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US 9,541,780 B2Granted
Curved surface backlight unit and curved surface display device including the same
AssigneeLG Display Co., Ltd.
InventorsChang Yul Moon, Young Hun Jeong
Life of this patent
Estimating the term…
Abstract
A curved surface backlight unit is disclosed which includes: a light source; a curved surface light guide plate disposed parallel to the light source; first patterns on one surface of the light guide plate; a reflection plate disposed under the light guide plate; optical sheets disposed on the light guide plate; and second patterns formed on one surface of at least one of the optical sheets.
Claims20
A curved surface backlight unit comprising:
- a light source;
- a curved surface light guide plate disposed parallel to the light source;
- first patterns on one surface of the light guide plate;
- a reflection plate disposed under the light guide plate;
- optical sheets disposed on the light guide plate;
- and
- second patterns formed on one surface of at least one of the optical sheets,
- wherein the light guide plate is defined into a central area and side areas, the first patterns are more densely formed in the central area rather than the side areas, and the second patterns are arranged in such a manner that brightness in side areas of the optical sheet corresponding to the side areas of the light guide plate becomes about 70%˜90% compared to that in a central area of the optical sheet corresponding to the central area of the light guide plate.
5 more elements
A curved surface display device comprising:
- a curved surface liquid crystal display panel;
- and
- a curved surface backlight unit disposed under the curved surface liquid crystal panel and configured to apply light to the curved surface liquid crystal panel,
- wherein the curved surface backlight unit includes a light source, a curved surface light guide plate disposed parallel to the light source, first patterns on one surface of the light guide plate, a reflection plate disposed under the light guide plate, optical sheets disposed on the light guide plate, and second patterns formed on one surface of at least one of the optical sheets, and
- wherein the light guide plate is defined into a central area and side areas, the first patterns are more densely formed in the central area rather than the side areas, and the second patterns are arranged in such a manner that brightness in side areas of the optical sheet corresponding to the side areas of the light guide plate becomes about 70%˜90% compared to that in a central area of the optical sheet corresponding to the central area of the light guide plate.
2 more elements
Dependencies are inferred from the claim text.