Liquid crystal image display apparatus with anodized films of th

Details Liquid crystal image display apparatus with anodized films of th Liquid crystal image display apparatus with anodized films of th

1993-06-01

1995-05-23

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 59, G02F 11333, G02F 11343

Patent

active

054186366

ABSTRACT:
A liquid crystal image display device is disclosed of a type comprising a first transparent insulating substrate having a plurality of scanning line, a plurality of signal lines and an insulated-gate transistor for each pixel and a pixel electrode for each pixel, a second transparent insulating substrate having a transparent electroconductive counterelectrode and positioned spaced a predetermined distance from the first substrate to define a chamber therebetween, and a liquid crystal material filled in the chamber. When a drain wiring connecting a drain of the insulated-gate transistor with the associated pixel electrode and each of said signal lines are formed, a connecting layer that connects between the drain wiring and the associated signal line is formed, followed by depositing a metallic layer, containing aluminum as a main component, over the connecting layer. Thereafter, the signal line and the drain wiring are selectively formed, followed by formation of a protective layer for protecting the connecting layer from anodization. After surfaces of the signal line and the drain wiring have been anodized to render them to be insulating, the protective layer is removed to disconnect the signal line from the drain wiring.

REFERENCES:
patent: 4778258 (1988-10-01), Parks et al.
patent: 4889411 (1989-12-01), Parks et al.
patent: 5054887 (1991-10-01), Kato et al.
patent: 5124823 (1992-06-01), Kawasaki et al.
patent: 5162901 (1992-11-01), Shimada et al.
patent: 5187602 (1993-02-01), Ikeda et al.

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