WO2018058853A1 - 一种液晶显示器及其补偿数据的存储方法、数据补偿装置 - Google Patents

一种液晶显示器及其补偿数据的存储方法、数据补偿装置 Download PDF

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Publication number
WO2018058853A1
WO2018058853A1 PCT/CN2017/070199 CN2017070199W WO2018058853A1 WO 2018058853 A1 WO2018058853 A1 WO 2018058853A1 CN 2017070199 W CN2017070199 W CN 2017070199W WO 2018058853 A1 WO2018058853 A1 WO 2018058853A1
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Prior art keywords
data
offset value
compensation data
range
target
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English (en)
French (fr)
Inventor
张华�
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US15/324,690 priority Critical patent/US10223979B2/en
Publication of WO2018058853A1 publication Critical patent/WO2018058853A1/zh
Anticipated expiration legal-status Critical
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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
    • G09G3/3406—Control of illumination source
    • 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
    • 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
    • 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
    • G09G2320/0271—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
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • 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
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a liquid crystal display and a method and a data compensation device for compensating data.
  • the grayscale picture of the pixels on the panel is uneven and bright (commonly known as mura), which can be compensated and repaired by the mura compensation data stored in the flash memory.
  • the mura compensation data is calculated by the mura patching system. : The camera captures the mura form of 3 to 5 grayscale images (white images of different brightness). By comparing the brightness of the center position of the panel, the mura compensation data required for the surrounding area is calculated, and the area brighter than the center position is in the current gray.
  • the Control Register reads the mura compensation data from the flash and displays the brightness consistency screen after the mura patching with the input signal (grayscale data).
  • the technical problem to be solved by the present invention is to provide a liquid crystal display and a compensation method thereof, and a data compensation device, which can accurately perform data compensation, effectively reduce the mura of the liquid crystal display, and can increase the capacity of the flash and reduce the cost. .
  • the present invention adopts a technical solution to provide a liquid crystal display, wherein the liquid crystal display includes a display panel and a backlight; wherein the liquid crystal display further includes a driver for: acquiring a target display area Target compensation data; when a ⁇ A and b ⁇ B, it is determined that the offset value is 0, and when a ⁇ A or b>B, it is determined that the offset value is a boundary between Aa and Bb a value; wherein [A, B] represents a storable data range of the preset storage space, [a, b] represents a data range of the target compensation data; and the target compensation data is performed with the offset value a summation operation to obtain storage compensation data in accordance with the range of storable data; the liquid crystal display further comprising a memory for storing the offset value and the storage compensation data; the driver is further configured to acquire a data signal And the storage compensation data and the offset value in the memory, using the offset value to restore the storage compensation data to target compensation data, and
  • the driver is further configured to: when a>A, b>B, and (aA)>(bB), determine that the offset value ranges from [Aa, Bb]; in a>A, b >B, and (aA) ⁇ (bB), the offset value is determined to be Aa.
  • the driver is further configured to: when a ⁇ A, b ⁇ B, and (Aa) ⁇ (Bb), determine that the offset value ranges from [Aa, Bb]; at a ⁇ A, b When ⁇ B, and (Aa)>(Bb), it is determined that the offset value is Bb.
  • the driver is further configured to divide the display area into a plurality of sub-display areas when a ⁇ A or b>B, and respectively set a data range of the compensation data of each sub-display area and a preset storage space.
  • the storage data ranges are compared to determine each sub-display area offset value; wherein [A, B] represents a storable data range of the preset storage space, [a, b] represents a data range of the target compensation data Correcting the compensation data of each sub-display area with the offset value of each sub-area respectively to obtain storage compensation data conforming to the storable data range; the memory is further configured to: store the partial polarization of each sub-display area separately Move and store compensation data.
  • the method further includes: the driver is further configured to read the offset value and the storage compensation data in the memory when the liquid crystal display is in operation, and store the compensation data and the offset value Performing a difference operation to obtain the target compensation data, thereby compensating the data signal of the display area by using the target compensation data.
  • another technical solution adopted by the present invention is to provide a method for storing compensation data of a liquid crystal display, the method comprising: acquiring target compensation data of a display area; and setting a data range of the target compensation data with a preset The storable data range of the storage space is compared to determine an offset value; the target compensation data is corrected using an offset value to obtain storage compensation data that conforms to the storable data range; the offset value is stored and the compensation data is stored.
  • the data range of the target compensation data is compared with the storable data range of the preset storage space to determine the offset value, including: if a ⁇ A and b ⁇ B, determining the offset value is 0; if a ⁇ A or b>B, it is determined that the offset value is a value between Aa and Bb; wherein [A, B] represents a storable data range of the preset storage space, and [a, b] represents the target compensation data.
  • the range of data includes: if a ⁇ A and b ⁇ B, determining the offset value is 0; if a ⁇ A or b>B, it is determined that the offset value is a value between Aa and Bb; wherein [A, B] represents a storable data range of the preset storage space, and [a, b] represents the target compensation data.
  • the offset value is a value between Aa and Bb, specifically including: if a>A, b>B, and (aA)>(bB), then The offset value is determined to be [Aa, Bb]; if a>A, b>B, and (aA) ⁇ (bB), the offset value is determined to be Aa.
  • the offset value is a value between Aa and Bb, specifically including: if a ⁇ A, b ⁇ B, and (Aa) ⁇ (Bb), then It is determined that the offset value ranges from [Aa, Bb]; if a ⁇ A, b ⁇ B, and (Aa) > (Bb), the offset value is determined to be Bb.
