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US 9,285,644 B2Granted
Substrate for liquid crystal display device, and liquid crystal display device
AssigneeToppan Printing Co., Ltd.
InventorsHidesato Hagiwara, Mie Shimizu, Kenzo Fukuyoshi, Takao Taguchi
Life of this patent
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Abstract
In a substrate for a liquid crystal display device, a black matrix, a transparent electroconductive film and a resin layer are formed above a transparent substrate. The black matrix is a light-shielding layer in which light-shielding pigments are dispersed in a resin, and includes openings. The resin layer is formed above the transparent substrate including the black matrix and the transparent electroconductive film, forms a convex part above the black matrix, and forms, in a region that passes through a center of each of the openings in the black matrix, a concave part.
Claims7
A liquid crystal display device, comprising:
- a liquid crystal display device substrate comprising
- a transparent substrate,
- a black matrix which is formed on the transparent substrate, is a light-shielding layer in which light-shielding pigments are dispersed in a resin, and comprises openings,
- a transparent electroconductive film which is formed on the black matrix to cover the black matrix and the openings,
- a resin layer formed above the transparent substrate, the black matrix and the transparent electroconductive film, the resin layer comprising a convex part above the black matrix, and comprising, in a region that passes through a center of each of the openings in the black matrix, a concave part that is in a linear form or cross form when viewed in plan, and the resin layer being thin or absent in the concave part and the convex part, and
- rectangular pixels formed above the transparent substrate;
- an array substrate which is arranged opposite to the liquid crystal display device substrate, and comprising liquid-crystal-driving elements arranged in a matrix form thereon;
- and
- liquid crystals which are held between the liquid crystal display device substrate and the array substrate, wherein
- the array substrate comprises a first electrode and a second electrode to which different electric potentials are applied in order to drive each of the rectangular pixels,
- when a voltage for driving the liquid crystals is applied to the first and second electrodes, liquid crystal molecules act to be inclined from the concave part of the resin layer into a direction which is Parallel to the concave part and is a direction toward the black matrix near the liquid crystal molecules when viewed in plan,
- the first electrode and/or the second electrode is/are not arranged at a position of the array substrate which corresponds to a center of a width of a pattern of the black matrix, and
- the first electrode is formed at a position other than a position which corresponds to a center of a width of a pixel line of the black matrix.
10 more elements
A liquid crystal display device, comprising:
- a color filter substrate and an array substrate,
- wherein the color filter substrate and the array substrate are opposed and stuck to each other via liquid crystals,
- the color filter substrate comprises
- a transparent substrate,
- a black matrix which is formed on the transparent substrate, is a light-shielding layer in which light-shielding pigments are dispersed in a resin, and comprises rectangular openings,
- a transparent electroconductive film which is formed on the black matrix to cover the black matrix and the openings,
- a resin layer formed above the transparent substrate, the black matrix and the transparent electroconductive film, the resin layer comprising a convex part above the black matrix, and comprising, in a region that passes through a center of each of the openings in the black matrix, a concave part that is in a linear form or cross form when viewed in plan, and the resin layer being thin or absent in the concave part and the convex part, and
- color pixels, formed above the transparent substrate,
- the array substrate comprises elements driving the liquid crystals and being arranged in a matrix form,
- the resin layer is arranged directly or indirectly above the transparent electroconductive film,
- the convex part is protruded from a surface of the resin layer,
- the concave part is formed in a region that passes through a center of each of the rectangular openings in the black matrix,
- the array substrate comprises a comb-teeth-form first electrode and a comb-teeth-form second electrode each of which comprises electroconductive metal-oxides which is transparent in a range of visible wavelengths,
- the second electrode is arranged below the first electrode via an insulating layer between the first and second electrodes, and
- the second electrode is protruded from an end of the first electrode into a direction along which the liquid crystals are inclined.
12 more elements
Dependencies are inferred from the claim text.