WO2017000358A1 - 液晶显示面板的Gamma调整方法及装置 - Google Patents

液晶显示面板的Gamma调整方法及装置 Download PDF

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Publication number
WO2017000358A1
WO2017000358A1 PCT/CN2015/086462 CN2015086462W WO2017000358A1 WO 2017000358 A1 WO2017000358 A1 WO 2017000358A1 CN 2015086462 W CN2015086462 W CN 2015086462W WO 2017000358 A1 WO2017000358 A1 WO 2017000358A1
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WIPO (PCT)
Prior art keywords
liquid crystal
grayscale
picture
crystal display
display panel
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Application number
PCT/CN2015/086462
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English (en)
French (fr)
Inventor
熊彬
王英琪
邹恭华
Original Assignee
武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US14/783,728 priority Critical patent/US9892671B2/en
Publication of WO2017000358A1 publication Critical patent/WO2017000358A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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
    • 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
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • 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
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • 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 invention relates to the field of liquid crystal display, and in particular to a gamma adjustment method and apparatus for a liquid crystal display panel.
  • the gamma adjustment process of the existing liquid crystal display panel is generally: using a liquid crystal display panel to respectively display gray scale images of 0 gray scale to 255 gray scale, and then detecting the display brightness of each gray scale image, thereby forming 0 gray scale to 255 gray.
  • the gamma curve of the grayscale image of the liquid crystal display panel of the order; then the gamma curve detected is compared with the preset gamma curve, and the display brightness of each grayscale image is adjusted according to the comparison result, thereby realizing the adjustment of the gamma curve .
  • the liquid crystal display panel needs to display 256 gray scale pictures, and at the same time, the brightness acquisition of 256 gray scale pictures can obtain the corresponding gamma curve, and the operation time is long and the operation cost is high.
  • the object of the present invention is to provide a gamma adjustment method and device for a liquid crystal display panel with short operation time and low operation cost, so as to solve the galax adjustment method and device of the prior liquid crystal display panel, and the operation time is longer and the operation cost is higher. High technical issues.
  • Embodiments of the present invention provide a gamma adjustment method for a liquid crystal display panel, including:
  • Step A1 Dividing a display area of the liquid crystal display panel to obtain n sub-display areas, where n is a positive integer greater than or equal to 2;
  • step A2 the full gray scale picture is divided into n groups to obtain n gray scale picture groups, wherein the gray level picture group is in one-to-one correspondence with the sub display area, and each of the gray scale picture groups includes multiple Grayscale picture;
  • Step A3 The n selected sub-display areas are simultaneously displayed with the first selected grayscale picture in the corresponding grayscale picture group, where the first selected grayscale picture is in the grayscale picture group. Any of the grayscale pictures;
  • Step A4 detecting, by using a photosensor disposed on the sub-display area, a brightness of the first selected grayscale picture
  • Step A5 determining whether there is a grayscale picture to be detected in the grayscale picture group, where the grayscale picture to be detected is the grayscale picture that is not the first selected grayscale picture;
  • step A3 If yes, replace the first selected grayscale picture with the grayscale picture to be detected in the corresponding grayscale picture group, and then go to step A3; if not, go to step A6;
  • Step A6 Obtain a Gamma curve of the liquid crystal display panel according to a gray level of the first selected grayscale picture and a brightness of the first selected grayscale picture;
  • Step A7 adjusting a Gamma curve of the liquid crystal display panel according to a preset gamma curve
  • the step A3 is specifically as follows:
  • the step A4 is specifically:
  • the photoelectric sensor is disposed in a middle portion of the sub-display area, and a light receiving surface of the photosensor is in close contact with the sub-display area;
  • A42 Using the photosensor to detect an analog signal of the brightness of the first selected grayscale picture
  • A43 Convert an analog signal of the brightness of the first selected grayscale picture into a digital signal of the brightness of the first selected grayscale picture.
  • the step A7 is specifically:
  • A71 Determine a luminance difference between the Gamma curve of the liquid crystal display panel and the preset Gamma curve at each gray level.
  • A72 performing brightness compensation on the grayscale image of each grayscale of the liquid crystal display panel according to the brightness difference value of each grayscale to obtain a brightness compensation value
  • the step A72 is specifically:
  • the gamma adjustment method of the liquid crystal display panel of the present invention further includes:
  • Step A8 Store the brightness compensation value of each gray scale, and burn the brightness compensation value into a driving chip of the liquid crystal display panel.
  • the step A8 is specifically:
  • the brightness compensation value is burned into the driving chip of the liquid crystal display panel through the MIPI interface.
  • the area of each of the sub-display areas is equal.
  • the number of the grayscale pictures in each of the grayscale picture groups is equal.
  • An embodiment of the present invention further provides a gamma adjustment method for a liquid crystal display panel, including:
  • Step A1 Dividing a display area of the liquid crystal display panel to obtain n sub-display areas, where n is a positive integer greater than or equal to 2;
  • step A2 the full gray scale picture is divided into n groups to obtain n gray scale picture groups, wherein the gray level picture group is in one-to-one correspondence with the sub display area, and each of the gray scale picture groups includes multiple Grayscale picture;
  • Step A3 The n selected sub-display areas are simultaneously displayed with the first selected grayscale picture in the corresponding grayscale picture group, where the first selected grayscale picture is in the grayscale picture group. Any of the grayscale pictures;
  • Step A4 detecting, by using a photosensor disposed on the sub-display area, a brightness of the first selected grayscale picture
  • Step A5 determining whether there is a grayscale picture to be detected in the grayscale picture group, where the grayscale picture to be detected is the grayscale picture that is not the first selected grayscale picture;
  • step A3 If yes, replace the first selected grayscale picture with the grayscale picture to be detected in the corresponding grayscale picture group, and then go to step A3; if not, go to step A6;
  • Step A6 Obtain a Gamma curve of the liquid crystal display panel according to a gray level of the first selected grayscale picture and a brightness of the first selected grayscale picture;
  • Step A7 Adjust a Gamma curve of the liquid crystal display panel according to a preset gamma curve.
