Backlight unit and liquid crystal display having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsGil Tae HUR, Kun Ho CHO, Yong Hun KWON, Kye Hoon LEE, Suk Ju CHOI
Life of this patent
Estimating the term…
Abstract
A liquid crystal display is provided. The liquid crystal display includes a liquid crystal panel, a light guide plate disposed below the liquid crystal panel, and a light source unit which emits light to at least one side surface of the light guide plate. The light source unit includes light source elements which are disposed adjacent to the at least one side surface of the light guide plate, and which emit light that is incident on the at least one side surface of the light guide plate. A printed circuit board is disposed adjacent to a lower surface of the light guide plate and supports the light source elements.
Claims26
A liquid crystal display comprising:
- a liquid crystal panel;
- a light source unit which emits light;
- and
- a light guide plate comprising at least one side surface which receives the light from the light source unit, and transmits light to the liquid crystal panel;
- wherein the light source unit comprises:
- a plurality of light source elements which emit light and which are disposed adjacent to the at least one side surface of the light guide plate;
- and
- a printed circuit board which supports the light source elements and is disposed adjacent to a lower surface of the light guide plate.
A backlight unit comprising:
- a light guide plate;
- a plurality of light source elements which emit light and which are arranged to face at least one side surface of the light guide plate;
- and
- a printed circuit board which supports the plurality of light source elements and which is arranged to face a lower surface of the light guide plate.
A liquid crystal display comprising:
- a liquid crystal panel;
- a plurality of optical sheets disposed below the liquid crystal panel;
- a light guide plate disposed below the optical sheets;
- a reflecting sheet disposed below the light guide plate;
- a light source unit which emits light to at least one side surface of the light guide plate;
- and
- a cover assembly which supports the liquid crystal panel, optical sheets, light guide plate, reflecting sheet and light source unit,
- wherein the light source unit comprises:
- a plurality of light source elements disposed between a sidewall of the cover assembly and the at least one side surface of the light guide plate, wherein the plurality of light source elements emit light to the at least one side surface of the light guide plate;
- and
- a printed circuit board which supports the plurality of light source elements and which is disposed between a bottom portion of the cover assembly and a lower surface of the light guide plate.
A liquid crystal display comprising:
- a liquid crystal panel,
- a light guide plate comprising a plurality of side surfaces, a lower surface, and an upper surface which is opposite the lower surface,
- a plurality of light source elements which emit light and are disposed such that they are adjacent to and substantially parallel to at least one side surface of the light guide plate;
- a printed circuit board on which the plurality of light source elements are mounted, wherein the printed circuit board is adjacent to and substantially parallel to the lower surface of the light guide plate;
- wherein light incident on the at least one side surface of the light guide plate is emitted through the upper surface of the light guide plate.
A backlight unit comprising:
- a light guide plate comprising a plurality of side surfaces, a lower surface, and an upper surface which is opposite the lower surface,
- a plurality of light source elements which emit light and are disposed such that they are adjacent to and substantially parallel to at least one side surface of the light guide plate;
- a printed circuit board on which the plurality of light source elements are mounted, wherein the printed circuit board is adjacent to and substantially parallel to the lower surface of the light guide plate;
- wherein light incident on the at least one side surface of the light guide plate is emitted through the upper surface of the light guide plate.
Dependencies are inferred from the claim text.