Polymer-networked liquid crystal cell for omni-directional viewing-angle switching

Tae-Hoon Yoon; Jong-In Baek; Ki-Han Kim; Jae-Chang Kim

doi:10.1117/12.839926

12 February 2010 Polymer-networked liquid crystal cell for omni-directional viewing-angle switching

Tae-Hoon Yoon, Jong-In Baek, Ki-Han Kim, Jae-Chang Kim

Proceedings Volume 7618, Emerging Liquid Crystal Technologies V; 76180U (2010) https://doi.org/10.1117/12.839926
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

A novel method for switching the viewing-angle of a liquid crystal display is proposed by using a polymernetworked liquid crystal cell in combination with a collimated backlight system. The bright state for a wide viewing-angle is obtained aligning liquid crystals randomly in polymer-networked structure, which diffuses a collimated backlight. The liquid crystals homogeneous-aligned by in-plane switching are operated as the bright state for a narrow viewing-angle since a collimated backlight passes through the liquid crystal layer intactly. It is demonstrated experimentally that the viewing-angle can be controlled omni-directionally without an additional panel or an additional backlight system.

Citation Download Citation

Tae-Hoon Yoon, Jong-In Baek, Ki-Han Kim, and Jae-Chang Kim "Polymer-networked liquid crystal cell for omni-directional viewing-angle switching", Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, 76180U (12 February 2010); https://doi.org/10.1117/12.839926

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