Patent ID: 9069197
Filing Date: 2015-06-30
Classification: B29C,B29K,B29L,G02B,G02F,Y10T

Abstract:
1. An optical layered body configured to be disposed on a surface of an image display device, the optical layered body comprising: a light-transmitting substrate having in-plane birefringence; an optical functional layer disposed on one surface of the light-transmitting substrate; and a primer layer disposed between the light-transmitting substrate and the optical functional layer, the light-transmitting substrate having a slow axis that is along a direction showing a greater refractive index, the optical layered body being configured to be disposed on a display screen of the image display device such that the slow axis is in parallel with a vertical direction of the display screen, and the primer layer having a refractive index np that falls between a refractive index ny in a fast axis direction of the light-transmitting substrate and a refractive index nx in the slow axis direction of the light-transmitting substrate ny<np<nx.