FLEXIBLE LIGHTING DEVICE HAVING BOTH VISIBLE AND INFRARED LIGHT-EMITTING DIODES

• US 20150371972A1
• Filed: 06/20/2014
• Published: 12/24/2015
• Est. Priority Date: 06/20/2014
• Status: Active Grant

• Current Assignee: Grote Industries LLC (Grote Industries Incorporated)
• Original Assignee: Grote Industries LLC (Grote Industries Incorporated)
• Inventors: BROOKS, Timothy W., GRAMLICH, Donald L. Jr., CORWIN, William L., JONES, Scott J., MARX, Martin J., ROBBINS, Stanley D.
• Granted Patent: US 10,032,753 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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: H01L 2933/005 relating to encapsulations
• CPC Class Codes: H01L 2933/0066 relating to arrangements for conducting electric current to or from the semiconductor body
• CPC Class Codes: H01L 33/52 Encapsulations
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A flexible lighting array, comprising: a flexible substrate; a pair of first electrical connectors formed on the flexible substrate; a pair of second electrical connectors formed on the flexible substrate; an isolation element formed on the flexible substrate between the pair of first electrical connectors and the pair of second electrical connectors; a plurality of first light-emitting elements formed over the pair of first electrical connectors; one or more second light-emitting elements formed over the pair of second electrical connectors; and a transparent covering layer formed over the plurality of first light-emitting elements and the one or more second light-emitting elements, wherein, the plurality of first light-emitting elements are configured to emit visible light in a wavelength range of 200 nm to 800 nm, and the one or more second light-emitting elements are configured to emit infrared light in a wavelength range of 800 nm to 1200 nm.

Claims

1. A flexible lighting array, comprising:

a flexible substrate;

a pair of first electrical connectors formed on the flexible substrate;

a pair of second electrical connectors formed on the flexible substrate;

an isolation element formed on the flexible substrate between the pair of first electrical connectors and the pair of second electrical connectors;

a plurality of first light-emitting elements formed over the pair of first electrical connectors;

one or more second light-emitting elements formed over the pair of second electrical connectors; and

a transparent covering layer formed over the plurality of first light-emitting elements and the one or more second light-emitting elements,

wherein,

the plurality of first light-emitting elements are configured to emit visible light in a wavelength range of 200 nm to 800 nm, and

the one or more second light-emitting elements are configured to emit infrared light in a wavelength range of 800 nm to 1200 nm.

2. The flexible, light-emitting array of claim 1, wherein the first and second light-emitting elements are light-emitting diodes.

3. The flexible, light-emitting array of claim 1, wherein the plurality of first light-emitting elements are configured to emit light in a wavelength range of 620 nm to 650 nm.

4. The flexible, light-emitting array of claim 1, wherein the plurality of first light-emitting elements are formed into a first pattern.

5. The flexible, light-emitting array of claim 4, wherein the one or more second light-emitting elements are formed into a second pattern different from the first pattern.

6. The flexible, light-emitting array of claim 1, wherein the flexible substrate is attached to one of clothing or a vehicle.

7. The flexible, light-emitting sheet of claim 1, wherein the plurality of first light-emitting elements and the one or more light-emitting elements are within 12.5 micrometers of being the same height.

8. The flexible, light-emitting sheet of claim 1, wherein the transparent covering layer is one of a transparent upper substrate or a transparent conformal coat.

13. The method of claim 4, wherein in the depositing of the one or more second light-emitting elements, the one or more second light-emitting elements are formed into a second pattern different from the first pattern.

9. A method of manufacturing a flexible lighting array, comprising:

forming a flexible substrate;

forming a pair of first electrical connectors on the flexible substrate;

forming a pair of second electrical connectors on the flexible substrate;

forming an isolation element on the flexible substrate between the pair of first electrical connectors and the pair of second electrical connectors;

depositing a plurality of first light-emitting elements over the pair of first electrical connectors;

depositing one or more second light-emitting elements over the pair of second electrical connectors; and

forming a transparent covering layer over the plurality of first light-emitting elements and the one or more second light-emitting elements,

wherein,

the plurality of first light-emitting elements are configured to emit visible light in a wavelength range of 200 nm to 800 nm, and

the one or more second light-emitting elements are configured to emit infrared light in a wavelength range of 800 nm to 1200 nm.

10. The method of claim 9, wherein the first and second light-emitting elements are light-emitting diodes.

11. The method of claim 9, wherein the plurality of first light-emitting elements are configured to emit light in a wavelength range of 620 nm to 650 nm.

12. The method of claim 9, wherein in the depositing of the plurality of first light-emitting elements, the plurality of first light-emitting elements are formed into a first pattern.

14. The method of claim 9, further comprising

attaching the flexible substrate to an article of clothing.

15. The method of claim 9, further comprising

attaching the flexible substrate to a vehicle.

16. The method of claim 9, wherein the plurality of first light-emitting elements and the one or more light-emitting elements are within 12.5 micrometers of the same height.

17. The method of claim 9, wherein the transparent covering layer is one of a transparent upper substrate or a transparent conformal coat.