WO2019000931A1 - 显示控制方法、装置及显示装置 - Google Patents

显示控制方法、装置及显示装置 Download PDF

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Publication number
WO2019000931A1
WO2019000931A1 PCT/CN2018/074162 CN2018074162W WO2019000931A1 WO 2019000931 A1 WO2019000931 A1 WO 2019000931A1 CN 2018074162 W CN2018074162 W CN 2018074162W WO 2019000931 A1 WO2019000931 A1 WO 2019000931A1
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pixel
sub
light
white
color sub
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PCT/CN2018/074162
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English (en)
French (fr)
Inventor
宋丹娜
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京东方科技集团股份有限公司
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Priority to US16/062,827 priority Critical patent/US10937837B2/en
Publication of WO2019000931A1 publication Critical patent/WO2019000931A1/zh

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    • 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]
    • 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
    • G09G3/2003—Display of colours
    • 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
    • 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
    • H10K59/351—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
    • 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
    • H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • 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
    • 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
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • Embodiments of the present disclosure relate to a display control method, apparatus, and display apparatus.
  • AMOLED display device is a next-generation display device, which attracts great attention due to its fast response speed, high luminous efficiency, high brightness, and wide viewing angle.
  • the display device displays an image by controlling a current flowing in the organic light emitting diode through a driving transistor.
  • a white OLED (Organic Light Emitting Diode) display device can be coupled with a color filter of three colors of RGB through a white OLED (WOLED) device.
  • the white OLED display device has a plurality of pixels, each of which includes a red sub-pixel for generating red light, a green sub-pixel for generating green light, a blue sub-pixel for generating blue light, and white for generating white light.
  • the red sub-pixel further includes an R color filter (RCF) for transmitting red light in white light incident from the white OLED device;
  • the green sub-pixel further includes a G color filter (GCF) for transmitting the white OLED device Green light in incident white light;
  • blue sub-pixel further includes B color filter (BCF) for transmitting blue light in white light incident from white OLED device;
  • white sub-pixel does not have color filter (NO CF), transmission All white light incident from a white OLED device.
  • the white OLED device has a structure in which an R (red) light emitting layer, a G (green) light emitting layer, a B (blue) light emitting layer, and the like are laminated between a cathode and an anode, or a Y (yellow) light emitting layer and a B (blue) light emitting layer. A layer or the like is laminated between the cathode and the anode.
  • the inventors have found that in the current white OLED display device having basic color sub-pixels and mixed color sub-pixels, white is displayed by a combination of light-emitting layers of a plurality of colors, and when the white OLED device is aged, the light of the white sub-pixels The chromaticity coordinates are offset, causing the color cast of the display color.
  • Embodiments of the present disclosure provide a display control method for a display device having a basic color sub-pixel and a mixed color sub-pixel, including:
  • the basic color sub-pixel includes sub-pixels of at least two colors, the mixed-color sub-pixel including sub-pixels of one color, through the basic color Light mixing of sub-pixels to obtain light of the mixed color sub-pixels;
  • the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the mixed-color sub-pixel is a white sub-pixel; or the basic color sub-pixel includes a yellow sub-pixel and a blue sub-pixel, The mixed color sub-pixel is a white sub-pixel.
  • the display device is an OLED display device
  • the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel each include a white OLED device
  • the red sub-pixel, the The green sub-pixel and the blue sub-pixel respectively obtain colors of respective sub-pixels through a color filter
  • the step of acquiring actual chromaticity coordinates of light of the current mixed-color sub-pixel includes:
  • the step of acquiring the actual chromaticity coordinates of the light of the current mixed color sub-pixel includes:
  • the actual chromaticity coordinates of the light of the white sub-pixel at the current lifetime index of the white OLED device corresponding to the current white sub-pixel are measured.
  • the method further includes:
  • calculating the light of the basic color sub-pixel in the light of the mixed color sub-pixel before the steps of the proportion also includes:
  • the actual chromaticity coordinates of the light of the basic color sub-pixels of the white OLED device corresponding to the current basic color sub-pixel are measured under the current life index.
  • the initial color sub-pixel is determined according to the initial luminance data of the basic color sub-pixel, and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel.
  • the steps of the target brightness data of the basic color sub-pixels include:
  • the smallest brightness data is used as the target brightness data of the white sub-pixel
  • the sub-pixel corresponding to the minimum brightness data is used as the target sub-pixel a pixel, wherein the sub-pixels other than the target sub-pixel of the basic color sub-pixel are other sub-pixels;
  • a product of a ratio of target luminance data of the white sub-pixel to a ratio of light of the other sub-pixels of light of the white sub-pixel; and the other sub-pixels The initial luminance data is subtracted from the product, and the difference is the target luminance data of the other sub-pixels.
  • the embodiment of the present disclosure further provides a display control apparatus, including:
  • a chromaticity coordinate acquiring module configured to acquire actual chromaticity coordinates of light of the current mixed color sub-pixel
  • a ratio calculation module configured to calculate light of the basic color sub-pixel in light of the mixed color sub-pixel according to actual chromaticity coordinates of light of the mixed color sub-pixel and chromaticity coordinates of light of a basic color sub-pixel The proportion of each;
  • a target luminance data determining module configured to determine the mixed dice according to an initial luminance data of the basic color sub-pixel and a proportion of light of the basic color sub-pixel in the light of the mixed color sub-pixel The target brightness data of the pixel and the basic color sub-pixel.
  • the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the mixed-color sub-pixel is a white sub-pixel; or the basic color sub-pixel includes a yellow sub-pixel and a blue sub-pixel, The mixed color sub-pixel is a white sub-pixel.
  • the chromaticity coordinate acquisition module includes:
  • a first measurement sub-module of chromaticity coordinates for pre-measuring actual chromaticity coordinates of light emitted by the white OLED device under different life indices, and stored in the storage unit;
  • a chromaticity coordinate finding sub-module configured to search, in the storage unit, an actual chromaticity coordinate of light emitted by the white OLED device corresponding to the life index according to a life index of a white OLED device corresponding to the current white sub-pixel, as a current The actual chromaticity coordinates of the light of the white subpixel.
  • the chromaticity coordinate acquisition module includes:
  • the second measurement sub-module of the chromaticity coordinate is used for measuring the actual chromaticity coordinate of the light of the white sub-pixel under the current life index of the white OLED device corresponding to the current white sub-pixel.
  • the display control device further includes:
  • a ratio determining module configured to determine a compensation ratio of the white sub-pixel and the basic color sub-pixel according to a life index of the white OLED device corresponding to the white sub-pixel and the basic color sub-pixel;
  • a compensation module configured to compensate the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel according to the target brightness data and the compensation ratio.
  • the display control device further includes:
  • the chromaticity coordinate measuring module is configured to measure the actual chromaticity coordinates of the light of the basic color sub-pixel under the current life index of the white OLED device corresponding to the current basic color sub-pixel.
  • the target brightness data determining module includes:
  • a luminance data calculation submodule configured to calculate first luminance data according to a ratio of initial luminance data of the red subpixel divided by light of the red subpixel in the light of the white subpixel, respectively; according to the green subpixel
  • the initial luminance data is divided by the proportion of the light of the green sub-pixel in the light of the white sub-pixel, and the second luminance data is calculated; the initial luminance data of the blue sub-pixel is divided by the white sub-pixel.
  • a target brightness data determining submodule configured to use a minimum brightness data as the target brightness data of the white sub-pixel in the first brightness data, the second brightness data, and the third brightness data, the minimum a sub-pixel corresponding to the luminance data is a target sub-pixel, and the sub-pixels other than the target sub-pixel of the basic color sub-pixel are other sub-pixels;
  • a target luminance data calculation submodule configured to calculate, for each of the other subpixels, a ratio of target luminance data of the white subpixel to light of the other subpixels of light of the white subpixel a product, and subtracting the product from the initial luminance data of the other sub-pixels, the difference being the target luminance data of the other sub-pixels.
  • Embodiments of the present disclosure also provide a display device including the above display control device.
