WO2020103244A1 - 像素驱动方法、像素驱动装置和计算机设备 - Google Patents

像素驱动方法、像素驱动装置和计算机设备

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Publication number
WO2020103244A1
WO2020103244A1 PCT/CN2018/121540 CN2018121540W WO2020103244A1 WO 2020103244 A1 WO2020103244 A1 WO 2020103244A1 CN 2018121540 W CN2018121540 W CN 2018121540W WO 2020103244 A1 WO2020103244 A1 WO 2020103244A1
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Prior art keywords
pixel
signal
color
type
pixels
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/121540
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English (en)
French (fr)
Inventor
康志聪
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HKC Co Ltd
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HKC Co Ltd
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Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to US17/273,299 priority Critical patent/US11308901B2/en
Publication of WO2020103244A1 publication Critical patent/WO2020103244A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • 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

  • the present application relates to a pixel driving method, pixel driving device, and computer equipment.
  • VA Very Alignment liquid crystal
  • IPS In-Plane Switching
  • the production efficiency is high and the cost is low, but compared with IPS (In-Plane Switching, plane switching) liquid crystal technology, there are more obvious optical property defects, especially Large-scale panels require a large viewing angle for commercial applications, but as shown in Figure 1, when VA (Vertical Alignment liquid crystal) type liquid crystal technology is used for display driving, the brightness of the large viewing angle quickly saturates with the signal (such as (Curve 2), resulting in a serious deterioration of the quality of the viewing angle contrast and color shift compared to the front view (as shown in curve 1, the brightness changes with the signal under the positive viewing angle).
  • VA Very Alignment liquid crystal
  • IPS In-Plane Switching, plane switching
  • the pixel driving method provided by the exemplary technology may cause the overall picture to be grainy due to the bright and dark sub-pixels.
  • the purpose of the present application is to provide a pixel driving method, a pixel driving device and a computer device, so as to avoid a grainy feeling when displaying a picture, thereby improving the display quality.
  • a pixel driving method including:
  • the unit pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • a first type of gray-scale signal is loaded to a part of the same-color sub-pixels in the pixel block according to a preset rule, and a second type of gray-scale signal is loaded to the remaining same-color sub-pixels, wherein ,
  • the gray signal of the first type is not equal to the corresponding gray signal of the second type.
  • the pixel driving method provided in the embodiment of the present application determines the average pixel signal of each color sub-pixel in each unit pixel in the pixel block according to the average pixel signal of each color sub-pixel and the preset main color development judgment condition.
  • the color of the pixel block is biased during display.
  • the first type of gray scale signal and the second type of gray scale signal are loaded to each sub-pixel to control the ratio and brightness of the high and low gray scale voltages loaded in the pixel block to improve the pixel The graininess of the block display.
  • the main color rendering judgment condition includes a red color rendering condition.
  • a first type of gray scale is loaded to a part of the same color sub-pixels in the pixel block according to a preset rule Signal, and the step of loading the second type of gray-scale signal to the remaining same-color sub-pixels includes:
  • the first grouping unit includes two Adjacent unit pixels, and there is no same unit pixel in each first grouping unit;
  • the second grouping unit includes There are four adjacent unit pixels, and there is no same unit pixel in each second grouping unit.
  • the main color rendering judgment condition includes a green color rendering condition.
  • a first type of gray scale is loaded to a part of the same-color sub-pixels in the pixel block according to a preset rule Signal, and the step of loading the second type of gray-scale signal to the remaining same-color sub-pixels includes:
  • the two adjacent green sub-pixels of each first grouping unit in the pixel block are respectively loaded with the first-type gray-scale signal and the second-type gray-scale signal;
  • red sub-pixels of each second grouping unit in the pixel block are loaded with the first-type gray-scale signal, and one red sub-pixel in the second grouping unit is loaded with the second-type gray-scale signal.
  • a first type of grayscale signal is loaded to a part of the same-color sub-pixels in the pixel block according to a preset rule, and a The steps of the second-class grayscale signal include:
  • the blue sub-pixels of each first grouping unit in the pixel block are respectively loaded with the first-type grayscale signal and the second-type grayscale signal.
  • the first grouping unit includes two adjacent unit pixels, and each of the first There are no identical unit pixels in the grouping unit.
  • the main color rendering judgment condition includes a blue color rendering condition.
  • a first type of gray is loaded into a part of the same color sub-pixels in the pixel block according to a preset rule Signal, and the step of loading the second type of gray-scale signal to the remaining same-color sub-pixels includes:
  • the first type of grayscale signal is loaded to the three red sub-pixels of each second grouping unit in the pixel block, and the first red sub-pixel is loaded to the remaining one of the second grouping unit.
  • Type 2 grayscale signal
  • the method before the step of obtaining the average pixel signal of each color sub-pixel in each unit pixel in the pixel block, the method further includes:
  • the first grouping unit includes two adjacent unit pixels, and each of the first grouping units No identical unit pixels.
  • the color signal includes chroma and hue angle
  • the red color development conditions are:
  • H is chroma
  • C hue angle
  • C TL1 is a predefined minimum red hue threshold
  • C TH2 is a predefined maximum red hue threshold.
  • a pixel driving device including:
  • the average signal obtaining circuit element is used to obtain an average pixel signal of each color sub-pixel in each unit pixel in the pixel block, and the unit pixel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel;
  • the color signal obtaining unit is used to obtain the color signal of the pixel block according to the average pixel signal of each color sub-pixel;
  • the driving signal loading unit is used to load the first-type gray-scale signal to a part of the same-color sub-pixels in the pixel block according to the preset rule according to the color signal and the preset main color judgment condition, and load the first-color signal to the remaining same-color sub-pixels
  • the gray signal of the second type wherein the gray signal of the first type is not equal to the corresponding gray signal of the second type.
  • a computer device includes a memory and a processor, and the memory stores a computer program, which is characterized in that the processor implements the following steps when the computer program is executed:
  • the unit pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • a first type of gray-scale signal is loaded to a part of the same-color sub-pixels in the pixel block according to a preset rule, and a second type of gray-scale signal is loaded to the remaining same-color sub-pixels, wherein ,
  • the gray signal of the first type is not equal to the corresponding gray signal of the second type.
  • the processor also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two Adjacent unit pixels, and there is no same unit pixel in each first grouping unit;
  • the second grouping unit includes There are four adjacent unit pixels, and there is no same unit pixel in each second grouping unit.
  • the processor also executes the following steps when executing the computer-readable instructions:
  • the two adjacent green sub-pixels of each first grouping unit in the pixel block are respectively loaded with the first-type gray-scale signal and the second-type gray-scale signal;
  • red sub-pixels of each second grouping unit in the pixel block are loaded with the first-type gray-scale signal, and one red sub-pixel in the second grouping unit is loaded with the second-type gray-scale signal.
