| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a planar light source device having such a constitution/structure that partial color irregularity (color slurring) is hardly generated in the outer edge part of a planar light source unit which is driven individually. <P>SOLUTION: The planar light source device for illuminating a transmissive liquid crystal display device from the back is composed of P x Q pieces of planar light source units in each of which a light source is controlled individually. The light source is composed of a plurality of light emitting element units. Each of light emitting element units is composed of at least one red light emitting element for emitting red light, at least one green light emitting element for emitting green light and at least one blue light emitting element for emitting blue light. The centroid of luminance profiles based on a plurality of red light emitting elements in each of planar light source units, that of luminance profiles based on a plurality of green light emitting elements, and that of luminance profiles based on a plurality of blue light emitting elements almost match respectively that of the corresponding planar light source unit. <P>COPYRIGHT: (C)2008,JPO&INPIT |
