Document Detail

Projection screen reflectance control for high contrast display using photochromic compounds and UV LEDs.
MedLine Citation:
PMID:  24921543     Owner:  NLM     Status:  Publisher    
This paper presents the first proof-of-concept implementation and the principle that realizes a projection display whose contrast does not decrease even with existing inter-reflection of projection light or environmental light. We propose the use of photochromic compounds (PhC) to control reflectance of a projection surface. PhC changes color chemically when exposed to UV light. A PhC is applied to a surface to control its reflectance by radiating UV light from a UV-LED array. An image is projected from a visible projector onto the surface to boost the contrast. The proof-of-concept experiment shows that the prototype system achieves approximately three times higher contrast than a projection-only system under natural light.
Daisuke Iwai; Shoichi Takeda; Naoto Hino; Kosuke Sato
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Publication Detail:
Journal Detail:
Title:  Optics express     Volume:  22     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  -    
Other Details:
Languages:  ENG     Pagination:  13492-13506     Citation Subset:  -    
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