Display Panel Auxiliary Power Line Layout for Signal Stability
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Solution Overview
Problem
Existing display technologies face challenges in maintaining signal stability due to coupling capacitance between scanning lines and auxiliary power lines, which affects the display performance.
Innovation Solution
The implementation of auxiliary power lines arranged in a zigzag manner in the second direction, avoiding overlap with scanning lines and protrusion portions, reduces coupling capacitance and enhances signal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If auxiliary power lines are arranged in a straight manner to simplify the structure, then the device complexity is reduced, but coupling capacitance increases between scanning lines and auxiliary power lines, worsening signal stability
Solution Approach 1:
The auxiliary power lines are arranged in a zigzag pattern rather than a straight line, creating a curved configuration that avoids direct overlap with scanning lines. This curvature reduces the coupling capacitance between adjacent conductive lines, thereby improving signal stability while maintaining a relatively simple overall structure.
2Area of stationary object
If auxiliary power lines overlap with scanning lines to reduce the area occupied, then the display panel area is reduced, but coupling capacitance increases, worsening display performance
Solution Approach 1:
The auxiliary power lines are extended in the second direction (vertical direction) rather than only in the first direction (horizontal direction). This dimensional change allows the lines to bypass overlapping regions with scanning lines while still covering the necessary area, reducing coupling capacitance and improving signal stability without significantly increasing the overall display panel area.
Data Source
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AI summary
Disclosed are a display panel and a display device. The display panel comprises: a base substrate, a plurality of scanning lines, a first insulating layer, a plurality of data lines, an interlayer insulating layer, and an auxiliary power line. The auxiliary power line comprises: a plurality of sub-auxiliary power lines and a plurality of auxiliary conduction lines; the plurality of sub-auxiliary power lines are arranged in a first direction and extend in a second direction, and two sub-auxiliary power lines that are at least partially adjacent are electrically connected by means of at least one auxiliary conduction line; the orthographic projection of at least one of the plurality of auxiliary conduction lines on the base substrate does not overlap the orthographic projections of the scanning lines on the base substrate.