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US 2019/0171066 A1Published application
Backlight unit and display device including the same
AssigneeLG Display Co., Ltd.
InventorKiDuck PARK
Life of this patent
Estimating the term…
Abstract
Disclosed are a backlight unit and a display device including the same. The backlight unit and display device can minimize a change in an optical layer when exposed to hostile environments, such as high and low temperature environments. The backlight unit and the display device have a rigid structure, due to the minimized change in the optical layer even when exposed to hostile environments, such as high and low temperature environments.
Claims20
A backlight unit comprising:
- a plurality of light sources emitting light;
- and
- an optical sheet layer including a first optical sheet and a second optical sheet bonded with each other and provided on a path of light exiting from the plurality of light sources,
- wherein the light exited from the light sources enters the first optical sheet;
- the second optical sheet is disposed on the first optical sheet, and the light exited from the first optical sheet enters the second optical sheet, and a void present in a plurality of first recesses depressed inwardly from one surface of the first optical sheet or the second optical sheet, at a bonding area between the first optical sheet and the second optical sheet.
2 more elements
A display device comprising:
- a cover bottom;
- a plurality of light sources disposed above the cover bottom and emitting light;
- an optical sheet layer including a first optical sheet and a second optical sheet bonded with each other and disposed above the plurality of light sources;
- a display panel disposed above the optical sheet layer;
- and
- a guide panel disposed outside the cover bottom and supporting a bottom portion of the optical sheet layer and a bottom portion of the display panel,
- wherein the light exited from the light sources enters the first optical sheet;
- and the second optical sheet disposed on the first optical sheet, wherein the light exited from the first optical sheet enters the second optical sheet;
- and
- a void present in a plurality of first recesses depressed inwardly from one surface of the first optical sheet or the second optical sheet, at a bonding area between the first optical sheet and the second optical sheet.
7 more elements
A backlight unit comprising:
- a plurality of light sources emitting light;
- an optical sheet layer including first and second optical sheets bonded with each other and disposed on a path of light exiting from the plurality of light sources;
- and
- a diffuser plate disposed on the optical sheet layer,
- wherein the light exited from the light sources enters the first optical sheet, the second optical sheet is disposed on the first optical sheet, and the light exited from the first optical sheet enters the second optical sheet;
- and the first optical sheet or the second optical sheet has a surface with a plurality of first recesses depressed inwardly at a same distance.
3 more elements
Dependencies are inferred from the claim text.