sub-pixel is determined according to the grayscale-brightness characteristic curve associated with the first sub-pixel.
  • determining the first compensation data of the first sub-pixel according to the grayscale-brightness characteristic curve associated with the first sub-pixel includes:
  • first compensation data of the first sub-pixel is determined.
  • the actual optical sensing data includes second actual optical sensing data corresponding to the second sub-pixel
  • determining the second compensation data of the second sub-pixel according to the first compensation data includes:
  • the center compensation data is used as the second compensation data of the second sub-pixel that needs to be compensated currently.
  • the determining the center compensation data corresponding to the central pixel to be compensated according to the compensation reference data of the M compensation reference pixels includes:
  • the determining the center compensation data corresponding to the central pixel to be compensated according to the compensation reference data of the M compensation reference pixels includes:
  • determining the center compensation data corresponding to the center pixel to be compensated according to the sorted (M-2) compensation reference data and (M-2) brightness gain data includes:
  • a product value obtained by multiplying the sum of the compensation reference data and the average value of the brightness gain data is used as the center compensation data corresponding to the central pixel to be compensated.
  • the acquiring the compensation reference data of M compensation reference pixels adjacent to the central pixel to be compensated includes:
  • the acquisition of all target pixels in the pixel array with specifications (2m+1, 2n+1) around the central pixel to be compensated includes:
  • the present application provides a pixel compensation structure
  • the pixel compensation structure includes a pixel unit to be compensated
  • the pixel unit to be compensated includes a first sub-pixel and second sub-pixels adjacent to the first sub-pixel and arranged in a staggered arrangement
  • the first sub-pixel is configured with a sensing component for sensing brightness intensity
  • every two adjacent sensing components are connected to the same sensing line
  • the pixel compensation structure adopts the pixel compensation method as described above.
  • the first pixel unit and the second pixel unit are four-color pixel units.
  • the first pixel unit and the second pixel unit are arranged in a row-wise staggered manner.
  • the first pixel unit and the second pixel unit are arranged in a row or vertically staggered manner.
  • the first pixel unit and the second pixel unit are arranged in a fixed row arrangement.
  • the first pixel unit and the second pixel unit are arranged in a fixed column arrangement.
  • the present application also provides a display panel, which includes the pixel compensation structure as described above.
  • This application drives the pixel unit to be compensated that requires pixel compensation to emit light, and obtains the actual optical sensing data of the pixel unit to be compensated through the first sub-pixel configured with a sensing component for sensing brightness intensity, determines the first compensation data of the first sub-pixel according to the actual optical sensing data, and determines the second compensation data of the second sub-pixel that is not equipped with a sensing component according to the first compensation data, and realizes pixel compensation for all pixels of the pixel unit to be compensated. Since only the first sub-pixel is configured with a sensing component in this application, the complexity of hardware design is reduced, and the pixel drive is correspondingly reduced. The complexity of the program achieves the purpose of fast compensation and saving storage space.
  • Fig. 1 is the structural representation of the photosensitive detection circuit provided in the prior art of the present application.
  • FIG. 2 is a schematic structural diagram of a pixel compensation structure provided in the prior art of the present application.
  • FIG. 3 is a schematic structural diagram of a pixel compensation structure provided in the prior art of the present application.
  • FIG. 4 is a schematic structural diagram of a pixel compensation structure provided in the prior art of the present application.
  • FIG. 5 is a schematic structural diagram of a pixel compensation structure provided in the prior art of the present application.
  • Fig. 6 is a schematic structural diagram of an embodiment of the pixel compensation structure provided in the embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of an embodiment of the pixel compensation structure provided in the embodiment of the present application.
  • Fig. 8 is a schematic flowchart of an embodiment of the pixel compensation method provided in the embodiment of the present application.
  • first and second are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features.
  • a feature defined as “first” or “second” may explicitly or implicitly include one or more of said features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • Sense_sw refers to the sensing switch
  • REF_TFT refers to the reference voltage of TFT
  • INTRST refers to the reset switch
  • Cf refers to the high-frequency capacitor
  • cF refers to the motherboard chip capacitor
  • FA refers to the isolation switch
  • LPF refers to the low-pass filter
  • CDS1A ⁇ CDS2A and CDS1B ⁇ CDS2B all refer to the control switch
  • MUX refers to the data selector or current Integrator
  • ADC refers to digital-to-analog converter.
  • FIG. 2 shows an arrangement of four-color pixel units proposed in the prior art.
  • the four-color pixel unit refers to the addition of a sub-pixel on the basis of the traditional three-color pixel unit, that is, four-color sub-pixels. At present, most of them add white (White) to red (Red), green (Green), and blue (Blue), and sometimes add yellow (Y).
  • Figure 2 shows RGBW four kinds of pixels. are the data lines connected to the pixels in the pixel unit.
  • the obtained pixel unit structure can be as shown in FIG. 3 , wherein each sub-pixel of the pixel unit is provided with a photosensitive detection component, and the photosensitive detection component can be disposed above or around the sub-pixel, and sub-pixels of the same color in the same longitudinal direction of multiple pixel units share the same sensing line, wherein j refers to the column number of the pixel unit, and SL refers to the sensing line connected to the pixel in the pixel unit.
  • the light quantity of each sub-pixel is sensed by the light-sensitive sensing component, and the compensation data of the corresponding sub-pixel is obtained through a specific algorithm, and the compensation data may be the pixel value of the sub-pixel.
  • the pixel unit structure as shown in Figure 4 can be obtained.
  • the pixel unit structure setting method shown in Figure 4 is that only two sub-pixels in the same pixel unit are provided with light-sensitive detection components, and the two sub-pixels equipped with light-sensitive detection components in adjacent pixel units are different.
  • the light-sensitive detection components in two adjacent pixel units can be arranged vertically and vertically in rows as shown in FIG. Refers to a sensing line connected to a pixel in a pixel unit.
  • the OLED device will also begin to age as the usage time increases.
  • the structure is more complicated, and the implementation of the corresponding driving level will also be more complicated. All compensation parameters need to be stored, and the storage space required is large.
  • embodiments of the present application provide a pixel compensation method, a pixel compensation structure, and a display panel, which will be described in detail below.
  • the present application provides a pixel compensation structure.
  • the pixel compensation method structure includes a pixel unit to be compensated, and the pixel unit to be compensated includes a first sub-pixel 100 and second sub-pixels 200 adjacent to the first sub-pixel 100 and arranged in a staggered arrangement.
  • the first sub-pixel 100 is configured with a sensing component 300 for sensing brightness intensity, and every two adjacent sensing components 300 are connected to the same sensing line.
  • the pixel compensation structure includes a pixel unit to be compensated.
  • the pixel unit to be compensated includes a plurality of first sub-pixels 100 and a plurality of second sub-pixels 200. Every four adjacent first sub-pixels 100 constitute a first pixel unit, and every four adjacent second sub-pixels 200 constitute a second pixel unit. Both the first pixel unit and the second pixel unit are four-color pixel units. (Red), green (Green), blue (Blue) plus white (White) in order.
  • the staggered arrangement of the first sub-pixels 100 and the second sub-pixels 200 may be a row-wise staggered arrangement as shown in FIG. 6, or a row or vertical staggered arrangement as shown in FIG.
  • every two adjacent first sub-pixels 100 share one sensing line, for example, the sensing unit 300 on the red sub-pixel and the sensing unit 300 on the green sub-pixel share one sensing line as a group, and the sensing unit 300 on the blue sub-pixel and the sensing unit 300 on the white sub-pixel share one sensing line as a group.
  • the higher the ratio of sensing lines is shared the fewer sensing lines are required, the simpler the hardware design, and the lower the design cost. Therefore, in this embodiment, the number of sensing lines used and the manner in which multiple sub-pixels share the sensing lines are not specifically limited.
  • the embodiment of the present application also provides a pixel compensation method, as shown in FIG. 8 , which is a schematic flowchart of an embodiment of the pixel compensation method in the embodiment of the present application.
  • the pixel compensation method includes the following steps 401-404:
  • An appropriate driving voltage is input to the pixel unit to be compensated through an external drive circuit, and the pixel unit to be compensated that needs to be compensated is driven to emit light.
  • the pixel unit to be compensated includes a plurality of sub-pixels to be compensated with different pixel colors
  • driving the pixel unit to be compensated that requires pixel compensation to emit light includes: sequentially driving the plurality of sub-pixels to be compensated to emit light sequentially and intermittently according to the arrangement order of the pixel colors in the sub-pixels to be compensated.
  • the pixel unit to be compensated includes a first sub-pixel 100 and a second sub-pixel 200 adjacent to the first sub-pixel 100.
  • the first sub-pixel 100 is configured with a sensing component 300 for sensing brightness intensity.
  • the sensing unit 300 configured with the first sub-pixel 100 detects the luminous brightness of the pixel unit to be compensated. Based on the circuit shown in FIG. 1 , the sensing unit 300 changes the current and voltage during the detection process, and finally forms corresponding current data in the current multiplier.
  • the current data is the actual optical sensing data of the pixel unit to be compensated. .
  • the actual optical sensing data sensed by the sensing component 300 deviates.
  • the optical sensing data of sub-pixels to be compensated with different pixel colors can be acquired in time-sharing. Therefore, driving the pixel unit to be compensated that requires pixel compensation to emit light includes:
  • a plurality of fused optical sensing data respectively corresponding to a plurality of sub-pixels to be compensated of different pixel colors is sequentially acquired, the fused optical sensing data is the optical sensing data sensed when the pixels to be compensated of the same color emit light at the same time, and the plurality of fused optical sensing data are used as the actual optical sensing data of the pixel unit to be compensated.
  • the sensing unit 300 can simultaneously sense the brightness of the surrounding first sub-pixels 100 and second sub-pixels 200 of the same color, thereby obtaining fused optical sensing data corresponding to the color.
  • the surrounding first sub-pixels 100 and second sub-pixels 200 perform brightness sensing, and repeat the above steps until the fused optical sensing data of all sub-pixels of the same color are obtained, and then integrate a plurality of fused optical sensing data as the actual optical sensing data of the pixel unit to be compensated. Using this optical sensing method, the efficiency of obtaining the optical sensing data of the pixel unit to be compensated is effectively improved.
  • the actual optical sensing data includes first actual optical sensing data corresponding to the first sub-pixel 100. After all the actual optical sensing data are collected by the previous steps, a gray scale-brightness characteristic curve associated with the first sub-pixel 100 may be generated based on the first actual optical sensing data, and first compensation data of the first sub-pixel 100 may be determined according to the gray scale-brightness characteristic curve associated with the first sub-pixel 100.
  • determining the first compensation data of the first sub-pixel 100 includes: acquiring first theoretical optical sensing data corresponding to the first sub-pixel 100, and determining the first compensation data of the first sub-pixel 100 according to the first theoretical optical sensing data and the first actual optical sensing data.
  • the driving signal used to drive the first sub-pixel 100 to display a specified grayscale value is set as the driving signal V1.
  • the optical sensing data sensed by the sensing component 300 is the first actual optical sensing data corresponding to the first sub-pixel.
  • the optical sensing data that should be possessed after the driving signal V1 is applied to the first sub-pixel 100 is the first theoretical optical sensing data corresponding to the first sub-pixel. Therefore, by comparing the first actual optical sensing data with the first theoretical optical sensing data, the brightness compensation value of the first sub-pixel can be obtained, and the first compensation data can be determined according to the brightness compensation value.
  • the second compensation data corresponding to the second pixel unit can be determined by optical sensing data of a plurality of first pixel units closest to the second pixel unit.
  • the pixel unit to be compensated that requires pixel compensation is driven to emit light, and the actual optical sensing data of the pixel unit to be compensated is obtained through the sensing component 300 configured in the first sub-pixel 100 for sensing brightness intensity, the first compensation data of the first sub-pixel 100 is determined according to the actual optical sensing data, and the second compensation data of the second sub-pixel 200 that is not configured with the sensing component 300 is determined according to the first compensation data, thereby realizing pixel compensation for all pixels of the pixel unit to be compensated.
  • the detection unit 300 reduces the complexity of hardware design and correspondingly reduces the complexity of the pixel driver, achieving the purpose of fast compensation and saving storage space.
  • the optical sensing data of the plurality of first sub-pixels 100 and other second sub-pixels 200 closest to the second sub-pixel 200 to be compensated currently and then based on a set algorithm, the optical sensing data of the plurality of first sub-pixels 100 and other second sub-pixels 200 are calculated to obtain the second compensation data of the second sub-pixel 200 currently to be compensated.
  • the actual optical sensing data includes the second actual optical sensing data corresponding to the second sub-pixel 200.
  • determining the second compensation data of the second sub-pixel 200 includes:
  • the second sub-pixel 200 that currently needs to be compensated is used as the central pixel to be compensated; the compensation reference data of M compensation reference pixels adjacent to the central pixel to be compensated is obtained, and the M compensation reference pixels include the first sub-pixel 100.
  • the compensation reference data includes first compensation data, wherein M is a natural number; according to the compensation reference data of the M compensation reference pixels, the center compensation data corresponding to the center pixel to be compensated is determined; the center compensation data is used as the second compensation data of the second sub-pixel 200 that currently needs to be compensated.
  • the compensation reference pixels may include the first compensation data and other calculated second compensation data of the second sub-pixel 200, and the currently calculated second compensation data of the second sub-pixel 200 is calculated based on these compensation reference pixels.
  • the algorithm for calculating the second compensation data of the second sub-pixel 200 that currently needs to be compensated may include calculating the median value of a plurality of optical sensing data closest to the second sub-pixel 200 , or calculating the gain-weighted average of a plurality of optical sensing data closest to the second pixel unit.
  • the two algorithms for determining the second compensation data corresponding to the second sub-pixel 200 that currently need to be compensated will be described in detail below.
  • the second compensation data corresponding to the second sub-pixel 200 that currently needs to be compensated is calculated by using an intermediate value calculation method.
  • the center compensation data corresponding to the center pixel to be compensated is determined, including:
  • the M compensation reference data are sorted to obtain the M compensation reference data after the sorting; the first compensation reference data and the last compensation reference data among the M compensation reference data after the sorting are deleted to obtain the sorted (M-2) compensation reference data; the median value of the sorted (M-2) compensation reference data is used as the center compensation data corresponding to the central pixel to be compensated.
