Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate
2004-05-24
2011-12-13
Nguyen, Kevin M (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Touch panel
C345S173000, C345S179000, C178S018010
Reexamination Certificate
active
08077162
ABSTRACT:
A touch panel includes: a transparent substrate on which surface acoustic wave is propagated; a transmission/reception unit that is formed in peripheral regions on the transparent substrate, each two of the peripheral regions facing each other, and transmit and receive the surface acoustic wave; a detecting unit that detects the location of an object touching a predetermined operation area; and a sheet member that faces the transparent substrate, with a space layer being interposed in between, and has first protrusions formed on a substrate-facing surface that faces the transparent substrate. In this touch panel, the substrate-facing surface of the sheet member is not brought into contact with the transparent substrate when an object does not touch the operation area, and the substrate-facing surface of the sheet member is brought into contact with the transparent substrate when the object touches the operation area.
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Japanese Patent Office Action, mailed Jun. 17, 2008 and issued in corresponding Japanese Patent Application No. 2003-148226.
Almeida Cory
Fujitsu Component Limited
Nguyen Kevin M
Staas & Halsey , LLP
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