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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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.
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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