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P‐27: A Small‐Area Backlight Employing Divergent‐Angle Beam Rotator and Unique Double‐Layer Micro‐Prisms
Author(s) -
Tai C.Y.
Publication year - 1998
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 - 10.1889/1.1833817
Subject(s) - backlight , optics , collimated light , specular reflection , planar , light guide , light source , light beam , reflection (computer programming) , materials science , total internal reflection , prism , beam (structure) , physics , liquid crystal display , computer science , computer graphics (images) , laser , programming language
An energy efficient Divergent Angle Rotator backlighting technology is developed to illuminate small size displays using point‐like light sources. Based on reflecting light beams from tilted surfaces created on the top surface of the light pipe, this technology not only effectively converts light from a point‐like light source into a collimated planar light source but also eliminates images of the light source in the specular reflection based backlighting system. It collimates light beams on both dimensions.