Display Brightness Adjustment
First Claim
Patent Images
1. A method comprising:
- controlling a brightness of a display of a portable electronic device to a first brightness level as a function of a first level of ambient light;
controlling the brightness of the display to a second brightness level as a function of a second level of ambient light, the second level of ambient light being substantially changed from the first level of ambient light; and
without a substantial change in the ambient light level, subsequently controlling the brightness of the display to a third brightness level.
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Accused Products
Abstract
Concepts are described pertaining to controlling a brightness level of a display of a portable electronic device as a function of the ambient light, and controlling the display brightness level to accommodate human light or dark adaptation.
36 Citations
16 Claims
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1. A method comprising:
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controlling a brightness of a display of a portable electronic device to a first brightness level as a function of a first level of ambient light; controlling the brightness of the display to a second brightness level as a function of a second level of ambient light, the second level of ambient light being substantially changed from the first level of ambient light; and without a substantial change in the ambient light level, subsequently controlling the brightness of the display to a third brightness level. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A portable electronic device comprising:
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a display having a controllable brightness; a light sensor that generates ambient light signals as a function of ambient light levels; a memory; and a processor that; receives the ambient light signals; determines levels of ambient light as a function of the ambient light signals; stores in memory at least one level of ambient light; controls the brightness of the display to a first brightness level as a function of a first level of ambient light; controls the brightness of the display to a second brightness level as a function of a second level of ambient light, the second level of ambient light being substantially changed from the first level of ambient light; and without a substantial change in the ambient light level, subsequently controls the brightness of the display to a third brightness level. - View Dependent Claims (8, 9, 10, 11)
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12. A method comprising:
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measuring a length of time that an ambient light level has been without substantial change; experiencing a wake up event; and subsequently controlling a brightness of a display of a portable electronic device to a brightness level as a function of a level of ambient light and as a function of the length of time. - View Dependent Claims (13, 14)
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15. A non-transitory computer program product comprising a computer readable medium embodying program code executable by a processor that cause the processor to:
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control a brightness of a display of a portable electronic device to a first brightness level as a function of a first level of ambient light; control the brightness of the display to a second brightness level as a function of a second level of ambient light, the second level of ambient light being substantially changed from the first level of ambient light; and subsequently control the brightness of the display to a third brightness level without a substantial change in the ambient light level. - View Dependent Claims (16)
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Specification