Wide viewing angle and fast responding TN LCD

Chandrasekhar, S. ; Raja, V. N. ; Krishna Prasad, S. ; Shankar Rao, D. S. (2004) Wide viewing angle and fast responding TN LCD Molecular Crystals and Liquid Crystals, 410 . pp. 359-368. ISSN 1058-725X

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Official URL: http://www.informaworld.com/smpp/content~db=all~co...

Related URL: http://dx.doi.org/10.1080/15421400490433163


A new type of TN display device has been fabricated by sandwiching a dual frequency addressable nematic liquid crystal material between two unrubbed polyimide coated glass plates. Between crossed polarizers, the bright state is observed by applying a high frequency electric field, while the dark state by applying a low frequency electric field of similar strength. This dual frequency addressed rubbing free device shows very wide and highly symmetric viewing angle characteristics, with contrast ratio comparable to that of a rubbed TN device, and with very fast response time. Addressing the device in a "dual frequency dual amplitude pulsed mode" leads to only a small increase (~1.5 times) in power consumption in comparison with the conventional single frequency addressed device.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
Keywords:Fast Responding; Tn Lcd; Wide Viewing Angle
ID Code:7921
Deposited On:25 Oct 2010 09:11
Last Modified:16 May 2016 18:01

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