Back to results
US 8,619,213 B2Granted
Backlight unit and display module employing the backlight unit
AssigneeSamsung Display Co., Ltd.
InventorsHwan-Jin Kim, Min-Seop Kim, Hyo-Shin Song
Life of this patent
Estimating the term…
Abstract
A backlight unit and a display module employing the backlight unit, the backlight unit including a light guide panel for guiding light to a display apparatus for displaying an image; and a plurality of light source devices arranged in a side portion of the light guide panel, wherein the plurality of light source devices are electrically connected to each other by connecting units having conductivity. The display module may be further slimmed since the limitation due to the thickness of a light source device circuit board is eliminated.
Claims19
A backlight unit, comprising:
- a light guide panel having an upper surface, a lower surface and four side surfaces for guiding light to a display apparatus for displaying an image;
- a plurality of light source devices arranged
- at intervals on at least one side of the four side surfaces of the light guide panel, said plurality of light source devices being each contained in a housing, said housing having two terminal units with each terminal unit having a protrusion unit;
- and;
- a plurality of connecting units composed of an electrically conductive material arranged at intervals on said at least one side of the four side surfaces of the light guide panel between each of the plurality of light source devices, each of said plurality of connecting units having a coupling portion at opposite ends of a base portion, each of said coupling portions having a receiving hole for receiving the protrusion unit and formed in an external surface of each of the coupling portions.
2 more elements
A backlight unit, comprising:
- a light guide panel for guiding light to a display apparatus for displaying an image;
- and
- a plurality of light source devices arranged in a side portion of the light guide panel,
- wherein the plurality of light source devices are electrically connected to each other by connecting units having conductivity,
- wherein a plurality of concave-convex units are continuously disposed along the side portion of the light guide panel,
- wherein the plurality of light source devices are arranged in the concave units, respectively,
- wherein the connecting units are formed on the convex units, respectively, and
- wherein both end portions of each of the connecting units are respectively connected to the neighboring light source devices,
- wherein each of the plurality of light source devices includes a light source, a housing unit that contains the light source, and terminal units that are electrically connected to the light source, and
- wherein the connecting units are conductive coating layers that are formed on external surfaces of the convex units.
7 more elements
A backlight unit, comprising:
- a light guide panel for guiding light to a display apparatus for displaying an image;
- a plurality of light source devices arranged in a side portion of the light guide panel, the plurality of light source devices are electrically connected to each other by connecting units having conductivity, said plurality of light source devices being each contained in a housing, said housing having two terminal units with each terminal unit having a protrusion unit;
- a plurality of supporting units are formed in the side portion of the light guide panel, wherein the plurality of light source devices are formed in intervals between the supporting units, the connecting units are arranged on the supporting units, respectively, and both end portions of each of the connecting units are respectively connected to the plurality of neighboring light source devices;
- and
- a plurality of connecting units composed of an electrically conductive material arranged at intervals on said at least one side of the four side surfaces of the light guide panel between each of the plurality of light source devices, each of said plurality of connecting units having a coupling portion at opposite ends of a base portion, each of said coupling portions having a receiving hole for receiving the protrusion unit and formed in an external surface of each of the coupling portions.
2 more elements
A backlight unit, comprising:
- a light guide panel for guiding light to a display apparatus for displaying an image;
- a plurality of light source devices arranged in a side portion of the light guide panel,
- wherein the plurality of light source devices are electrically connected to each other by connecting units having conductivity;
- and
- wherein a plurality of supporting units are formed in the side portion of the light guide panel,
- wherein the plurality of light source devices are formed in intervals between the supporting units,
- wherein the connecting units are arranged on the supporting units, respectively,
- wherein both end portions of each of the connecting units are respectively connected to the plurality of neighboring light source devices,
- wherein each of the plurality of light source devices include a light source, a housing that contains the light source, and terminal units that are electrically connected to the light source and that are arranged on external surfaces of both side portions of the housing unit, the terminal units are connected to each of the connecting units,
- wherein the connecting units are conductive coating layers that are formed on external surfaces of the supporting units.
7 more elements
A display module, comprising:
- a display apparatus for displaying an image;
- and
- a backlight unit, comprising:
- a light guide panel having an upper surface, a lower surface and four side surfaces, said upper surface facing said display apparatus;
- a plurality of light source devices arranged at intervals on at least one side of the four side surfaces of the light guide panel, said plurality of light source devices being each contained in a housing, said housing having two terminal units with each terminal unit having a protrusion unit;
- a plurality of supporting units composed of an electrically conductive material arranged at intervals on said at least one side of the four side surfaces of the light guide panel between each of the plurality of light source devices, each of said plurality of supporting units having a coupling portion at opposite ends of a base portion, each of said coupling portions having a coupling hole;
- a plurality of concave units formed in said at least one side of the four side surfaces of the light guide panel, the plurality of light source devices are arranged within the plurality of concave units;
- and
- a plurality of convex units formed in said at least one side of the four side surfaces of the light guide panel, each of the base portion of the plurality of connecting units are formed on the convex units,
- wherein each of the plurality of light source devices are electrically connected to each other by inserting the protrusion unit of each of the plurality of light source devices into the coupling hole of each of the plurality of supporting units, and
- wherein the base portion of the plurality of connecting units is formed on an external surface of each of the convex units and extends over opposite ends of each of the plurality of convex units and said coupling portions that extend from both end portions of the base portion toward side walls of each of the convex units have a “U” shape to elastically contact the terminal units of the plurality of light source devices.
8 more elements
Dependencies are inferred from the claim text.