Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate
2005-06-14
2005-06-14
Kim, Robert H. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Particular illumination
C349S061000, C385S120000, C385S147000, C385S901000, C362S035000
Reexamination Certificate
active
06906761
ABSTRACT:
A reflection sheet which can prevent scratches on a back face of an optical waveguide plate, and a backlight unit capable of attempting the improvement of brightness and the uniformization of the brightness using the reflection sheet. The reflection sheet includes a substrate sheet made of a white synthetic resin and a scratchproof layer overlaid to the front face side of this substrate sheet, wherein the scratchproof layer has flexible protrusions on its front face in a substantially uniform manner. The scratchproof layer includes a binder and beads dispersed in the binder. Flexible elastomer material which constitutes the beads is preferably flexible polyurethane or a silicone rubber.
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U.S. Appl. No. 10/243,365, filed Sep. 12, 2002, Nakano.
Akkapeddi Prasad R.
Jordan and Hamburg LLP
Keiwa Inc.
Kim Robert H.
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