Premium
Electro‐optical properties of a twisted hybrid aligned nematic mode for reflective liquid crystal displays
Author(s) -
Kim Young Jin,
Park SoonMo,
Lee SinDoo
Publication year - 1999
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 - 10.1889/1.1985278
Subject(s) - polarizer , liquid crystal , materials science , optics , optoelectronics , liquid crystal display , twist , mode (computer interface) , electrode , physics , computer science , birefringence , geometry , mathematics , quantum mechanics , operating system
— A twisted hybrid aligned (THA) mode is proposed for reflective liquid‐crystal displays. In the reflective configuration, a single polarizer and a reflective electrode are used to achieve electrooptical switching between the black and white states in the THA mode of a chiral nematic liquid crystal. Numerical simulations are performed to optimize the cell parameters such as the cell thickness and the amount of the twist in the hybrid geometry. The reflective THA mode is found to give wider viewing and faster response characteristics than a twisted nematic one. The role of an optical retardation film on device performance of such a reflective THA cell is also discussed.