CN111640391A - Display screen display adjusting method and system - Google Patents
Display screen display adjusting method and system Download PDFInfo
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- CN111640391A CN111640391A CN201910155993.2A CN201910155993A CN111640391A CN 111640391 A CN111640391 A CN 111640391A CN 201910155993 A CN201910155993 A CN 201910155993A CN 111640391 A CN111640391 A CN 111640391A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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Abstract
The application provides a display screen display adjusting method and a system, wherein the method comprises the following steps: collecting display parameters of each LED module included in the display screen when the LED module is displayed under the current gray scale value; the current gray scale value is one gray scale value in a preset gray scale interval range; determining a correction coefficient for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value; and adjusting the display parameters of the display screen according to the correction coefficients of the LED modules under the current gray-scale value. According to the method and the device, the brightness and the color of the display screen are consistent under all gray scales by performing independent color difference adjustment on each gray scale of the display screen. And because the display parameters obtained by actual acquisition are the actual brightness of the screen, the correction coefficient obtained by calculation of the display parameters obtained by actual acquisition is more accurate, the influence of various actual environmental factors is considered, and the obtained adjustment effect is better.
Description
Technical Field
The application relates to the technical field of display screens, in particular to a display adjusting method and system for a display screen.
Background
Generally, the LED display screen is composed of a plurality of LED light points in different batches, and due to differences in production batches, different color difference differences exist between the LED light points during display, and the differences are intolerable to human vision, and in order to reduce the color difference differences between the LED light points, the display of the display screen needs to be adjusted.
In the related art, a configuration file of an LED display screen is obtained, the configuration file includes batch information of each lamp on the LED display screen, a correction coefficient of each lamp is calculated according to each batch information and used time, and the luminance and chrominance of the LED display screen are adjusted by using the correction coefficient of each lamp. However, the calibration coefficients calculated according to the batch information and the used time belong to theoretical calculation, and the brightness of the actual screen is not considered, and the brightness of the actual screen has many influence factors, such as power supply voltage, ambient temperature and humidity, and the adjustment effect is not good due to the adjustment of the calibration coefficients calculated by the theoretical calculation.
Disclosure of Invention
In view of this, the present application provides a method and a system for adjusting display of a display screen to solve the problem that the adjustment method in the related art does not consider the brightness of the actual screen and the adjustment effect is not good.
According to a first aspect of embodiments of the present application, there is provided a display adjustment method for a display screen, where the display screen is composed of different LED modules, and the different LED modules have different color differences, the method includes:
collecting display parameters of each LED module when the LED module is displayed under the current gray scale value; the current gray scale value is one gray scale value in a preset gray scale interval range;
determining a correction coefficient for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value;
and adjusting the display parameters of the display screen according to the correction coefficients of the LED modules under the current gray-scale value.
According to a second aspect of the embodiments of the present application, a display adjustment system for a display screen is provided, the system includes a luminance and chrominance acquisition device, a display control device, and a display screen, the display screen is composed of different LED modules, and the different LED modules have different color differences;
the brightness and chrominance acquisition equipment is used for acquiring display parameters of each LED module when the LED modules are displayed under the current gray scale value; the current gray scale value is one gray scale value in a preset gray scale interval range, and the acquired display parameters of each LED module under the current gray scale value are sent to the display control equipment;
the display control equipment is used for determining correction coefficients used for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value, and sending the correction coefficients of each LED module under the current gray-scale value to the display screen;
and the display screen is used for correcting the display parameters of the LED modules when the LED modules are displayed under the current gray scale value by using the correction coefficients of the LED modules.
By applying the embodiment of the application, the display parameters of each LED module are acquired when the LED module is displayed under the current gray-scale value (which is one gray-scale value in the preset gray-scale interval range), the correction coefficient of each LED module used for correcting the display of each LED module under the current gray-scale value is determined according to the display parameters of each LED module under the current gray-scale value, and then the display parameters of the display screen are adjusted according to the correction coefficient of each LED module under the current gray-scale value.
Based on the above description, it can be known that the brightness and color consistency under all gray scales can be realized by performing the independent color difference adjustment on each gray scale of the display screen. And because the display parameters obtained by actual acquisition are the actual brightness of the screen, the correction coefficient obtained by calculation of the display parameters obtained by actual acquisition is more accurate, the influence of various actual environmental factors is considered, and the obtained adjustment effect is better.
