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US 2010/0141571 A1Published application
Image Sensor with Integrated Light Meter for Controlling Display Brightness
OwnerTony Chiang, Amit Mittrainventors
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Abstract
The present invention is directed to an image sensor with an integrated light meter that can be used to automatically adjust the display brightness based on ambient light in the environment. According to one embodiment, an automatic exposure (AE) control loop estimates the ambient light when the image sensor is imaging, and the image sensor measures the ambient light when the image sensor is not imaging.
Claims20
A display with an integrated light meter, comprising:
- an image sensor;
- and
- an automatic exposure (AE) control loop configured to measure ambient light intensity, when the image sensor is imaging, for adjusting the brightness of the display;
- wherein, when the image sensor is not imaging, the image sensor is continuously exposed and collecting light signal for determining the ambient light intensity.
1 more element
A method for controlling display brightness, comprising:
- providing an image sensor;
- measuring an ambient light intensity by an automatic exposure (AE) control loop when the image sensor is imaging;
- measuring the ambient light intensity by collecting a light signal from the image sensor when the image sensor is not imaging;
- and
- adjusting the display brightness according to the ambient light intensity.
2 more elements
Dependencies are inferred from the claim text.