Anti-interference Wiring for LCD Signal Crosstalk
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Solution Overview
Problem
Liquid crystal display (LCD) devices experience signal interference due to overlapping regions between gate and data lines, leading to distortion of data signals and adverse impact on image quality.
Innovation Solution
An anti-interference wiring structure is introduced, featuring anti-interference wires between gate and data lines, insulated from them, carrying a signal with a reverse phase compared to the gate lines, with a smaller width and closer proximity to gate lines than data lines, to reduce signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gate lines and data lines are arranged in overlapping grid pattern, then device integration is improved, but signal interference increases
Solution Approach 1:
An anti-interference wire is introduced as an intermediary element positioned between the gate line and data line. This mediator carries a reverse-phase signal that actively counteracts the electromagnetic interference generated by the gate line, thereby protecting the data line from cross-talk while maintaining the integrated grid layout.
Solution Approach 2:
The anti-interference wire carries a signal with reverse phase to the gate line signal in advance, creating a preemptive counter-action that neutralizes the harmful electromagnetic field before it can interfere with the data line. This preliminary anti-action prevents cross-talk distortion before it affects the data signal integrity.
2Object-affected harmful factors
If anti-interference wire is placed closer to gate line, then interference reduction is improved, but coupling with data line decreases
Solution Approach 1:
The wiring structure employs differentiated spatial relationships: the anti-interference wire is positioned closer to the gate line than to the data line. This local quality differentiation optimizes the counteraction effect on the gate line's electromagnetic field while maintaining sufficient coupling with the data line for effective interference cancellation.
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
The anti-interference wiring structure effectively minimizes signal interference by creating a weaker electric field between data lines and gate lines, thereby enhancing image quality by reducing cross-talk and signal distortion.
Implementation Method 1
the anti-interference wire is configured for carrying signal having a reverse phase compared to the signal carried by the corresponding gate line
Implementation Method 2
creating a weaker electric field between data lines and gate lines
Data Source
AI summary
An exemplary anti-interference wiring assembly for a liquid crystal display device includes a base substrate (210), gate lines (201) formed at the base substrate, anti-interference wires (230), and data lines (202). The anti-interference wires are provided between the gate lines and the data lines and are insulated from the gate lines and the data lines respectively. The anti-interference wires are configured for carrying signals having a reverse phase compared to signals carried by the corresponding gate lines.