Paper Title:
Design of LED Backlight Module Used for Large-Size TFT-LCD
  Abstract

One kind of LED backlight module used for large-size TFT-LCD to apply in the direct illumination-type backlight source is designed by theoretical analysis and software simulation, and it is also confirmed such 15-inch backlight source can provide uniform illumination. The LED light intensity is estimated according to backlight module surface's brightness. A LED illumination model in Tracepro is established to study its illumination distribution. It is found the illuminance is most uniform when the mixed cavity thickness is 20mm and the backlight source LED spacing 20mm. Simultaneously the promotion to the LED backlight source array, its optics uniformity achieves 85%. By adding a lens for each LED to design those according to the Tracepro interactive optimized tool, the mixed light space can be reduced to 5-10mm.

  Info
Periodical
Chapter
Chapter 5: Industrial Mechanics
Edited by
Yongping Zhang, Linhua Zhou and Elwin Mao
Pages
485-488
DOI
10.4028/www.scientific.net/AMM.109.485
Citation
J. Y. Zhou, J. S. Xu, Q. H. Lin, W. Y. Pei, "Design of LED Backlight Module Used for Large-Size TFT-LCD", Applied Mechanics and Materials, Vol. 109, pp. 485-488, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Paul C.P. Chao, Lun De Liao, Chi Wei Chiu, Chien Yu Shen
Abstract:This study develops a highly-efficient light-guide plate for edge lighting backlight module that has no optical films. The light guide plate...
128
Authors: Paul C.P. Chao, Lun De Liao, Chi Wei Chiu, Chien Yu Shen
Abstract:A novel dual-cone-shaped side-emitting lens cap for High Brightness Light Emitting Diodes (HB-LEDs) is proposed for improving brightness and...
132
Authors: Yi Ting Sun, Yu Nan Pao, T.H. Lin
Abstract:Side-emitting LED (Light emitting diode) modulation lens is proposed here for generating planar lighting source that can be applied in many...
152
Authors: Chi Feng Chen, Lea Ming Lu
Abstract:The optimization of the directly-under-light type backlight module structure for brightness uniformity is investigated. All structure...
166
Authors: Chi Feng Chen, Li Ming Lu, Yung Fang Jhou
Abstract:A novel optical sheet with double-layer microstructures is proposed to improve the brightness uniformity and optical efficiency in the LED...
4106