  • the second compensation data corresponding to the second sub-pixel 200 that needs to be compensated is calculated by means of gain-weighted average calculation.
  • the center compensation data corresponding to the center pixel to be compensated is determined, including:
  • the sorted (M-2) compensation reference data determine (M-2) brightness gain data, and the (M-2) brightness gain data respectively correspond to the (M-2) compensation reference data one by one; according to the sorted (M-2) compensation reference data and (M-2) brightness gain data, determine the center compensation data corresponding to the central pixel to be compensated.
  • a product value obtained by multiplying the sum of the compensation reference data and the average value of the brightness gain data is used as the center compensation data corresponding to the central pixel to be compensated.
  • the obtained 6 compensation reference data are [350, 360, 365, 370, 380, 390], and then respectively obtain 6 brightness gain data corresponding to the 6 compensation reference data, in this embodiment, set the 6 brightness gain data corresponding to the 6 compensation reference data as [0.1, 0.1, 0.3, 0.1, 0.3, 0.1], after summing up the six compensation reference data in turn, multiplying by the average value of the six brightness gain data, the final product value is 370.5, which is to use 370.5 as the second compensation data corresponding to the second sub-pixel 200 currently to be compensated.
  • a display panel is provided, and the display panel includes a pixel compensation structure such as .

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Abstract

一种像素补偿方法、像素补偿结构及显示面板，包括：获取待补偿像素单元的光学感测数据（402），根据光学感测数据，确定第一子像素（100）的第一补偿数据（403）；根据第一补偿数据，确定第二子像素（200）的第二补偿数据（404），降低了硬件设计复杂度，对应地降低了像素驱动程序的复杂度，达到快速补偿且节省存储空间的目的。

Description

像素补偿方法、像素补偿结构及显示面板 技术领域
本申请涉及显示技术领域，具体涉及一种像素补偿方法、像素补偿结构及显示面板。
 背景技术
电致发光组件作为一种电流型发光器件已越来越多地被应用于显示面板中，由于具备自发光特性，电致发光显示面板不需要背光源，且具有对比度高、厚度薄、视角广、反应速度快、可弯曲、构造及制程简单等优点，因此电致发光显示面板逐渐成为下一代主流显示面板。一般来说，像素电路包括显示单元，薄膜晶体管(Thin Film Transistor，TFT)以及储存电容(Capacitance)，透过固定的扫描波型开关TFT，将与显示数据相应的电压充电至电容器，通过电压的大小控制供显示单元，进而调整显示单元的发光亮度。
一直以来，TFT的工艺稳定性是显示屏的重要课题，也是影响显示画面的主要因素，多个像素之间的驱动TFT的阈值电压(Threshold voltage，Vth)与迁移率(Mobility)存在特性差异，出现亮度的偏差，显示屏的亮度均匀性会下降，甚至产生区域的斑点或是图案。另一方面，有机材料会随着使用时间渐渐老化，并且不可恢复，在长时间点亮的区域会会老化的更快，导致影像画面的残像。目前的外部补偿技术可以补偿TFT的不稳定性，包含截止电压以及迁移率等等,常被应用于中大尺寸的显示。一般来说，电学补偿可以透过感测信号线获取电压或是电流来决定所要补偿的数据，实现补偿TFT的特性；光学补偿可以一次性的补偿面板的均匀性，由于是透过光学方式进行补偿校正，可以有效补偿各种原因造成的问题，例如制程设备产生的Mura等等。
 技术问题
虽然外部补偿可以进行初始的补偿优化，但是随着使用时间的增加，有机发光器件(Organic Light-Emitting Diode，OLED)也会开始老化，依照目前的补偿方式，无法有效的进行OLED的补偿，因此会产生常见的影像残留问题，严重影响使用感受，同时，外部补偿通常都针对每个子像素进行补偿，因此要将所有的补偿参数存下，需要的存储空间较大，对于硬件设计以及驱动程序实现会较复杂，不利于量产使用。
 技术解决方案
本申请提供一种能够对显示器件的像素单元进行光学数据感测与补偿，同时能够推算出没有光学数据感测功能的像素单元的光学特性，实现了快速补偿且节省存储空间的一种像素补偿方法、像素补偿结构及显示面板。
一方面，本申请提供一种像素补偿方法，包括：
驱动需要进行像素补偿的待补偿像素单元发光；
获取所述待补偿像素单元的实际光学感测数据，所述待补偿像素单元包括第一子像素和与所述第一子像素相邻的第二子像素，所述第一子像素配置有用于感测亮度强度的感测部件；
根据所述实际光学感测数据，确定所述第一子像素的第一补偿数据；
根据所述第一补偿数据，确定所述第二子像素的第二补偿数据。
在本申请一种可能的实现方式中，所述待补偿像素单元包括多个具有不同像素颜色的待补偿子像素，所述驱动需要进行像素补偿的待补偿像素单元发光，包括：
按照所述待补偿子像素中像素颜色的排列顺序，在连续的时间内，依次间断地驱动多个待补偿子像素发光按照所述待补偿子像素中像素颜色的排列顺序，依次驱动多个所述待补偿子像素发光。
在本申请一种可能的实现方式中，所述感测部件包括电流乘积器，所述获取所述待补偿像素单元的实际光学感测数据，包括：