  • the data range of the target compensation data is compared with the storable data range of the preset storage space to determine an offset value, including: if a ⁇ A or b>B, dividing the display area into multiple sub-display areas, Comparing the data ranges of the compensation data of each sub-display area with the storable data ranges of the preset storage space to determine each sub-display area offset value; wherein [A, B] represents the storable storage of the preset storage space
  • the data range, [a, b] represents the data range of the target compensation data; the offset value is used to correct the target compensation data to obtain the storage compensation data in accordance with the storable data range, including: using the offset value of each sub-region separately
  • the compensation data of each sub-display area is corrected to obtain storage compensation data conforming to the storable data range; storing the offset value and storing the compensation data includes: separately storing the offset value of each sub-display area and storing the compensation data.
  • the offset compensation value is used to correct the target
  • the method further includes: when the liquid crystal display is working, reading the stored offset value and storing the compensation data, and performing the difference calculation between the stored compensation data and the offset value to obtain the target compensation data, thereby using the target compensation data to display the display area.
  • the data signal is compensated.
  • a data compensation device for a liquid crystal display, the device comprising: a processor for acquiring target compensation data of a target display area; and data for the target compensation data The range is compared with a storable data range of the preset storage space to determine an offset value; the offset value is used to correct the target compensation data to obtain storage compensation data that conforms to the storable data range; and the memory is used to store the offset The value and the stored compensation data; the processor is further configured to acquire the data signal and the stored compensation data and the offset value in the memory, use the offset value to restore the stored compensation data to the target compensation data, and compensate the data signal by using the target compensation data.
  • the processor is specifically configured to: when a ⁇ A and b ⁇ B, determine an offset value of 0; and when a ⁇ A or b>B, determine that the offset value is a boundary between Aa and Bb. Value; where [A, B] represents the storable data range of the preset storage space, and [a, b] represents the data range of the target compensation data.
  • the processor is further configured to: when a>A, b>B, and (aA)>(bB), determine that the offset value ranges from [Aa, Bb]; in a>A, b>B, And (aA) ⁇ (bB), the offset value is determined to be Aa.
  • the processor is further configured to: when a ⁇ A, b ⁇ B, and (Aa) ⁇ (Bb), determine that the offset value ranges from [Aa, Bb]; in a ⁇ A, b ⁇ B, And (Aa)>(Bb), the offset value is determined to be Bb.
  • the processor is further configured to: when a ⁇ A or b>B, divide the display area into a plurality of sub-display areas, and respectively set the data range of the compensation data of each sub-display area and the storable data range of the preset storage space Performing a comparison to determine each sub-display area offset value; wherein [A, B] represents a storable data range of the preset storage space, [a, b] represents a data range of the target compensation data; The offset value is corrected for the compensation data of each sub-display area to obtain storage compensation data conforming to the storable data range; the offset value of each sub-display area and the storage compensation data are separately stored.
  • the processor is further configured to: sum the target compensation data and the offset value to obtain the storage compensation data that meets the range of the storable data.
  • the processor is further configured to: when the liquid crystal display is working, read the stored offset value and store the compensation data, perform a difference calculation between the stored compensation data and the offset value, to obtain the target compensation data, thereby adopting the target compensation data. Compensate the data signal of the display area.
  • the method for storing compensation data of the liquid crystal display of the present invention comprises: acquiring target compensation data of the display area; and setting the data range of the target compensation data with the preset storage space The stored data ranges are compared to determine an offset value; the target compensation data is corrected using an offset value to obtain storage compensation data that conforms to the storable data range; the offset value is stored and the compensation data is stored.
  • the target compensation data range exceeds the storable data range of the preset storage space, the target compensation data can be accurately stored, and accurate data compensation can be performed, and the mura of the liquid crystal display can be effectively reduced without increasing Flash capacity, reducing costs.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention
  • FIG. 2 is a schematic diagram of a data signal and a compensation signal of a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention
  • FIG. 3 is a schematic diagram of target compensation data of a first embodiment in a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention
  • FIG. 4 is a schematic diagram of target compensation data of a second embodiment of the first embodiment of the method for storing compensation data of the liquid crystal display of the present invention
  • FIG. 5 is a schematic diagram of target compensation data of a third embodiment in a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention
  • FIG. 6 is a schematic diagram of target compensation data of a fourth embodiment in a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention
  • FIG. 7 is a schematic flow chart of a second embodiment of a method for storing compensation data of a liquid crystal display according to the present invention.
  • FIG. 8 is a schematic diagram of target compensation data of a second embodiment of a method for storing compensation data of a liquid crystal display according to the present invention.
  • FIG. 9 is a schematic structural view of an embodiment of a data compensation device for a liquid crystal display according to the present invention.
  • Figure 10 is a schematic view showing the structure of an embodiment of a liquid crystal display of the present invention.
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for storing compensation data of a liquid crystal display according to the present invention.
  • the method includes:
  • the target compensation data is the mura compensation data of the display area.
  • the display area mura compensation data is calculated by the mura patching system: the camera captures the mura form of 3 to 5 grayscale images (white images of different brightness), and calculates the mura compensation required for the surrounding area by comparing the brightness of the center position of the panel.
  • the Control Register reads the mura compensation data from the flash and displays the brightness consistency screen after the mura patching with the input signal (grayscale data).
  • the horizontal left side represents the display area (where A, B, and C represent adjacent three pixels), and the ordinate represents the gray scale value.
  • B pixel is the middle pixel, its gray level value is 20, and the gray level value of the A pixel is too high, and the gray level value of the C pixel is too low.
  • Curve 1 can be compensated by curve 2 (compensation data curve) to obtain a data signal with a grayscale value of 20.
