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Paper Abstract and Keywords
Presentation 2010-01-29 11:55
Simple Algorithm for Determining Dimming Factor in Adaptive Dimming Technique
Kazuyoshi Shiohara, Kazuma Sakakibara, Tomokazu Shiga (Univ. of Electro-Comm.) EID2009-78 Link to ES Tech. Rep. Archives: EID2009-78
Abstract (in Japanese) (See Japanese page) 
(in English) A simple algorithm for determining dimming factor in an adaptive dimming technique is proposed. In the method, firstly the dimming factors are roughly determined according to the maximum signal of each block. Then the factors are adjusted to compensate for the lack of luminance caused by the broadened luminance distribution of each block. Computer simulation shows that the increase in power is less than 7.5%, implying the proposed method has equivalent power saving effect. In addition, the clipping ratio is less than 0.04% and the luminance difference between output images and input images is less than 0.45%. The calculation time of the proposed method is about 1/600 times shorter than that of the previous method.
Keyword (in Japanese) (See Japanese page) 
(in English) LCD / backlight / adaptive dimming technique / local dimming / dimming factor / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 404, EID2009-78, pp. 127-130, 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 EID2009-78 Link to ES Tech. Rep. Archives: EID2009-78

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) Simple Algorithm for Determining Dimming Factor in Adaptive Dimming Technique 
Sub Title (in English)  
Keyword(1) LCD  
Keyword(2) backlight  
Keyword(3) adaptive dimming technique  
Keyword(4) local dimming  
Keyword(5) dimming factor  
1st Author's Name Kazuyoshi Shiohara  
1st Author's Affiliation Universuty of Electro-Communications (Univ. of Electro-Comm.)
2nd Author's Name Kazuma Sakakibara  
2nd Author's Affiliation Universuty of Electro-Communications (Univ. of Electro-Comm.)
3rd Author's Name Tomokazu Shiga  
3rd Author's Affiliation Universuty of Electro-Communications (Univ. of Electro-Comm.)
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Date Time 2010-01-29 11:55:00 
Presentation Time
Registration for ITE-IDY 
Paper # IEICE-EID2009-78 
Volume (vol) IEICE-109 
Number (no) no.404 
Page pp.127-130 
#Pages IEICE-4 
Date of Issue IEICE-EID-2010-01-21 

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