Document Detail


Extraordinarily wide-view and wide spectral bandwidth transflective liquid-crystal displays.
MedLine Citation:
PMID:  20389472     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
This work presents a simple compensation method for widening the viewing angle of transflective liquid-crystal displays (TR-LCDs). For an off-axis light, the slow axis of a biaxial film shifts linearly as the Nz factor is varied. By using this optical characteristic of a biaxial film, the broadband condition of broadband circular polarizers exactly holds over a full 80 degrees viewing cone, thus eliminating the off-axis light leakage to widen the viewing angle of TR-LCDs. Based on the proposed compensation method, the TR-LCDs theoretically have a wide spectral bandwidth and a viewing angle of 80 degrees for contrast-ratio (CR) >100:1 and >30:1 in transmissive and reflective modes, respectively. Experiments also show that the proposed TR-LCD has a viewing angle of over the entire 80 degrees and 65 degrees viewing cone in T-mode and R-mode, respectively, for CR>10:1. The proposed TR-LCD is highly promising for mobile display applications.
Authors:
Chi-Huang Lin; Ru-Hsien Chiang; Ming-Li He; Chia-Wei Chen
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Optics express     Volume:  18     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-04-14     Completed Date:  2010-07-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4601-8     Citation Subset:  -    
Affiliation:
Department of Physics, National Sun Yat-Sen University, Kaohsiung, Taiwan 80424, Republic of China. chihuang@mail.nsysu.edu.tw
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