  • the compensation data is stored in the flash. Due to the limited capacity of the flash, the range of data stored therein is also limited. When the data range of the compensation data is large, it cannot be directly stored.
  • the mura compensation data in Flash is generally stored in hexadecimal.
  • a hexadecimal data consists of 4 bits.
  • F (15 in hexadecimal) consists of 4 binary ones (ie 1111)
  • the data range of the target compensation data is within the storable data range of the preset storage space, and the offset value is determined to be 0 without offset correction. That is, the target compensation data can be directly stored.
  • a ⁇ A or b>B it indicates that the data range of the target compensation data has at least one end point exceeding the storable data range, and the offset correction is needed, and the offset value is determined to be between Aa and Bb. a value.
  • the target compensation data is compared with the storable data range of the preset space, and the target compensation is performed. If the lower limit of the data is more than the target compensation data upper limit, the offset value is determined to be [Aa, Bb], that is, the target compensation data can be corrected to the lower limit just to A or the upper limit just to B and its Any value between.
  • the target compensation data is compared with the storable data range of the preset space, and the target compensation is performed.
  • the lower limit of the data is less than the target compensation data upper limit. Even if the target compensation data is offset to the lower limit of the storable data range of the preset storage space, the upper limit of the target compensation data is still beyond the preset space.
  • the data range is stored. At this time, it can be determined that the offset value ranges from Aa, that is, the target compensation data can be corrected to the lower limit just to A, so that the target compensation data is within the storable data range of the preset space as much as possible. .
  • the target compensation data is compared with the storable data range of the preset space, and the target compensation is performed. If the upper limit of the data is more than the target compensation data lower limit, the offset value is determined to be [Aa, Bb], that is, the target compensation data can be corrected to the lower limit just to A or the upper limit just to B and its Any value between.
  • the target compensation data is compared with the storable data range of the preset space, and the target compensation is performed.
  • the upper limit of the data is less than the target compensation data lower limit. Even if the target compensation data is offset to the upper limit of the storable data range of the preset storage space, the lower limit of the target compensation data is still more than the preset space.
  • the data range at this time, it can be determined that the offset value ranges from Bb, that is, the target compensation data can be corrected to the upper limit just to B, so that the target compensation data is as much as possible within the storable data range of the preset space.
  • the offset value that we set is always the endpoint value of the storable data range of the preset space.
  • the endpoint value of the target compensation data that is, the set offset value may be a positive number or a negative number.
  • the target compensation data and the offset value are summed to obtain the storage compensation data that conforms to the storable data range. That is, when the offset value is positive, the summation moves the target compensation data in the upper limit direction, and when the offset value is negative, the summation moves the target compensation data in the lower limit direction.
  • the stored offset value and the stored compensation data are read, and the stored compensation data and the offset value are subjected to a difference operation to obtain target compensation data, thereby using the target compensation data to the data signal of the display area. Make compensation.
  • the offset value may also be set to the opposite of the offset value in the above embodiment, and the difference is obtained when the target compensation data is corrected, and is stored when the data is compensated. The compensation data and the offset value are summed.
  • the offset value may be set to the absolute value of the offset value in the above embodiment, and when the target compensation data is corrected, according to the direction of the offset, the corresponding sum or The way to ask for difference.
  • the offset value obtained above and the corrected storage compensation data are stored in the flash.
  • the compensation data compensates the data signal.
  • the method for storing compensation data of the liquid crystal display of the present embodiment includes: acquiring target compensation data of the display area; comparing the data range of the target compensation data with the storable data range of the preset storage space to determine Offset value; the target compensation data is corrected by using an offset value to obtain storage compensation data that conforms to the storable data range; the offset value is stored and the compensation data is stored.
  • the target compensation data range exceeds the storable data range of the preset storage space, the target compensation data can be accurately stored, and accurate data compensation can be performed, and the mura of the liquid crystal display can be effectively reduced without increasing Flash capacity, reducing costs.
  • FIG. 7 is a schematic flowchart diagram of a second embodiment of a method for storing compensation data of a liquid crystal display according to the present invention, the method comprising:
  • the display area is divided into a plurality of sub-display areas, and the data range of the compensation data of each sub-display area is respectively compared with the storable data range of the preset storage space to determine each The sub display area offset value.
  • [A, B] represents the storable data range of the preset storage space
  • [a, b] represents the data range of the target compensation data
  • the target compensation data is compared with the storable data range of the preset space, and the upper limit and the lower limit of the target compensation data exceed the storage space.
  • the storable data range is divided into two sub-areas according to the broken line in FIG. 8 (the maximum data value of the first sub-area is b1, and the minimum data value of the second sub-area is a1).
  • S74 respectively store the offset value of each sub-display area and store the compensation data.
  • S73 and S74 are similar to the above S13 and S14, and will not be described again here.
  • FIG. 9 is a schematic structural diagram of an embodiment of a data compensation device for a liquid crystal display according to the present invention.
  • the data compensation device includes:
  • the processor 91 is configured to acquire target compensation data of the target display area, compare the data range of the target compensation data with a storable data range of the preset storage space to determine an offset value, and perform offset data on the target compensation data. Corrected to get storage compensation data that fits the range of storable data.
  • the memory 92 is configured to store the offset value and store the compensation data.
  • the processor 91 is further configured to acquire the data signal and the stored compensation data and the offset value in the memory, restore the stored compensation data to the target compensation data by using the offset value, and compensate the data signal by using the target compensation data.
  • the processor 91 and the memory 92 can be connected by a bus, wherein the processor 91 can be a processing chip or a TCON (Timer) Control Register), TCON is also called logic board, screen driver board, center board, and memory 92 can be flash.
