Liquid crystal cells – elements and systems – Nominal manufacturing methods or post manufacturing... – Aligning liquid crystal with means other than alignment layer
Reexamination Certificate
2007-10-30
2011-10-25
Doan, Jennifer (Department: 2874)
Liquid crystal cells, elements and systems
Nominal manufacturing methods or post manufacturing...
Aligning liquid crystal with means other than alignment layer
C349S122000, C349S123000, C349S127000, C349S129000, C349S187000
Reexamination Certificate
active
08045131
ABSTRACT:
The present invention provides a transparent liquid crystal display device which is less in display characteristics and viewing angle dependency and can provide bright images and high contrasts. The transparent liquid crystal display device comprises at least: a backlight; a polarizer; a second optical anisotropic layer with a retardation of 50 to 180 nm at a wavelength of 550 nm; a first optical anisotropic layer with a retardation of 20 to 140 nm at a wavelength of 550 nm; a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates; a third optical anisotropic layer with a retardation of 50 to 200 nm at a wavelength of 550 nm; and a polarizer, arranged in piles in this order from the backlight, wherein the first optical anisotropic layer comprising at least a liquid crystal film with a fixed nematic hybrid liquid crystal alignment structure.
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Ikeda Satoru
Uesaka Tetsuya
Doan Jennifer
Nippon Oil Corporation
Panitch Schwarze Belisario & Nadel LLP
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