Abstract: A liquid crystal display means which employs a mixture of a pleochroic dye and cholesteric or chiral, nematic liquid crystals as a dielectric in a cell whose optical density may be changed by application thereto of an electric field, and in which the mixture contains a substance which makes the characteristic pitch of the liquid crystals such that an improved switching response is achieved, and the molecular structure of the liquid crystals is such that improved contrast is achieved, is disclosed.

Abstract: A fluorescent liquid crystal display composition comprising a liquid crystal material absorbing little or no near ultraviolet light and a fluorescent material capable of emitting visible fluorescence, and a fluorescent liquid crystal display device comprising two parallel plates with the composition placed therebetween, at least one pair of electrodes and a voltage source for applying voltage to the composition to provide a self-luminescent brilliant active display with low power consumption by varying the luminescence efficiency of the fluorescent material.

Abstract: A liquid crystal display device containing a fluorescent material comprises a pair of electrodes, a pair of substrates, and an element for making liquid crystal mixtures in such a molecular orientation that the fluorescent materials generate no fluorescence at a selected portion of the pair of electrodes and accordingly no fluorescence penetrates through the liquid crystal mixtures. The element comprises a liquid crystal molecule orientation layer made of a layer of surfactant or electric power sources. The liquid crystal molecule orientation is formed over the pair of electrodes to produce a homeotropic orientation of a nematic mesophase. The electric power sources are applied to the pair of electrodes to form the homeotropic orientation of the nematic mesophase in a background area of the display device opposed to a display area of it.

Abstract: A method for making a multi-layered liquid crystal display panel is provided herein. More particularly, the method enables double-sided rubbing on at least one of a plurality of stacked glass supports and avoids possible flaws in a rubbed surface through the utilization of a protective coating covering the rubbed surface, thus providing liquid crystal display panels with excellent image quality. The protective coating is of sufficient mechanical strength and easily removable by means of a remover.

Abstract: A twisted nematic field effect mode liquid crystal display cell comprises a liquid crystal layer sandwiched between front and rear substrates on which transparent electrodes are formed, a front polarizer disposed in front of the front substrate, and a rear polarizer disposed at the back of the rear substrate. The rear substrate comprises a glass plate, and the front substrate comprises a fiber plate. The fiber plate comprises a plurality of optical fibers of which axes are perpendicular to the plane determined by the liquid crystal layer.