Backlight Assembly, Display Apparatus Having the Same and Method for Manufacturing the Same

• US 20080297701A1
• Filed: 03/27/2008
• Published: 12/04/2008
• Est. Priority Date: 03/28/2007
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Kwang-Hee, Ryu, Han-Jin, Choi, Seong-Sik
• Application Number:
  US12/056,397
• Publication Number:
  US 20080297701A1
• Time in Patent Office: Days
• US Class Current: 349/68
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/133612 Electrical details
• CPC Class Codes: H01R 12/52 connecting to other rigid printed circuits or like structures
• CPC Class Codes: H01R 31/02 Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/92

Abstract

In a backlight assembly, a display apparatus and a method thereof, the backlight assembly includes a base substrate, a plurality of point light sources, a receiving container and a converter. The base substrate includes a first connector electrically connected to the base substrate at a lower surface of the base substrate. The receiving container includes a side wall and a bottom plate, and receives the base substrate. The bottom plate faces the lower surface of the base substrate and includes an opening into which the first connector is inserted. The converter is disposed on an opposite side of the bottom plate of the receiving container from the base substrate and includes a second connector electrically connected to the converter at an upper surface of the converter. The second connector is separably connected to the first connector.

Claims

1. A backlight assembly comprising:

a base substrate including a first connector electrically connected to the base substrate at a lower surface of the base substrate;

a plurality of point light sources disposed on the base substrate;

a receiving container including a side wall and a bottom plate, and receiving the base substrate, the bottom plate facing the lower surface of the base substrate and including an opening into which the first connector of the base substrate is inserted; and

a converter disposed on an opposite side of the bottom plate of the receiving container from the base substrate and including a second connector electrically connected to the converter at an upper surface of the converter, the second connector being separably connected to the first connector.

2. The backlight assembly of claim 1, wherein the first connector of the base substrate is directly and electrically connected to the second connector of the converter through the opening of the receiving container.

3. The backlight assembly of claim 2, wherein the opening is disposed at a side of the bottom plate and adjacent to the side wall of the receiving container.

4. The backlight assembly of claim 3, wherein a height of the first connector, of the second connector, or of the first and second connectors is between about 10 millimeters (mm) and about 12 millimeters (mm).

5. The backlight assembly of claim 1, wherein the point light sources comprise light emitting diodes (“

LEDs”

) emitting white light.

6. The backlight assembly of claim 1, wherein the point light sources comprise at least one of a green LED, a blue LED, and a red LED.

7. The backlight assembly of claim 5, wherein the green LED, blue LED, and red LED are integrated into one chip.

8. The backlight assembly of claim 1, further comprising a control part disposed on the opposite surface of the bottom plate of the receiving container, and electrically connected to the converter, the electrically connected control part controlling the converter.

9. A backlight assembly comprising:

a plurality of base substrates arranged substantially parallel to each other, each of the base substrates including a first connector electrically connected to the base substrate at a lower surface of the base substrate;

a plurality of point light sources disposed on each of the base substrates;

a receiving container including a side wall and a bottom plate, and receiving the base substrates, the bottom plate facing the lower surfaces of the base substrates, including a plurality of openings, each of the openings corresponding to a first connector; and

a converter disposed on an opposite side of the bottom plate of the receiving container from the base substrates and including a plurality of second connectors electrically connected to the converter at an upper surface of the converter, each of the second connectors corresponding to a first connectors and an opening.

10. The backlight assembly of claim 9, wherein each of the first connectors passes through the opening corresponding to the first connector, and is directly and electrically connected to the second connector.

11. The backlight assembly of claim 10, wherein the point light sources comprise light emitting diodes (“

LEDs”

) emitting white light.

12. A display apparatus comprising:

a backlight assembly including;

a base substrate including a first connector electrically connected to the base substrate at a lower surface of the base substrate;

a receiving container and including a side wall and a bottom plate, the bottom plate facing the lower surface of the base substrate and including an opening corresponding to the first connector; and

a converter disposed on an opposite side of the bottom plate of the receiving container from the base substrate, and including a second connector electrically connected to the converter at an upper surface of the converter, the second connector corresponding to the first connector and the opening; and

a display panel disposed facing an upper surface of the base substrate of the backlight assembly, the display panel displaying images using light passing through the backlight assembly.

13. The display apparatus of claim 12, wherein the first connector passes through the opening of the receiving container, and is directly and electrically connected to the second connector.

14. The display apparatus of claim 13, further comprising:

a plurality of point light sources disposed on the base substrate.

15. The display apparatus of claim 13, further comprising a plurality of base substrates, each of the base substrates including the first connector;

a plurality of converters, each of the converter including the second connector; and

a plurality of openings in the receiving container,

wherein each of the first connectors passes through an opening corresponding to the first connector, and is directly and electrically connected to the second connector corresponding to the opening.

16. A method for manufacturing a backlight assembly, the method comprising:

electrically connecting a first connector to a base substrate at a lower surface of the base substrate, the base substrate including a plurality of point light sources is disposed on an upper surface of the base substrate;

disposing a receiving container including a side wall, and a bottom plate including an opening, the bottom plate facing the lower surface of the base substrate, the opening corresponding to the first connector of the base substrate;

directly and electrically connecting a second connector to an upper surface of a converter; and

disposing the converter on an opposite side of the bottom plate of the receiving container from the base substrates, the second connector corresponding to the first connector of the base substrate and the opening of the receiving container.

17. The method of claim 16, further comprising directly and electrically connecting the first connector to the second connector while the first connector and the second connector are both disposed through the opening.

18. The method of claim 16, wherein the opening is formed through a press process.

19. The method of claim 16, further comprising:

electrically connecting a plurality of first connectors to a plurality of base substrates at lower surfaces of the plurality of base substrates, respectively, each of the base substrates including a plurality of point light sources disposed on an upper surface of the base substrate; and

directly and electrically connecting a plurality of second connectors to a plurality of converters at upper surfaces of the plurality of converters, respectively, each of the second connectors corresponding to a first connector of the base substrate and an opening of the receiving container.

20. The method of claim 19, wherein each pair of corresponding first and second connectors are separably connected.