Optical film and method for manufacturing the same and liquid crystal display device using the same
First Claim
Patent Images
1. An optical film, comprising:
- a substrate;
a first transmission medium, disposed at the front surface of the substrate and comprising a plurality of embossed microlenses;
a second transmission medium, disposed at the rear surface of the substrate and comprising a plurality of V-shaped prisms;
a third transmission medium disposed between the first transmission medium and the second transmission medium, wherein the material of the third transmission medium differs from the material of the first and second transmission media, and the refractive index of the third transmission medium is smaller than the refractive index of the second transmission medium;
a reflective polarizing film, disposed at the front surface of the first transmission medium; and
wherein the substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet.
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Abstract
An optical film is provided. The optical film includes a substrate, a first transmission medium, second transmission medium, and a reflective polarizing film. The first transmission medium is disposed at the front surface of the substrate and includes a plurality of embossed microlenses. The second transmission medium is disposed at the rear surface of the substrate and comprises a plurality of V-shaped prisms. The reflective polarizing film is disposed at the front surface of the first transmission medium. The substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet.
12 Citations
13 Claims
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1. An optical film, comprising:
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a substrate; a first transmission medium, disposed at the front surface of the substrate and comprising a plurality of embossed microlenses; a second transmission medium, disposed at the rear surface of the substrate and comprising a plurality of V-shaped prisms; a third transmission medium disposed between the first transmission medium and the second transmission medium, wherein the material of the third transmission medium differs from the material of the first and second transmission media, and the refractive index of the third transmission medium is smaller than the refractive index of the second transmission medium; a reflective polarizing film, disposed at the front surface of the first transmission medium; and wherein the substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet. - View Dependent Claims (2, 3, 4)
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5. A liquid crystal display device, comprising:
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a liquid crystal panel module; a light guide, adjacent to the rear surface of the liquid crystal panel module, having a light incident surface and a light-emitting surface adjacent to the light incident surface; a light-emitting element, facing the light incident surface of the light guide plate; and an optical film, disposed at the light-emitting surface of the light guide, or the rear surface of the liquid crystal panel module and comprising; a substrate; a first transmission medium disposed at the front surface of the substrate and comprising a plurality of embossed microlenses; a second transmission medium disposed at the rear surface of the substrate and comprising a plurality of V-shaped prisms; a third transmission medium disposed between the first transmission medium and the second transmission medium, wherein the material of the third transmission medium differs from the material of the second transmission medium, and the refractive index of the third transmission medium is smaller than the refractive index of the second transmission medium; a reflective polarizing film, disposed between the liquid crystal panel module and the first transmission medium; and wherein the substrate, the first transmission medium, and the second transmission medium are bounded to each other to form a unitary sheet. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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Specification