  • FIG. 1 is a schematic structural view of a conventional white OLED display device
  • FIG. 2 is a flow chart showing a display control method according to Embodiment 1 of the present disclosure
  • FIG. 3 is a flow chart showing a display control method according to Embodiment 2 of the present disclosure.
  • FIG. 4 is a block diagram showing the structure of a display control device according to Embodiment 3 of the present disclosure.
  • FIG. 5 is a block diagram showing the structure of a display control device according to Embodiment 4 of the present disclosure.
  • the embodiments of the present disclosure provide a display control method, device, and display device, which can solve the problem of uneven display color caused by the chromaticity coordinate shift of a white sub-pixel when the existing white OLED device is aged.
  • Embodiments of the present disclosure are applied to a display device having a basic color sub-pixel including at least two color sub-pixels, and a mixed color sub-pixel including a sub-pixel of one color .
  • the light of the mixed color sub-pixels can be mixed by the light of the basic color sub-pixels.
  • FIG. 2 a flowchart of a display control method according to Embodiment 1 of the present disclosure is shown, which may specifically include the following steps:
  • Step 201 Acquire actual chromaticity coordinates of light of the current mixed color sub-pixel.
  • the mixed color sub-pixel is a white sub-pixel
  • the white OLED device when aged, the chromaticity coordinates of the light of the white sub-pixel are shifted, so that the light of the white sub-pixel contains a certain proportion of the basic color sub-pixel. The light of the pixel.
  • the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel
  • the mixed-color sub-pixel is a white sub-pixel
  • the basic color sub-pixel includes a yellow sub-pixel and a blue sub-pixel
  • the mixed color sub-pixel is a white sub-pixel.
  • the white light can be obtained by mixing red light emitted by the red sub-pixel, green light emitted by the green sub-pixel, and blue light emitted by the blue sub-pixel; or white light can be obtained by mixing the yellow light emitted by the yellow sub-pixel and the blue light emitted by the blue sub-pixel.
  • the white OLED device corresponding to the white sub-pixel does not age, the light emitted by the white sub-pixel is also white light.
  • the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the mixed-color sub-pixel is a white sub-pixel as an example for subsequent description.
  • the white OLED device corresponding to the white sub-pixel and the basic color sub-pixel emits light, and the white OLED device emits white light;
  • the red sub-pixel includes an R filter, which can emit the white OLED device.
  • the white light is converted into red light;
  • the green sub-pixel includes a G color filter that converts white light emitted by the white OLED device into green light; and
  • the blue sub-pixel includes a B color filter that converts white light emitted by the white OLED device into blue light.
  • the display device is an OLED display device
  • the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel each include a white OLED device
  • the red sub-pixel and the The green sub-pixel and the blue sub-pixel respectively obtain the color of each sub-pixel through a color filter.
  • the white OLED devices of each sub-pixel will undergo a certain degree of aging. Since the red sub-pixel, the green sub-pixel, and the blue sub-pixel respectively have corresponding R color filters, G color filters, and B color filters, and there are no color filters in the white sub-pixels, the white sub-pixels are opposite to the red color.
  • the sub-pixel, the green sub-pixel, and the blue sub-pixel, the chromaticity coordinates of the white sub-pixel are shifted to a greater extent. Therefore, in the embodiment of the present disclosure, only the color cast of the display color caused by the chromaticity coordinate shift of the light of the white sub-pixel is considered.
  • the chromaticity coordinates of the light of the white sub-pixel can generally be obtained in at least two ways below.
  • the first way pre-measuring the actual chromaticity coordinates of the light emitted by the white OLED device under different life indexes, and storing them in the storage unit; according to the life index of the white OLED device corresponding to the current white sub-pixel, in the storage The actual chromaticity coordinates of the light emitted by the white OLED device corresponding to the life index are searched for as the actual chromaticity coordinates of the light of the current white sub-pixel.
  • the driving transistor and the white OLED device are aged under the same conditions during use, and there is a mapping relationship between the threshold voltage of the driving transistor and the lifetime index of the white OLED device.
  • determine the life index of the corresponding white OLED device at different threshold voltages of the driving transistor the white OLED device actually measures the actual chromaticity coordinates of the light emitted by the white OLED device under different lifetime indices, and It is stored in the storage unit; determining a life index of the white OLED device according to a threshold voltage of the driving transistor corresponding to the current white sub-pixel, and searching for an actual chromaticity coordinate of the light emitted by the white OLED device corresponding to the life index in the storage unit , the actual chromaticity coordinate of the light as the current white sub-pixel.
  • the second way measuring the actual chromaticity coordinates of the light of the white sub-pixel under the current life index of the white OLED device corresponding to the current white sub-pixel.
  • the actual chromaticity coordinates of the light emitted by the white OLED device are actually measured as the actual chromaticity coordinates of the light of the white sub-pixels under the lifetime index of the white OLED device corresponding to the current white sub-pixel.
  • the first way is to pre-measure the actual chromaticity coordinates of the light emitted by the white OLED device under different life indexes, and store them in the storage unit, and look up the current white OLED device from the storage unit when the screen display is to be performed.
  • the actual chromaticity coordinates of the light; the second way is to directly measure the actual chromaticity coordinates of the light emitted by the current white OLED device when the screen is to be displayed.
  • Step 202 Calculate, according to the actual chromaticity coordinates of the light of the mixed color sub-pixel and the chromaticity coordinates of the light of the basic color sub-pixel, the light of the basic color sub-pixel in the light of the mixed color sub-pixel proportion.
  • the light of the corresponding basic color sub-pixel in the light of the white sub-pixel is calculated. proportion. For example, when the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the ratio of the light of the corresponding red sub-pixel, the light of the green sub-pixel, and the light of the blue sub-pixel among the light of the white sub-pixel is calculated. .
  • the proportion of the light of the white sub-pixel corresponding to the light of the basic color sub-pixel refers to the percentage of the light of each basic color sub-pixel in the light of the white sub-pixel, which represents a ratio. coefficient. For example, the proportion of the light corresponding to the red sub-pixel in the light of the white sub-pixel is 20%, the proportion of the light corresponding to the green sub-pixel in the light of the white sub-pixel is 40%, and the blue corresponding to the light of the white sub-pixel The proportion of light in the sub-pixels is 40%.
  • the actual chromaticity coordinates of the light of the current base color sub-pixel can be measured separately. Since the embodiment of the present disclosure considers only the chromaticity coordinate shift of the light of the white sub-pixel, the chromaticity coordinate of the light of the basic color sub-pixel can also be directly determined according to the chromaticity coordinate map. The actual chromaticity coordinates of the light of the current basic color sub-pixel are obtained by measurement, which is more accurate.
  • Step 203 Determine, according to the initial luminance data of the basic color sub-pixel, and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel, the mixed color sub-pixel and the basic The target brightness data of the color sub-pixel.
  • step 203 Determine, according to the initial luminance data of the basic color sub-pixel, and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel, the mixed color sub-pixel and the basic The target brightness data of the color sub-pixel.
  • the white sub-pixel and the basic color sub-pixel are determined according to the initial luminance data of the basic color sub-pixel in the image to be displayed and the proportion of the light of the corresponding basic color sub-pixel in the light of the white sub-pixel.
  • Target brightness data the initial luminance data of the basic color sub-pixel in the image to be displayed.
  • the initial brightness data of the basic color sub-pixels in the image to be displayed is re-adjusted to the target brightness data of the white sub-pixel and the basic color sub-pixel, so that the final display color of the image to be displayed is not color cast.
  • the target luminance data is the final display luminance data of the image to be displayed, and the initial luminance data is luminance data input to the image to be displayed.
  • display data of an image to be displayed may be acquired from a signal source, the display data including grayscale data of a basic color sub-pixel.
  • Gray-scale data of basic color sub-pixels are usually converted into initial luminance data by using a gamma curve, which is used to indicate the display brightness of the corresponding color sub-pixels under different gray levels.
  • the gamma curve is most commonly used. 2.2, that is, the initial luminance data of the basic color sub-pixel is the power of 2.2 of the gray scale data.
  • the display data may also be a driving voltage of the basic color sub-pixel, and the corresponding gray scale data is set by controlling the magnitude of the driving voltage.
