Circuit Board Ground Protection Circuit ESD Discharge Paths
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Solution Overview
Problem
Electronic products face both sudden and latent damage from electrostatic discharge (ESD), with latent injuries often going undetected during manufacturing tests, leading to instability and potential harm to product quality.
Innovation Solution
A circuit board design featuring a ground protection circuit with parallel first and second wires and a bridging connection part, which increases the number of electrostatic discharge paths, allowing for more effective static electricity release and reducing the risk of ESD damage, by connecting first and second wires electrically through the bridging connection part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-path ground protection is used, then the structure is simple, but the electrostatic protection performance is insufficient
Solution Approach 1:
The ground protection circuit is segmented into multiple parallel first wires and second wires, with bridging connection parts dividing the wires into segments. This segmentation creates multiple discrete electrostatic discharge paths, allowing static electricity to be released through multiple channels simultaneously, thereby improving electrostatic protection performance while maintaining structural simplicity
Solution Approach 2:
The patent merges multiple first wires and second wires into a unified ground protection circuit through bridging connection parts. These connection parts electrically connect the parallel wires to form an integrated network of discharge paths, combining the protective function of multiple wires into a single coordinated system that enhances overall electrostatic protection
2Reliability
If multiple electrostatic discharge paths are created, then the electrostatic protection performance is improved, but the manufacturing complexity increases
Solution Approach 1:
The bridging connection parts serve multiple functions: they electrically connect parallel first and second wires, provide structural support for maintaining wire spacing, and create nodes that enable multiple discharge paths. This multi-functionality reduces the need for separate components and simplifies the manufacturing process while achieving improved electrostatic protection
Solution Approach 2:
The patent changes the structural parameters of the ground protection circuit by introducing bridging connection parts at specific positions along the wires. This parameter modification transforms the circuit from a simple single-path structure to a multi-path network, enabling enhanced electrostatic protection through standard manufacturing processes without requiring complex assembly steps
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 design significantly enhances electrostatic protection by increasing the number of discharge paths, effectively reducing the risk of ESD damage to the circuit board, while maintaining a narrow frame design and not requiring additional manufacturing steps or materials.
Implementation Method 1
electrostatic discharge paths are formed consisting of first wires, of second wires, and of a first wire together with a second wire, thereby increasing the number of electrostatic discharge paths, making it easier to release static electricity through electrostatic discharge paths
Implementation Method 2
One end of each first wire is grounded and the other end of each first wire is connected to the bridging connection part electrically, while one end of each second wire is connected to the bridging connection part electrically and the other end of each second wire is grounded
Data Source
AI summary
Embodiments of the present disclosure pertain to a circuit board, a display panel and a display device. The circuit board includes a ground protection circuit, disposed in a peripheral area of the circuit board. The ground protection circuit includes one or more first wires arranged in parallel, a bridging connection part and a plurality of second wires arranged in parallel, where one end of each first wire is grounded and the other end connects to the bridging connection part electrically, while one end of each second wire connects to the bridging connection part electrically and the other end is grounded. The display panel includes the circuit board and the display device includes the display panel.