Flexible Display Panel Expansion Correction via Dynamic Signal Adjustment
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Solution Overview
Problem
Flexible display devices face image distortion when expanded due to pixel expansion, leading to degradation in display quality, as existing technologies fail to effectively correct image quality based on the degree of panel expansion.
Innovation Solution
A display device with an expansion detecting unit, control unit, scan drive unit, and data drive unit that generates and applies control signals to adjust image signals and timing based on the degree of panel expansion, preventing image distortion by scaling or increasing resolution accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display panel is expanded by external force, then the display area is increased, but image distortion occurs and display quality degrades
Solution Approach 1:
The patent applies dynamics by making the display system adaptable to changing physical conditions. The expansion detecting unit continuously monitors the panel state, and the control unit dynamically adjusts image signals based on detected expansion degree. This allows the display to maintain image quality across different physical states (expanded vs. non-expanded), transforming a static display system into a dynamic one that responds to environmental changes.
Solution Approach 2:
The patent implements parameter changes by modifying image signal parameters (resolution, scaling, timing) based on the physical expansion state of the panel. When expansion is detected, the control unit changes the display parameters to compensate for pixel expansion effects. This parameter adaptation resolves the contradiction by allowing the same physical panel to maintain optimal display quality across different area states.
2Length of moving object
If the display panel is expanded, then the physical size is increased, but pixel expansion causes image distortion
Solution Approach 1:
The patent implements feedback by using the expansion detecting unit to continuously monitor the panel's physical state and feeding this information back to the control unit. The control unit then adjusts image signals based on this feedback. This closed-loop feedback mechanism allows the system to automatically compensate for pixel expansion effects, maintaining image clarity regardless of panel size changes.
Solution Approach 2:
The patent applies preliminary anti-action by preemptively adjusting image signals before display distortion becomes apparent. The expansion detecting unit identifies panel expansion early, and the control unit pre-adjusts resolution and scaling parameters to counteract the upcoming distortion. This proactive approach prevents image quality degradation rather than correcting it after the fact.
3Ease of operation
If a flexible display device is made bendable or foldable, then user interaction is improved, but detection of expansion degree becomes more difficult
Solution Approach 1:
The patent applies self-service by enabling the display device to autonomously detect its own expansion state and automatically adjust its image signals accordingly. The expansion detecting unit is integrated into the display system itself, allowing it to self-monitor and self-correct without external intervention. This self-service capability simplifies the overall system while maintaining ease of operation.
Data Source
AI summary
A display device including a display panel including scan lines, data lines, and first pixels disposed thereon, an expansion detecting unit configured to determine expansion of the display panel, a control unit configured to generate a control signal to correct an image signal depending on a degree of expansion when the display panel is determined to be expanded, a scan driver connected to the scan lines and configured to apply the control signal to the scan lines connected to the corresponding pixels depending on the control signal input from the control unit, and a data driver connected to the data lines and configured to apply the control signal to the data lines connected to the corresponding pixels depending on the control signal input from the control unit.