Characterization of edge effects in twisted nematic liquid crystal displays

We present a model to more accurately describe the optical properties of a twisted nematic liquid crystal display (LCD). In particular, we study the optical properties of molecules near either edge of the LCD that are unable to twist and tilt under the application of an external elec- tric field. The properties of these layers can be deduced from the inten- sity transmittances measured using different configurations of the exter- nal linear polarizers. The agreement between the theoretical and the experimental transmittances is excellent, thus enabling the prediction of the actual modulation for any configuration of the polarizers. © 2000 So- ciety of Photo-Optical Instrumentation Engineers. (S0091-3286(00)01412-4)

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