Liquid crystal display having patterned insulating and semicondu

Details Liquid crystal display having patterned insulating and semicondu Liquid crystal display having patterned insulating and semicondu

1994-06-07

1996-07-30

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 58, 359 79, 359 87, G02F 11343, G02F 11333

Patent

active

055417485

ABSTRACT:
A liquid crystal display provided with a matrix of inverted-stagger thin-film transistors has a plurality of gate insulating films formed over gate lines and including one insulating film formed in contact with gate electrodes of the thin-film transistors and in self-alignment with gate lines in the picture display area of the liquid crystal display. The rest of the gate insulating films not crossing the gate electrodes and in contact with a semiconductor layer are patterned in conformity with drain electrodes (data lines), and a semiconductor layer and an insulating film not crossing the drain electrode and crossing the gate electrodes are patterned at the same time. The method has less steps than the conventional method, is capable of fabricating a liquid crystal display capable of displaying pictures in a high picture quality at a high yield rate.

REFERENCES:
patent: 5032531 (1991-07-01), Tsutsui et al.
patent: 5055899 (1991-10-01), Wakai et al.
patent: 5187602 (1993-02-01), Ikeda et al.

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