Quantitative Comparison of Color Performances Between IPS and MVA LCDs

Author

Lu, Ruibo ; Hong, Qi ; Wu, Shin-Tson ; Peng, Kuo-Hsuan ; Hsieh, Hung-Sheng

Author_Institution

Coll. of Opt. & Photonics, Central Florida Univ., Orlando, FL

Volume

2

Issue

4

fYear

2006

Firstpage

319

Lastpage

326

Abstract

Color gamut and color shifts of the film-compensated multi-domain in-plane-switching (IPS) and multi-domain vertical alignment (MVA) liquid crystal displays (LCDs) are calculated quantitatively using light-emitting diodes (LEDs) and cold-cathode fluorescent lamp (CCFL) backlight. Simulation results indicate that the LED backlight exhibits better angular color uniformity and smaller color shifts than CCFL. In addition, the color gamut can be further widened and the color shift reduced when using color-sequential RGB-LED backlight without color filters. In general, both IPS and MVA LCDs show relatively small color shift under different backlights, but MVA has a lower color shift using the optimized uniaxial compensation films

Keywords

cold-cathode tubes; colour; colour displays; fluorescent lamps; light emitting diodes; liquid crystal displays; cold-cathode fluorescent lamp backlight; color gamut; color performances; color shifts; film-compensated multidomain in-plane-switching; light-emitting diodes; multidomain vertical alignment liquid crystal displays; Brightness; Fluorescent lamps; Humans; Image color analysis; Light emitting diodes; Lighting control; Liquid crystal displays; Motion control; Optical films; Optical filters; Backlight; color; color shift; in-plane switching (IPS); light-emitting diode (LED); liquid crystal display (LCD); multi-domain vertical alignment (MVA);

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2006.885158

Filename

4016022