Rated Voltage Transfer Line Layout for Display Noise Isolation
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Solution Overview
Problem
Existing display devices face challenges in maintaining display quality due to noise interference between different blocks of the timing controller, which degrades the signal quality and overall performance.
Innovation Solution
A rated voltage transfer line is introduced, featuring capacitors and separate sub-lines connected to different points of a rated voltage applied portion, with noise transfer paths defined through capacitors, ensuring shorter voltage and noise transfer paths to reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If separate sub-lines are used to supply rated voltage to different blocks, then noise interference between blocks is reduced, but device complexity increases
Solution Approach 1:
The rated voltage transfer line is divided into multiple separate sub-lines (first sub-line, second sub-line, etc.), each electrically connected to different blocks of the timing controller. This segmentation prevents noise generated in one block from being transferred to other blocks through a common voltage line, thus reducing noise interference while maintaining manageable device complexity through systematic design.
Solution Approach 2:
Capacitors are introduced as intermediary elements connected between the rated voltage applied portion and ground. These capacitors act as noise filters that block high-frequency noise from propagating through the voltage supply lines, thereby reducing noise interference without requiring complete isolation of all voltage paths.
2Object-affected harmful factors
If multiple capacitors are added to filter noise, then noise interference is reduced, but device complexity increases
Solution Approach 1:
Capacitors are strategically placed at specific locations where noise filtering is most needed - between the rated voltage applied portion and ground at key nodes in the circuit. This localized approach provides effective noise filtering at critical points without adding capacitors throughout the entire circuit, thereby reducing noise interference while minimizing the increase in device complexity.
3Object-affected harmful factors
If longer voltage transfer paths are used to connect power sources to blocks, then noise filtering is improved, but voltage transfer efficiency decreases
Solution Approach 1:
Capacitors serve as intermediary noise-filtering elements that provide frequency-selective filtering without adding significant path length to the voltage transfer routes. By placing capacitors in parallel with the voltage lines at strategic points, noise is filtered through the capacitor's impedance characteristics rather than through extended transmission paths, thus achieving noise filtering while maintaining short voltage transfer paths and high voltage transfer efficiency.
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 solution effectively reduces noise generation between blocks, enhancing display quality by stabilizing voltage supply and minimizing signal interference.
Implementation Method 1
at least one capacitor including a first terminal connected to the rated voltage applied portion and a second terminal grounded
Data Source
AI summary
A rated voltage transfer line includes: a rated voltage applied portion to which a first rated voltage is applied; at least one capacitor including a first terminal connected to the rated voltage applied portion and a second terminal grounded; a first rated voltage transfer electrode which electrically contacts the rated voltage applied portion at a first point; a second rated voltage transfer electrode which electrically contacts the rated voltage applied portion at a second point different from the first point; a first sub-line electrically connected to the first rated voltage transfer electrode; and a second sub-line electrically connected to the second rated voltage transfer electrode.