光谱学与光谱分析 |
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Analysis of LCD Aging with Polarized Optical Texture and Transmission Spectrum |
HUANG Chong, ZHOU Xue-ping, LIU Ji, OUYANG Yan-dong |
Department of Physics, Shantou University, Shantou 515063, China |
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Abstract Light radiation experiment was done to a group of liquid crystal display devices, and the influence of light radiation on the display quality of liquid crystal display devices was studied. The changes in their polarized textures after light radiation were observed with a polarized optical microscope. Parallel stripe texture and black holes, which lost extinction function, appeared in liquid crystal texture. With the increase of light radiation time, more and more black holes result, and the area of black holes gets bigger and bigger. The authors tested the transmission spectrum with computer-controlled ultraviolet/visible light spectrometer, finding that the transmission rate declines with the increase of light radiation time. The results show that the appearance of stripe texture and black holes resulted from the changes in liquid crystal molecular structure after ultraviolet radiation, and the occurrence of black holes, which lost extinction function, is the main reason for the continuous decline of transmission rate.
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Received: 2005-10-08
Accepted: 2006-02-16
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Corresponding Authors:
HUANG Chong
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Cite this article: |
HUANG Chong,ZHOU Xue-ping,LIU Ji, et al. Analysis of LCD Aging with Polarized Optical Texture and Transmission Spectrum [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(08): 1419-1422.
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https://www.gpxygpfx.com/EN/Y2006/V26/I08/1419 |
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