Brightness enhancement film having a light-guiding structure
First Claim
Patent Images
1. A brightness enhancement film having a light-guiding structure comprising:
- a substrate having a light incident surface and a light emission surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
a light-refracting layer arranged on the light incident surface of the substrate, the light-refracting layer providing changes in curvature so as to refract the light projecting from a light source;
a light-guiding layer formed between the light incident surface and the light emission surface of the substrate so as to guide the refracted light transmitting from the light incident surface to the light emission surface; and
a reinforcing layer formed on the light emission surface of the substrate, said reinforcing layer being made from a second transparent material while the light-guiding layer of the substrate is made from the first transparent material;
wherein the reinforcing layer has a thickness which can be selectively changed depending on that of the light-guiding layer.
3 Assignments
0 Petitions
Accused Products
Abstract
A brightness enhancement film having a light-guiding structure includes a substrate, which has a light-guiding layer and a plurality of light-refracting microstructures. The substrate has a light incident surface and a light emission surface opposite thereto. The light-refracting microstructures are arranged on the light incident surface of the substrate and are provided for varying surface curvatures to refract incident light. The light-guiding layer is arranged on the light emission surface of the substrate and is provided for guiding refracted light to generate homogeneous light to emit therefrom.
-
Citations
32 Claims
-
1. A brightness enhancement film having a light-guiding structure comprising:
-
a substrate having a light incident surface and a light emission surface, the substrate made from a first transparent material which permits penetrating light through the substrate; a light-refracting layer arranged on the light incident surface of the substrate, the light-refracting layer providing changes in curvature so as to refract the light projecting from a light source; a light-guiding layer formed between the light incident surface and the light emission surface of the substrate so as to guide the refracted light transmitting from the light incident surface to the light emission surface; and a reinforcing layer formed on the light emission surface of the substrate, said reinforcing layer being made from a second transparent material while the light-guiding layer of the substrate is made from the first transparent material; wherein the reinforcing layer has a thickness which can be selectively changed depending on that of the light-guiding layer. - View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
5. A brightness enhancement film having a light-guiding structure comprising:
-
a substrate having a light incident surface and a light emission surface, the substrate made from a first transparent material which permits penetrating light through the substrate; a light-refracting layer arranged on the light incident surface of the substrate, the light-refracting layer providing changes in curvature so as to refract the light projecting from a light source; a light-guiding layer formed between the light incident surface and the light emission surface of the substrate so as to guide the refracted light transmitting from the light incident surface to the light emission surface; and a reinforcing layer formed on the light emission surface of the substrate, said reinforcing layer being made from a second transparent material while the light-guiding layer of the substrate is made from the first transparent material; wherein the second transparent material of the reinforcing layer has a rate of shrinkage substantially approximate to that of the substrate. - View Dependent Claims (31, 32)
-
-
6. A brightness enhancement film having a light-guiding structure comprising:
-
a substrate having a light incident surface and a light emission surface, the substrate made from a first transparent material which permits penetrating light through the substrate; a light-refracting layer arranged on the light incident surface of the substrate, the light-refracting layer providing changes in curvature so as to refract the light projecting from a light source; a light-guiding layer formed between the light incident surface and the light emission surface of the substrate so as to guide the refracted tight transmitting from the light incident surface to the light emission surface; and a reinforcing layer formed on the light emission surface of the substrate, said reinforcing layer being made from a second transparent material while the light-guiding layer of the substrate is made from the first transparent material; wherein the first transparent material has a first refractive index and the second transparent material has a second refractive index, the first refractive index is greater than the second refractive index.
-
Specification