Title :
Wide color-gamut improvement of LCM using multi-phosphor white LED and modified rich color method
Author :
Ching-Chih Tsai ; Lai, Ching-Chih Tsai ; Hsieh, Shih-Min
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
fDate :
8/1/2009 12:00:00 AM
Abstract :
This paper presents an improved wide color-gamut technique for liquid crystal modules (LCM) with multiphosphor white (MPW) light emitting diodes (LED) and an modified rich color image processing method. The MPW LED improves 13% of the display color gamut in comparison with standard white LED under the assumption of equal power consumption and brightness. Via many simulation results, the pixel-level rich color method is shown to obtain a superior image data by giving about 45% saturation enhancement without hue distortion. The performance and merit of the proposed technique are exemplified by conducting several experimental results on a 2.8-inch thin-film-transistor (TFT) LCM.
Keywords :
LED displays; image colour analysis; liquid crystal displays; thin film devices; color image processing method; display color gamut; light emitting diode; liquid crystal module; modified rich color method; multiphosphor white LED; pixel-level rich color method; saturation enhancement; thin-film-transistor LCM; wide color-gamut technique; Brightness; Broadcast technology; Color; Costs; Energy consumption; Filters; Light emitting diodes; Liquid crystal displays; Pixel; Thin film transistors; Color gamut; light emitting diodes (LED); liquid crystal modules (LCM); rich color method;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2009.5278028