获取所述感测部件中所述电流乘积器的电流数据和电压数据，将所述电流乘积器的所述电流数据和所述电压数据作为所述实际光学感测数据。
在本申请一种可能的实现方式中，所述获取待补偿像素单元的实际光学感测数据，包括：
依次获取多个不同像素颜色的所述待补偿子像素分别对应的多个融合光学感测数据，所述融合光学感测数据为在同种颜色的所述待补偿像素同时发光时所感测得到的光学感测数据；
将多个所述融合光学感测数据作为所述待补偿像素单元的实际光学感测数据。
在本申请一种可能的实现方式中，所述依次获取多个不同像素颜色的所述待补偿子像素分别对应的多个融合光学感测数据，包括：
在一个时间段内，点亮所述待补偿像素单元中相同颜色的多个所述待补偿子像素；
同时对周围相同颜色的所述第一子像素和所述第二子像素进行亮度感测，得到与该颜色相对应的所述融合光学感测数据。
在本申请一种可能的实现方式中，所述实际光学感测数据包括与所述第一子像素对应的第一实际光学感测数据，所述根据所述实际光学感测数据，确定所述第一子像素的第一补偿数据，包括：
根据所述第一实际光学感测数据，生成与所述第一子像素关联的灰阶-亮度特性曲线；
根据所述第一子像素关联的灰阶-亮度特性曲线，确定所述第一子像素的所述第一补偿数据。
在本申请一种可能的实现方式中，根据所述第一子像素关联的灰阶-亮度特性曲线，确定所述第一子像素的所述第一补偿数据，包括：
获取与所述第一子像素对应的第一理论光学感测数据；
根据所述第一理论光学感测数据和所述第一实际光学感测数据，确定所述第一子像素的第一补偿数据。
在本申请一种可能的实现方式中，所述实际光学感测数据包括与所述第二子像素对应的第二实际光学感测数据，所述根据所述第一补偿数据，确定所述第二子像素的第二补偿数据，包括：
将当前需要进行补偿的所述第二子像素作为待补偿中心像素；
获取与所述待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，所述M个补偿参考像素包括所述第一子像素，所述补偿参考数据包括所述第一补偿数据，其中，M为自然数；
根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据；
将所述中心补偿数据作为当前需要进行补偿的所述第二子像素的所述第二补偿数据。
在本申请一种可能的实现方式中，所述根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
按照所述补偿参考数据的数值大小，将所述M个所述补偿参考数据进行排序，得到排序后的M个所述补偿参考数据；
删除排序后的M个所述补偿参考数据中的排在第一位的所述补偿参考数据和最后一位的所述补偿参考数据，得到排序后的(M-2)个所述补偿参考数据；
将所述排序后的(M-2)个所述补偿参考数据的中间值作为与所述待补偿中心像素对应的中心补偿数据。
在本申请一种可能的实现方式中，所述根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
根据排序后的(M-2)个所述补偿参考数据，确定(M-2)个亮度增益数据，所述(M-2)个亮度增益数据分别依次与(M-2)个所述补偿参考数据一一对应；
根据排序后的(M-2)个所述补偿参考数据和(M-2)个所述亮度增益数据，确定与所述待补偿中心像素对应的中心补偿数据。
在本申请一种可能的实现方式中，所述根据排序后的(M-2)个所述补偿参考数据和(M-2)个所述亮度增益数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
将所述(M-2)个补偿参考数据进行求和，得到补偿参考数据求和值；
将所述(M-2)个亮度增益数据进行求平均值，得到亮度增益数据平均值；
将所述补偿参考数据求和值和所述亮度增益数据平均值相乘后的乘积值作为所述待补偿中心像素对应的中心补偿数据。
在本申请一种可能的实现方式中，所述获取与所述待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，包括：
以所述待补偿中心像素为中心，获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素，将所述目标像素作为所述补偿参考像素，其中，M=(2m+1)*(2n+1)-1，m和n均为等于或者大于1的自然数。
在本申请一种可能的实现方式中，所述获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素，包括：
获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所述第一子像素的所述第一补偿数据和已经完成计算的所述第二子像素的所述第二补偿数据，将所述第一补偿数据和所述第二补偿数据作为所述补偿参考像素。
另一方面，本申请提供一种像素补偿结构，所述像素补偿结构包括待补偿像素单元，所述待补偿像素单元包括第一子像素和与所述第一子像素相邻且交错排列设置的第二子像素，所述第一子像素配置有用于感测亮度强度的感测部件，每两个相邻的所述感测部件连接同一个感测线，所述像素补偿结构采用的是如所述的像素补偿方法。
在本申请一种可能的实现方式中，所述第一像素单元和所述第二像素单元均为四色像素单元。
在本申请一种可能的实现方式中，所述第一像素单元和所述第二像素单元按照行纵交错排列的方式排列。
在本申请一种可能的实现方式中，所述第一像素单元和所述第二像素单元按照行或纵交错排列的方式排列。
在本申请一种可能的实现方式中，所述第一像素单元和所述第二像素单元按照固定行排列的方式排列。
在本申请一种可能的实现方式中，所述第一像素单元和所述第二像素单元按照固定列排列的方式排列。
另一方面，本申请还提供一种显示面板，所述显示面板包括如所述的像素补偿结构。
 有益效果
本申请通过驱动需要进行像素补偿的待补偿像素单元发光，并通过配置有用于感测亮度强度的感测部件的第一子像素来获取待补偿像素单元的实际光学感测数据，根据实际光学感测数据，确定第一子像素的第一补偿数据，并根据第一补偿数据，确定未配置感测部件的第二子像素的第二补偿数据，实现了待补偿像素单元的所有像素的像素补偿，由于本申请中只有第一子像素配置了感测部件，降低了硬件设计复杂度，对应地降低了像素驱动程序的复杂度，达到快速补偿且节省存储空间的目的。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请现有技术中提供的光敏感测电路的结构示意图；
图2是本申请现有技术中提供的像素补偿结构的结构示意图；
图3是本申请现有技术中提供的像素补偿结构的结构示意图；
图4是本申请现有技术中提供的像素补偿结构的结构示意图；
图5是本申请现有技术中提供的像素补偿结构的结构示意图；
图6是本申请实施例中提供的像素补偿结构的一个实施例结构示意图；
图7是本申请实施例中提供的像素补偿结构的一个实施例结构示意图；
图8是本申请实施例中提供的像素补偿方法的一个实施例流程示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本发明，给出了以下描述。在以下描述中，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本发明。在其它实例中，不会对公知的结构和过程进行详细阐述，以避免不必要的细节使本发明的描述变得晦涩。因此，本发明并非旨在限于所示的实施例，而是与符合本申请所公开的原理和特征的最广范围相一致。
