DocumentCode :
2732530
Title :
A Novel RGBW Pixel for LED Displays
Author :
Shlayan, Neveen ; Venkat, Rama ; Ginobbi, Paolo ; Mercier, Glenn
Author_Institution :
Nevada Univ., Las Vegas, NV
fYear :
2008
fDate :
19-21 Aug. 2008
Firstpage :
407
Lastpage :
411
Abstract :
In display technology, pixels are composed of three primary colors: red, green, and blue (RGB). Using the primary colors provides the ability to generate variety of hues including achromatic point (AP) (white light). This concept is applied in light emitting diode (LED) displays where each pixel consists of RGB LEDs. Although using compact RGB light in LED displays provides a wide color gamut, many issues arise due to dissimilarities in optical and physical characteristics of LEDs such as: uniform spatial light mixing and distribution of AP, and AP maintenance and thermal management. Power consumption is also a major concern in LED displays. In this paper, the issues with current RGB pixel architecture such as non-uniform mixing and distribution of AP, energy efficiency and a solution to these issues by introducing a new pixel configuration consisting of red, green, blue and white (RGBW) are discussed. Experimental results as well as theoretical analysis of the new configuration are presented and discussed.
Keywords :
LED displays; energy conservation; LED displays; RGBW pixel; achromatic point; energy efficiency; light emitting diode; spatial light mixing; thermal management; Brightness; Energy consumption; Light emitting diodes; Lighting control; Liquid crystal displays; Optical mixing; Plasma displays; Stimulated emission; Systems engineering and theory; Thermal management; Display; LED; Pixel; RGB; RGBW;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems Engineering, 2008. ICSENG '08. 19th International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-0-7695-3331-5
Type :
conf
DOI :
10.1109/ICSEng.2008.43
Filename :
4616671
Link To Document :
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