Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2005-04-19
2005-04-19
Parker, Kenneth (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C362S035000
Reexamination Certificate
active
06882382
ABSTRACT:
A surface light source device includes a light guide plate which guides light upward and downward, a light quantity adjustment unit which is provided on at least one of top and bottom surfaces of the light guide plate and adjusts the quantity of light above the light guide plate to be different from that below the light guide plate, an emitting device which is provided to at least one side of the light guide plate, and diffusion plates which are respectively installed at the top and bottom surfaces of the light guide plate. By adjusting the quantities of light radiated above and below the light guide plate, the brightness of an image can be easily adjusted.
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Chung David Y.
Parker Kenneth
Samsung SDI & Co., Ltd.
Stein, McEwen & Bui LLP
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