This certificate aims to cultivate senior engineers proficient in LED display calibration operations, targeting technical support engineers, after-sales engineers, rental engineers, and practitioners with over 3 years of experience or L2 competency. Trainees are required to master calibration solutions for irregular-shaped screens, independently use industrial cameras to perform brightness and chromaticity calibration, high-precision calibration, and full grayscale calibration for COB screens, and possess basic troubleshooting skills for SMD and COB calibration. Upon certification, trainees will be capable of providing COB calibration services and irregular-shaped screen calibration services.