CN110827775B - Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen - Google Patents
Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen Download PDFInfo
- Publication number
- CN110827775B CN110827775B CN201910891971.2A CN201910891971A CN110827775B CN 110827775 B CN110827775 B CN 110827775B CN 201910891971 A CN201910891971 A CN 201910891971A CN 110827775 B CN110827775 B CN 110827775B
- Authority
- CN
- China
- Prior art keywords
- screen
- gamma
- machine
- axis
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- G09G3/34—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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
The invention discloses a visual display calibration method, a device and a system for an all-in-one machine screen GAMMA, wherein the method comprises the following steps: adjusting the HDMI signal output by the computer and received by the screen of the all-in-one machine into a white picture, and adjusting the color temperature of the white picture to a preset color temperature; presetting HDMI signals output by a computer into signals with different brightness modes, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer; dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals; respectively adjusting corresponding RGB values according to X-axis data of the optimal value point to enable the color temperature of the current picture to meet the preset color temperature requirement and form three primary color curves; and smoothing the formed three primary color curves to obtain three smooth three primary color curves. In the embodiment of the invention, the best effect can be displayed on the pictures displayed by the screen of the all-in-one machine under different brightness.
Description
Technical Field
The invention relates to the technical field of screen display correction, in particular to a visual display calibration method, device and system for an all-in-one machine screen GAMMA.
Background
Due to some characteristics of the liquid crystal screen, even if screens in the same batch are different in picture expression, the difference in color temperature is mainly reflected when different brightness is displayed; at present, the common practice is to select an intermediate value as much as possible when adjusting the color temperature, so that the color temperature difference of pictures with different brightness is not too large. However, this method is only a compromise method, and cannot make the displayed picture of the screen achieve the best effect; or when the screen displays the pictures with different brightness, the adopted color temperature data are the same, so that the pictures with different brightness can not be ensured to display the optimal effect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a visual display calibration method, device and system for an all-in-one machine screen GAMMA, which can ensure that pictures displayed by the all-in-one machine screen under different brightness can show the best effect.
In order to solve the above technical problem, an embodiment of the present invention provides a method for calibrating visual display of a screen GAMMA of an all-in-one machine, where the method includes:
the method comprises the steps that HDMI signals output by a computer and received by a screen of the all-in-one machine are adjusted to be white pictures, and the color temperature of the white pictures is adjusted to be a preset color temperature;
presetting the HDMI signals output by the computer into signals with different brightness modes, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
respectively adjusting corresponding RGB values according to X-axis data of optimal value points of the GAMMA of the all-in-one machine screen corresponding to different brightness mode signals, so that the color temperature of the current picture meets the preset color temperature requirement and three primary color curves are formed;
and smoothing the formed three primary color curves to obtain three smooth three primary color curves.
Optionally, the adjusting the color temperature of the white picture to a preset color temperature includes:
setting a preset color temperature required to be reached by a display picture of the screen of the all-in-one machine; and the number of the first and second groups,
adjusting color temperature parameters based on an adjusting main board of the screen of the all-in-one machine, and adjusting the color temperature of the white picture to a preset color temperature; the preset color temperature is 6500K.
Optionally, the presetting of the HDMI signal output by the computer to different brightness mode signals and the reading of the color coordinate value of the current screen of the all-in-one machine based on the color analyzer include:
presetting the HDMI signals output by the computer into 8 signals with different brightness modes;
adjusting each different brightness mode signal output by the computer, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on the color analyzer;
the RGB values corresponding to the colors of the pattern formed by the 8 different luminance pattern signals are: {32,32,32},{64,64,64},{96,96,96},{128,128,128},{160,160,160},{192,192,192},{224,224,224},{255,255,255}.
Optionally, before dividing the X axis of the all-in-one machine screen GAMMA into 16 equal parts, the method further includes:
acquiring a default GAMMA straight line based on the default GAMMA value of the all-in-one machine screen; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
Optionally, the dividing the X axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one machine screen GAMMA under different brightness mode signals further includes:
and dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and sequentially traversing different brightness mode signals to obtain the corresponding optimal value points of the GAMMA of the all-in-one machine screen under the different brightness mode signals.
Optionally, the dividing the X axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the optimal value points of the all-in-one machine screen GAMMA corresponding to different brightness mode signals includes:
dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts based on the characteristic that the Y axis data of the GAMMA of the all-in-one machine screen influences the graph brightness;
the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen;
starting from the position of 64 of an X axis of an all-in-one machine screen GAMMA, taking data of a central point of the X axis as a maximum point, obtaining the current picture brightness of the all-in-one machine screen and recording the current picture brightness as a first brightness value; and the number of the first and second groups,
moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis of the central point of the X axis to be maximum, measuring the current brightness and recording the current brightness as a second brightness value;
and comparing the brightness values of the first brightness value and the second brightness value, and taking the data of the X axis corresponding to the large brightness value as the optimal value point of the GAMMA of the all-in-one machine screen in the current brightness mode.
Optionally, the first luminance value includes a respective first luminance value of three primary colors of RGB; the second luminance values include respective second luminance values of three primary colors of RGB.
Optionally, the smoothing processing is performed on the three formed three primitive color curves to obtain three smoothed primitive color curves, where the three smoothed primitive color curves include:
and smoothing 8 points of each three-primary-color curve in the three formed three-primary-color curves by a spline algorithm to obtain three smooth three-primary-color curves.
In addition, the embodiment of the invention also provides a visual display calibration device of the all-in-one machine screen GAMMA, which comprises the following components:
adjusting a preset module: the device comprises a screen of the all-in-one machine, a display screen and a control module, wherein the screen of the all-in-one machine is used for adjusting an HDMI signal output by a computer and received by the screen of the all-in-one machine into a white picture and adjusting the color temperature of the white picture to a preset color temperature;
a color coordinate obtaining module: the device is used for presetting the HDMI signals output by the computer into signals with different brightness modes and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
an optimum point obtaining module: the system is used for dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
a curve forming module: the system comprises a display screen, a display screen and a control panel, wherein the display screen is used for displaying a current picture, and the control panel is used for adjusting corresponding RGB values according to X-axis data of an optimal value point of a corresponding integrated machine screen GAMMA under different brightness mode signals to enable the color temperature of the current picture to meet the requirement of preset color temperature and form three tricolor curves;
a smoothing module: and the three tricolor curves are used for smoothing the formed three tricolor curves to obtain three smooth tricolor curves.
In addition, the embodiment of the invention also provides a visual display calibration system of the all-in-one machine screen GAMMA, which comprises the following steps: the system comprises an all-in-one machine screen, a computer and a color analyzer; the computer is connected with the screen of the all-in-one machine based on an HDMI (high-definition multimedia interface); the computer is connected with the color analyzer based on a USB interface; the color analyzer is in signal connection with the screen of the all-in-one machine; wherein the content of the first and second substances,
the system is configured for performing the visual display calibration method of any of the above.
In the embodiment of the invention, the method can realize that the pictures displayed by the screen of the all-in-one machine under different brightness can all display the best effect, and improve the visual experience of the user in using the screen of the all-in-one machine for display.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for calibrating a visual display of a game machine screen in an embodiment of the present invention;
fig. 2 is a schematic structural component diagram of a visual display calibration apparatus for a GAMMA panel of the all-in-one machine in the embodiment of the present invention;
fig. 3 is a schematic structural component diagram of a visual display calibration system of the all-in-one screen GAMMA in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for calibrating a visual display of a GAMMA screen of an all-in-one machine according to an embodiment of the present invention.
As shown in fig. 1, a method for calibrating a visual display of a game machine screen, the method comprising:
s11: the method comprises the steps that HDMI signals output by a computer and received by a screen of the all-in-one machine are adjusted to be white pictures, and the color temperature of the white pictures is adjusted to be a preset color temperature;
in a specific implementation process of the present invention, the adjusting the color temperature of the white picture to a preset color temperature includes: setting a preset color temperature required to be reached by a display picture of the screen of the all-in-one machine; adjusting color temperature parameters based on an adjusting main board of the screen of the all-in-one machine, and adjusting the color temperature of the white picture to a preset color temperature; the preset color temperature is 6500K.
Specifically, the computer is connected with the color analyzer and the screen of the all-in-one machine, the picture displayed by the screen of the all-in-one machine is set to be the preset color temperature required to be reached, then the color temperature parameter is adjusted according to the adjusting main board of the screen of the all-in-one machine, and finally the color temperature of the white picture is adjusted to be the preset color temperature which is 6500K and can be specifically set according to the user requirement and the color temperature supported by the screen of the all-in-one machine.
The computer outputs HDMI signals to the screen of the all-in-one machine through the HDMI interface, and then the screen of the all-in-one machine adjusts the received HDMI signals sent by the computer to white pictures to be displayed on the screen display screen; i.e., RGB is (255 ).
S12: presetting the HDMI signals output by the computer into signals with different brightness modes, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
in the specific implementation process of the present invention, the presetting of the HDMI signal output by the computer to different brightness mode signals and the reading of the color coordinate value of the current screen of the all-in-one machine based on the color analyzer includes: presetting the HDMI signals output by the computer into 8 signals with different brightness modes; adjusting each different brightness mode signal output by the computer, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on the color analyzer; the RGB values corresponding to the colors of the pattern formed by the 8 different luminance pattern signals are: {32,32,32},{64,64,64},{96,96,96},{128,128,128},{160,160,160},{192,192,192},{224,224,224},{255,255,255}.
Specifically, for the HDMI signal output by the computer, in the present invention, the HDMI signal can be set to a plurality of different brightness mode signals; setting 8 different brightness mode signals, orderly outputting the 8 different brightness mode signals to an all-in-one machine screen through output adjustment of a computer, and respectively reading color coordinate values (X, Y and Z) of the 8 different brightness mode signals through a color analyzer connected with the all-in-one machine screen.
