▎ 摘　　要

NOVELTY - Barrier film comprises a first layer (10) including a base film (1) and a barrier layer (2) positioned on the base film, and a second layer (20) located on the barrier layer. The second layer includes a base film and/or a diffusion layer (3). The barrier layer is a dry coating layer or a wet coating layer. USE - The barrier film is useful for a quantum dot sheet (claimed). ADVANTAGE - The barrier film has excellent flexibility, transparency, moisture-gas barrier property and excellent adhesion to the quantum dot-containing layer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for quantum dot sheet, comprising two barrier films and a quantum dot-containing light emitting layer positioned between the two barrier films, where the quantum dot-containing light emitting layer is in contact with each of the two barrier films. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the barrier film. Base film (1) Barrier layer (2) Diffusion layer (3) First layer (10) Second layer (20)