Active matrix liquid crystal device with opposite substrate havi

Details Active matrix liquid crystal device with opposite substrate havi Active matrix liquid crystal device with opposite substrate havi

1993-11-01

1996-04-23

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 59, G02F 1133, G02F 11343

Patent

active

055109160

ABSTRACT:
In an active matrix liquid crystal device assuming a light blocking condition when a voltage is applied, there are provided a main plate formed with a pixel electrode, wiring electrodes and a switching transistor, an opposing plate formed with an opposing electrode, and a liquid crystal material sandwiched between the main plate and the opposing plate, so that a transmission light is irradiated from the main plate side. A light blocking layer acting also as a storage capacitor electrode is provided on the main plate through an insulating layer under the wiring electrode, the switching device and a periphery of the pixel electrode. Thus, it is to prevent light leakage at a boundary of a pixel, and to simultaneously suppress and conceal an orientation abnormality of the liquid crystal occurring at a periphery of the pixel electrode.

REFERENCES:
patent: 4733948 (1988-03-01), Kitahara
patent: 4759610 (1988-07-01), Yanagisawa
patent: 4789223 (1988-12-01), Kasahara et al.
patent: 5299041 (1994-03-01), Morin et al.
patent: 5339181 (1994-08-01), Kim et al.
JM. Vignolle et al., "Optimisation of Very Small Pitch Active Matrix LCD for Projection", 1991 International Display Research Conference, (91CH3091-8) pp. 223-226.
Patent Abstracts of Japan, vol. 010, No. 068, Mar. 18, 1986 (JPA 60-207116).
Patent Abstracts of Japan, vol. 017, No. 175, Apr. 5, 1993, (JPA 04-331924).
M. Tsumura et al., "High-Resolution 10.3-in. Diagonal Multicolor TFT-LCD", SID International Symposium--Digest of Technical Papers, 1991, Playa Del Rey, pp. 215-218.

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