Embedded Touch Layer in Stretchable Display Module
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Solution Overview
Problem
Conventional flexible touch display products, such as Micro LED flexible displays, have a large overall thickness and high manufacturing costs due to the use of external touch display panels, which limits their application range.
Innovation Solution
A stretchable display module with a touch layer embedded in the display panel, featuring island regions, bridge connection regions, and aperture regions, where touch modules are integrated with pixel islands and connected through connection bridges, allowing for a compact and cost-effective design while maintaining flexibility and touch functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external touch display panel is used to realize touch function, then touch functionality is achieved, but the overall thickness increases and cost increases
Solution Approach 1:
The patent merges the touch layer with the display panel by embedding the touch layer between the substrate and the pixel layer, integrating two previously separate components (display panel and touch panel) into a single unified structure, thereby reducing overall thickness while maintaining both display and touch functions
Solution Approach 2:
The touch layer is nested within the display panel structure, specifically positioned between the substrate and the pixel layer, allowing the touch functionality to be contained within the display panel's internal structure rather than adding an external layer
2Reliability
If an external touch display panel is used to realize touch function, then touch functionality is achieved, but manufacturing cost increases
Solution Approach 1:
By combining the touch layer and display panel into a single integrated structure, the patent reduces the number of separate components that need to be manufactured and assembled, thereby lowering manufacturing costs while maintaining touch functionality
Solution Approach 2:
The integrated structure serves multiple functions simultaneously - the same layered structure provides both display functionality (through the pixel layer) and touch functionality (through the embedded touch layer), eliminating the need for separate dedicated touch panel manufacturing
3Stability of the object's composition
If traditional rigid connection structures are used between pixel islands, then structural stability is maintained, but flexibility and stretchability are reduced
Solution Approach 1:
The connection bridges are designed with curved or meandering geometries rather than straight rigid lines, allowing them to deform elastically during stretching while maintaining structural integrity and electrical connectivity between pixel islands
Solution Approach 2:
The patent employs flexible connection bridges made from materials and structures that can bend and stretch, replacing rigid connection structures with flexible thin-film conductive paths that maintain electrical connectivity during deformation
Data Source
AI summary
An embodiment of the present application discloses a stretchable display module and a stretchable display device. The stretchable display module comprises a display panel and a touch layer embedded in the display panel. The display panel includes island regions, bridge connection regions, and aperture regions. A pixel island is disposed in each of the island regions. Each of the connection bridges is connected to adjacent two of the pixel islands. The touch layer comprises touch modules. One touch module is disposed in each of the pixel islands, adjacent two of at least some of the touch modules are connected to each other through the connection bridge.