  • the step A3 is specifically:
  • each of the sub-display areas to display the first selected grayscale picture in the corresponding grayscale picture group by a gray level value from high to low or low to high.
  • the step A4 is specifically:
  • the photoelectric sensor is disposed in a middle portion of the sub-display area, and a light receiving surface of the photosensor is in close contact with the sub-display area;
  • A42 Using the photosensor to detect an analog signal of the brightness of the first selected grayscale picture
  • A43 Convert an analog signal of the brightness of the first selected grayscale picture into a digital signal of the brightness of the first selected grayscale picture.
  • the step A7 is specifically:
  • A71 Determine a luminance difference between the Gamma curve of the liquid crystal display panel and the preset Gamma curve at each gray level.
  • A72 performing brightness compensation on the grayscale image of each grayscale of the liquid crystal display panel according to the brightness difference value of each grayscale to obtain a brightness compensation value
  • the step A72 is specifically:
  • the gamma adjustment method of the liquid crystal display panel of the present invention further includes:
  • Step A8 Store the brightness compensation value of each gray scale, and burn the brightness compensation value into a driving chip of the liquid crystal display panel.
  • the step A8 is specifically:
  • the brightness compensation value is burned into the driving chip of the liquid crystal display panel through the MIPI interface.
  • the area of each of the sub-display areas is equal.
  • the number of the grayscale pictures in each of the grayscale picture groups is equal.
  • the embodiment of the invention further provides a gamma adjustment device for a liquid crystal display panel, comprising:
  • a display area dividing module configured to divide a display area of the liquid crystal display panel to obtain n sub-display areas, where n is a positive integer greater than or equal to 2;
  • An all-gray-scale picture dividing module is configured to divide the full gray-scale picture into n groups to obtain n gray-scale picture groups, wherein the gray-scale picture group and the sub-display area are in one-to-one correspondence, each of the grays
  • the gray level picture is included in the step group;
  • a display module configured to cause n the sub-display areas to simultaneously display the first selected grayscale picture in the corresponding grayscale picture group, where the first selected grayscale picture is the grayscale picture group Any of the grayscale pictures;
  • a brightness detecting module configured to detect brightness of the first selected grayscale picture by using a photosensor disposed on the sub display area
  • a determining module configured to determine whether there is a grayscale image to be detected in the grayscale image group, wherein the grayscale image to be detected is the grayscale image that is not the first selected grayscale image;
  • a grayscale picture replacement module configured to replace the first selected grayscale picture with a grayscale picture to be detected in the corresponding grayscale picture group
  • a gamma curve acquiring module configured to acquire a gamma curve of the liquid crystal display panel according to a gray level of the first selected grayscale picture and a brightness of the first selected grayscale picture;
  • the Gamma curve adjustment module is configured to adjust a Gamma curve of the liquid crystal display panel according to a preset gamma curve.
  • the display module is specifically configured to display each of the sub display regions by a grayscale value from high to low or low to high to display the corresponding grayscale The first selected grayscale picture in the group of pictures.
  • the area of each of the sub-display regions is equal.
  • the number of the grayscale pictures in each of the grayscale picture groups is equal.
  • the gamma adjustment method and apparatus of the liquid crystal display panel of the present invention simultaneously display a plurality of gray scale images by using a plurality of sub display regions, thereby greatly shortening the operation of the gamma curve adjustment operation. Time, while reducing the operating cost of the Gamma curve adjustment operation; solving the gamma adjustment method of the existing liquid crystal display panel and the technical problem of long operation time and high operation cost of the device.
  • FIG. 1 is a flow chart of a preferred embodiment of a Gamma adjustment method of a liquid crystal display panel of the present invention
  • FIG. 2 is a flow chart showing a step A4 of a preferred embodiment of the gamma adjustment method of the liquid crystal display panel of the present invention
  • FIG. 3 is a flow chart showing a step A7 of a preferred embodiment of the gamma adjustment method of the liquid crystal display panel of the present invention
  • FIG. 4 is a schematic structural view of a preferred embodiment of a gamma adjusting device of a liquid crystal display panel of the present invention.
  • FIG. 1 is a flow chart of a preferred embodiment of a gamma adjustment method for a liquid crystal display panel of the present invention.
  • the gamma adjustment method of the liquid crystal display panel of the preferred embodiment includes:
  • Step A1 dividing a display area of the liquid crystal display panel to obtain n sub-display areas
  • Step A2 dividing the full gray scale picture into n groups to obtain n gray scale picture groups
  • Step A3 causing n sub-display areas to simultaneously display the first selected grayscale picture in the corresponding grayscale picture group;
  • Step A4 detecting the brightness of the first selected grayscale picture by using a photoelectric sensor disposed on the sub display area;
  • Step A5 determining whether there is a grayscale image to be detected in the grayscale picture group. If there is a grayscale image to be detected in the grayscale image group, replacing the first selected grayscale image in the corresponding grayscale image group. Grayscale picture, then go to step A3; if there is no grayscale picture to be detected in the grayscale picture group, go to step A6;
  • Step A6 Obtain a Gamma curve of the liquid crystal display panel according to a gray level of the first selected grayscale picture and a brightness of the first selected grayscale picture;
  • Step A7 adjusting a Gamma curve of the liquid crystal display panel according to a preset gamma curve
  • step A8 the brightness compensation value of each gray level is stored, and the brightness compensation value is burned into the driving chip of the liquid crystal display panel.
