Quantum dot protective film, quantum dot film and backlight unit using the same

摘要

The first quantum dot protection film comprises a first barrier film including a silica deposition layer and a first diffusion layer. The O / Si ratio of the silica vapor-deposited layer is 1.7 to 2.0 in terms of atomic ratio, the refractive index of the silica vapor-deposited layer is 1.5 to 1.7, the wavelength of 450 nm, the wavelength of 540 nm and the wavelength of 620 nm The reflectance of the first quantum dot protective film at all wavelengths is 10% or more and 20% or less, and the transmittance is 80% or more and 95% or less.