Paint on micro chip touch screens

Patent metadata

Field	Value
Publication number	US-11790072-B2
Application number	US-201916502979-A
Country	US
Kind code	B2
Filing date	Jul 3, 2019
Priority date	May 30, 2017
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A system for a touch screen interface that includes a coating including a plurality of a touch activated microchips; and a projector for projecting a light image onto the coating that is applied to a touch screen substrate. The system also includes an image calibrator that calibrates touch activated microchips in the coating to features of the light image projected onto the coating. The system further includes a receiver for receiving signal from the touch activated microchips when said feature of the light image is activated.

First claim

What is claimed is:

1. A method for forming a touch screen comprising:
applying a coating including a binder, solvent, pigment and a plurality of pressure sensitive microchips, each pressure sensitive microchip including a pressure sensitive capacitor on a semiconductor substrate, to a substrate surface for a touch screen;
projecting an image for a touch screen interface on the substrate surface for the touch screen;
calibrating the pressure sensitive microchips to features of the image for the touch screen interface; and
activating one of the features of the image by pressure activating the pressure sensitive microchips that are calibrated to that feature.

2. The method of claim 1 , wherein applying the coating comprises spraying a liquid including the plurality of pressure sensitive microchips.

3. The method of claim 1 , wherein the coating is a wall covering having the pressure sensitive microchips present therein.

4. The method of claim 1 , wherein the pressure sensitive capacitor is configured to change its capacitance in response to a user's touch.

5. The method of claim 1 , wherein the pressure sensitive microchips further comprise a light sensor.

6. The method of claim 5 , wherein calibrating the pressure sensitive microchips to features of the image for the touch screen interface includes projecting a light image to the plurality of the pressure sensitive microchips in the coating, and the light sensor of the pressure sensitive microchips senses alignment objects in the light image for the calibrating the location of the pressure sensitive microchips to the features of the image for the touch screen interface.

7. The method of claim 1 , wherein the pressure sensitive microchips include a battery.

8. The method of claim 1 , wherein the pressure sensitive microchips are powered by an RF coil backing the coating.

9. The method of claim 1 , wherein the pressure activation of the pressure sensitive microchips includes a fingertip touch by a user.

Assignees

• IBM

Inventors

• Ashoori Maryam
• Briggs Benjamin D
• Canaperi Justin A
• Clevenger Lawrence A
• Clevenger Leigh Anne H
• Rizzolo Michael
• Skordas Spyridon

Classifications

• G06F21/35 Primary

  communicating wirelessly · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06K19/0723

  the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs · CPC title

• G06K19/07775

  the antenna being on-chip · CPC title

• G07C9/00182

  operated with unidirectional data transmission between data carrier and locks · CPC title