| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical sheet, a back light unit using the optical sheet, and a display capable of changing light distribution of emission light, wherein the diffusing sheet is made unnecessary without changing a lens shape by adding particles in the lens sheet. <P>SOLUTION: By adding filler in the lens sheet, the desired brightness or light distribution range, and uniformity can be attained without using the diffusing sheet, furthermore thinning and miniaturization accompanying the reduction of the number of members can be attained. By integrating the lens sheet and diffusing plate via the fixing element, the assembling process is simplified, and the desired brightness, light distribution range, uniformity etc., can be attained while being thin type and holding sufficient strength. Furthermore, by adding particles to the lens part the moire is made to hardly generate, and the optical sheet, backlight unit, and the display due to the diffusibility of the particles, the uniformity of the brightness cab be obtained. <P>COPYRIGHT: (C)2009,JPO&INPIT |
