Transparent Display Substrate Layout to Minimize Line Overlap
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In large-size transparent display products using AMOLED technology, the overlapped area between power supply lines and other signal lines is significant, affecting product yield and reliability.
Innovation Solution
A display substrate design with a base substrate and multiple display units, where each display unit includes a display area with sub-pixels, scan signal lines, and power supply lines. The design optimizes the layout of signal lines to minimize overlap with power supply lines, forming annular structures that keep the signal lines away from the power supply lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power supply lines and signal lines are routed in conventional layouts, then device functionality is achieved, but overlapped area between power supply lines and signal lines increases, affecting product yield and reliability
Solution Approach 1:
The patent applies dimensionality change by forming annular structures with scan signal lines and scan connection lines that extend in multiple directions around the power supply lines. Instead of simple linear routing, the signal lines create ring-shaped patterns that utilize two-dimensional space more effectively, allowing signal lines to bypass power supply lines while maintaining electrical connections and minimizing overlap area.
Solution Approach 2:
The patent segments the signal transmission path by dividing scan signal lines and scan connection lines into multiple sections that form annular structures. These segmented lines are distributed around the power supply lines rather than running parallel, which reduces the continuous overlapped area and improves reliability by distributing the signal paths.
2Reliability
If signal lines are routed to maintain adequate spacing from power supply lines, then product reliability improves, but device complexity and layout difficulty increase
Solution Approach 1:
The annular structures formed by scan signal lines and scan connection lines serve multiple functions simultaneously: they maintain adequate spacing from power supply lines to reduce interference, provide electrical connections between different circuit elements, and create a compact layout that fits within the display device constraints. This multi-functionality reduces overall device complexity despite the unconventional routing.
Solution Approach 2:
The patent merges the functions of scan signal lines and scan connection lines into integrated annular structures. By combining these typically separate elements into unified ring-shaped patterns, the design simplifies the overall layout while maintaining the necessary spacing and connections, reducing the complexity of routing multiple separate lines.
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A display substrate, a preparation method therefor, and a display apparatus. The display substrate comprises a plurality of display units, and each display unit comprises a display area and a transparent area; each display area is provided with a first power supply line and a second power supply line along a first direction, said display area is provided with a first scan signal line, a second scan signal line, a second scan connection line, and a first scan connection line along a second direction, and the second scan connection line and the second scan signal line are connected into a first annular structure; each display area is further provided with a third scan connection line, and the third scan connection line, the first scan connection line, and the first scan signal line are connected into a second annular structure; orthographic projections of the first annular structure, the first power supply line, and the second power supply line onto a base substrate do not overlap; and orthographic projections of the second annular structure, the first power supply line, and the second power supply line onto the base substrate do not overlap.