Investigation of response time of vertically aligned in-plane-switching LCD mode

Tien-Lun Ting; Cheng-Wei Lai; Yen-Ying Kung; Cho-Yan Chen; Wen-Hao Hsu; Jenn-Jia Su

doi:10.1117/12.2077934

11 March 2015 Investigation of response time of vertically aligned in-plane-switching LCD mode

Tien-Lun Ting, Cheng-Wei Lai, Yen-Ying Kung, Cho-Yan Chen, Wen-Hao Hsu, Jenn-Jia Su

Proceedings Volume 9385, Advances in Display Technologies V; 938502 (2015) https://doi.org/10.1117/12.2077934
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

The response time of the vertically aligned in-plane-switching (VA-IPS) mode with respect to different driving voltages is studied. It is found that the rising time, T_on, is highly related to the square of the electric field between the inter-digit electrodes. Since the dielectric torque exerted on the liquid crystal molecules is proportional to the square of the electric field, one can say that it basically dominates the T_on of the VA-IPS mode. However, there’s evidence showing that the total torque perceived by the LC molecules is not simply caused by the voltage applied to the inter-digit electrodes, but also by the flexoelectricity originating from the splay deformation between the electrodes. This leads to the phenomenon that T_on doesn’t monotonically decrease with the increasing dielectric torque.

Citation Download Citation

Tien-Lun Ting, Cheng-Wei Lai, Yen-Ying Kung, Cho-Yan Chen, Wen-Hao Hsu, and Jenn-Jia Su "Investigation of response time of vertically aligned in-plane-switching LCD mode", Proc. SPIE 9385, Advances in Display Technologies V, 938502 (11 March 2015); https://doi.org/10.1117/12.2077934

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