Photoreactive Layer for Foldable Display Crease Reduction
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Solution Overview
Problem
Foldable display apparatuses suffer from distortion and creases when bent or folded, affecting user experience and visibility.
Innovation Solution
A display apparatus with a variable area and non-variable area, featuring a first adhesive member and a first layer made of different materials, where the first layer includes a photoreactive material that reacts to visible light to reduce distortion and improve durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display apparatus is folded or bent to achieve portability, then the portability is improved, but distortion and creases occur on the folded portion
Solution Approach 1:
The patent applies a first layer with photoreactive material to the display panel before folding. This preliminary action enables the layer to react to light and actively counteract distortion and creases that occur during folding, preventing the harmful effects before they become permanent damage to the display structure.
Solution Approach 2:
The patent utilizes photoreactive material that changes its physical or chemical properties when exposed to light. This parameter change allows the material to dynamically adjust its characteristics in response to light exposure, enabling it to reduce distortion and creases on the folded portion of the display panel.
2Shape
If a photoreactive material layer is added to reduce distortion, then the appearance quality is improved, but the device complexity increases
Solution Approach 1:
The first layer with photoreactive material serves multiple functions simultaneously: it acts as a protective coating on the display panel and also functions as an active component that reduces distortion and creases through light reaction. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent employs composite material structure where the first layer is made of photoreactive material that combines protective properties with active distortion-reducing properties. This composite approach integrates multiple functions into a single material system, avoiding the need for separate layers for protection and distortion reduction.
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 photoreactive material in the first layer helps alleviate distortion and creases in the folded portion, enhancing the display apparatus's performance and reliability by using light reactions to restore the original shape, thus improving user convenience and visibility.
Implementation Method 1
a first layer disposed on the display panel and a first adhesive member, a material of the first layer being different from a material of the first adhesive member. The first layer may include a photoreactive material.
Data Source
AI summary
The display apparatus may include a display panel including a variable area and a non-variable area, a first adhesive member disposed on the display panel, and a first layer disposed on the first adhesive member, a material of the first layer being different from a material of the first adhesive member. The first layer may include a photoreactive material.