Liquid crystal display device
First Claim
Patent Images
1. A liquid crystal display device comprising:
- a liquid crystal display panel;
a light source for providing light beams to irradiate the liquid crystal display panel; and
an optical sheet positioned between the liquid crystal display panel and the light source and having a first surface facing the light source, the first surface having a plurality of prisms for totally reflecting portions of ambient light beams that have passed through the liquid crystal display panel to irradiate the liquid crystal display panel and to increase a brightness of the liquid crystal display device by the portions of ambient light beams, each of the prisms comprising a first plane and a second plane, an included angle between the first plane and the second plane being in the range between 80° and
130°
.
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Accused Products
Abstract
A liquid crystal display device includes a liquid crystal display panel, a light source for providing light beams to irradiate the liquid crystal display panel, and an optical sheet positioned between the liquid crystal display panel and the light source and having a first surface facing the light source. Additionally, the first surface has a plurality of prisms for totally reflecting portions of ambient light beams that have passed through the liquid crystal display panel to irradiate the liquid crystal display panel.
18 Citations
20 Claims
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1. A liquid crystal display device comprising:
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a liquid crystal display panel; a light source for providing light beams to irradiate the liquid crystal display panel; and an optical sheet positioned between the liquid crystal display panel and the light source and having a first surface facing the light source, the first surface having a plurality of prisms for totally reflecting portions of ambient light beams that have passed through the liquid crystal display panel to irradiate the liquid crystal display panel and to increase a brightness of the liquid crystal display device by the portions of ambient light beams, each of the prisms comprising a first plane and a second plane, an included angle between the first plane and the second plane being in the range between 80° and
130°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A liquid crystal display device comprising:
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a liquid crystal display panel; and an optical sheet having a first surface facing the liquid crystal display panel and a second surface opposed to the first surface, the second surface comprising a plurality of prisms for totally reflecting portions of ambient light beams that have passed through the liquid crystal display panel to irradiate the liquid crystal display panel and to increase a brightness of the liquid crystal display device by the portions of ambient light beams, each of the prisms comprising a first plane and a second plane, an included angle between the first plane and the second plane being in the range between 80° and
130°
. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification