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74.4: A Novel Ultra Thin Backlight System without Optical Sheets Using a Newly Developed Multi‐Layered Light‐guide
Author(s) -
Ishida Takeshi,
Kaida Kazuya,
Kadowaki Shinya,
Kunimasa Fumie
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3499847
Subject(s) - backlight , light guide , materials science , prism , optics , optoelectronics , layer (electronics) , computer science , light source , nanotechnology , liquid crystal display , physics
We describe a backlight system using a newly developed Multi‐Layered Light‐guide (MLL). MLL can perform as a backlight without additional optical sheets such as prism sheets or diffusers. It was developed as a multi‐layer sheet featuring different refractive indexes on different layers. A prototype was built, and the principles were confirmed in comparison with the theory. with a thickness of 0.514 mm, the built prototype is the thinnest backlight in the world, using only MLL without additional optical sheets.