Title :
Response time and contrast ratio of ferroelectric liquid crystal cells
Author :
Wysocki, J.J. ; Hark, Sui Kong ; Hull, V. Joseph
Author_Institution :
Xerox Corp., Webster, NY, USA
Abstract :
The response time and contrast ratio of ferroelectric liquid crystals with positive and negative dielectric anisotropy were examined. The behavior observed after an isotropic anneal depended on the application of a high field. Before application, anomalous regions were observed which vanished after the application of a high field. Contrast ratio changes were observed, caused by the generation and annihilation of defects. Surfaces and structural changes appear to be involved in both the response-time and contrast-ratio behavior.<>
Keywords :
ferroelectric liquid crystals; liquid crystal displays; LCD; annihilation; contrast ratio; ferroelectric liquid crystal cells; isotropic anneal; negative dielectric anisotropy; positive dielectric anisotropy; response time; structural changes; Anisotropic magnetoresistance; Annealing; Crystalline materials; Delay; Ferroelectric materials; Liquid crystal devices; Liquid crystal displays; Liquid crystals; Optical polarization; Voltage;
Conference_Titel :
Display Research Conference, 1988., Conference Record of the 1988 International
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/DISPL.1988.11285
