Rigid micro-modules with iLED and light conductor

Patent metadata

Field	Value
Publication number	US-11890890-B2
Application number	US-202017064387-A
Country	US
Kind code	B2
Filing date	Oct 6, 2020
Priority date	Nov 13, 2017
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

A light-emitting module structure comprises a support substrate and a micro-module disposed on or in the support substrate that extends over only a portion of the support substrate. The micro-module comprises a rigid module substrate, an inorganic light-emitting diode, a power source, and a control circuit. The inorganic light-emitting diode, the power source, and the control circuit are disposed on or in the module substrate and the control circuit receives power from the power source to control the inorganic light-emitting diode to emit light. A light conductor is disposed on or in the support substrate and in alignment with the micro-module so that the inorganic light-emitting diode is disposed to emit light into the light conductor and the light conductor conducts the light beyond the micro-module to emit the light from the light conductor.

First claim

What is claimed is:

1. A piezo-electric power source comprising:
a stack of piezo-electric elements that are electrically connected in serial, wherein the piezo-electric elements of the stack are responsive to mechanical pressure to produce electrical power; and
a control circuit electrically connected to the stack of piezo-electric elements for converting the electrical power from one temporal duration to another temporal duration and the control circuit is adapted to convert a press duration that is a temporal duration that mechanical pressure is applied to the stack of piezo-electric elements to an output duration during which energy is output,
wherein the control circuit controls the output duration to be temporally delayed from the press duration by at least one msec.

2. The piezo-electric power source of claim 1 , comprising an electrical conductor disposed in the stack between at least two of the piezo-electric elements.

3. The piezo-electric power source of claim 1 , wherein the piezo-electric elements are no more than 500 microns thick.

4. The piezo-electric power source of claim 1 , wherein the stack of piezo-electric elements has a thickness of at least 100 microns.

5. The piezo-electric power source of claim 1 , wherein the stack of piezo-electric elements comprises at least two piezo-electric elements.

6. The piezo-electric power source of claim 1 , wherein the stack of piezo-electric elements comprises at least three piezo-electric elements.

7. The piezo-electric power source of claim 1 , wherein the stack has an area in a plane orthogonal to the stack of piezo-electric elements.

8. The piezo-electric power source of claim 1 , comprising a plurality of stacks of piezo-electric elements, wherein the stacks of piezo-electric elements in the plurality of stacks of piezo-electric elements are electrically connected in parallel.

9. The piezo-electric power source of claim 1 , comprising a plurality of stacks of piezo-electric elements wherein each stack of the plurality of stacks of piezo-electric elements is spatially separated from every other stack of piezo-electric elements.

10. The piezo-electric power source of claim 1 , wherein one or more of the piezo-electric elements of the stack of piezo-electric elements is a piezo-electric capacitor.

11. The piezo-electric power source of claim 1 , comprising a control circuit, electrically connected to the stack of piezo-electric elements, for storing at least a portion of the electrical power.

12. The piezo-electric power source of claim 1 , wherein the output duration is greater than or equal to one msec.

13. The piezo-electric power source of claim 1 , wherein
the piezo-electric power source comprises a support substrate and the stack of piezo-electric elements is disposed on the support substrate, or
the piezo-electric power source comprises a module substrate, and the stack of piezo-electric elements is disposed on the module substrate.

14. The piezo-electric power source of claim 1 , comprising a plurality of stacks of piezo-electric elements, wherein the stacks of piezo-electric elements in the plurality of stacks of piezo-electric elements are electrically connected in parallel and each stack of the plurality of stacks of piezo-electric elements is spatially separated from every other stack of piezo-electric elements.

15. A piezo-electric power source comprising:
a stack of piezo-electric elements that are electrically connected in serial, wherein the piezo-electric elements of the stack are responsive to mechanical pressure to produce electrical power; and
a control circuit electrically connected to the stack of piezo-electric elements for converting the electrical power from one temporal duration to another temporal duration and the control circuit is adapted to convert a press duration that is a temporal duration that mechanical pressure is applied to the stack of piezo-electric elements to an output duration during which energy is output,
wherein the output duration is less than the press duration.

16. A piezo-electric power source comprising:
a stack of piezo-electric elements that are electrically connected in serial, wherein the piezo-electric elements of the stack are responsive to mechanical pressure to produce electrical power; and
a control circuit electrically connected to the stack of piezo-electric elements for converting the electrical power from one temporal duration to another temporal duration and the control circuit is adapted to convert a press duration that is a temporal duration that mechanical pressure is applied to the stack of piezo-electric elements to an output duration during which energy is output,
wherein the output duration is greater than the press duration.

17. A piezo-electric power source comprising:
a stack of piezo-electric elements that are electrically connected in serial, wherein the piezo-electric elements of the stack are responsive to mechanical pressure to produce electrical power; and
a control circuit electrically connected to the stack of piezo-electric elements for converting the electrical power from one temporal duration to another temporal duration and the control circuit is adapted to convert a press duration that is a temporal duration that mechanical pressure is applied to the stack of piezo-electric elements to an output duration during which energy is output,
wherein the output duration is greater than or equal to one msec.

Assignees

• X Display Company Tech Ltd

Inventors

• Willner Mark
• Cok Ronald S
• Rotzoll Robert R
• Bower Christopher Andrew

Classifications

• H10W90/00

  Package configurations · CPC title

• B42D25/36 Primary

  comprising special materials · CPC title

• B42D25/29

  Securities; Bank notes · CPC title

• B42D25/305

  Associated digital information (record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00) · CPC title

• B42D25/355

  Security threads · CPC title