Grooved Protective Film Layout for Flexible Display Flatness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible display panels face stress-related warping issues during the attachment of protective films, which can distort the display units formed on the substrate.
Innovation Solution
A flexible display panel design featuring a protective film with strategically placed grooves that correspond to regions without display units, allowing for stress release during attachment, thereby preventing warping. The grooves are arranged in rows and columns, with dimensions and numbers increasing in the attaching direction, and can be shaped as rectangles, circles, or diamonds, using polyethylene terephthalate material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective film is attached to the flexible substrate, then the substrate is protected, but stress accumulates causing warping of display units
Solution Approach 1:
The protective film is segmented by forming multiple grooves that divide the film into separate regions. This segmentation allows stress to be distributed and released at the groove locations, preventing cumulative stress warping of the display units while maintaining protection in the solid portions of the film.
Solution Approach 2:
The grooves are strategically positioned in regions where display units are not formed, creating local variations in the protective film structure. This local modification allows stress release in non-critical areas while preserving full protective coverage over the display units themselves.
2Stability of the object's composition
If grooves are added to the protective film, then stress is released preventing warping, but the film structure becomes more complex
Solution Approach 1:
The protective film is segmented by forming multiple grooves that divide the film into separate regions. This segmentation allows stress to be distributed and released at the groove locations, preventing cumulative stress warping of the display units while maintaining protection in the solid portions of the film.
3Manufacturing precision
If grooves are positioned in regions without display units, then stress release does not affect display quality, but the protective coverage is reduced
Solution Approach 1:
The grooves are strategically positioned in regions where display units are not formed, creating local variations in the protective film structure. This local modification allows stress release in non-critical areas while preserving full protective coverage over the display units themselves.
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 grooved protective film effectively manages stress during attachment, preventing warping of display units and maintaining the panel's structural integrity and protective functionality.
Implementation Method 1
the protective film includes a plurality of grooves spaced apart from each other, wherein positions of the grooves correspond to regions of the flexible substrate where display units are not formed
Data Source
AI summary
The present disclosure relates to a flexible display panel. The flexible display panel includes a flexible substrate and a protective film located on the flexible substrate. The protective film includes a plurality of grooves spaced apart from each other. The plurality of grooves includes at least one row of grooves. Positions of the grooves correspond to regions of the flexible substrate where display units are not formed.