  • step A1 the gamma adjustment device divides the display area of the liquid crystal display panel to obtain n sub-display areas; wherein n is a positive integer greater than or equal to 2, and the area of each sub-display area is convenient for the division operation of the sub-display area. All are equal. If divided into two sub-display areas, two sub-display areas can be set by up-and-down or left-right arrangement; if divided into three sub-display areas, three sub-display areas can be set by means of upper middle, lower or left, right and right; For the four sub-display areas, four sub-display areas can be set in a field type arrangement. Then go to step A2.
  • step A2 the gamma adjustment device divides the full grayscale picture of the liquid crystal display panel into n groups to acquire n grayscale picture groups.
  • the grayscale picture group can be in one-to-one correspondence with the sub display area, wherein each grayscale picture group includes a plurality of grayscale pictures of different gray levels. Then go to step A3.
  • step A3 the gamma adjustment device simultaneously displays the first selected grayscale picture in the corresponding grayscale picture group determined in step A2 using the n sub display areas determined in step A1.
  • the first selected grayscale picture is any grayscale picture in the grayscale picture group. That is, each sub-display area needs to display all the gray-scale pictures in the corresponding gray-scale picture group by setting the first selected gray-scale picture.
  • each sub display area may display the first selected grayscale picture in the corresponding grayscale picture group by the gray level value from high to low or low to high. Then go to step A4.
  • step A4 the gamma adjustment device detects the brightness of the first selected grayscale screen by using the photoelectric sensor disposed on the sub-display area.
  • FIG. 2 is a preferred embodiment of the gamma adjustment method of the liquid crystal display panel of the present invention.
  • Step A41 the gamma adjusting device sets the photoelectric sensor in the middle of the sub-display area, and the light receiving surface of the photoelectric sensor is closely attached to the sub-display area, so as to better display the display brightness of the sub-display area, and avoid the adjacent sub-display area.
  • the effect of the brightness of the grayscale picture on the brightness detection of the sub-display area of the area go to step A42.
  • step A42 the gamma adjusting means detects the analog signal of the brightness of the first selected grayscale picture using the photosensor; then proceeds to step A43.
  • step A43 the gamma adjusting device converts the analog signal of the brightness of the first selected grayscale picture into the digital signal of the brightness of the first selected grayscale picture for subsequent brightness compensation processing. Then go to step A5.
  • step A5 the gamma adjustment device determines whether there is a grayscale picture to be detected in the grayscale picture group, where the grayscale picture to be detected is a grayscale picture that does not become the first selected grayscale picture; if there is a grayscale picture group To detect the grayscale picture, replace the first selected grayscale picture with the grayscale picture to be detected in the corresponding grayscale picture group, and then go to step A3 to obtain the brightness of all grayscale pictures in the grayscale picture group. . If there is no grayscale image to be detected in the grayscale picture group, it indicates that the brightness of all grayscale pictures in the grayscale picture group has been acquired, and then go to step A6.
  • step A6 the gamma adjusting device acquires the gamma curve of the liquid crystal display panel according to the grayscale of the first selected grayscale picture and the brightness of the first selected grayscale image acquired in step A4, and then proceeds to step A7.
  • step A7 the gamma adjusting device adjusts the gamma of the liquid crystal display panel obtained in step A6 according to the preset gamma curve.
  • FIG. 3 is a flowchart of step A7 of a preferred embodiment of the gamma adjustment method of the liquid crystal display panel of the present invention. This step A7 includes:
  • Step A71 the gamma adjusting device determines a brightness difference between the Gamma curve of the liquid crystal display panel and the preset gamma curve at each gray level;
  • Step A72 the gamma adjusting device performs brightness compensation on the grayscale pictures of the gray scales of the liquid crystal display panel according to the brightness difference values of the gray scales obtained in step A71, to obtain the brightness compensation values of the gray scales by using the Fourier transform;
  • step A73 the gamma adjusting device adjusts the gamma curve of the liquid crystal display panel using the brightness compensation value obtained in step A72, and detects whether the gamma curve of the adjusted liquid crystal display panel conforms to the preset gamma curve, and then proceeds to step A8.
  • step A8 since the gamma curve of the liquid crystal display panel in step A7 has confirmed that the adjustment is correct, then the gamma adjustment device stores the brightness compensation value of each gray scale and passes the MIPI interface (mobile industry processor interface, Mobile).
  • the Industry Processor Interface burns the brightness compensation value to the driving chip of the liquid crystal display panel to drive the brightness of the screen of the liquid crystal display panel.
  • the gamma adjustment method of the liquid crystal display panel of the present invention simultaneously displays a plurality of gray scale images using a plurality of sub display regions, which greatly shortens the operation time of the Gamma curve adjustment operation and reduces the operation cost of the Gamma curve adjustment operation.
  • FIG. 4 is a schematic structural view of a preferred embodiment of a gamma adjustment device for a liquid crystal display panel of the present invention.
  • the gamma adjustment device 40 of the liquid crystal display panel of the preferred embodiment includes a display area dividing module 41, a full grayscale picture dividing module 42, a display module 43, a brightness detecting module 44, a determining module 45, a grayscale picture replacing module 46, and a Gamma curve.
  • the acquisition module 47, the Gamma curve adjustment module 48, and the storage module 49 are obtained.
  • the display area dividing module 41 is configured to divide the display area of the liquid crystal display panel to obtain n sub-display areas, where n is a positive integer greater than or equal to 2.
  • the full gray scale picture dividing module 42 is configured to divide the full gray scale picture into n groups to obtain n gray scale picture groups, wherein the gray level picture group and the sub display area are in one-to-one correspondence, and each gray level picture group includes multiple Grayscale pictures.
