Display Test

From high-speed, automated inspection systems for quality control the production line, to high-precision solutions for R&D, Radiant‘s expertise in display test is unmatched. World leaders rely on Radiant display test and measurement solutions to improve supply chain performance, reduce production costs, and ensure a high-quality end product. Our automated visual inspection systems accommodate multiple screen sizes and technologies, including LCD, OLED, and projection. Systems can be implemented throughout the display manufacture process to test display quality every step of the way for fully automated quality control.

Uniformity Testing for BLUs

Light leakage and non-uniformity in LCD and LED backlight units (BLUs) can render the performance of the assembled flat panel display unacceptable. Testing for these conditions by human eye is inaccurate and not repeatable. Using spot measurement devices provides insufficient information with unacceptably long cycle times. Radiant’s TrueTest™ Software comes with a library of predefined tests, including brightness and color uniformity, chromaticity, and contrast in flat panel display inspection - to ensure that every BLU meets your performance standards.


Detection of Foreign Material

For suppliers of glass, film and other sub-assemblies, early identification of defects with imaging colorimeters reduces overall production costs by preventing additional costs from being added to flawed assemblies. Detection of foreign material, including dirt or fibers, can be done at key points in the process to avoid locking in these defects. Unlike human inspection, a Radiant system can repeatably find and size significant small defects instantaneously, regardless of their location.

Light Leakage

Light leakage is a common problem in LCD modules, which can result from the manufacture process or faulty sub-components. Radiant’s TrueTest systems detect and classify light leakage problems before products leave the factory. This proven technology gives repeatable and accurate results across production lines at different manufacturing locations.


Quality Inspection of Consumer Electronics

Makers of smartphones, tablets, and other display devices rely on Radiant to ensure a perfect end-user experience. An automated visual inspection system comprised of TrueTest Software and a ProMetric® Imaging Colorimeter enables manufacturers to test display quality and identify defects with greater accuracy, efficiency, and thoroughness than manual inspection methods. Users can tailor pass/fail criteria to address their individual quality concerns, including line and pixel defects, light leakage, non-uniformity, and mura detection.


Quality Inspection and Defect Detection in Specialized Displays

Integrators of specialized displays for the automotive, aerospace, medical, and other industries need accurate quality inspection solutions to ensure consistent display performance in any environment. Radiant’s integrated inspection solutions allow manufacturers to focus on their total product, rather than the display alone, and rely on Radiant to apply our expertise in display test for easy measurement and control of light, color, contrast, and angle in changing lighting conditions.


Display Test

Light Measurement

Visual Surface Inspection

Keyboard Inspection