  • the processor also executes the following steps when executing the computer-readable instructions:
  • the blue sub-pixels of each first grouping unit in the pixel block are respectively loaded with the first-type grayscale signal and the second-type grayscale signal.
  • the first grouping unit includes two adjacent unit pixels, and each of the first There are no identical unit pixels in the grouping unit.
  • the processor also executes the following steps when executing the computer-readable instructions:
  • the first type of grayscale signal is loaded to the three red sub-pixels of each second grouping unit in the pixel block, and the first red sub-pixel is loaded to the remaining one of the second grouping unit.
  • Type 2 grayscale signal
  • the processor also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two adjacent unit pixels, and each of the first grouping units No identical unit pixels.
  • the color signal includes chroma and hue angle
  • the red color development conditions are:
  • H is chroma
  • C hue angle
  • C TL1 is a predefined minimum red hue threshold
  • C TH2 is a predefined maximum red hue threshold.
  • Figure 1 shows the change of pixel display brightness with gray scale signal under positive viewing angle and large viewing angle when VA liquid crystal technology is used for display driving
  • Fig. 2 shows how the display brightness of the main and sub-pixels changes with the gray-scale signal when the main and sub-pixels are respectively driven by different gray-scale signals
  • FIG. 3 is a schematic diagram of pixel voltage distribution of primary and secondary pixels in a pixel driving method in an embodiment
  • FIG. 5 is a schematic flowchart of a pixel driving method in an embodiment
  • FIG. 6 is a relationship table between the first-type grayscale signal and the second-type grayscale signal corresponding to each average pixel signal in an embodiment
  • FIG. 7 is an embodiment, based on the color signal and the preset main color rendering judgment condition, according to the preset rule, the first type of grayscale signal is loaded to a part of the same-color sub-pixels in the pixel block, and the first Schematic diagram of the second-class gray-scale signal steps;
  • FIG. 8 is a schematic diagram of loading grayscale signals to each sub-pixel in an embodiment
  • FIG. 10 is a schematic diagram of loading grayscale signals to sub-pixels in yet another embodiment
  • FIG. 11 is a schematic diagram of the steps of acquiring the first-type grayscale signal and the second-type grayscale signal in an embodiment
  • FIG. 12 is a schematic diagram of steps for obtaining a first-type grayscale signal and a second-type grayscale signal in yet another embodiment
  • FIG. 13 is a schematic flowchart of a pixel driving method in still another embodiment
  • FIG. 14 is a schematic structural diagram of a pixel driving device in an embodiment
  • 15 is an internal structure diagram of a computer device in an embodiment.
  • a set of high-gray-scale signals RH and low-gray-scale signals RL can be used to replace the atomic pixels R1 and R2 signals.
  • the combination of low gray-scale signals can achieve the effect of improving the deviation of the visual role in the viewing angle.
  • the average brightness of this group of high-gray-scale signals RH and low-gray-scale signals RL can maintain the same brightness average of the two original independent sub-pixel signals R1 and R2.
  • the grayscale signals of each sub-pixel are 0, 1, ..., 255, then the above two original independent sub-pixel signals R1, R2 are also 0, 1, ...,
  • the gray-scale signal in 255, the average signal Rave of two adjacent sub-pixels of the same color in R1, R2 is also the gray-scale signal in 0, 1, ..., 255, the average signal Rave of two adjacent sub-pixels can be looked up in the table A set of high and low gray scale signal groups RH, RL corresponding to the average signal Rave. As shown in FIG. 3, two adjacent sub-pixels of the same color are driven and displayed with high and low gray scale signals, respectively.
  • the applicant has summarized the implementation process and found that the above-mentioned spatially high and low grayscale signals drive each sub-pixel to improve the visual role bias, but the disadvantage is that the bright and dark sub-pixels are interphase, and when the brightness difference between bright and dark sub-pixels is large, the display It is easy to be grainy at times, and the display quality cannot be guaranteed.
  • an embodiment of the present application provides a pixel driving method, including:
  • S20 Obtain an average pixel signal of each color sub-pixel in each unit pixel in the pixel block.
  • the unit pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • the pixel block may be a block including a plurality of unit pixels, for example, one pixel block may be a block including n * m unit pixels.
  • the unit pixel includes a red subpixel, a green subpixel, and a blue subpixel.
  • the main color development judgment condition is for judging which color of the red, green, and blue the pixel block composed of each unit pixel is biased during display.
  • the preset rule is used to instruct the adjustment of the difference between the first type grayscale signal and the second type grayscale signal loaded by the same-color sub-pixels in each unit pixel, and to adjust the loading of the first type grayscale signal and the second type grayscale signal in the pixel block.
  • the proportion of the sub-pixels of the second-level grayscale signal is set in advance by empirical experiments and other experiences to reduce the rule of graininess when displaying pixel blocks.
  • the first-type grayscale signal and the second-type grayscale signal are correspondingly set, that is, each first-type grayscale signal corresponds to a second-type grayscale signal, and the value of the first-type grayscale signal corresponds to The values of the second type of grayscale signals are not equal.
  • the average signal of each color sub-pixel corresponds to a set of first-level grayscale signals and second-level grayscale signals.
  • the average pixel signal of each color sub-pixel in each unit pixel in the pixel block is obtained, and then the color signal of the pixel block is obtained according to the average pixel signal of each color sub-pixel, according to the color signal and the preset main color rendering Judging conditions, judging the biased color of the pixel block when displaying, then according to the biased color, according to a preset rule, a first type of grayscale signal is loaded to a part of the same-color sub-pixels in the pixel block, and the remaining same-color sub-pixels are loaded The second type of gray scale signal.
  • a part of the same-color sub-pixels and the remaining same-color sub-pixels refer to the same color sub-pixels.
  • the rule for loading gray-scale signals refers to the same-color sub-pixels in the unit pixel.
  • the main color rendering judgment condition includes a red color rendering condition.
  • a part of the same color sub-pixels in the pixel block are The steps of loading the first-type grayscale signal and loading the second-type grayscale signal to the remaining same-color sub-pixels include:
  • the second grouping unit includes There are four adjacent unit pixels, and there is no same unit pixel in each second grouping unit.
  • L f1 (R, G, B)
  • C f1 (R, G, B)
  • H f1 (R, G, B).
  • H is the color representative, from 0 0 to 360 0 representing different hue colors, defined as 0 0 is red, 90 0 is yellow, 180 0 is green, 270 0 is blue, and C is color purity, representing The vividness of the color.
  • the range of C is expressed as 0 to 100. 100 represents the most vivid color.