  • the display module 43 is configured to enable the n sub-display areas to simultaneously display the first selected grayscale picture in the corresponding grayscale picture group, where the first selected grayscale picture is any grayscale picture in the grayscale picture group.
  • the brightness detection module 44 is configured to detect the brightness of the first selected grayscale picture using a photosensor disposed on the sub display area.
  • the determining module 45 is configured to determine whether there is a grayscale picture to be detected in the grayscale picture group, where the grayscale picture to be detected is a grayscale picture that is not the first selected grayscale picture.
  • the grayscale picture replacement module 46 is configured to replace the first selected grayscale picture with the grayscale picture to be detected in the corresponding grayscale picture group.
  • the gamma curve acquisition module 47 is configured to obtain a gamma curve of the liquid crystal display panel according to the gray level of the first selected gray scale picture and the brightness of the first selected gray scale picture.
  • the Gamma curve adjustment module 48 is configured to adjust the Gamma curve of the liquid crystal display panel according to a preset gamma curve.
  • the storage module 49 is configured to store the brightness compensation values of the gray scales, and burn the brightness compensation values into the driving chip of the liquid crystal display panel.
  • the display area dividing module 41 first divides the display area of the liquid crystal display panel to obtain n sub-display areas; wherein n is a positive integer greater than or equal to 2, in order to For the division operation of the sub display area, the area of each sub display area is equal. If divided into two sub-display areas, two sub-display areas can be set by up-and-down or left-right arrangement; if divided into three sub-display areas, three sub-display areas can be set by means of upper middle, lower or left, right and right; For the four sub-display areas, four sub-display areas can be set in a field type arrangement.
  • the full gray scale picture dividing module 42 divides the full gray scale picture of the liquid crystal display panel into n groups to acquire n gray scale picture groups.
  • the grayscale picture group can be in one-to-one correspondence with the sub display area, wherein each grayscale picture group includes a plurality of grayscale pictures of different gray levels.
  • the display module 43 simultaneously displays the first selected grayscale image in the corresponding grayscale image group determined by the full grayscale image dividing module 42 using the n subdisplay regions determined by the display region dividing module 41.
  • the first selected grayscale picture is any grayscale picture in the grayscale picture group. That is, each sub-display area needs to display all the gray-scale pictures in the corresponding gray-scale picture group by setting the first selected gray-scale picture.
  • each sub display area may display the first selected grayscale picture in the corresponding grayscale picture group by the gray level value from high to low or low to high.
  • the brightness detection module 44 then detects the brightness of the first selected grayscale picture using a photosensor disposed on the sub-display area.
  • the determining module 45 determines whether there is a grayscale picture to be detected in the grayscale picture group, where the grayscale picture to be detected is a grayscale picture that is not the first selected grayscale picture; if there is a grayscale to be detected in the grayscale picture group For the picture, the first selected grayscale picture is replaced with the grayscale picture to be detected in the corresponding grayscale picture group, and then the display module 43 uses the sub display area again and the first selected gray level in the corresponding grayscale picture group. The picture is used to obtain the brightness of all grayscale pictures in the grayscale picture group. If there is no grayscale image to be detected in the grayscale picture group, the brightness of all the grayscale pictures in the grayscale picture group has been obtained.
  • the gamma curve acquisition module 47 then acquires the gamma curve of the liquid crystal display panel according to the gray level of the first selected grayscale picture and the brightness of the first selected grayscale picture acquired by the brightness detection module 44.
  • the gamma curve adjustment module 48 then adjusts the gamma curve of the liquid crystal display panel acquired by the gamma curve acquisition module 47 according to the preset gamma curve.
  • the storage module 49 stores the brightness compensation values of the gray scales and passes the MIPI interface (Mobile Industry Processor Interface, Mobile Industry Processor). Interface) Burns the brightness compensation value into the driving chip of the liquid crystal display panel to drive the brightness of the screen of the liquid crystal display panel.
  • MIPI interface Mobile Industry Processor Interface, Mobile Industry Processor. Interface
  • the specific working principle of the gamma adjusting device of the liquid crystal display panel of the preferred embodiment is the same as or similar to the description in the preferred embodiment of the gamma adjusting method of the liquid crystal display panel.
