| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thin backlight device having wide color reproduction range. <P>SOLUTION: The backlight device is provided with a diffusion plate 141 diffusing colored incident light and emitting the light in plane shape, and light sources composed of a plurality of light emitting diode elements emitting the light incident on the diffusion plate 141. The light emitting diode element 21 is composed of a plurality of light emitting diode chips 31 all of which are arranged at nearly central part on a base plate 32, emitting light at least in red color, green color, and blue color respectively, and a light condensing means 33 formed on the base plate 32 so as to cover the plurality of light emitting diode chips 31, condensing respective red, green, and blue colored light emitted from the plurality of light emitting diode chips 31 on one point of the diffusion plate 141, and turning them into white colored light. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