Wherein, the RGB values corresponding to the colors of the graph formed by the 8 different luminance mode signals are: {32,32,32}, {64,64,64}, {96,96,96}, {128,128,128}, {160,160,160}, {192,192,192}, {224,224,224}, {255,255 }; the specific models of the color analyzer are as follows: CA-310.
S13: dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
in the specific implementation process of the invention, before dividing the X axis of the all-in-one machine screen GAMMA into 16 equal parts, the method further comprises the following steps: acquiring a default GAMMA straight line based on the default GAMMA value of the all-in-one machine screen; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
Further, the dividing the X-axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one machine screen GAMMA under different brightness mode signals further includes: and dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and sequentially traversing different brightness mode signals to obtain the corresponding optimal value points of the GAMMA of the all-in-one machine screen under the different brightness mode signals.
Further, the dividing the X-axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one machine screen GAMMA under different brightness mode signals includes: dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts based on the characteristic that the Y axis data of the GAMMA of the all-in-one machine screen influences the graph brightness; the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen; starting from the position of 64 of an X axis of an all-in-one machine screen GAMMA, taking data of a central point of the X axis as a maximum point, obtaining the current picture brightness of the all-in-one machine screen and recording the current picture brightness as a first brightness value; moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis of the central point of the X axis to be maximum, measuring the current brightness and recording the current brightness as a second brightness value; and comparing the brightness values of the first brightness value and the second brightness value, and taking the data of the X axis corresponding to the large brightness value as the optimal value point of the GAMMA of the all-in-one machine screen in the current brightness mode.
Further, the first luminance values include respective first luminance values of three primary colors of RGB; the second luminance values include respective second luminance values of three primary colors of RGB.
Specifically, the default GAMMA displayed on the screen of the all-in-one machine is a straight line; and, the GAMMA of the screen is of a physical attribute, fixed, unchangeable, uncorrectable; therefore, it is necessary to adjust the input signal to overlap with the GAMMA of the screen, so that the visual display of the screen achieves the best effect; therefore, according to the default GAMMA value of the screen of the all-in-one machine, a default GAMMA straight line is obtained; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
Then, the X axis of the GAMMA of the all-in-one machine screen is divided into 16 equal parts, and the optimal value points of the GAMMA of the all-in-one machine screen corresponding to the signals with different brightness modes are obtained by sequentially traversing the signals with different brightness modes.
Dividing the X axis of the GAMMA of the screen of the all-in-one machine into 16 equal parts according to the characteristic that the data of the Y axis of the GAMMA of the all-in-one machine affects the brightness of the graph; the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen; starting from the position of 64 of the X axis of the GAMMA of the all-in-one machine screen, taking the data of the central point of the X axis as a maximum point, and obtaining the brightness of the current all-in-one machine screen and recording the brightness as R1V 1; moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis at the center point of the X axis to be maximum, measuring the current brightness and recording the current brightness as R1V 2; comparing the sizes of R1V1 and R1V2, if Rlv1 is larger than Rlv2, the data of the X axis corresponding to Rlv1 brightness is the optimal value of R of GAMMA of the current test picture, the R, G and B values of GAMMA corresponding to the current picture are respectively found according to the method, and the optimal point of GAMMA corresponding to each picture can be found after 8 test pictures under different brightness mode signals are sequentially traversed.
That is, according to the characteristic that the GAMMA Y-axis data affects the brightness of the graph, the GAMMA X-axis is divided into 16 equal parts, if the current picture is (32,32,32), then this picture can correspond to one data of GAMMA X-axis, therefore, starting from the position of X-axis 64, the data of the central point is taken as the maximum point, and the brightness of the current picture is measured and recorded RlV1, at the same time, the X-axis is moved to right 64 units, and when the data of the central point Y is set to be maximum, the brightness is measured and recorded Rlv2, comparing RlV1 and RlV2, if RlV1 is larger than RlV2, the data of RlV 1X-axis corresponding to the brightness is the best value of GAMMA R of the current test picture, and according to this method, the R, G, B values of GAMMA corresponding to the current picture are found, and 8 test pictures are traversed in turn, the best point of GAMMA corresponding to each picture can be found.
Therefore, the set of the best point of GAMMA in the X axis corresponding to each picture can be found as follows:
[1]＝{rX＝64gX＝64bX＝64}；
[2]＝{rX＝224gX＝192bX＝160}；
[3]＝{rX＝384gX＝320bX＝288}；
[4]＝{rX＝544gX＝448bX＝384}；
[5]＝{rX＝672gX＝576bX＝512}；
[6]＝{rX＝832gX＝704bX＝608}；
[7]＝{rX＝928gX＝832bX＝736}；
[8]＝{rX＝992gX＝928bX＝832}。
s14: respectively adjusting corresponding RGB values according to X-axis data of optimal value points of the GAMMA of the all-in-one machine screen corresponding to different brightness mode signals, so that the color temperature of the current picture meets the preset color temperature requirement and three primary color curves are formed;
in the specific implementation process of the invention, according to the data of the X axis of the optimal points, the corresponding R, G and B values are respectively adjusted, so that the color temperature of the current picture meets the requirement of 6500K; and sequentially adjusting 8 test pictures under 8 different brightness mode signals to obtain three tricolor curves.
