Multi-sequenced LEDs on two or more wires

• US 9,615,412 B2
• Filed: 03/06/2014
• Issued: 04/04/2017
• Est. Priority Date: 03/11/2013
• Status: Active Grant

• Current Assignee: Carmen Rapisarda
• Original Assignee: Carmen Rapisarda
• Inventors: Rapisarda, Carmen
• Primary Examiner(s): TRAN, THUY V
• Application Number:
  US14/199,689
• Publication Number:
  US 20140254146A1
• Time in Patent Office: 1,125 Days
• Field of Search: 315185 R, 315191, 315193, 315192, 315200 A, 315246, 362800, 362806
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/40 Details of LED load circuits

Abstract

The present invention is generally directed to sequencing two or more LEDs on two or more wires; if more than two wires are used, any two pairs of wires can be used as a pair of wires. Each pair of wires can be used to sequence two or more LEDs, and a sequencer can control sequencing of LEDs on multiple wires connected in a group, or in multiple groups of multiple wires. For a given pair of wires, a first group of LEDs is wired opposite a second group of LEDs so that only one group will emit light at one time depending upon the flow of an alternating current. Two groups of LEDs can also be created by using two different semiconductor materials alternately wired to a single anode and cathode pair of a single LED physical package.

Claims

1. An apparatus, comprising:

a first electrically conductive wire;

a second electrically conductive wire;

a first plurality of light emitting diodes (“

LEDs”

), each of which is comprised of a first semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the first plurality of LEDs has its negative lead contact electrically connected to the first electrically conductive wire and its positive lead contact electrically connected to the second electrically conductive wire;

a second plurality of light emitting diodes (“

LEDs”

), each of which is comprised of a second semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the second plurality of LEDs has its negative lead contact electrically connected to the second electrically conductive wire and its positive lead contact electrically connected to the first electrically conductive wire;

a controller that alternates the flow of a current through the first electrically conductive wire and the second electrically conductive wire between a first state and a second state;

a third electrically conductive wire;

a third plurality of light emitting diodes (“

LEDs”

), each of which is comprised of a third semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the third plurality of LEDs has its negative lead contact electrically connected to the third electrically conductive wire and its positive lead contact electrically connected to either the first electrically conductive wire or the second electrically conductive wire; and

a fourth plurality of light emitting diodes (“

LEDs”

), each of which is comprised of a fourth semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the fourth plurality of LEDs has its positive lead contact electrically connected to the third electrically conductive wire and its negative lead contact electrically connected to either the first electrically conductive wire or the second electrically conductive wire;

wherein the first semiconductor material in each of the second plurality of LEDs is actuated to emit light in the first state with a direct current but not in the second state with an alternated current while the second semiconductor material in each of the first plurality of LEDs is actuated to emit light in the second state but not in the first state; and

wherein every LED in the first and the second plurality of LEDs are electrically connected to the first and the second electrically conductive wires in parallel to form a string of LEDs.

2. The apparatus of claim 1, wherein the controller alternates the flow of a second current through the third electrically conductive wire and either the first electrically conductive wire or the second electrically conductive wire between a third state and a fourth state;

and

wherein the third semiconductor material in each of the third plurality of LEDs is actuated to emit light in the third state with a second direct current but not in the fourth state with a second alternated current while the fourth semiconductor material in each of the fourth plurality of LEDs is actuated to emit light in the fourth state but not in the third state.

3. The apparatus of claim 2, wherein the first, second, third, and fourth groups are arranged in a sequence to create a chasing effect when the controller alternates the flow of current through the first, second, third, and fourth states.

4. The apparatus of claim 2, further comprising:

a fourth electrically conductive wire;

a fifth plurality of LEDs, each of which is comprised of a fifth semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the fifth plurality of LEDs has its negative lead contact electrically connected to the fourth electrically conductive wire and its positive lead contact electrically connected to one of a group of wires consisting of the first, the second, and the third electrically conductive wires; and

a sixth plurality of LED, each of which is comprised of a sixth semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the sixth plurality of LEDs has its positive lead contact electrically connected to the fourth electrically conductive wire and its negative lead contact electrically connected to one of the group of wires.

5. The apparatus of claim 4, wherein the controller alternates the flow of a third current through the fourth electrically conductive wire and one of the group consisting of the first, second and third electrically conductive wires between a fifth state and a sixth state;

and

wherein the fifth semiconductor material in each of the fifth plurality of LEDs is actuated to emit light in the fifth state but not in the sixth state while the sixth semiconductor material in each of the sixth plurality of LEDs is actuated to emit light in the sixth state but not in the fifth state.

6. The apparatus of claim 5, wherein the first, second, third, fourth, fifth and sixth plurality of LEDs are arranged in a sequence to create a chasing effect when the controller alternates the flow of current through the first, second, third, fourth, fifth, and sixth states.

7. An electrical circuit, comprising:

a first electrically conductive wire;

a second electrically conductive wire;

at least one additional electrically conductive wire;

a first group of one or more light emitting diodes (“

LEDs”

), each of which is comprised of a first semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the first group of one or more LEDs has its negative lead contact electrically connected to the first electrically conductive wire and its positive lead contact electrically connected to the second electrically conductive wire;

a second group of one or more LEDs, each of which is comprised of a second semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the second group of one or more LEDs has its positive lead contact electrically connected to the first electrically conductive wire and its negative lead contact electrically connected to the second electrically conductive wire;

a third group of one or more LEDs, each of which is comprised of a third semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the third group of one or more LEDs has its negative lead contact electrically connected to a third electrically conductive wire from the at least one additional electrically conductive wire and its positive lead contact electrically connected to either the first electrically conductive wire or the second electrically conductive wire; and

a fourth group of one or more LEDs, each of which is comprised of a fourth semiconductor material having both a negative lead contact and a positive lead contact, wherein each of the fourth group of one or more LEDs has its positive lead contact electrically connected to the third electrically conductive wire and its negative lead contact electrically connected to either the first electrically conductive wire or the second electrically conductive wire;

a power source; and

a controller that alternates the flow of a current through the first electrically conductive wire and the second electrically conductive wire between a first state and a second state;

wherein the first semiconductor material in each of the first group of one or more LEDs is actuated to emit light in the first state but not in the second state while the second semiconductor material in each of the second group of one or more LEDs is actuated to emit light in the second state but not in the first state; and

wherein every LED in the first and the second groups of one or more LEDs are electrically connected to the first and the second electrically conductive wires in parallel to form a string of LEDs.

8. The electrical circuit of claim 7, wherein the controller alternates the flow of current through the third electrically conductive wire and one of the group consisting of the first electrically conductive wire, the second electrically conductive wire and one of the at least one additional electrically conductive wire other than the third electrically conductive wire between a third state and a fourth state;

and

wherein the third semiconductor material in each of the third group is actuated to emit light in the third state but not in the fourth state while the fourth semiconductor in the fourth group is actuated to emit light in the fourth state but not in the third state.

9. The electrical circuit of claim 8, wherein the controller alternates the flow of current between a pair of electrically conductive wires selected from the group consisting of the first electrically conductive wire, the second electrically conductive wire and a chosen wire of the at least one additional electrically conductive wire to create a chasing effect.