Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2011-08-05
2011-12-27
Duong, Thoi (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C349S045000, C349S097000
Reexamination Certificate
active
08085360
ABSTRACT:
The present invention relates to a technique which can make a backlight used in a liquid crystal display device thin and light-weighted. The present invention provides a liquid crystal display device which includes a display panel and a backlight which is arranged behind the display panel, wherein the backlight includes a film-like light guide member, a film-like light semi-transmissive member which is adhered to a first surface of the light guide member which faces the display panel in an opposed manner, a film-like reflective member which is adhered to a back surface of the light guide member opposite to the first surface, and a spot light source which is arranged at a position of the light guide member at which light is incident on the light guide member from the first surface or the back surface, and a refractive index of the light semi-transmissive member is set smaller than a refractive index of the light guide member.
REFERENCES:
patent: 5816677 (1998-10-01), Kurematsu et al.
patent: 6598987 (2003-07-01), Parikka
patent: 6630968 (2003-10-01), Tsuchihashi et al.
patent: 6811276 (2004-11-01), Moon
patent: 6906767 (2005-06-01), Iijima
patent: 7056001 (2006-06-01), Chuang
patent: 7108416 (2006-09-01), Osawa
patent: 7355661 (2008-04-01), Hong
patent: 7478942 (2009-01-01), Kim et al.
patent: 7513669 (2009-04-01), Chua et al.
patent: 1144913 (1997-03-01), None
patent: 0 684 423 (1995-11-01), None
patent: 08-152526 (1996-06-01), None
patent: 10-021720 (1998-01-01), None
patent: 2000-147429 (2000-05-01), None
patent: 2000-249837 (2000-09-01), None
patent: 2004-062004 (2004-02-01), None
patent: 2005-011599 (2005-01-01), None
A. Marquez, Esq. Juan Carlos
Duong Thoi
Hitachi Displays Ltd.
Stites & Harbison PLLC
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