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US 2011/0032453 A1Published application
Diffusion sheet and liquid crystal display device with the same
AssigneeLG Display Co., Ltd.
InventorsChang Yul MOON, Young Hun Jeong, Sun Woong Kim
Life of this patent
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Abstract
A diffusion sheet adapted to minimize brightness difference between lights progressing in its oblique directions is discussed. The diffusion sheet according to an embodiment includes: a base film; a first diffusion material layer formed on an upper surface of the base film and configured to have a haze range of about 10˜40%; and a second diffusion material layer formed on a lower surface of the base film.
Claims23
A liquid crystal display device comprising:
- a liquid crystal display panel;
- a light source configured to emit light toward the liquid crystal display panel;
- a first diffusion sheet configured to scatter the light from the light source;
- a converging sheet disposed on the first diffusion sheet and configured to converge the scattered light;
- and
- a second diffusion sheet disposed on the converging sheet and configured to have a haze range of about 10%˜40% and to improve visibility of the liquid crystal display panel in accordance with a viewing angle.
3 more elements
A diffusion sheet comprising:
- a base film;
- a first diffusion material layer formed on an upper surface of the base film and configured to have a haze range of about 10˜40%;
- and
- a second diffusion material layer formed on a lower surface of the base film.
1 more element
A method of manufacturing diffusion sheet, comprising:
- preparing a base film;
- forming a first diffusion material layer of a haze range of about 10˜40% on an upper surface of the base film;
- and
- forming a second diffusion material layer formed on a lower surface of the base film.
1 more element
Dependencies are inferred from the claim text.