Liquid crystal display element and method for treating defective

Details Liquid crystal display element and method for treating defective Liquid crystal display element and method for treating defective

1991-05-06

1992-06-09

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 87, 357 237, G02F 11343

Patent

active

051212366

ABSTRACT:
In an active liquid crystal display element which operates in a normally white mode, there is formed a shorting metal layer which overlaps each pixel electrode and a source bus adjacent thereto. In those portions of the pixel electrode and the source bus overlapping the shorting metal layer there are formed weld metal layers. The pixel electrode of a defective pixel is connected to the corresponding source bus by welding the weld metal layers and the shorting metal layer through irradiation with laser beams to the above-mentioned overlapping portions. As a result of this, the defective pixel becomes a black defect when the liquid crystal display element operates.

REFERENCES:
patent: 4368523 (1983-01-01), Kawate
patent: 4630893 (1986-12-01), Credelle et al.
patent: 4666252 (1987-05-01), Yaniu et al.
patent: 4761058 (1988-08-01), Okubo et al.
patent: 4890097 (1989-12-01), Yamashita et al.
patent: 4936656 (1990-06-01), Yamashita et al.

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