Title :
Ferroelectric liquid-crystal shutter array with poly-Si TFT driver
Author :
Okumura, Fujio ; Sera, Kenji ; Asada, Hideki ; Kaneko, Setsuo ; Ichinose, Hideo ; Naemura, Shohei ; Tanaka, Koichi ; Yokoi, Takahiro ; Tani, Chizuka
Author_Institution :
NEC Corp., Kawasaki, Japan
fDate :
9/1/1989 12:00:00 AM
Abstract :
A ferroelectric liquid-crystal (FE-LC) shutter array with a poly-Si thin-film transistor (TFT) driver that has 256 dots (300-dots/in resolution) and is 21.7 mm long is discussed. A low-temperature process and excimer laser doping process were used to reduce the device cost. Since the TFT driver is capable of driving the FE-LC in the static mode and reduces the number of outlet electrodes, this device offers the advantages of high contrast ratio (over 20:1), compact device size, and low cost
Keywords :
driver circuits; ferroelectric liquid crystals; liquid crystal displays; thin film transistors; contrast ratio; cost; device size; excimer laser doping process; ferroelectric liquid-crystal; low-temperature process; outlet electrodes; polysilicon TFT driver; shutter array; static mode; thin-film transistor; Costs; Driver circuits; Electrodes; Ferroelectric materials; Glass; Integrated circuit interconnections; Liquid crystal displays; National electric code; Switches; Thin film transistors;
Journal_Title :
Electron Devices, IEEE Transactions on
