IP Library Granted Patent US 8,184,446
Granted Patent B2
US 8,184,446 · App. 11/806,361 · Granted May 22, 2012

Inverter for liquid crystal display device and liquid crystal display module using the same

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Quick Facts
Patent No.
US 8,184,446
App. No.
11/806,361
Granted
May 22, 2012
Kind
B2
Abstract

An inverter for a liquid crystal display device and a liquid crystal display module using the inverter are provided. The inverter includes a circuit board defining a hole through itself, and a transformer inversely inserted into the hole of the circuit. The transformer generates a high voltage.

Claims (30)

1. An inverter for a liquid crystal display (LCD) device, comprising:

a circuit board defining a hole therethrough; and

a transformer inversely and directly inserted into the hole of the circuit, the transformer generating a high voltage,

an insulation material filled to obtain a creeping distance of high-tension pattern in the hole of the circuit board having the transformer inserted thereinto,

wherein the transformer comprised of a core to guide a magnetic flux, a bobbin having first and second coils wound thereon, first and second lead pins and respectively connected with the first and second coils and respectively positioned at both sides of bobbin, and high-tension and low-tension patterns respectively connected with the first and second lead pins,

wherein the thickness inverter is substantially identical to the thickness of transformer,

wherein first and second lead pins of the transformer are directly soldered in the front surface of the circuit board,

wherein the core of transformer is positioned toward the bottom cover of liquid crystal display device, and the first and second lead pins are soldered into the front surface of the circuit board,

wherein the core and the bobbin inversely and directly inserted into the hole of the circuit, and the high-tension and low-tension patterns are soldered into the front surface of the circuit board.

2. The inverter of claim 1 , wherein the circuit board is a printed circuit board (PCB).

3. The inverter of claim 1 , wherein the hole of the circuit board is open with respect to front and rear directions.

4. A liquid crystal display (LCD) module, comprising:

an LCD panel;

a backlight assembly including a light source to supply light to a rear surface of the LCD panel;

a main support on which the LCD panel and the backlight assembly are supported; and

an inverter including a circuit board defining a hole therethrough and a transformer inversely and directly inserted into the hole of the circuit board, wherein the inverter supplies power to the light source of the backlight assembly; and

a cover shield to cover the inverter,

an insulation material filled to obtain a creeping distance of high-tension pattern in the hole of the circuit board having the transformer inserted thereinto,

wherein the transformer comprised of a core to guide a magnetic flux, a bobbin having first and second coils wound thereon, first and second lead pins and respectively connected with the first and second coils and respectively positioned at both sides of bobbin, and high-tension and low-tension patterns respectively connected with the first and second lead pins,

wherein the thickness inverter is substantially identical to the thickness of transformer,

wherein first and second lead pins of the transformer are directly soldered in the front surface of the circuit board,

wherein the core of transformer is positioned toward the bottom cover of liquid crystal display device, and the first and second lead pins are soldered into the front surface of the circuit board,

wherein the core and the bobbin inversely and directly inserted into the hole of the circuit, and the high-tension and low-tension patterns are soldered into the front surface of the circuit board.

5. The LCD module of claim 4 , further comprising:

a top case to cover the lateral sides of the main support and edges of LCD panel; and

a bottom cover positioned adjacent to a rear surface of the main support.

6. The LCD module of claim 5 , wherein a core of the transformer is positioned toward the bottom cover.

7. The LCD module of claim 4 , wherein first and second lead pins of the transformer are assembled in a front surface of the PCB.

8. The LCD module of claim 4 , wherein the circuit board is a printed circuit board (PCB).

9. The LCD module of claim 4 , wherein the hole of the circuit board is open with respect to front and rear directions.

Assignments (2)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2007
From: JANG, HOON
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 019424/0191 →