Flexible Display Panel With Segmented Substrate Penetrating Portion
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Solution Overview
Problem
Existing display panels lack the necessary flexibility and reliability to be effectively bent, rolled, or folded, which limits their application in modern mobile electronic devices.
Innovation Solution
A display panel design that includes a substrate with a penetrating portion, where the substrate has a first region and a second region separated by the penetrating portion, and a display element arranged on the substrate with inclined surfaces defining the penetrating portion, enhancing flexibility and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional display panel structure is used, then manufacturing and assembly are straightforward, but the display panel lacks flexibility and cannot be bent, rolled, or folded
Solution Approach 1:
The substrate is divided into two distinct regions: a first region with a first thickness and a second region with a second thickness less than the first thickness. This segmentation allows different portions of the substrate to serve different functions - the thicker first region provides structural support while the thinner second region enables flexibility and bending capability.
Solution Approach 2:
The substrate exhibits non-uniform thickness distribution, with the first region having greater thickness for rigidity and the second region having reduced thickness for flexibility. This local variation in physical properties allows the display panel to maintain structural integrity in some areas while achieving bendability in others.
2Adaptability or versatility
If the substrate thickness is reduced to increase flexibility, then the display panel can be bent more easily, but the reliability and structural integrity are compromised
Solution Approach 1:
By segmenting the substrate into regions of different thicknesses, the invention maintains a thicker first region that preserves structural integrity and reliability, while the thinner second region provides the necessary flexibility for bending and folding operations.
Solution Approach 2:
The substrate is designed with locally varying thickness properties - the first region maintains sufficient thickness for structural support and reliability, while the second region has reduced thickness specifically where flexibility is required, thus resolving the contradiction between overall structural integrity and localized bendability.
3Adaptability or versatility
If a uniform substrate structure is used, then manufacturing is simpler, but the display panel cannot achieve the desired bending and folding capabilities
Solution Approach 1:
The substrate manufacturing process is segmented into forming a first region with initial thickness and a second region with reduced thickness. This can be achieved through selective removal of material or differential deposition techniques, allowing standard manufacturing processes to be adapted with additional steps for creating the thickness variation.
Solution Approach 2:
The manufacturing process incorporates local variation in substrate thickness, where the first region is maintained at a standard thickness for structural purposes and the second region is selectively thinned or formed with reduced thickness to enable bending and folding capabilities.
Data Source
AI summary
A display panel includes a substrate including a first and a second region, which are spaced apart from each other with a penetrating portion provided therebetween, and a display element arranged on the substrate and including a first display element overlapping the first region and a second display element overlapping the second region, wherein a first side surface of the substrate that corresponds to an edge of the first region, and a second side surface of the substrate that corresponds to an edge of the second region, define at least portions of the penetrating portion, and an interval between the first and second side surfaces from an upper surface of the substrate, the upper surface facing the display element, is less than an interval between the first and second side surfaces from a lower surface of the substrate that does not face the display element.