Alternating current light emitting device
First Claim
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1. An alternating current (AC) light emitting device, comprising:
- an AC light emitting diode (LED) module comprising at least two sets of micro-diodes; and
a waveform modulation unit, coupled between the AC LED module and an AC voltage source, for increasing the full width at half maximum (FWHM) of a waveform of the AC voltage source;
wherein the AC voltage source modulated by the waveform modulation unit turns on one of the two sets of micro-diodes for a first time in a positive half cycle, and turns on the other one of the two sets of micro-diodes for a second time in a negative half cycle.
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Abstract
An alternating current (AC) light emitting device includes an AC light emitting diode (LED) module and a waveform modulation unit. The AC LED module includes at least two sets of micro-diodes. The waveform modulation unit coupled between the AC LED module and an AC voltage source modulates a waveform of the AC voltage source.
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Citations
8 Claims
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1. An alternating current (AC) light emitting device, comprising:
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an AC light emitting diode (LED) module comprising at least two sets of micro-diodes; and a waveform modulation unit, coupled between the AC LED module and an AC voltage source, for increasing the full width at half maximum (FWHM) of a waveform of the AC voltage source; wherein the AC voltage source modulated by the waveform modulation unit turns on one of the two sets of micro-diodes for a first time in a positive half cycle, and turns on the other one of the two sets of micro-diodes for a second time in a negative half cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification