The present invention provides a light-diffusing resin composition capable of realizing high color rendering properties and brightness when used in light-diffusing sheets, and a light-diffusing sheet and a light source unit using same. Provided are the light-diffusing resin composition including a binder resin (A) preferably in 1 to 80 mass%, a light-diffusing agent (B) preferably in 15 to 95 mass%, and a trimethine cyanine compound (C) represented by formula (I) preferably in 0.0001 to 5 mass%; and the light-diffusing sheet using the light-diffusing resin composition in a light-diffusing layer. The light source unit has the light-diffusing sheet and a light source, preferably a white LED.
本发明提供了一种用于光扩散片时能够实现高显色性和高亮度的光扩散
树脂组合物,以及使用该组合物的光扩散片和光源装置。本发明提供的光扩散
树脂组合物包括粘合剂
树脂(A)(优选质量百分比为 1 至 80%)、光扩散剂(B)(优选质量百分比为 15 至 95%)和式(I)代表的三亚甲基
氰化合物(C)(优选质量百分比为 0.0001 至 5%);以及在光扩散层中使用该光扩散
树脂组合物的光扩散片材。光源单元包括光扩散片和光源,最好是白光 LED。