| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a backlight device which enables improving a color mixing state by changing the spacial light quantity distribution of light emitted from light emitting diodes, or obtaining a luminance profile following image information. <P>SOLUTION: This backlight device 20 for illuminating a display part from the back side has a structure in which a plurality of light emitting diodes 21R, 21G, 21B are used as light sources, and a light quantity distribution adjusting means (pedestal 23 and rotation shaft 24) to change the spacial light quantity distribution of light emitted from the light emitting diodes 21R, 21G, 21B by mechanically driving each light emitting diode 21R, 21G, 21B is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT |
