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Paper Abstract and Keywords
Presentation 2012-01-27 13:38
Influence of the back reflection on the out-coupling efficiency in Organic Light Emitting Devices with micro lens array.
Yuji Sawatari, Takao Goto, Takumi Ohashi, Akiyoshi Mikami (K.I.T) EID2011-16 Link to ES Tech. Rep. Archives: EID2011-16
Abstract (in Japanese) (See Japanese page) 
(in English) We investigated the light extraction efficiency of Organic light emitting device (OLED), using micro-lens array by evaluating optical transmittance properties of micro-lens sheet and back-reflection characteristics of OLED from experimental and theoretical approaches. In result, light extraction coefficient of the micro-lens sheet was improved by a factor of 1.3 to 2.2 depending on the back reflectivity of the sheet. It was found that optical matching between micro-lens array and OLED plays an important role in light extraction from the device, rather than the configuration of micro-lens array. It was concluded that out-coupling efficiency of the OLED with micro-lens sheet can be improved in the between 1.2 to 1.8 times depending on the back reflectivity and optical mode distribution of the device.
Keyword (in Japanese) (See Japanese page) 
(in English) OLED / Micro Lens / Reflection / Optical Analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 421, EID2011-16, pp. 5-8, Jan. 2012.
Paper # EID2011-16 
Date of Issue 2012-01-20 (EID) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EID2011-16 Link to ES Tech. Rep. Archives: EID2011-16

Conference Information
Committee EID ITE-IDY IEE-EDD  
Conference Date 2012-01-27 - 2012-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Akita University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Display technology, etc 
Paper Information
Registration To EID 
Conference Code 2012-01-EID-IDY-EDD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of the back reflection on the out-coupling efficiency in Organic Light Emitting Devices with micro lens array. 
Sub Title (in English)  
Keyword(1) OLED  
Keyword(2) Micro Lens  
Keyword(3) Reflection  
Keyword(4) Optical Analysis  
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1st Author's Name Yuji Sawatari  
1st Author's Affiliation Kanazawa Institute of Technology (K.I.T)
2nd Author's Name Takao Goto  
2nd Author's Affiliation Kanazawa Institute of Technology (K.I.T)
3rd Author's Name Takumi Ohashi  
3rd Author's Affiliation Kanazawa Institute of Technology (K.I.T)
4th Author's Name Akiyoshi Mikami  
4th Author's Affiliation Kanazawa Institute of Technology (K.I.T)
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Speaker
Date Time 2012-01-27 13:38:00 
Presentation Time
Registration for EID 
Paper # EID2011-16 
Volume (vol) 111 
Number (no) no.421 
Page pp.5-8 
#Pages
Date of Issue 2012-01-20 (EID) 


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