ALTERNATING CURRENT LIGHT EMITTING DEVICE
First Claim
Patent Images
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 modulating a waveform of the AC voltage source.
2 Assignments
0 Petitions
Accused Products
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.
-
Citations
31 Claims
-
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 modulating a waveform of the AC voltage source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. 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 frequency modulation unit, coupled between the AC LED module and an AC voltage source, for adjusting a frequency of the AC voltage source. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. An alternating current (AC) light emitting device, comprising:
-
a plurality of light emitting diodes (LEDs), wherein at least some of the LEDs have different micro diode areas; and a control unit for respectively controlling the LEDs, wherein when the LEDs are driven by an AC voltage source, the control unit sequentially turns on the LEDs having the different micro diode areas according to a voltage of the AC voltage source. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. An alternating current (AC) light emitting device, comprising:
-
a control unit; and a plurality of LEDs each having an anode and a cathode, which are electrically connected to the control unit, wherein when the LEDs are driven by an AC voltage source, the control unit changes serial or parallel connection states of the LEDs according to a voltage of the AC voltage source so that currents flowing through the LEDs become uniform. - View Dependent Claims (29, 30, 31)
-
Specification