Display Pixel Shift Routes for Burn-In and Afterimage Control
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Solution Overview
Problem
Display devices experience pixel degradation and after-image formation due to prolonged display of static images, which existing pixel shift technologies fail to adequately address when the same pattern is repeatedly shifted within a pixel region.
Innovation Solution
A display device and method that determine the degree of pixel deterioration based on image data, calculate a shift route to disperse pixel stress, and shift the image along non-overlapping routes to prevent or reduce pixel degradation and after-image formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pixel shift technology displays the same pattern repeatedly within a pixel region, then image shifting is achieved, but pixel performance still deteriorates
Solution Approach 1:
The patent divides the display area into multiple pixel regions and assigns different shift routes to each region. Instead of shifting the same pattern repeatedly within a single pixel region, the system segments the display area and applies unique shift paths to each segment, thereby distributing pixel stress and preventing localized degradation.
Solution Approach 2:
The patent introduces multiple shift routes that extend in different directions and cover different paths across the display area. By utilizing spatial dimensionality and creating non-overlapping routes, the system achieves more effective pixel stress dispersion while maintaining image shifting functionality.
2Duration of action of stationary object
If the same data is output by a specific pixel for a long time, then image display is maintained, but pixel degradation occurs
Solution Approach 1:
The patent implements periodic image shifting at predetermined intervals to prevent continuous static display on the same pixels. By periodically changing the displayed image position and using non-overlapping shift routes, the system maintains display duration while preventing pixel degradation through varied pixel activation patterns.
3Reliability
If image shifting is performed to prevent pixel degradation, then pixel stress is dispersed, but after-image formation may occur
Solution Approach 1:
The patent assigns different shift routes to different pixel regions based on their specific characteristics and stress accumulation patterns. By tailoring the shift routes to local pixel region requirements and using non-overlapping paths, the system optimizes pixel stress dispersion while minimizing the risk of after-image formation through localized, targeted shifting strategies.
Data Source
AI summary
A method of displaying an image in a display device may include determining the degree of deterioration of pixels included in a display unit based on image data of a current frame image, determining a shift route of the current frame image so as to correspond to the determined degree of deterioration. The first image data is corrected to second image data so that the current frame image is shifted along the shift route.