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US 7,298,366 B2Granted
Touch panel and electronic equipment using the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYuichi Yamamoto, Hirofumi Komiya, Nobuhiro Yamaue, Toshiharu Fukui, Yoshiharu Abe
Life of this patent
Estimating the term…
Abstract
A touch panel and an electronic device using the touch panel have satisfactory, reliable operability. The touch panel is used for an operating section of the electronic device. In this touch panel, upper and lower substrates 21 and 22 have upper and lower electrode layers, respectively, and face with an established spacing. Respective center portions of the substrates 21 and 22 protrude upward like a dome.
Claims6
A touch panel for mounting on a planar display, the touch panel comprising:
- a first light-transmitting substrate having a first surface and a second surface opposite to the first surface of the first light-transmitting substrate;
- a second light-transmitting substrate having a first surface and a second surface, the first surface of the second light-transmitting substrate facing the first surface of said first light-transmitting substrate with a space therebetween, the second surface of the second light-transmitting substrate being a plane arranged to be mounted onto a planar surface of a display element;
- a first light-transmitting electrode layer on the first surface of said first light-transmitting substrate;
- and
- a second light-transmitting electrode layer on the first surface of said second light-transmitting substrate,
- wherein respective center portions of the first surface of said first substrate, the second surface of said first substrate, and the first surface of said second subtrate protrude in a direction from the second substrate to the first substrate,
- wherein said second light-transmitting substrate comprises a lens, and
- wherein the center portion of said second substrate is thicker than a periphery of said second substrate.
5 more elements
A device comprising:
- a display element having a planar surface;
- a touch panel comprising:
- a first light-transmitting substrate having a first surface and a second surface opposite to the first surface of the first light-transmitting substrate;
- a second light-transmitting substrate having a first surface and a second surface of the second light-transmitting substrate, the first surface of the second light-transmitting substrate facing the first surface of said first substrate with a space therebetween, the second surface of the second light-transmitting substrate being a plane arranged to be mounted onto the planar surface of the display element;
- a first light-transmitting electrode layer on the first surface of said second substrate wherein
- respective center portion portions of the first surface of said first substrate, the second surface of said first substrate, and the first surface of said second substrate protrude in a direction from the second substrate to the first substrate,
- said second light-transmitting substrate comprises a lens, and
- the center portion of said second substrate is thicker than a periphery of said second substrate;
- and
- a case having an opening to which said first substrate of said touch panel is engaged.
7 more elements
Dependencies are inferred from the claim text.