发明名称 |
Backlight unit and liquid crystal display apparatus having the same |
摘要 |
A backlight unit (BLU) and a liquid crystal display apparatus having the BLU are provided. The BLU includes a plurality of light-emitting diodes (LEDs) configured to emit blue light, a fluorescent member configured to convert the blue light emitted from the plurality of LEDs into tricolor light and emit the tricolor light, and a filter disposed between the fluorescent member and the plurality of LEDs, and configured to selectively filter a first wavelength area of the tricolor light emitted from the fluorescent member toward the plurality of LEDs, and reflect a second wavelength area of the tricolor light emitted from the fluorescent member toward an output direction. |
申请公布号 |
US9366398(B2) |
申请公布日期 |
2016.06.14 |
申请号 |
US201414217880 |
申请日期 |
2014.03.18 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
Jang Na-won;Cho Kun-ho |
分类号 |
G02F1/1335;F21K99/00;F21V8/00 |
主分类号 |
G02F1/1335 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A backlight unit (BLU) comprising:
a plurality of light-emitting diodes (LEDs) configured to emit blue light; a light guide panel (LGP); a fluorescent member configured to convert the blue light emitted from the plurality of LEDs into tricolor light, and emit the tricolor light; and a filter disposed between the fluorescent member and the plurality of LEDs, and configured to selectively filter a first wavelength area of the tricolor light emitted from the fluorescent member toward the plurality of LEDs, and reflect a second wavelength area of the tricolor light emitted from the fluorescent member toward an output direction, wherein the fluorescent member is a quantum dot member and, wherein the plurality of LEDs are mounted on a printed circuit board (PCB) having high heat conductivity and arranged to operate as a heat sink, and wherein the filter has a surface that extends in a direction substantially parallel with a side surface of the LGP, the surface of the filter having a size greater than a size of the side surface of the LGP. |
地址 |
Suwon-si KR |