Triode optical gate: A new liquid crystal electro-optic device

Abstract

A new liquid crystal field effect electro-optic device is described. Light transmission induced by voltage pulses across two electrodes is modulated or gated by voltage on a third electrode. The three-terminal gating characteristics are applicable to scanning and multiplexing arrays of devices for displays or light valves. A novel enhancement mode is also demonstrated.

Superfast Low-Temperature Switching of Nematic Liquid Crystals Using Quasi-Impulsive Driving and Overdrive

“…However, the LCDs exhibit very slow response at low temperatures, which makes it difficult to use LCDs in low-temperature outdoor environments. Although previous works using three-terminal electrodes have reduced the switching time of nematic LCs at room temperature, their performance at a low temperature has not been demonstrated yet [12][13][14][15][16][17].…”

A Fringe Field Switching Liquid Crystal Display With Fast Grayscale Response Time

“…The electric potential of floated top pixel electrodes are spontaneously determined by the restoring voltage [23]. The in-plane field generated by this restoring voltage would exert a strong torque to pull the LC directors back to their initial rubbing direction in addition to the existing elastic restoring torque [24]- [27]. Hence, the decay process is accelerated and faster decay time is obtained.…”

Fast gray-to-gray switching of a hybrid-aligned liquid crystal cell

“…Thus, there is an urgent need to study a method for fast GTG switching of a LC cell to solve the above mentioned problems. To reduce the response time of LCs, various methods, such as overdrive/undershoot drive scheme [5,6], a thin cell gap [7], optimization of the LC materials [8], and three-terminal electrode structures [9][10][11][12][13][14][15][16][17] have been proposed. However, all these methods still require a further improvement.…”