Flexible Array Substrate Pixel Island Segmentation for Stretchable Displays
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Solution Overview
Problem
Existing flexible display panels experience a decrease in resolution and an increase in image graininess when stretched, leading to a deterioration in user experience.
Innovation Solution
A flexible array substrate is designed with pixel island areas, flexible areas, and isolation structures, where each flexible area includes an elastic packaging part with a light reflective material body for pixel compensation, improving resolution and stretchability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display panel is stretched to increase flexibility, then stretchability is improved, but resolution decreases and image graininess increases
Solution Approach 1:
The display panel is divided into pixel island areas and flexible areas, with isolation structures separating them. This segmentation allows the pixel areas to maintain fixed positions while the flexible areas can stretch independently, preventing pixel deformation and maintaining resolution during stretching.
Solution Approach 2:
Different regions of the substrate have different properties: pixel island areas are rigid to maintain pixel structure, while flexible areas between pixels are elastic to allow stretching. The isolation structures have specific mechanical properties that enable them to bridge these different regions, allowing local flexibility without compromising overall resolution.
2Adaptability or versatility
If distances between pixels are increased to accommodate stretching, then stretchability is improved, but resolution decreases
Solution Approach 1:
The substrate is segmented into pixel island areas where pixels are densely packed, and flexible areas where no pixels exist. This segmentation allows the flexible areas to expand during stretching without affecting the pixel density in the pixel island areas, thus maintaining resolution while enabling stretchability.
Solution Approach 2:
The flexible areas act as intermediary regions between pixel island areas, absorbing the mechanical stress of stretching. These intermediary flexible regions allow the pixel areas to remain relatively fixed in position and density, preventing pixel distortion while enabling overall panel expansion.
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 flexible array substrate achieves improved resolution and display effects during stretching, enhancing user experience while increasing the substrate's stretchability.
Implementation Method 1
Each of the plurality of flexible areas includes an elastic packaging part. The elastic packaging part is disposed in the groove and includes a light reflective material body. The light reflective material body is configured for pixel compensation.
Data Source
AI summary
A flexible array substrate and a flexible display panel are provided. The flexible array substrate includes a plurality of pixel island areas sequentially arranged, a plurality of flexible areas, and a plurality of isolation structures. Each of the plurality of flexible areas is disposed between adjacent two of the plurality of pixel island areas. Each of the plurality of isolation structures covers a corresponding one of the plurality of flexible areas, edges of each of the plurality of isolation structures extend out of the corresponding one of the plurality of flexible areas, and an upper surface of each of the plurality of isolation structures defines a groove. Each of the plurality of flexible areas includes an elastic packaging part disposed in the groove and including a light reflective material body. The light reflective material body is configured for pixel compensation.