Translator Disclaimer
2 September 2008 An integrated LED reflector for backlight system
Author Affiliations +
Abstract
An edge-backlight unit (EBLU) is applied as the light device to provide uniform light of liquid crystal display (LCD). Generally, the cathode cold fluorescent lamp (CCFL) is employed as the light source of BLU. With the advantages such as long durability, no mercury substance and good endurance of heavy impact, the light emitting diode (LED) is now accepted well known as available device for solid state lighting. To achieve the market requirement of the thin-film liquid crystal display (LCD) and the green-level product, the LED is replaced with the CCFL used in monitor in order to make display thinner, lighter, no Hg containing. In this paper, the integrated LED reflector is proposed because it enables the point-like light to distribute propagating-light line pattern successfully. To optimize the size and the radian of the reflector, our designed integrated LED reflector can achieve an optical efficiency more than 85%, and its light output length is 11 times of the input light source. Therefore, the integrated LED reflector not only can decrease the number of LED to save the built space, but also enhance the output efficiency. In the future, an integrated LED reflector could make displays thinner and brighter for backlight applications.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chao-Heng Chien and Zhi-Peng Chen "An integrated LED reflector for backlight system", Proc. SPIE 7058, Eighth International Conference on Solid State Lighting, 705810 (2 September 2008); https://doi.org/10.1117/12.797075
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

LED collimation module for time sequential back light system
Proceedings of SPIE (September 24 2014)
A study of LED light linear device for light guide...
Proceedings of SPIE (September 20 2007)
LED-driven backlights for automotive displays
Proceedings of SPIE (September 27 2007)
A new design mixing RGB LED (red, green, blue light...
Proceedings of SPIE (September 11 2006)

Back to Top