Invention Application
- Patent Title: INPUT DEVICE HAVING ANTI-STATIC LAYER BYPASS
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Application No.: US14859771Application Date: 2015-09-21
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Publication No.: US20170083151A1Publication Date: 2017-03-23
- Inventor: Kasra KHAZENI , Joseph Kurth REYNOLDS
- Applicant: SYNAPTICS INCORPORATED
- Main IPC: G06F3/041
- IPC: G06F3/041 ; H05F3/02 ; G06F3/044

Abstract:
An input device having an anti-static layer coupled to a grounding element such as a cellphone bottom chassis via a current hindering circuit having a resistive circuit element. Without the current hindering circuit having a resistive circuit element, a large amount of the current from an input object would flow through the connection to the grounding element and would not flow to a receiver channel for processing. This decreases the signal strength within the receiver channel, making sensing more difficult to perform. However, with the current hindering circuit having a resistive circuit element, current is hindered from flowing to ground and thus flows to the receiver channel, thereby increasing the signal strength. The current hindering circuit having a resistive circuit element may be a resistor or a Zener diode that is directed to prevent current flow from the anti-static layer to the grounding element until a significant voltage has built up across the Zener diode.
Public/Granted literature
- US09715312B2 Input device having anti-static layer bypass Public/Granted day:2017-07-25
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