S15: and smoothing the formed three primary color curves to obtain three smooth three primary color curves.
In the specific implementation process of the present invention, the smoothing process is performed on the three formed tricolor curves to obtain three smooth tricolor curves, and the smoothing process includes: and smoothing 8 points of each three-primary-color curve in the three formed three-primary-color curves by a spline algorithm to obtain three smooth three-primary-color curves.
Specifically, because the gamma requirement is a smooth curve, and the data above does not meet the requirement, a smoothing process needs to be performed, and 8 points of each line are subjected to a smoothing process of a spline algorithm to obtain a smooth curve, so that the color temperature consistency of pictures with different brightness can be ensured.
In the embodiment of the invention, the method can realize that the pictures displayed by the screen of the all-in-one machine under different brightness can all display the best effect, and improve the visual experience of the user in using the screen of the all-in-one machine for display.
Examples
Referring to fig. 2, fig. 2 is a schematic structural assembly diagram of a visual display calibration apparatus for a GAMMA of an all-in-one machine in an embodiment of the present invention.
As shown in fig. 2, a visual display calibration apparatus for a kiosk screen GAMMA, the apparatus comprising:
adjusting the presetting module 21: the device comprises a screen of the all-in-one machine, a display screen and a control module, wherein the screen of the all-in-one machine is used for adjusting an HDMI signal output by a computer and received by the screen of the all-in-one machine into a white picture and adjusting the color temperature of the white picture to a preset color temperature;
in a specific implementation process of the present invention, the adjusting the color temperature of the white picture to a preset color temperature includes: setting a preset color temperature required to be reached by a display picture of the screen of the all-in-one machine; adjusting color temperature parameters based on an adjusting main board of the screen of the all-in-one machine, and adjusting the color temperature of the white picture to a preset color temperature; the preset color temperature is 6500K.
Specifically, the computer is connected with the color analyzer and the screen of the all-in-one machine, the picture displayed by the screen of the all-in-one machine is set to be the preset color temperature required to be reached, then the color temperature parameter is adjusted according to the adjusting main board of the screen of the all-in-one machine, and finally the color temperature of the white picture is adjusted to be the preset color temperature which is 6500K and can be specifically set according to the user requirement and the color temperature supported by the screen of the all-in-one machine.
The computer outputs HDMI signals to the screen of the all-in-one machine through the HDMI interface, and then the screen of the all-in-one machine adjusts the received HDMI signals sent by the computer to white pictures to be displayed on the screen display screen; i.e., RGB is (255 ).
The color coordinate obtaining module 22: the device is used for presetting the HDMI signals output by the computer into signals with different brightness modes and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
in the specific implementation process of the present invention, the presetting of the HDMI signal output by the computer to different brightness mode signals and the reading of the color coordinate value of the current screen of the all-in-one machine based on the color analyzer includes: presetting the HDMI signals output by the computer into 8 signals with different brightness modes; adjusting each different brightness mode signal output by the computer, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on the color analyzer; the RGB values corresponding to the colors of the pattern formed by the 8 different luminance pattern signals are: {32,32,32},{64,64,64},{96,96,96},{128,128,128},{160,160,160},{192,192,192},{224,224,224},{255,255,255}.
Specifically, for the HDMI signal output by the computer, in the present invention, the HDMI signal can be set to a plurality of different brightness mode signals; setting 8 different brightness mode signals, orderly outputting the 8 different brightness mode signals to an all-in-one machine screen through output adjustment of a computer, and respectively reading color coordinate values (X, Y and Z) of the 8 different brightness mode signals through a color analyzer connected with the all-in-one machine screen.
Wherein, the RGB values corresponding to the colors of the graph formed by the 8 different luminance mode signals are: {32,32,32}, {64,64,64}, {96,96,96}, {128,128,128}, {160,160,160}, {192,192,192}, {224,224,224}, {255,255 }; the specific models of the color analyzer are as follows: CA-310.
Optimum value point obtaining module 23: the system is used for dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
in the specific implementation process of the invention, before dividing the X axis of the all-in-one machine screen GAMMA into 16 equal parts, the method further comprises the following steps: acquiring a default GAMMA straight line based on the default GAMMA value of the all-in-one machine screen; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
Further, the dividing the X-axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one machine screen GAMMA under different brightness mode signals further includes: and dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and sequentially traversing different brightness mode signals to obtain the corresponding optimal value points of the GAMMA of the all-in-one machine screen under the different brightness mode signals.
