Flexible OLED Display Burn-in Compensation via Dynamic Content Redistribution

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Solution Overview

Problem

Flexible electronic devices with OLED displays suffer from performance degradation, such as burn-in and uneven brightness, when certain portions are used more than others, leading to dimmer and yellowish appearances when unfolded.

Innovation Solution

The implementation of processors that monitor and record presentation parameters to distribute burn-in evenly across the display by adjusting brightness and color on less used portions, and prompting users to alternate usage to ensure equal display portion usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If content is continuously presented on certain portions of the flexible display, then user interaction and functionality are improved, but performance degradation such as burn-in and uneven brightness occurs

Engineering Contradiction:

Improveuser interactionVSAvoiddisplay performance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary actions by monitoring content presentation patterns and proactively distributing burn-in exposure before severe degradation occurs. The processor tracks which display portions are used more frequently and pre-emptively adjusts content distribution to prevent extreme unevenness in display performance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes operational parameters by dynamically adjusting which portions of the display present content based on monitored usage patterns. The processor modifies content presentation parameters (location, timing, frequency) to equalize burn-in distribution across all display portions while maintaining functional usability.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the flexible display is deformed by bending to access different operating modes, then adaptability to different environments is improved, but non-uniform usage patterns cause performance degradation

Engineering Contradiction:

Improveoperating modesVSAvoiddisplay uniformity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system implements feedback by continuously monitoring which portions of the flexible display are used during different operating modes and bending configurations. This feedback information is used to adjust future content presentation patterns, creating a closed-loop system that adapts to actual usage and equalizes wear across all display portions.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system applies dynamics by making the content presentation pattern adaptive and changeable based on monitored usage. The processor dynamically redistributes content across different display portions over time, transforming the static display usage pattern into a dynamic one that responds to actual usage conditions and prevents localized degradation.

Inventive Principle:

Principle #15Dynamics

3Ease of manufacture

If burn-in is concentrated on specific display portions, then manufacturing simplicity is maintained, but visual quality and user experience deteriorate

Engineering Contradiction:

Improvedisplay manufacturingVSAvoiddisplay quality uniformity

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The system applies self-service by automatically monitoring its own usage patterns and self-correcting imbalances without external intervention. The processor autonomously detects which display portions are overused and redistributes content to underused portions, enabling the display system to self-regulate and maintain uniform quality throughout its operational life.

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach maintains a substantially similar quality level across all display portions, preventing dimmer or yellowish appearances and ensuring uniform visual performance when the device is in its undeformed configuration.

Implementation Method 1

portable electronic devices with OLED displays

Methodology Applied

Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS11282476B2Deformable electronic device and methods and systems for display remediation to compensate performance degradation

Publication Date: 2022.03.22 MOTOROLA MOBILITY LLC

AI summary

An electronic device includes a flexible display that can be deformed at a deformation portion to partition the flexible display into a first portion and a second portion. One or more processors present content on the first portion of the flexible display and remediate the second portion of the flexible display to compensate performance degradation of the flexible display resulting from presenting content on the first portion of the flexible display.