发明授权
- 专利标题: Backlight control of electronic device
- 专利标题(中): 电子设备的背光控制
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申请号: US12909536申请日: 2010-10-21
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公开(公告)号: US08194031B2公开(公告)日: 2012-06-05
- 发明人: Wei Yao , Wei Chen
- 申请人: Wei Yao , Wei Chen
- 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: Beyer Law Group LLP
- 主分类号: G09G3/36
- IPC分类号: G09G3/36
摘要:
Embodiments are provided herein which may be utilized to eliminate stray light emissions from an LED while ambient light is being sensed. As such, dynamic backlight control systems for use with an electronic display are presented including: an ambient light sensor for sensing ambient light intensity; a backlight for illuminating the electronic display; a switch for controlling the backlight, the switch configured to set a backlight condition to ON or OFF in response to a backlight-off frequency such that the ambient light sensor senses the ambient light intensity in the absence of the backlight; a logic module for determining a backlight level in response to the ambient light intensity; and a backlight control circuit for adjusting the backlight to the backlight level in response to the ambient light intensity.
公开/授权文献
- US20110032285A1 BACKLIGHT CONTROL OF ELECTRONIC DEVICE 公开/授权日:2011-02-10
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