Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
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
Hongo Mikio
Mizumura Michinobu
Okunaka Masaaki
Yamada Kaoru
Chowdhury Tarifur R.
Nguyen Hoan Chau
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