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40.5L: Late‐News Paper: TFT‐LCD with RGBW Color System
Author(s) -
Lee BaekWoon,
Park Cheolwoo,
Kim Sangil,
Kim Taehwan,
Yang Youngchol,
Oh Joonhak,
Choi Jeongye,
Hong Munpyo,
Sakong Dongsik,
Chung Kyuha,
Lee Seongdeok,
Kim Changyong
Publication year - 2003
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1832505
Subject(s) - rgb color model , hue , subpixel rendering , liquid crystal display , computer science , computer graphics (images) , computer vision , artificial intelligence , thin film transistor , pixel , high color , color filter array , color gel , materials science , optoelectronics , color image , image processing , image (mathematics) , layer (electronics) , composite material
Although LCDs are widely used in power‐consumption critical applications, they are not very energy‐efficient. The largest absorber of light is the color filter. We developed a TFT‐LCD with four‐color subpixels: red, green, blue and white. The addition of the white subpixel greatly enhanced the light efficiency: up by 50%. The RGB‐to‐RGBW mapping algorithm was designed so that the hue and saturation remains unchanged from the original color. The result is a very bright display with color characteristic almost identical to RGB LCDs.