Title :
Partial Polarization of Direct LED Backlight Module
Author :
Ying-Yun Chen ; Rong-Seng Chang
Author_Institution :
Dept. of Opt. & Photonics, Nat. Central Univ., Jungli, Taiwan
Abstract :
Light-emitting diodes (LEDs) have been widely used in liquid crystal display (LCD) backlight modules. In general, the light emitted by the LED backlight modules is not un-polarized light. However, our experiment results and analysis show that the light is partial polarization. The characteristics of partial polarization obtained in the experiment and analysis are utilized to increase the brightness of LCD backlight module, and then the results of this study demonstrate that the brightness can be increased by 46%. Thus, this study provides a method to increase the brightness of LCD backlight modules.
Keywords :
brightness; light emitting diodes; light polarisation; liquid crystal displays; LCD backlight module; LED backlight module; brightness; light emitting diode; liquid crystal display; partial polarization; Brightness; Light emitting diodes; Light sources; Optical films; Optical polarization; Optical variables measurement; Brightness; light-emitting diodes (LED); liquid crystal display (LCD); partial polarization;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2015.2399332