  • the value of C shows the display of high and low grayscale signals on the LCD to a certain extent. Therefore, by acquiring the pixel signal of the red sub-pixel, the pixel signal of the green sub-pixel, and the pixel signal of the blue sub-pixel, the corresponding LCH value can be obtained.
  • the average pixel signal R of the red sub-pixel, the average pixel signal G of the green sub-pixel, and the average signal B of the blue sub-pixel are obtained by acquiring the pixel signals of each color sub-pixel, according to The obtained average pixel signal of each color sub-pixel can obtain the brightness, chroma and hue angle in the color signal corresponding to the pixel block.
  • the average color of the pixel block when displayed The signal is biased towards red, so for most of the red sub-pixels in this pixel block, corresponding to Figures 6 and 8, the signals of two adjacent red sub-pixels of each first grouping unit in this interval are averaged, and the average is obtained by looking up the table
  • the first-type and second-type grayscale signals corresponding to the pixel signals respectively drive the two adjacent red sub-pixels.
  • the green sub-pixels corresponding to FIG. 8 and FIG.
  • the four adjacent green sub-pixel signals of the second grouping unit in this interval are averaged to obtain the first type of gray-scale signal GH ′ corresponding to the average pixel signal and the first The second-type grayscale signal GL ', and then load the first-type grayscale signal GH' to the three green sub-pixels in the second grouping unit, and load the second-type grayscale signal GL 'to the remaining one green sub-pixel.
  • the manners of obtaining the first gray-scale signal and the second gray-scale signal can be obtained by looking up a table, and the table is preset.
  • the first gray-scale signal may be a high gray-scale signal relative to the second gray-scale signal, or a medium-low gray-scale signal relative to the second gray-scale signal, and the first gray-scale signal may also be relative to the second gray-scale signal Low-level signal of the first-order signal.
  • the main color rendering judgment condition includes a green color rendering condition.
  • a part of the same color sub-pixels in the pixel block are provided according to the preset rule.
  • the steps of loading the first-type grayscale signal and loading the second-type grayscale signal to the remaining same-color sub-pixels include:
  • red sub-pixels of each second grouping unit in the pixel block are loaded with the first-type gray-scale signal, and one red sub-pixel in the second grouping unit is loaded with the second-type gray-scale signal.
  • the color signal meets the green color development condition, it means that for most green sub-pixels of the pixel block, corresponding to FIGS. 6 and 10, two adjacent green colors of each first grouping unit in the interval
  • the sub-pixel signals are averaged, and the look-up table obtains the first-type gray-scale signal GH and the second-type gray-scale signal GL corresponding to the average pixel signal to respectively drive the two adjacent green sub-pixels.
  • the red sub-pixels corresponding to FIGS.
  • the four adjacent red sub-pixel signals of the second grouping unit in this interval are averaged to obtain the first type of gray-scale signal RH ′ corresponding to the average pixel signal and the first The second-type grayscale signal RL ', and then load the first-type grayscale signal RH' to the three red sub-pixels in the second grouping unit, and load the second-type grayscale signal RL 'to the remaining one red sub-pixel.
  • the manners of obtaining the first gray-scale signal and the second gray-scale signal can be obtained by looking up a table, and the table is preset.
  • the first gray-scale signal may be a high gray-scale signal relative to the second gray-scale signal, or a medium-low gray-scale signal relative to the second gray-scale signal, and the first gray-scale signal may also be relative to the second gray-scale signal Low-level signal of the first-order signal.
  • a first type of grayscale signal is loaded to a part of the same color sub-pixels in the pixel block according to the preset rule, and the remaining
  • the steps of loading the second-type gray-scale signal of the same-color sub-pixels of include:
  • the first grouping unit includes two adjacent unit pixels, and each There is no identical unit pixel in the first grouping unit.
  • the driving signal of the blue sub-pixel can use every two adjacent blue sub-pixels
  • a set of first-level grayscale signals and second-level grayscale signals corresponding to the average pixel signal of the pixels respectively replace the pixel signals B1, B2 originally loaded by the two adjacent blue sub-pixels.
  • the combination of the signal and the second-type grayscale signal can achieve the effect of improving the visual role deviation in the viewing angle, and the average brightness of the first-type grayscale signal and the second-type grayscale signal in the positive viewing angle can maintain the same as the original two.
  • the average brightness of the original independent blue sub-pixel signals B1 and B2 is presented.
  • the original two independent blue sub-pixel signals B1 and B2 may also be maintained.
  • the main color rendering judgment condition includes a blue color rendering condition. According to the color signal and the preset main color rendering judgment condition, a part of the same color component
  • the pixel loading the first type of gray scale signal, and the step of loading the second type of gray scale signal to the remaining same-color sub-pixels includes:
  • the color signal meets the blue color rendering condition, it means that the average color signal of the pixel block is biased towards blue.
  • the red sub-pixels of the block corresponding to FIG. 9 can be obtained. Every 4 adjacent second grouping units in the interval The first-type gray-scale signal and the second-type gray-scale signal corresponding to the average pixel signal of the red sub-pixel, and the first-type gray-scale signal (high-voltage gray-scale signal RH ') is loaded into 3 of the red sub-pixels, is Another red sub-pixel is loaded with a second type of gray scale signal (low voltage gray scale signal RL '). Similarly, for the green sub-pixels, the first-type gray-scale signal and the second-type gray-scale signal can also be obtained from FIG. 9, and the first-type gray-scale signal is loaded into three of the four green sub-pixels to The remaining one green sub-pixel is loaded with the second type of gray-scale signal.
  • the steps of acquiring the first-type grayscale signal and the second-type grayscale signal loaded to each second grouping unit include:
  • S50 Obtain the average pixel signal of each second grouping unit in the pixel block.
  • the second grouping unit includes four adjacent unit pixels, and there is no same unit pixel in each first grouping unit;
  • S51 Look up a table to obtain the first-type grayscale signal and the second-type grayscale signal corresponding to the average pixel signal of each second grouping unit.
  • the steps of acquiring the first-level grayscale signal and the second-level grayscale signal loaded into each first grouping unit include:
  • the first grouping unit includes two adjacent unit pixels, and there is no same unit pixel in each first grouping unit;
  • S53 Look up a table to obtain the first-type grayscale signal and the second-type grayscale signal corresponding to the average pixel signal of each first grouping unit.
  • the method before the step of obtaining the average pixel signal of each color sub-pixel in each unit pixel in the pixel block, the method further includes:
  • S10 Load a group of initial high gray level signals and initial low gray level signals into the same color sub-pixels in the first grouping unit of the pixel block, the first grouping unit includes two adjacent unit pixels, and each first grouping There are no identical unit pixels in the cell.