  • TCON Timer Control Register
  • the processor 92 is specifically configured to: when a ⁇ A and b ⁇ B, determine an offset value of 0; and if a ⁇ A or b>B, determine an offset value.
  • the processor 92 is further configured to divide the display area into multiple sub-display areas when a ⁇ A or b>B, and store the data range of the compensation data of each sub-display area separately from the preset storage space. The data ranges are compared to determine the offset value for each sub-display area.
  • FIG. 10 is a schematic structural diagram of an embodiment of a liquid crystal display according to the present invention.
  • the liquid crystal display includes a display panel 10 and a backlight 20.
  • the liquid crystal display further includes a driver 30 for acquiring target compensation data of the target display area; comparing the data range of the target compensation data with the storable data range of the preset storage space to determine an offset value; using an offset value The target compensation data is corrected to obtain storage compensation data that conforms to the range of storable data.
  • the drive 30 can be a TCON, also called a logic board, a screen drive board or a center control board.
  • the liquid crystal display further includes a memory 40 for storing the offset value and storing the compensation data.
  • the memory 40 can be a flash chip of a liquid crystal display.
  • the driver 30 is further configured to acquire the data signal and the storage compensation data and the offset value in the memory, use the offset value to restore the storage compensation data to the target compensation data, and compensate the data signal with the target compensation data.
  • the driver 30 is specifically configured to: when a ⁇ A and b ⁇ B, determine an offset value of 0; and if a ⁇ A or b>B, determine an offset value A value between Aa and Bb; wherein [A, B] represents a storable data range of the preset storage space, and [a, b] represents a data range of the target compensation data.
  • the driver 30 is further configured to divide the display area into a plurality of sub-display areas when a ⁇ A or b>B, and respectively set the data range of the compensation data of each sub-display area and the storable data of the preset storage space. The ranges are compared to determine the offset value for each sub-display area.

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Abstract

一种液晶显示器及其补偿数据的存储方法、数据补偿装置，补偿数据的存储方法包括：获取显示区域的目标补偿数据（S11）；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值（Δ）（S12）；采用偏移值（Δ）对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据（S13）；存储偏移值（Δ）和存储补偿数据（S14）。既能进行精确的数据补偿，有效降低液晶显示器的mura，又能不增加flash的容量，降低成本。

Description

一种液晶显示器及其补偿数据的存储方法、数据补偿装置
【技术领域】
本发明涉及显示技术领域，特别是涉及一种液晶显示器及其补偿数据的存储方法、数据补偿装置。
【背景技术】
LCD panel（液晶液晶显示器）上的各个像素的灰阶画面亮暗不均匀异常（俗称mura），可以由flash（闪存）中存储的mura补偿数据进行补偿修复，mura补偿数据由mura修补系统计算得出：相机拍摄3~5个灰阶画面（不同亮度的纯白画面）的mura形态，通过对比panel中心位置的亮度，计算出四周区域需要的mura补偿数据，比中心位置亮的区域，在当前灰阶下降低一定的灰阶值（在flash中存储相应的负值），变暗；比中心位置暗的区域，在当前灰阶下增加一定的灰阶值（在flash中存储相应的正值），变亮；再由数据烧录器将计算出的补偿数据烧录存储在flash中，panel工作时TCON（Timer Control Register）会从flash中读取mura补偿数据，与输入信号（灰阶数据）运算后显示出mura修补之后的亮度一致画面。