  • the actual chromaticity coordinates of the light of the current mixed color sub-pixel are acquired; the actual chromaticity coordinates of the light of the mixed color sub-pixel and the chromaticity coordinates of the light of the basic color sub-pixel are calculated. a ratio of light of the basic color sub-pixels in the light of the mixed color sub-pixels; according to initial luminance data of the basic color sub-pixels, and the basic color sub-pixels of the light of the mixed color sub-pixels The target brightness data of the mixed color sub-pixel and the basic color sub-pixel are determined by the proportion of the light.
  • Mixed dice pixels are typically white sub-pixels.
  • the chromaticity coordinates of the light of the white sub-pixels shift. Determining target luminance data of the white sub-pixel and the basic color sub-pixel according to the ratio of the light containing the basic color sub-pixel in the light of the white sub-pixel, and the initial luminance data of the basic color sub-pixel, so that the final display color of the image is not biased .
  • FIG. 3 a flowchart of a display control method according to Embodiment 2 of the present disclosure is shown, which may specifically include the following steps:
  • Step 301 Acquire actual chromaticity coordinates of light of the current mixed color sub-pixel.
  • This step is similar to the principle of step 201 in the first embodiment, and details are not described herein again.
  • Step 302 Measure the actual chromaticity coordinates of the light of the basic color sub-pixel under the current life index of the white OLED device corresponding to the current basic color sub-pixel.
  • the basic color sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Measuring the actual chromaticity coordinates of the light of the basic color sub-pixel under the current life index of the white OLED device corresponding to the current basic color sub-pixel, including: measuring the actual chromaticity coordinate of the light of the red sub-pixel, and measuring the light of the green sub-pixel The actual chromaticity coordinates of the actual chromaticity coordinates of the light of the blue sub-pixel.
  • Step 303 Calculate, according to the actual chromaticity coordinates of the light of the mixed color sub-pixel and the chromaticity coordinates of the light of the basic color sub-pixel, the light of the basic color sub-pixel in the light of the mixed color sub-pixel proportion.
  • step 202 is similar to the principle of step 202 in the first embodiment, and details are not described herein again.
  • Step 304 Determine, according to the initial luminance data of the basic color sub-pixel, and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel, the mixed color sub-pixel and the basic The target brightness data of the color sub-pixel.
  • the target luminance data of the white sub-pixel and the basic color sub-pixel are re-determined according to the initial luminance data of the basic color sub-pixel and the proportion of the light of the corresponding basic color sub-pixel among the light of the white sub-pixel. So that the final display color of the image to be displayed is not color cast.
  • the first luminance data is calculated according to the ratio of the initial luminance data of the red sub-pixel divided by the light of the red sub-pixel in the light of the white sub-pixel; and the initial luminance data of the green sub-pixel is divided by Calculating the second brightness data according to the proportion of the light of the green sub-pixel in the light of the white sub-pixel; dividing the initial brightness data of the blue sub-pixel by the blue of the light of the white sub-pixel The ratio of the light of the sub-pixels is calculated, and the third brightness data is calculated; among the first brightness data, the second brightness data, and the third brightness data, the minimum brightness data is used as the target of the white sub-pixel Luminance data, the sub-pixel corresponding to the minimum brightness data is used as a target sub-pixel; for each other sub-pixel (other sub-pixels other than the target sub-pixel in the basic color sub-pixel are simply referred to as other sub-pixels), first calculate The product of the target luminance data of the white sub-pixel and the ratio of the light of
  • the initial luminance data of the red sub-pixel is Ri
  • the initial luminance data of the green sub-pixel is Gi
  • the initial luminance data of the blue sub-pixel is Bi
  • the proportion of the light of the red sub-pixel in the light of the white sub-pixel is Rs
  • the ratio of the light of the green sub-pixel in the light of the white sub-pixel is Gs
  • the ratio of the light of the blue sub-pixel in the light of the white sub-pixel is Bs
  • the initial luminance data Ri of the red sub-pixel is divided by Calculating the first luminance data Ls1 by the ratio Rs of the light of the red sub-pixel in the light of the white sub-pixel
  • dividing the initial luminance data Gi of the green sub-pixel by the green of the light of the white sub-pixel The ratio Gs of the light of the sub-pixels is calculated to obtain the second luminance data Ls2
  • the size of the first luminance data Ls1, the second luminance data Ls2, and the third luminance data Ls3 is determined, and the minimum luminance data is used as the target luminance data of the white sub-pixel, and the sub-pixel corresponding to the smallest luminance data is used as the target sub-pixel.
  • Ls1 when the first luminance data Ls1 is the smallest, Ls1 is used as the target luminance data of the white sub-pixel, the red sub-pixel is used as the target sub-pixel, and the red sub-pixel is replaced by the white sub-pixel;
  • the second luminance data Ls2 when the second luminance data Ls2 is the smallest, Taking Ls2 as the target luminance data of the white sub-pixel, using the green sub-pixel as the target sub-pixel, and replacing the green sub-pixel with the white sub-pixel;
  • the third luminance data Ls3 when the third luminance data Ls3 is the smallest, using Ls3 as the target luminance data of the white sub-pixel,
  • the blue sub-pixel is used as the target sub-pixel, and the white sub-pixel is used instead of the blue sub-pixel to emit light.
  • the white sub-pixel is substituted for the corresponding two brightness data.
  • Sub-pixel illumination when Ls1 and Ls2 are equal and smaller than Ls3, the red sub-pixel and the green sub-pixel are illuminated by the white sub-pixel.
  • the target sub-pixel is selected in the basic color sub-pixel, the purpose of which is to replace the target sub-pixel illumination by the light of the white sub-pixel. Since the white sub-pixel has no color filter, the transmittance of the white sub-pixel is greater than that of the red sub-pixel and the green. The transmittance of the sub-pixel and the blue sub-pixel, and the combination of the red light emitted by the red sub-pixel, the green light emitted by the green sub-pixel, and the blue light emitted by the blue sub-pixel can display white light. Therefore, it is possible to use the white sub-pixel instead of the target sub-pixel to emit light, which can reduce the power consumption due to the low transmittance and have the same display effect.
  • the target luminance data of the white sub-pixel is Ls1
  • the target luminance data of the green sub-pixel is Gi-Ls1 ⁇ Gs
  • the target luminance data of the blue sub-pixel is Bi-Ls1 ⁇ Bs.
  • the target luminance data of the red sub-pixel is 0 (for example, the white sub-pixel emits light instead of the red sub-pixel, the target luminance data is Ls1, and the red sub-pixel does not emit light); when the second luminance data Ls2 is minimum, the white sub-pixel
  • the target luminance data is Ls2
  • the target luminance data of the red sub-pixel is Ri-Ls2 ⁇ Rs
  • the target luminance data of the blue sub-pixel is Bi-Ls2 ⁇ Bs
  • the target luminance data of the green sub-pixel is 0 (for example, white sub- The pixel instead of the green sub-pixel emits light, the target luminance data is Ls2, and the green sub-pixel does not emit light
  • the third luminance data Ls3 is the smallest, the target luminance data of the white sub-pixel is Ls3, and the target luminance data of the red sub-pixel is Ri-Ls3 ⁇ Rs, the target luminance data of the green sub-pixel is Gi-Ls3 ⁇ Gs
  • Step 305 Determine a compensation ratio of the white sub-pixel and the basic color sub-pixel according to a life index of the white sub-pixel and the white color OLED device corresponding to the basic color sub-pixel.
  • the white OLED device when the white OLED device is aged, there is a mapping relationship between the threshold voltage of the driving transistor and the lifetime index of the white OLED device.
  • the life index of the corresponding white OLED device of the driving transistor at different threshold voltages is determined, wherein the lifetime index refers to the attenuation ratio of the luminous efficiency.
  • the attenuation ratio of the luminous efficiency corresponding to the white sub-pixel and the basic color sub-pixel may be determined; and the white sub-determination is determined according to the attenuation ratio of the luminous efficiency.
  • the compensation ratio of the pixel and the basic color sub-pixel In general, the greater the attenuation ratio of luminous efficiency, the greater the proportion of electrical compensation required.
