Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Nov 27, 2024
filing date -
Nov 27, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
An object is to provide a light-emitting element which uses a plurality of kinds of light-emitting dopants and has high emission efficiency. In one embodiment of the present invention, a light-emitting device, a light-emitting module, a light-emitting display device, an electronic device, and a lighting device each having reduced power consumption by using the above light-emitting element are provided. Attention is paid to Förster mechanism, which is one of mechanisms of intermolecular energy transfer. Efficient energy transfer by Förster mechanism is achieved by making an emission wavelength of a molecule which donates energy overlap with a local maximum peak on the longest wavelength side of a graph obtained by multiplying an absorption spectrum of a molecule which receives energy by a wavelength raised to the fourth power.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
- B60Q:ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE....
- F21S:NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
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