Electronic device with display brightness control

摘要

Automatic display brightness adjustments may be made by an electronic device based on ambient light sensor data. Proximity sensor data from a light-based proximity sensor, from nearby capacitive sensor electrodes in a touch screen, or from other proximity sensing components may be used to determine whether the ambient light sensor is being shadowed by a hand or other external object. Ambient light sensor data associated with blocked sensor conditions can be suppressed. A transient event filter may be used to remove spikes from ambient light sensor data. A display brightness baseline may be adaptively adjusted. Short changes in ambient light level may result in corresponding momentary adjustments to display brightness. Longer changes in ambient light level may be associated with persistent changes in the display brightness baseline.

主权项

1. A method, comprising:
with an ambient light sensor in an electronic device, collecting ambient light data; with a proximity sensor in the electronic device, gathering proximity data indicative of whether an external object is shadowing the ambient light sensor; with control circuitry in the electronic device, determining whether the ambient light data is affected by the external object; and with the control circuitry, adjusting a brightness level for a display in the electronic device based on the ambient light data and the proximity data.