Drawings
FIG. 1 is a flow chart illustrating an embodiment of a method for adjusting a display of a display screen according to an exemplary embodiment of the present application;
fig. 2 is a block diagram illustrating a display screen display adjustment system according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the related art, in the process of calculating the correction coefficient of each lamp point according to the batch information and the used time of each lamp point, the used time is divided into three time periods, and if the used time is not long, namely the used time is less than or equal to a first value, the correction coefficient of each batch of lamp points is calculated by using the original brightness corresponding to the batch information of each batch of lamp points; if the used time is longer than the first numerical value and less than or equal to the second numerical value, calculating the correction coefficient of each batch of lamp points by using the original brightness and the original brightness attenuation curve corresponding to the batch information of each batch of lamp points and the brightness attenuation curve corresponding to each batch of lamp points; and if the used time is longer than the second numerical value, calculating the brightness correction coefficient of the same batch and the chromaticity correction coefficient of different batches of the lamp points by using the current brightness corresponding to the batch information of the lamp points of each batch. The original brightness and the color corresponding to the batch information, the brightness attenuation curve corresponding to the lamp points of each batch, and the current brightness and the color corresponding to the batch information of the lamp points of each batch are all measured through experiments and stored in a configuration file in advance.
Therefore, the calculation of the correction coefficients is calculated from the theoretical bright chromaticity values measured by experiments, the bright chromaticity of the actual screen is not considered, and the bright chromaticity of the actual screen has many influence factors such as power supply voltage, environmental temperature and humidity, and the like, so that the adjustment effect is not good when the correction coefficients calculated by the theory are adjusted.
Because the gray scale refers to the brightness level relation between the darkest black and the brightest white of the display screen, the brightness consistency of all the gray scales can be ensured only by adjusting each gray scale of the display screen. The related art does not aim at the display adjustment for the gray scale.
Based on this, the application provides a display screen display adjustment method, which includes acquiring display parameters of each LED module when the LED module displays at a current gray scale value (which is a gray scale value in a preset gray scale interval), determining a correction coefficient for correcting the display of each LED module at the current gray scale value according to the display parameters of each LED module at the current gray scale value, and adjusting the display parameters of the display screen according to the correction coefficient of each LED module at the current gray scale value.
Based on the above description, it can be known that the brightness and color consistency under all gray scales can be realized by performing the independent color difference adjustment on each gray scale of the display screen. And because the display parameters obtained by actual acquisition are the actual brightness of the screen, the correction coefficient obtained by calculation of the display parameters obtained by actual acquisition is more accurate, the influence of various actual environmental factors is considered, and the obtained adjustment effect is better.
It should be noted that the technical solution of the present application is also applicable to a plurality of display screens with different chromatic aberration, and the display adjustment of each display screen is realized by acquiring the display parameter of each display screen and calculating the correction coefficient of each display screen.
Fig. 1 is a flowchart of an embodiment of a display screen display adjustment method according to an exemplary embodiment of the present disclosure, where a display screen in the embodiment of the present disclosure is composed of a plurality of different LED modules, each LED module is composed of a plurality of LED light points in the same batch, but the batches of LEDs used by different LED modules may be different, and in a use process of the display screen, different color differences may occur in each LED module due to different batches of LEDs used by each LED module, so that colors of display screens of the display screen are inconsistent. As shown in fig. 1, the display adjustment method for a display screen may include the following steps:
step 101: and collecting display parameters of each LED module when the LED module displays under the current gray scale value, wherein the current gray scale value is one gray scale value in a preset gray scale interval range.
In an embodiment, the display screen can be controlled to display a picture with a specified color under the current gray scale value, and display parameters of each LED module in the display screen under the current gray scale value and when the display screen displays the picture with the specified color are collected.
The display screen has a display capability of a plurality of gray scales, and can have a plurality of gray scale types such as 0-255 gray scales, 0-1023 gray scales and the like according to different display capabilities. The pictures with the specified colors can comprise red, green, blue and white pictures, so that the display parameters corresponding to the four colors of the pictures with the red, green, blue and white can be respectively collected. Because the LED modules have different batches and have large color difference, the display parameters (including at least the luminance and chrominance parameters) of the LED modules of each batch need to be collected for calculating the correction coefficients of the LED modules of each batch.
Step 102: and determining a correction coefficient for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value.