  • Step 306 Compensating the white sub-pixel and the white OLED device and the driving transistor corresponding to the basic color sub-pixel according to the target brightness data and the compensation ratio.
  • the luminous efficiency of the respective white OLED device is compensated according to the target luminance data of the white sub-pixel and the basic color sub-pixel, and the compensation ratio of the white sub-pixel and the basic color sub-pixel, and the driving transistor is The threshold voltage and mobility are compensated, and finally the final display of the image is achieved by adjusting the drive voltage.
  • the white OLED device corresponding to the white sub-pixel has a luminous efficiency attenuation ratio of 80%, and the white sub-pixel has a target luminance data of A, and the white OLED device compensates the luminance value to be A ⁇ 100/80, and the white OLED device is compensated to Luminous efficiency before aging.
  • the sub-pixels that need to be illuminated are compensated, and the sub-pixels that do not need to participate in the illumination are not compensated.
  • the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel By compensating the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel, the brightness of each sub-pixel that has undergone aging is improved, and the uniformity of the display color is improved.
  • Mixed dice pixels are typically white sub-pixels.
  • the white OLED device ages, the chromaticity coordinates of the light of the white sub-pixel are shifted, and the white color is determined according to the ratio of the light of the basic color sub-pixel in the light of the white sub-pixel, and the initial luminance data of the basic color sub-pixel.
  • the target brightness data of the sub-pixel and the basic color sub-pixel is such that the final display color of the image is color-free; the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel are compensated to improve the uniformity of the display color.
  • FIG. 4 a block diagram of a structure of a display control device according to a third embodiment of the present disclosure is shown.
  • the display control device 400 of the embodiment of the present disclosure includes:
  • the chromaticity coordinate obtaining module 401 is configured to acquire actual chromaticity coordinates of light of the current mixed color sub-pixel.
  • the ratio calculation module 402 is configured to calculate, according to the actual chromaticity coordinates of the light of the mixed color sub-pixel and the chromaticity coordinates of the light of the basic color sub-pixel, the basic color sub-pixel of the light of the mixed color sub-pixel The proportion of each light.
  • the target brightness data determining module 403 is configured to determine the mixed color according to the initial brightness data of the basic color sub-pixel and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel. Target luminance data of the sub-pixel and the basic color sub-pixel.
  • the chromaticity coordinate acquisition module 401 acquires the actual chromaticity coordinates of the light of the current mixed color sub-pixel; the ratio calculation module 402 is based on the actual chromaticity coordinates of the light of the mixed color sub-pixel and the basic color sub-pixel. a chromaticity coordinate of the light, calculating a ratio of each of the lights of the basic color sub-pixels of the light of the mixed color sub-pixel; initial luminance data according to the basic color sub-pixel, and the mixed color sub-pixel.
  • the target luminance data determination module 403 determines the target luminance data of the mixed color sub-pixel and the basic color sub-pixel, respectively, of the proportion of the light of the basic color sub-pixels in the light.
  • Mixed dice pixels are typically white sub-pixels.
  • the chromaticity coordinates of the light of the white sub-pixel are shifted, and the white color is determined according to the ratio of the light of the basic color sub-pixel in the light of the white sub-pixel, and the initial luminance data of the basic color sub-pixel.
  • chromaticity coordinate acquisition module 401 For a detailed description of the chromaticity coordinate acquisition module 401, the scale calculation module 402, and the target luminance data determination module 403, refer to the related descriptions of FIG. 2-3 above, and details are not described herein again.
  • FIG. 5 a block diagram showing the structure of a display control apparatus according to Embodiment 4 of the present disclosure is shown.
  • the display control device 500 of the embodiment of the present disclosure includes:
  • the chromaticity coordinate acquisition module 501 is configured to acquire actual chromaticity coordinates of light of the current mixed color sub-pixel.
  • the chromaticity coordinate acquisition module 501 may further include: a chromaticity coordinate first measurement sub-module 5011, configured to pre-measure the actual chromaticity coordinates of the light emitted by the white OLED device under different life indexes, and store a storage unit; a chromaticity coordinate finding sub-module 5012, configured to search, in the storage unit, an actual color of light emitted by the white OLED device corresponding to the life index according to a life index of a white OLED device corresponding to the current white sub-pixel The degree coordinate, which is the actual chromaticity coordinate of the light of the current white sub-pixel.
  • the chromaticity coordinate acquisition module 501 may further include: a chromaticity coordinate second measurement sub-module 5013, configured to measure the light of the white sub-pixel under the current life index of the white OLED device corresponding to the current white sub-pixel. Actual chromaticity coordinates.
  • the ratio calculation module 502 is configured to calculate, according to the actual chromaticity coordinates of the light of the mixed color sub-pixel and the chromaticity coordinates of the light of the basic color sub-pixel, the basic color sub-pixel of the light of the mixed color sub-pixel The proportion of each light.
  • the basic color sub-pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, the mixed-color sub-pixel is a white sub-pixel; or the basic color sub-pixel includes a yellow sub-pixel and a blue sub-pixel, The mixed color sub-pixel is a white sub-pixel.
  • the target brightness data determining module 503 is configured to determine the mixed color according to the initial brightness data of the basic color sub-pixel and the proportion of the light of the basic color sub-pixel in the light of the mixed color sub-pixel.
  • Target luminance data of the sub-pixel and the basic color sub-pixel may further include: a brightness data calculation sub-module 5031, configured to divide the initial brightness data of the red sub-pixel by the light of the red sub-pixel of the light of the white sub-pixel, respectively.
  • Calculating the first brightness data calculating the second brightness data according to the ratio of the initial brightness data of the green sub-pixel divided by the light of the green sub-pixel of the light of the white sub-pixel;
  • the initial luminance data of the blue sub-pixel is divided by the proportion of the light of the blue sub-pixel in the light of the white sub-pixel, and the third luminance data is calculated;
  • the target luminance data determining sub-module 5032 is used for In the first brightness data, the second brightness data, and the third brightness data, the smallest brightness data is used as the target brightness data of the white sub-pixel, and the sub-pixel corresponding to the minimum brightness data is used as the target sub-pixel;
  • a target luminance data calculation sub-module 5033 configured to: for each of the other sub-pixels (the basic color sub-pixels other than the target sub-pixel The sub-pixel is simply referred to as another sub-pixel), first calculating a product of the target luminance data of the white sub-pixel and the ratio of the light of the other sub-
  • the display control device 500 further includes:
  • the ratio determining module 504 is configured to determine a compensation ratio of the white sub-pixel and the basic color sub-pixel according to a life index of the white sub-pixel and the white OLED device corresponding to the basic color sub-pixel;
  • the compensation module 505 is configured to compensate the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel according to the target brightness data and the compensation ratio.
  • the display control device 500 further includes:
  • the chromaticity coordinate measuring module 506 is configured to measure the actual chromaticity coordinates of the light of the basic color sub-pixel under the current life index of the white OLED device corresponding to the current basic color sub-pixel.
  • acquiring actual chromaticity coordinates of light of the current mixed color sub-pixel measuring actual chromaticity coordinates of light of the basic color sub-pixel under the current life index of the white OLED device corresponding to the current basic color sub-pixel; Calculating, according to an actual chromaticity coordinate of the light of the mixed color sub-pixel and a chromaticity coordinate of light of the basic color sub-pixel, a proportion of light of the basic color sub-pixel in the light of the mixed color sub-pixel; Determining the mixed color sub-pixel and the basic color sub-pixel according to an initial luminance data of the basic color sub-pixel and a proportion of light of the basic color sub-pixel in the light of the mixed color sub-pixel Target brightness data; determining a compensation ratio of the white sub-pixel and the basic color sub-pixel according to a life index of the white sub-pixel and the white color OLED device corresponding to the basic color sub-pixel; according to the target brightness data Compensating for the white sub-pixel and the white OLED device corresponding to the basic color
  • the target luminance data of the white sub-pixel and the basic color sub-pixel is determined according to the ratio of the light of the basic color sub-pixel and the initial luminance data of the basic color sub-pixel among the light of the white sub-pixel, so that the final display color of the image is not color cast.
