LCD Backlight Duration Proportional To Amount Of Information On The LCD Display Screen
AssigneeResearch In Motion Limited
InventorsDale K. Brubacher-Cressman, Jason T. Griffin, Graham N. Pearce, Peter N. Turner
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Abstract
This relates to a method for controlling illumination of a display screen on a mobile device. A light source is turned on to illuminate the display screen. An amount of information displayed on the display screen is identified. An amount of time to keep the light source turned on is determined based at least in part on the identified amount of information. The light source is kept turned on at a first intensity level for the amount of time and then turned to a second intensity level.
Claims15
A method for controlling illumination of a display screen, comprising:
- turning on a light source to illuminate the display screen;
- identifying an amount of information displayed on the display screen;
- determining an amount of time to keep the light source turned on based at least in part on the identified amount of information;
- and
- keeping the light source turned on at a first intensity level for the amount of time, and then turning the light source to a second intensity level.
A communication device comprising:
- a display screen:
- means for turning on a light source to illuminate the display screen;
- means for identifying an amount of information displayed on the display screen;
- means for determining an amount of time to keep the light source turned on based at least in part on the identified amount of information;
- and
- means for keeping the light source turned on at a first intensity level for the amount of time, and then turning the light source to a second intensity level.
Dependencies are inferred from the claim text.