In an embodiment, the target display parameters of the display screen at the current gray scale value may be determined according to the display parameters of each LED module at the current gray scale value, and for each LED module, the correction coefficients of the LED module at the current gray scale value may be determined according to the display parameters of the LED module at the current gray scale value and the target display parameters of the display screen at the current gray scale value.
Based on the description of step 101, the display parameters (luminance and chromaticity) of displaying red, green, blue and white by each LED module at the current gray scale value belong to the color gamut information of each LED module, and the target display parameters (target luminance and target chromaticity) of displaying red, green and blue, that is, the common color gamut information of the entire display screen, can be calculated from the display parameters of displaying red, green, blue and white.
Those skilled in the art can understand that the process of calculating the common color gamut information according to the color gamut information of each LED module can be implemented by related technologies, and the details of the process are not repeated herein.
The process of correction factor determination is described in detail below:
for a certain LED module, the formula for determining the correction coefficient of the LED module under the current gray-scale value is as follows:
wherein R isorig,Gorig,BorigRespectively showing the brightness and chromaticity of red, green and blue displayed by the LED module under the current gray scale value, Rtar,Gtar,BtarRespectively representing the target brightness and target chromaticity of red, green and blue,
and the matrix represents the correction coefficient of the LED module at the current gray-scale value.
Step 103: and adjusting the display parameters of the display screen according to the correction coefficients of the LED modules under the current gray-scale value.
In an embodiment, the correction coefficients of the LED modules at the current gray scale value are sent to the display screen, so that the display screen corrects the display parameters of the LED modules when the LED modules are displaying at the current gray scale value by using the correction coefficients of the LED modules.
Wherein, because this application compares with prior art, each LED module in this application corresponds under every grey level and has a different correction coefficient, and all grey levels all correspond a same correction coefficient among the prior art, consequently when the LED module needs to show under a certain grey level, the display screen utilizes the corresponding correction coefficient of this LED module under this grey level to rectify the display parameter of this LED module. Therefore, compared with the prior art, the method and the device are finer in adjustment and better in adjustment effect.
In an embodiment, after the correction coefficients of the LED modules in each batch at the current gray scale value are sent to the display screen, whether the correction coefficients of the LED modules at the current gray scale value are accurate or not can be verified, if so, whether the current gray scale value is the last unretraversed gray scale value in the preset gray scale interval range or not is checked, and if not, the next gray scale value in the preset gray scale interval range is used as the current gray scale value; and if not, returning to the step of determining the correction coefficient used for correcting the display of each LED module at the current gray-scale value according to the display parameters of each LED module at the current gray-scale value, so as to realize closed-loop adjustment, further reduce the chromatic aberration of the display screen and ensure that the adjustment effect is optimal.
The method comprises the steps that for the process of verifying whether the correction coefficient of each LED module under the current gray scale value is accurate, the display parameters of each LED module under the current gray scale value can be collected again, the difference between the display parameters of each LED module under the current gray scale value and the target display parameters of a display screen under the current gray scale value is determined, and if the difference of any LED module is not within the preset error range, the correction coefficient of each LED module under the current gray scale value is determined to be inaccurate; and if the difference value of each LED module is within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is accurate.
In the above-mentioned process from step 101 to step 103, since the highest gray level is a main factor affecting the color difference of the display screen, the adjustment can be performed in the order from the high gray level value to the low gray level value.
In the embodiment of the application, display parameters of each LED module when displaying under a current gray scale value (which is one gray scale value in a preset gray scale interval range) are collected, a correction coefficient for correcting the display of each LED module under the current gray scale value is determined according to the display parameters of each LED module under the current gray scale value, and then the display parameters of the display screen are adjusted according to the correction coefficient of each LED module under the current gray scale value.
Based on the above description, it can be known that the brightness and color consistency under all gray scales can be realized by performing the independent color difference adjustment on each gray scale of the display screen. And because the display parameters obtained by actual acquisition are the actual brightness of the screen, the correction coefficient obtained by calculation of the display parameters obtained by actual acquisition is more accurate, the influence of various actual environmental factors is considered, and the obtained adjustment effect is better.
