Invention Grant
- Patent Title: Touch panel and display device having a structure for reducing residual charge
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Application No.: US14793637Application Date: 2015-07-07
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Publication No.: US09886149B2Publication Date: 2018-02-06
- Inventor: Yingteng Zhai
- Applicant: Shanghai Tianma Micro-Electronics Co., Ltd. , Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Shanghai CN Shenzhen
- Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee Address: CN Shanghai CN Shenzhen
- Agency: Alston & Bird LLP
- Priority: CN201510152694 20150401
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G09G3/36 ; G06F3/044

Abstract:
A touch panel and a display device are provided according to the disclosure. The touch panel includes a common electrode and multiple pixel electrodes, and each of the pixel electrodes is short-circuited to the common electrode when the touch panel is powered off. Thus, there is no potential difference between the pixel electrode in each pixel unit and the common electrode, and there is no residual charge between the pixel electrode and the common electrode, after the touch panel is powered off. Therefore, liquid crystal molecules may be twisted in the case that the touch panel is powered off, impurity ions inside the liquid crystal molecules may not be polarized, and may not be attached to an upper substrate and a lower substrate of a touch panel in a long term.
Public/Granted literature
- US20160291789A1 TOUCH PANEL AND DISPLAY DEVICE Public/Granted day:2016-10-06
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