Pixel Shifting Control for OLED Burn-In Prevention
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Solution Overview
Problem
Current pixel shifting methods for display screens can cause damage to organic light-emitting diodes and result in image retention or burn-in, while also being inconvenient for users, especially when using a stylus for delicate work.
Innovation Solution
A pixel shifting method and control method for display screens that involve shifting pixels on a central point of an image along a predetermined path, changing the color attributes of pixels after each cycle, and automatically initiating pixel shifting when no touch signal is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pixel shifting is performed to prevent image retention and burn-in, then the resilience against image retention is improved, but the organic light-emitting diode may still suffer damage and users experience inconvenience during stylus operations
Solution Approach 1:
The patent implements dynamic pixel shifting where the shifting path and color attributes change based on real-time touch detection. When no touch is detected, pixels shift along a predetermined path with color changes; when touch is detected, shifting pauses to avoid interference with stylus operations. This dynamic adaptation resolves the contradiction between preventing image retention and ensuring user convenience.
Solution Approach 2:
The system continuously monitors touch signals from the display screen and adjusts pixel shifting behavior accordingly. The processor detects touch signals and modifies the pixel shifting operation in real-time, creating a feedback loop that balances image retention prevention with user operation convenience, especially during delicate stylus work.
2Reliability
If pixel shifting is performed continuously to prevent luminous efficiency decline, then the luminous efficiency is maintained, but the organic light-emitting diode suffers wear and tear
Solution Approach 1:
The patent implements periodic pixel shifting where pixels change color attributes after a predetermined number of shifts or time intervals. This periodic action distributes the stress across different pixels and time periods, preventing continuous operation of the same pixels, thereby maintaining luminous efficiency while extending the service life of the organic light-emitting diodes.
Solution Approach 2:
The system performs preliminary pixel shifting operations during periods when the display is not being actively used for delicate work. By anticipating user needs and performing shifting operations in advance during idle periods, the system maintains luminous efficiency without interfering with active stylus operations, thereby protecting the organic light-emitting diodes from excessive wear.
3Reliability
If pixel shifting is performed without touch detection to prevent image retention, then the resilience against burn-in is improved, but user operations with stylus are interfered with
Solution Approach 1:
The system continuously monitors touch signals from the display screen and adjusts pixel shifting behavior accordingly. The processor detects touch signals and modifies the pixel shifting operation in real-time, creating a feedback loop that balances image retention prevention with user operation convenience, especially during delicate stylus work.
Solution Approach 2:
The patent implements dynamic pixel shifting where the shifting path and color attributes change based on real-time touch detection. When no touch is detected, pixels shift along a predetermined path with color changes; when touch is detected, shifting pauses to avoid interference with stylus operations. This dynamic adaptation resolves the contradiction between preventing image retention and ensuring user convenience.
Data Source
AI summary
A pixel shifting method and a control method of a display screen are provided. The pixel shifting method is adapted for the display screen, and the display screen includes at least one processor to perform the following steps. When the display screen displays a picture, pixel shifting is performed on a central point of the picture according to a shifting path. A plurality of pixels on the shifting path is allowed to be sequentially displayed on the display screen according to a plurality of different color attributes. The color attribute of each of the plurality of pixels is changed after a cycle of the pixel shifting ends.