Liquid crystal cells – elements and systems – Particular excitation of liquid crystal – Electrical excitation of liquid crystal
Reexamination Certificate
2007-11-20
2007-11-20
Duong, Thoi V. (Department: 2871)
Liquid crystal cells, elements and systems
Particular excitation of liquid crystal
Electrical excitation of liquid crystal
C349S114000, C349S110000
Reexamination Certificate
active
10760394
ABSTRACT:
The liquid crystal display device of the present invention can prevent the generation of the frame-like brightness difference at a portion which surrounds a light transmitting region. A pixel region formed over one substrate SUB1which constitutes a liquid crystal display device includes a light transmitting region LTA which allows transmitting of light and a light reflecting region LRA which allows reflection of light. The light transmitting region LTA includes a first pixel electrode TPX formed of a conductive layer having the light transmitting property, while the light reflecting region LRA is formed of a second pixel electrode RPX formed of a conductive film having the non-light-transmitting property. A holding capacitance electrode CT which is connected to a holding capacitance line CL is formed below the second pixel electrode RPX. The holding capacitance electrode is formed of a material having light shielding property and is arranged such that the holding capacitance electrode is overlapped to a boundary portion between the light transmitting region LTA and the light reflecting region LRA, whereby the generation of the frame-like brightness difference at the portion which surrounds the light transmitting region LTA can be prevented.
REFERENCES:
patent: 5671027 (1997-09-01), Sasano et al.
patent: 6330047 (2001-12-01), Kubo et al.
patent: 6657696 (2003-12-01), Aruga
patent: 6707511 (2004-03-01), Kim et al.
patent: 6710827 (2004-03-01), Kubo et al.
patent: 6912034 (2005-06-01), Nagano et al.
patent: 2002/0033918 (2002-03-01), Shigeno et al.
patent: 2003/0086043 (2003-05-01), Seo et al.
patent: 2000-194016 (1999-12-01), None
patent: 2001-350158 (2000-06-01), None
Anno Kouichi
Hikiba Masayuki
Nishino Tomonori
A. Marquez, Esq. Juan Carlos
Duong Thoi V.
Fisher Esq. Stanley P.
Hitachi Displays Ltd.
Reed Smith LLP
LandOfFree
Liquid crystal display device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystal display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal display device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3824053