Micro solar cell powered micro LED display

Patent metadata

Field	Value
Publication number	US-9484332-B2
Application number	US-201514661135-A
Country	US
Kind code	B2
Filing date	Mar 18, 2015
Priority date	Mar 18, 2015
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

Micro LEDs may be placed on a substrate in regularly spaced rows with an empty row between at least two successive rows of micro LED. A micro solar cell may then be placed in the empty row.

First claim

What is claimed is:

1. A method comprising:
placing micro light emitting diodes on a substrate in regularly spaced rows;
leaving an empty row between at least two successive rows of micro light emitting diodes; and
placing a micro solar cell in said empty row.

2. The method of claim 1 including placing two successive rows of micro light emitting diodes, followed by the empty row.

3. The method of claim 2 including providing driver circuity between said successive rows of micro light emitting diodes.

4. The method of claim 1 including providing a voltage conditioning circuit in said empty row.

5. The method of claim 1 including placing two side by side micro solar cells in said empty row.

6. The method of claim 4 including connecting a series of micro solar cells to said voltage conditioning circuit.

7. The method of claim 1 including placing said solar cells and said micro light emitting diodes on said substrate using micro place and bond.

8. An apparatus comprising:
a substrate;
micro light emitting diodes arranged on the substrate in regularly spaced rows;
a micro solar cell between rows of micro light emitting diodes; and
two successive rows of micro light emitting diodes, followed by the row with a micro solar cell.

9. The apparatus of claim 8 including driver circuity between said successive rows of micro light emitting diodes.

10. The apparatus of claim 8 including a voltage conditioning circuit in a row with a micro solar cell.

11. The apparatus of claim 10 , a series of micro solar cells connected to said voltage conditioning circuit.

12. The apparatus of claim 8 including two side by side micro solar cells in between rows of micro light emitting diodes.

13. The apparatus of claim 8 including said solar cells and said micro light emitting diodes mounted on said substrate using micro place and bond.

14. A method comprising:
placing micro light emitting diodes on a substrate in regularly spaced rows;
placing a micro solar cell in between at least two successive rows of micro light emitting diodes; and
placing two successive rows of micro light emitting diodes, followed by an empty row.

15. The method of claim 14 including providing driver circuity between said successive rows of micro light emitting diodes.

16. The method of claim 14 including providing a voltage conditioning circuit in said empty row.

17. The method of claim 16 including connecting a series of micro solar cells to said voltage conditioning circuit.

18. The method of claim 14 including placing two side by side micro solar cells in said empty row.

19. The method of claim 14 including placing said solar cells and said micro light emitting diodes on said substrate using micro place and bond.

Assignees

• Intel Corp

Inventors

• Natarajan Kumaran
• Radhakrishnan Prakash K
• Chang Peter L
• Parikh Kunjal

Classifications

• G09G3/32

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• H10W90/00 Primary

  Package configurations · CPC title

• H01L31/18

  Electricity · mapped topic

• G09G2360/142

  the light being detected by light detection means within each pixel · CPC title

• G09G2330/02

  Details of power systems and of start or stop of display operation · CPC title