Low Cadmium Content Nanostructure Compositions and Uses Thereof
AssigneeNanosys, Inc.
InventorsChunming WANG, Charlie HOTZ, Jason HARTLOVE, Ernest LEE
Life of this patent
Estimating the term…
Abstract
Low concentration cadmium-containing quantum dot compositions are disclosed which, when contained in a film within a display, exhibit high color gamut, high energy efficiency, and a narrow full width at half maximum at individual wavelength emissions.
Claims30
An optical film useful in a display device comprising at least one first population of cadmium-containing core-shell nanostructures and at least one second population of core-shell nanostructures that are not cadmium-containing core-shell nanostructures in a common matrix material.
An optical film for use in a display device having less than 100 ppm of cadmium and comprising at least one population of cadmium-containing core-shell quantum dots in a matrix material having a FWHM less than about 40 nm, and the device comprising the optical film capable of achieving a Rec.2020 coverage of at least 85%.
An optical film useful in a display device comprising cadmium-containing core-shell nanostructures with a FWHM of 20-30 nm and a phosphor material not containing cadmium, wherein the core-shell nanostructures and phosphor material are in a common matrix material, and wherein the film contains 10 to 99 ppm of cadmium.
An optical film useful in a display device comprising green-emitting cadmium-containing core-shell nanostructures with a FWHM of 23-30 nm and containing 10 to 99 ppm of cadmium.
Dependencies are inferred from the claim text.