Invention Grant
- Patent Title: Touch input device capable of detecting touch pressure and comprising display module
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Application No.: US15758508Application Date: 2016-09-06
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Publication No.: US10459560B2Publication Date: 2019-10-29
- Inventor: Tae Hwan Kim , Bon Kee Kim
- Applicant: HiDeep Inc.
- Applicant Address: KR
- Assignee: HIDEEP INC.
- Current Assignee: HIDEEP INC.
- Current Assignee Address: KR
- Agency: The Belles Group, P.C.
- Priority: KR10-2015-0127566 20150909
- International Application: PCT/KR2016/009938 WO 20160906
- International Announcement: WO2017/043829 WO 20170316
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G02F1/1333 ; H01L27/32

Abstract:
A touch input device detecting a touch position and a touch pressure includes a display module having a first layer made of glass or plastic and a second layer disposed under the first layer and made of glass or plastic; touch electrodes formed within the display module for detecting the touch position and the touch pressure; and a reference electrode disposed apart from the touch electrode. The touch position is detected by a sensing signal received from the touch electrode. An electrical signal changed by a capacitance between the touch electrode and the reference electrode is detected from the touch electrode. The capacitance is changed by change of a distance between the touch electrode and the reference electrode. The distance between the touch electrode and the reference electrode is changed by the bending of the display module. The touch pressure is detected based on the capacitance.
Public/Granted literature
- US20180246611A1 TOUCH INPUT DEVICE CAPABLE OF DETECTING TOUCH PRESSURE AND COMPRISING DISPLAY MODULE Public/Granted day:2018-08-30
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