[OPTICAL REVIEW Vol. 9, No. 5 (2002) 207-212]

Numerical Modeling and Simulation of a Cholesteric Liquid Crystal Polarizer

Jong Rak PARK*, Gihan RYU, Jeongil BYUN, Heenam HWANG, Sung Tae KIM and Insun KIM

LG Cable Co., Ltd., 555 Hogye-Dong, Dongan-Gu, Anyang, Kyunggi-Do 431-080, Korea

(Received April 16, 2002; Accepted July 8, 2002)

A numerical model based on Berreman's 4× 4 matrix approach was developed and used for computational simulation of a cholesteric liquid crystal (CLC) polarizer. Explicit expressions of the 4× 4 propagation matrices for several optical films, which constitute a CLC polarizer, were presented. Numerical simulations for optical properties of a CLC layer, a linear polarizer and a CLC polarizer were executed, and the simulated results were found to be in fairly good agreement with measured results.

Key words: liquid crystal, cholesteric liquid crystal, polarizer, LCD, Berreman's 4× 4 matrix approach