Title :
A Controller Design for Color Active-Matrix Displays Using Electrophoretic Inks and Color Filters
Author :
Lu, Chi-Ming ; Wey, Chin-Long
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan
Abstract :
Color active-matrix electrophoretic display (AMEPD) is the inevitable trend for the applications of smart handheld reading devices such as E-books and E-news. This paper presents a normalized RGB color filter (CF) design which achieves 15.66% full white reflectance, 10.80 contrast ratio, and 5.01% of National Television System Committee (NTSC) color gamut. In addition, a new storage method with a minimized lookup table that significantly reduces the data storage space by 2n times of the conventional one, where n is the number of gray levels. The prototyped controller has connected to a 6” color AMEPD panel covered with the normalized RGB structured CF, and an excellent display quality has demonstrated the effectiveness of the proposed controller design.
Keywords :
colour displays; control system synthesis; electrophoretic displays; ink; notebook computers; optical filters; table lookup; E-book; E-new; NTSC; National Television System Committee; RGB CF design; RGB color filter design; color AMEPD; color active-matrix electrophoretic display panel; color gamut; controller design; data storage; electrophoretic ink; lookup table; size 6 inch; smart handheld reading device; Active matrix technology; Color; Gray-scale; Hardware; Image color analysis; MONOS devices; Pixel; Color active-matrix electrophoretic display (AMEPD); LUT; display controller; electronic papers; electronic readers;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2011.2141114
