Abstract: 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.

Abstract: The color filter according to the present invention contains black matrix formed by polyimide, which contains light shielding pigments such as carbon black, triiron tetraoxide, etc. instead of the black matrix used in the past, which is formed by metal thin film such as chromium on glass substrate. Epoxy type silane coupling agent is mixed with polyimide precursor composition, and this is coated on a glass substrate and then imidized. Thus, the color filter is provided with black matrix having high bonding strength with glass substrate.