Complementary color liquid crystal display
First Claim
1. A liquid crystal color device, comprising at least one pel means for affecting light incident thereon to produce output light,said at least one pel means including at least two color subsets, one subset including a first color and the complement thereof, and the other including a second color and the complement thereof, with said subsets being arranged in optical additive relation, andwherein each of said subsets comprises one or more volumes of liquid crystal material in a containment medium, and said containment medium comprises surface means for effecting a structural alignment of said liquid crystal material due to surface interaction with said surface means to obtain selectively substantial filtering or non-filtering of said incident light as a function of a prescribed input.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid crystal color device (10) includes at least one pel (14) for affecting light (36) incident thereon to produce output light (38), the pel includes three complementary color subsets (30, 32, 34), each having controllable color filtering capability in the respective complementary colors thereof. The color subsets are arranged in optical additive relation, and the color subsets include complementary color parts (30a, 30b, 32a, 32b, 34a, 34b) which are arranged, respectively, in optical serial/subtractive relation. The color filtering function is carried out using liquid crystal materials with respective pleochroic dyes. A method of parametric color control of a liquid crystal device, formed of plural picture elements, each picture element including plural pairs of complementary color filters, comprising directing light to or through an array of such electrically controllable pairs of complementary color filters, and controlling the filtering characteristics of at least one of such filters.
-
Citations
41 Claims
-
1. A liquid crystal color device, comprising at least one pel means for affecting light incident thereon to produce output light,
said at least one pel means including at least two color subsets, one subset including a first color and the complement thereof, and the other including a second color and the complement thereof, with said subsets being arranged in optical additive relation, and wherein each of said subsets comprises one or more volumes of liquid crystal material in a containment medium, and said containment medium comprises surface means for effecting a structural alignment of said liquid crystal material due to surface interaction with said surface means to obtain selectively substantial filtering or non-filtering of said incident light as a function of a prescribed input.
-
8. The device of claim 74, wherein said plurality of volumes of liquid crystal material are operable to discriminate as a function of at least one of volume size and response of the liquid crystal in a volume to voltage and/or frequency.
-
10. A liquid crystal color device, comprising
at least one pel means for affecting light incident thereon by transmitting and/or filtering such light to produce output light, said at least one pel means including at least two color subsets, one subset including a first color and the complementary color of that color, and the other including a second color and the complementary color of that color, said subsets being responsive to an input to alter light transmitting or absorbing properties thereof, the color and complementary color of each subset being arranged in optically subtractive relation, said subsets being arranged in optical additive relation such that the optical outputs from different subsets within a pel means combine additively, and said one subset being optically cooperative with said other subset selectively to contribute the color of said second color of light in the output light of said pel means.
-
26. A method of displaying a multicolor output, comprising
selectively filtering one portion of multicolor incident light by a first controllable filter of a first color and the complementary color thereof, selectively filtering another portion of multicolor incident light by a second controllable filter of a second color and the complementary color thereof, wherein the complementary color of the first color includes at least one color component that is the same color as the second color, and selectively using said at least one color component from the complementary color of the first color to contribute said same color to the output.
Specification