Further, the dividing the X-axis of the all-in-one machine screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one machine screen GAMMA under different brightness mode signals includes: dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts based on the characteristic that the Y axis data of the GAMMA of the all-in-one machine screen influences the graph brightness; the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen; starting from the position of 64 of an X axis of an all-in-one machine screen GAMMA, taking data of a central point of the X axis as a maximum point, obtaining the current picture brightness of the all-in-one machine screen and recording the current picture brightness as a first brightness value; moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis of the central point of the X axis to be maximum, measuring the current brightness and recording the current brightness as a second brightness value; and comparing the brightness values of the first brightness value and the second brightness value, and taking the data of the X axis corresponding to the large brightness value as the optimal value point of the GAMMA of the all-in-one machine screen in the current brightness mode.
Further, the first luminance values include respective first luminance values of three primary colors of RGB; the second luminance values include respective second luminance values of three primary colors of RGB.
Specifically, the default GAMMA displayed on the screen of the all-in-one machine is a straight line; and, the GAMMA of the screen is of a physical attribute, fixed, unchangeable, uncorrectable; therefore, it is necessary to adjust the input signal to overlap with the GAMMA of the screen, so that the visual display of the screen achieves the best effect; therefore, according to the default GAMMA value of the screen of the all-in-one machine, a default GAMMA straight line is obtained; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
Then, the X axis of the GAMMA of the all-in-one machine screen is divided into 16 equal parts, and the optimal value points of the GAMMA of the all-in-one machine screen corresponding to the signals with different brightness modes are obtained by sequentially traversing the signals with different brightness modes.
Dividing the X axis of the GAMMA of the screen of the all-in-one machine into 16 equal parts according to the characteristic that the data of the Y axis of the GAMMA of the all-in-one machine affects the brightness of the graph; the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen; starting from the position of 64 of the X axis of the GAMMA of the all-in-one machine screen, taking the data of the central point of the X axis as a maximum point, and obtaining the brightness of the current all-in-one machine screen and recording the brightness as R1V 1; moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis at the center point of the X axis to be maximum, measuring the current brightness and recording the current brightness as R1V 2; comparing the sizes of R1V1 and R1V2, if Rlv1 is larger than Rlv2, the data of the X axis corresponding to Rlv1 brightness is the optimal value of R of GAMMA of the current test picture, the R, G and B values of GAMMA corresponding to the current picture are respectively found according to the method, and the optimal point of GAMMA corresponding to each picture can be found after 8 test pictures under different brightness mode signals are sequentially traversed.
That is, according to the characteristic that the GAMMA Y-axis data affects the brightness of the graph, the GAMMA X-axis is divided into 16 equal parts, if the current picture is (32,32,32), then this picture can correspond to one data of GAMMA X-axis, therefore, starting from the position of X-axis 64, the data of the central point is taken as the maximum point, and the brightness of the current picture is measured and recorded RlV1, at the same time, the X-axis is moved to right 64 units, and when the data of the central point Y is set to be maximum, the brightness is measured and recorded Rlv2, comparing RlV1 and RlV2, if RlV1 is larger than RlV2, the data of RlV 1X-axis corresponding to the brightness is the best value of GAMMA R of the current test picture, and according to this method, the R, G, B values of GAMMA corresponding to the current picture are found, and 8 test pictures are traversed in turn, the best point of GAMMA corresponding to each picture can be found.
Therefore, the set of the best point of GAMMA in the X axis corresponding to each picture can be found as follows:
[1]＝{rX＝64gX＝64bX＝64}；
[2]＝{rX＝224gX＝192bX＝160}；
[3]＝{rX＝384gX＝320bX＝288}；
[4]＝{rX＝544gX＝448bX＝384}；
[5]＝{rX＝672gX＝576bX＝512}；
[6]＝{rX＝832gX＝704bX＝608}；
[7]＝{rX＝928gX＝832bX＝736}；
[8]＝{rX＝992gX＝928bX＝832}。
curve forming module 24: the system comprises a display screen, a display screen and a control panel, wherein the display screen is used for displaying a current picture, and the control panel is used for adjusting corresponding RGB values according to X-axis data of an optimal value point of a corresponding integrated machine screen GAMMA under different brightness mode signals to enable the color temperature of the current picture to meet the requirement of preset color temperature and form three tricolor curves;
in the specific implementation process of the invention, according to the data of the X axis of the optimal points, the corresponding R, G and B values are respectively adjusted, so that the color temperature of the current picture meets the requirement of 6500K; and sequentially adjusting 8 test pictures under 8 different brightness mode signals to obtain three tricolor curves.
The smoothing module 25: and the three tricolor curves are used for smoothing the formed three tricolor curves to obtain three smooth tricolor curves.
In the specific implementation process of the present invention, the smoothing process is performed on the three formed tricolor curves to obtain three smooth tricolor curves, and the smoothing process includes: and smoothing 8 points of each three-primary-color curve in the three formed three-primary-color curves by a spline algorithm to obtain three smooth three-primary-color curves.
Specifically, because the gamma requirement is a smooth curve, and the data above does not meet the requirement, a smoothing process needs to be performed, and 8 points of each line are subjected to a smoothing process of a spline algorithm to obtain a smooth curve, so that the color temperature consistency of pictures with different brightness can be ensured.