在现有技术中，由于不同像素点的灰阶数据变化差异，导致了mura补偿数据的多变性。但是flash有一定的数据存储范围，当mura补偿数据超过了flash的数据存储范围时，一般是将mura补偿数据以flash的最大存储范围来存储，这样就导致了存储的mura补偿数据与真实值有一定的差值，在数据补偿时，造成显示画面的失真。若增大flash的存储范围，则会相应增大其容量，增加成本。
【发明内容】
本发明主要解决的技术问题是提供一种液晶显示器及其补偿数据的存储方法、数据补偿装置，既能进行精确的数据补偿，有效降低液晶显示器的mura，又能不增加flash的容量，降低成本。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种液晶显示器，其中，所述液晶显示器包括显示面板以及背光；其中，所述液晶显示器还包括驱动器，用于：获取目标显示区域的目标补偿数据；在a≥A且b≤B时，确定所述偏移值为0，在a＜A或b＞B时，确定所述偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；将所述目标补偿数据与所述偏移值进行求和运算，以得到符合所述可存储数据范围的存储补偿数据；所述液晶显示器还包括存储器，用于存储所述偏移值和所述存储补偿数据；所述驱动器还用于获取数据信号以及所述存储器中的所述存储补偿数据和所述偏移值，采用所述偏移值将所述存储补偿数据还原成目标补偿数据，并采用所述目标补偿数据对所述数据信号进行补偿。
其中，所述驱动器还用于：在a＞A、b＞B，且（a-A）＞（b-B）时，确定所述偏移值取值范围为[A-a，B-b]；在a＞A、b＞B，且（a-A）＜（b-B）时，确定所述偏移值为A-a。
其中，所述驱动器还用于：在a＜A、b＜B，且（A-a）＜（B-b）时，确定所述偏移值取值范围为[A-a，B-b]；在a＜A、b＜B，且（A-a）＞（B-b）时，确定所述偏移值为B-b。
其中，所述驱动器还用于：在a＜A或b＞B时，将所述显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；所述存储器还用于：分别存储每个子显示区域的偏移值和存储补偿数据。
其中，还包括：所述驱动器还用于在所述液晶显示器工作时，读取所述存储器中的所述偏移值和所述存储补偿数据，将所述存储补偿数据与所述偏移值进行求差运算，以得到所述目标补偿数据，从而采用所述目标补偿数据对显示区域的数据信号进行补偿。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示器的补偿数据的存储方法，该方法包括：获取显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；存储偏移值和存储补偿数据。
其中，将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值，包括：若a≥A且b≤B，则确定偏移值为0；若a＜A或b＞B，则确定偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围。
其中，若a＜A或b＞B，则确定偏移值为界于A-a和B-b之间的一个值，具体包括：若a＞A、b＞B，且（a-A）＞（b-B），则确定偏移值取值范围为[A-a，B-b]；若a＞A、b＞B，且（a-A）＜（b-B），则确定偏移值为A-a。
其中，若a＜A或b＞B，则确定偏移值为界于A-a和B-b之间的一个值，具体包括：若a＜A、b＜B，且（A-a）＜（B-b），则确定偏移值取值范围为[A-a，B-b]；若a＜A、b＜B，且（A-a）＞（B-b），则确定偏移值为B-b。
其中，将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值，包括：若a＜A或b＞B，则将显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据，包括：分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；存储偏移值和存储补偿数据，包括：分别存储每个子显示区域的偏移值和存储补偿数据。其中，采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据，包括：将目标补偿数据与偏移值进行求和运算，以得到符合可存储数据范围的存储补偿数据。
其中，还包括：在液晶显示器工作时，读取存储的偏移值和存储补偿数据，将存储补偿数据与偏移值进行求差运算，以得到目标补偿数据，从而采用目标补偿数据对显示区域的数据信号进行补偿。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示器的数据补偿装置，该装置包括：处理器，用于获取目标显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；存储器，用于存储偏移值和存储补偿数据；处理器还用于获取数据信号以及存储器中的存储补偿数据和偏移值，采用偏移值将存储补偿数据还原成目标补偿数据，并采用目标补偿数据对数据信号进行补偿。
其中，处理器具体用于：在a≥A且b≤B时，确定偏移值为0；以及在a＜A或b＞B时，确定偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围。
其中，处理器还用于：在a＞A、b＞B，且（a-A）＞（b-B）时，确定偏移值取值范围为[A-a，B-b]；在a＞A、b＞B，且（a-A）＜（b-B）时，确定偏移值为A-a。
其中，处理器还用于：在a＜A、b＜B，且（A-a）＜（B-b）时，确定偏移值取值范围为[A-a，B-b]；在a＜A、b＜B，且（A-a）＞（B-b）时，确定偏移值为B-b。
其中，处理器还用于：在a＜A或b＞B时，将显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围；分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；分别存储每个子显示区域的偏移值和存储补偿数据。
其中，处理器还用于：将目标补偿数据与偏移值进行求和运算，以得到符合可存储数据范围的存储补偿数据。
其中，处理器还用于：在液晶显示器工作时，读取存储的偏移值和存储补偿数据，将存储补偿数据与偏移值进行求差运算，以得到目标补偿数据，从而采用目标补偿数据对显示区域的数据信号进行补偿。
本发明的有益效果是：区别于现有技术的情况，本发明的液晶显示器的补偿数据的存储方法包括：获取显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；存储偏移值和存储补偿数据。通过上述方式，能够在目标补偿数据范围超出预设存储空间的可存储数据范围时，对目标补偿数据进行精确的存储，既能进行精确的数据补偿，有效降低液晶显示器的mura，又能不增加flash的容量，降低成本。
