发明授权
- 专利标题: Dynamic voltage generation for touch-enabled displays
- 专利标题(中): 支持触摸显示的动态电压产生
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申请号: US13563412申请日: 2012-07-31
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公开(公告)号: US09164606B2公开(公告)日: 2015-10-20
- 发明人: Christoph H. Krah , Yafei Bi , Kevin J. White
- 申请人: Christoph H. Krah , Yafei Bi , Kevin J. White
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Blank Rome LLP
- 主分类号: G06F3/041
- IPC分类号: G06F3/041 ; G06F3/044
摘要:
The disclosed embodiments relate to a system that provides power for a touch-enabled display, wherein the touch-enabled display cycles between a display mode and a touch mode. During the display mode, the system drives a display-mode voltage to the touch-enabled display through a power output, wherein the power output is coupled through a display-mode capacitor CD to ground. Next, during a transition from the display mode to the touch mode, the system couples the power output through a touch-mode capacitor CT to ground, wherein CT was previously charged to a touch-mode voltage, which causes the power output to rapidly transition to the touch-mode voltage. Then, during the touch mode, the system drives the touch-mode voltage through the power output.
公开/授权文献
- US20130328824A1 DYNAMIC VOLTAGE GENERATION FOR TOUCH-ENABLED DISPLAYS 公开/授权日:2013-12-12
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