Flexible Display Panel Groove Elastic Layer Recovery
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Solution Overview
Problem
Flexible display panels face challenges in recovery ability and support after being bent to 180 degrees, with existing solutions providing inadequate recovery and support, leading to sagging and poor structural integrity.
Innovation Solution
The implementation of a flexible display panel with successive groove structures in the bending region, filled with hard particles and an elastic layer made of organic rubber or silica gel, which enhances recovery ability and support by providing resilient force and structural support when flat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If material is added to assist the flexible display panel to recover, then recovery ability is improved, but device complexity increases
Solution Approach 1:
The support layer is segmented into multiple regions with different structures: a first region with through holes and a second region without through holes. This segmentation allows different portions of the bending region to have different recovery characteristics, improving overall recovery ability while maintaining manageable device complexity through localized functional differentiation.
Solution Approach 2:
The support layer exhibits local quality variations through the presence of through holes in the first region and their absence in the second region. This local structural differentiation provides enhanced recovery ability where needed (first region) while maintaining structural integrity elsewhere (second region), resolving the contradiction between recovery ability and device complexity.
2Reliability
If material is added to improve support ability, then support ability is improved, but weight increases
Solution Approach 1:
The support layer incorporates through holes in the first region, creating a porous structure that provides mechanical support and recovery ability while minimizing material usage. This porous design improves support ability without significantly increasing weight, as the holes reduce the amount of material needed while maintaining structural functionality.
Solution Approach 2:
The flexible display panel uses a composite structure combining the support layer with through holes, the elastic layer, and various functional layers (substrate, barrier layer, thin film transistor layer, etc.). This composite approach optimizes the weight-to-strength ratio by strategically placing materials where they provide maximum support while minimizing overall weight.
3Adaptability or versatility
If the flexible display panel is bent to 180 degrees, then flexibility is demonstrated, but recovery time increases
Solution Approach 1:
The support layer is designed with dynamic characteristics through the elastic layer and the differentiated region structure. The first region with through holes provides enhanced elasticity and faster recovery compared to a uniform structure, allowing the panel to dynamically adapt to bending and quickly return to its original state, reducing recovery time while maintaining flexibility.
Solution Approach 2:
The support layer's structural parameters are changed by introducing through holes in specific regions, which modifies the mechanical properties (elasticity, recovery speed) of the bending region. This parameter change enables faster recovery after bending while preserving the flexibility needed for 180-degree bending.
4Adaptability or versatility
If the bending region has poor support ability, then flexibility is maintained, but structural integrity deteriorates
Solution Approach 1:
The support layer is segmented into a first region with through holes and a second region without through holes. This segmentation provides localized support enhancement in the second region to maintain structural integrity, while the first region maintains flexibility. The differentiated structure resolves the contradiction by providing support exactly where needed without compromising overall flexibility.
Solution Approach 2:
The support layer exhibits local quality differentiation with through holes in the first region and solid structure in the second region. This local variation provides enhanced structural integrity in the second region while maintaining flexibility in the first region, resolving the contradiction between flexibility and structural integrity.
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 solution significantly improves the recovery ability and support of the flexible display panel, ensuring it returns to its original state effectively after bending and maintains structural integrity when flat, addressing the limitations of existing technologies.
Implementation Method 1
an elastic layer is disposed in the groove. Material of the elastic layer is organic rubber or silica gel having stretchability and recovery ability
Data Source
AI summary
A flexible display panel is provided, including a display region and a bending region; a support layer; a substrate disposed on the support layer; a barrier layer disposed on a side of the substrate away from the support layer; a thin film transistor layer disposed on a side of the barrier layer away from the substrate; an organic light emitting layer disposed on a side of the thin film transistor layer away from the barrier layer; and an encapsulation layer disposed on the thin film transistor layer and the organic light emitting layer. In addition, in the bending region, the support layer has at least one groove, and an elastic layer is disposed in the groove. The present disclosure solves the problem of poor recovery ability and poor support ability of the bending region of the display panel.