Flexible Display Cover Window with Dummy Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible display devices face challenges in balancing flexibility, impact resistance, and optical characteristics, particularly when a cover window is designed to be slim and flexible, leading to deteriorated impact resistance and visible optical differences between bent and flat areas.
Innovation Solution
A cover window design for flexible display devices, featuring a base film with grooves and soft portions in the bendable area, and dummy patterns with varying lengths and depths in the flat areas, to enhance flexibility, impact resistance, and optical uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cover window is made to be slim to increase flexibility, then flexibility is improved, but impact resistance is deteriorated
Solution Approach 1:
The cover window employs a composite structure combining a glass film with a flexible film layer. The glass film provides impact resistance while the flexible film layer enhances flexibility, allowing the cover window to achieve both slim profile and durability simultaneously.
Solution Approach 2:
The patent introduces patterns and dummy patterns at specific locations (bendable area vs. flat area) with different structural characteristics. The patterns in the bendable area have different properties than those in flat areas, optimizing local flexibility while maintaining overall structural integrity and optical consistency.
2Adaptability or versatility
If patterns are formed in the bendable area to enhance flexibility, then flexibility is improved, but optical characteristics are deteriorated
Solution Approach 1:
The patent applies different patterns to different areas: the bendable area contains patterns that enhance flexibility, while the flat area contains dummy patterns with varying lengths that maintain optical consistency. This localized differentiation allows flexibility enhancement without compromising overall optical characteristics.
Solution Approach 2:
The dummy patterns in the flat area are designed to visually match or blend with the patterns in the bendable area, creating optical consistency across the entire cover window surface. The dummy patterns copy the aesthetic appearance while serving a different functional purpose in maintaining optical uniformity.
Data Source
AI summary
A display device includes: a display panel; and a cover window on the display panel. The display panel and the cover window include a flat area, and a bendable area adjacent to the flat area. The cover window includes: patterns at the bendable area along a first direction; and dummy patterns at the flat area along the first direction, the dummy patterns including a first dummy pattern, and a second dummy pattern adjacent to the first dummy pattern. A length of the first dummy pattern is different from a length of the second dummy pattern.