Liquid crystal display panel and liquid crystal display device
First Claim
1. A liquid crystal display panel comprising:
- first and second substrates arranged so as to be opposed;
a liquid crystal layer filled between the first and second substrates;
a pixel circuit provided on a surface, of the first substrate, at a side of the liquid crystal layer, for applying a voltage to the liquid crystal layer;
a black matrix provided on a surface, of the second substrate, at a side of the liquid crystal layer, made of a laminated film for which a metal oxide film and a metal film have been alternately laminated in two layers or more, having a thickness of 0.2 μ
m or less and an optical density (OD value) of 3 or more;
a color filter provided on a surface, of the second substrate, at a side of the liquid crystal layer;
an overcoat layer provided in a manner covering the black matrix and color filter; and
a granular or columnar spacer provided on the overcoat layer on the black matrix, for holding a fixed gap between the first and second substrates, wherein said liquid crystal display panel is mounted on an In-Plane Switching mode liquid crystal display device.
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Accused Products
Abstract
In a display panel of an active matrix-type liquid crystal display device in an In-Plane Switching mode, a black matrix is formed on the surface of a transparent substrate of a color-filter substrate, the surface being at a side opposed to a TFT substrate. The black matrix is made of a laminated film for which a metal oxide film and a metal film have been alternately laminated in two layers or more. The black matrix has a thickness of 0.2 μm or less and an OD value of 3 or more. Moreover, an electric-field shielding layer made of an ITO film connected to a common electrode is provided on a data line formed on the TFT substrate, via an insulating film. Furthermore, an impurity is doped in a liquid crystal layer so that resistance thereof becomes 1×1011 through 1×1013Ω·cm.
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Citations
16 Claims
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1. A liquid crystal display panel comprising:
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first and second substrates arranged so as to be opposed;
a liquid crystal layer filled between the first and second substrates;
a pixel circuit provided on a surface, of the first substrate, at a side of the liquid crystal layer, for applying a voltage to the liquid crystal layer;
a black matrix provided on a surface, of the second substrate, at a side of the liquid crystal layer, made of a laminated film for which a metal oxide film and a metal film have been alternately laminated in two layers or more, having a thickness of 0.2 μ
m or less and an optical density (OD value) of 3 or more;
a color filter provided on a surface, of the second substrate, at a side of the liquid crystal layer;
an overcoat layer provided in a manner covering the black matrix and color filter; and
a granular or columnar spacer provided on the overcoat layer on the black matrix, for holding a fixed gap between the first and second substrates, wherein said liquid crystal display panel is mounted on an In-Plane Switching mode liquid crystal display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification