Title :
In situ measurement and binning system of LED for improved color consistency
Author :
Zhou, Shengjun ; Liu, Sheng
Author_Institution :
Res. Inst. of Micro/Nano Sci. & Technol., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
Development and application of LED in situ measurement and binning system are proposed and demonstrated. In this system, the photometric and colorimetric properties of LED can be measured in a matter of milliseconds, and the measured LED can be binned to a specific bin based on color, intensity, and forward voltage. An algorithm is designed to deal with the determination of dominant wavelength of LED with a resolution of 0.1nm. The described technique can bin LEDs into groupings of uniform and reproducible parameter, and improve color consistency.
Keywords :
colorimetry; light emitting diodes; photometry; LED; binning system; color consistency; colorimetric properties; dominant wavelength; in situ measurement; photometric properties; Arrays; Charge coupled devices; Color; Detectors; Humans; Light emitting diodes; Wavelength measurement;
Conference_Titel :
Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), 2011 12th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-1770-3
Electronic_ISBN :
978-1-4577-1768-0
DOI :
10.1109/ICEPT.2011.6066951