Fig. 2 is a structural diagram of a display adjustment system of a display screen according to an exemplary embodiment of the present application, including a brightness and chrominance acquisition device 210, a display control device 220, and a display screen 230, where the display screen 230 is composed of different LED modules, and the different LED modules have different color differences;
the brightness and chrominance acquisition device 210 is configured to acquire display parameters of each LED module when displaying under a current gray scale value; the current gray scale value is a gray scale value in a preset gray scale interval range, and the acquired display parameters of each LED module at the current gray scale value are sent to the display control device 220;
the display control device 220 is configured to determine, according to the display parameters of each LED module at the current gray scale value, a correction coefficient for correcting the display of each LED module at the current gray scale value, and send the correction coefficient of each LED module at the current gray scale value to the display screen 230;
the display screen 230 is configured to correct the display parameters of each LED module when the LED module displays the current gray scale value by using the correction coefficient of each LED module.
The display screen 230 may include a controller and a display panel, the display panel is composed of a plurality of different LED modules, and the controller utilizes the correction coefficient to adjust the display of the display panel.
In an optional implementation manner, the display control device 220 is specifically configured to control the display screen to display a picture corresponding to a specified color at a current gray scale value; the brightness and chrominance acquisition device 210 is specifically configured to acquire display parameters of each LED module in the display screen when the LED module is at a current gray scale value and the display screen displays a picture corresponding to the designated color.
In an optional implementation manner, the display control device 220 is specifically configured to determine a target display parameter of the display screen at the current gray scale value according to a display parameter of each LED module at the current gray scale value; and aiming at each LED module, determining a correction coefficient for correcting the display of the LED module under the current gray-scale value according to the display parameters of the LED module under the current gray-scale value and the target display parameters of the display screen under the current gray-scale value.
In an optional implementation manner, the display control device 220 is further configured to verify whether the correction coefficient of each LED module at the current gray scale value is accurate after sending the correction coefficient of each LED module at the current gray scale value to the display screen; if so, checking whether the current gray scale value is the last unretraversed gray scale value in a preset gray scale interval range, and if not, taking the next gray scale value in the preset gray scale interval range as the current gray scale value; and if not, returning to execute the step of determining the correction coefficient for correcting the display of each LED module at the current gray-scale value according to the display parameters of each LED module at the current gray-scale value.
In an optional implementation manner, the brightness and chrominance acquisition device 210 is further configured to re-acquire display parameters of each LED module when displaying at the current gray scale value, and send the re-acquired display parameters of each LED module at the current gray scale value to the display control device 220; the display control device 220 is further specifically configured to determine a difference between a display parameter of each newly acquired LED module at the current gray scale value and a target display parameter of the display screen at the current gray scale value; if the difference value of any LED module is not within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is inaccurate; and if the difference value of each LED module is within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is accurate.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (11)
1. A display adjustment method for a display screen is characterized in that the display screen is composed of different LED modules, and the different LED modules have different color differences, and the method comprises the following steps:
collecting display parameters of each LED module when the LED module is displayed under the current gray scale value; the current gray scale value is one gray scale value in a preset gray scale interval range;
determining a correction coefficient for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value;
and adjusting the display parameters of the display screen according to the correction coefficients of the LED modules under the current gray-scale value.
2. The method of claim 1, wherein collecting display parameters of each LED module when displaying at a current gray scale value comprises:
controlling the display screen to display a picture with a specified color under the current gray scale value;
and acquiring display parameters of each LED module in the display screen under the current gray scale value and when the display screen displays the picture with the specified color.
3. The method of claim 1, wherein determining a correction factor for correcting the display of each LED module at the current gray-scale value according to the display parameters of each LED module at the current gray-scale value comprises:
determining target display parameters of the display screen under the current gray scale value according to the display parameters of the LED modules under the current gray scale value;
and aiming at each LED module, determining a correction coefficient for correcting the display of the LED module under the current gray-scale value according to the display parameters of the LED module under the current gray-scale value and the target display parameters of the display screen under the current gray-scale value.
4. The method of claim 3, wherein adjusting the display parameters of the display screen according to the correction coefficients of the LED modules at the current gray-scale value comprises:
and sending the correction coefficient of each LED module under the current gray scale value to the display screen, so that the display screen corrects the display parameters of each LED module under the current gray scale value by using the correction coefficient of each LED module.
