Precise prediction of optical responses of liquid-crystal display products using a behavioral model of liquid crystal

Chansoo Park; Youngmin Cho; Jong-Man Kim; Jongbin Kim; Seung-Woo Lee

doi:10.1117/1.OE.51.1.014002

6 February 2012 Precise prediction of optical responses of liquid-crystal display products using a behavioral model of liquid crystal

Chansoo Park, Youngmin Cho, Jong-Man Kim, Jongbin Kim, Seung-Woo Lee

Author Affiliations +

Funded by: National Research Foundation of Korea

Optical Engineering, Vol. 51, Issue 1, 014002 (February 2012). https://doi.org/10.1117/1.OE.51.1.014002

Abstract

We propose a precise circuit model to estimate transient optical responses of an active-matrix liquid crystal display (AMLCD). Liquid crystal (LC) molecules in the pixel is behaviorally modeled by using the first-order system that is described by Verilog-A. Capacitance-voltage (C-V) characteristics of a pixel determine the accuracy of the dynamic responses. Measuring C-V characteristics is impossible because pixels are driven by switching transistors in the AMLCD. We propose a method to obtain the C-V data from natural optical responses. Estimated optical responses based on the C-V data extracted by our proposal show more accurate results than those based on C-V data obtained by using transmittance-voltage data. It is demonstrated that our behavioral model enables us to predict very accurate transient responses, which makes it possible to design LCD products with lower costs.

Citation Download Citation

Chansoo Park, Youngmin Cho, Jong-Man Kim, Jongbin Kim, and Seung-Woo Lee "Precise prediction of optical responses of liquid-crystal display products using a behavioral model of liquid crystal," Optical Engineering 51(1), 014002 (6 February 2012). https://doi.org/10.1117/1.OE.51.1.014002

Published: 6 February 2012

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