Integrated Light Blocking and Coating Window for Bendable Displays
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Solution Overview
Problem
Current display devices face challenges in effectively integrating a light blocking pattern and coating window to prevent visual recognition of bending regions and protect against external impacts, while also simplifying the manufacturing process and reducing costs.
Innovation Solution
A display device design that includes a light blocking pattern overlapping the bending region, contacting with the protective layer and coating window, and a method for manufacturing this device by forming a light blocking pattern using a light blocking material and curing it, followed by applying a resin-based coating window directly on the pattern, which simplifies the lamination process and enhances structural protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a light blocking pattern and coating window are integrated to conceal bending regions, then visual recognition of bending regions is prevented, but device complexity increases
Solution Approach 1:
The patent combines the light blocking pattern and coating window into a single integrated structure. The coating window is formed directly on the light blocking pattern, merging two previously separate components (light blocking layer and protective window) into one unified structure, thereby simplifying the manufacturing process while maintaining the functions of both concealing bending regions and providing impact protection
Solution Approach 2:
The integrated coating window structure serves multiple functions simultaneously: it acts as a protective layer against external impacts, maintains the light blocking function to conceal bending regions, and provides structural support. This multi-functional design eliminates the need for separate components, reducing device complexity while achieving multiple objectives
2Object-affected harmful factors
If a light blocking pattern is applied to cover bending regions, then visual recognition of bending regions is prevented, but protection against external impacts is reduced
Solution Approach 1:
The patent employs a composite structure where the coating window (made of transparent protective material) is formed on the light blocking pattern. This composite design combines the light blocking properties of the pattern with the impact resistance of the transparent window material, achieving both visual concealment of bending regions and enhanced protection against external impacts simultaneously
3Strength
If a traditional lamination process is used for the coating window, then protection against external impacts is provided, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent extracts and eliminates the complex multi-step lamination process by directly forming the coating window on the light blocking pattern in a single step. This removes the need for separate lamination operations, adhesive applications, and alignment procedures, thereby simplifying manufacturing while maintaining the protective function against external impacts
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 effectively conceals the bending regions from view, provides enhanced protection against external impacts, and streamlines the manufacturing process, reducing costs and improving reliability.
Implementation Method 1
forming a light blocking pattern using a light blocking material and curing it
Data Source
AI summary
Provided is a display device including a display panel including a non-bending region and a bending region that extends from an end of the non-bending region and that is bent, a protective layer disposed on a lower surface of the display panel, a light blocking pattern overlapping the bending region in a plan view, partially disposed on an upper surface of the display panel, and contacting with a side surface of the protective layer and the bending region, and a coating window disposed directly on the light blocking pattern and including a resin material.