【附图说明】
图1是本发明液晶显示器的补偿数据的存储方法第一实施方式的流程示意图；
图2是本发明液晶显示器的补偿数据的存储方法第一实施方式数据信号与补偿信号的示意图；
图3是本发明液晶显示器的补偿数据的存储方法第一实施方式中第一实施例的目标补偿数据示意图；
图4是本发明液晶显示器的补偿数据的存储方法第一实施方式中第二实施例的目标补偿数据示意图；
图5是本发明液晶显示器的补偿数据的存储方法第一实施方式中第三实施例的目标补偿数据示意图；
图6是本发明液晶显示器的补偿数据的存储方法第一实施方式中第四实施例的目标补偿数据示意图；
图7是本发明液晶显示器的补偿数据的存储方法第二实施方式的流程示意图；
图8是本发明液晶显示器的补偿数据的存储方法第二实施方式一实施例的目标补偿数据示意图；
图9是本发明液晶显示器的数据补偿装置一实施方式的结构示意图；
图10是本发明液晶显示器一实施方式的结构示意图。
【具体实施方式】
参阅图1，图1是本发明液晶显示器的补偿数据的存储方法第一实施方式的流程示意图，该方法包括：
S11：获取显示区域的目标补偿数据。
其中，目标补偿数据即为显示区域的mura补偿数据。
显示区域mura补偿数据由mura修补系统计算得出：相机拍摄3~5个灰阶画面（不同亮度的纯白画面）的mura形态，通过对比panel中心位置的亮度，计算出四周区域需要的mura补偿数据，比中心位置亮的区域，在当前灰阶下降低一定的灰阶值（在flash中存储相应的负值），变暗；比中心位置暗的区域，在当前灰阶下增加一定的灰阶值（在flash中存储相应的正值），变亮；再由数据烧录器将计算出的补偿数据烧录存储在flash中，panel工作时TCON（Timer Control Register）会从flash中读取mura补偿数据，与输入信号（灰阶数据）运算后显示出mura修补之后的亮度一致画面。
具体如图2所示，横左边表示显示区域（其中A、B、C表示相邻的三个像素），纵坐标表示灰阶值。其中，先看曲线1（原始数据曲线），B像素为中间像素，其灰阶值为20，而A像素的灰阶值过高，C像素的灰阶值过低。则可以通过曲线2（补偿数据曲线）对曲线1进行补偿，以得到灰阶值为20的数据信号。
在实际应用中，该补偿数据是存储于flash中，由于flash的容量有限，导致其存储的数据范围也有限，在补偿数据的数据范围跨度较大时，不能直接将其全部存储。
S12：将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值。
Flash中的mura补偿数据一般都是以十六进制来存储的，1个十六进制数据由4个bit组成，例如F（十六进制的15）由4个二进制的1组成（即1111），两个十六进制数据（8个bit）按高、低位排列可以表示00~FF之间的所有数据，因为mura补偿数据有正有负，8个bit中最高位需要用做符号表示位（可以0为正，1为负），那么两个十六进制数据实际可表示的mura补偿数据范围为十进制的-127~+127灰阶（FF=11111111= -127，EF=01111111= +127）；若panel的mura比较严重，部分补偿数据超过-127或者+127灰阶时，则数据会被强制限定为-127或者+127，mura补偿效果失真。
这里以[A，B]表示预设存储空间的可存储数据范围，即[A，B]=[ -127，+127]，[a，b]表示目标补偿数据的数据范围。
将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，即为将[a，b]与[A，B]进行比较，主要是判断[a，b]是否在[A，B]的范围之内。
其中，若a≥A且b≤B，说明目标补偿数据的数据范围在预设存储空间的可存储数据范围之内，无需对其进行偏移修正，则确定其偏移值为0。即可以直接将该目标补偿数据进行存储。
其中，若a＜A或b＞B，说明目标补偿数据的数据范围至少有一个端点超出了可存储数据范围，需要对其进行偏移修正，则确定偏移值为界于A-a和B-b之间的一个值。
具体地，下面以几种具体的实施例进行介绍：
如图3所示，在第一实施例中，在a＞A、b＞B，且（a-A）＞（b-B）时，即将目标补偿数据与预设空间的可存储数据范围比较后，目标补偿数据的下限空余的范围比目标补偿数据上限超出的范围多，则确定偏移值取值范围为[A-a，B-b]，即可以将目标补偿数据修正至下限刚好到A或者上限刚好到B以及其之间的任何值。
优选的，可以直接将Δ=B-b作为该实施例的偏移值。
如图4所示，在第二实施例中，在a＞A、b＞B，且（a-A）＜（b-B）时，即将目标补偿数据与预设空间的可存储数据范围比较后，目标补偿数据的下限空余的范围比目标补偿数据上限超出的范围少，即使将目标补偿数据偏移至预设存储空间的可存储数据范围的最下限时，目标补偿数据的上限仍然超出预设空间的可存储数据范围，此时可以确定偏移值取值范围为A-a，即可以将目标补偿数据修正至下限刚好到A，以使目标补偿数据尽可能多的在预设空间的可存储数据范围之内。
如图5所示，在第三实施例中，在a＜A、b＜B，且（A-a）＜（B-b）时，即将目标补偿数据与预设空间的可存储数据范围比较后，目标补偿数据的上限空余的范围比目标补偿数据下限超出的范围多，则确定偏移值取值范围为[A-a，B-b]，即可以将目标补偿数据修正至下限刚好到A或者上限刚好到B以及其之间的任何值。
优选的，可以直接将Δ=A-a作为该实施例的偏移值。
如图6所示，在第四实施例中，在a＞A、b＞B，且（A-a）＞（B-b）时，即将目标补偿数据与预设空间的可存储数据范围比较后，目标补偿数据的上限空余的范围比目标补偿数据下限超出的范围少，即使将目标补偿数据偏移至预设存储空间的可存储数据范围的最上限时，目标补偿数据的下限仍然超出预设空间的可存储数据范围，此时可以确定偏移值取值范围为B-b，即可以将目标补偿数据修正至上限刚好到B，以使目标补偿数据尽可能多的在预设空间的可存储数据范围之内。
S13：采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据。
上述的四种实施例中，无论目标补偿数据的范围是超过预设空间的可存储数据范围的上限还是下限，我们设定的偏移值总是预设空间的可存储数据范围的端点值减去目标补偿数据的端点值，即设定的偏移值可以是正数，也可以是负数。与之对应的，在对目标补偿数据进行修正时，是将目标补偿数据与偏移值进行求和运算，以得到符合可存储数据范围的存储补偿数据。即当偏移值为正时，求和即是将目标补偿数据向上限方向移动，当偏移值为负时，求和即是将目标补偿数据向下限方向移动。
另外，在液晶显示器工作时，读取存储的偏移值和存储补偿数据，将存储补偿数据与偏移值进行求差运算，以得到目标补偿数据，从而采用目标补偿数据对显示区域的数据信号进行补偿。
可以理解的，在其他实施方式中，也可以将偏移值设置为上述实施方式中的偏移值的相反数，并在对目标补偿数据进行修正时求差，而在数据补偿时，将存储补偿数据和偏移值求和。
