WAVELENGTH CONVERSION FILM, WAVELENGTH CONVERSION FILM FORMING COMPOSITION, AND CLUSTER-CONTAINING QUANTUM DOT PRODUCTION METHOD
申请人:TOKYO OHKA KOGYO CO., LTD.
公开号:EP3998324A1
公开(公告)日:2022-05-18
The objective of the invention is to provide a wavelength conversion film demonstrating a high optical density, a wavelength conversion film forming composition used suitably for forming the wavelength conversion film, and a production method for a cluster-containing quantum dot that may be applied suitably to the wavelength conversion film and the wavelength conversion film forming composition. In this invention, for a wavelength conversion film containing a quantum dot converting blue light into red light or green light, the light beam transmittance of the wavelength conversion film at 450 nm wavelength is set to 40% or lower, the light beam transmittance of the wavelength conversion film at 650 nm wavelength is set to 90% or higher if the hue of the light beam after the wavelength conversion is red, and the light beam transmittance of the wavelength conversion film at 550 nm wavelength is set to 90% or higher if the hue of the light beam after the wavelength conversion is green.
本发明的目的是提供一种具有高光密度的波长转换膜、一种适合用于形成该波长转换膜的波长转换膜形成组合物,以及一种可适合应用于该波长转换膜和波长转换膜形成组合物的含团簇量子点的生产方法。在本发明中,对于含有将蓝光转换成红光或绿光的量子点的波长转换薄膜,波长为 450 nm 的波长转换薄膜的光束透过率设定为 40% 或更低、如果波长转换后的光束色调为红色,则波长 650 nm 处的波长转换薄膜的光束透射率设定为 90% 或更高,如果波长转换后的光束色调为绿色,则波长 550 nm 处的波长转换薄膜的光束透射率设定为 90% 或更高。