如图1所示，是现有技术中提出的一种光敏感测电路，其中Sense_sw指的是感测开关，REF_TFT指的是TFT的参考电压，INTRST指的是复位开关，Cf指的是高频电容器，cF指的是主板贴片电容，FA指的是隔离开关，LPF指的是低通滤波器，CDS1A~ CDS2A和CDS1B~ CDS2B均指的是控制开关，MUX指的是数据选择器或者电流积分器，ADC指的是数模转换器。应用过程中，当光敏感测部件Sensor感测到光照后，经由光电转换，会产生相应的电流，最后通过电流积分器MUX可以读取该电流，并换算出目前的光照量。
以大尺寸OLED为例，如图2所示，展现了现有技术中提出的一种四色像素单元的排列方式，四色像素单元指的是在传统的三色像素单元的基础上再增加一种子像素，也就是四种颜色的子像素，目前大多数都是在红 (Red)、绿 (Green)、蓝 (Blue)的基础上加上白色(White)，也有加上黄色(Y)的情况，图2中展示的即为RGBW四种像素，其中，j指的是像素单元的列数，DL指的是与像素单元中的像素连接的数据线。
将上述的光敏感测电路与四色像素单元进行结合，得到的像素单元结构可以是如图3所示的结构，其中，像素单元的每个子像素均设置有光敏感测部件，光敏感测部件可以设置在子像素的上方或是周围，多个像素单元处于同一纵向的相同颜色的子像素共用同一个感测线，其中，j指的是像素单元的列数，SL指的是与像素单元中的像素连接的感测线。通过光敏感测部件感测每个子像素的光量，经由具体的算法得到对应子像素的补偿数据，补偿数据可以是该子像素的像素值。
进一步地，基于图3中的像素单元进行制程优化，可以得到如图4所示的像素单元结构，图4所给出的像素单元结构设置方式是同一个像素单元中只有两个子像素设置有光敏感测部件，相邻的像素单元中的具备光敏感测部件的两个子像素不相同，相邻两个像素单元中的光敏感测部件可以采用如图4所示的行纵交错的排列方式或者采用如图5所示的行或纵交错的排列方式，其中，j指的是像素单元的列数，SL指的是与像素单元中的像素连接的感测线。
采用图4或者图5中给出的像素单元结构，尽管可以进行初始的补偿优化，但是随着使用时间的增加，OLED器件也会开始老化，依照上述的硬件设计和补偿方式，结构较为复杂，对应的驱动程度实现也会比较复杂，需要将所有的补偿参数存下，需要的存储空间较大。
为了解决上述问题，本申请实施例提供一种像素补偿方法、像素补偿结构及显示面板，以下分别进行详细说明。
首先本申请提供了一种像素补偿结构，如图6所示，像素补偿方法结构包括待补偿像素单元，待补偿像素单元包括第一子像素100和与第一子像素100相邻且交错排列设置的第二子像素200，第一子像素100配置有用于感测亮度强度的感测部件300，每两个相邻的感测部件300连接同一个感测线。
在本实施例中，像素补偿结构包括待补偿像素单元，待补偿像素单元包括多个第一子像素100个多个第二子像素200，每四个相邻的第一子像素100构成一个第一像素单元，每四个相邻的第二子像素200构成一个第二像素单元，第一像素单元和第二像素单元均为四色像素单元，第一像素单元和第二像素单元的四个子像素均是按照红 (Red)、绿 (Green)、蓝 (Blue)的基础上加上白色(White)依次排列。其中，第一子像素100和第二子像素200的交错排列设置方式可以是如图6所示的行纵交错排列方式，也可以是如图7所示的行或纵交错排列方式，或者固定行排列或者其他的排列组合，在本实施例中对第一子像素和第二子像素的排列方式不做具体限定，其中，j指的是像素单元的列数，SL指的是与像素单元中的像素连接的感测线。
在本实施例中，每两个相邻的第一子像素100共享一个感测线，示例性的，红色子像素上的感测部件300和绿色子像素的感测部件300作为一组共享一个感测线，蓝色子像素上的感测部件300和白色子像素上的感测部件300作为一组共享一个感测线。其中，感测线共享的比例越高，则需要的感测线越少，硬件设计则越简单，设计成本越低，因此在本实施例中，对采用的感测线的数量以及多个子像素共享感测线的方式不做具体的限定。
为了更好实施本申请实施例中像素补偿结构，在像素补偿结构基础之上，本申请实施例中还提供一种像素补偿方法，如图8所示，为本申请实施例中像素补偿方法的一个实施例流程示意图，该像素补偿方法包括以下步骤401~404：
401、驱动需要进行像素补偿的待补偿像素单元发光。
通过外部的驱动电路向待补偿像素单元输入合适的驱动电压，驱动需要进行像素补偿的待补偿像素单元发光。
在本实施例中，采用了分时分组驱动方式，具体的，待补偿像素单元包括多个具有不同像素颜色的待补偿子像素，驱动需要进行像素补偿的待补偿像素单元发光，包括：按照待补偿子像素中像素颜色的排列顺序，在连续的时间内，依次间断地驱动多个待补偿子像素发光。
采用上述驱动方式时，首次驱动时，先驱动待补偿像素单元其中一个像素颜色的所有待补偿子像素发光，一段时间后，再驱动待补偿像素单元其中一个像素颜色的所有待补偿子像素发光，重复该步骤，直至待补偿像素单元中的所有待补偿子像素全部完成发光。
402、获取待补偿像素单元的实际光学感测数据，待补偿像素单元包括第一子像素100和与第一子像素100相邻的第二子像素200，第一子像素100配置有用于感测亮度强度的感测部件300。
待补偿像素单元在输入驱动电压而发光的过程中，通过第一子像素100配置的感测部件300对待补偿像素单元的发光亮度进行检测，基于图1中给出的电路，感测部件300在检测过程的电流电压变化，最终在电流乘积器中形成对应的电流数据，该电流数据即为与待补偿像素单元的实际光学感测数据，实际光学感测数据也可以是其他形式的数据，例如电压数据等，在本实施例中对此不做更加具体的限定。
待补偿像素单元显示混色时，感测部件300所感测的实际光学感测数据出现偏差，为了预先收集待补偿像素单元中所有像素的实际光学感测数据，且为了保证收集的实际光学感测数据更加准确，在设计分组驱动时，可以分时获取不同像素颜色的待补偿子像素的光学感测数据。因此，驱动需要进行像素补偿的待补偿像素单元发光，包括：
依次获取多个不同像素颜色的待补偿子像素分别对应的多个融合光学感测数据，融合光学感测数据为在同种颜色的待补偿像素同时发光时所感测得到的光学感测数据，将多个融合光学感测数据作为待补偿像素单元的实际光学感测数据。
由于第一子像素100和第二子像素200是交错排列且仅有第一子像素100配置具有感测部件300，因此，在一个时间段内点亮待补偿子像单元中相同颜色的多个补偿子像素时，感测部件300可以同时对周围相同颜色的第一子像素100和第二子像素200进行亮度感测，从而得到与该颜色相对应的融合光学感测数据，在上一颜色识别完毕完后，继续通过感测部件300对其周围的第一子像素100和第二子像素200进行亮度感测，重复上述步骤，直至获取完所有相同颜色的子像素的融合光学感测数据后，将多个融合光学感测数据进行整合后作为待补偿像素单元的实际光学感测数据，采用该种光学感测方式，有效提高获取待补偿像素单元的光学感测数据的效率。
403、根据实际光学感测数据，确定第一子像素100的第一补偿数据。
实际光学感测数据包括与第一子像素100对应的第一实际光学感测数据，采用之前的步骤采集完所有的实际光学感测数据后，可以基于第一实际光学感测数据生成与第一子像素100关联的灰阶-亮度特性曲线，根据第一子像素100关联的灰阶-亮度特性曲线，确定第一子像素100的第一补偿数据。
