LED DISPLAY SCREEN POINT-BY-POINT CORRECTION SYSTEM AND POINT-BY-POINT CORRECTION METHOD

摘要

An LED display screen point-by-point correction system and an LED display screen point-by-point correction method employed by the system, the system comprising an LED display screen, a data acquisition unit, a correction unit, a revision unit and a video controller; the data acquisition unit is connected to the correction unit; the correction unit is connected to the LED display screen via the video controller; and the revision unit is connected to the correction unit. The method comprises: calculating a correction coefficient after the correction coefficient is ready to be calculated; then conducting the revision process, revising the calculated correction coefficient; and finally utilizing the revised correction coefficient to conduct point-by-point correction. The system of the present invention improves the chromaticity uniformity of the LED display screen, thus eliminating snowflake points and pocking marks.