Quantum-dot-containing composition, light-emitting element, display device, and method for manufacturing quantum-dot-containing composition
AssigneeSharp Display Technology Corporation
InventorsKeisuke KITANO, Yoji MATSUDE, Yoshihiro UETA
Life of this patent
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Abstract
A quantum-dot-containing composition contains: either quantum dots each having a surface provided with only one equivalent crystal plane, or quantum dots each having a surface provided with two or more different equivalent crystal planes; and one selected from (A), (B), and (C) below: (A) two or more compounds; (B) one or more compounds, and single atoms formed of one or more halogens or chalcogens; and (C) single atoms formed of two or more halogens or chalcogens.
Claims21
A quantum-dot-containing composition, comprising:
- either quantum dots each having a surface provided with only one equivalent crystal plane, or quantum dots each having a surface provided with two or more different equivalent crystal planes;
- and
- one selected from (A), (B) and (C) below:
- (A) two or more compounds;
- (B) one or more compounds, and single atoms formed of one or more halogens or chalcogens;
- and (C) single atoms formed of two or more halogens or chalcogens.
(canceled)
A method for manufacturing a quantum-dot-containing composition, the method comprising:
- an adjustment step of adjusting:
- a first solution group formed of solutions each individually containing two or more compounds;
- a second solution group formed of solutions each individually containing one or more compounds, and single atoms formed of one or more halogens or chalcogens;
- and a third solution group formed of solutions each individually containing single atoms formed of two or more halogens or chalcogens;
- a mixed solution preparing step of mixing together the first solution group, the second solution group, and the third solution group, all of which are prepared at the adjustment step;
- and preparing a mixed solution;
- a mixing step of:
- delivering, in a form of droplets, the mixed solution prepared at the mixed solution preparing step to either a dispersion liquid in which quantum dots are dispersed, the quantum dots each having a surface provided with only one equivalent crystal plane, or a dispersion liquid in which quantum dots are dispersed, the quantum dots each having a surface provided with two or more different equivalent crystal planes;
- and mixing the dispersion liquid and the mixed solution together;
- a precipitation step of precipitating the quantum dots in the dispersion liquid subjected to the mixing step;
- and
- a redispersion step of redispersing, in a liquid, the quantum dots precipitated at the precipitation step.
Dependencies are inferred from the claim text.