Title:
IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/155984
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an image display device which has an excellent light condensing property. This image display device comprises: a liquid crystal prism element (40) which has a prism array (44) wherein a plurality of prisms (43) are arranged, a liquid crystal layer (45) laminated on the prism array (44), and electrodes (48) provided in positions corresponding to each of the prisms (43) that constitute the prism array (44); a control unit which controls the voltages applied to the electrodes (48); and a position detection unit which detects the viewing position of a user. On the basis of the viewing position detection result from the position detection unit, the control unit can apply the same or different voltages to each of the electrodes (48) that are provided in the positions corresponding to each of the prisms (43).
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Inventors:
HAYASHI KATSUHIKO
INOUE SHUJI
INOUE SHUJI
Application Number:
PCT/JP2014/001217
Publication Date:
October 02, 2014
Filing Date:
March 05, 2014
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
G02F1/13; G02B30/27; G02F1/13357; G09F9/00
Domestic Patent References:
| WO2011040088A1 | 2011-04-07 |
Foreign References:
| JPH05323261A | 1993-12-07 | |||
| JPH0792507A | 1995-04-07 |
Attorney, Agent or Firm:
OGASAWARA PATENT OFFICE (JP)
Patent business corporation Ogasawara patent firm (JP)
Patent business corporation Ogasawara patent firm (JP)
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