Liquid crystal display having a defect repair mechanism...

Details Liquid crystal display having a defect repair mechanism... Liquid crystal display having a defect repair mechanism...

2007-05-04

2009-11-03

Schechter, Andrew (Department: 2881)

Liquid crystal cells, elements and systems

Nominal manufacturing methods or post manufacturing...

Defect correction or compensation

C349S038000, C349S039000, C349S042000, C349S044000, C349S054000, C349S055000, C349S111000

Reexamination Certificate

active

07612863

ABSTRACT:
A liquid crystal display that is subject to pixel-high defects due to manufacturing anomalies is provided with programmable repair means for each pixel electrode. In one embodiment, a transistor-array substrate is provided with plural gate lines that are separated from each other by a first interval, plural data lines that are insulated from the gate lines while crossing the gate lines, and separated from each other by a second interval larger than the first interval, thereby defining plural pixel areas. Each pixel area has a corresponding pixel unit comprising a switching device, pixel electrode, and repair electrode. The repair electrode branches from a neighboring gate line and extends such that the repair electrode is in overlapping spaced-apart relation with the pixel electrode and selectively connectable to the pixel electrode. Accordingly, a pixel where a high pixel defect occurs can be repaired by selective connection with the repair electrode, thereby improving display quality of the liquid crystal display.

REFERENCES:
patent: 6323871 (2001-11-01), Fujiyoshi et al.
patent: 6621537 (2003-09-01), Nakamura et al.
patent: 6882375 (2005-04-01), Kim
patent: 7009664 (2006-03-01), Imayama et al.
patent: 2004/0114059 (2004-06-01), Lee et al.
patent: 2004/0125259 (2004-07-01), Cho
patent: 2006/0061700 (2006-03-01), Chung et al.

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