Planar lighting by blue LEDs array with remote phosphor

Chung-Hao Tien; Chien-Hsiang Hung; Bo-Wen Xiao; Hsin-Tao Huang; Yi-Pai Huang; Chuang-Chuang Tsai

doi:10.1117/12.841218

11 February 2010 Planar lighting by blue LEDs array with remote phosphor

Chung-Hao Tien, Chien-Hsiang Hung, Bo-Wen Xiao, Hsin-Tao Huang, Yi-Pai Huang, Chuang-Chuang Tsai

Proceedings Volume 7617, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV; 761707 (2010) https://doi.org/10.1117/12.841218
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

A novel direct-emitting LED backlit for LCDs was demonstrated. Unlike the conventional white LED schemes for display applications, proposed blue light excited planar lighting (BLPL) exploits blue LED chip to remotely excite the YAG-phosphor film and thus render a uniform planar source, where the YAG-phosphor acts as the diffuser film and wavelength down converter simultaneously. Based on the diffusing characterization of YAG-phosphor layer, we examined the optical properties of the BLPL system in viewpoints of uniformity, luminance and mixing capability. Consequently, a prototype 10-mm-thickness BLPL module was demonstrated with 86% uniformity and 9800 nits without using any diffuser film or light guiding plate.

Citation Download Citation

Chung-Hao Tien, Chien-Hsiang Hung, Bo-Wen Xiao, Hsin-Tao Huang, Yi-Pai Huang, and Chuang-Chuang Tsai "Planar lighting by blue LEDs array with remote phosphor", Proc. SPIE 7617, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV, 761707 (11 February 2010); https://doi.org/10.1117/12.841218

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available