5. The method of claim 4, wherein after sending the correction coefficient of each LED module at the current gray-scale value to the display screen, the method further comprises:
verifying whether the correction coefficient of each LED module under the current gray scale value is accurate or not;
if the current gray scale value is accurate, checking whether the current gray scale value is the last unretraversed gray scale value in the preset gray scale interval range, and if not, taking the next gray scale value in the preset gray scale interval range as the current gray scale value;
and if not, returning to execute the step of determining the correction coefficient for correcting the display of each LED module at the current gray-scale value according to the display parameters of each LED module at the current gray-scale value.
6. The method of claim 5, wherein verifying whether the correction coefficients of the LED modules at the current gray-scale value are accurate comprises:
re-collecting display parameters of each LED module when the LED module is displayed under the current gray scale value;
determining a difference value between a display parameter of each LED module under the current gray scale value and a target display parameter of the display screen under the current gray scale value;
if the difference value of any LED module is not within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is inaccurate;
and if the difference value of each LED module is within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is accurate.
7. A display screen display adjustment system is characterized by comprising brightness and chrominance acquisition equipment, display control equipment and a display screen, wherein the display screen is composed of different LED modules, and the different LED modules have different color differences;
the brightness and chrominance acquisition equipment is used for acquiring display parameters of each LED module when the LED modules are displayed under the current gray scale value; the current gray scale value is one gray scale value in a preset gray scale interval range, and the acquired display parameters of each LED module under the current gray scale value are sent to the display control equipment;
the display control equipment is used for determining correction coefficients used for correcting the display of each LED module under the current gray-scale value according to the display parameters of each LED module under the current gray-scale value, and sending the correction coefficients of each LED module under the current gray-scale value to the display screen;
and the display screen is used for correcting the display parameters of the LED modules when the LED modules are displayed under the current gray scale value by using the correction coefficients of the LED modules.
8. The system of claim 7,
the display control device is specifically configured to control the display screen to display a picture corresponding to a specified color under a current gray scale value;
the brightness and chrominance acquisition equipment is specifically used for acquiring display parameters of each LED module in the display screen under the current gray scale value and when the display screen displays the picture corresponding to the specified color.
9. The system of claim 7,
the display control equipment is specifically used for determining target display parameters of the display screen under the current gray scale value according to the display parameters of the LED modules under the current gray scale value; and aiming at each LED module, determining a correction coefficient for correcting the display of the LED module under the current gray-scale value according to the display parameters of the LED module under the current gray-scale value and the target display parameters of the display screen under the current gray-scale value.
10. The system of claim 9,
the display control equipment is also used for verifying whether the correction coefficient of each LED module under the current gray-scale value is accurate after the correction coefficient of each LED module under the current gray-scale value is sent to the display screen; if so, checking whether the current gray scale value is the last unretraversed gray scale value in a preset gray scale interval range, and if not, taking the next gray scale value in the preset gray scale interval range as the current gray scale value; and if not, returning to execute the step of determining the correction coefficient for correcting the display of each LED module at the current gray-scale value according to the display parameters of each LED module at the current gray-scale value.
11. The system of claim 10,
the brightness and chrominance acquisition equipment is also used for re-acquiring the display parameters of each LED module when the LED modules are displayed under the current gray-scale value and sending the re-acquired display parameters of each LED module under the current gray-scale value to the display control equipment;
the display control equipment is further specifically used for determining a difference value between the display parameters of the newly acquired LED modules under the current gray scale value and the target display parameters of the display screen under the current gray scale value; if the difference value of any LED module is not within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is inaccurate; and if the difference value of each LED module is within the preset error range, determining that the correction coefficient of each LED module under the current gray-scale value is accurate.
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| CN201910155993.2A CN111640391A (en) | 2019-03-01 | 2019-03-01 | Display screen display adjusting method and system |
| PCT/CN2020/076460 WO2020177566A1 (en) | 2019-03-01 | 2020-02-24 | Display adjustment method and system for display screen |
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| CN201910155993.2A CN111640391A (en) | 2019-03-01 | 2019-03-01 | Display screen display adjusting method and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763873A (en) * | 2021-09-13 | 2021-12-07 | 北京集创北方科技股份有限公司 | Correction method, system and device of LED display screen, electronic equipment and storage medium |
| CN114530119A (en) * | 2022-02-25 | 2022-05-24 | 卡莱特云科技股份有限公司 | Correction coefficient correction method, device and system based on gray scale |
| CN114694569A (en) * | 2022-03-31 | 2022-07-01 | 北京集创北方科技股份有限公司 | Chromaticity correction method and device of LED display screen and electronic equipment |
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