  • the uniformity of the display color is improved by compensating the white OLED device and the driving transistor corresponding to the white sub-pixel and the basic color sub-pixel.
  • Embodiments of the present disclosure may also include one or more processors and one or more memories.
  • the processor can process the data signals and can include various computing structures, such as a Complex Instruction Set Computer (CISC) architecture, a Structured Reduced Instruction Set Computer (RISC) architecture, or a structure that implements a combination of multiple instruction sets.
  • the memory can hold instructions and/or data executed by the processor. These instructions and/or data may include code for implementing some or all of the functionality of one or more of the devices described in this disclosure.
  • the memory includes dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, optical memory, or other memory well known to those skilled in the art.
  • DRAM dynamic random access memory
  • SRAM static random access memory
  • flash memory optical memory, or other memory well known to those skilled in the art.
  • the chromaticity coordinate acquisition module and its sub-modules, the target calculation module, the target luminance data determination module, and each sub-module thereof, the chromaticity coordinate measurement module, the ratio determination module, and the compensation in FIG. 4 and FIG. Modules each of which may include code and programs stored in a memory; the processor may execute the code and programs to perform some or all of the functions of the various modules or sub-modules described above.
  • the modules which may be dedicated hardware devices, are used to implement some or all of the functions described above.
  • it may be a circuit board or a combination of a plurality of circuit boards for implementing the functions as described above.
  • the one or a combination of the plurality of boards may include: (1) one or more processors; (2) one or more non-transitory computer readable memories coupled to the processor; and (3) A firmware executable by the processor that is stored in the memory.
  • the embodiment of the present disclosure also discloses a display device including the above display control device.
  • the display device can be applied to any product or component having a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a navigator, and the like.
  • the display device may further include a storage unit for storing actual chromaticity coordinates of the light emitted by the pre-measured white OLED device at different life indices.
  • the display device includes a display control device.
  • the display control device may: acquire actual chromaticity coordinates of light of the current mixed color sub-pixel; calculate the mixture according to actual chromaticity coordinates of light of the mixed color sub-pixel and chromaticity coordinates of light of the basic color sub-pixel The ratio of the light of the basic color sub-pixels in the light of the color sub-pixel; the initial brightness data according to the basic color sub-pixel, and the light of the basic color sub-pixel in the light of the mixed color sub-pixel The respective brightness ratios of the mixed color sub-pixels and the basic color sub-pixels are determined.
  • Mixed dice pixels are typically white sub-pixels.
  • the target luminance data of the white sub-pixel and the basic color sub-pixel is determined according to the ratio of the light including the basic color sub-pixel in the light of the white sub-pixel and the initial luminance data of the basic color sub-pixel, so that the final display color of the image is not color cast.

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Abstract

一种显示控制方法、装置及显示装置。该方法包括：获取当前混合色子像素的光的实际色度坐标(201)；根据混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算混合色子像素的光中基本颜色子像素的光各自所占的比例(202)；根据基本颜色子像素的初始亮度数据，以及混合色子像素的光中基本颜色子像素的光各自所占的比例，确定混合色子像素和基本颜色子像素的目标亮度数据(203)。混合色子像素为白色子像素。根据白色子像素的光中包含基本颜色子像素的光的比例和基本颜色子像素的初始亮度数据，确定白色子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色。

Description

显示控制方法、装置及显示装置 技术领域
本公开实施例涉及一种显示控制方法、装置及显示装置。
背景技术
有源矩阵有机发光二极管(Active Matrix Organic Light Emitting Diode，AMOLED)显示装置作为下一代显示装置，因为其快速的响应速度、高发光效率、高亮度和宽视角而引起很大的关注，有机发光二极管显示装置是通过驱动晶体管控制在有机发光二极管中流动的电流来显示图像。
参照图1，示出了现有的白色OLED显示装置的结构示意图，白色OLED(Organic Light Emitting Diode，有机发光二极管)显示装置可以通过白色OLED(WOLED)器件加上RGB三种颜色的滤色器来实现全彩色显示。白色OLED显示装置具有多个像素，每个像素包括用于产生红光的红色子像素、用于产生绿光的绿色子像素、用于产生蓝光的蓝色子像素、以及用于产生白光的白色子像素，每个子像素均包括一个白色OLED器件。例如，红色子像素还包括R滤色器(RCF)，用于透射从白色OLED器件入射的白光中的红光；绿色子像素还包括G滤色器(GCF)，用于透射从白色OLED器件入射的白光中的绿光；蓝色子像素还包括B滤色器(BCF)，用于透射从白色OLED器件入射的白光中的蓝光；白色子像素不具有滤色器(NO CF)，透射从白色OLED器件入射的全部白光。白色OLED器件具有R(红色)发光层、G(绿色)发光层、B(蓝色)发光层等层叠在阴极和阳极之间的结构，或者Y(黄色)发光层、B(蓝色)发光层等层叠在阴极和阳极之间的结构。
发明人发现：在目前的具有基本颜色子像素和混合色子像素的白色OLED显示装置中，通过多种颜色的发光层的组合来显示白色，在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移，从而引起显示颜色的偏色。
发明内容
本公开实施例提供了一种显示控制方法，应用于具有基本颜色子像素和 混合色子像素的显示装置，包括：
获取当前混合色子像素的光的实际色度坐标，其中，所述基本颜色子像素包括至少两种颜色的子像素，所述混合色子像素包括一种颜色的子像素，通过所述基本颜色子像素的光混合得到所述混合色子像素的光；
根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；
根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。
例如，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。
