LED display automatic calibration method

Abstract

The invention provides an automatic LED (light-emitting diode) display screen correction method. The automatic correction method comprises the following steps: (1) network connection is established; (2) an A end sends a display instruction to a B end, the B end controls the full-screen or the specific sub-area of the LED display screen to display the image; (3) the A end controls image acquisition equipment to aim at a to-be-corrected area of the LED display screen, acquires the image data and uploads the image data to the A end for analysis and process to generate correction coefficients, a controller of the B end sends the correction coefficients to a receiving card of the LED display screen, so that the LED display screen displays the corrected full-screen or specific-area image; and (5) the image acquisition equipment acquires the image in the to-be-corrected area again, the A end analyzes point-to-point brightness, judges whether the correction effect is satisfied. By using the correction method, the correction accuracy is increased, the labor intensity is saved, and the correction time is shortened effectively.

Description

technical field [0001] The invention relates to the field of point-by-point correction of LED display screens, in particular to a method for correcting LED display screens. Background technique [0002] The point-by-point correction function of the LED display plays an important role in the later maintenance of the LED display, which can significantly improve the brightness and chromaticity uniformity of the display. In the calibration process of the LED display, because there are many links involved, a lot of information interaction and cooperative operations are required. The entire process will require at least 2 or more staff to complete the calibration work. [0003] In general, calibration can be divided into 3 steps: [0004] Use the image acquisition device to measure the designated area of ​​the LED display. In this link, an engineer needs to operate in the control room, connect the controller through the computer-side control software, and let the LED display dis...

AI Technical Summary

Problems solved by technology

The traditional calibration process is very complicated, requiring a lot of operations between each link, and if one of the steps is misoperated, the calibration work will not be completed

Therefore, the traditional correction method has too many operating links, high error rate, and requires long-term information exchange between different personnel, which may cause misunderstanding and misjudgment, and requires a lot of repeated communication, resulting in waste of human resources and poor correction efficiency. lower

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