In the embodiment of the invention, the method can realize that the pictures displayed by the screen of the all-in-one machine under different brightness can all display the best effect, and improve the visual experience of the user in using the screen of the all-in-one machine for display.
Examples
Referring to fig. 3, fig. 3 is a schematic structural component diagram of a system for calibrating a visual display of a GAMMA of an all-in-one machine in an embodiment of the present invention.
As shown in fig. 3, a system for visual display calibration of a kiosk screen GAMMA, the system comprising: an all-in-one machine screen 31, a computer 32 and a color analyzer 33; the computer 32 is connected with the all-in-one machine screen 31 based on an HDMI interface; the computer 32 is connected with the color analyzer 33 based on a USB interface; the color analyzer 33 is in signal connection with the all-in-one machine screen 31; wherein the content of the first and second substances,
the system is configured for performing the visual display calibration method of any of the above.
In the specific implementation process of the present invention, please refer to the above embodiments for the specific implementation process of the visual display calibration system of the all-in-one machine screen GAMMA, which is not described herein again.
In the embodiment of the invention, the method can realize that the pictures displayed by the screen of the all-in-one machine under different brightness can all display the best effect, and improve the visual experience of the user in using the screen of the all-in-one machine for display.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
In addition, the method, the device and the system for calibrating the visual display of the all-in-one machine screen GAMMA according to the embodiment of the present invention are described in detail, and a specific embodiment is adopted herein to explain the principle and the implementation manner of the present invention, and the description of the embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A visual display calibration method for a GAMMA of an all-in-one machine screen is characterized by comprising the following steps:
the method comprises the steps that HDMI signals output by a computer and received by a screen of the all-in-one machine are adjusted to be white pictures, and the color temperature of the white pictures is adjusted to be a preset color temperature;
presetting the HDMI signals output by the computer into signals with different brightness modes, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
respectively adjusting corresponding RGB values according to X-axis data of optimal value points of the GAMMA of the all-in-one machine screen corresponding to different brightness mode signals, so that the color temperature of the current picture meets the preset color temperature requirement and three primary color curves are formed;
carrying out smoothing treatment on the three formed three tricolor curves to obtain three smooth tricolor curves;
the method for dividing the X axis of the GAMMA of the all-in-one machine into 16 equal parts and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine under different brightness mode signals comprises the following steps:
dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts based on the characteristic that the Y axis data of the GAMMA of the all-in-one machine screen influences the graph brightness;
the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen;
starting from the position of 64 of an X axis of an all-in-one machine screen GAMMA, taking data of a central point of the X axis as a maximum point, obtaining the current picture brightness of the all-in-one machine screen and recording the current picture brightness as a first brightness value; and the number of the first and second groups,
moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis of the central point of the X axis to be maximum, measuring the current brightness and recording the current brightness as a second brightness value;
and comparing the brightness values of the first brightness value and the second brightness value, and taking the data of the X axis corresponding to the large brightness value as the optimal value point of the GAMMA of the all-in-one machine screen in the current brightness mode.
2. The method of claim 1, wherein the adjusting the color temperature of the white picture to a preset color temperature comprises:
setting a preset color temperature required to be reached by a display picture of the screen of the all-in-one machine; and the number of the first and second groups,
adjusting color temperature parameters based on an adjusting main board of the screen of the all-in-one machine, and adjusting the color temperature of the white picture to a preset color temperature; the preset color temperature is 6500K.
3. The visual display calibration method according to claim 1, wherein the presetting of the HDMI signal outputted from the computer to a different brightness mode signal and the reading of the color coordinate value of the current frame of the all-in-one machine screen based on the color analyzer comprises:
presetting the HDMI signals output by the computer into 8 signals with different brightness modes;
adjusting each different brightness mode signal output by the computer, and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on the color analyzer;
the RGB values corresponding to the colors of the pattern formed by the 8 different luminance pattern signals are: {32,32,32},{64,64,64},{96,96,96},{128,128,128},{160,160,160},{192,192,192},{224,224,224},{255,255,255}.
4. The visual display calibration method of claim 1, wherein before dividing the X-axis of the all-in-one screen GAMMA into 16 equal parts, further comprising:
acquiring a default GAMMA straight line based on the default GAMMA value of the all-in-one machine screen; the default GAMMA straight line has an overlapped straight line composed of three straight lines of three primary colors of RGB.
5. The visual display calibration method of claim 1, wherein the dividing the X-axis of the all-in-one screen GAMMA into 16 equal parts and obtaining the corresponding optimal value points of the all-in-one screen GAMMA under different brightness mode signals further comprises:
and dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts, and sequentially traversing different brightness mode signals to obtain the corresponding optimal value points of the GAMMA of the all-in-one machine screen under the different brightness mode signals.
6. The visual display calibration method of claim 1, wherein the first luminance values comprise respective first luminance values of three primary colors of RGB; the second luminance values include respective second luminance values of three primary colors of RGB.
