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43.4: High Brightness Direct LED Backlight for LCD‐TV
Author(s) -
West Robert Scott,
Konijn Huub,
SillevisSmitt Willem,
Kuppens Simon,
Pfeffer Nicola,
Martynov Yourii,
Takaaki Yagi,
Eberle Stefan,
Harbers Gerard,
Tan Tien Wei,
Chan Choon Earn
Publication year - 2003
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 - 10.1889/1.1832516
Subject(s) - backlight , light emitting diode , brightness , liquid crystal display , optoelectronics , rgb color model , computer science , power (physics) , materials science , led display , optics , electrical engineering , engineering , physics , artificial intelligence , quantum mechanics
A novel LED light source, “Luxeon Direct”, has been integrated into a highly efficient direct backlight. This concept incorporates one of the latest LEDs released by Lumileds™. This direct backlight approach integrates side emitting LEDs with a highly reflective cavity placed behind the LCD. Prior to this method it has been very difficult to use high power red, green and blue (RGB) LEDs in a direct backlight design due to the high color and brightness uniformity requirements. In this paper a method will be demonstrated that can achieve excellent backlight performance using an indirect illumination approach with high power LEDs.