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US 11,999,632 B2Granted
Quantum dot, display panel and display device
AssigneeLG Display Co., Ltd.
InventorsKyungKook Jang, DaBin Kim, SeungRyong Lee
Life of this patent
Estimating the term…
Abstract
A quantum dot includes a core, a first shell and a second shell. The core includes a group III-V compound. The first shell includes a second semiconductor nanocrystal. The second semiconductor nanocrystal includes zinc, selenium and a dopant including tellurium. The second shell includes a third semiconductor nanocrystal. The third semiconductor nanocrystal includes a II-VI compound.
Claims9
A quantum dot, comprising:
- a core including a group III-V compound;
- a first shell including a second semiconductor nanocrystal, the second semiconductor nanocrystal including:
- zinc,
- selenium, and
- a dopant including tellurium;
- and
- a second shell including a third semiconductor nanocrystal, the third semiconductor nanocrystal including a II-VI compound,
- wherein:
- the dopant of tellurium is positioned at an interface between the first shell and the second shell;
- the molar ratio of tellurium to selenium in the first shell is in a range of 5:95 to 50:50;
- and
- the molar ratio of tellurium to zinc in the first shell is in a range of 6:94 to 35:65.
9 more elements
A display panel, comprising:
- a light source configured to emit light having a wavelength of substantially 450 nm, the light having a first color;
- and
- a wavelength conversion layer positioned on a path of the light emitted from the light source, the wavelength conversion layer including a quantum dot configured to convert the light having the first color into light having a second color, and the quantum dot including:
- a core comprising a group III-V compound;
- a first shell including a second semiconductor nanocrystal, the second semiconductor nanocrystal including:
- zinc,
- selenium, and
- a dopant including tellurium;
- and
- a second shell including a third semiconductor nanocrystal, the third semiconductor nanocrystal including a II-VI compound,
- wherein:
- the dopant of tellurium is positioned at an interface between the first shell and the second shell;
- the molar ratio of tellurium to selenium in the first shell is in a range of 5:95 to 50:50;
- and
- the molar ratio of tellurium to zinc in the first shell is in a range of 6:94 to 35:65.
12 more elements
A display device, comprising a display panel and a controller configured to control the display panel, wherein the display panel comprises:
- a light source configured to emit light having a wavelength of substantially 450 nm, the light having a first color;
- and
- a wavelength conversion layer positioned on a path of the light emitted from the light source, the wavelength conversion layer including a quantum dot configured to convert the light having the first color into light having a second color, and the quantum dot including:
- a core comprising a group III-V compound;
- a first shell including a second semiconductor nanocrystal, the second semiconductor nanocrystal including:
- zinc,
- selenium, and
- a dopant including tellurium;
- and
- a second shell including a third semiconductor nanocrystal, the third semiconductor nanocrystal including a II-VI compound,
- wherein:
- the dopant of tellurium is positioned at an interface between the first shell and the second shell;
- the molar ratio of tellurium to selenium in the first shell is in a range of 5:95 to
- 50:50;
- and
- the molar ratio of tellurium to zinc in the first shell is in a range of 6:94 to 35:65.
13 more elements
Dependencies are inferred from the claim text.