Display Substrate Groove Elimination for Moisture Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display apparatuses face reliability issues due to damage from external impurities like moisture, particularly when grooves are formed in polymer substrates and portions are removed by laser, leading to degradation and device damage.
Innovation Solution
The display apparatus incorporates a design where lines and insulating layers in a first area are minimized to prevent damage from external impurities, enhancing reliability by reducing the risk of moisture ingress and maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If grooves are formed in polymer substrates and portions are removed by laser to add functions, then the display area can be expanded, but the substrate becomes vulnerable to damage from external impurities like moisture
Solution Approach 1:
The patent removes the vulnerable groove structure from the polymer substrate by using a non-polymer substrate (glass or transparent resin) that does not require grooves. This extraction of the problematic structural feature eliminates the moisture ingress pathways while maintaining the expanded display area function.
Solution Approach 2:
The patent changes the material parameter from polymer to non-polymer substrate, fundamentally altering the substrate's interaction with moisture. This material parameter change eliminates the capillary action and surface adhesion that create vulnerability in polymer substrates with grooves.
2Reliability
If lines and insulating layers are minimized in the first area to prevent damage, then reliability improves, but the structural complexity of the display apparatus changes
Solution Approach 1:
The patent divides the substrate into two functional areas: a first area with minimal structures for protection and a second area with standard pixel structures for display. This segmentation allows each area to be optimized for its specific function, reducing overall complexity while maintaining reliability.
Solution Approach 2:
The patent applies different structural qualities to different areas of the substrate. The first area has minimized lines and insulating layers for maximum protection, while the second area has full pixel structures for display functionality. This local differentiation optimizes both reliability and function without requiring complete structural simplification.
Data Source
AI summary
A display apparatus includes a substrate including a first area, a display area surrounding the first area, and a non-display area surrounding the display area; pixels disposed in the display area; scan lines extending in a first direction and disconnected in the first area; data lines extending in a second direction intersecting the first direction and disconnected in the first area; and data connection lines electrically connecting the data lines disconnected in the first area.