例如，所述显示装置为OLED显示装置，所述红色子像素、所述绿色子像素、所述蓝色子像素，以及所述白色子像素均包括白色OLED器件，所述红色子像素、所述绿色子像素和所述蓝色子像素分别通过滤色器得到各自子像素的颜色，所述获取当前混合色子像素的光的实际色度坐标的步骤，包括：
预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；
根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
例如，所述获取当前混合色子像素的光的实际色度坐标的步骤，包括：
测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
例如，在所述根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据的步骤之后，还包括：
根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；
根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
例如，在所述根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例的步骤之前，还包括：
测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标。
例如，所述根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据的步骤，包括：
根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；
在所述第一亮度数据、所述第二亮度数据、所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素，所述基本颜色子像素中除所述目标子像素之外的子像素为其他子像素；
对于每一个所述其他子像素：计算所述白色子像素的目标亮度数据与所述白色子像素的光中所述其他子像素的光所占的比例的乘积；以及将所述其他子像素的初始亮度数据减去所述乘积，其差值为所述其他子像素的目标亮度数据。
本公开实施例还提供了一种显示控制装置，包括：
色度坐标获取模块，用于获取当前混合色子像素的光的实际色度坐标；
比例计算模块，用于根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；
目标亮度数据确定模块，用于根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确 定所述混合色子像素和所述基本颜色子像素的目标亮度数据。
例如，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。
例如，所述色度坐标获取模块，包括：
色度坐标第一测量子模块，用于预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；
色度坐标查找子模块，用于根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
例如，所述色度坐标获取模块，包括：
色度坐标第二测量子模块，用于测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
例如，所述显示控制装置还包括：
比例确定模块，用于根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；
补偿模块，用于根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
例如，所述显示控制装置还包括：
色度坐标测量模块，用于测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标。
例如，所述目标亮度数据确定模块，包括：
亮度数据计算子模块，用于分别根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；
目标亮度数据确定子模块，用于在所述第一亮度数据、所述第二亮度数 据、所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素，所述基本颜色子像素中除所述目标子像素之外的子像素为其他子像素；
目标亮度数据计算子模块，用于：对于每一个所述其他子像素，计算所述白色子像素的目标亮度数据与所述白色子像素的光中所述其他子像素的光所占的比例的乘积，以及将所述其他子像素的初始亮度数据减去所述乘积，其差值为所述其他子像素的目标亮度数据。
本公开实施例还提供了一种显示装置，包括上述的显示控制装置。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1示出了现有的白色OLED显示装置的结构示意图；
图2示出了本公开实施例一的一种显示控制方法的流程图；
图3示出了本公开实施例二的一种显示控制方法的流程图；
图4示出了本公开实施例三的一种显示控制装置的结构框图；以及
图5示出了本公开实施例四的一种显示控制装置的结构框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通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，都属于本公开保护的范围。
本公开实施例提供一种显示控制方法、装置及显示装置，可以解决现有的白色OLED器件老化时，白色子像素的色度坐标偏移造成的显示颜色不均匀的问题。
本公开实施例应用于具有基本颜色子像素和混合色子像素的显示装置，其中，所述基本颜色子像素包括至少两种颜色的子像素，所述混合色子像素 包括一种颜色的子像素。通过所述基本颜色子像素的光，能混合得到混合色子像素的光。
实施例一
参照图2，示出了本公开实施例一的一种显示控制方法的流程图，具体可以包括如下步骤：
步骤201，获取当前混合色子像素的光的实际色度坐标。
本公开实施例中，混合色子像素为白色子像素，在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移，使得白色子像素的光中包含一定比例的基本颜色子像素的光。
例如，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。可以通过红色子像素发出的红光、绿色子像素发出的绿光、蓝色子像素发出的蓝光混合得到白光；还可以通过黄色子像素发出的黄光、蓝色子像素发出的蓝光混合得到白光；在白色子像素对应的白色OLED器件未发生老化时，白色子像素发出的光也为白光。
以基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，混合色子像素为白色子像素为例进行后续说明。
白色OLED装置将要进行显示时，通过白色子像素和基本颜色子像素对应的白色OLED器件发光，白色OLED器件发出的光均为白光；红色子像素包括R滤色器，可以将白色OLED器件发出的白光转化成红光；绿色子像素包括G滤色器，可以将白色OLED器件发出的白光转化成绿光；蓝色子像素包括B滤色器，可以将白色OLED器件发出的白光转化成蓝光。
应该注意的是，显示装置为OLED显示装置，所述红色子像素、所述绿色子像素、所述蓝色子像素、以及所述白色子像素均包括白色OLED器件，所述红色子像素、所述绿色子像素和所述蓝色子像素分别通过滤色器得到各自子像素的颜色。随着使用时间的增长，各子像素的白色OLED器件均会发生一定程度的老化。由于红色子像素、绿色子像素和蓝色子像素中分别有相应的R滤色器、G滤色器和B滤色器，而白色子像素中没有滤色器，则白色子像素相对于红色子像素、绿色子像素和蓝色子像素，白色子像素的光的色 度坐标偏移程度更大。因此，本公开实施例中，只考虑白色子像素的光的色度坐标偏移导致的显示颜色的偏色。
一般可以通过下面至少两种方式获取白色子像素的光的色度坐标。
第一种方式：预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
一般情况下，针对白色子像素，其驱动晶体管与白色OLED器件在使用过程中，是在完全相同的条件下老化的，驱动晶体管的阈值电压与白色OLED器件的寿命指数之间存在一个映射关系。通过实验测试，确定驱动晶体管在不同的阈值电压下，对应的白色OLED器件的寿命指数；白色OLED器件在不同的寿命指数下，通过实际测量白色OLED器件发出的光的实际色度坐标，并将其存储在存储单元中；根据当前白色子像素对应的驱动晶体管的阈值电压，确定白色OLED器件的寿命指数，在存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
第二种方式：测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
在当前的白色子像素对应的白色OLED器件的寿命指数下，通过实际测量白色OLED器件发出的光的实际色度坐标，作为白色子像素的光的实际色度坐标。
需要说明的是，第一种方式和第二种方式的测量时间节点和使用时间节点不同。第一种方式是预先测量出白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中，在将要进行画面显示时，从存储单元中查找当前白色OLED器件发出的光的实际色度坐标；第二种方式是在将要进行画面显示时，直接测量当前白色OLED器件发出的光的实际色度坐标。
步骤202，根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例。
本公开实施例中，根据获取到的白色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算白色子像素的光中对应的基本颜色子像素的光各自所占的比例。例如，当基本颜色子像素包括红色子像素、绿色子像素、蓝色子像素，计算白色子像素的光中对应的红色子像素的光、绿色子像素的光、蓝色子像素的光的比例。
需要说明的是，白色子像素的光中对应基本颜色子像素的光各自所占的比例，是指各基本颜色子像素的光在白色子像素的光中所占的百分比，代表的是一个比例系数。例如，白色子像素的光中对应红色子像素的光所占的比例为20％，白色子像素的光中对应绿色子像素的光所占的比例为40％，白色子像素的光中对应蓝色子像素的光所占的比例为40％。
例如，可以通过单独测量当前基本颜色子像素的光的实际色度坐标。由于本公开实施例只考虑白色子像素的光的色度坐标偏移，因此也可以根据色度坐标图直接确定基本颜色子像素的光的色度坐标。通过测量获取当前基本颜色子像素的光的实际色度坐标，其准确度更高。
步骤203，根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。例如，对于步骤203的详细描述，可以参见下图3的类似描述。
本公开实施例中，根据待显示图像中基本颜色子像素的初始亮度数据，以及白色子像素的光中对应基本颜色子像素的光各自所占的比例，确定白色子像素和基本颜色子像素的目标亮度数据。
将待显示图像中基本颜色子像素的初始亮度数据重新调整为白色子像素和基本颜色子像素的目标亮度数据，使得待显示图像的最终显示颜色无偏色。目标亮度数据为待显示图像最终的显示亮度数据，初始亮度数据为待显示图像输入的亮度数据。
例如，可以从信号源获取待显示图像的显示数据，所述显示数据包括基本颜色子像素的灰阶数据。通常采用伽马曲线将基本颜色子像素的灰阶数据转化为初始亮度数据，所述伽马曲线用于表示相应颜色子像素在不同灰阶下的显示亮度，目前最普遍采用的是伽马曲线2.2，即基本颜色子像素的初始亮度数据为灰阶数据的2.2次幂。
或者，从信号源获取待显示图像的显示数据中，显示数据还可以为基本颜色子像素的驱动电压，通过控制驱动电压的大小来设定相应的灰阶数据。
