Flat panel display unit and method of repairing defects in...

Details Flat panel display unit and method of repairing defects in... Flat panel display unit and method of repairing defects in...

2005-08-30

2005-08-30

Chowdhury, Tarifur R. (Department: 2871)

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

C349S192000, C349S139000

Reexamination Certificate

active

06937296

ABSTRACT:
Shorting defects between the scan lines and signal lines are repaired during the manufacture of a TFT or other flat panel display unit without causing liquid crystal orientation defects and production yield is thereby improved. In a TFT panel in which scan line2bifurcates where scan line2and signal line3intersect, the lines having a protective insulation film8therebetween, one leg of the scan line2bifurcation is cut by a laser9where a short7has been found between lines at the intersection, thereby electrically separating the short. An insulation film material13dispensed from a glass pipette12is then applied locally to the cut part and surrounding area and cured to form a new insulation film.

REFERENCES:
patent: 5303074 (1994-04-01), Salisbury
patent: 5801965 (1998-09-01), Takagi et al.
patent: 2001/0035920 (2001-11-01), Choi
patent: 363150675 (1988-06-01), None

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