Liquid crystal-type nonglare mirror
AssigneeSharp Kabushiki Kaisha
InventorYoshihiro Shirai
Life of this patent
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Abstract
A liquid crystal-type nonglare mirror suitable for room mirrors or for vehicles, which effectively prevents the formation of interference fringes under light sources, such as sodium lamps, halogen lamps and the like. The mirror is composed of a transparent electrode base, a liquid crystal and a reflective electrode base, in which the liquid crystal is placed between the above electrode bases. The technical effects may be provided by the limitation that rubbing directions of both electrodes are nonparallel and that the twist angle of the liquid crystal is about 360.degree.. The technical effects may also be obtained from the insertion of a silicon nitride layer in the construction of the mirror.
Claims4
A liquid crystal nonglare mirror comprising a guest-host liquid crystal between a transparent electrode base and a reflective electrode base, in which both bases of which rubbing directions are nonparallel are subjected to a treatment for homogeneous alignment and a twist angle of the liquid crystal is about 360.degree. in order to prevent interference fringes.
A liquid crystal nonglare mirror for preventing interference fringes comprising a guest-host liquid crystal between a transparent electrode substrate and a reflective electrode substrate, in which at least one of the transparent electrode base and the reflective electrode base is composed of a transparent electrode, a silicon nitride insulation layer and a polyimide orientation layer in this order.
Dependencies are inferred from the claim text.