IP Library Granted Patent US 7,815,330
Granted Patent B2
US 7,815,330 · App. 12/013,150 · Granted Oct 19, 2010

Backlight assembly and display device having the same

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Quick Facts
Patent No.
US 7,815,330
App. No.
12/013,150
Granted
Oct 19, 2010
Kind
B2
Abstract

A backlight assembly, which can provide enhanced light emitting efficiency, and a display device, are provided. The backlight assembly includes a light generating unit comprising a substrate and a point light source connected to the substrate, and a receiving container positioned to receive light from the light generating unit, the receiving container comprising an embossing that corresponds to the point light source.

Claims (35)

1. A backlight assembly comprising:

a light generating unit comprising a substrate and a point light source connected to one side of the substrate facing a receiving container; and

the receiving container positioned to receive the light generating unit, the receiving container comprising an embossing that corresponds to the point light source.

2. The backlight assembly of claim 1 , wherein the light-generating unit further comprises a power supply line configured to supply a power source for driving the point light source and the point light source connected to the substrate is toward the receiving container.

3. The backlight assembly of claim 2 , wherein the receiving container comprises a bottom plate and a sidewall protruding from an edge portion of the bottom plate to define a receiving space.

4. The backlight assembly of claim 3 , wherein the substrate is a printed circuit board (PCB).

5. The backlight assembly of claim 4 , wherein the point light source is a light emitting diode (LED).

6. The backlight assembly of claim 5 , wherein a section of the embossing has a spherical shape.

7. The backlight assembly of claim 5 , wherein the light emitting diode and the embossing are arranged in a matrix type pattern.

8. The backlight assembly of claim 5 , wherein the light emitting diode and the embossing are arranged in a zigzag type pattern.

9. The backlight assembly of claim 5 , wherein the embossing is filled with filler.

10. The backlight assembly of claim 9 , wherein the filler comprises at least one material of silicon, epoxy and acryl.

11. A display device comprising:

a display unit configured to display an image by using light, the display unit comprising:

a first substrate comprising pixel electrodes; and

a second substrate located opposite the first substrate, the second substrate comprising a color filter corresponding to the pixel electrodes to display images; and

a backlight assembly located opposite the display unit, the backlight assembly comprising:

a light-generating unit comprising a substrate and a point light source connected to one side of the substrate facing a receiving container; and

the receiving container positioned to receive the light-generating unit, the receiving container comprising an embossing that corresponds to the point light source.

12. The backlight assembly of claim 11 , wherein the light-generating unit further comprises a power supply line configured to supply a power source for driving the point light source.

13. The backlight assembly of claim 12 , wherein the receiving container comprises a bottom plate and a sidewall protruding from an edge portion of the bottom plate to define a receiving space.

14. The backlight assembly of claim 13 , wherein the substrate is a printed circuit board (PCB).

15. The backlight assembly of claim 14 , wherein the point light source is a light emitting diode (LED).

16. The backlight assembly of claim 15 , wherein the section of embossing has a spherical shape.

17. The backlight assembly of claim 15 , wherein the light emitting diode and the embossing are arranged by matrix type.

18. The backlight assembly of claim 15 , wherein the light emitting diode and the embossing are arranged by zigzag type.

19. The backlight assembly of claim 15 , wherein the embossing is filled with filler.

20. The backlight assembly of claim 19 , wherein the filler comprises at least one material of silicon, epoxy and acryl.

21. A method of making a backlight assembly, the method comprising:

providing a light generating unit comprising a substrate and a point light source connected to one side of the substrate facing a receiving container; and

positioning the receiving container comprising an embossing corresponding to the point light source such that the receiving container is in a position to receive the light generating unit.

22. The method as recited in claim 21 , wherein the embossing corresponds to the point light source.

23. The method as recited in claim 22 , wherein the light-generating unit further comprises a power supply line configured to supply a power source for driving the point light source and the point light source connected to the substrate is toward the receiving container.

24. The method as recited in claim 23 , wherein the receiving container comprises a bottom plate and a sidewall protruding from an edge portion of the bottom plate to define a receiving space.

25. The method as recited in claim 24 , wherein the substrate is a printed circuit board(PCB) and the point light source is a light emitting diode (LED).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029093/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2008
From: KIM, JEOM-OH; KIM, GI-CHERL; PARK, SE-KI; KANG, EUI-JEONG; KANG, SEOK-WON; KWON, YONG-HOON
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 020356/0579 →