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AssigneeDai Nippon Printing Co., Ltd.
InventorsTakuya Hamaguchi, Hiroyuki Kusukawa, Yasutomo Teshima, Ryutaro Harada, Satoshi Mitamura
Estimating the term…
The black matrix substrate used for a flat display such as a liquid crystal display panel, an imager such as CCD or a color filter such as a color sensor comprises a transparent substrate and a light-shielding layer formed on the transparent substrate, and the light-shielding layer contains metallic particles inside thereof, whereby the light-shielding layer can show high light-shielding properties and a low reflectance. In the liquid crystal display panel comprising substrates facing each other and a liquid crystal sealed between the substrates, a semiconductor device provided on one of the substrates has a light-shielding layer which contains metallic particles inside thereof, whereby the semiconductor device can be effectively protected and the liquid crystal display panel has a high contrast.
A black matrix substrate comprising a transparent substrate and a light-shielding layer provided on said transparent substrate and formed of a resin layer containing metallic particles formed inside thereof, wherein said resin layer is formed by exposing, to light, a photosensitive resist layer formed on said transparent substrate and containing a hydrophilic resin through a photo mask having a pattern for the light-shielding layer and, thereafter, carrying out an electroless plating process to thereby deposit the metallic particles in the resist layer.
A liquid crystal display panel comprising substrates facing each other and a liquid crystal sealed between said substrates, wherein at least one of said substrates is provided with a semiconductor device having a light-shielding layer which is formed of a resin layer containing metallic particles formed inside thereof, and said resin layer is formed by exposing, to a light, a photosensitive resist layer formed on a side of the semiconductor device provided for the substrate and containing hydrophilic resin through a photo mask having a pattern for the light-shielding layer and, thereafter, carrying out an electroless plating process to thereby deposit the metallic particles in the resist layer.
Dependencies are inferred from the claim text.