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US 8,045,092 B2Granted
Multifunctional optical sheet and liquid crystal display device including the same
AssigneeLG Display Co., Ltd.
InventorsYoung-Hun Jeong, Hyeuk-Chan Kwon, Man-Hoan Lee
Life of this patent
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Abstract
A multifunctional optical sheet for a liquid crystal display device includes a substrate diffusing incident light; a light-concentrating layer on the substrate and including a plurality of patterns that arranged to form alternating peaks and valleys; and reflection patterns between the substrate and the light-concentrating layer corresponding to the valleys of the light concentrating layer.
Claims17
A multifunctional optical sheet for a liquid crystal display device, comprising:
- a substrate diffusing incident light;
- a light-concentrating layer on the substrate and including a plurality of patterns that arranged to form alternating peaks and valleys;
- and
- a reflection layer between the substrate and the light-concentrating layer, the reflection layer including reflection patterns and a transparent insulating material between adjacent reflection patterns, the reflection patterns corresponding to the valleys of the light concentrating layer, respectively,
- wherein an aperture ratio of the multifunctional optical sheet due to the reflection patterns is within a range of about 30% to about 40%.
2 more elements
A liquid crystal display device, comprising:
- a liquid crystal panel;
- a multifunctional optical sheet under the liquid crystal panel, the multifunctional optical sheet including a light-diffusing means, a light-concentrating means including peaks and valleys alternating each other, and a reflection layer between the light-diffusing means and the light-concentrating means, the reflection layer including reflection patterns and a transparent insulating material between adjacent reflection patterns, the reflection patterns corresponding to the valleys, respectively, wherein an aperture ratio of the multifunctional optical sheet due to the reflection patterns is within a range of about 30% to about 40%;
- at least one lamp under the multifunctional optical sheet;
- and
- a reflection sheet under the at least one lamp.
2 more elements
Dependencies are inferred from the claim text.