Patent ID: 9010979
Filing Date: 2015-04-21
Classification: G02B

Abstract:
1. A composite optical film, comprising: a brightness enhancement film having a top surface and a bottom surface opposite to each other, and the top surface of the brightness enhancement film having a plurality of brightness enhancement structures parallel to each other; a high refractive-index layer disposed below the bottom surface and including a film and a plurality of inorganic nano-particles disposed within the film; and an intermediate layer disposed between the brightness enhancement film and the high refractive-index layer, wherein the high refractive-index layer has a first refractive index, the intermediate layer has a second refractive index, the first refractive index is higher than the second refractive index, and a difference between the first refractive index and the second refractive index is greater than or equal to 0.2, wherein a top surface of the high refractive-index layer facing the intermediate layer and a bottom surface of the intermediate layer are conformally in contact with each other to form an interface, and the interface has a plurality of convex surfaces.