US 2022/0093059 A1 · Reference Pixel Stressing for Burn-In Compensation Systems and Methods

Abstract

An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.

Claims22

Dependent claims

An electronic device comprising:

an electronic display comprising:
a plurality of display pixels configured to display an image based at least in part on compensated image data;
a stressed reference pixel configured to exhibit burn-in related aging in response to one or more stress sessions;
and
a non-stressed reference pixel configured to not undergo the one or more stress sessions;
and
image processing circuitry configured to:
determine a panel-specific aging profile based at least in part on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel;
generate one or more gain maps based at least in part on the panel-specific aging profile;
and
generate the compensated image data by applying the one or more gain maps to input image data.

8 more elements

Image processing circuitry configured to:

determine a panel-specific aging profile based at least in part on a voltage difference between a first measured voltage of a first reference pixel and a second measured voltage of a second reference pixel, wherein the first reference pixel has been intentionally stressed to exhibit burn-in related aging, wherein the panel-specific aging profile corresponds to a measured efficiency drop of the first reference pixel due at least in part to the burn-in related aging;
generate one or more gain maps based at least in part on the panel-specific aging profile and a burn-in history map corresponding to estimated burn-in related aging of a plurality of display pixels configured to display image content based at least in part on image data;
and
apply the one or more gain maps to the image data to compensate for the estimated burn-in related aging of the display pixels.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/376,125Filed 14 Jul 2021

Priority

24 Sep 2020

Published

24 Mar 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G09G 3/2092
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09G 5/10
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: intensity circuits
G09G 3/20
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes: for presentation of an…
G09G 2320/0233
Improving the quality of display appearance: improving the luminance or brightness uniformity across the screen

Reference Pixel Stressing for Burn-In Compensation Systems and Methods

Life of this patent

Reference Pixel Stressing for Burn-In Compensation Systems and Methods

Life of this patent

Abstract

Claims22