Title :
Ferroelectric liquid-crystal video display
Author :
Hartmann, W. M J A
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
fDate :
9/1/1989 12:00:00 AM
Abstract :
Although the surface stabilized ferroelectric liquid-crystal (SSFLC) effect is bistable, the possibility of creating a wide range of grayscales based on the multidomain structure is demonstrated. An active-matrix-addressed SSFLC black-and-white television display was realized, proving the grayscale capability. The active-matrix-addressed liquid-crystal TV based on the SSFLC effect shows a superior optical performance compared to the twisted nematic liquid-crystal TV. Its high contrast is almost viewing angle independent; switching speed is high, and flicker is absent. The disadvantages lie in the more difficult technology (cell thickness, SSFLC orientation, high-temperature liquid-crystal handling shock-sensitivity)
Keywords :
ferroelectric liquid crystals; liquid crystal displays; television equipment; SSFLC; active-matrix-addressed; black-and-white television display; cell thickness; contrast; flicker; grayscales; high-temperature liquid-crystal handling; multidomain structure; shock-sensitivity; surface stabilized ferroelectric liquid-crystal; switching speed; viewing angle; Active matrix addressing; Active matrix liquid crystal displays; Blanking; Delay; Ferroelectric materials; Liquid crystal displays; Liquid crystals; Switches; TV; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on