Touch input device
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United States of America Patent
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Jan 5, 2021
Grant Date -
Feb 28, 2019
app pub date -
Aug 21, 2018
filing date -
Aug 22, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A touch input device which detects a touch position and a touch pressure magnitude may be provided that includes: a display module; a first electrode and a second electrode which are disposed on the display module and are spaced apart from each other; a spacer layer which is formed on the display module and covers the first electrode and the second electrode; and a transparent ground electrode which is disposed on the spacer layer and is formed of a material having transparency. A distance between the transparent ground electrode and the display module is changed by inputting a touch on the transparent ground electrode, and a capacitance between the first electrode and the second electrode is changed by the distance change. The position of the touch and the pressure magnitude of the touch are detected based on the changed capacitance.
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