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A reflective polarizer‐free display using dye‐doped polymer‐stabilized blue‐phase liquid crystals
Author(s) -
Lin YiHsin,
Chen HungShan,
Chiang TsungHan
Publication year - 2012
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid20.6.333
Subject(s) - polarizer , materials science , shutter , liquid crystal , contrast ratio , absorption (acoustics) , high contrast , doping , optoelectronics , optics , liquid crystal display , polymer , phase (matter) , chemistry , physics , birefringence , organic chemistry , composite material
— A reflective polarizer‐free display using dye‐doped polymer‐stabilized blue‐phase liquid crystal (DDPSBP‐LC) has been demonstrated. The mechanism is a combination of electrically tunable light absorption and Bragg reflection. In this paper, the influence of light absorption in DDPSBP‐LC by changing the dye concentration and absorption paths has been studied. Increased dye concentration can improve the contrast ratio of DDPSBP‐LC; however, the response time is the tradeoff. Increasing the cell gap can improve the contrast ratio of DDPSBP‐LC; however, the response time remains the same. The study of DDPSBP‐LC can help in shutter‐glass applications of 3‐D displays and electronic paper.