Display Drive Connection Insulation for Stable High-Speed Signals
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Solution Overview
Problem
Existing display devices face challenges in stably supplying high-speed signal wires, such as power supply lines, due to undesired coupling between the circuit board and connection portions, leading to instability in signal transmission.
Innovation Solution
Incorporation of insulation patterns between the circuit board and connection portions, with insulation resistance values ranging from 1.00×10^13 to 2.00×10^13 Ω, to widen the gap and reduce coupling, ensuring stable signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connection portion is directly attached to the circuit board for compact design, then device complexity is reduced, but signal transmission stability deteriorates due to undesired coupling
Solution Approach 1:
The insulation pattern serves as an intermediary element positioned between the connection portion and the circuit board. This intermediate structure physically separates the signal transmission line from the connection portion, eliminating direct coupling while maintaining the functional connection. The insulation pattern acts as a mediator that preserves signal integrity without compromising the structural integration.
Solution Approach 2:
The insulation pattern divides the coupling space into distinct regions by creating an insulating barrier. This segmentation separates the electromagnetic fields of the signal transmission line from the connection portion, preventing unwanted interaction. The segmentation approach maintains compact design while ensuring signal stability through spatial separation.
2Reliability
If insulation patterns are added to reduce coupling, then signal transmission stability is improved, but device complexity increases
Solution Approach 1:
The insulation pattern is implemented as a thin film or planar structure that can be integrated into the existing circuit board layers. This thin-film approach provides effective electrical insulation without adding significant thickness or structural complexity. The flexible, planar nature of the insulation pattern allows it to be seamlessly incorporated into the circuit board design.
Solution Approach 2:
The insulation pattern is merged with the existing circuit board structure, combining the insulation function with the circuit board's ground planes or reference structures. This integration ensures that the insulation pattern becomes part of the overall circuit design rather than a separate addition, thereby minimizing the increase in device complexity while maintaining signal transmission stability.
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 insulation patterns effectively minimize undesired coupling, allowing for stable and consistent signal supply to the display panel, enhancing operational reliability.
Implementation Method 1
an insulation resistance value of each of the plurality of insulation patterns may range from about 1.00×10^13(Ω) to about 2.00×10^13(Ω)
Data Source
AI summary
A drive portion for a display device according to an embodiment may include: a circuit board including a signal transmission line; a connection portion attached to the circuit board; and a plurality of insulation patterns located in an area where the circuit board and the connection portion are connected with each other. The plurality of insulation patterns may be located between the circuit board and connection portion and may not overlap the signal transmission line.