Flexible Display Calibration via Pixel Region Substitution
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Solution Overview
Problem
Flexible display screens attached to mobile devices often experience fitting deviations when bent, leading to poor image centering and user experience due to existing calibration limitations, resulting in ±0.3 to 0.5 mm misalignment and shifted images on curved surfaces.
Innovation Solution
A calibration method and apparatus that utilize a reserved second pixel region with aligning mark lines to detect shifts in the first pixel region, generating correction instructions to activate or deactivate pixel rows, ensuring accurate alignment and maintaining screen resolution by substituting shifted pixel rows with dormant ones from the second region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible display screens are bent and attached to mobile devices, then the display effect and user experience are improved, but fitting deviations occur leading to image misalignment and poor centering
Solution Approach 1:
The patent applies preliminary action by pre-reserving a second pixel region adjacent to the first pixel region before the bending process. This reserved region serves as a buffer zone that can be activated to compensate for alignment deviations caused by bending, thereby maintaining image centering without requiring post-assembly adjustments
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting which pixel regions are activated based on detected alignment deviations. When bending causes the display content to shift, the system changes the activation state of pixels in the reserved second region to compensate for the deviation, thereby maintaining proper image centering
2Ease of manufacture
If existing calibration methods are used, then the manufacturing process is simple, but alignment precision is limited to ±0.3 to 0.5 mm resulting in shifted images
Solution Approach 1:
The patent applies copying by creating a virtual reference system through mark lines that are captured via imaging. Instead of relying on physical measurement tools, the system creates a digital copy of the alignment relationship between the display screen and the middle frame, enabling precise detection and calibration through image processing
3Adaptability or versatility
If the display screen is bent to fit curved surfaces, then the adaptability is improved, but the alignment between display content and fixing component deteriorates
Solution Approach 1:
The patent implements feedback by capturing images of mark lines on the bent display screen and automatically detecting alignment deviations. The system uses this detected information to generate correction instructions that adjust pixel activation in the reserved region, creating a closed-loop control system that maintains alignment stability despite bending
Data Source
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AI summary
A display apparatus includes a fixing component and a display screen having a first pixel region and a second pixel region. An aligning mark line is provided at a joint of the first and second pixel regions. A method for calibrating a display region of the display apparatus includes: capturing (101) a connecting part of the display screen and the fixing component to obtain a first image; determining (102) whether the aligning mark line is shifted with respect to the fixing component; and generating (103) a correction instruction when the aligning mark line is shifted with respect to the fixing component, wherein the correction instruction includes activating a pixel row of the second pixel region where the aligning mark line is shifted with respect to the fixing component to substitute for a pixel row of the first pixel region shifted to a connecting region of the fixing component.