A point-by-point correction method, device, system and storage medium for an LED display

Abstract

The present invention relates to a point-by-point correction method, device, system and storage medium of an LED display screen. The point-by-point correction method of an LED display screen includes obtaining a three-color and three-stimulus value matrix of an LED display screen as a target value for conversion of correction data; LED display module, and read back the three-color tri-stimulus value matrix of the module point-by-point chromaticity correction; according to the three-color tri-stimulus value matrix of the LED display screen and the three-color tri-stimulus value matrix, calculate the correction data change matrix T; according to T and the correction data matrix of each pixel on the new LED display module, calculate and obtain the changed correction data matrix of each pixel; use to obtain After the change, the correction coefficient matrix performs point-by-point chromaticity correction for each pixel on the replaced LED module, which greatly improves the brightness, chromaticity, and uniformity of the LED display, making the system run faster and safer .

Description

Technical field[0001]The present invention relates to the technical field of LED display correction, in particular to a point-by-point correction method, device, system and storage medium of an LED display screen.Background technique[0002]In the modern business environment, the LED display industry is developing rapidly. The LED display is a flat panel display device composed of LED dot matrix. Compared with other traditional information media, it has the advantages of adjustable brightness range, safety and reliability, energy saving and environmental protection, accurate color expression, and clear visual expression. With the gradual improvement of the brightness of the LED display screen, the light density and adaptability are also stronger, the display quality is rapidly improving.[0003]The existing point-by-point correction technology collects the brightness and chromaticity data of each LED light point on the LED display screen, calculates the correction coefficient for each L...

AI Technical Summary

Problems solved by technology

For a long time, the brightness, chromaticity, and uniformity of LED displays have been affected by factors such as lamp beads, welding, structural design, heat dissipation, and brightness of LED displays, which have seriously plagued the development of the industry.

When correcting point by point, it is necessary to select a correction target value. The deviation of this value will cause chromatic aberration, and the visual effect is obviously not good

At this time, it is necessary to change the calibration target value and recalculate the calibration coefficient, resulting in an increase in the number of calculations

At the same time, due to the sharp increase in the number of LED pixels on the LED display, the calculation of the original brightness and chromaticity of the LED light points has increased sharply, which seriously affects the operating speed and safety of the system. A more scientific LED display point-by-point correction method, device, and system are needed. and machine-readable storage media

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