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Calibration method, device and system for display module, method and device for display calibration

A technology of display module and calibration method, which is applied to static indicators, instruments, etc., can solve the problems of inconsistent display uniformity, low gray LED display, etc., achieve good display uniformity, improve calibration efficiency, and reduce the number of image acquisitions.

Active Publication Date: 2022-03-22
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing LED display calibration is difficult to solve the problem of inconsistency in the display uniformity of the low-gray LED display, or even the entire gray stage.

Method used

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  • Calibration method, device and system for display module, method and device for display calibration
  • Calibration method, device and system for display module, method and device for display calibration
  • Calibration method, device and system for display module, method and device for display calibration

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no. 1 example

[0043] Such as figure 1 As shown, a display module calibration method provided by the first embodiment of the present invention includes steps:

[0044] S11: Control a plurality of unit blocks of the display module to be corrected to display a plurality of correction images under the first gray scale by lighting up spacers, wherein each of the unit blocks includes a plurality of pixel points, and the spacer points are The brightening method includes: for any correction image in the plurality of correction images, control to light up a unit block at a specified position in the plurality of unit blocks but not control to turn on the unit block in the plurality of unit blocks that is adjacent to the unit block. Multiple surrounding location unit blocks adjacent to the specified location unit block;

[0045] S13: Control the image acquisition device to acquire the plurality of correction images in the first gray scale, so as to obtain the first color data of the display module to...

no. 2 example

[0095] see Figure 5 , a display module calibration device 40 provided by the second embodiment of the present invention includes: a display control module 41 , an acquisition control module 43 , a data calculation module 45 and a correction data generation module 47 .

[0096] Wherein, the display control module 41 is, for example, used to control a plurality of unit blocks of the display module to be calibrated to display a plurality of correction images under the first gray scale in the manner of lighting up each block, wherein each of the unit blocks includes a plurality of pixels, and the way of lighting up the spacer blocks includes: for any correction image in the plurality of correction images, control to light up the unit block at a specified position in the plurality of unit blocks but not control to light up all the unit blocks A plurality of peripheral position unit blocks adjacent to the specified position unit block among the plurality of unit blocks; the acquisi...

no. 3 example

[0108] see Figure 8 , the third embodiment of the present invention also provides a display module calibration system 70, including: a processor 71 and a memory 73 electrically connected to the processor 71; instructions, and the instructions, for example, cause the processor 71 to perform operations to perform the display module calibration method described in the aforementioned first embodiment.

[0109] In addition, other embodiments of the present invention also provide a computer-readable storage medium, which is a non-volatile memory and stores program codes. When the program codes are executed by one or more processors, for example, the One or more processors execute the display module calibration method described in the aforementioned first embodiment.

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Abstract

The embodiments of the present invention relate to a display module calibration method, device and system. The method includes, for example: i) controlling a plurality of unit blocks of the display module to be calibrated to display a plurality of calibration images in the first gray scale by lighting up the blocks; ii) controlling an image acquisition device to acquire the plurality of calibration images. image, to obtain the first color data under the first gray scale; iii) calculate the color data of the display module to be corrected under at least one second gray scale according to the first color data and at least one color difference set, so as to obtain at least one second color data; and iv) generating a plurality of correction data under a plurality of different grayscales according to the first color data, the at least one second color data and the set correction target values, so as to obtain corresponding Calibrate the multi-grayscale calibration data of the display module. The embodiment of the present invention can achieve the technical effect of better display uniformity under different gray scales. In addition, the embodiments of the present invention also relate to a method and device for calibrating a display screen.

Description

technical field [0001] The present invention relates to the technical field of display calibration, in particular to a display module calibration method, a display module calibration device, a display module calibration system, a display screen calibration method and a display screen calibration device. Background technique [0002] With the development of the LED industry, users have higher and higher requirements for the display quality of the LED display screen in the low gray, or even the entire gray stage (or full gray stage), such as 0-255 grayscale display consistent color temperature, grayscale gradient Smooth, high-gray and low-gray displays are uniform, etc. The problem of color temperature and grayscale gradient requires more grayscales to complete the processing, and the LED display screen needs to be corrected for display uniformity. The existing LED display calibration method is to collect the brightness and chromaticity data of the highest gray scale of red, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/0271
Inventor 殷雷韦桂锋
Owner XIAN NOVASTAR TECH
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