Electronic device with display brightness control
First Claim
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.
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Accused Products
Abstract
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.
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Citations
22 Claims
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1. A method, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of adjusting a brightness of a display in an electronic device, comprising:
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determining an ambient light level with an ambient light sensor in the electronic device; with control circuitry in the electronic device, based on the ambient light level, selecting a transfer function from a plurality of transfer functions, wherein each transfer function is associated with a range of ambient light levels, and wherein selecting the transfer function comprises; in response to a first ambient light level, selecting a first transfer function; and in response to a second ambient light level that is different than the first ambient light level, transitioning from the first transfer function to a second transfer function; and with the control circuitry in the electronic device, adjusting the brightness of the display in the electronic device according to the selected transfer function. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An electronic device, comprising:
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a display; an ambient light sensor that senses ambient light and generates ambient light data; a proximity sensor that senses whether an external object is present and generates proximity data; and control circuitry for determining whether the presence of the external object affects the ambient light data and for adjusting a brightness level of the display based on the ambient light data and the proximity data. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification