LED Collimation Module for Time Sequential Back Light System

Author

Shih-Hsin Ma ; Chi-Hung Lee ; An-Ching Tai

Author_Institution

Dept. of Photonics, Feng Chia Univ., Taichung, Taiwan

Volume

10

Issue

12

fYear

2014

fDate

Dec. 2014

Firstpage

1036

Lastpage

1041

Abstract

Collimation lenses for light-emitting diode (LED) light sources have been widely used in lighting engineering. In this paper, a collimated LED light source was developed for a color liquid-crystal display backlight, which is driven using a two-field driving scheme to display color. A color-separation backlight that involves using the designed collimation modules possesses several advantages such as low volume, elimination of dye color filters, high feasibility with conventional ultra-precision machining processes, and a wide color gamut.

Keywords

LED displays; colour displays; lenses; light sources; liquid crystal displays; machining; optical collimators; LED collimation lens module; collimated LED light source; color liquid-crystal display backlight; color-separation backlight; dye color filter elimination; light-emitting diode; lighting engineering; time sequential backlight system; two-field driving scheme; ultraprecision machining processing; wide color gamut; Color; Films; Image color analysis; Lenses; Light emitting diodes; Liquid crystal displays; Optical reflection; Collimation lens; color-separation; two-field;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2014.2336891

Filename

6849938