Multiplexer Wiring Reduces Parasitic Capacitance
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Solution Overview
Problem
In display panels, the intersection or overlap of control lines with data transmission lines leads to parasitic capacitance, reducing the charging rate of display pixels and affecting image quality.
Innovation Solution
The design of a multiplexer with data transmission lines positioned on opposite sides of control lines, reducing intersections and overlaps, thereby minimizing parasitic capacitance and maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If control lines and data transmission lines are routed in the same direction, then device complexity is reduced, but parasitic capacitance increases due to intersections and overlaps
Solution Approach 1:
The patent applies dimensionality change by routing control lines and data transmission lines in different spatial dimensions. Specifically, data transmission lines extend in a first direction while control lines extend in a second direction that is different from the first direction, causing them to cross at angles rather than run parallel. This dimensional separation reduces the length of overlap between lines, thereby minimizing parasitic capacitance while maintaining routing efficiency.
2Ease of manufacture
If control lines and data transmission lines intersect or overlap, then wiring planning is simplified, but charging rate of display pixels decreases due to parasitic capacitance
Solution Approach 1:
The patent resolves this contradiction by changing the dimensional relationship between control lines and data transmission lines. Instead of having them run parallel (same dimension), the control lines are routed in a different direction, creating angular crossings that minimize the overlap length. This reduces parasitic capacitance effects while keeping the wiring plan straightforward.
3Device complexity
If the number of pins is reduced using a multiplexer, then device complexity is reduced, but control lines must intersect with data lines causing parasitic capacitance
Solution Approach 1:
The patent addresses this contradiction by routing control lines and data transmission lines in different directions through the multiplexer structure. The control lines extend in a first direction while data transmission lines extend in a second direction, creating minimal intersection points and reducing the length of any overlaps, thereby minimizing parasitic capacitance while maintaining pin reduction benefits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration effectively reduces parasitic capacitance, preventing a decrease in display pixel charging rates and maintaining the quality of the display image.
Implementation Method 1
parasitic capacitance will be generated between the control lines and the data transmission lines (or the data lines)
Data Source
AI summary
The disclosure provides a multiplexer and a display panel. In the multiplexer, a first and second output ends are respectively connected to a first and second data transmission lines. Control ends of a first and second switches are respectively coupled to a first and second control lines. First ends of the first and second switches are respectively coupled to the first and second output ends. The first data transmission line, the second data transmission line, the first control line, and the second control line extend along a first direction, and the first output end and the second output end are disposed on opposite sides of the first control line.