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US 2021/0078298 A1Published application
Transparent display
OwnerSarah MORGANinventor
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Abstract
Described herein is a transparent or translucent substrate at least partially coated with a quantum dot coating such that the coating is invisible in a first non-excited state of the coating and the coating is visible in a second excited state of the coating. Also described herein is a laminate, a glazing unit and a sunroof comprising the described coated substrate. A method of preparing the coated substrate is also described.
Claims21
A quantum dot coated substrate, comprising:
- a transparent or translucent substrate;
- and
- a quantum dot coating applied to at least part of the substrate, the quantum dot coating defining a first non-excited state and a second excited state, the absorbance of the quantum dot coating in the visible region of the electromagnetic spectrum matching the absorbance of the substrate when the coating is in the first non-excited state and the absorbance of the quantum dot coating in the visible region of the electromagnetic spectrum differing from the absorbance of the substrate when the coating is in the second excited state, such that the coating is invisible in the first non-excited state and the coating is visible in the second excited state,
- wherein the quantum dots are coated at a density of from about 1·1013 to about 1·1019 quantum dot particles/cm2;
- and
- the quantum dot coating is configured to shift from the first non-excited state to the second excited state upon exposure to an excitation source.
3 more elements
(canceled)
Dependencies are inferred from the claim text.