| 摘要 |
PURPOSE: A backlight unit is provided to integrate a plurality of functions of optical sheet in two optical sheets. CONSTITUTION: A backlight unit includes a light source, a first optical sheet(131), and a second optical sheet(132). The first optical sheet includes a plurality of prism patterns on the front surface. The first optical sheet includes a first light diffusing layer on a rear surface. A plurality of diffusing beads(133) and a binder(125) is mixed to the first optical diffusing layer. The second optical sheet includes the second optical diffusing layer on the front surface. A plurality of diffusing bead, a bonding beads(145), and the binder are mixed to the second optical diffusing layer. |
