Display device having contact holes' taper angle larger in...

Details Display device having contact holes' taper angle larger in... Display device having contact holes' taper angle larger in...

2005-02-10

2008-12-16

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S138000, C349S149000, C349S151000

Reexamination Certificate

active

07466389

ABSTRACT:
A display device is provided with a first contact hole formed in a display region and a second contact hole formed in a terminal region, and a first insulating layer and a second insulating layer formed in that order. The taper angle of the first insulating layer at the first contact hole is larger than the taper angle of the first insulating layer at the second contact hole, and the taper angle of the second insulating layer at the first contact hole is larger than the taper angle of the second insulating layer around the second contact hole.

REFERENCES:
patent: 2002/0101556 (2002-08-01), Kikkawa et al.
patent: 2004/0183989 (2004-09-01), Kim et al.
patent: 2000-171817 (2000-06-01), None
patent: 2000260872 (2000-09-01), None
Machine translation of JP 2000-260872.

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