在本公开实施例中，获取当前混合色子像素的光的实际色度坐标；根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。混合色子像素一般为白色子像素。在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移。根据白色子像素的光中包含基本颜色子像素的光的比例，和基本颜色子像素的初始亮度数据，确定白色子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色。
实施例二
参照图3，示出了本公开实施例二的一种显示控制方法的流程图，具体可以包括如下步骤：
步骤301，获取当前混合色子像素的光的实际色度坐标。
此步骤与实施例一的步骤201原理类似，在此不再赘述。
步骤302，测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标。
本公开实施例中，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素。测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标，包括：测量红色子像素的光的实际色度坐标，测量绿色子像素的光的实际色度坐标，测量蓝色子像素的光的实际色度坐标。
步骤303，根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例。
此步骤与实施例一的步骤202原理类似，在此不再赘述。
步骤304，根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子 像素和所述基本颜色子像素的目标亮度数据。
本公开实施例中，根据基本颜色子像素的初始亮度数据，以及白色子像素的光中对应基本颜色子像素的光各自所占的比例，重新确定白色子像素和基本颜色子像素的目标亮度数据，使得待显示图像的最终显示颜色无偏色。
具体的，根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；在所述第一亮度数据、所述第二亮度数据、所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素；对于每一个其他子像素(所述基本颜色子像素中除目标子像素外的其他子像素简称为其他子像素)，首先计算所述白色子像素的目标亮度数据与所述白色子像素的光中该其他子像素的光所占的比例的乘积，然后将该其他子像素的初始亮度数据减去该乘积，其差值为该其他子像素的目标亮度数据。
例如，红色子像素的初始亮度数据为Ri，绿色子像素的初始亮度数据为Gi，蓝色子像素的初始亮度数据为Bi，白色子像素的光中红色子像素的光所占的比例为Rs，白色子像素的光中绿色子像素的光所占的比例为Gs，白色子像素的光中蓝色子像素的光所占的比例为Bs；根据红色子像素的初始亮度数据Ri除以所述白色子像素的光中所述红色子像素的光所占的比例Rs，计算得到第一亮度数据Ls1；根据绿色子像素的初始亮度数据Gi除以所述白色子像素的光中所述绿色子像素的光所占的比例Gs，计算得到第二亮度数据Ls2；根据蓝色子像素的初始亮度数据Bi除以所述白色子像素的光中所述蓝色子像素的光所占的比例Bs，计算得到第三亮度数据Ls3；其中，Ls1＝Ri/Rs，Ls2＝Gi/Gs，Ls3＝Bi/Bs。
判断第一亮度数据Ls1、第二亮度数据Ls2和第三亮度数据Ls3的大小，将最小的亮度数据作为白色子像素的目标亮度数据，最小的亮度数据对应的子像素作为目标子像素。例如，当第一亮度数据Ls1最小时，将Ls1作为白色子像素的目标亮度数据，将红色子像素作为目标子像素，通过白色子像素 代替红色子像素发光；当第二亮度数据Ls2最小时，将Ls2作为白色子像素的目标亮度数据，将绿色子像素作为目标子像素，通过白色子像素代替绿色子像素发光；当第三亮度数据Ls3最小时，将Ls3作为白色子像素的目标亮度数据，将蓝色子像素作为目标子像素，通过白色子像素代替蓝色子像素发光。此外，当第一亮度数据Ls1、第二亮度数据Ls2和第三亮度数据Ls3中任意两个亮度数据相等，且小于另外一个亮度数据时，通过白色子像素代替所述任意两个亮度数据对应的子像素发光；当Ls1和Ls2相等，且小于Ls3时，通过白色子像素代替红色子像素、绿色子像素发光。
例如，在基本颜色子像素中选择目标子像素，其目的是通过白色子像素的光代替目标子像素发光，由于白色子像素没有滤色器，白色子像素的透过率大于红色子像素、绿色子像素、蓝色子像素的透过率，而红色子像素发出的红光、绿色子像素发出的绿光、蓝色子像素发出的蓝光的组合可以显示白光。因此，可以利用白色子像素代替目标子像素发光，既可以降低因透过率低引起的功耗，又具有相同的显示效果。
例如，当第一亮度数据Ls1最小时，白色子像素的目标亮度数据为Ls1，则绿色子像素的目标亮度数据为Gi－Ls1×Gs，蓝色子像素的目标亮度数据为Bi－Ls1×Bs，红色子像素的目标亮度数据为0(例如，白色子像素代替红色子像素发光，其目标亮度数据为Ls1，而红色子像素不发光)；当第二亮度数据Ls2最小时，白色子像素的目标亮度数据为Ls2，则红色子像素的目标亮度数据为Ri－Ls2×Rs，蓝色子像素的目标亮度数据为Bi－Ls2×Bs，绿色子像素的目标亮度数据为0(例如，白色子像素代替绿色子像素发光，其目标亮度数据为Ls2，而绿色子像素不发光)；当第三亮度数据Ls3最小时，白色子像素的目标亮度数据为Ls3，则红色子像素的目标亮度数据为Ri－Ls3×Rs，绿色子像素的目标亮度数据为Gi－Ls3×Gs，蓝色子像素的目标亮度数据为0(例如，白色子像素代替蓝色子像素发光，其目标亮度数据为Ls3，而蓝色子像素不发光)。
步骤305，根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例。
本公开实施例中，针对每个子像素，其白色OLED器件老化时，驱动晶体管的阈值电压与白色OLED器件的寿命指数之间存在一个映射关系。通过 实验测试，确定驱动晶体管在不同的阈值电压下对应的白色OLED器件的寿命指数，其中，寿命指数指的是发光效率的衰减比例。当白色子像素和基本颜色子像素对应的白色OLED器件处于不同的寿命指数下，则可以确定白色子像素和基本颜色子像素对应的发光效率的衰减比例；根据发光效率的衰减比例，确定白色子像素和基本颜色子像素的补偿比例。一般情况下，发光效率的衰减比例越大，则需要的电补偿比例越大。
根据当前的白色子像素和基本颜色子像素对应的驱动晶体管的阈值电压，确定白色OLED器件的寿命指数；然后，根据当前的白色子像素和基本颜色子像素对应的白色OLED器件的寿命指数，确定白色子像素和基本颜色子像素的补偿比例。
步骤306，根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
本公开实施例中，根据白色子像素和基本颜色子像素的目标亮度数据，以及白色子像素和基本颜色子像素的补偿比例，对各自的白色OLED器件的发光效率进行补偿，以及对驱动晶体管的阈值电压和迁移率进行补偿，最终通过调整驱动电压实现图像的最终显示。
例如，白色子像素对应的白色OLED器件发光效率衰减比例为80％，白色子像素的目标亮度数据为A，则白色OLED器件补偿后的亮度值为A×100/80，将白色OLED器件补偿至老化之前的发光效率。
一般情况下，对于需要发光的子像素进行补偿，而不需要参与发光的子像素不进行补偿。
通过对白色子像素和基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿，提高已经发生老化的各子像素的亮度，提高显示颜色的均匀性。
在本公开实施例：获取当前混合色子像素的光的实际色度坐标；测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标；根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据；根据所述白色子 像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。混合色子像素一般为白色子像素。在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移，根据白色子像素的光中包含基本颜色子像素的光的比例，和基本颜色子像素的初始亮度数据，确定白色子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色；通过对白色子像素和基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿，提高显示颜色的均匀性。
实施例三
参照图4，示出了本公开实施例三的一种显示控制装置的结构框图。
本公开实施例的显示控制装置400包括：
色度坐标获取模块401，用于获取当前混合色子像素的光的实际色度坐标。
比例计算模块402，用于根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例。
目标亮度数据确定模块403，用于根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。
在本公开实施例：色度坐标获取模块401获取当前混合色子像素的光的实际色度坐标；比例计算模块402根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，目标亮度数据确定模块403确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。混合色子像素一般为白色子像素。在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移，根据白色子像素的光中包含基本颜色子像素的光的比例，和基本颜色子像素的初始亮度数据，确定白色子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色。
对于色度坐标获取模块401、比例计算模块402和目标亮度数据确定模块403的具体描述，可以参见上述图2-3的相关描述，在此不再赘述。
实施例四
参照图5，示出了本公开实施例四的一种显示控制装置的结构框图。
本公开实施例的显示控制装置500包括：
色度坐标获取模块501，用于获取当前混合色子像素的光的实际色度坐标。例如，所述色度坐标获取模块501，进一步可以包括：色度坐标第一测量子模块5011，用于预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；色度坐标查找子模块5012，用于根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。例如，所述色度坐标获取模块501，进一步可以包括：色度坐标第二测量子模块5013，用于测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
比例计算模块502，用于根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例。
例如，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。
目标亮度数据确定模块503，用于根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。例如，所述目标亮度数据确定模块503，进一步可以包括：亮度数据计算子模块5031，用于分别根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；目标亮度数据确定子模块5032，用于在所述第一亮度数据、所述第二亮度数据、 所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素；目标亮度数据计算子模块5033，用于：对于每一个其他子像素(所述基本颜色子像素中除目标子像素外的其他子像素简称为其他子像素)，首先计算所述白色子像素的目标亮度数据与所述白色子像素的光中该其他子像素的光所占的比例的乘积，然后将该其他子像素的初始亮度数据减去该乘积，其差值为该其他子像素的目标亮度数据。
例如，所述显示控制装置500，还包括：
