OLED Burn-In Mitigation via Dynamic Display Layer Repositioning
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Solution Overview
Problem
Organic light emitting diodes (OLED) displays suffer from burn-in due to continuous screen usage, leading to performance deterioration and afterimages.
Innovation Solution
An electronic device with a processor that executes applications with a first display layer for fixed content and a second layer for variable content, adjusting the size and display properties of the first layer based on the content, and temporarily moving it within the active area to mitigate burn-in.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same screen is continuously displayed on OLED display, then the display function is maintained, but pixel performance deteriorates and burn-in phenomenon occurs
Solution Approach 1:
The patent applies dynamics by making the display layer movable instead of fixed. The processor dynamically adjusts the position of the display layer within the active area, shifting it to different locations over time. This dynamic repositioning prevents static pixels from continuously emitting light in the same position, thereby preventing burn-in while maintaining display functionality.
Solution Approach 2:
The patent implements periodic action by repeatedly moving the display layer to different positions within the active area. The processor periodically shifts the display layer location, creating a cyclical pattern of pixel activation that distributes wear across different pixel regions. This periodic repositioning prevents any single pixel from being continuously stressed, extending screen lifespan.
2Reliability
If the display layer is reduced to a smaller size, then burn-in is mitigated, but the display area is reduced
Solution Approach 1:
The patent transitions from a static two-dimensional display problem to a dynamic three-dimensional solution by adding the time dimension. Instead of simply reducing display area, the system moves the display layer through different positions in space over time, utilizing the temporal dimension to distribute pixel usage. This allows full utilization of the active area while preventing burn-in through temporal variation.
Solution Approach 2:
The patent makes the display layer dynamic rather than static, allowing it to change position within the active area. This dynamic approach enables the system to maintain full display area utilization while preventing burn-in by ensuring no single pixel location is continuously activated. The display layer adapts its position based on usage patterns, optimizing both area utilization and burn-in resistance.
Data Source
AI summary
An electronic device according to various embodiments may comprise: a display panel having an active area of a first designated size; and a processor. The processor may be configured to: run a designated application comprising a first application display layer set to display fixed content, and a second application display layer set to display changing content; and, while the designated application is running, and on the basis of at least the fixed content, display the first application display layer in a second designated size smaller than the first designated size, and at least temporarily move, within the active area, the first application display layer displayed in the second designated size.