BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME

• US 20120081925A1
• Filed: 07/27/2011
• Published: 04/05/2012
• Est. Priority Date: 10/01/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: CHO, Joo Woan, Choi, Seongsik, Lee, YongWoo
• Granted Patent: US 8,602,627 B2
• Time in Patent Office: Days
• US Class Current: 362/613
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G02F 1/133628 with cooling means
• CPC Class Codes: G02F 2201/46 Fixing elements
• CPC Class Codes: G02F 2201/465 Snap -fit

Abstract

A display apparatus includes a light source unit, a supporter, a light guide plate, and a display panel. The light source unit includes a substrate and a plurality of light sources disposed on a front surface of the substrate to emit a light. The supporter supports the light source unit. The light guide plate includes a light incident surface facing the front surface of the substrate, to which the light is incident, and a light exiting surface from which the light exits. The display panel receives the light from the light guide plate to display an image.

Claims

1. A display apparatus comprising:

a light source unit comprising a substrate and a plurality of light sources arranged on a front surface of the substrate to emit a light;

a supporter supporting the light source unit;

a light guide plate comprising a light incident surface to which the light is incident and a light exiting surface from which the light exits, the light incident surface of the light guide plate facing the front surface of the substrate; and

a display panel receiving the light from the light guide plate to display an image, the supporter comprising;

a body part making contact with a rear surface of the light source unit;

a bottom part extending from a lower portion of the body part to a direction substantially parallel to the light exiting surface;

a protruding part disposed on the bottom part and comprising a surface making contact with the substrate; and

a cover part coupled to the body part to cover an upper portion of the substrate and press the substrate to a direction at which the bottom part is disposed.

2. The display apparatus of claim 1, wherein the surface of the protruding part is inclined to the front surface of the substrate.

3. The display apparatus of claim 2, wherein the protruding part is extended in a longitudinal direction of the substrate.

4. The display apparatus of claim 2, wherein the protruding part is provided in a plural number and the protruding parts are arranged in a longitudinal direction of the substrate.

5. The display apparatus of claim 1, wherein the cover part comprises:

a first portion making contact with an upper portion of the body part;

a second portion extending from the first portion and comprising a surface making contact with the substrate; and

a coupling member coupling the first portion to the body part.

6. The display apparatus of claim 5, wherein the cover part further comprises an extending portion that covers a portion of the light exiting surface to press the light guide plate to the direction at which the bottom part is disposed.

7. The display apparatus of claim 5, wherein the cover part comprises a through hole, the body part comprises a coupling recess, and the coupling member is a screw that is coupled to the coupling recess after passing through the through hole.

8. The display apparatus of claim 5, wherein the cover part comprises a through hole, the body part comprises a coupling recess, and the coupling member is a hook that is coupled to the coupling recess after passing through the through hole.

9. The display apparatus of claim 5, wherein the cover part is a clip that makes contact with a front surface of the light source unit and a rear surface of the body part to press the light source unit to the body part and to press the body part to the light source unit.

10. The display apparatus of claim 9, wherein the cover part comprises:

a first protrusion protruded from the first portion to a downward direction to make contact with a front surface of the light source unit; and

a second protrusion protruded from the first portion to the downward direction to make contact with a rear surface of the body part, the second protrusion facing the first protrusion, the first protrusion presses the light source unit to the second protrusion, and the second protrusion presses the body part to the first protrusion.

11. The display apparatus of claim 5, further comprising a mold frame is provided at at least one side of the supporter to support an end of the display panel.

12. The display apparatus of claim 11, wherein the first portion and the second portion are integrally formed with the mold frame.

13. The display apparatus of claim 12, wherein the mold frame comprises a through hole, the body part comprises a coupling recess, and the coupling member is a screw that is coupled to the coupling recess after passing through the through hole.

14. The display apparatus of claim 1, wherein the supporter is provided in a plural number.

15. The display apparatus of claim 1, further comprising a bottom chassis to accommodate the light source unit, the supporter, and the light guide plate therein

16. The display apparatus of claim 15, wherein the body part, the bottom part, and the protruding part are integrally formed with the bottom chassis.

17. The display apparatus of claim 15, wherein the bottom part is partially overlapped with the bottom chassis when viewed in a plan view.

18. The display apparatus of claim 17, wherein the bottom part is screw-coupled to the bottom chassis in the overlapped are in which the bottom part is overlapped with the bottom chassis.

19. The display apparatus of claim 15, wherein the supporter and the bottom chassis comprises a metal material.

20. A backlight assembly comprising:

a light source unit comprising a substrate and a plurality of light sources arranged on a front surface of the substrate to emit a light;

a supporter supporting the light source unit; and

a light guide plate comprising a light incident surface to which the light is incident and a light exiting surface from which the light exits, the light incident surface of the light guide plate faces the front surface of the substrate, the supporter comprising;

a body part making contact with a rear surface of the light source unit;

a bottom part extending from a lower portion of the body part to a direction substantially parallel to the light exiting surface;

a protruding part disposed on the bottom part and comprising a surface making contact with the substrate; and

a cover part coupled to the body part to cover an upper portion of the substrate and press the substrate to a direction at which the bottom part is disposed.