另外，在其他实施方式中，也可以将偏移值设置为上述实施方式中的偏移值的绝对值，并在对目标补偿数据进行修正时，根据偏移的方向，相应的采用求和或求差的方式。
S14：存储偏移值和存储补偿数据。
即将上述得到的偏移值和修正后的存储补偿数据存储于flash中。
下面以一个具体的例子对本实施方式进行详细说明：
取[A，B]=[ -127，+127]。若一组目标补偿数据的最小灰阶值a=-110，最大灰阶值b=+133，其中， a＞A、b＞B，且（a-A）＞（b-B），满足上述第一实施例的情况，则可以直接确定偏移值-17≤Δ≤-6，优选的，可以令Δ=-6。
将上述的目标补偿数据[-110，+133]进行修正，与上述的Δ=-6求和，得到存储补偿数据[-116，+127]，该存储补偿数据即在上述预设存储空间的可存储数据范围[ -127，+127]之内。
再将存储补偿数据[-116，+127]与偏移值Δ=-6存储于flash中。
在液晶显示器工作时，读取存储补偿数据[-116，+127]与偏移值Δ=-6，将其进行求差运算，得到目标补偿数据[-110，+133]，再采用该目标补偿数据对数据信号进行补偿。
区别于现有技术，本实施方式的液晶显示器的补偿数据的存储方法包括：获取显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据；存储偏移值和存储补偿数据。通过上述方式，能够在目标补偿数据范围超出预设存储空间的可存储数据范围时，对目标补偿数据进行精确的存储，既能进行精确的数据补偿，有效降低液晶显示器的mura，又能不增加flash的容量，降低成本。
参阅图7，图7是本发明液晶显示器的补偿数据的存储方法第二实施方式的流程示意图，该方法包括：
S71：获取显示区域的目标补偿数据。
S72：若a＜A或b＞B，则将显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值。
其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围。
可以理解的，在a＜A或b＞B时的某些情况下，无论将目标补偿数据如何偏移，均无法使偏移后的补偿数据完全在预设存储空间的可存储数据范围之内。
如图8所示，在一实施例中，在a＜A且b＞B时，即将目标补偿数据与预设空间的可存储数据范围比较后，目标补偿数据的上限和下限均超出了存储空间的可存储数据范围，则将显示区域按照图8中的虚线分为两个子区域（第一子区域的最大数据值为b1，第二子区域的最小数据值为a1）。
在第一子区域中，确定第一偏移值Δ1为A-a与B-b1之间的一个数值，优选的，在A-a小于B-b1时，取Δ1=A-a。
在第二子区域中，确定第二偏移值Δ2为A-a1与B-b之间的一个数值，优选的，在b-B小于a1-A时，取Δ2=B-b。
可以理解的，在对每个子区域的补偿数据进行偏移值的确认以及修正时，可以采用上述第一实施方式中任何一实施例的方式，其原理和步骤类似，这里不再赘述。
S73：分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据。
S74：分别存储每个子显示区域的偏移值和存储补偿数据。
这里的S73与S74与上述S13和S14类似，这里不再赘述。
参阅图9，图9是本发明液晶显示器的数据补偿装置一实施方式的结构示意图，该数据补偿装置包括：
处理器91，用于获取目标显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据。
存储器92，用于存储偏移值和存储补偿数据。
处理器91还用于获取数据信号以及存储器中的存储补偿数据和偏移值，采用偏移值将存储补偿数据还原成目标补偿数据，并采用目标补偿数据对数据信号进行补偿。
其中，处理器91和存储器92可以通过一条总线连接，其中的处理器91可以是处理芯片或TCON（Timer Control Register），TCON也叫逻辑板，屏驱动板，中心控制板，存储器92可以是flash。
可选的，在一实施方式中，处理器92具体用于：在a≥A且b≤B时，确定偏移值为0；以及若a＜A或b＞B，则确定偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围。
可选的，处理器92还用于在a＜A或b＞B时，将显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值。
参阅图10，图10是本发明液晶显示器一实施方式的结构示意图，该液晶显示器包括显示面板10以及背光20。
其中，液晶显示器还包括驱动器30，用于获取目标显示区域的目标补偿数据；将目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；采用偏移值对目标补偿数据进行修正，以得到符合可存储数据范围的存储补偿数据。
该驱动器30可以是TCON，也叫逻辑板，屏驱动板或中心控制板。
其中，液晶显示器还包括存储器40，用于存储偏移值和存储补偿数据。
该存储器40可以是液晶显示器的flash芯片。
驱动器30还用于获取数据信号以及存储器中的存储补偿数据和偏移值，采用偏移值将存储补偿数据还原成目标补偿数据，并采用目标补偿数据对数据信号进行补偿。
可选的，在一实施方式中，驱动器30具体用于：在a≥A且b≤B时，确定偏移值为0；以及若a＜A或b＞B，则确定偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示预设存储空间的可存储数据范围，[a，b]表示目标补偿数据的数据范围。
可选的，驱动器30还用于在a＜A或b＞B时，将显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (19)

  1. 一种液晶显示器，其中，所述液晶显示器包括显示面板以及背光；
    其中，所述液晶显示器还包括驱动器，用于：
    获取目标显示区域的目标补偿数据；
    在a≥A且b≤B时，确定所述偏移值为0，在a＜A或b＞B时，确定所述偏移值为界于A-a和B-b之间的一个值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；
    将所述目标补偿数据与所述偏移值进行求和运算，以得到符合所述可存储数据范围的存储补偿数据；
    所述液晶显示器还包括存储器，用于存储所述偏移值和所述存储补偿数据；
    所述驱动器还用于获取数据信号以及所述存储器中的所述存储补偿数据和所述偏移值，采用所述偏移值将所述存储补偿数据还原成目标补偿数据，并采用所述目标补偿数据对所述数据信号进行补偿。
  2. 根据权利要求1所述的存储方法，其中，
    所述驱动器还用于：
    在a＞A、b＞B，且（a-A）＞（b-B）时，确定所述偏移值取值范围为[A-a，B-b]；
    在a＞A、b＞B，且（a-A）＜（b-B）时，确定所述偏移值为A-a。
  3. 根据权利要求1所述的存储方法，其中，
    所述驱动器还用于：
    在a＜A、b＜B，且（A-a）＜（B-b）时，确定所述偏移值取值范围为[A-a，B-b]；
