Method for manufacturing quantum dot film comprising encapsulated quantum dots uniformly dispersed therein, quantum dot film manufactured thereby and wavelength conversion sheet and display comprising same

A method of manufacturing a quantum-dot film, suitable for manufacturing a quantum-dot film in which encapsulated particles obtained by encapsulating quantum dots with an encapsulation resin are dispersed in a matrix resin, the method comprising sequential steps of:

• (a) preparing a curable emulsion composition comprising an inner phase, comprising an encapsulation resin in liquid state and quantum dots dispersed in the encapsulation resin, and an outer phase in liquid state, comprising a photocurable polymerization compound and a photoinitiator, the inner phase being dispersed in a droplet form in the outer phase;
• and then
• (b) independently performing encapsulation of the inner phase and curing of the outer phase using the curable emulsion composition,
• wherein the encapsulation resin is a thermally curable resin or a wax-based compound, and
• wherein the step (b) is performed in a manner in which the inner phase is first cured or solidified and then the outer phase is cured, or the outer phase is first cured and then the inner phase is cured or solidified.