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Extended Jones matrix method and its application in the analysis of compensators for liquid crystal displays |
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| Authors: | C. Gu P. Yeh |
| Affiliation: | a Department of Electrical Engineering, University of California, Santa Cruz, CA 95064, USA b Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA 93106, USA |
| Abstract: | We describe an extended Jones matrix method which is a powerful tool to treat the transmission of light through birefringent networks, where the incident angle of light and the optical axis of the birefringent media are arbitrary. The method is generalized to cover all dielectric media including uniaxial and biaxial crystals and gyrotropic materials that exhibit optical rotatory power and Faraday rotation. We then apply this method to investigate various birefringent optical thin films that can be used to improve the viewing angle characteristics and gray scale stability of conventional twisted nematic liquid crystal displays (TN-LCDs). The birefringent phase retardation films include negative uniaxial, positive uniaxial and biaxial films of various orientations. The results are presented and discussed. |
| Keywords: | Liquid crystal display Compensators Extended Jones matrix Active matrix Viewing angle Gray level Contrast ratio |
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