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17.3L: Late‐News Paper : Enhancing the Contrast Ratio of Blue Phase LCDs
Author(s) -
Liu Yifan,
Lan Yifen,
Zhang Hongxia,
Zhu Ruidong,
Xu Daming,
Tsai ChengYeh,
Lu JenKuei,
Sugiura Norio,
Lin YuChieh,
Wu ShinTson
Publication year - 2013
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2013.tb06175.x
Subject(s) - polarizer , isotropy , contrast ratio , optics , polarization (electrochemistry) , contrast (vision) , high contrast , spectrum analyzer , materials science , twist , optical rotation , liquid crystal , phase contrast microscopy , phase (matter) , physics , chemistry , birefringence , geometry , mathematics , quantum mechanics
Experimental evidence proves that polymer‐stabilized blue phase liquid crystal is not perfectly optically isotropic. The optical rotatory power (ORP) of double twist cylinders causes the polarization axis of the transmitted light to rotate a small angle, and leaks through the crossed polarizers. Rotating the analyzer by ∼2 o to correct this ORP can improve the contrast ratio by 3X .