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Paper Abstract and Keywords
Presentation 2010-01-29 12:15
A High-Contrast Front-Projection Display System Suppressing Reflection of Ambient Light
Baku Katagiri, Ryota Sato, Yoshito Suzuki, Mitsuru Kano, Tatsuo Uchida (Tohoku Univ.) EID2009-81 Link to ES Tech. Rep. Archives: EID2009-81
Abstract (in Japanese) (See Japanese page) 
(in English) Problem in the front-projection displays is that the screen contrast ratio decreases in bright ambient light. To overcome this problem, we have proposed a special screen, whose diffusing property shows typical top-hat characteristics. The screen can diffuse incident light from the projector in lower angle range to viewing angle range and can diffuse ambient light to angle range out of viewing. In this paper, we have optimized the incident angle range from the projector and the viewing angle range for typical ambient light, in order to practice these performances. Also, we have realized the special screen with the above mentioned diffusing property and have achieved high quality front-projection display with high contrast ratio, even in brightly lit room.
Keyword (in Japanese) (See Japanese page) 
(in English) Front-projection display / high contrast / suppressing ambient light / controlling diffusing property / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 404, EID2009-81, pp. 137-140, Jan. 2010.
Paper #  
Date of Issue 2010-01-21 (EID) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EID2009-81 Link to ES Tech. Rep. Archives: EID2009-81

Conference Information
Conference Date 2010-01-28 - 2010-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyusyu Univ. (Chikushi Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ITE-IDY 
Conference Code 2010-01-IDY-EID-OMD-EDD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A High-Contrast Front-Projection Display System Suppressing Reflection of Ambient Light 
Sub Title (in English)  
Keyword(1) Front-projection display  
Keyword(2) high contrast  
Keyword(3) suppressing ambient light  
Keyword(4) controlling diffusing property  
1st Author's Name Baku Katagiri  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Ryota Sato  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Yoshito Suzuki  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Mitsuru Kano  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Tatsuo Uchida  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
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Date Time 2010-01-29 12:15:00 
Presentation Time 10 
Registration for ITE-IDY 
Paper # IEICE-EID2009-81 
Volume (vol) IEICE-109 
Number (no) no.404 
Page pp.137-140 
#Pages IEICE-4 
Date of Issue IEICE-EID-2010-01-21 

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