  • each two adjacent unit pixels are respectively loaded with an initial set of high grayscale signals and an initial low grayscale signal. Then determine whether the pixel block will have a graininess during display. If there is a graininess, you can obtain a set of the first type of grayscale signal and the second corresponding to the average pixel signal of every four adjacent subpixels of the same color Gray-scale-like signals, and load the first-type gray-scale signals and the second-type gray-scale signals for each unit pixel according to a preset rule.
  • a set of first-level gray-scale signals and second-level gray-scale signals corresponding to the average pixel signal of each two adjacent sub-pixels can be used to replace the original initial high-level gray-scale signal and the initial low-level signal Grayscale signal.
  • the original initial high gray level signal and the initial low gray level signal can be kept unchanged.
  • the initial high gray level signal and the initial low gray level signal may be obtained by looking up a table. It should be noted that the initial high-gray-scale signal and the initial low-gray-scale signal are loaded here, and are for the same-color sub-pixels in two adjacent unit pixels.
  • the color signal includes chroma and hue angle
  • the red color development conditions are:
  • H is chroma
  • C hue angle
  • C TL1 is a predefined minimum red hue threshold
  • C TH2 is a predefined maximum red hue threshold.
  • steps of the flowchart in FIGS. 5-13 are displayed sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless clearly stated in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in FIGS. 5-13 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. These sub-steps or stages The execution order of is not necessarily sequential, but may be executed in turn or alternately with at least a part of other steps or sub-steps or stages of other steps.
  • a pixel driving device as shown in FIG. 14, includes:
  • the average signal obtaining circuit 10 is used to obtain an average pixel signal of each color sub-pixel in each unit pixel in the pixel block.
  • the unit pixel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel;
  • the color signal obtaining circuit 20 is used to obtain the color signal of the pixel block according to the average pixel signal of each color sub-pixel;
  • the driving signal loading circuit 30 is used to load the first-type grayscale signal to a part of the same-color sub-pixels in the pixel block according to the preset rule according to the color signal and the preset main color judgment condition, and to load the remaining same-color sub-pixels
  • the second type of gray scale signal, the first type of gray scale signal is not equal to the corresponding second type of gray scale signal.
  • the definitions of pixel blocks, unit pixels, etc. are the same as those in the above method embodiments, and are not repeated here.
  • the average signal acquisition circuit 10 obtains the average pixel signal of each color sub-pixel in each unit pixel in the pixel block, and sends it to the color signal acquisition circuit 20. Then, the color signal acquisition circuit 20 obtains pixels based on the average pixel signal of each color sub-pixel For the color signal of the block, the driving signal loading circuit 30 loads the first type of grayscale signal to a part of the same color sub-pixels in the pixel block according to the preset rule according to the color signal and the preset main color judgment condition, and the remaining same color The sub-pixel is loaded with the second type of gray-scale signal.
  • Each circuit module in the above pixel driving device may be implemented in whole or in part by software, hardware, and a combination thereof.
  • the above modules may be embedded in the hardware or independent of the processor in the computer device, or may be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.
  • a computer device is provided.
  • the computer device may be a server, and its internal structure may be as shown in FIG. 15.
  • the computer device includes a processor, memory, network interface, and database connected by a system bus.
  • the processor of the computer device is used to provide computing and control capabilities.
  • the memory of the computer device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system, a computer program, and a database.
  • the internal memory provides an environment for the operating system and computer programs in the non-volatile storage medium.
  • the database of the computer device is used to store data such as the signal judgment interval, the first type gray scale signal and the second type gray scale signal.
  • the network interface of the computer device is used to communicate with external terminals through a network connection.
  • the computer program is executed by the processor to implement a pixel driving method.
  • FIG. 15 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied.
  • the specific computer device may It includes more or fewer components than shown in the figure, or some components are combined, or have a different component arrangement.
  • a computer device includes a memory and a processor.
  • the memory stores a computer program
  • the processor implements the following steps when the computer program is executed:
  • S20 Obtain an average pixel signal of each color sub-pixel in each unit pixel in the pixel block.
  • the unit pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • the computer device provided by the embodiment of the present application can determine the main color display of the pixel block during display according to the pixel signals of the sub-pixels of each pixel block during operation, and then send the pixel area to the pixel area according to the pre-stored preset rules
  • Each unit pixel of the block is loaded with the first-type grayscale signal and the second-type grayscale signal, thereby reducing the graininess of the pixel block during display and improving the display quality.
  • the processor in the computer device further executes the following steps when executing the computer-readable instructions:
  • the second grouping unit includes There are four adjacent unit pixels, and there is no same unit pixel in each second grouping unit.
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • red sub-pixels of each second grouping unit in the pixel block are loaded with the first-type gray-scale signal, and one red sub-pixel in the second grouping unit is loaded with the second-type gray-scale signal.
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two adjacent unit pixels, and each There is no identical unit pixel in the first grouping unit.
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the second grouping unit includes four adjacent unit pixels, and there is no difference in each first grouping unit Of unit pixels;
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the second grouping unit includes four adjacent unit pixels, and there is no difference in each first grouping unit Of unit pixels;
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two adjacent unit pixels, and each of the first grouping units No identical unit pixels;
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two adjacent unit pixels, and each of the first grouping units No identical unit pixels;
  • the processor in the computer device also executes the following steps when executing the computer-readable instructions:
  • the first grouping unit includes two adjacent unit pixels, and each of the first grouping units No identical unit pixels.
  • the color signal includes chroma and hue angle
  • the red color development conditions are:
  • H is chroma
  • C hue angle
  • C TL1 is a predefined minimum red hue threshold
  • C TH2 is a predefined maximum red hue threshold.
  • S20 Obtain an average pixel signal of each color sub-pixel in each unit pixel in the pixel block.
  • the unit pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory can include random access memory (RAM) or external cache memory.
  • RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
  • SRAM static RAM
  • DRAM dynamic RAM
  • SDRAM synchronous DRAM
  • DDRSDRAM double data rate SDRAM
  • ESDRAM enhanced SDRAM
  • SLDRAM synchronous chain (Synchlink) DRAM
  • SLDRAM synchronous chain (Synchlink) DRAM
  • Rambus direct RAM
  • DRAM direct memory bus dynamic RAM
  • RDRAM memory bus dynamic RAM

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Abstract

像素驱动方法：获得像素区块中各单位像素中的各色子像素的平均像素信号（S20），单位像素包括红色子像素、绿色子像素和蓝色子像素；根据各色子像素的平均像素信号，获得像素区块的色彩信号(S40)；根据色彩信号和预设的主显色判断条件，判断像素区块在显示时偏向的颜色，根据结果按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，向剩余的同色子像素加载第二类灰阶信号(S60)，第一类灰阶信号与对应的第二类灰阶信号不相等。

Description

像素驱动方法、像素驱动装置和计算机设备
本申请要求于2018年11月20日提交中国专利局，申请号为201811383608.1，申请名称为“像素驱动方法和像素驱动装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种像素驱动方法、像素驱动装置和计算机设备。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
目前，大尺寸显示面板多半采用VA(Vertical Alignment liquid crystal，垂直配向)型液晶技术或IPS(In-Plane Switching，平面转换)液晶技术，VA(Vertical Alignment liquid crystal，垂直配向)型液晶技术相较于IPS(In-Plane Switching，平面转换)液晶技术，生产效率高，成本低，但光学性质上相较于IPS(In-Plane Switching，平面转换)液晶技术存在较明显的光学性质缺陷，尤其是大尺寸面板在商业应用方面需要较大的视角呈现，但如附图1所示，采用VA(Vertical Alignment liquid crystal，垂直配向)型液晶技术进行显示驱动时，大视角亮度随信号快速饱和(如曲线2所示)，从而造成视角画质对比及色偏相较于正视的画质(如曲线1所示，正视角下亮度随信号变化情况)品质恶化严重。
目前，示例性技术所提供的像素驱动方法会因亮暗子像素相间造成画面整体有颗粒感。
申请内容
本申请的目的在于，提供一种像素驱动方法、像素驱动装置和计算机设备，以避免画面显示时有颗粒感，从而提高显示质量。
一种像素驱动方法，包括：
获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
根据各色子像素的平均像素信号，获得像素区块的色彩信号；
根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，第一类灰阶信号与对应的第二类灰阶信号不相等。
本申请实施例提供的像素驱动方法，通过获得像素区块中各单位像素中的各色子像素的平均像素信号，并根据各色子像素的平均像素信号和预设的主显色判断条件，判断该像素区块在显示时偏向的颜色，根据判断结果向各子像素加载第一类灰阶信号和第二类灰阶信号，控制该像素区块加载的高低灰阶电压的比例和亮度，改善像素区块显示时的颗粒感。
在其中一个实施例中，主显色判断条件包括红色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
若色彩信号符合红色显色条件，则向像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中的一个绿色子像素加载第二类灰阶信号，第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
在其中一个实施例中，主显色判断条件包括绿色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
若色彩信号符合绿色显色条件，则向像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
并且向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中的一个红色子像素加载第二类灰阶信号。
在其中一个实施例中，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
为像素区块中的各第一分组单元的的蓝色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中，主显色判断条件包括蓝色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
若色彩信号符合蓝色显色条件，则向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
在其中一个实施例中，在获得像素区块中各单位像素中的各色子像素的平均像素信号的步骤之前还包括：
向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中，色彩信号包括彩度和色调角，红色显色条件为：
0 0＜H≦45 0或315 0＜H≦360 0，且C TL1≦C≦C TH2
其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
一种像素驱动装置，包括：
平均信号获取电路元，用于获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
色彩信号获取单元，用于根据各色子像素的平均像素信号，获得像素区块的色彩信号；
驱动信号加载单元，用于根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，第一类灰阶信号与对应的第二类灰阶信号不相等。
一种计算机设备，包括存储器和处理器，存储器存储有计算机程序，其特征在于，处理器执行计算机程序时实现以下步骤：
获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
根据各色子像素的平均像素信号，获得像素区块的色彩信号；
根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，第一类灰阶信号与对应的第二类灰阶信号不相等。
在其中一个实施例中，处理器执行计算机可读指令时还执行以下步骤：
若色彩信号符合红色显色条件，则向像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中的一个绿色子像素加载第二类灰阶信号，第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
在其中一个实施例中，处理器执行计算机可读指令时还执行以下步骤：
若色彩信号符合绿色显色条件，则向像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
并且向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中的一个红色子像素加载第二类灰阶信号。
在其中一个实施例中，处理器执行计算机可读指令时还执行以下步骤：
为像素区块中的各第一分组单元的的蓝色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中，处理器执行计算机可读指令时还执行以下步骤：
若色彩信号符合蓝色显色条件，则向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
在其中一个实施例中，处理器执行计算机可读指令时还执行以下步骤：
向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中，色彩信号包括彩度和色调角，红色显色条件为：
0 0＜H≦45 0或315 0＜H≦360 0，且C TL1≦C≦C TH2
其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征和优点将从说明书、附图以及权利要求书变得明显。
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申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为采用VA型液晶技术进行显示驱动时，正视角和大视角下像素显示亮度随灰阶信号变化情况；
图2为对主次像素分别加载不同灰阶信号驱动时，正视角和大视角下主次像素显示亮度随灰阶信号变化情况；
图3为一个实施例中像素驱动方法的主次像素的像素电压分配示意图；
图4为一个实施例中主次像素分别加载的高低灰阶信号及平均像素信号之间的关系表；
图5为一个实施例中像素驱动方法的流程示意图；
图6为一个实施例中各平均像素信号对应的第一类灰阶信号和第二类灰阶信号关系表；
