Transparent Stretchable Display With Local Pixel Drivers
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Solution Overview
Problem
Current transparent displays, such as LCD and OLED, suffer from limited flexibility, slow switching circuits due to high resistivity, and low resolution in stretchable electronics, making them unsuitable for video applications and prone to wear and tear from frequent bending.
Innovation Solution
A deformable display system with a flexible circuit board, embedded LEDs, and local pixel drivers, combined with stretchable conducting paths and selective removal of non-pixel areas, allows for high-resolution, real-time deformation without losing transparency, and incorporates additional functionalities like photovoltaic cells and sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If ITO layers are used for transparency, then optical transparency is achieved, but switching speed becomes slow due to high resistivity
Solution Approach 1:
The patent removes the ITO layer from the display structure entirely, replacing it with an organic transparent conductor. This extraction of the problematic component eliminates the resistivity issue while maintaining transparency, directly resolving the contradiction between optical transparency and switching speed.
Solution Approach 2:
The patent changes the material parameter from inorganic ITO to organic transparent conductor, fundamentally altering the electrical properties while preserving optical properties. This parameter change enables both high transparency and fast switching by using materials with inherently lower resistivity.
2Adaptability or versatility
If flexible displays use multiple small rigid bodies connected together, then flexibility is maintained, but bending is limited and wear increases
Solution Approach 1:
The patent employs a continuous flexible substrate (such as thin glass or polymer film) instead of assembling multiple rigid bodies. This flexible shell approach allows unlimited bending and deformation without creating wear points at connection joints, directly resolving the contradiction between flexibility and reliability.
3Adaptability or versatility
If stretchable electronics use serpentine circuits, then stretching functionality is achieved, but resolution decreases due to increased material usage
Solution Approach 1:
The patent uses a continuous flexible substrate that can stretch uniformly without requiring serpentine circuit patterns. This approach eliminates the need for extra material in meander geometries, allowing high-resolution pixel arrangements even when the display is stretched, thus resolving the contradiction between stretchability and resolution.
4Adaptability or versatility
If frequent bending is performed, then flexibility is demonstrated, but wear and faulty connections increase
Solution Approach 1:
The patent uses a continuous flexible substrate without rigid connection joints, eliminating wear points that would fail under repeated bending. This design allows the display to maintain its service life even with frequent flexing and deformation, resolving the contradiction between flexibility and durability.
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 system provides a lightweight, high-resolution, and robust display capable of real-time bending and stretching, with improved conductivity and reduced wear, offering enhanced functionality and visual depth through dynamic color calibration.
Implementation Method 1
The pixels are for example light-emitting elements, such as light-emitting diodes (LEDs)
Implementation Method 2
the functional nodes are for example photovoltaic (PV) cells
Data Source
AI summary
A deformable display is provided, particularly a flexible, stretchable, and transparent deformable display based on light-emitting elements such as for example light-emitting diodes (LEDs). Methods of use and applications of such deformable display, including systems and methods making use of such deformable display. In addition a flexible, stretchable and transparent display is provided being deformable in real-time while maintaining deformability.