7. The visual display calibration method according to claim 1, wherein the smoothing of the three formed tristimulus curves to obtain three smoothed tristimulus curves comprises:
and smoothing 8 points of each three-primary-color curve in the three formed three-primary-color curves by a spline algorithm to obtain three smooth three-primary-color curves.
8. A visual display calibration device for a one-piece screen GAMMA, said device comprising:
adjusting a preset module: the device comprises a screen of the all-in-one machine, a display screen and a control module, wherein the screen of the all-in-one machine is used for adjusting an HDMI signal output by a computer and received by the screen of the all-in-one machine into a white picture and adjusting the color temperature of the white picture to a preset color temperature;
a color coordinate obtaining module: the device is used for presetting the HDMI signals output by the computer into signals with different brightness modes and reading the color coordinate value of the current picture of the screen of the all-in-one machine based on a color analyzer;
an optimum point obtaining module: the system is used for dividing the X axis of the GAMMA of the all-in-one machine screen into 16 equal parts and obtaining the corresponding optimal value points of the GAMMA of the all-in-one machine screen under different brightness mode signals;
a curve forming module: the system comprises a display screen, a display screen and a control panel, wherein the display screen is used for displaying a current picture, and the control panel is used for adjusting corresponding RGB values according to X-axis data of an optimal value point of a corresponding integrated machine screen GAMMA under different brightness mode signals to enable the color temperature of the current picture to meet the requirement of preset color temperature and form three tricolor curves;
a smoothing module: the three tricolor curves are used for smoothing the formed three tricolor curves to obtain three smooth tricolor curves;
the optimal value point obtaining module: the integrated machine screen GAMMA processing method is also used for dividing the X axis of the integrated machine screen GAMMA into 16 equal parts based on the characteristic that the Y axis data of the integrated machine screen GAMMA influence the graph brightness; the all-in-one machine screen picture under the current brightness mode signal corresponds to the data of the X axis of the GAMMA of the all-in-one machine screen; starting from the position of 64 of an X axis of an all-in-one machine screen GAMMA, taking data of a central point of the X axis as a maximum point, obtaining the current picture brightness of the all-in-one machine screen and recording the current picture brightness as a first brightness value; moving the X axis of the GAMMA of the all-in-one machine screen to the right by 64 units, setting the data of the Y axis of the central point of the X axis to be maximum, measuring the current brightness and recording the current brightness as a second brightness value; and comparing the brightness values of the first brightness value and the second brightness value, and taking the data of the X axis corresponding to the large brightness value as the optimal value point of the GAMMA of the all-in-one machine screen in the current brightness mode.
9. A system for visual display calibration of an all-in-one screen GAMMA, said system comprising: the system comprises an all-in-one machine screen, a computer and a color analyzer; the computer is connected with the screen of the all-in-one machine based on an HDMI (high-definition multimedia interface); the computer is connected with the color analyzer based on a USB interface; the color analyzer is in signal connection with the screen of the all-in-one machine; wherein the content of the first and second substances,
the system is configured to perform the visual display calibration method of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910891971.2A CN110827775B (en) | 2019-09-17 | 2019-09-17 | Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910891971.2A CN110827775B (en) | 2019-09-17 | 2019-09-17 | Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110827775A CN110827775A (en) | 2020-02-21 |
| CN110827775B true CN110827775B (en) | 2021-08-10 |
Family
ID=69548138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910891971.2A Active CN110827775B (en) | 2019-09-17 | 2019-09-17 | Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110827775B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925498B (en) * | 2021-04-12 | 2024-01-26 | 京东方科技集团股份有限公司 | Method and device for adjusting Gamma value in screen overlapping, screen overlapping and storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845232A (en) * | 2005-04-08 | 2006-10-11 | 浙江大学 | Automatic measurement and correction method and system for LCD GAMMA curve and color temperature |
| WO2007018969A2 (en) * | 2005-08-02 | 2007-02-15 | Kolorific, Inc. | Method and system for automatically calibrating a color display |
| CN101860765A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | White balance adjustment method |
| CN101950548A (en) * | 2010-09-28 | 2011-01-19 | 中航华东光电有限公司 | Backlight color LED complementary color circuit and complementary color method thereof |
| CN102419947A (en) * | 2011-11-21 | 2012-04-18 | 四川长虹电器股份有限公司 | Color temperature debugging method of liquid crystal display screen |
| CN103067743A (en) * | 2012-12-20 | 2013-04-24 | 广州视源电子科技股份有限公司 | System and method of quick adjustment of liquid crystal display television |
| TW201442004A (en) * | 2013-04-17 | 2014-11-01 | Benq Corp | Image processing method of display device and display device thereof |
