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INFORMATION DISPLAY DEVICE commons meetings

Foreign code F120006964
File No. S2012-0560-N0
Posted date Oct 29, 2012
Country WIPO
International application number 2011JP005179
International publication number WO 2012/035768
Date of international filing Sep 14, 2011
Date of international publication Mar 22, 2012
Priority data
  • P2010-206145 (Sep 14, 2010) JP
Title INFORMATION DISPLAY DEVICE commons meetings
Abstract

The problem the present invention addresses is the provision of an information display device that is capable of showing a main image to specific viewers only and showing another image to other viewers. In order to do so, a brightness change unit (121) changes the brightness of a main image and another brightness change unit (122) generates a correction image in accordance with the difference between the main image and a secondary image. A projector (221) projects the main image onto a screen (24) through a polarizing filter (231), and another projector (222) projects the correction image onto the screen (24) through another polarizing filter (232). Specific viewers view the screen (24) using glasses (30) that have polarizing filters (31) exhibiting the same polarization direction as the abovementioned polarizing filter (231), and other viewers view the screen (24) without glasses.

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • SCHOOL JUDICIAL PERSON IKUTOKUGAKUEN,
  • SHIRAI, AKIHIKO,
  • YANAKA, KAZUHISA,
  • UTSUGI, TAKERU
  • Inventor
  • SHIRAI, AKIHIKO,
  • YANAKA, KAZUHISA,
  • UTSUGI, TAKERU
IPC(International Patent Classification)
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