A color conversion sheet converts incident light into light with a wavelength longer than that of the incident light. The color conversion sheet includes the following layer (A) and layer (B):
the layer (A): a layer containing an organic light-emitting material (a) that exhibits light emission with a peak wavelength observed in a region of 500 nm or more and 580 nm or less by using excitation light in a wavelength range of 400 nm or more and 500 nm or less and a binder resin; and
the layer (B): a layer containing an organic light-emitting material (b) that exhibits light emission with a peak wavelength observed in a region of 580 nm or more and 750 nm or less by being excited by either or both of excitation light in a wavelength range of 400 nm or more and 500 nm or less and light emission from the organic light-emitting material (a) and a binder resin.
                            色彩转换片可将入射光转换成波长长于入射光的光。颜色转换片包括以下层(A)和层(B):
层(A):包含有机
发光材料(a)和粘合剂
树脂的层,有机
发光材料(a)通过使用波长范围为 400 nm 或以上和 500 nm 或以下的激发光和粘合剂
树脂,可发出峰值波长在 500 nm 或以上和 580 nm 或以下区域的光;以及
层(B):包含有机
发光材料(b)的层,有机
发光材料(b)通过波长范围为 400 纳米或以上和 500 纳米或以下的激发光以及有机
发光材料(a)和粘合剂
树脂发出的光中的一种或两种激发光的激发,发出峰值波长在 580 纳米或以上和 750 纳米或以下区域的光。