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AssigneePoro Technologies Ltd
InventorsTongtong ZHU, Alex YUDIN, Simon HAMMERSLEY
Estimating the term…
A display device comprising a variable-wavelength light emitting diode (LED) is provided. The variable-wavelength LED comprises: an n-doped portion, a p-doped portion, and a light emitting region located between the n-doped portion and the p-doped portion. The light emitting region comprises a light-emitting layer which emits light at a peak emission wavelength under electrical bias thereacross. The variable-wavelength LED is configured to receive a power supply, and the peak emission wavelength of the LED is continuously controllable over an emission wavelength range of at least 40 nm by varying the power supply.
A display device comprising a variable-wavelength light emitting diode (LED), the variable-wavelength LED comprising:
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The display device according to claim 28, in which the LED emits at a first peak emission wavelength below 570 nm when the power supply has a first current density, and a second peak emission wavelength above 610 nm longer than the first emission wavelength when the power supply has a second current density lower than the first current density, such that the LED emits green light in response to the first current density and red light in response to the second current density.
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Dependencies are inferred from the claim text.