Quantum Dot Based Color Conversion Layer in Display Devices

A display device comprising:

• an organic layer that emits a broadband radiation;
• a quantum dot film disposed on the organic layer, comprising:
• barrier layer coated quantum dots that absorb a set of wavelengths of the broadband radiation and emit at a primary emission peak wavelength, the set of wavelengths being smaller than the primary emission peak wavelength,
• wherein each of the barrier layer coated quantum dots includes a core-shell quantum dot and an optically transparent barrier layer surrounding the core-shell quantum dot, and
• wherein the barrier layer coated quantum dots exhibit a quantum yield greater than about 80%, and
• a matrix material configured to house the barrier layer coated quantum dots and be in substantial contact with the optically transparent barrier layer;
• and
• an optical element, disposed on the quantum dot film, configured to block another set of wavelengths of the broadband radiation that are greater than the primary emission peak wavelength.

A light emitting diode (LED) device comprising:

• a light source unit;
• a quantum dot film disposed on the light source unit;
• and
• an optical element disposed on the quantum dot film.