Video‐compatible subtractive color projection with cholesteric liquid‐crystal band‐modulation filters | Zendy

Fünfschilling Jürg | Zendy; Schadt Martin | Zendy; Seiberle Hubert | Zendy

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Video‐compatible subtractive color projection with cholesteric liquid‐crystal band‐modulation filters

Author(s) -

Fünfschilling Jürg,

Schadt Martin,

Seiberle Hubert

Publication year - 1996

Publication title -

journal of the society for information display

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.578

H-Index - 52

eISSN - 1938-3657

pISSN - 1071-0922

DOI - 10.1889/1.1984987

Subject(s) - subtractive color , polarizer , optics , materials science , contrast ratio , liquid crystal , cholesteric liquid crystal , projector , gamut , color gel , white light , projection (relational algebra) , halftone , optical filter , optoelectronics , pixel , computer science , physics , birefringence , algorithm , layer (electronics) , composite material , thin film transistor

— A highly compact single‐beam cholesteric liquid‐crystal video projection optics is presented. Cholesteric filters in series with liquid‐crystal light modulators are switched pixel by pixel in a subtracting color‐modulation scheme. No absorbing polarizers or dye filters are used. The projector exhibits an excellent efficiency of 20% for white light, high contrast, and full‐color saturation.

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