Silane-Modified Polymer for Flexible Display Substrates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current plastic substrates for flexible displays lack the necessary heat resistance, transparency, and flexibility, and composite materials with inorganic additives face issues with dispersion and performance degradation.
Innovation Solution
A polymer with a specific structure represented by Chemical Formula 1, incorporating a silane compound and an organic silicate structure, is developed to improve thermal and optical properties, reducing the coefficient of thermal expansion and enhancing light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If inorganic additives are added to polymer to improve thermal properties, then heat resistance is improved, but dispersion is insufficient and performance deteriorates
Solution Approach 1:
The patent uses silane compounds as intermediary materials that bridge the organic polymer matrix and inorganic fillers. The silane-modified polymer contains both organic functional groups for polymer chain formation and inorganic silane groups for bonding with inorganic additives, acting as a mediator that improves interfacial adhesion and dispersion between the polymer and inorganic fillers, thereby resolving the dispersion problem while maintaining heat resistance improvement
Solution Approach 2:
The patent creates a composite material system consisting of silane-modified polymer, inorganic fillers, and coupling agents. This composite structure combines the thermal stability of inorganic materials with the processability and flexibility of organic polymers, while the silane modification ensures proper integration and dispersion of components, achieving both improved heat resistance and composition stability
2Temperature
If inorganic additives are added to polymer to improve thermal properties, then heat resistance is improved, but optical transmittance deteriorates
Solution Approach 1:
The patent applies local quality by controlling the distribution and size of inorganic fillers within the polymer matrix. By using silane modification to improve dispersion, the inorganic additives are evenly distributed at the molecular level rather than forming large aggregates, which minimizes light scattering and maintains optical transmittance while providing localized thermal stability enhancement
Solution Approach 2:
The patent utilizes porous inorganic filler materials with controlled pore structures that have low refractive index differences from the polymer matrix. These porous structures reduce light scattering while maintaining high surface area for thermal stability, allowing simultaneous improvement of heat resistance and optical transmittance
3Temperature
If glass substrate is used for display device, then transparency and heat resistance are improved, but weight and flexibility worsen
Solution Approach 1:
The patent changes the fundamental material parameter from inorganic glass to organic silane-modified polymer, which fundamentally alters the density and mechanical properties. The silane modification provides cross-linked structures that simulate glass-like thermal stability while maintaining the inherent low density and flexibility of organic polymers, achieving parameter optimization across multiple dimensions
Solution Approach 2:
The patent employs thin film structures of silane-modified polymer that can be deposited as flexible coatings or membranes. These thin films provide sufficient thermal stability for display applications while being inherently lightweight and flexible, replacing the thick, rigid glass substrates traditionally used in displays
Data Source
AI summary
A polymer including a structure represented by the following Chemical Formula 1, and a composition and a film including the same are provided.In the above Chemical Formula 1, each substituent is as defined in the detailed description.