Optically responsive full color shifting colloidal liquid
AssigneeThe University of Hong Kong
InventorsJinyao TANG, Jing ZHENG
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Abstract
A chromic liquid capable of responding to and reproducing external optical color illumination is formed as a TiO2 colloid imbued with three sensitizing dyes. The dyes are (a) SQ2 (5-carboxy-2-[[3-[(2,3-dihydro-1,1-dimethyl-3-ethyl-1H-benzo[e]indol-2-ylidene)methyl]-2-hydroxy-4-oxo-2-cyclobuten-1-ylidene]methyl]-3,3-dimethyl-1-octyl-3H-indolium), (b) LEG4 (3-{6-{4-[bis(2′,4′-dibutyloxybiphenyl-4-yl)amino-]phenyl}-4,4-dihexyl-cyclopenta-[2,1-b:3,4-b′]dithiophene-2-yl}-2-cyanoacrylic acid) and (c) L0 (4-(diphenylamino) phenylcyanoacrylic acid). The liquid reproduces cyan, magenta and yellow color or a mixture thereof in response to exposure to illumination by light of various colors.
Claims8
A chromic liquid capable of responding to and reproducing external optical color illumination comprising a colloid imbued with at least three colored dyes selected on the basis of a color system in order to provide a full gamut of color output.
A color display comprising:
- a transparent container containing a colloid imbued with at least three colored dyes selected on the basis of a color system;
- a first projector for projecting a color image onto the container for a fixed period of time;
- and
- three light sources of different color which direct their light through color related spike optical filters and then into the container for a certain period of time.
Dependencies are inferred from the claim text.