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US 8,941,566 B2Granted
Array of luminescent elements
Assignee3M Innovative Properties Company
InventorMichael A. Haase
Life of this patent
Estimating the term…
Abstract
Light emitting systems and method of fabricating the same are disclosed. The light emitting system includes two or more monolithically integrated luminescent elements. Each luminescent element includes an electroluminescent device and a dedicated switching circuit for driving the electroluminescent device. At least one luminescent element includes a potential well for down converting light emitted by the electroluminescent device in the luminescent element.
Claims13
A light emitting system, comprising:
- at least one first luminescent element capable of outputting light at a first wavelength;
- at least one second luminescent element capable of outputting light at a second wavelength different than the first wavelength;
- and
- at least one third luminescent element capable of outputting light at a third wavelength different than the first and second wavelengths and comprising:
- an electroluminescent device capable of emitting light at the first wavelength;
- a first photoluminescent element for converting at least a portion of light emitted by the electroluminescent device from the first wavelength to the second wavelength;
- and
- a second photoluminescent element for converting at least a portion of light emitted by the electroluminescent device or light converted by the first photoluminescent element to the third wavelength.
5 more elements
A light emitting system, comprising:
- a plurality of electroluminescent devices capable of emitting light, wherein a first light converting element covers two or more electroluminescent devices for down converting at least a portion of light emitted by the two or more electroluminescent devices, and a second light converting element covers a portion of the first light converting element for converting at least a portion of light emitted by the first light converting element, wherein at least one of the first and second light converting elements comprises a potential well.
A light emitting system, comprising:
- at least one first luminescent element capable of outputting light at a first wavelength;
- and
- at least one second luminescent element capable of outputting light at a second wavelength different from the first wavelength and comprising:
- an electroluminescent device capable of emitting light at the first wavelength;
- a first light converting element for converting at least a portion of light emitted by the electroluminescent device from the first wavelength to a third wavelength different from the first and second wavelengths;
- and
- a second light converting element for converting at least a portion of light converted by the first light converting element from the third wavelength to the second wavelength.
4 more elements
Dependencies are inferred from the claim text.