  • the gamma adjustment method and device of the liquid crystal display panel of the present invention simultaneously display a plurality of gray scale images by using a plurality of sub display regions, which greatly shortens the operation time of the Gamma curve adjustment operation, and reduces the operation cost of the Gamma curve adjustment operation;

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

一种液晶显示面板的Gamma调整方法，其包括：对液晶显示面板的显示区域进行划分（A1）；将全灰阶画面划分为n组（A2）；使n个子显示区域同时显示相应的灰阶画面组中的第一选定灰阶画面（A3）；检测第一选定灰阶画面的亮度（A4）；获取液晶显示面板的Gamma曲线（A6）；以及对液晶显示面板的Gamma曲线进行调整（A7）。

Description

液晶显示面板的Gamma调整方法及装置 技术领域
本发明涉及液晶显示领域，特别是涉及一种液晶显示面板的Gamma调整方法及装置。
 背景技术
随着社会的发展，人们对液晶显示面板的显示品质的要求越来越高，特别是对反映图像的灰阶和亮度变化的Gamma曲线的要求越来越高。
现有的液晶显示面板的Gamma调整过程一般是：使用液晶显示面板分别显示0灰阶至255灰阶的灰阶图像，然后检测每个灰阶图像的显示亮度，从而形成0灰阶至255灰阶的液晶显示面板的灰阶画面的Gamma曲线；随后将检测的Gamma曲线与预设Gamma曲线进行对比，并根据对比结果对每个灰阶画面的显示亮度进行调整，从而实现对Gamma曲线的调整。
但是在实际操作过程中，液晶显示面板需要显示256次灰阶画面，同时进行256次灰阶画面的亮度采集才能获取相应的Gamma曲线，操作时间较长且操作成本较高。
故，有必要提供一种液晶显示面板的Gamma调整方法及装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种操作时间短且操作成本较低的液晶显示面板的Gamma调整方法及装置，以解决现有的液晶显示面板的Gamma调整方法及装置的操作时间较长以及操作成本较高的技术问题。
 技术解决方案
本发明实施例提供一种液晶显示面板的Gamma调整方法，其包括：
步骤A1、对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
步骤A2、将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
步骤A3、使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
步骤A4、使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
步骤A5、判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
如存在则使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面，随后转到步骤A3；如不存在则转到步骤A6；
步骤A6、根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
步骤A7、根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整；
其中所述步骤A3具体为：
使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面；
所述步骤A4具体为：
A41、将所述光电传感器设置在所述子显示区域的中部，且所述光电传感器的光接收面紧贴所述子显示区域；
A42、使用所述光电传感器检测所述第一选定灰阶画面的亮度的模拟信号；以及
A43、将所述第一选定灰阶画面的亮度的模拟信号转化为所述第一选定灰阶画面的亮度的数字信号。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A7具体为：
A71、确定所述液晶显示面板的Gamma曲线与所述预设的Gamma曲线在各灰阶的亮度差值；
A72、根据各灰阶的所述亮度差值，对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到亮度补偿值；以及
A73、使用所述亮度补偿值，对所述液晶显示面板的Gamma曲线进行调整。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A72具体为：
根据各灰阶的所述亮度差值，使用傅里叶变换对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到所述亮度补偿值。
在本发明所述的液晶显示面板的Gamma调整方法中，所述液晶显示面板的Gamma调整方法还包括：
步骤A8、存储各灰阶的所述亮度补偿值，并将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A8具体为：
通过MIPI接口将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
在本发明所述的液晶显示面板的Gamma调整方法中，每个所述子显示区域的面积相等。
在本发明所述的液晶显示面板的Gamma调整方法中，每个所述灰阶画面组中的所述灰阶画面的数量相等。
本发明实施例还提供一种液晶显示面板的Gamma调整方法，其包括：
步骤A1、对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
步骤A2、将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
步骤A3、使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
步骤A4、使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
步骤A5、判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
如存在则使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面，随后转到步骤A3；如不存在则转到步骤A6；
步骤A6、根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
步骤A7、根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A3具体为：
使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A4具体为：
A41、将所述光电传感器设置在所述子显示区域的中部，且所述光电传感器的光接收面紧贴所述子显示区域；
A42、使用所述光电传感器检测所述第一选定灰阶画面的亮度的模拟信号；以及
A43、将所述第一选定灰阶画面的亮度的模拟信号转化为所述第一选定灰阶画面的亮度的数字信号。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A7具体为：
