- 专利标题: Switching circuitry for touch sensitive display
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申请号: US14550686申请日: 2014-11-21
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公开(公告)号: US09996175B2公开(公告)日: 2018-06-12
- 发明人: Steven P. Hotelling , Marduke Yousefpor , Shih Chang Chang
- 申请人: Apple Inc.
- 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: Morrison & Foerster LLP
- 主分类号: G06F3/041
- IPC分类号: G06F3/041 ; G06F1/32 ; G06F3/044 ; G09G3/36
摘要:
A circuit for switching an LCD between display and touch modes is disclosed. The circuit can include one or more switches configured to switch one or more drive, sense, and data lines in LCD pixels according to the mode. During touch mode, the circuit switches can be configured to switch one or more drive lines to receive stimulation signals, one or more sense lines to transmit touch signals, and one or more data lines to transmit residual data signals. During display mode, the circuit switches can be configured to switch one or more drive lines and sense lines to receive common voltage signals and one or more data lines to receive data signals. The circuit can be formed around the border of the LCD chip or partially or fully on a separate chip.
公开/授权文献
- US20150077375A1 SWITCHING CIRCUITRY FOR TOUCH SENSITIVE DISPLAY 公开/授权日:2015-03-19