Hardness-Enhancing Layer for Flexible Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible display apparatuses, particularly those made of polymer materials, suffer from low surface hardness, making them prone to scratches and damage, which compromises their mechanical strength and durability.
Innovation Solution
A flexible display apparatus with a hardness-enhancing layer comprising an inorganic material sublayer and a composite material sublayer, where the composite sublayer includes a polymer matrix and dispersed inorganic material, such as silicon-based materials, to enhance the surface hardness and mechanical strength, with optional openings to reduce mechanical stress during bending or folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a flexible display panel is made of polymer material to achieve flexibility and light weight, then the display apparatus becomes bendable and lighter, but the surface hardness is reduced making it prone to scratches and damage
Solution Approach 1:
The patent applies composite materials by combining polymer material (providing flexibility) with inorganic material particles (providing hardness). The hardness-enhancing layer comprises a polymer matrix with dispersed inorganic material particles, creating a composite structure that simultaneously achieves flexibility and scratch resistance. This resolves the contradiction by integrating two material types with complementary properties into a single functional layer.
2Strength
If the surface hardness is increased by adding inorganic material to enhance durability, then scratch resistance is improved, but the flexibility and bendability of the display panel are reduced
Solution Approach 1:
The patent applies local quality by creating a hardness-enhancing layer with specific local properties (increased hardness through inorganic particles) on the surface of the flexible display panel, while the bulk polymer substrate maintains its flexibility. The inorganic particles are dispersed locally in the polymer matrix at the surface level, providing hardness where needed without compromising the overall flexibility of the display panel.
3Strength
If a hardness-enhancing layer is added to increase surface hardness, then mechanical strength is improved, but the device complexity increases
Solution Approach 1:
The patent merges the hardness-enhancing layer with the existing flexible display panel structure by forming it as an integrated layer on the panel surface. The layer combines polymer and inorganic materials in a single composite structure that is deposited or formed as one unit, rather than adding multiple separate layers. This integration approach enhances mechanical strength while minimizing the increase in device complexity.
Data Source
AI summary
The present application provides a flexible display apparatus. The flexible display apparatus includes a flexible display panel; and a hardness-enhancing layer on the flexible display panel, the hardness-enhancing layer for enhancing surface hardness and mechanical strength of the flexible display panel. The hardness-enhancing layer includes an inorganic material sublayer and a composite material sublayer, the composite material sublayer including a polymer matrix and an inorganic material dispersed in the polymer matrix.