Patent ID: 11903228
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 13:
14. A display device comprising a photoluminescent element comprising a substrate and a light emitting layer disposed on the substrate,
wherein the light emitting layer comprises a first section and a second section, the first section being configured to emit first light and the second section being configured to emit second light different from the first light,
wherein the first section comprises a first quantum dot polymer composite,
wherein the quantum dot polymer composite comprises a polymer matrix; and a core shell quantum dot dispersed in the polymer matrix, and
where the core shell quantum dot comprises: a semiconductor nanocrystal core comprising indium and phosphorus, and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the semiconductor nanocrystal shell comprising zinc, selenium, and sulfur,
wherein the core shell quantum dot has a mole ratio of sulfur to selenium of greater than or equal to about 0.05:1 to less than or equal to about 3.5:1, and a mole ratio of zinc to indium of greater than or equal to about 10:1 and less than or equal to about 24:1,
wherein the core shell quantum dot does not comprise cadmium.