| US 7,568,826 B2 | ||
| Backlight and liquid crystal display device | ||
| Tetsuya Hamada, Kawasaki (Japan); and Toshihiro Suzuki, Kawasaki (Japan) | ||
| Assigned to Sharp Kabushiki Kaisha, Osaka (Japan) | ||
| Filed on Oct. 15, 2007, as Appl. No. 11/974,577. | ||
| Application 11/974577 is a continuation of application No. 10/830780, filed on Apr. 23, 2004. | ||
| Claims priority of application No. 2003-435415 (JP), filed on Dec. 26, 2003. | ||
| Prior Publication US 2008/0049448 A1, Feb. 28, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F21V 8/00 (2006.01) | ||
| U.S. Cl. 362—612 [362/613; 362/231; 362/249.06] | 3 Claims |
| 1. A backlight device, comprising:
a light guide plate having an upper surface configured to face a liquid crystal panel, a lower surface, and at least one side
surface extending in a thickness direction between the upper surface and the lower surface; and
a plurality of LEDs for irradiating light beams to the side surface of the light guide plate, which side surface serves as
a light incidence surface,
the plurality of LEDs being arranged in a plurality of rows in the thickness direction of the same side surface of the light
guide plate so as to extend in a longitudinal direction of the light incidence surface,
in the plurality of LEDs, two LEDs electrically connected to each other in series being disposed in different rows.
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