图7为一个实施例中根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号步骤的流程示意图；
图8为一个实施例中向各子像素加载灰阶信号的示意图；
图9为另一个实施例中各平均像素信号对应的第一类灰阶信号和第二类灰阶信号关系表；
图10为又一个实施例中向各子像素加载灰阶信号的示意图；
图11为一实施例中第一类灰阶信号和第二类灰阶信号的获取步骤示意图；
图12为又一实施例中第一类灰阶信号和第二类灰阶信号的获取步骤示意图；
图13为再一个实施例中像素驱动方法的流程示意图；
图14为一个实施例中像素驱动装置的结构示意图；
图15为一个实施例中计算机设备的内部结构图。
具体实施方式
为了使本申请的技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
需要说明的是，当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件并与之结合为一体，或者可能同时存在居中元件。本文所使用的术语“安装”、“一端”、“另一端”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在一个示例性技术中，通过将两两相邻的红色子像素(绿色子像素/蓝色子像素)分为主次像素，然后对主次像素加载不同的灰阶电压，即如图1所示，划分为主次像素并加载不同灰阶信号驱动时(曲线3为主像素亮度随信号变化情况，曲线4为次像素亮度随信号变化情况)，由主次像素组成的显示面板的侧视亮度随信号变化曲线(曲线5)较为接近正视亮度随信号变化曲线(曲线1)，如图2所示，以绿色子像素为例，藉由空间上设计主次像素并给予不同的驱动信号来解决视角色偏的缺陷。
参考附图3，藉由在空间上牺牲空间解析度，对于红色子像素，可以用一组高灰阶信号RH、低灰阶信号RL来代替原子像素R1、R2信号，该高灰阶信号与低灰阶信号的配合在视角上可以达成改善视角色偏的效果。正视角下，这一组高灰阶信号RH、低灰阶信号RL的平均亮度可以维持同原两个原独立子像素信号R1、R2的亮度平均值呈现。参考附图4说明，以8bit的显示器驱动为例，各子像素的灰阶信号为0、1、…、255，则上述两个原独立子像素信号R1、R2亦为0、1、…、255中的灰阶信号，R1、R2两个相邻同色子像素的平均信号Rave亦同样为0、1、…、255中的灰阶信号，两相邻子像素的平均信号Rave查表可以查找到该平均信号Rave对应的一组高低灰阶信号组RH、RL。如附图3，相邻两同色子像素分别以高、低灰阶信号驱动显示。但申请人在实施过程汇总，发现上述空间上高、低灰阶信号驱动各子像素的方式，可以改善视角色偏，但缺点为亮暗子画素相间，亮暗子的亮度差异大时，显示时易有颗粒感，显示品质无法保证。
基于此，有必要针对画面显示有颗粒感的问题，提供一种像素驱动方法、像素驱动装置及计算机设备和计算机可读存储介质。
一方面，如图5所示，本申请实施例提供了一种像素驱动方法，包括：
S20：获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红 色子像素、绿色子像素和蓝色子像素；
S40：根据各色子像素的平均像素信号，获得像素区块的色彩信号；
S60：根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，第一类灰阶信号与对应的第二类灰阶信号不相等。
像素区块可以是包括多个单位像素的区块，例如一个像素区块可以是包括n*m个单位像素的区块。单位像素包括红色子像素、绿色子像素和蓝色子像素。主显色判断条件是用于判断由各单位像素组成的像素区块在显示时偏向于红绿蓝中的哪个颜色。预设规则是用于指示调节各单位像素中的同色子像素加载的第一类灰阶信号和第二类灰阶信号的差值大小以及调节像素区块中加载第一类灰阶信号和第二类灰阶信号的子像素的比例，以减弱像素区块显示时的颗粒感的规则，是通过实验等经验预先设置好的。如图6所示，第一类灰阶信号和第二类灰阶信号对应设置，即每个第一类灰阶信号对应一个第二类灰阶信号，第一类灰阶信号的值与其对应的第二类灰阶信号的值不相等。可选的，各色子像素的平均信号各对应一组第一类灰阶信号和第二类灰阶信号。
由多色子像素构成的显示面板在显示时，由于加载的像素电压不同，对于各像素区块来说，显示时偏向的颜色也不同。偏向各颜色的程度不同，人眼对于各像素区块中各颜色子像素显示时由于高低灰阶信号差异造成的颗粒感的敏感程度也不同。所以，首先，获得像素区块中各单位像素中的各色子像素的平均像素信号，然后根据各色子像素的平均像素信号，获得像素区块的色彩信号，根据色彩信号和预设的主显色判断条件，判断该像素区块显示时偏向的颜色，然后根据偏向的颜色，按照预设规则向像素区块中的一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号。此处所说的一部分同色子像素和剩余的同色子像素是指同一种颜色的子像素。加载灰阶信号的规则针对的是单位像素中的同色子像素。
在其中一个实施例中，如图7所示，主显色判断条件包括红色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
S61：若色彩信号符合红色显色条件，则向像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中的一个绿色子像素加载第二类灰阶信号，第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
根据CIE(Commission Internationale de L'Eclairage，国际照明委员会)规范，在色座标系统下L(亮度)、C(纯度)、H(色相)为关于R、G、B三色空间坐标的函数，分别为L＝f1(R、G、B)，C＝f1(R、G、B)，H＝f1(R、G、B)。参考附图8，H为颜色代表，由0 0～360 0代表不同色相颜色呈现，定义0 0为红色，90 0为黄色，180 0为绿色，270 0为蓝色，C为色彩纯度，代表颜色得鲜艳程度，C的范围表示为0到100，100代表最色彩最为鲜艳，C的数值一定程度表现了LCD显示高低灰阶信号的呈现。所以通过获取红色子像素的像素信号、绿色子像素的像素信号和蓝色子像素的像素信号，可以得到相应的LCH值。
具体的，本实施例中，通过获取各色子像素的像素信号，得到像素区块的红色子像素的平均像素信号R、绿色子像素的平均像素信号G和蓝色子像素的平均信号B，根据获得的各色子像素的平均像素信号，可以得到像素区块对应的色彩信号中的亮度、彩度和色调角，若符合预设的红色显色条件，则说明该像素区块在显示时平均色彩信号偏向红色，因此对于该像素区块的多数红色子像素可对应附图6、图8，向该区间中各第一分组单元的2个相邻的红色子像素信号取平均，查表得到平均像素信号对应的第一类、第二类灰阶信 号来分别驱动这两个相邻的红色子像素。对于绿色子像素可对应附图8、图9，向该区间第二分组单元的4个相邻绿色子像素信号取平均，得到平均像素信号对应的第一类灰阶信号GH’与1个第二类灰阶信号GL’，然后对第二分组单元中的三个绿色子像素加载第一类灰阶信号GH’，并向剩余的一个绿色子像素加载第二类灰阶信号GL’。需要说明的，第一灰阶信号和第二灰阶信号的获取方式可以通过查表获得，表格是预先设定好的。第一灰阶信号可以是相对于第二灰阶信号的高灰阶信号，也可以是相对于第二灰阶信号的中低灰阶信号，第一灰阶信号还可以是相对于第二灰阶信号的低灰阶信号。
在其中一个实施例中，如图7所示，主显色判断条件包括绿色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
S62：若色彩信号符合绿色显色条件，则向像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
并且向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中的一个红色子像素加载第二类灰阶信号。
同理，若色彩信号符合绿色显色条件，则说明因此对于该像素区块的多数绿色子像素可对应附图6、图10，向该区间中各第一分组单元的2个相邻的绿色子像素信号取平均，查表得到平均像素信号对应的第一类灰阶信号GH、第二类灰阶信号GL来分别驱动这两个相邻的绿色子像素。对于红色子像素可对应附图9、图10，向该区间第二分组单元的4个相邻红色子像素信号取平均，得到平均像素信号对应的第一类灰阶信号RH’与1个第二类灰阶信号RL’，然后对第二分组单元中的三个红色子像素加载第一类灰阶信号RH’，并向剩余的一个红色子像素加载第二类灰阶信号RL’。需要说明的，第一灰阶信号和第二灰阶信号的获取方式可以通过查表获得，表格是预先设定好的。第一灰阶信号可以是相对于第二灰阶信号的高灰阶信号，也可以是相对于第二灰阶信号的中低灰阶信号，第一灰阶信号还可以是相对于第二灰阶信号的低灰阶信号。
在其中一个实施例中，如图7所示，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
S63：为像素区块中的各第一分组单元的的蓝色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
由于人眼对蓝色色彩亮度变化的敏感度较低，肉眼对于蓝色子像素亮暗亮度差异敏感度不高，故对于蓝色子像素的驱动信号，可以采用每两个相邻蓝色子像素的平均像素信号对应的一组第一类灰阶信号和第二类灰阶信号来分别代替这两个相邻的蓝色子像素原来加载的像素信号B1、B2，该第一类灰阶信号和第二类灰阶信号的配合在视角上可以达成改善视角色偏的效果，且正视角下这一组第一类灰阶信号、第二类灰阶信号的平均亮度可以维持同原两个原独立的蓝色子像素信号B1、B2的亮度平均值呈现。可选的，对于蓝色子像素，也可以维持原两个独立的蓝色子像素信号B1和B2。
