Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2005-08-09
2005-08-09
Kim, Robert H. (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C257S059000, C257S072000
Reexamination Certificate
active
06927809
ABSTRACT:
The active matrix substrate of the invention includes: a storage capacitor formed on a board; a first insulating layer formed on the storage capacitor; a semiconductor layer formed above the storage capacitor via the first insulating layer: a gate insulating layer formed on the semiconductor layer; a gate electrode layer including a gate electrode formed above the semiconductor layer via the gate insulating layer; a second insulating layer covering the gate electrode layer and the semiconductor layer; a first light-shielding layer formed above the semiconductor layer via the second insulating layer to cover at least a channel region of the semiconductor layer; a third insulating layer formed on the first light-shielding layer; a source electrode layer including source and drain electrodes formed on the third insulating layer; a fourth insulating layer formed on the source electrode layer; and a pixel electrode formed on the fourth insulating layer and electrically connected to the drain electrode. The first light-shielding layer is conductive and has a drain-side light-shielding portion electrically connected to one of a pair of electrodes of the storage capacitor and also to the drain electrode.
REFERENCES:
patent: 2004/0004221 (2004-01-01), Murade
patent: 2004/0051822 (2004-03-01), Sato
patent: 2004/0056297 (2004-03-01), Iki et al.
patent: 2001-066638 (2001-03-01), None
Gotoh Masahito
Higami Yoshinori
Ueda Tohru
Akkapeddi Prasad R.
Keating & Bennett LLP
Kim Robert H.
Sharp Kabushiki Kaisha
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