Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2010-11-18
2011-12-27
Doan, Jennifer (Department: 2874)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S056000, C349S084000, C349S122000, C349S128000
Reexamination Certificate
active
08085372
ABSTRACT:
A liquid crystal display device where both improvement in light transmittance of a liquid crystal display panel having a photo alignment film and suppression of occurrence of after image can be achieved. The liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film is thinner than the first alignment film, and has a thickness of equal to or greater than 10 nm and equal to or less than 50 nm.
REFERENCES:
patent: 6583835 (2003-06-01), Yoshida et al.
patent: 7220467 (2007-05-01), Nam
patent: 7859625 (2010-12-01), Sonoda et al.
patent: 2007-033672 (2007-02-01), None
Kunimatsu Noboru
Matsui Chikae
Matsumoto Yuko
Sonoda Hidehiro
Antonelli, Terry Stout & Kraus, LLP.
Doan Jennifer
Hitachi Displays Ltd.
Panasonic Liquid Crystal Displays Co., Ltd.
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