| CN104185003A (en) * | 2014-08-21 | 2014-12-03 | 深圳市奥拓电子股份有限公司 | Method and device for adjusting color temperature of video image |
| CN104732953A (en) * | 2013-12-18 | 2015-06-24 | 昆山工研院新型平板显示技术中心有限公司 | Gamma parameter determination method, device, display displaying method and device |
| CN106328070A (en) * | 2016-09-28 | 2017-01-11 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method and device |
| CN106782303A (en) * | 2016-12-28 | 2017-05-31 | 上海天马有机发光显示技术有限公司 | A kind of display bearing calibration of display panel, apparatus and system |
| CN107784975A (en) * | 2017-10-25 | 2018-03-09 | 武汉华星光电半导体显示技术有限公司 | The brightness of AMOLED display device and colourity automatic adjusting method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101679360B1 (en) * | 2010-08-05 | 2016-11-25 | 삼성디스플레이 주식회사 | An apparatus and a method for generating gray-scale voltage, and an organic electroluminescent display |
-
2019
- 2019-09-17 CN CN201910891971.2A patent/CN110827775B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845232A (en) * | 2005-04-08 | 2006-10-11 | 浙江大学 | Automatic measurement and correction method and system for LCD GAMMA curve and color temperature |
| WO2007018969A2 (en) * | 2005-08-02 | 2007-02-15 | Kolorific, Inc. | Method and system for automatically calibrating a color display |
| CN101860765A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | White balance adjustment method |
| CN101950548A (en) * | 2010-09-28 | 2011-01-19 | 中航华东光电有限公司 | Backlight color LED complementary color circuit and complementary color method thereof |
| CN102419947A (en) * | 2011-11-21 | 2012-04-18 | 四川长虹电器股份有限公司 | Color temperature debugging method of liquid crystal display screen |
| CN103067743A (en) * | 2012-12-20 | 2013-04-24 | 广州视源电子科技股份有限公司 | System and method of quick adjustment of liquid crystal display television |
| TW201442004A (en) * | 2013-04-17 | 2014-11-01 | Benq Corp | Image processing method of display device and display device thereof |
| CN104732953A (en) * | 2013-12-18 | 2015-06-24 | 昆山工研院新型平板显示技术中心有限公司 | Gamma parameter determination method, device, display displaying method and device |
| CN104185003A (en) * | 2014-08-21 | 2014-12-03 | 深圳市奥拓电子股份有限公司 | Method and device for adjusting color temperature of video image |
| CN106328070A (en) * | 2016-09-28 | 2017-01-11 | 武汉精测电子技术股份有限公司 | OLED module Gamma adjustment and calibration method and device |
| CN106782303A (en) * | 2016-12-28 | 2017-05-31 | 上海天马有机发光显示技术有限公司 | A kind of display bearing calibration of display panel, apparatus and system |
| CN107784975A (en) * | 2017-10-25 | 2018-03-09 | 武汉华星光电半导体显示技术有限公司 | The brightness of AMOLED display device and colourity automatic adjusting method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110827775A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10546522B2 (en) | Apparatus and method for adjusting display parameters and display apparatus | |
| WO2016106999A1 (en) | Method for automatically identifying and calibrating medical color and gray-scale images | |
| CN103067743B (en) | System and method of quick adjustment of liquid crystal display television | |
| JP2017538149A (en) | Liquid crystal panel and driving method thereof | |
| US20160329027A1 (en) | Image processing device with image compensation function and image processing method thereof | |
| JP4542988B2 (en) | Correction method and display device | |
| KR102615596B1 (en) | A display apparatus and a control method thereof | |
| CN111091789B (en) | Display device and color correction method thereof | |
| JP4490899B2 (en) | Adjustment method and display device | |
| WO2023010625A1 (en) | Brightness compensation look-up table generation method and apparatus for display apparatus, and display apparatus | |
| WO2018188203A1 (en) | Compression algorithm verification method, storage medium and display device | |
| JP5618574B2 (en) | Adjustment method and display device | |
| CN110827775B (en) | Visual display calibration method, device and system for GAMMA (GAMMA ray GAMMA) of all-in-one machine screen | |
| CN114333724B (en) | Display brightness and color correction method, device, electronic equipment and storage medium | |
| CN109509457A (en) | The display pattern setting method and liquid crystal display panel of liquid crystal display panel | |
| TW201337903A (en) | Method of introducing white brightness parameter of display panel into white optical feature based on display panel for calculating gray-level white balance gain value to increase its gray-level white balance adjustment precision | |
| TWI377536B (en) | Method to adjust gamma table by gamma curve and color temperature curve | |
| CN109599051B (en) | Chromaticity adjusting method of display screen | |
| CN114495812B (en) | Display panel brightness compensation method and device, electronic equipment and readable storage medium | |
| TW201501115A (en) | Correcting system and correcting method for display device | |
| CN112053650A (en) | Multi-screen color correction method and electronic device thereof | |
| US20140133752A1 (en) | Display apparatus and method for image output thereof | |
| JPH06105185A (en) | Brightness correction method | |
| JPH06324657A (en) | Image display device | |
| CN115170681B (en) | Gamma lookup table generation method and device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 238, room 406, No.1, Yichuang street, Huangpu District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou langguo Electronic Technology Co.,Ltd. Address before: 510000 unit a and B, zone 02, 4th floor, No. 136, Gaopu Road, high tech Development Zone, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU LANGO ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |