Optical film structure
AssigneeProbright Technology Inc.
InventorsPi Ta Huang, Po Yin Kuo
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Abstract
The present invention provides an optical film structure, which comprises a base layer, a plurality of optical layers, and a prism layer. A first optical structure is disposed below the base layer such that the first optical structure can concentrate and alter an incident light source. By using the structure of the plurality of optical layers, the ineffective polarized light of the light source can be converted into effective polarized light. Furthermore, the first optical structure adjusts a focal point of the incident light source and thus increasing the luminous flux and brightness of the light source.
Claims11
An optical film structure, comprising:
- a base layer, comprising a main body and a first optical structure, said first optical structure disposed below said main body;
- a plurality of optical layers, disposed on said base layer, including a first optical layer and a second optical layer, a first material of said first optical layer having a first refractive index, a second material of said second optical layer having a second refractive index, and said first optical layer and said second optical layer including a plurality of optical particles, respectively;
- and
- a prism layer, disposed on said plurality of optical layers;
- wherein when light from a backlight source is incident on said base layer from the bottom of said base layer, the incident light is refracted by said first optical structure and produces a focal point, the refracted light enters said plurality of optical layers;
- and by using said plurality of optical particles, said first refractive index, and said second refractive index, a first polarization phase and a second polarization phase of said incident light are adjusted to become the same emergent-light phase before passing through said prism layer.
Dependencies are inferred from the claim text.