Invention Application
- Patent Title: TOUCH DISPLAY APPARATUS SENSING TOUCH FORCE
- Patent Title (中): 触摸显示设备感应触摸屏
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Application No.: US14804107Application Date: 2015-07-20
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Publication No.: US20150324052A1Publication Date: 2015-11-12
- Inventor: Kangwon LEE , Won-ki HONG , Moonsung CHOI , Seungho NAM
- Applicant: Samsung Display Co., Ltd.
- Priority: KR10-2012-0092916 20120824
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
A touch display device is provided which includes a display panel for displaying an image, and a touch screen panel disposed on the display panel and configured to sense at least one touch. The touch screen panel includes a touch substrate at which the touch can be generated; sensing electrodes provided on the touch substrate and spaced apart from one another, each of the sensing electrodes being formed of a piezoresistive material having a resistance value that varies according to an applied force; and a touch processor electrically connected to the sensing electrodes. The touch processor extracts a touch coordinate based on time constants of sensing signals applied to the sensing electrodes, and calculates a touch force of the touch based on resistance values of the sensing electrodes.
Public/Granted literature
- US09626030B2 Touch display apparatus sensing touch force Public/Granted day:2017-04-18
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