| US 7,554,626 B2 | ||
| Liquid crystal display device with wedge-shaped light-guiding plate | ||
| Naruo Hashino, Tottori (Japan); and Hiroki Sakemoto, Tottori (Japan) | ||
| Assigned to Sanyo Electric Co., Ltd., Osaka (Japan); and Tottori Sanyo Electric Co., Ltd., Tottori (Japan) | ||
| Appl. No. 10/551,470 PCT Filed Mar. 29, 2004, PCT No. PCT/JP2004/004435 § 371(c)(1), (2), (4) Date Sep. 30, 2005, PCT Pub. No. WO2004/088404, PCT Pub. Date Oct. 14, 2004. |
||
| Claims priority of application No. 2003-094036 (JP), filed on Mar. 31, 2003; and application No. 2003-178980 (JP), filed on Jun. 24, 2003. | ||
| Prior Publication US 2006/0215072 A1, Sep. 28, 2006 | ||
| Int. Cl. G02F 1/1335 (2006.01) | ||
| U.S. Cl. 349—65 [349/58; 349/61; 362/632; 362/633; 362/634] | 7 Claims |
| 1. A liquid crystal display device having a liquid crystal panel and an illumination unit for illuminating the liquid crystal
display panel, wherein
the illumination unit includes a substantially wedge-shaped light-guiding plate having a backside being inclined so as to
be formed thinner from one side edge to the other side edge, a linear light source disposed along a thicker plate surface
at one side edge of the light-guiding plate, lead wires severally connected to both ends of the linear light source, and a
housing that houses the light-guiding plate and the linear light source,
and a groove is formed on the bottom wall of the housing such that a gap is created between the backside of the light-guiding
plate and the bottom wall at a certain area portion of the light-guiding plate wherein the plate is the least thick, with
a part of the lead wires residing in the gap and being arranged along the other side edge of the light-guiding plate, and
made to extend to the outside from the backside of the housing.
|