At present, point-by-point correction has gradually become a prerequisite for the tendering of high-end projects in full-color LED screens. The technological advancement of major general control system manufacturers and the emergence of domestic professional pixel brightness acquisition equipment have also promoted the popularization and application process of point-by-point correction. Chapter 1, Frequently Asked Questions The point-by-point correction effect mentioned here is a broad category, including various corrected display quality problems that manufacturers and customers care about, not just simple comparisons of uniformity before and after correction. First of all, let's take a look at what problems may occur after the correction, as listed below: 1. The brightness of the display decreases after calibration; 2. The uniformity improvement after calibration is not ideal, especially when the display with good original uniformity is corrected; 3. After the correction, the area/box has a bright dark line or a bright dark band, which shows the edge brightness difference or chromatic aberration when the white balance is displayed. 4. After the calibration, the display shows the difference in brightness between the area/box; 5. When correcting the screen of 2R1G1B, the red correction effect is not good; 6. After the correction, the viewing angle of the display screen becomes smaller, and the degree of improvement in viewing uniformity is reduced when the viewing angle is changed and the deviation is corrected; 7. After calibration, the uniformity is deteriorated when low ash is displayed; 8. After calibration, the RGB monochrome looks good evenly, and there is a module-level severe color shift when displaying white; 9. Cold screen state acquisition, regular stripes, color patches or color casts appear when the screen temperature rises; 10. What is the maintenance time of a good uniformity effect after point-by-point correction? Bar Mat,Bar Floor Mats,Custom Bar Mat,Bar Table Mat Cixi Mingsheng Rubber & Plastic Co.,Ltd. , https://www.cixidoormats.com
Point-by-point correction is a technology that greatly improves display quality. Whether it is a manufacturer or a customer, its primary concern is undoubtedly the correction effect. However, there are still a variety of unsatisfactory aspects of the current point-by-point correction application. Through a large number of observation, communication and correction practices, the author summarizes and decomposes the common problems and their causes.