Integrated photosensitive film and thin LED display

Patent metadata

Field	Value
Publication number	US-9985166-B2
Application number	US-201715609134-A
Country	US
Kind code	B2
Filing date	May 31, 2017
Priority date	Feb 4, 2014
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

A system to configure a conductive pathway and a method of forming a system of configurable conductivity pathways include a photosensitive layer that becomes conductive based on photoexcitation, and a light source layer deposited over the photosensitive layer, the light source layer selectively providing the photoexcitation to the photosensitive layer. The system further includes a controller to control the light source layer, the controller illuminating a portion of the light source layer corresponding with a user input image to photoexcite the photosensitive layer and configure the conductive pathway in the photosensitive layer according to the image.

First claim

What is claimed is:

1. A system to configure a conductive pathway, the system comprising:
a photosensitive layer configured to become conductive based on photoexcitation;
a light source layer disposed over the photosensitive layer, the light source layer including two or more light emitting diodes (LEDs) and configured to selectively provide the photoexcitation to respective portions of the photosensitive layer; and
a controller configured to control the two or more LEDs of the light source layer, the controller dynamically illuminating one or more LEDs of the two or more LEDs of the light source layer corresponding with a user input image to photoexcite the respective portions of the photosensitive layer to configure the conductive pathway along a plane of the photosensitive layer according to the image during the illumination of the one or more of the two or more LEDs of the light source layer.

2. The system according to claim 1 , further comprising a graphical user interface configured to facilitate input of the image to the controller.

3. The system according to claim 1 , wherein the light source layer comprises light emitting diodes (LEDs), quantum dots, a bulk semiconductor, or organic light emitting diodes (OLEDs).

4. The system according to claim 1 , further comprising a substrate configured to mechanically support the photosensitive layer.

5. The system according to claim 1 , wherein the photosensitive layer includes optical switching elements.

6. The system according to claim 1 , wherein the portion of the light source layer emits ultraviolet light based on control by the controller.

7. The system according to claim 1 , wherein the portion of the light source layer emits visible light based on control by the controller.

8. The system according to claim 1 , further comprising a second photosensitive layer disposed on the light source layer.

9. The system according to claim 8 , further comprising a second light source layer disposed on the second photosensitive layer, wherein the second light source layer is controlled by a second controller to configure conductive pathways in the second photosensitive layer.

10. The system according to claim 9 , wherein the second controller and the controller are a same controller.

Assignees

• Raytheon Co

Inventors

• Robson Michael H
• Pace Michael T

Classifications

• H05K2201/0112

  Absorbing light, e.g. dielectric layer with carbon filler for laser processing · CPC title

• H01L31/18 Primary

  Electricity · mapped topic

• Y02B20/346

  Cross-Sectional Technologies · mapped topic

• H05K1/0286 Primary

  Programmable, customizable or modifiable circuits (by programmable non-printed jumper connections H05K3/222) · CPC title

• H05K2201/10106

  Light emitting diode [LED] · CPC title