    在a＜A、b＜B，且（A-a）＞（B-b）时，确定所述偏移值为B-b。
  4. 根据权利要求1所述的存储方法，其中，
    所述驱动器还用于：
    在a＜A或b＞B时，将所述显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；
    分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；
    所述存储器还用于：
    分别存储每个子显示区域的偏移值和存储补偿数据。
  5. 根据权利要求1所述的存储方法，其中，还包括：
    所述驱动器还用于在所述液晶显示器工作时，读取所述存储器中的所述偏移值和所述存储补偿数据，将所述存储补偿数据与所述偏移值进行求差运算，以得到所述目标补偿数据，从而采用所述目标补偿数据对显示区域的数据信号进行补偿。
  6. 一种液晶显示器的补偿数据的存储方法，其中，包括：
    获取显示区域的目标补偿数据；
    将所述目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；
    采用所述偏移值对所述目标补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；
    存储所述偏移值和所述存储补偿数据。
  7. 根据权利要求6所述的存储方法，其中，
    所述将所述目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值，包括：
    若a≥A且b≤B，则确定所述偏移值为0；
    若a＜A或b＞B，则确定所述偏移值为界于A-a和B-b之间的一个值；
    其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围。
  8. 根据权利要求7所述的存储方法，其中，
    所述若a＜A或b＞B，则确定所述偏移值为界于A-a和B-b之间的一个值，具体包括：
    若a＞A、b＞B，且（a-A）＞（b-B），则确定所述偏移值取值范围为[A-a，B-b]；
    若a＞A、b＞B，且（a-A）＜（b-B），则确定所述偏移值为A-a。
  9. 根据权利要求7所述的存储方法，其中，
    所述若a＜A或b＞B，则确定所述偏移值为界于A-a和B-b之间的一个值，具体包括：
    若a＜A、b＜B，且（A-a）＜（B-b），则确定所述偏移值取值范围为[A-a，B-b]；
    若a＜A、b＜B，且（A-a）＞（B-b），则确定所述偏移值为B-b。
  10. 根据权利要求6所述的存储方法，其中，
    所述将所述目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值，包括：
    若a＜A或b＞B，则将所述显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；
    所述采用所述偏移值对所述目标补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据，包括：
    分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；
    所述存储所述偏移值和所述存储补偿数据，包括：
    分别存储每个子显示区域的偏移值和存储补偿数据。
  11. 根据权利要求6所述的存储方法，其中，所述采用所述偏移值对所述目标补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据，包括：
    将所述目标补偿数据与所述偏移值进行求和运算，以得到符合所述可存储数据范围的存储补偿数据。
  12. 根据权利要求11所述的存储方法，其中，还包括：
    在所述液晶显示器工作时，读取存储的所述偏移值和所述存储补偿数据，将所述存储补偿数据与所述偏移值进行求差运算，以得到所述目标补偿数据，从而采用所述目标补偿数据对显示区域的数据信号进行补偿。
  13. 一种液晶显示器的数据补偿装置，其中，包括：
    处理器，用于获取目标显示区域的目标补偿数据；
    将所述目标补偿数据的数据范围与预设存储空间的可存储数据范围进行比较，以确定偏移值；
    采用所述偏移值对所述目标补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；
    存储器，用于存储所述偏移值和所述存储补偿数据；
    所述处理器还用于获取数据信号以及所述存储器中的所述存储补偿数据和所述偏移值，采用所述偏移值将所述存储补偿数据还原成目标补偿数据，并采用所述目标补偿数据对所述数据信号进行补偿。
  14. 根据权利要求13所述的数据补偿装置，其中，
    所述处理器具体用于：
    在a≥A且b≤B时，确定所述偏移值为0；以及
    在a＜A或b＞B时，确定所述偏移值为界于A-a和B-b之间的一个值；
    其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围。
  15. 根据权利要求14所述的数据补偿装置，其中，
    所述处理器还用于：
    在a＞A、b＞B，且（a-A）＞（b-B）时，确定所述偏移值取值范围为[A-a，B-b]；
    在a＞A、b＞B，且（a-A）＜（b-B）时，确定所述偏移值为A-a。
  16. 根据权利要求14所述的数据补偿装置，其中，
    所述处理器还用于：
    在a＜A、b＜B，且（A-a）＜（B-b）时，确定所述偏移值取值范围为[A-a，B-b]；
    在a＜A、b＜B，且（A-a）＞（B-b）时，确定所述偏移值为B-b。
  17. 根据权利要求13所述的数据补偿装置，其中，
    所述处理器还用于：
    在a＜A或b＞B时，将所述显示区域划分为多个子显示区域，将每个子显示区域的补偿数据的数据范围分别与预设存储空间的可存储数据范围进行比较，以确定每个子显示区域偏移值；其中，[A，B]表示所述预设存储空间的可存储数据范围，[a，b]表示所述目标补偿数据的数据范围；
    分别采用每个子区域的偏移值对每个子显示区域的补偿数据进行修正，以得到符合所述可存储数据范围的存储补偿数据；
    分别存储每个子显示区域的偏移值和存储补偿数据。
  18. 根据权利要求13所述的数据补偿装置，其中，
    所述处理器还用于：
    将所述目标补偿数据与所述偏移值进行求和运算，以得到符合所述可存储数据范围的存储补偿数据。
  19. 根据权利要求18所述的数据补偿装置，其中，
    所述处理器还用于：
    在所述液晶显示器工作时，读取存储的所述偏移值和所述存储补偿数据，将所述存储补偿数据与所述偏移值进行求差运算，以得到所述目标补偿数据，从而采用所述目标补偿数据对显示区域的数据信号进行补偿。
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