具体的，确定第一子像素100的第一补偿数据，包括：获取与第一子像素100对应的第一理论光学感测数据，根据第一理论光学感测数据和第一实际光学感测数据，确定第一子像素100的第一补偿数据。
在本实施例中，设定用于驱动第一子像素100显示指定的灰阶值的驱动信号为驱动信号V1，当驱动信号V1施加至第一子像素100后，通过感测部件300感测到的光学感测数据即为该第一子像素对应的第一实际光学感测数据，根据通过灰阶-亮度特性曲线，推断出的驱动信号V1施加至第一子像素100后应当具备的光学感测数据即为该第一子像素对应的第一理论光学感测数据，因此，将第一实际光学感测数据和第一理论光学感测数据进行对比，即可以得到第一子像素的亮度补偿值，根据亮度补偿值即可确定第一补偿数据。
404、根据第一补偿数据，确定第二子像素200的第二补偿数据。
由于第二像素单元中的每个第二子像素均不具有感测器件，难以直接检测到第个二子像素在显示指定灰阶值时具备的准确的光照强度，且由于第一像素单元和第二像素单元相邻之间的组件特性差异较小，因此在本实施例中，可以通过与第二像素单元距离最近的多个第一像素单元的光学感测数据来确定出与该第二像素单元对应的第二补偿数据。
本申请通过驱动需要进行像素补偿的待补偿像素单元发光，并通过第一子像素100配置的用于感测亮度强度的感测部件300获取待补偿像素单元的实际光学感测数据，根据实际光学感测数据，确定第一子像素100的第一补偿数据，并根据第一补偿数据，确定未配置感测部件300的第二子像素200的第二补偿数据，实现了待补偿像素单元的所有像素的像素补偿，由于本申请中只有第一子像素100配置了感测部件300，降低了硬件设计复杂度，对应地降低了像素驱动程序的复杂度，达到快速补偿且节省存储空间的目的。
在本申请中，可以是在获取距离当前待补偿的第二子像素200最近的多个第一子像素100和其他第二子像素200的光学感测数据后，再基于设定的算法，将多个第一子像素100和其他第二子像素200的光学感测数据进行计算得到当前需要进行补偿的第二子像素200的第二补偿数据。
在本申请另一个实施例中，实际光学感测数据包括与第二子像素200对应的第二实际光学感测数据，在计算第二子像素200对应的第二补偿数据之前，首先要确定出与距离当前需要进行补偿的第二子像素200最近的多个第一子像素100，因此，根据第一补偿数据，确定第二子像素200的第二补偿数据，包括：
将当前需要进行补偿的第二子像素200作为待补偿中心像素；获取与待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，M个补偿参考像素包括第一子像素100，补偿参考数据包括第一补偿数据，其中，M为自然数；根据M个补偿参考像素的补偿参考数据，确定与待补偿中心像素对应的中心补偿数据；将中心补偿数据作为当前需要进行补偿的第二子像素200的第二补偿数据。
在本实施例中，获取与待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，具体包括：以待补偿中心像素为中心，获取待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素，将目标像素作为补偿参考像素，其中，M=(2m+1)*(2n+1)-1，m和n均为等于或者大于1的自然数。
即将当前需要进行补偿的第二子像素200周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素作为补偿参考像素，其中，补偿参考像素可以包括第一补偿数据和其他的第二子像素200的已经计算完成的第二补偿数据，基于这些补偿参考像素来计算出当前计算的第二子像素200的第二补偿数据。
示例性的，当m=2，n=2时，M=24，表示将当前需要进行补偿的第二子像素200作为中心，获取该第二子像素200周围规格为(5，5)的像素阵列中的所有目标像素作为补偿参考像素，即将该第二子像素200周围24个目标像素作为补偿参考像素，再基于24个补偿参考像素，采用设定的算法计算得到当前需要进行补偿的第二子像素200的第二补偿数据。
计算当前需要进行补偿的第二子像素200的第二补偿数据的算法可以包括通过对多个距离第二子像素200最近的光学感测数据进行中间值计算得到，或者通过对多个距离第二像素单元最近的光学感测数据进行增益加权求平均值计算得到，下面对这两种用于确定当前需要进行补偿的第二子像素200对应的第二补偿数据的算法进行具体阐述。
在本申请另一个实施例中，采用中间值计算的方式计算得到当前需要进行补偿的第二子像素200对应的第二补偿数据，具体的，根据M个补偿参考像素的补偿参考数据，确定与待补偿中心像素对应的中心补偿数据，包括：
按照补偿参考数据的数值大小，将M个补偿参考数据进行排序，得到排序后的M个补偿参考数据；删除排序后的M个补偿参考数据中的排在第一位的补偿参考数据和最后一位的补偿参考数据，得到排序后的(M-2)个补偿参考数据；将排序后的(M-2)个补偿参考数据的中间值作为与待补偿中心像素对应的中心补偿数据。
示例性的，当m=1，n=1时，M=8，即选择待补偿中心像素周围的8个补偿参考数据进行计算，将该8个补偿参考数据按照数值大小进行排序，设定该8个补偿参考数据排序后的数据具体为[100, 350, 360, 365, 370, 380, 390, 800]，删除排序后的8个补偿参考数据中的最小值和最大值后，得到的剩余的排序后的6个补偿参考数据为[350, 360, 365, 370, 380, 390]，计算这6个补偿参考数据的中间值(365+370)/2 = 367.5，将中间值作为与待补偿中心像素对应的中心补偿数据，即将367.5作为当前待补偿的第二子像素200对应的第二补偿数据。
在本申请另一个实施例中，采用增益加权求平均值计算的方式计算得到当前需要进行补偿的第二子像素200对应的第二补偿数据，具体的，根据M个补偿参考像素的补偿参考数据，确定与待补偿中心像素对应的中心补偿数据，包括：
根据排序后的(M-2)个补偿参考数据，确定(M-2)个亮度增益数据，(M-2)个亮度增益数据分别依次与(M-2)个补偿参考数据一一对应；根据排序后的(M-2)个补偿参考数据和(M-2)个亮度增益数据，确定与待补偿中心像素对应的中心补偿数据。
在本实施例中，根据排序后的(M-2)个补偿参考数据和(M-2)个亮度增益数据，确定与待补偿中心像素对应的中心补偿数据，具体包括：
将所述(M-2)个补偿参考数据进行求和，得到补偿参考数据求和值；
将所述(M-2)个亮度增益数据进行求平均值，得到亮度增益数据平均值；
将所述补偿参考数据求和值和所述亮度增益数据平均值相乘后的乘积值作为所述待补偿中心像素对应的中心补偿数据。
示例性的，继续以上面给出的示例为例进行说明，当m=1，n=1时，M=8，在对排序后的8个补偿参考数据删除最小值和最大值后，得到的6个补偿参考数据为[350, 360, 365, 370, 380, 390]，再分别获取6个补偿参考数据对应的6个亮度增益数据，在本实施例中，设定于该6个补偿参考数据对应的6个亮度增益数据为[0.1, 0.1, 0.3, 0.1, 0.3, 0.1]，依次将6个补偿参考数据求和后，乘上6个亮度增益数据的平均值，最后得到的乘积值为370.5，即将370.5作为当前待补偿的第二子像素200对应的第二补偿数据。
在本申请另一个实施例中，提供一种显示面板，显示面板包括如的像素补偿结构。
以上对本申请实施例所提供的一种像素补偿方法、像素补偿结构及显示面板进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (20)

