Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2005-05-10
2005-05-10
Eisen, Alexander (Department: 2674)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S087000, C362S035000, C359S599000, C349S061000
Reexamination Certificate
active
06891530
ABSTRACT:
A touch panel-including illuminator having: a light pipe made of a transparent plate-like material having an upper surface, a lower surface and at least one incidence side surface, the upper surface being provided with light output means through which light incident on the incidence side surface is made to emerge from the lower surface; a light source disposed on the incidence side surface of the light pipe; an adhesive layer; and a touch panel bonded to the upper surface of the light pipe through the adhesive layer; wherein the light output means are constituted by fine grooves which are disposed discontinuously, each of which is made of a concave portion, and each of which is shaped like an approximate triangle in section; and wherein each of the fine grooves has an optical path changing slope and a steep slope.
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Japanese Abstract No. 2000075293, dated Mar. 14, 2000.
Japanese Abstract No. 2000187197, dated Jul. 4, 2000.
Kinoshita Ryoji
Kishioka Hiroaki
Nakano Yuuki
Sakaitani Waka
Umemoto Seiji
Eisen Alexander
Mak Robin
Nitto Denko Corporation
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