Repairing method for a liquid crystal display panel

Details Repairing method for a liquid crystal display panel Repairing method for a liquid crystal display panel

2007-07-09

2009-12-01

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Nominal manufacturing methods or post manufacturing...

Defect correction or compensation

C349S190000, C349S189000, C349S154000

Reexamination Certificate

active

07626678

ABSTRACT:
A repairing method of a liquid crystal display panel having a gravity defect includes steps of providing a first pressure to the liquid crystal display panel. Next, a second pressure is continuously provided to the liquid crystal display panel, and a section from the edge of the liquid crystal panel to the sealant is removed and forming an opening through the closed sealant frame. Then, forcing out the excess liquid crystal to flow out the panel through the cut off sections, cleaning out the excess material including LC mixture around the opening, and sealing the opening with a fresh end sealant. After that, providing a third pressure to the liquid crystal display panel, curing the end sealant to seal the opening, and then removing the third pressure. Finally, annealing the liquid crystal display panel to recover original display quality.

REFERENCES:
patent: 6844910 (2005-01-01), Katsura
patent: 7086175 (2006-08-01), Sasaki et al.
patent: 2002/0033926 (2002-03-01), Nakahara et al.
patent: 2004/0257521 (2004-12-01), Murouchi et al.
patent: 2004/0263767 (2004-12-01), Wang et al.
patent: 2005/0057716 (2005-03-01), Hou et al.
patent: 2006/0164590 (2006-07-01), Liu et al.

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