Liquid crystal display element with electrode having concave-convex surface at liquid crystal side
AssigneeAG Technology Co., Ltd.
InventorsYoshiharu Ooi, Yoshinori Hirai, Satoshi Niiyama, Tsuneo Wakabayashi
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Abstract
A liquid crystal display element comprises a liquid crystal and solidified matrix composite, in which liquid crystal is dispersed and held in a solidified matrix, which is interposed between a pair of substrates with electrodes at least one of which is transparent, wherein at least one of the substrates with electrodes has a fine concave-convex electrode surface at the side for the liquid crystal and solidified matrix composite.
Claims32
A liquid crystal display element comprising a pair of substrates, at least one of which is transparent, and a pair of electrodes in opposition to each other, at least one of which is transparent, and a liquid crystal and solidified matrix composite, in which liquid crystal is dispersed and held in a solidified matrix, which is interposed between said pair of electrodes, characterized in that the distances between the electrodes differ at various portions, wherein at least one of the electrodes has a fine concave-convex surface at the side facing the liquid crystal and solidified matrix composite, and the relation 0.03.multidot.G<Ra<0.3.multidot.G is satisfied where G is the mean electrode gap and Ra is the mean distance from a peak convex portion of said concave-convex surface to a plane parallel to said pair of substrates and cutting through the concave-convex surface such that the amount of the surface above the plane is the same as that below the plane, and the pitch P of said concave-convex surface is two or more times as large as the means diameter R.sub.LC of liquid crystal droplets of said liquid crystal dispersed in said solidified matrix.
A liquid crystal display element comprising a first transparent substrate having a transparent first electrode, and a second substrate having a second electrode in opposition to the first electrode, and a liquid crystal and solidified matrix composite which is interposed between said first and second electrodes, wherein liquid crystal is dispersed and held in a solidified matrix, characterized in that the distances between the electrodes differ at various portions, wherein the first electrode has a concave-convex electrode surface, and the second substrate has a reflecting layer, and the relation 0.03.multidot.<Ra<0.3.multidot.G is satisfied where G is the mean electrode gap and Ra is the mean distance from a peak portion of said concave-convex surface to a plane parallel to said pair of substrates and cutting through the concave-convex surface such that the amount of the surface above the plane is the same as that below the plane, and the pitch P of said concave-convex surface is two or more times as large as the means diameter R.sub.LC of liquid crystal droplets of the liquid crystal dispersed in said solidified matrix.
A liquid crystal display apparatus comprising a liquid crystal display element which has a pair of substrates, a pair of electrodes, at least one of which is transparent, and a liquid crystal and solidified matrix composite disposed between the pair of electrodes, wherein the liquid crystal and solidified matrix composite includes liquid crystal dispersed and held in a solidified matrix, and a driving circuit to drive the liquid crystal display element, characterized in that the distances between the electrodes differ at various portions wherein at least one of the electrodes has a concave-convex surface at the side facing the liquid crystal and solidified matrix composite, wherein the relation 0.03.multidot.G<Ra<0.3.multidot.G is satisfied where G is the means electrode gap and Ra is the mean distance from a peak convex portion of said concave-convex surface to a plane parallel to said pair of substrates and cutting through the concave-convex surface such that the amount of the surface above the plane is the same as that below the plane, and the pitch P of said concave-convex surface is two or more times as large as the means diameter R.sub.LC of liquid crystal droplets of said liquid crystal dispersed in said solidified matrix.
A projection type liquid crystal display apparatus which comprises:
- a liquid crystal display element comprising a liquid crystal and solidified matrix composite, in which liquid crystal is dispersed and held in a solidified matrix composite, which is interposed between a pair of substrates with electrodes, at least one of which is transparent, characterized in that at least one of the electrodes has a concave-convex electrode surface at the side facing the liquid crystal and solidified matrix composite,
- a driving circuit to drive the liquid crystal display element,
- a projection light source for emitting light to the liquid crystal display element, and
- a projection optical system for projecting the light from the liquid crystal display element onto a projection screen, wherein the relation 0.03.multidot.G<Ra<0.3.multidot.G is satisfied, where G is the mean electrode gap, and Ra is the mean distance from a peak convex portion of said concave-convex surface to a plane parallel to said pair of substrates and cutting through the concave-convex surface such that the amount of the surface above the plane is the same as that below the plane, and the pitch P of said concave-convex surface is two or more times as large as the mean diameter R.sub.LC of liquid crystal droplets of the liquid crystal dispersed in said solidified matrix.
Dependencies are inferred from the claim text.