| US 7,478,920 B2 | ||
| Backlight and liquid crystal display device | ||
| Kohhei Nanbu, Suzuka (Japan) | ||
| Assigned to Sharp Kabushiki Kaisha, Osaka (Japan) | ||
| Filed on Nov. 28, 2006, as Appl. No. 11/604,845. | ||
| Claims priority of application No. 2005-344076 (JP), filed on Nov. 29, 2005. | ||
| Prior Publication US 2007/0121318 A1, May 31, 2007 | ||
| Int. Cl. F21S 4/00 (2006.01) | ||
| U.S. Cl. 362—225 [362/221; 362/222; 362/223; 362/276] | 15 Claims |
| 1. A backlight, comprising:
a lamp and a light emitting diode;
a lamp clip to secure the lamp held thereon to a chassis;
a transparent part included in the lamp clip to pass light from a lamp side to a chassis side;
a first board superposed on the chassis and provided with the light emitting diode;
a second board disposed in an opposite side of the lamp relative to the chassis, provided with a circuit to drive the light
emitting diode, and electrically connected to the first board;
a through hole formed on each of the chassis and the first board to transmit light from the transparent part to the second
board;
a light receiver mounted on the second board to receive light passed through the through holes; and
a light shade disposed between the chassis and the second board and surrounding the through holes and the light receiver.
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