Liquid crystal display device
View Patent ↗A liquid crystal display device includes a liquid crystal display panel, a lamp disposed behind the liquid crystal display panel, a cover accommodating the lamp, and an inverter disposed behind the cover. The inverter includes a substrate and a transformer mounted on the substrate and driving the lamp. The transformer includes a core and a coil that is wound around at least a part of the core. The liquid crystal display panel further includes a transformer cover which covers the coil, an inverter cover which covers the inverter and the transformer cover, and a metal member in the transformer cover.
1. An inverter assembly which drives a lamp, the inverter assembly comprising:
a substrate;
a transformer mounted on the substrate, the transformer comprising a core and a coil, the coil wound around at least a part of the core;
a transformer cover which covers the coil;
an inverter cover which covers an inverter and the transformer cover, and
a metal member which is disposed in the transformer cover,
wherein the transformer is disposed behind the lamp and the inverter cover disposed behind the transformer,
wherein at least a part of the metal member is disposed between the coil and the inverter cover to block a magnetic field of the coil in a direction opposite to the substrate.
2. The inverter assembly according to claim 1 , wherein the metal member comprises a metal plate.
3. The inverter assembly according to claim 2 , wherein the metal plate comprises nickel.
4. The inverter assembly according to claim 3 , wherein the metal member is arranged in parallel with the substrate.
5. The inverter assembly according to claim 4 , wherein the inverter cover comprises plastic.
6. A backlight unit comprising:
a lamp;
a cover accommodating the lamp;
an inverter disposed behind the cover, the inverter including a substrate and a transformer mounted on the substrate and driving the lamp, the transformer comprising a core and a coil, the coil wound around at least a part of the core;
a transformer cover which covers the coil;
an inverter cover which covers the inverter and the transformer cover; and
a metal member which is disposed in the transformer cover,
wherein the transformer is disposed behind the lamp and the inverter cover disposed behind the transformer,
wherein at least a part of the metal member is disposed between the coil and the inverter cover to block a magnetic field of the coil in a direction opposite to the substrate.
7. The backlight unit according to claim 6 , wherein the metal member comprises a metal plate.
8. The backlight unit according to claim 7 , wherein the metal plate comprises nickel.
9. The backlight unit according to claim 8 , wherein the metal member is arranged in parallel with the substrate.
10. The backlight unit according to claim 9 , wherein the inverter cover comprises plastic.
11. A liquid crystal display device comprising:
a liquid crystal display panel;
a lamp disposed behind the liquid crystal display panel;
a cover accommodating the lamp;
an inverter disposed behind the cover, the inverter including a substrate and a transformer mounted on the substrate and driving the lamp, the transformer comprising a core and a coil, the coil wound around at least a part of the core;
a transformer cover which covers the coil;
an inverter cover which covers the inverter and the transformer cover; and
a metal member which is disposed in the transformer cover,
wherein the transformer is disposed behind the lamp and the inverter cover disposed behind the transformer,
wherein at least a part of the metal member is disposed between the coil and the inverter cover to block a magnetic field of the coil in a direction opposite to the substrate.
12. The liquid crystal display device according to claim 11 , wherein the metal member comprises a metal plate.
13. The liquid crystal display device according to claim 12 , wherein the metal plate comprises nickel.
14. The liquid crystal display device according to claim 11 , wherein the transformer cover comprises:
a first cover portion which is provided between the coil and the inverter cover, the first cover portion disposed in a first direction;
a pair of second cover portions extending in a second direction that is substantially perpendicular to the first direction, the second cover portions extending from respective edge portions of the first cover portion and toward the substrate; and
a pair of third cover portions which extends outwardly from an end part of the pair of the second cover portions, the pair of third cover portions disposed in parallel with the first cover portion and the substrate.
15. The liquid crystal display device according to claim 14 , wherein the core is provided as a pair and respectively comprises:
a first core portion which is wound with the coil and disposed between the pair of second cover portions;
a pair of second core portions which is disposed on the third cover portions outside of the second cover portions, the first core portion disposed therebetween; and
a third core portion which connects the first core portion and the second core portion.
16. The liquid crystal display device according to claim 15 , wherein the transformer further comprises a bobbin which surrounds the first core portion and is wound with the coil.
17. The liquid crystal display device according to claim 16 , wherein the bobbin comprises plastic.