GB/T 44390-2024 《Print display—Measuring method of film uniformity》 Related products

The "GB/T 44390-2024 Test Method for Uniformity of Printed Display Films" standard details the test method for uniformity of printed display films, including lid pixel uniformity, adjacent sub-pixel uniformity and short-range uniformity. The standard is applicable to printed display films with a thickness range of 5 nm to 100 nm, using probe-type Surface Profile Gauge (step meter) and white light interferometer for measurement. During the test, the step meter scans the surface of the sample to obtain the contour information of the film, and then calculates the uniformity. The standard specifies the environmental conditions of the test, instrument requirements, sample pretreatment and software settings, etc., to ensure the accuracy and Repeatability of the test results. This standard provides an important quality control basis for the printing and display industry, which helps to improve the conformity and performance of products.