Electronic device, touch module and system common ground detection method thereof
A technology of electronic equipment and touch module, which is applied to the input/output process of electrical digital data processing, instruments, and data processing, etc., and can solve the problems of false alarm points of the system and signal interference of the whole machine
Active Publication Date: 2021-09-24
INTERFACE TECH CHENGDU CO LTD +2
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- Application Information
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Problems solved by technology
[0003] Based on this, it is necessary to provide an electronic device and its touch module for the problem that the common ground between the touch module and the system is easily damaged by external factors, which will affect the whole machine test and generate signal interference, resulting in the occurrence of false alarm points in the system. Group and system co-location test method
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[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...
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The invention relates to an electronic device, a touch module and system common ground detection method thereof, the electronic device comprises a metal casing, a power supply, the touch module and a detection bonding pad, the grounding end of the power supply is grounded through the metal casing, the touch module comprises a touch chip, the touch chip is provided with a grounding bonding pad and signal receiving pins, The grounding bonding pad is configured to be common-grounded with a grounding end of a power supply, the detection bonding pad is electrically connected with the signal receiving pin, and the detection bonding pad is configured to be used for forming a parallel plate capacitor with the metal shell when the grounding bonding pad is common-grounded with the grounding end of the power supply. The electronic device can solve the problem that the common ground of the touch module and the system is easily damaged by external factors to influence the whole machine test and generate signal interference to cause the occurrence of a false alarm point condition of the system.
Description
technical field [0001] The present invention relates to the technical field of electronic equipment, in particular to an electronic equipment and its touch module and system common inspection method. Background technique [0002] In electronic equipment, the common ground between the module and the system power supply ground can avoid signal interference and improve the signal-to-noise ratio, and provide a reference potential as a basis, which is very important in system design. For the touch module, it is more necessary to combine it with the display module and the application system to avoid being interfered by external signals and affecting the report processing. However, in practical applications, the common ground between the touch module and the system is easily damaged by external factors. It is difficult to be tested, which will affect the whole machine test and generate signal interference, resulting in the occurrence of false alarm points in the system. Contents...
Claims
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Login to View More IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04102G06F2203/04103
Inventor 罗文凯谢宗谚
Owner INTERFACE TECH CHENGDU CO LTD