Browsing by Author "Cheng, Yi-Ru"

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Two-Color-Field Sequential Method for Color-Filter-Free MVA-LCDs
(2009)
Cheng, Yu-Kuo
;
Cheng, Yi-Ru
;
Huang, Yi-Pai
;
Shieh, Han-Ping D.
;
光電工程學系
A novel displaying method, two-color-field driving scheme, was proposed for field-sequential-color LCDs without color filters. The least number of fields alleviated the demand for fast response LC modes in sequential-type LCDs. The proposed method reproduced full color images with acceptable calorimetric reproduction accuracy, average Delta E(00ave) < 3. Furthermore, less chrominance difference between the two fields was beneficial to suppress color break-up.
Two-Field Scheme: Spatiotemporal Modulation for Field Sequential Color LCDs
(2009-10-01)
Cheng, Yu-Kuo
;
Huang, Yi-Pai
;
Cheng, Yi-Ru
;
Shieh, Han-Ping D.
;
光電工程學系
A novel displaying method, two-field driving scheme, was proposed for field sequential color LCDs without color filter. A spatially modulated color backlight provided multi-primary low-resolution optical stimuli, which were then compensated by an LC panel to display detailed colorful images. That is, the manipulation on three (or more) spatial and two temporal degrees of freedom was sufficient to convey full color information. The simulation results showed that the proposed method achieved acceptable color reproduction accuracy, average CIEDE2000 color difference (Delta E(00)) < 3. The least number of fields particularly alleviated the demand for fast-response LC modes in sequential-type LCDs. Furthermore, color break-up suppression was observed due to less chrominance difference between the two fields.