Document Detail


Polarized backlight with constrained angular divergence for enhancement of light extraction efficiency from wire grid polarizer.
MedLine Citation:
PMID:  22418288     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Efficiency of liquid crystal displays highly depends on the amount of polarized light emerging from the backlight module. In this paper, a backlight architecture using a nanoimprint wire grid polarizer for polarization recycling is proposed and studied, in which the extraction efficiency of polarized light is the major concern. The backlight module is composed of the stack of a wire grid polarizer, a lenticular array and a light guide plate. The light guide plate features interleaving v-groove and trapezoidal ridge coated with aluminum on the top surface, and scattering dot array on the bottom. The angular divergence of emerging light from the light guide plate can be well constrained so as to exploit the angular range with the best transmission of polarized light for the wire grid polarizer. The prototype of a 2.5-inch module has demonstrated an angular divergence of 48°. The overall extraction efficiency of polarized light enhanced by 21% and uniformity of 76% have been achieved.
Authors:
Po-Hung Yao; Chi-Jui Chung; Chien-Li Wu; Cheng-Huan Chen
Related Documents :
8570348 - Relation between reaction time and the phase of spontaneous and controlled breathing pa...
13971398 - Stimulus frequency and neuromuscular block.
22418258 - A performance-based cost to honest signalling in male green anole lizards (anolis carol...
11768488 - Visual object categorisation at distinct levels of abstraction: a new stimulus set.
23721238 - Rounding behavior in the reporting of headache frequency complicates headache chronific...
24343248 - What controls gain in gain control? mismatch negativity (mmn), priors and system biases.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-03-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4819-29     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  All-fiber low-loss connector for accessing both close cores of twin-core fiber.
Next Document:  An automatic method for assembling a large synthetic aperture digital hologram.