AC—LED system in single chip with three metal contacts
First Claim
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1. A LED system in a single chip with three metal contacts, comprising:
- first, second, and third metal contacts disposed on a substrate;
a plurality of LED units disposed on the substrate, comprising a first series of LED units having a first end coupled to the first metal contact and a second end coupled to the second metal contact,a second series of LED units having a first end coupled to the first metal contact and a second end coupled to the third metal contact, anda third series of LED units having a first end coupled to the second metal contact and a second end coupled to the third metal contact;
wherein any two of the three series of LED units are not parallel with each other.
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Abstract
A plurality of AC_LED units are coupled and disposed on a single chip to form an AC_LED system in single chip with three metal contacts to be driven by three-phase voltage sources. Alternatively, an AC_LED system in single chip with four metal contacts is also disclosed to be driven by four-phase voltage sources.
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Citations
5 Claims
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1. A LED system in a single chip with three metal contacts, comprising:
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first, second, and third metal contacts disposed on a substrate; a plurality of LED units disposed on the substrate, comprising a first series of LED units having a first end coupled to the first metal contact and a second end coupled to the second metal contact, a second series of LED units having a first end coupled to the first metal contact and a second end coupled to the third metal contact, and a third series of LED units having a first end coupled to the second metal contact and a second end coupled to the third metal contact; wherein any two of the three series of LED units are not parallel with each other. - View Dependent Claims (2, 3)
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4. An AC_LED system in a single chip comprising twelve DC_LED units on a same substrate, comprising:
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seven metal contacts each coupled to neighboring electrodes of neighboring DC_LED units; a positive electrode of a first DC_LED, a negative electrode of an eighth DC_LED, and a positive electrode of a second DC_LED, being coupled to a second metal contact; a negative electrode of the second DC_LED, a positive electrode of an ninth DC_LED, and a negative electrode of a third DC_LED, being coupled to a third metal contact; a positive electrode of the third DC_LED, a negative electrode of a tenth DC_LED, and a positive electrode of a fourth DC_LED, being coupled to a fourth metal contact; a negative electrode of the fourth DC_LED, a positive electrode of an eleventh DC_LED, and a negative electrode of a fifth DC_LED, being coupled to a fifth metal contact; a positive electrode of the fifth DC_LED, a negative electrode of a twelfth DC_LED, and a positive electrode of a sixth DC_LED, being coupled to a sixth metal contact; a negative electrode of the sixth DC_LED, a positive electrode of an seventh DC_LED, and a negative electrode of the first DC_LED, being coupled to a first metal contact; and a negative electrode of the seventh DC_LED, a positive electrode of the eighth DC_LED, and a negative electrode of the ninth DC_LED, a positive electrode of the tenth DC_LED, and a negative electrode of the eleventh DC_LED, a positive electrode of the twelfth DC_LED, being coupled to a seventh metal contact. - View Dependent Claims (5)
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Specification