Title:
INPUT DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/021579
Kind Code:
A1
Abstract:
Disclosed is an input device wherein warping can be more effectively suppressed than in conventional input devices. A main body is formed by successively laminating in the following order from the bottom: a support member, a lower substrate, an upper substrate, a decorative layer and a covering layer, and these members are joined to each other by adhesive or the like. A warping correction member (72) is provided on the under-surface of the main body. The warping correction member (72) is provided with surface layers (74, 75) made from, for example, urethane acrylate resin having heat shrinkage properties on the upper and lower faces of a base (73) made from, for example, PET. The thicknesses of the surface layers (74, 75) are adjusted to different dimensions in such a way as to have a warping force in the opposite direction with respect to the direction of warping of the main body.
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Inventors:
SASAGAWA HIDETO (JP)
YAMAGATA KAZUYOSHI (JP)
NISHIYAMA TAKASHI (JP)
YAMAGATA KAZUYOSHI (JP)
NISHIYAMA TAKASHI (JP)
Application Number:
PCT/JP2010/063736
Publication Date:
February 24, 2011
Filing Date:
August 13, 2010
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
SASAGAWA HIDETO (JP)
YAMAGATA KAZUYOSHI (JP)
NISHIYAMA TAKASHI (JP)
SASAGAWA HIDETO (JP)
YAMAGATA KAZUYOSHI (JP)
NISHIYAMA TAKASHI (JP)
International Classes:
G06F3/041; G06F3/045
Domestic Patent References:
| WO2006123616A1 | 2006-11-23 |
Foreign References:
| JP2002328779A | 2002-11-15 |
Attorney, Agent or Firm:
NOZAKI, Teruo et al. (JP)
Teruo Nozaki (JP)
Teruo Nozaki (JP)
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