Stretchable Display Panel with Compensating Pixels
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Solution Overview
Problem
Stretchable display panels experience a reduction in display resolution when stretched, leading to a decrease in user experience due to increased distances between pixel units, which affects the display effect and consistency before and after stretching.
Innovation Solution
A stretchable display panel design that includes a plurality of pixel units, compensating pixels, and a stretch detecting member capable of generating an electrical signal when stretched, with a control unit that determines stretch information and supplies a compensating voltage to the compensating pixels based on the stretch degree and light-emitting brightness to maintain consistent display resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is stretched to enable foldability and wearability, then the adaptability and form flexibility are improved, but the display resolution and pixel density deteriorate due to increased distances between pixel units
Solution Approach 1:
The display panel is segmented into pixel units with compensating pixels inserted between them. When stretched, the compensating pixels become visible and emit light to fill the gaps, maintaining display resolution. This segmentation allows the display to function at different resolutions depending on the stretched state.
Solution Approach 2:
The display panel employs a stretch detecting member that dynamically detects the stretching state and triggers compensating pixels to activate only when needed. This dynamic response allows the display to adapt its resolution in real-time based on the physical state of the panel, maintaining image quality during stretching while preserving high resolution when unstretched.
2Manufacturing precision
If compensating pixels are added to maintain resolution after stretching, then the display quality is improved, but the device complexity increases due to additional components and control mechanisms
Solution Approach 1:
The compensating pixels are merged with the existing pixel unit structure, sharing common electrodes and control circuits. The stretch detecting member is integrated into the display layer structure, utilizing existing transparent conductive oxide layers. This merging reduces the need for separate control systems and minimizes structural complexity.
Solution Approach 2:
The compensating pixels serve multiple functions: they act as stretch sensors through their electrical connection to the stretch detecting member, and as additional light-emitting elements to maintain display resolution. The first detecting lines serve both as signal transmission paths and as part of the stretch detection mechanism, reducing the need for separate sensing components.
3Stability of the object's composition
If the stretch detecting member and compensating pixel control system are implemented, then the display consistency is improved, but the energy consumption increases due to continuous monitoring and compensating pixel activation
Solution Approach 1:
The stretch detecting member operates on a periodic detection cycle, monitoring for changes in stretching state rather than continuous monitoring. The compensating pixels are activated only when stretching is detected, remaining inactive during normal display operation. This periodic action significantly reduces energy consumption compared to continuous monitoring and activation systems.
Solution Approach 2:
The stretch detecting member utilizes the electrical properties of existing transparent conductive oxide layers in the display structure, rather than requiring separate active sensing components. The system self-regulates by automatically activating compensating pixels when stretching is detected, eliminating the need for external control systems and reducing overall energy requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively compensates for the reduced resolution after stretching, ensuring a consistent display effect and improved user experience by adjusting the light-emitting brightness of compensating pixels, thereby maintaining display quality before and after stretching.
Implementation Method 1
a stretch detecting member, corresponding to the plurality of compensating pixels and including a material that is capable of generating an electrical detecting signal when being stretched
Data Source
AI summary
A stretchable display panel and a display method thereof, and a display device are provided. The stretchable display panel includes pixel units arranged in an array, compensating pixels located at a gap between the plurality of pixel units, a stretch detecting member corresponding to the compensating pixels and a control unit respectively and electrically connected with the stretch detecting member and the compensating pixels. The stretch detecting member includes a material that is capable of generating an electrical detecting signal when being stretched, so that the stretch detecting member is capable of generating a detecting signal when being stretched; the control unit is configured to determine stretch information of the stretchable display panel according to the detecting signal generated when the stretch detecting member is stretched, and supply a compensating voltage to the compensating pixel according to the stretch information.