Light-emitting device
View Patent ↗A light-emitting device is capable of receiving a first voltage signal, a second voltage signal, and a third voltage signal in sequence. The light-emitting device includes a first light-emitting unit, a second light-emitting unit, and a switching. The first voltage signal, the second voltage signal, and the third voltage signal is configured to introduce a first current signal, a second current signal, and a third current signal, respectively. The light-emitting device is configured to emit a first light when introducing the first current signal, the second current signal, and the third current signal. The light-emitting device is configured to emit a second light when introducing the second current signal and the third current signal. The light-emitting device is configured to emit a third light when introducing the second current signal.
1. A light-emitting device capable of receiving a periodic voltage signal comprising a first voltage signal, a second voltage signal, and a third voltage signal in sequence, the light-emitting device comprising:
a first light-emitting unit;
a second light-emitting unit; and
a switching unit electrically connected to the first light-emitting unit and the second light-emitting unit,
wherein the first voltage signal, the second voltage signal, and the third voltage signal is configured to introduce a first current signal, a second current signal, and a third current signal, respectively, and
wherein the light-emitting device is configured to emit a first light when introducing the first current signal, the second current signal, and the third current signal in sequence,
wherein the light-emitting device is configured to emit a second light when introducing the second current signal and the third current signal without introducing the first current signal in advance, and
wherein the light-emitting device is configured to emit a third light when introducing the second current signal without introducing the first current signal and the third current signal.
2. The light-emitting device of claim 1 , further comprising a capacitor electrically connected to the first light-emitting element unit in parallel.
3. The light-emitting device of claim 1 , wherein each of the first and second light-emitting units comprises a first bonding pad and a second bonding pad.
4. The light-emitting device of claim 1 , wherein the first light-emitting unit and the second light emitting unit are commonly formed on a substrate.
5. The light-emitting device of claim 1 , wherein the first voltage signal is in a range of 27-80V, the second voltage signal is in a range of 54-150V.
6. The light-emitting device of claim 1 , wherein the first light-emitting unit comprises N numbers of light-emitting diodes, the second light-emitting unit comprises M numbers of light-emitting diodes, wherein N≧1, M≧1, and N-M≦3.
7. The light-emitting device of claim 1 , further comprising a current-limiting unit electrically connected to the first light-emitting unit.
8. The light-emitting device of claim 1 , wherein the first light-emitting unit, the second light-emitting unit and the switching unit are commonly formed on a carrier.
9. The light-emitting device of claim 1 , wherein the first light-emitting unit and the second light-emitting unit can be combined in connections with different time durations.