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US 8,508,693 B2Granted
Backlight unit and liquid crystal display device having the same
AssigneeLG Display Co., Ltd.
InventorsYoung Ki Song, Jun Hyung Kim
Life of this patent
Estimating the term…
Abstract
Disclosed is a backlight unit provided with an improved external appearance and uniform brightness is disclosed. The backlight unit includes a light source, and a light guide plate configured to primarily and secondarily reflect light from the light source and to convert the reflected light into two dimensional light. One side portion of the light guide plate is formed to provide an undercut space enough to accommodate the light source.
Claims14
A backlight unit comprising:
- a light source;
- and
- a light guide plate configured to primarily and secondarily reflect light from the light source and to convert the reflected light into two dimensional light,
- wherein one side portion of the light guide plate is formed to provide an undercut space enough to accommodate the light source,
- wherein the light guide plate includes first and second rounded reflection surfaces formed on an upper surface of the side portion and configured to primarily reflect light emitted from the light source,
- wherein the light guide plate further includes an inclined surface formed on a side surface of the side portion and configured to reflect the primarily reflected light from the first rounded reflection surface toward the other opposite side of the light guide plate, and
- wherein inclined surface is formed on a side surface of light guide plate.
4 more elements
A backlight unit comprising:
- a light source;
- and
- a light guide plate configured to primarily and secondarily reflect light from the light source and to convert the reflected light into two dimensional light,
- wherein one side portion of the light guide plate is formed to provide an undercut space enough to accommodate the light source,
- wherein the light guide plate includes first and second inclined surfaces formed on an upper surface of the side portion and configured to primarily reflect light emitted from the light source,
- wherein the light guide plate further includes third and fourth inclined surfaces formed on a side surface of the side portion and configured to secondarily reflect the primarily reflected light from the first inclined surface toward the other opposite side of the light guide plate,
- wherein third and fourth inclined surface is formed on a side surface of light guide plate.
4 more elements
A liquid crystal display device comprising:
- a liquid crystal display panel;
- a light source disposed by one under side of the liquid crystal display panel;
- and
- a light guide plate configured to primarily and secondarily reflect light from the light source and to convert the reflected light into two dimensional light,
- wherein one side portion of the light guide plate is formed to provide an undercut space enough to accommodate the light source,
- wherein the light guide plate includes first and second rounded reflection surfaces formed on an upper surface of the side portion and configured to primarily reflect light emitted from the light source,
- wherein the light guide plate further includes an inclined surface formed on a side surface of the side portion and configured to reflect the primarily reflected light from the first rounded reflection surface toward the other opposite side of the light guide plate, and
- wherein the inclined surface is formed on a side surface of light guide plate.
5 more elements
A liquid crystal display device comprising:
- a liquid crystal display panel;
- a light source disposed by one under side of the liquid crystal display panel;
- and
- a light guide plate configured to primarily and secondarily reflect light from the light source and to convert the reflected light into two dimensional light,
- wherein one side portion of the light guide plate is formed to provide an undercut space enough to accommodate the light source,
- wherein the light guide plate includes first and second inclined surfaces formed on an upper surface of the side portion and configured to primarily reflect light emitted from the light source,
- wherein the light guide plate further includes third and fourth inclined surfaces formed on a side surface of the side portion and configured to secondarily reflect the primarily reflected light from the first inclined surface toward the other opposite side of the light guide plate,
- wherein third and fourth inclined surface is formed on a side surface of light guide plate.
5 more elements
Dependencies are inferred from the claim text.