BACKLIGHT AND AMBIENT LIGHT SENSOR SYSTEM

摘要

Apparatuses and methods to operate a display device of an electronic device. In some embodiments, a method includes receiving a user setting or input of a display control parameter, and causing or altering, based on the user setting or input, an effect of an ambient light sensor value (ALS) on control of the display control parameter. The user input may be an unlock of a touch screen input capability of the display device, and a wake of the display device from inactivity dim. Also, according to embodiments of the inventions, a method of operating a display of an electronic device includes receiving a change to one of a display brightness output level and an ambient light sensor output level, and altering, according to the change, a display brightness or contrast output level. Other apparatuses and methods and data processing systems and machine readable media are also described.

主权项

1. A method of operating a device which includes a display having a touch screen input device, the method comprising:
operating the display, while the touch screen input device receives one or more inputs, at a brightness level controlled by an ambient light sensor (ALS) that takes measurements of ambient light around the device; determining that the device has become inactive; entering an inactivity dim state in response to determining that the device has become inactive, wherein during the inactivity dim state the display is operated at a dim brightness level and a plurality of different ambient light levels do not effect control of the brightness level of the display and the touch screen input device does not accept inputs until after a wake input which causes the device to exit the inactivity dim state; receiving the wake input which is one or more touches on the touch screen input device, wherein the touch screen input device is a multi-touch input device; adjusting the brightness level of the display in response to receiving the wake input which causes the device to exit the inactivity dim state, wherein the brightness level is adjusted with the ALS such that a plurality of different ambient light levels measured by the ALS do effect control of the brightness level after receiving the wake input.