Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-04-28
2009-08-04
Ngo, Julie (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S142000, C257S295000, C257S751000
Reexamination Certificate
active
07570336
ABSTRACT:
The present invention discloses a display device having a gate line and a data line crossing each other on a substrate to define a pixel region, a thin film transistor at each crossing of the gate line and data line, a pixel electrode about a circumference of the pixel region and having an opening at a central portion of the pixel region, the pixel electrode electrically connected to the thin film transistor, a piezoelectric lead lanthanum zirconate titanates (PLZT) layer in the opening of the pixel region, and a piezoelectric lead zirconate titanates (PZT) layer between the pixel electrode and the PLZT layer.
REFERENCES:
patent: 5572052 (1996-11-01), Kashihara et al.
patent: 5828129 (1998-10-01), Roh
patent: 5965942 (1999-10-01), Itoh et al.
LG Display Co. Ltd.
McKenna Long & Aldridge LLP
Ngo Julie
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