| 摘要 |
The present invention relates to an optical extraction film for an organic light emitting device, capable of improving optical extraction efficiency, especially, easily manufacturing the optical extraction film by eliminating the complicated processes such as a vacuum deposition and a micro pattering, and maximizing the scattering effect while satisfying a required transmittance. According the present invention, the optical extraction film for an organic light emitting device includes, a plurality of liquid crystal capsules comprising a core material including an anisotropic liquid crystal having a first refractive index and a refractive index less than 0.2 and a shell material forming an external wall of the core material; a light diffusion layer located in the inside of the plurality of liquid crystal capsules and formed of a polymer matrix having a second refractive index greater than the first refractive index; and a buffer layer formed on the light diffusion layer and has a third refractive index greater than the first refractive index. |