  1. 一种像素补偿方法，其中，包括：
    驱动需要进行像素补偿的待补偿像素单元发光；
    获取所述待补偿像素单元的实际光学感测数据，所述待补偿像素单元包括第一子像素和与所述第一子像素相邻的第二子像素，所述第一子像素配置有用于感测亮度强度的感测部件；
    根据所述实际光学感测数据，确定所述第一子像素的第一补偿数据；
    根据所述第一补偿数据，确定所述第二子像素的第二补偿数据。
  2. 如权利要求1所述的像素补偿方法，其中，所述待补偿像素单元包括多个具有不同像素颜色的待补偿子像素，所述驱动需要进行像素补偿的待补偿像素单元发光，包括：
    按照所述待补偿子像素中像素颜色的排列顺序，在连续的时间内，依次间断地驱动多个待补偿子像素发光。
  3. 如权利要求1所述的像素补偿方法，其中，所述感测部件包括电流乘积器，所述获取所述待补偿像素单元的实际光学感测数据，包括：
    获取所述感测部件中所述电流乘积器的电流数据和电压数据，将所述电流乘积器的所述电流数据和所述电压数据作为所述实际光学感测数据。
  4. 如权利要求3所述的像素补偿方法，其中，所述获取待补偿像素单元的实际光学感测数据，包括：
    依次获取多个不同像素颜色的所述待补偿子像素分别对应的多个融合光学感测数据；
    将多个所述融合光学感测数据作为所述待补偿像素单元的实际光学感测数据。
  5. 如权利要求4所述的像素补偿方法，其中，所述依次获取多个不同像素颜色的所述待补偿子像素分别对应的多个融合光学感测数据，包括：
    在一个时间段内，点亮所述待补偿像素单元中相同颜色的多个所述待补偿子像素；
    同时对周围相同颜色的所述第一子像素和所述第二子像素进行亮度感测，得到与该颜色相对应的所述融合光学感测数据。
  6. 如权利要求1所述的像素补偿方法，其中，所述实际光学感测数据包括与所述第一子像素对应的第一实际光学感测数据，所述根据所述实际光学感测数据，确定所述第一子像素的第一补偿数据，包括：
    根据所述第一实际光学感测数据，生成与所述第一子像素关联的灰阶-亮度特性曲线；
    根据所述第一子像素关联的灰阶-亮度特性曲线，确定所述第一子像素的所述第一补偿数据。
  7. 如权利要求6所述的像素补偿方法，其中，根据所述第一子像素关联的灰阶-亮度特性曲线，确定所述第一子像素的所述第一补偿数据，包括：
    获取与所述第一子像素对应的第一理论光学感测数据；
    根据所述第一理论光学感测数据和所述第一实际光学感测数据，确定所述第一子像素的第一补偿数据。
  8. 如权利要求7所述的像素补偿方法，其中，所述实际光学感测数据包括与所述第二子像素对应的第二实际光学感测数据，所述根据所述第一补偿数据，确定所述第二子像素的第二补偿数据，包括：
    将当前需要进行补偿的所述第二子像素作为待补偿中心像素；
    获取与所述待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，所述M个补偿参考像素包括所述第一子像素，所述补偿参考数据包括所述第一补偿数据，其中，M为自然数；
    根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据；
    将所述中心补偿数据作为当前需要进行补偿的所述第二子像素的所述第二补偿数据。
  9. 如权利要求8所述的像素补偿方法，其中，所述根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
    按照所述补偿参考数据的数值大小，将所述M个所述补偿参考数据进行排序，得到排序后的M个所述补偿参考数据；
    删除排序后的M个所述补偿参考数据中的排在第一位的所述补偿参考数据和最后一位的所述补偿参考数据，得到排序后的(M-2)个所述补偿参考数据；
    将所述排序后的(M-2)个所述补偿参考数据的中间值作为与所述待补偿中心像素对应的中心补偿数据。
  10. 如权利要求9所述的像素补偿方法，其中，所述根据所述M个补偿参考像素的所述补偿参考数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
    根据排序后的(M-2)个所述补偿参考数据，确定(M-2)个亮度增益数据，所述(M-2)个亮度增益数据分别依次与(M-2)个所述补偿参考数据一一对应；
    根据排序后的(M-2)个所述补偿参考数据和(M-2)个所述亮度增益数据，确定与所述待补偿中心像素对应的中心补偿数据。
  11. 如权利要求10所述的像素补偿方法，其中，所述根据排序后的(M-2)个所述补偿参考数据和(M-2)个所述亮度增益数据，确定与所述待补偿中心像素对应的中心补偿数据，包括：
    将所述(M-2)个补偿参考数据进行求和，得到补偿参考数据求和值；
    将所述(M-2)个亮度增益数据进行求平均值，得到亮度增益数据平均值；
    将所述补偿参考数据求和值和所述亮度增益数据平均值相乘后的乘积值作为所述待补偿中心像素对应的中心补偿数据。
  12. 如权利要求8所述的像素补偿方法，其中，所述获取与所述待补偿中心像素相邻的M个补偿参考像素的补偿参考数据，包括：
    以所述待补偿中心像素为中心，获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素，将所述目标像素作为所述补偿参考像素，其中，M=(2m+1)*(2n+1)-1，m和n均为等于或者大于1的自然数。
  13. 如权利要求12所述的像素补偿方法，其中，所述获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所有目标像素，包括：
    获取所述待补偿中心像素周围规格为(2m+1, 2n+1)的像素阵列内的所述第一子像素的所述第一补偿数据和已经完成计算的所述第二子像素的所述第二补偿数据，将所述第一补偿数据和所述第二补偿数据作为所述补偿参考像素。
  14. 一种像素补偿结构，其中，所述像素补偿结构包括待补偿像素单元，所述待补偿像素单元包括第一子像素和与所述第一子像素相邻且交错排列设置的第二子像素，所述第一子像素配置有用于感测亮度强度的感测部件，每两个相邻的所述感测部件连接同一个感测线，所述像素补偿结构采用的是如权利要求1所述的像素补偿方法。
  15. 如权利要求14所述的像素补偿结构，其中，所述第一像素单元和所述第二像素单元均为四色像素单元。
  16. 如权利要求14所述的像素补偿结构，其中，所述第一像素单元和所述第二像素单元按照行纵交错排列的方式排列。
  17. 如权利要求14所述的像素补偿结构，其中，所述第一像素单元和所述第二像素单元按照行或纵交错排列的方式排列。
  18. 如权利要求14所述的像素补偿结构，其中，所述第一像素单元和所述第二像素单元按照固定行排列的方式排列。
  19. 如权利要求14所述的像素补偿结构，其中，所述第一像素单元和所述第二像素单元按照固定列排列的方式排列。
  20. 一种显示面板，其中，所述显示面板包括如权利要求14所述的像素补偿结构。
PCT/CN2022/077994 2022-01-20 2022-02-25 像素补偿方法、像素补偿结构及显示面板 Ceased WO2023137828A1 (zh)

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