在其中一个实施例中，如图7所示，主显色判断条件包括蓝色显色条件，根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
S64：若色彩信号对应的主显色判断条件为蓝色显色条件，则向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
若色彩信号符合蓝色显色条件，则说明该像素区块平均色彩信号偏向蓝色，则对于该区块多数红色子像素可对应附图9获得该区间各第二分组单元每4个相邻红色子像素的平均像素信号所对应的第一类灰阶信号和第二类灰阶信号，并向其中3个红色子像素加载第一类灰阶信号(高电压灰阶信号RH’)，为另一个红色子像素加载第二类灰阶信号(低电压灰阶信号RL’)。同理，对于绿色子像素，也可以对附图9获取第一类灰阶信号和第二类灰阶信号，并向四个绿色子像素中的其中三个加载第一类灰阶信号，向剩余的一个绿色子像素加载第二类灰阶信号。
在其中一个实施例中，如图11所示，向各第二分组单元加载的第一类灰阶信号和第二类灰阶信号的获取步骤包括：
S50：获取像素区块中各第二分组单元的平均像素信号，第二分组单元包括四个相邻单位像素，且各第一分组单元中无相同的单位像素；
S51：查表获得各第二分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中，如图12所示，向各第一分组单元加载的第一类灰阶信号和第二类灰阶信号的获取步骤包括：
S52：获取像素区块中各第一分组单元的平均像素信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
S53：查表获得各第一分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中，如图13所示，在获得像素区块中各单位像素中的各色子像素的平均像素信号的步骤之前还包括：
S10：向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
为了更好的保证像素区块显示时的大视角显示效果，在初始化时，为每两个相邻的单位像素分别加载一组初始高灰阶信号和初始低灰阶信号。再判断该像素区块在显示时是否会有颗粒感，若有颗粒感，则可以获取每四个相邻的同色子像素的平均像素信号所对应的一组第一类灰阶信号和第二类灰阶信号，并按照预设规则为各单位像素加载该第一类灰阶信号和第二类灰阶信号。若判定无颗粒感，则可以采用每两个相邻子像素的平均像素信号所对应的一组第一类灰阶信号和第二类灰阶信号，替代原来的初始高灰阶信号和初始低灰阶信号。或者在判定无颗粒感时，可以保持原来的初始高灰阶信号和初始低灰阶信号不变。其中，初始高灰阶信号和初始低灰阶信号可以是通过查表得到的。需要说明的是，此处加载初始高灰阶信号和初始低灰阶信号，均针对于相邻两单位像素中的同色子像素而言。
在其中一个实施例中，色彩信号包括彩度和色调角，红色显色条件为：
0 0＜H≦45 0或315 0＜H≦360 0，且C TL1≦C≦C TH2
其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
应该理解的是，虽然图5-13中的流程图的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图5-13中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些子步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
一种像素驱动装置，如图14所示，包括：
平均信号获取电路10，用于获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
色彩信号获取电路20，用于根据各色子像素的平均像素信号，获得像素区块的色彩信号；
驱动信号加载电路30，用于根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，第一类灰阶信号与对应的第二类灰阶信号不相等。
像素区块、单位像素等释义与上述方法实施例中相同，在此不做赘述。平均信号获取电路10获得像素区块中各单位像素中的各色子像素的平均像素信号，并发送至色彩信号获取电路20，然后，色彩信号获取电路20根据各色子像素的平均像素信号，获得像素区块的色彩信号，驱动信号加载电路30根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号。
关于像素驱动装置的具体限定可以参见上文中对于像素驱动方法的限定，在此不再赘述。上述像素驱动装置中的各个电路模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块对应的操作。
在一个实施例中，提供了一种计算机设备，该计算机设备可以是服务器，其内部结构图可以如图15所示。该计算机设备包括通过系统总线连接的处理器、存储器、网络接口和数据库。该计算机设备的处理器用于提供计算和控制能力。该计算机设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统、计算机程序和数据库。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机设备的数据库用于存储信号判断区间、第一类灰阶信号和第二类灰阶信号等数据。该计算机设备的网络接口用于与外部的终端通过网络连接通信。该计算机程序被处理器执行时以实现一种像素驱动方法。
本领域技术人员可以理解，图15中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
一种计算机设备，包括存储器和处理器，存储器存储有计算机程序，处理器执行计算机程序时实现以下步骤：
S20：获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
S40：根据各色子像素的平均像素信号，获得像素区块的色彩信号；
S60：根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，第一类灰阶信号与对应的第二类灰阶信号不相等。
本申请实施例提供的计算机设备，在运行时，可以根据各像素区块的子像素的像素信号，判断该像素区块显示时的主显色，然后按照预先存储的预设规则向该像素区块的各单位像素加载第一类灰阶信号和第二类灰阶信号，从而减小该像素区块在显示时的颗粒感，提升显示品质。
在其中一个实施例中计算机设备中的处理器执行所述计算机可读指令时还执行以下步骤：
S61：若所述色彩信号符合所述红色显色条件，则向所述像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中的一个绿色子像素加载第二类灰阶信号，第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
S62：若色彩信号符合绿色显色条件，则向像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
并且向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中的一个红色子像素加载第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
S63：为像素区块中的各第一分组单元的的蓝色子像素分别加载第一类灰阶信号和第二类灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
S64：若色彩信号符合蓝色显色条件，则向像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
并且向像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
若判定像素区块的像素信号满足第一条件，则获取像素区块中各第二分组单元的平均像素信号，第二分组单元包括四个相邻单位像素，且各第一分组单元中无相同的单位像素；
查表获得各第二分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
若判定像素区块的像素信号满足第一条件，则获取像素区块中各第二分组单元的平均像素信号，第二分组单元包括四个相邻单位像素，且各第一分组单元中无相同的单位像素；
查表获得各第二分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
若判定像素区块的像素信号不满足第一条件，则获取像素区块中各第一分组单元的平均像素信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
查表获得各第一分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
若判定像素区块的像素信号不满足第一条件，则获取像素区块中各第一分组单元的平均像素信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
查表获得各第一分组单元的平均像素信号对应的第一类灰阶信号和第二类灰阶信号。
在其中一个实施例中计算机设备中的处理器执行计算机可读指令时还执行以下步骤：
向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
在其中一个实施例中，色彩信号包括彩度和色调角，红色显色条件为：
0 0＜H≦45 0或315 0＜H≦360 0，且C TL1≦C≦C TH2
