# US 2013/0278486 A1 · Distortion-correcting deformable displays

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- Number: US 2013/0278486 A1
- Document ID: US20130278486A1
- Status: Published application
- Kind: A1
- Application number: 13/811,220
- Filed: 2012-04-23
- Published: 2013-10-24
- Earliest claimed: 2012-04-23
- Assignees: Empire Technology Development LLC
- Inventors: Gary Lynn Duerksen; Seth Adrian Miller
- Web page: https://patentgrep.com/patent/US20130278486A1

## CPC

- G09G 3/035: {for flexible display surfaces}
- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- G09G 3/34: by control of light from an independent source
- G09G 2320/0693: Calibration of display systems
- G09G 2340/0464: Positioning
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

Provided herein are devices and methods relating to detecting and/or correcting distortions and other events that can occur to a display surface so that a desired image is viewed despite the presence of a distortion in the display surface itself.

## Claims

### Claim 1

A self-correcting deformable display comprising:
a deformable display comprising at least a first pixel and a second pixel;
a processor in communication with the deformable display; and
at least one strain sensor incorporated into the deformable display, wherein the strain sensor is in communication with the processor, and wherein the processor is in communication with the deformable display.

### Claim 2 (depends on 1)

The self-correcting deformable display of claim 1, wherein the strain sensor is configured to detect a distortion between the first pixel and the second pixel and to provide a datum regarding the distortion.

### Claim 3 (depends on 2)

The self-correcting deformable display of claim 2, wherein the processor is configured to use the datum regarding the distortion to alter an image to be provided on the deformable display.

### Claim 4 (depends on 3)

The self-correcting deformable display of claim 3, wherein the strain sensor comprises at least one of a resistive wire, a capacitive gauge, or a light guide.

### Claim 5 (depends on 4)

The self-correcting deformable display of claim 4, wherein the resistive wire comprises at least one of: a carbon nano-tube, a conducting polymer, a graphite-filled polymer, a graphene-filled polymer, or a metal-filled polymers.

### Claim 6 (depends on 3)

The self-correcting deformable display of claim 3, wherein the deformable display comprises an elastomer substrate.

### Claim 7 (depends on 3)

The self-correcting deformable display of claim 3, wherein the at least one strain sensor is part of an array of strain sensors.

### Claim 8 (depends on 7)

The self-correcting deformable display of claim 7, wherein the at least the first pixel and the second pixel is part of an array of pixels.

### Claim 9 (depends on 8)

The self-correcting deformable display of claim 8, wherein a density of strain sensors is about 1/10 a density of pixels in the deformable display.

### Claim 10

(canceled)

### Claim 11 (depends on 3)

The self-correcting deformable display of claim 3, wherein the processor is configured to provide an initial image, process information from the at least one strain sensor to transform the initial image into an altered image, and display the altered image on the deformable display.

### Claim 12

(canceled)

### Claim 13 (depends on 3)

The self-correcting deformable display of claim 3, wherein the strain sensor comprises polydimethylsiloxane doped with multi-wall carbon nanotubes.

### Claim 14 (depends on 13)

The self-correcting deformable display of claim 13, wherein the strain sensor comprises a dual-axis resistivity strain gauge.

### Claim 15 (depends on 14)

The self-correcting deformable display of claim 14, wherein the dual-axis resistivity strain gauge comprises a first member intersecting a second member.

### Claim 16 (depends on 15)

The self-correcting deformable display of claim 15, wherein the first member intersecting the second member form a cross shape comprising a first end, a second end, a third end, and a fourth end.

### Claim 17 (depends on 16)

The self-correcting deformable display of claim 16, wherein a first electrical lead is connected to the first end, a second electrical lead is connected to the second end, a third electrical lead is connected to the third end, and a fourth electrical lead is connected to the fourth end.

