- 专利标题: DISTRIBUTED BLANKING FOR TOUCH OPTIMIZATION
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申请号: US13606547申请日: 2012-09-07
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公开(公告)号: US20130057512A1公开(公告)日: 2013-03-07
- 发明人: Jeffrey Lillie , John Childs , Christopher Ludden , Thomas Mackin , Petr Shepelev
- 申请人: Jeffrey Lillie , John Childs , Christopher Ludden , Thomas Mackin , Petr Shepelev
- 申请人地址: US CA Santa Clara
- 专利权人: Synaptics Incorporated
- 当前专利权人: Synaptics Incorporated
- 当前专利权人地址: US CA Santa Clara
- 主分类号: G06F3/044
- IPC分类号: G06F3/044
摘要:
Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.
公开/授权文献
- US09041685B2 Distributed blanking for touch optimization 公开/授权日:2015-05-26
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