Insulating shield cover for protecting inverter circuit board with transformer and LCD device using double-sided tape for attaching both upper and lower portions of the circuit board with transformer to the shield cover
View Patent ↗A shield cover for a liquid crystal device is made of an insulating film for protecting and insulating an inverter, including a printed circuit board at a lower surface of the inverter and a transformer at an upper surface of the inverter. The shield cover extends from a portion of the lower surface of the inverter to the entire upper surface of the inverter, the shield cover attached to the liquid crystal device to cover the printed circuit board at the lower surface of the inverter and the entire upper surface of the inverter including the transformer.
1. A shield cover for a liquid crystal device, comprising:
an inverter printed circuit board;
a transformer mounted at an upper surface of the inverter printed circuit board; and
an insulating film having a lower portion extending from and covering a portion of a lower surface of the inverter printed circuit board to an edge of the inverter printed circuit board, the insulating film having an upper portion extending from the insulating film lower portion to cover the entire upper surface of the inverter printed circuit board including the transformer for protecting the inverter printed circuit board and insulating the transformer, wherein the upper portion of the insulating film is attached to the upper surface of the inverter printed circuit board with a double sided tape and the lower portion of the insulating film is attached to the lower surface of the inverter printed circuit board with another double sided tape.
2. The shield cover of claim 1 , wherein the insulating film includes a polyethylene terephthalate (PET) material.
3. The shield cover of claim 1 , wherein the insulating film has a thickness of about 0.2mm-1mm.
4. The shield cover of claim 1 , wherein the insulating film includes a plurality of heat radiating units for radiating heat generated by the inverter printed circuit board.
5. The shield cover of claim 1 , wherein the insulating film is attached to a liquid crystal display device through at least one first coupling groove formed on the insulating film and at least one second coupling groove formed on the inverter printed circuit board.
6. The shield cover of claim 1 , wherein the insulating film includes bending slits and bending lines for protecting a protruding component on the inverter printed circuit board.
7. The shield cover of claim 6 , wherein the bending lines are formed at lateral surfaces of a protruding component, and the bending slits are formed along the bending lines to bend the insulating film.
8. A liquid crystal display device comprising:
a mold frame;
a liquid crystal display panel attached to the mold frame;
a backlight unit including a lamp for irradiating light on the liquid crystal display panel;
an inverter printed circuit board that applies a driving voltage to the lamp, the inverter printed circuit board being positioned at a lower portion of the liquid crystal display panel;
a transformer mounted at an upper surface of the inverter printed circuit board; and
an insulating film having a lower portion extending from and covering a portion of a lower surface of the inverter printed circuit board to an edge portion of the inverter printed circuit board, the insulating film having an upper portion extending from the insulating film lower portion to cover the entire upper surface of the inverter printed circuit board including the transformer for protecting the inverter printed circuit board and insulating the transformer, wherein the upper portion of the insulating film is attached to the upper surface of the inverter printed circuit board with a double sided tape and the lower portion of the insulating film is attached to the lower surface of the inverter printed circuit board with another double sided tape.
9. The liquid crystal display device of claim 8 , wherein the insulating film includes a polyethylene terephthalate material.
10. The liquid crystal display device of claim 8 , wherein the insulating film has a thickness of about 0.2mm-1mm.
11. The liquid crystal display device of claim 8 , including a lower cover for supporting the liquid crystal display panel, the mold frame, and the backlight unit by attaching one to the other.
12. The liquid crystal display device of claim 11 , wherein the insulating film and the inverter printed circuit board are attached to the lower cover through at least one first coupling groove formed on the insulating film and at least one second coupling groove formed on the inverter printed circuit board.
13. The liquid crystal display device of claim 8 , wherein the insulating film includes bending slits and bending lines for protecting a protruding component on the inverter printed circuit board.
14. The liquid crystal display device of claim 13 , wherein the bending lines are formed at lateral surfaces of the protruding component, and the bending slits are formed along the bending lines to bend the insulating film.
15. A shield cover for a liquid crystal device, comprising:
an inverter printed circuit board;
a transformer mounted at an upper surface of the inverter printed circuit board; and
an insulating film having a lower portion extending from and covering a portion of a lower surface of the inverter printed circuit board to an edge portion of the inverter printed circuit board, the insulating film having an upper portion extending from the insulating film lower portion to cover the entire upper surface of the inverter printed circuit board including the transformer for protecting the inverter printed circuit board and insulating the transformer to prevent an increase in a parasitic capacitance of the transformer, wherein the upper portion of the insulating film is attached to the upper and surface of the inverter printed circuit board with a double sided tape and the lower portion of the insulating film is attached to the lower surface of the inverter printed circuit board with another double sided tape.