### Claim 18 (depends on 17)

The self-correcting deformable display of claim 17, wherein the first electrical lead and the first end form about a 90 degree angle, wherein the second electrical lead and the second end form about a 90 degree angle, wherein the third electrical lead and the third end form about a 90 degree angle, and wherein the fourth electrical lead and the fourth end form about a 90 degree angle.

### Claim 19

(canceled)

### Claim 20

(canceled)

### Claim 21

(canceled)

### Claim 22

(canceled)

### Claim 23 (depends on 3)

The self-correcting deformable display of claim 3, wherein the first pixel comprises a first light emitting diode and wherein the second pixel comprises a second light emitting diode.

### Claim 24 (depends on 3)

The self-correcting deformable display of claim 3, further comprising a second strain sensor.

### Claim 25 (depends on 24)

The self-correcting deformable display of claim 24, wherein a distance between the first strain sensor and the second strain sensor is no more than about Wmax, wherein Wmax=((distance between the first pixel and the second pixel)*π/2*(maximum strain).

### Claim 26

(canceled)

### Claim 27

(canceled)

### Claim 28

(canceled)

### Claim 29

A self-correcting deformable display, the display comprising:
a display substrate;
an array of strain sensors associated with the display substrate;
a processor configured to generate a distortion map from the array of strain sensors, wherein the distortion map comprises a collection of strain values from the array of strain sensors, and wherein the distortion map represents the distortion of an original desired image given a distortion to the display substrate; and
a distortion compensation filter, the filter configured to use the distortion map to adjust the original desired image to a compensated image that can be displayed on the display substrate, wherein the compensated image compensates for the distortion to produce an appearance of a compensated desired image when the display substrate is distorted.

### Claim 30 (depends on 29)

The display of claim 29, wherein the appearance of the compensated desired image and the original desired image are a same image.

### Claim 31 (depends on 29)

The display of claim 29, wherein the appearance of the original desired image and the appearance of the compensated desired image are substantially similar.

### Claim 32

A method of providing a self-correcting image, the method comprising:
providing a deformable display;
distorting the display to provide a distorted deformable display;
measuring at least one amount of distortion of the display resulting from distorting the display to create a distortion map;
providing an original image;
using the distortion map to adjust the original image to create a compensated image; and
displaying the compensated image on the distorted deformable display, wherein the compensated image has an appearance that is similar to the original image when displayed on the distorted deformable display.

### Claim 33 (depends on 32)

The method of claim 32, wherein the measuring is achieved by measuring a change in a resistivity.

### Claim 34

(canceled)

### Claim 35 (depends on 32)

The method of claim 32, wherein the amount of distortion of the display is determined by measuring a displacement of at least one pixel from a first position to a second position, wherein in the first position the deformable display surface is at rest, and wherein in the second position the deformable display surface is distorted.

### Claim 36

(canceled)

### Claim 37

(canceled)

### Claim 38 (depends on 32)

The method of claim 32, wherein displaying the compensated image comprises dropping pixels from the deformable display so that they do not participate in image creation.

### Claim 39 (depends on 32)

The method of claim 32, wherein displaying the compensated image comprises cropping such that only a subpart of the original image is viewable on the distorted deformable display.

### Claim 40

A method of calibrating a pixel intensity, the method comprising:
providing a flexible display surface comprising an array of pixels, wherein the display surface comprises at least a first axis of the display, a second axis of the display, and a center of the display;
determining a global scale factor of the first axis and the second axis;
determining the center of the display;
determining a displacement of at least one pixel from a first position to a second position, wherein the first position is where the pixel is when the flexible display surface is at rest, and wherein the second position is where the pixel is when the flexible display surface is deformed; and
calibrating the pixel intensity to compensate for the displacement.

### Claim 41

(canceled)

### Claim 42

(canceled)

### Claim 43

(canceled)

### Claim 44

(canceled)

### Claim 45 (depends on 1)

A viewing surface comprising the display of claim 1, wherein the viewing surface is part of at least one of the following: a contact lens, a rigid curved surface, a flexible surface, a display panel on an automobile.
