Display Device Multi-Layer Line Arrangement for Foldable Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices face challenges in increasing the number of data link lines or touch lines in bendable or foldable areas while preventing them from cracking, which limits high-resolution image display and touch sensitivity.
Innovation Solution
The display device alternately arranges data link lines and touch lines in different layers in the bendable or foldable areas, forming a zigzag pattern to minimize damage and allow for a higher density of lines without cracking, and uses metal data link lines that are connected to touch electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the number of data link lines or touch lines is increased to achieve high resolution, then image resolution and touch sensitivity are improved, but the lines are more likely to crack in bendable or foldable areas
Solution Approach 1:
The patent transitions from a single-layer line arrangement to a multi-layer configuration where data link lines and touch lines are disposed in different layers. This dimensional separation allows both line types to coexist without interfering with each other's mechanical performance in bendable areas, enabling high resolution while maintaining line integrity through the layering approach.
Solution Approach 2:
The patent segments the conductive lines into different functional groups (data link lines and touch lines) and places them in separate layers. This segmentation allows each layer to be optimized independently for its specific function while reducing the cumulative stress on any single line type in the bendable area, thereby preventing cracking.
2Device complexity
If data link lines and touch lines are disposed in the same layer in a non-display area, then the structure is simpler, but the number of lines is limited due to space constraints
Solution Approach 1:
The patent utilizes the vertical dimension by disposing data link lines and touch lines in different layers rather than arranging them side-by-side in the same plane. This vertical stacking approach dramatically increases the number of lines that can be accommodated in the non-display area without increasing the horizontal space required, effectively resolving the space constraint issue.
3Ease of manufacture
If data link lines and touch lines are arranged in the same layer, then manufacturing is easier, but the intervals between lines must be larger to prevent interference
Solution Approach 1:
By moving the arrangement to multiple layers, the patent eliminates the need for large horizontal intervals between lines. The vertical separation between layers provides sufficient isolation to prevent electrical interference while allowing lines to be packed much more densely in the horizontal plane, thus reducing the overall area required and enabling narrower bezels.
Data Source
AI summary
Embodiments of the present disclosure relate to a display device, and more particularly, to a display device in which the number of data link lines or touch lines can be increased in a bent area or a folded area of a display panel. According to the embodiments of the present disclosure, it is possible to provide a display device in which the number of data link lines or touch lines can be increased in a bent area or a folded area of a display panel.