Foldable Display Substrate with Metal Thin Film and Insulating Layer
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Solution Overview
Problem
Transformable display apparatuses face challenges in maintaining performance and preventing damage due to irregular curling, wrapping, or distortion when folded, which affects reliability and safety.
Innovation Solution
A foldable display apparatus is designed with a substrate including a metal thin film and an insulating layer, an organic light-emitting unit, and a thin film encapsulating layer. The apparatus includes sensors to detect the folding state and control the display accordingly, minimizing distortion and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible materials such as plastics are used in the construction of a transformable display apparatus, then the display can be folded and transformed into various shapes, but defects such as irregular curl, wrapping phenomenon at the display edges, or other distortion may occur
Solution Approach 1:
The display apparatus is divided into multiple functional layers including a flexible substrate, display layer, and protective layers. Each layer is independently designed and manufactured with specific properties, allowing the overall structure to be flexible while maintaining display performance and preventing distortion during folding
Solution Approach 2:
The patent employs composite material structures combining flexible substrates with display elements and protective coatings. This composite approach enables the display to achieve both flexibility for transformation and structural integrity to prevent curling and distortion when folded
2Volume of moving object
If the display apparatus is folded, then it can be made smaller for ease of transport and storage, but certain properties of the display may be damaged or impaired
Solution Approach 1:
The display apparatus utilizes flexible thin film structures for the substrate and protective layers. These thin films allow the display to be folded into compact forms for transport and storage while maintaining sufficient mechanical strength to protect display properties from damage during folding operations
3Reliability
If sensors are added to detect folding state, then reliability and safety are increased, but device complexity increases
Solution Approach 1:
The sensor components are integrated into existing structural elements of the display apparatus, allowing these elements to serve multiple functions: providing structural support and simultaneously detecting folding states. This multi-functionality approach increases reliability through sensing capabilities while minimizing additional structural complexity
Data Source
AI summary
A foldable display apparatus, a method of manufacturing the same, and a controlling method of the same are disclosed. The foldable display apparatus includes a substrate including a metal thin film and an insulating layer provided on the metal thin film, an organic light-emitting unit formed on the substrate and emitting light in an direction away from the substrate, and a thin film encapsulating layer for encapsulating the organic light-emitting unit. The foldable display apparatus may be folded in a direction such that the metal thin film is exposed.