| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical element, a light uniform element, an optical sheet, a backlight unit and a display device capable of canceling a lamp image by being irradiated with incident light from a plurality of light sources uniform, in a structure in which a distance between the light sources and the optical element or the light uniform element becomes short, or in a structure in which intervals of the light sources are widened. <P>SOLUTION: The light uniform element 25 has a light-propagating layer 23 and a light-deflecting element 28 provided at a light-incident face side of a light diffusion base material 26 which 26 has a light-diffusing agent mixed in transparent resin. The light-diffusing agent contains at least three kinds of particles of spherical-shape large-diameter particles with a mean particle size of 4 to 20μm, spherical-shape small-diameter particles with a mean particle size of 1 to 3μm, and indefinite particles. The light uniform element 25 is arranged at a light source side of the display device 70, and furthermore, if needed, an optical member 2 or the like is arranged on the light diffusion base material 26 of the light uniform element. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
