Invention Grant
US08194031B2 Backlight control of electronic device 有权
电子设备的背光控制

  • Patent Title: Backlight control of electronic device
  • Patent Title (中): 电子设备的背光控制
  • Application No.: US12909536
    Application Date: 2010-10-21
  • Publication No.: US08194031B2
    Publication Date: 2012-06-05
  • Inventor: Wei YaoWei Chen
  • Applicant: Wei YaoWei Chen
  • Applicant Address: US CA Cupertino
  • Assignee: Apple Inc.
  • Current Assignee: Apple Inc.
  • Current Assignee Address: US CA Cupertino
  • Agency: Beyer Law Group LLP
  • Main IPC: G09G3/36
  • IPC: G09G3/36
Backlight control of electronic device
Abstract:
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.
Public/Granted literature
Information query
Patent Agency Ranking
0/0