Title:
INPUT DEVICE AND INPUT SYSTEM INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2013214268
Kind Code:
A
Abstract:
To provide a new input device that suppresses stray light of a light guide plate, and an input system.
A pen input device 40 of an input system 50 of an embodiment according to the present invention includes a light guide plate 1A that has a touch surface contacted by an operation member and through which light propagates, and imaging units 10 and 20 that capture a part of the light beams that propagate through the light guide plate 1A at different positions. The light guide plate 1A has a light absorption unit 5 in an end area on the rear face thereof that absorbs propagation light that has reached the end area.
Inventors:
SHIBA NAOKI
OKADA NORIAKI
FUJIWARA TSUNEO
MIKAMI KENICHIRO
HORIYAMA MAKOTO
OKADA NORIAKI
FUJIWARA TSUNEO
MIKAMI KENICHIRO
HORIYAMA MAKOTO
Application Number:
JP2012100453A
Publication Date:
October 17, 2013
Filing Date:
April 25, 2012
Export Citation:
Assignee:
SHARP KK
International Classes:
G06F3/042; G06F3/041
Domestic Patent References:
| JP2009258967A | 2009-11-05 | |||
| JP2009277214A | 2009-11-26 | |||
| JP2009258893A | 2009-11-05 |
Foreign References:
| WO2011066100A2 | 2011-06-03 |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
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