A novel ultra‐thin backlight system without optical sheets using a multi‐layered lightguide | Zendy

Ishida Takeshi | Zendy; Yuki Ryuzo | Zendy

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A novel ultra‐thin backlight system without optical sheets using a multi‐layered lightguide

Author(s) -

Ishida Takeshi,

Yuki Ryuzo

Publication year - 2011

Publication title -

journal of the society for information display

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.578

H-Index - 52

eISSN - 1938-3657

pISSN - 1071-0922

DOI - 10.1889/jsid19.12.923

Subject(s) - backlight , optics , materials science , reflector (photography) , prism , light guide , computer science , optoelectronics , light source , liquid crystal display , physics

— A backlight system using a newly developed multi‐layered lightguide (MLL) is described. The MLL can function as a backlight without additional optical sheets such as prism sheets or diffusers. It was developed as a multi‐layered sheet featuring different refractive indexes for different layers. A prototype was built, and the principles were confirmed by comparison with theory. With a thickness of 0.414 mm, the prototype is the thinnest backlight in the world, using only a MLL and a reflector.

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