Active-matrix addressing liquid-crystal display device and...

Details Active-matrix addressing liquid-crystal display device and... Active-matrix addressing liquid-crystal display device and...

2005-12-06

2005-12-06

Ton, Toan (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S043000

Reexamination Certificate

active

06972821

ABSTRACT:
An active-matrix addressing LCD device that suppresses effectively the off leakage current induced by the charge-up of the spacers placed over the TFTs. The device comprises (a) a first substrate having switching elements; (b) a second substrate coupled with the first substrate in such a way as to form a gap with spacers between the first and second substrates; the spacers being distributed in the gap; (c) a liquid crystal confined in the gap; and (d) protrusions formed in overlapping areas with the switching elements; each of the protrusions being protruded in a direction that narrows the gap. The spacers distributed in the gap are likely to be shifted away from the overlapping areas due to the protrusions.

REFERENCES:
patent: 5905548 (1999-05-01), Shimada
patent: 6407784 (2002-06-01), Kanou et al.
patent: 6414739 (2002-07-01), Suzuki
patent: 63-221322 (1988-09-01), None
patent: 2000-258800 (2000-09-01), None

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