Panel Detecting Circuit Sharing Grounding Loop for Narrow Bezel
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Solution Overview
Problem
In the precise panel industry, the need for both antistatic grounding loops and detection lines at the panel's periphery leads to space occupancy issues, hindering the achievement of a narrow bezel design.
Innovation Solution
A panel structure with a detecting circuit that shares a common grounding loop for both antistatic and detection functions, utilizing switches and multiplexers to switch between detection and protection modes, thereby reducing space occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both antistatic grounding loop and detection line are added at the periphery of the panel, then both antistatic protection and panel detection functions are achieved, but the peripheral space is occupied, preventing narrow bezel design
Solution Approach 1:
The patent merges the antistatic grounding loop and detection line into a single shared grounding loop structure. The detecting circuit includes switches and multiplexers that allow the same grounding loop to serve dual purposes: antistatic protection when switches are closed, and panel detection when switches are open. This eliminates the need for separate peripheral lines for both functions.
Solution Approach 2:
The grounding loop is designed with multi-functionality through the incorporating of switching components (first switch, second switch) and multiplexing components (first multiplexer, second multiplexer). The same physical grounding loop can dynamically perform either antistatic grounding or detection functions based on the state of the switches, allowing one structure to fulfill multiple roles.
2Reliability
If additional detection line is added at the periphery of the panel, then panel detection capability is improved, but the bezel width increases
Solution Approach 1:
The detection function is merged with the existing grounding loop structure. Instead of adding a separate detection line at the periphery, the patent uses the grounding loop combined with switching and multiplexing components to provide both antistatic protection and detection capabilities, thereby maintaining narrow bezel width while preserving detection reliability.
3Area of stationary object
If grounding loop and detection line share the same peripheral space, then narrow bezel is achieved, but functional interference may occur
Solution Approach 1:
The patent introduces dynamic switching components (first switch, second switch) that can change the electrical connection state of the grounding loop. When switches are closed, the grounding loop provides antistatic protection; when switches are open, the same loop is reconfigured for detection purposes. This dynamic reconfiguration prevents functional interference between the two purposes.
Solution Approach 2:
The switches and multiplexers act as intermediary components that mediate between the grounding loop and the detection circuitry. These intermediaries control the signal flow and electrical connections, ensuring that antistatic protection and detection functions operate independently without interference while sharing the same physical space.
Data Source
AI summary
A detecting circuit for a panel adapted for detecting a panel which has a grounding loop is disclosed. The detecting circuit for a panel includes a first switch and a first multiplexer. The first switch is electrically connected to the grounding loop and a first ground terminal. The first switch is off in a detecting mode and on in a protection mode. The first multiplexer is electrically connected to the grounding loop and a second ground terminal. In the detecting mode, the current path between a first signal terminal of the first multiplexer and the grounding loop is conducted by the first multiplexer. In the protection mode, the current path between the second ground terminal and the grounding loop is conducted by the first multiplexer.