A71、确定所述液晶显示面板的Gamma曲线与所述预设的Gamma曲线在各灰阶的亮度差值；
A72、根据各灰阶的所述亮度差值，对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到亮度补偿值；以及
A73、使用所述亮度补偿值，对所述液晶显示面板的Gamma曲线进行调整。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A72具体为：
根据各灰阶的所述亮度差值，使用傅里叶变换对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到所述亮度补偿值。
在本发明所述的液晶显示面板的Gamma调整方法中，所述液晶显示面板的Gamma调整方法还包括：
步骤A8、存储各灰阶的所述亮度补偿值，并将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
在本发明所述的液晶显示面板的Gamma调整方法中，所述步骤A8具体为：
通过MIPI接口将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
在本发明所述的液晶显示面板的Gamma调整方法中，每个所述子显示区域的面积相等。
在本发明所述的液晶显示面板的Gamma调整方法中，每个所述灰阶画面组中的所述灰阶画面的数量相等。
本发明实施例还提供一种液晶显示面板的Gamma调整装置，其包括：
显示区域划分模块，用于对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
全灰阶画面划分模块，用于将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
显示模块，用于使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
亮度检测模块，用于使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
判断模块，用于判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
灰阶画面替换模块，用于使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面；
Gamma曲线获取模块，用于根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
Gamma曲线调整模块，用于根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整。
在本发明所述的液晶显示面板的Gamma调整装置中，所述显示模块具体用于使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面。
在本发明所述的液晶显示面板的Gamma调整装置中，每个所述子显示区域的面积相等。
在本发明所述的液晶显示面板的Gamma调整装置中，每个所述灰阶画面组中的所述灰阶画面的数量相等。
 有益效果
相较于现有的液晶显示面板的Gamma调整方法及装置，本发明的液晶显示面板的Gamma调整方法及装置使用多个子显示区域同时显示多个灰阶画面，大大缩短了Gamma曲线调整操作的操作时间，同时降低了Gamma曲线调整操作的操作成本；解决了现有的液晶显示面板的Gamma调整方法及装置的操作时间较长以及操作成本较高的技术问题。
 附图说明
图1为本发明的液晶显示面板的Gamma调整方法的优选实施例的流程图；
图2为本发明的液晶显示面板的Gamma调整方法的优选实施例的步骤A4的流程图；
图3为本发明的液晶显示面板的Gamma调整方法的优选实施例的步骤A7的流程图；
图4为本发明的液晶显示面板的Gamma调整装置的优选实施例的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
请参照图1，图1为本发明的液晶显示面板的Gamma调整方法的优选实施例的流程图。本优选实施例的液晶显示面板的Gamma调整方法包括：
步骤A1，对液晶显示面板的显示区域进行划分，以获取n个子显示区域；
步骤A2，将全灰阶画面划分为n组，以获取n个灰阶画面组；
步骤A3，使n个子显示区域同时显示相应的灰阶画面组中的第一选定灰阶画面；
步骤A4，使用设置在子显示区域上的光电传感器检测第一选定灰阶画面的亮度；
步骤A5，判断灰阶画面组中是否存在待检测灰阶画面，如灰阶画面组中存在待检测灰阶画面，则使用相应的灰阶画面组中的待检测灰阶画面替换第一选定灰阶画面，随后转到步骤A3；如灰阶画面组中不存在待检测灰阶画面，则转到步骤A6；
步骤A6，根据第一选定灰阶画面的灰阶以及第一选定灰阶画面的亮度，获取液晶显示面板的Gamma曲线；
步骤A7，根据预设的Gamma曲线对液晶显示面板的Gamma曲线进行调整；
步骤A8，存储各灰阶的亮度补偿值，并将亮度补偿值烧录至液晶显示面板的驱动芯片中。
下面详细说明本优选实施例的液晶显示面板的Gamma调整方法的各步骤的具体流程。
在步骤A1中，Gamma调整装置对液晶显示面板的显示区域进行划分，以获取n个子显示区域；其中n为大于等于2的正整数，为了便于子显示区域的划分操作，每个子显示区域的面积均相等。如划分为两个子显示区域，可采用上下或左右排列的方式设置两个子显示区域；如划分为三个子显示区域，可采用上中下或左中右排列的方式设置三个子显示区域；如划分为四个子显示区域，可采用田字型排列的方式设置四个子显示区域。随后转到步骤A2。
在步骤A2中，Gamma调整装置将液晶显示面板的全灰阶画面划分为n组，以获取n个灰阶画面组。这样灰阶画面组可与子显示区域一一对应，其中每个灰阶画面组中包括多个不同灰阶的灰阶画面。随后转到步骤A3。
在步骤A3中，Gamma调整装置使用步骤A1确定的n个子显示区域同时显示步骤A2中确定的相应的灰阶画面组中的第一选定灰阶画面。其中第一选定灰阶画面为灰阶画面组中的任一灰阶画面。即每个子显示区域需要通过设定第一选定灰阶画面，显示相应的灰阶画面组中的所有的灰阶画面。为了便于子显示区域显示灰阶画面，每个子显示区域可按灰阶值由高到低或由低到高显示相应的灰阶画面组中的第一选定灰阶画面。随后转到步骤A4。
在步骤A4中，Gamma调整装置使用设置在子显示区域上的光电传感器检测第一选定灰阶画面的亮度，具体可参照图2，图2为本发明的液晶显示面板的Gamma调整方法的优选实施例的步骤A4的流程图。该步骤A4包括：
步骤A41，Gamma调整装置将光电传感器设置在子显示区域的中部，且光电传感器的光接收面紧贴子显示区域，以较好的感应子显示区域的显示亮度，避免相邻的子显示区域的灰阶画面的亮度对本区域的子显示区域的亮度检测的影响。随后转到步骤A42。
步骤A42，Gamma调整装置使用光电传感器检测第一选定灰阶画面的亮度的模拟信号；随后转到步骤A43。
步骤A43，Gamma调整装置将第一选定灰阶画面的亮度的模拟信号转换为第一选定灰阶画面的亮度的数字信号，以便后续进行亮度补偿处理。随后转到步骤A5。
在步骤A5中，Gamma调整装置判断灰阶画面组中是否存在待检测灰阶画面，其中待检测灰阶画面为未成为第一选定灰阶画面的灰阶画面；如灰阶画面组中存在待检测灰阶画面，则使用相应的灰阶画面组中的待检测灰阶画面替换第一选定灰阶画面，随后转到步骤A3，以便获取灰阶画面组中的所有灰阶画面的亮度。如灰阶画面组中不存在待检测灰阶画面，则说明已获取灰阶画面组中的所有灰阶画面的亮度，则转到步骤A6。
