Abstract:
Color analyzers (color luminance meters) are widely employed in brightness and chromaticity measurements on display production lines due to their low cost, simple structure, stable performance, and capability for rapid measurements. However, color analyzers inherently suffer from spectral mismatch issues. Additionally, the adoption of appropriate calibration methods and the correct selection of standard reference devices significantly impact the accuracy of measurement results. This paper evaluates and compares the applicability and accuracy of the single-point calibration method and the four-color matrix calibration method for calibrating display-used color analyzers. The results demonstrate that the four-color matrix calibration method is more suitable for calibrating color analyzers used in display applications. This study provides valuable insights for improving calibration techniques, thereby enhancing the precision and reliability of color measurements in display manufacturing processes.