| 摘要 |
PURPOSE:To prevent almost completely the lowering of visibility due to a light reflaction of a display surface by using a thin film composed of polyvinyl butyral resin which has almost the same extent of the refractive index to those of a glass substrate and a polarizing plate, and has a less tendency for generating light absorption at the visible ray range as an intermediate film. CONSTITUTION:The thin film of the polyvinyl butyral resin which has almost the same extent of the refractive index to that of the transparent glass substrate and does not display almost light absorption at the visible ray range is used as the intermediate film 2. The glass plate 1 which is effected an anti-reflection treatment by etching, vacuum-depositing, or sputtering, is stuck directly on an upper surface of a glass substrate 4 placed in the upper side of the titled device or the polarizing plate 3 by means of a vacuum-thermocompression bonding method to form the most outer surface of the terminal display device. Thus, the surface reflaction does not occur. Further, since any air layer does not present in the inside of the titled device, the refractive indexes of a glass, a butyral resin and a polarizing plate are closely with each other, the surface reflaction and the back reflaction in the inside of the titled device are remarkably reduced. |
