Patent ID: 8687153
Filing Date: 2014-04-01
Classification: G02F

Abstract:
1. A panel substrate for use in a display panel, comprising a transparent substrate and a light blocking layer which includes two layers of different optical densities, wherein a low optical density layer that is one of the two layers of different optical densities which has a lower optical density is interposed between a high optical density layer that is the other one of the two layers which has a higher optical density and the transparent substrate, and a sum of an optical density of the low optical density layer and an optical density of the high optical density layer is not less than 3.0, a refractive index of the high optical density layer is not less than 1.50 and not more than 2.00, and the optical density of the low optical density layer is not less than 0.4 and not more than 2.0.