Method to Reduce the Uncertainty of Display Specular Reflectance Measurement Based on Measurement System Analysis
According to the specular reflectance test method stipulated in 4.3.6.2 of Photometric and Chromaticity Measurement Procedures for Airborne Electronic Flat Panel Displays(SAE ARP4260B-2019),the specular reflectance test system was constructed and the mathematical model for the uncertainty assessment of the specular reflectance measurement results was constructed and the uncertainty assessment of the constructed specular reflectance test system was carried out in accordance with Measurement Uncertainty Assessment and Representation(JJF 1059.1-2012).By analyzing the specular reflectance measurement system,the sources of the deviation of the measurement results caused by repeatability and reproducibility were studied in depth,and the improvement countermeasures are formulated and implemented in order to reduce the class A measurement uncertainty and thus reduce the synthetic standard uncertainty of the measurement system.After the improvement,the synthetic standard uncertainty of the reflectance test was reduced by about 14.29％compared to the pre-improvement level,which proves the reasonableness and effectiveness of the improvement countermeasures formulated in the measurement system analysis.In addition,the preference matrix,factor screening method and improvement measures used in the typical application cases provide a certain guiding basis for further improving the accuracy and reliability of the optical test results of other display products in the future.
specular reflectanceuncertainty of measurementmeasurement systems analysisrepeatabilityreproducibility
万方数据
维普
