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68.4: Hybrid Color Reflective LCD with a White Subpixel
Author(s) -
Asao Yasufumi
Publication year - 2006
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 - 10.1889/1.2433428
Subject(s) - subpixel rendering , magenta , rgb color model , liquid crystal display , brightness , computer vision , artificial intelligence , colored , primary color , computer science , color balance , computer graphics (images) , optics , materials science , color image , pixel , image processing , physics , image (mathematics) , inkwell , composite material , speech recognition , operating system
The hybrid color LCD (HC‐LCD) mode can display three primary colors, RGB, using only two colored subpixels, green and magenta). On the other hand, there are some reports in which an additional white subpixel to the conventional RGB color filter (CF) method is added in order to obtain a color display with higher brightness). The author has proposed the displaying method of HC‐LCD with a white subpixel, which consists of three subpixels, green, magenta and white. This paper clarifies not only the improvement of the brightness but also the compatibility of CF photo masks to that of the RGB method, cost reduction of CF process, increase of available colors and higher resolution especially in displaying monochrome characters. The author has also prototyped the reflective TFT HC‐LCD with a white subpixel and confirmed the effectiveness of this method.