在步骤A6中，Gamma调整装置根据第一选定灰阶画面的灰阶以及步骤A4中获取的第一选定灰阶画面的亮度，获取液晶显示面板的Gamma曲线，随后转到步骤A7。
在步骤A7中，Gamma调整装置根据预设的Gamma曲线对步骤A6中获取的液晶显示面板的Gamma进行调整。具体可参照图3，图3为本发明的液晶显示面板的Gamma调整方法的优选实施例的步骤A7的流程图。该步骤A7包括：
步骤A71，Gamma调整装置确定液晶显示面板的Gamma曲线与预设的Gamma曲线在各灰阶的亮度差值；
步骤A72，Gamma调整装置根据步骤A71获取的各灰阶的亮度差值，使用傅里叶变换对液晶显示面板的各灰阶的灰阶画面进行亮度补偿，以得到各灰阶的亮度补偿值；
步骤A73，Gamma调整装置使用步骤A72获取的亮度补偿值，对液晶显示面板的Gamma曲线进行调整，并检测调整后的液晶显示面板的Gamma曲线是否符合预设的Gamma曲线，随后转到步骤A8。
在步骤A8中，由于步骤A7中的液晶显示面板的Gamma曲线已经确认调整正确，随后Gamma调整装置存储各灰阶的亮度补偿值，并通过MIPI接口（移动产业处理器接口，Mobile Industry Processor Interface）将亮度补偿值烧录至液晶显示面板的驱动芯片中，以便对液晶显示面板的画面亮度进行驱动。
这样即完成了本优选实施例的液晶显示面板的Gamma调整过程。
本发明的液晶显示面板的Gamma调整方法使用多个子显示区域同时显示多个灰阶画面，大大缩短了Gamma曲线调整操作的操作时间，同时降低了Gamma曲线调整操作的操作成本。
本发明还提供一种液晶显示面板的Gamma调整装置，请参照图4，图4为本发明的液晶显示面板的Gamma调整装置的优选实施例的结构示意图。本优选实施例的液晶显示面板的Gamma调整装置40包括显示区域划分模块41、全灰阶画面划分模块42、显示模块43、亮度检测模块44、判断模块45、灰阶画面替换模块46、Gamma曲线获取模块47、Gamma曲线调整模块48以及存储模块49。
显示区域划分模块41用于对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数。全灰阶画面划分模块42用于将全灰阶画面划分为n组，以获取n个灰阶画面组，其中灰阶画面组与子显示区域一一对应，每个灰阶画面组中包括多个灰阶画面。显示模块43用于使n个子显示区域同时显示相应的灰阶画面组中的第一选定灰阶画面，其中第一选定灰阶画面为灰阶画面组中的任一灰阶画面。亮度检测模块44用于使用设置在子显示区域上的光电传感器检测第一选定灰阶画面的亮度。判断模块45用于判断灰阶画面组中是否存在待检测灰阶画面，其中待检测灰阶画面为未成为第一选定灰阶画面的灰阶画面。灰阶画面替换模块46用于使用相应的灰阶画面组中的待检测灰阶画面替换第一选定灰阶画面。Gamma曲线获取模块47用于根据第一选定灰阶画面的灰阶以及第一选定灰阶画面的亮度，获取液晶显示面板的Gamma曲线。Gamma曲线调整模块48用于根据预设的Gamma曲线对液晶显示面板的Gamma曲线进行调整。存储模块49用于存储各灰阶的亮度补偿值，并将亮度补偿值烧录至液晶显示面板的驱动芯片中。
本优选实施例的液晶显示面板的Gamma调整装置40使用时，首先显示区域划分模块41对液晶显示面板的显示区域进行划分，以获取n个子显示区域；其中n为大于等于2的正整数，为了便于子显示区域的划分操作，每个子显示区域的面积均相等。如划分为两个子显示区域，可采用上下或左右排列的方式设置两个子显示区域；如划分为三个子显示区域，可采用上中下或左中右排列的方式设置三个子显示区域；如划分为四个子显示区域，可采用田字型排列的方式设置四个子显示区域。
随后全灰阶画面划分模块42将液晶显示面板的全灰阶画面划分为n组，以获取n个灰阶画面组。这样灰阶画面组可与子显示区域一一对应，其中每个灰阶画面组中包括多个不同灰阶的灰阶画面。
然后显示模块43使用显示区域划分模块41确定的n个子显示区域同时显示全灰阶画面划分模块42确定的相应的灰阶画面组中的第一选定灰阶画面。其中第一选定灰阶画面为灰阶画面组中的任一灰阶画面。即每个子显示区域需要通过设定第一选定灰阶画面，显示相应的灰阶画面组中的所有的灰阶画面。为了便于子显示区域显示灰阶画面，每个子显示区域可按灰阶值由高到低或由低到高显示相应的灰阶画面组中的第一选定灰阶画面。
随后亮度检测模块44使用设置在子显示区域上的光电传感器检测第一选定灰阶画面的亮度。
然后判断模块45判断灰阶画面组中是否存在待检测灰阶画面，其中待检测灰阶画面为未成为第一选定灰阶画面的灰阶画面；如灰阶画面组中存在待检测灰阶画面，则使用相应的灰阶画面组中的待检测灰阶画面替换第一选定灰阶画面，随后显示模块43再次使用子显示区域同时相应的灰阶画面组中的第一选定灰阶画面，以便获取灰阶画面组中的所有灰阶画面的亮度。如灰阶画面组中不存在待检测灰阶画面，则说明已获取灰阶画面组中的所有灰阶画面的亮度。
随后Gamma曲线获取模块47根据第一选定灰阶画面的灰阶以及亮度检测模块44获取的第一选定灰阶画面的亮度，获取液晶显示面板的Gamma曲线。
然后Gamma曲线调整模块48根据预设的Gamma曲线对Gamma曲线获取模块47获取的液晶显示面板的Gamma曲线进行调整。
最后由于液晶显示面板的Gamma曲线已经确认调整正确， 存储模块49存储各灰阶的亮度补偿值，并通过MIPI接口（移动产业处理器接口，Mobile Industry Processor Interface）将亮度补偿值烧录至液晶显示面板的驱动芯片中，以便对液晶显示面板的画面亮度进行驱动。
这样即完成了本优选实施例的液晶显示面板的Gamma调整过程。
本优选实施例的液晶显示面板的Gamma调整装置的具体工作原理与上述的液晶显示面板的Gamma的调整方法的优选实施例中的描述相同或相似，具体请参见上述液晶显示面板的Gamma的调整方法的优选实施例中的相关描述。
本发明的液晶显示面板的Gamma调整方法及装置使用多个子显示区域同时显示多个灰阶画面，大大缩短了Gamma曲线调整操作的操作时间，同时降低了Gamma曲线调整操作的操作成本；解决了现有的液晶显示面板的Gamma调整方法及装置的操作时间较长以及操作成本较高的技术问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种液晶显示面板的Gamma调整方法，其包括：
    步骤A1、对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
    步骤A2、将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
    步骤A3、使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
    步骤A4、使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
    步骤A5、判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
    如存在则使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面，随后转到步骤A3；如不存在则转到步骤A6；
    步骤A6、根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
    步骤A7、根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整；
