High contrast polymer-dispersed liquid crystal in a 90° twisted cell

Yi-Hsin Lin; Hongwen Ren; Shin-Tson Wu
May 2004
Applied Physics Letters;5/17/2004, Vol. 84 Issue 20, p4083
Academic Journal
A polymer-dispersed liquid crystal confined in a 90° twisted cell (T-PDLC) is demonstrated. In comparison to a conventional PDLC, the T-PDLC is also polarization independent while exhibiting a higher contrast ratio. Potential applications of the T-PDLC are in polarizer-free reflective display and light switch. A black and white segmented-alphabet reflective display using a dye-doped T-PDLC is demonstrated.


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