比例确定模块504，用于根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；
补偿模块505，用于根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
例如，所述显示控制装置500，还包括：
色度坐标测量模块506，用于测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标。
在本公开实施例，获取当前混合色子像素的光的实际色度坐标；测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标；根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据；根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。混合色子像素一般为白色子像素。在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移。根据白色子像素的光中包含基本颜色子像素的光的比例和基本颜色子像素的初始亮度数据，确定白色 子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色。通过对白色子像素和基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿，提高显示颜色的均匀性。
本公开的实施例还可以包括一个或多个处理器以及一个或多个存储器。处理器可以处理数据信号，可以包括各种计算结构，例如复杂指令集计算机(CISC)结构、结构精简指令集计算机(RISC)结构或者一种实行多种指令集组合的结构。存储器可以保存处理器执行的指令和/或数据。这些指令和/或数据可以包括代码，用于实现本公开实施例描述的一个或多个装置的一些功能或全部功能。例如，存储器包括动态随机存取存储器(DRAM)、静态随机存取存储器(SRAM)、闪存(flash memory)、光存储器(optical memory)，或其他的本领域技术人员熟知的存储器。
在一些实施例中，图4和图5中的色度坐标获取模块及其各子模块、比例计算模块、目标亮度数据确定模块及其各子模块、色度坐标测量模块、比例确定模块和补偿模块，可以分别包括存储在存储器中的代码和程序；处理器可以执行该代码和程序以实现如上所述各模块或子模块一些功能或全部功能。
在一些实施例中，图4和图5中的色度坐标获取模块及其各子模块、比例计算模块、目标亮度数据确定模块及其各子模块、色度坐标测量模块、比例确定模块和补偿模块，可以是专用硬件器件，用来实现如上所述的一些或全部功能。例如，可以是一个电路板或多个电路板的组合，用于实现如上所述的功能。该一个电路板或多个电路板的组合可以包括：(1)一个或多个处理器；(2)与处理器相连接的一个或多个非暂时的计算机可读的存储器；以及(3)处理器可执行的存储在存储器中的固件。
实施例五
本公开实施例还公开了一种显示装置，包括上述的显示控制装置。该显示装置可以应用于手机、平板电脑、电视机、显示器、笔记本电脑、导航仪等任何具有显示功能的产品或部件。
例如，所述显示装置还可以包括存储单元，用于存储预先测量的白色OLED器件在不同的寿命指数下发出的光的实际色度坐标。
在本公开实施例中，关于显示控制装置的具体描述可以参照实施例三和 实施例四的描述，本实施例对此不再赘述。
在本公开实施例中，该显示装置包括显示控制装置。该显示控制装置可以：获取当前混合色子像素的光的实际色度坐标；根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。混合色子像素一般为白色子像素。在白色OLED器件老化时，白色子像素的光的色度坐标会发生偏移。根据白色子像素的光中包含基本颜色子像素的光的比例和基本颜色子像素的初始亮度数据，确定白色子像素和基本颜色子像素的目标亮度数据，使得图像的最终显示颜色无偏色。
对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本公开并不受所描述的动作顺序的限制，因为依据本公开，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本公开所必须的。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上对本公开所提供的一种显示控制方法、装置及显示装置，进行了详细介绍，本文中应用了具体个例对本公开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公开的方法及其核心思想；同时，对于本领域的一般技术人员，依据本公开的思想，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公开的限制。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。
本公开要求于2017年6月30日递交的中国专利申请第201710519926.5号的优先权，在此全文引用上述中国专利申请公开的内容以作为本公开的一部分。

Claims (15)

  1. 一种显示控制方法，应用于具有基本颜色子像素和混合色子像素的显示装置，包括：
    获取当前混合色子像素的光的实际色度坐标，其中，所述基本颜色子像素包括至少两种颜色的子像素，所述混合色子像素包括一种颜色的子像素，通过所述基本颜色子像素的光混合得到所述混合色子像素的光；
    根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；以及
    根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。
  2. 根据权利要求1所述的方法，其中，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者，所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。
  3. 根据权利要求2所述的方法，其中，所述显示装置为OLED显示装置，所述红色子像素、所述绿色子像素、所述蓝色子像素、以及所述白色子像素均包括白色OLED器件，所述红色子像素、所述绿色子像素和所述蓝色子像素分别通过滤色器得到各自子像素的颜色；
    所述获取当前混合色子像素的光的实际色度坐标的步骤，包括：
    预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；以及
    根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
  4. 根据权利要求2所述的方法，其中，所述获取当前混合色子像素的光的实际色度坐标的步骤，包括：
    测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
  5. 根据权利要求2所述的方法，其中，在所述根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据的步骤之后，还包括：
    根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；以及
    根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
  6. 根据权利要求1所述的方法，其中，在所述根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例的步骤之前，还包括：
    测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，所述基本颜色子像素的光的实际色度坐标。
  7. 根据权利要求2所述的方法，其中，所述根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据的步骤，包括：
    根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；
    在所述第一亮度数据、所述第二亮度数据、所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素，所述基本颜色子像素中除所述目标子像素之外的子像素为其他子像素；以及
    对于每一个所述其他子像素：计算所述白色子像素的目标亮度数据与所述白色子像素的光中所述其他子像素的光所占的比例的乘积；以及将所述其他子像素的初始亮度数据减去所述乘积，其差值为所述其他子像素的目标亮度数据。
  8. 一种显示控制装置，包括：
    色度坐标获取模块，用于获取当前混合色子像素的光的实际色度坐标；
    比例计算模块，用于根据所述混合色子像素的光的实际色度坐标和基本颜色子像素的光的色度坐标，计算所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例；
    目标亮度数据确定模块，用于根据所述基本颜色子像素的初始亮度数据，以及所述混合色子像素的光中所述基本颜色子像素的光各自所占的比例，确定所述混合色子像素和所述基本颜色子像素的目标亮度数据。
  9. 根据权利要求8所述的装置，其中，所述基本颜色子像素包括红色子像素、绿色子像素和蓝色子像素，所述混合色子像素为白色子像素；或者所述基本颜色子像素包括黄色子像素和蓝色子像素，所述混合色子像素为白色子像素。
  10. 根据权利要求9所述的装置，其中，所述色度坐标获取模块，包括：
    色度坐标第一测量子模块，用于预先测量白色OLED器件在不同的寿命指数下发出的光的实际色度坐标，并存储在存储单元中；
    色度坐标查找子模块，用于根据当前白色子像素对应的白色OLED器件的寿命指数，在所述存储单元中查找所述寿命指数对应的白色OLED器件发出的光的实际色度坐标，作为当前白色子像素的光的实际色度坐标。
  11. 根据权利要求9所述的装置，其中，所述色度坐标获取模块，包括：
    色度坐标第二测量子模块，用于测量当前白色子像素对应的白色OLED器件在当前的寿命指数下，白色子像素的光的实际色度坐标。
  12. 根据权利要求9所述的装置，还包括：
    比例确定模块，用于根据所述白色子像素和所述基本颜色子像素对应的白色OLED器件的寿命指数，确定所述白色子像素和所述基本颜色子像素的补偿比例；
    补偿模块，用于根据所述目标亮度数据和所述补偿比例，对所述白色子像素和所述基本颜色子像素对应的白色OLED器件、驱动晶体管进行补偿。
  13. 根据权利要求8所述的装置，还包括：
    色度坐标测量模块，用于测量当前基本颜色子像素对应的白色OLED器件在当前的寿命指数下，基本颜色子像素的光的实际色度坐标。
  14. 根据权利要求9所述的装置，其中，所述目标亮度数据确定模块，包括：
    亮度数据计算子模块，用于分别根据红色子像素的初始亮度数据除以所述白色子像素的光中所述红色子像素的光所占的比例，计算得到第一亮度数据；根据绿色子像素的初始亮度数据除以所述白色子像素的光中所述绿色子像素的光所占的比例，计算得到第二亮度数据；根据蓝色子像素的初始亮度数据除以所述白色子像素的光中所述蓝色子像素的光所占的比例，计算得到第三亮度数据；
    目标亮度数据确定子模块，用于在所述第一亮度数据、所述第二亮度数据、所述第三亮度数据中，将最小的亮度数据作为白色子像素的目标亮度数据，所述最小的亮度数据对应的子像素作为目标子像素，所述基本颜色子像素中除所述目标子像素之外的子像素为其他子像素；
    目标亮度数据计算子模块，用于：对于每一个所述其他子像素，计算所述白色子像素的目标亮度数据与所述白色子像素的光中所述其他子像素的光所占的比例的乘积，以及将所述其他子像素的初始亮度数据减去所述乘积，其差值为所述其他子像素的目标亮度数据。
  15. 一种显示装置，包括如权利要求8～14任一项所述的装置。
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