| abstract |
This dispersion liquid composition for black matrixncomprises; manganese oxide having an average particlendiameter in the range of 50 to 2000 nm, or solid solution ofnmanganese oxide and ferric oxide having an average particlendiameter in the range of 50 to 2000 nm and a manganesencontent in the range of 15 to 70 % by weight; at least onenkind of dispersing agent selected from a group of water-solublenacrylic resin, sodium salt, ammonium salt ornpotassium salt of water-soluble acrylic resin, and sodiumnsalt, ammonium salt or potassium salt of polycarboxylic acidnor ligninsulfonic acid or bisphenolsulfonic acid; and water,nor a solvent mixture of water and an organic solventncompatible with water. By employing such a dispersion liquidncomposition for black matrix, light reflectivity of a lightnabsorption layer of an interface with a panel is remarkablynreduced. Accordingly, in a display device such as a colorncathode ray tube, a display surface in which superposition ofnambient light is difficult to occur is realized. |