其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现 以下步骤：
S20：获得像素区块中各单位像素中的各色子像素的平均像素信号，单位像素包括红色子像素、绿色子像素和蓝色子像素；
S40：根据各色子像素的平均像素信号，获得像素区块的色彩信号；
S60：根据色彩信号和预设的主显色判断条件，按照预设规则向像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，第一类灰阶信号与对应的第二类灰阶信号不相等。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种像素驱动方法，包括：
    获得像素区块中各单位像素中的各色子像素的平均像素信号，所述单位像素包括红色子像素、绿色子像素和蓝色子像素；
    根据所述各色子像素的平均像素信号，获得所述像素区块的色彩信号；
    根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，所述第一类灰阶信号与对应的所述第二类灰阶信号不相等。
  2. 根据权利要求1所述的像素驱动方法，其中，所述主显色判断条件包括红色显色条件，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    若所述色彩信号符合所述红色显色条件，则向所述像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
    并且向所述像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向所述第二分组单元中的一个绿色子像素加载第二类灰阶信号，所述第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
  3. 根据权利要求2所述的像素驱动方法，其中，所述主显色判断条件包括绿色显色条件，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    若所述色彩信号符合所述绿色显色条件，则向所述像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
    并且向所述像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向所述第二分组单元中的一个红色子像素加载第二类灰阶信号。
  4. 根据权利要求2所述的像素驱动方法，其中，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    为像素区块中的各第一分组单元的的蓝色子像素分别加载所述第一类灰阶信号和所述第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  5. 根据权利要求3所述的像素驱动方法，其中，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    为像素区块中的各第一分组单元的的蓝色子像素分别加载所述第一类灰阶信号和所述第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  6. 根据权利要求2所述的像素驱动方法，其中，所述主显色判断条件包括蓝色显色条件，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    若所述色彩信号符合所述蓝色显色条件，则向所述像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个红色子像素加载第 二类灰阶信号；
    并且向所述像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
  7. 根据权利要求3所述的像素驱动方法，其中，所述主显色判断条件包括蓝色显色条件，根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号的步骤包括：
    若所述色彩信号符合所述蓝色显色条件，则向所述像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
    并且向所述像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
  8. 根据权利要求1所述的像素驱动方法，其中，在获得像素区块中各单位像素中的各色子像素的平均像素信号的步骤之前还包括：
    向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  9. 根据权利要求2所述的像素驱动方法，其中，所述色彩信号包括彩度和色调角，所述红色显色条件为：
    0°＜H≦45°或315°＜H≦360°，且C TL1≦C≦C TH2
    其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
  10. 一种像素驱动装置，包括：
    平均信号获取电路，用于获得像素区块中各单位像素中的各色子像素的平均像素信号，所述单位像素包括红色子像素、绿色子像素和蓝色子像素；
    色彩信号获取电路，用于根据所述各色子像素的平均像素信号，获得所述像素区块的色彩信号；
    驱动信号加载电路，用于根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，所述第一类灰阶信号与对应的所述第二类灰阶信号不相等。
  11. 一种计算机设备，包括存储器及一个或多个处理器，所述存储器中储存有计算机可读指令，所述计算机可读指令被所述一个或多个处理器执行时，使得所述一个或多个处理器执行以下步骤：
    获得像素区块中各单位像素中的各色子像素的平均像素信号，所述单位像素包括红色子像素、绿色子像素和蓝色子像素；
    根据所述各色子像素的平均像素信号，获得所述像素区块的色彩信号；
    根据所述色彩信号和预设的主显色判断条件，按照预设规则向所述像素区块中一部分同色子像素加载第一类灰阶信号，并且向剩余的同色子像素加载第二类灰阶信号，其中，所述第一类灰阶信号与对应的所述第二类灰阶信号不相等。
  12. 根据权利要求11所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    若所述色彩信号符合所述红色显色条件，则向所述像素区块中各第一分组单元的两个相邻红色子像素分别加载第一类灰阶信号和第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素；
    并且向所述像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向 所述第二分组单元中的一个绿色子像素加载第二类灰阶信号，所述第二分组单元包括四个相邻的单位像素，且各第二分组单元中无相同的单位像素。
  13. 根据权利要求12所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    若所述色彩信号符合所述绿色显色条件，则向所述像素区块中各第一分组单元的两个相邻绿色子像素分别加载第一类灰阶信号和第二类灰阶信号；
    并且向所述像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向所述第二分组单元中的一个红色子像素加载第二类灰阶信号。
  14. 根据权利要求12所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    为像素区块中的各第一分组单元的的蓝色子像素分别加载所述第一类灰阶信号和所述第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  15. 根据权利要求13所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    为像素区块中的各第一分组单元的的蓝色子像素分别加载所述第一类灰阶信号和所述第二类灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  16. 根据权利要求12所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    若所述色彩信号符合所述蓝色显色条件，则向所述像素区块中各第二分组单元的三个红色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个红色子像素加载第二类灰阶信号；
    并且向所述像素区块中各第二分组单元的三个绿色子像素加载第一类灰阶信号，且向所述第二分组单元中剩余的一个绿色子像素加载第二类灰阶信号。
  17. 根据权利要求11所述的计算机设备，其中，所述处理器执行所述计算机可读指令时还执行以下步骤：
    向像素区块的第一分组单元中的同色子像素分别加载一组初始高灰阶信号和初始低灰阶信号，所述第一分组单元包括两个相邻的单位像素，且各第一分组单元中无相同的单位像素。
  18. 根据权利要求12所述的计算机设备，其中，所述色彩信号包括彩度和色调角，所述红色显色条件为：
    0°＜H≦45°或315°＜H≦360°，且C TL1≦C≦C TH2
    其中，H为彩度，C为色调角，C TL1为预先定义的最低红色色相阈值，C TH2为预先定义的最高红色色相阈值。
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