    其中所述步骤A3具体为：
    使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面；
    所述步骤A4具体为：
    A41、将所述光电传感器设置在所述子显示区域的中部，且所述光电传感器的光接收面紧贴所述子显示区域；
    A42、使用所述光电传感器检测所述第一选定灰阶画面的亮度的模拟信号；以及
    A43、将所述第一选定灰阶画面的亮度的模拟信号转化为所述第一选定灰阶画面的亮度的数字信号。
  2. 根据权利要求1所述的液晶显示面板的Gamma调整方法，其中所述步骤A7具体为：
    A71、确定所述液晶显示面板的Gamma曲线与所述预设的Gamma曲线在各灰阶的亮度差值；
    A72、根据各灰阶的所述亮度差值，对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到亮度补偿值；以及
    A73、使用所述亮度补偿值，对所述液晶显示面板的Gamma曲线进行调整。
  3. 根据权利要求2所述的液晶显示面板的Gamma调整方法，其中所述步骤A72具体为：
    根据各灰阶的所述亮度差值，使用傅里叶变换对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到所述亮度补偿值。
  4. 根据权利要求2所述的液晶显示面板的Gamma调整方法，其中所述液晶显示面板的Gamma调整方法还包括：
    步骤A8、存储各灰阶的所述亮度补偿值，并将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
  5. 根据权利要求4所述的液晶显示面板的Gamma调整方法，其中所述步骤A8具体为：
    通过MIPI接口将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
  6. 根据权利要求1所述的液晶显示面板的Gamma调整方法，其中每个所述子显示区域的面积相等。
  7. 根据权利要求1所述的液晶面板的Gamma调整方法，其中每个所述灰阶画面组中的所述灰阶画面的数量相等。
  8. 一种液晶显示面板的Gamma调整方法，其包括：
    步骤A1、对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
    步骤A2、将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
    步骤A3、使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
    步骤A4、使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
    步骤A5、判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
    如存在则使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面，随后转到步骤A3；如不存在则转到步骤A6；
    步骤A6、根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
    步骤A7、根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整。
  9. 根据权利要求8所述的液晶显示面板的Gamma调整方法，其中所述步骤A3具体为：
    使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面。
  10. 根据权利要求8所述的液晶显示面板的Gamma调整方法，其中所述步骤A4具体为：
    A41、将所述光电传感器设置在所述子显示区域的中部，且所述光电传感器的光接收面紧贴所述子显示区域；
    A42、使用所述光电传感器检测所述第一选定灰阶画面的亮度的模拟信号；以及
    A43、将所述第一选定灰阶画面的亮度的模拟信号转化为所述第一选定灰阶画面的亮度的数字信号。
  11. 根据权利要求8所述的液晶显示面板的Gamma调整方法，其中所述步骤A7具体为：
    A71、确定所述液晶显示面板的Gamma曲线与所述预设的Gamma曲线在各灰阶的亮度差值；
    A72、根据各灰阶的所述亮度差值，对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到亮度补偿值；以及
    A73、使用所述亮度补偿值，对所述液晶显示面板的Gamma曲线进行调整。
  12. 根据权利要求11所述的液晶显示面板的Gamma调整方法，其中所述步骤A72具体为：
    根据各灰阶的所述亮度差值，使用傅里叶变换对所述液晶显示面板的各灰阶的所述灰阶画面进行亮度补偿，以得到所述亮度补偿值。
  13. 根据权利要求11所述的液晶显示面板的Gamma调整方法，其中所述液晶显示面板的Gamma调整方法还包括：
    步骤A8、存储各灰阶的所述亮度补偿值，并将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
  14. 根据权利要求13所述的液晶显示面板的Gamma调整方法，其中所述步骤A8具体为：
    通过MIPI接口将所述亮度补偿值烧录至所述液晶显示面板的驱动芯片中。
  15. 根据权利要求8所述的液晶显示面板的Gamma调整方法，其中每个所述子显示区域的面积相等。
  16. 根据权利要求8所述的液晶面板的Gamma调整方法，其中每个所述灰阶画面组中的所述灰阶画面的数量相等。
  17. 一种液晶显示面板的Gamma调整装置，其包括：
    显示区域划分模块，用于对液晶显示面板的显示区域进行划分，以获取n个子显示区域，其中n为大于等于2的正整数；
    全灰阶画面划分模块，用于将全灰阶画面划分为n组，以获取n个灰阶画面组，其中所述灰阶画面组与所述子显示区域一一对应，每个所述灰阶画面组中包括多个灰阶画面；
    显示模块，用于使n个所述子显示区域同时显示相应的所述灰阶画面组中的第一选定灰阶画面，其中所述第一选定灰阶画面为所述灰阶画面组中的任一所述灰阶画面；
    亮度检测模块，用于使用设置在所述子显示区域上光电传感器检测所述第一选定灰阶画面的亮度；
    判断模块，用于判断所述灰阶画面组中是否存在待检测灰阶画面，其中所述待检测灰阶画面为未成为所述第一选定灰阶画面的所述灰阶画面；
    灰阶画面替换模块，用于使用相应的所述灰阶画面组中的待检测灰阶画面替换所述第一选定灰阶画面；
    Gamma曲线获取模块，用于根据所述第一选定灰阶画面的灰阶以及所述第一选定灰阶画面的亮度，获取所述液晶显示面板的Gamma曲线；以及
    Gamma曲线调整模块，用于根据预设的Gamma曲线对所述液晶显示面板的Gamma曲线进行调整。
  18. 根据权利要求17所述的液晶显示面板的Gamma调整装置，其中所述显示模块具体用于使每个所述子显示区域按灰阶值由高到低或由低到高显示相应的所述灰阶画面组中的所述第一选定灰阶画面。
  19. 根据权利要求17所述的液晶显示面板的Gamma调整装置，其中每个所述子显示区域的面积相等。
  20. 根据权利要求17所述的液晶显示面板的Gamma调整装置，其中每个所述灰阶画面组中的所述灰阶画面的数量相等。
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