Display Apparatus Voltage Line Layout for Signal Integrity
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Solution Overview
Problem
Current display technologies face challenges in minimizing dead areas and preventing pattern recognition issues in display areas, which affect the overall efficiency and user experience of display devices.
Innovation Solution
The proposed display apparatus includes a substrate with a display area and a peripheral area, featuring data lines, voltage lines, and transistors, where the second voltage line is positioned between the scan line and the line, with a segment protruding perpendicular to the line, and a sensing electrode with a grid line overlapping the line's segment, ensuring the second voltage line is wider than the line and spaced apart from the scan line, and the first voltage line is on a different layer, minimizing signal interference and parasitic capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the second voltage line is disposed on a layer between the scan line and the line, then signal interference and parasitic capacitance are minimized, but the device structure becomes more complex with multiple layers
Solution Approach 1:
The patent applies layer stacking to arrange the second voltage line on a different layer between the scan line and the line. This spatial separation in the vertical dimension reduces signal interference and parasitic capacitance while maintaining electrical functionality, resolving the contradiction between signal quality and structural complexity.
2Reliability
If the second voltage line is wider than the line, then signal interference is reduced, but the dead area in the display area increases
Solution Approach 1:
The patent implements local quality by making the second voltage line wider than the line only in specific regions where signal interference occurs, while maintaining standard width in other areas. This localized width adjustment reduces signal interference and parasitic capacitance without unnecessarily increasing the dead area across the entire display.
3Reliability
If the segment of the line protrudes perpendicular to the line extension direction, then pattern recognition is prevented, but the manufacturing precision requirements increase
Solution Approach 1:
The patent introduces asymmetry by adding a segment that protrudes perpendicular to the line extension direction. This asymmetric design breaks potential pattern recognition in the display area, preventing visual artifacts. The protruding segment creates an intentional irregularity that disrupts repetitive patterns while remaining manufacturable with standard precision.
Data Source
AI summary
A display apparatus includes a data line, a first voltage line extending in parallel to the data line, a scan line extending in a direction perpendicular to the data line, a second voltage line extending in parallel to the scan line, and a line extending in parallel to the data line or the scan line. A portion of the line parallel to the scan line overlaps the second voltage line.