Two-Field Scheme: Spatiotemporal Modulation for Field Sequential Color LCDs

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...

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Bibliographic Details
Published in:Journal of display technology 2009-10, Vol.5 (10), p.385-390
Main Authors: Yu-Kuo Cheng, Yi-Pai Huang, Yi-Ru Cheng, Shieh, H.-P.D.
Format: Article
Language:English
Subjects:
Acceptability
Cathode ray tubes
Color
Color break-up (CBU)
Degrees of freedom
Display devices
FCC
field sequential color (FSC)
Liquid crystal displays
Mathematical analysis
Modulation
Optical crosstalk
Optical filters
Optical mixing
Optical sensors
Power capacitors
spatially modulated backlight
Spatiotemporal phenomena
Stimuli
Throughput
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Description
Summary: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 (DeltaE 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.
ISSN:1551-319X
1558-9323
DOI:10.1109/JDT.2009.2026186