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http://dx.doi.org/10.3807/JOSK.2012.16.2.170

Formation of Dual Threshold in a Vertical Alignment Liquid Crystal Device  

Choi, Sun-Wook (Department of Electronics Engineering, Pusan National University)
Jin, Huilian (Department of Electronics Engineering, Pusan National University)
Kim, Ki-Han (Department of Electronics Engineering, Pusan National University)
Lee, Ji-Hoon (Department of Electronics Engineering, Pusan National University)
Kim, Hoon (Samsung Display Co. Ltd.)
Shin, Ki-Chul (Samsung Display Co. Ltd.)
Kim, Hee Seop (Samsung Display Co. Ltd.)
Yoon, Tae-Hoon (Department of Electronics Engineering, Pusan National University)
Publication Information
Journal of the Optical Society of Korea / v.16, no.2, 2012 , pp. 170-173 More about this Journal
Abstract
We present a method that enables dual threshold voltages in a vertical alignment liquid crystal device, through which the gamma shift can be reduced with no subsequent decrease in the contrast ratio. By forming polymer layers, the threshold voltage shift is accomplished through the utilization of the voltage drop effect. We expect that the proposed method can be applied to the conventional 4-domain mode in order to achieve an 8-domain mode without the need for complex driving schemes.
Keywords
Liquid crystal; Vertical alignment; Gamma shift; Threshold voltage;
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