Dynamic brightness range for portable computer displays based on ambient conditions
First Claim
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1. A portable computer system comprising:
- a processor coupled to a bus;
a light sensor coupled to said bus and for providing an ambient light information signal to said processor;
a lighted display device coupled to said bus and for providing a visual display;
a display controller coupled to said bus and for controlling said visual display;
a data storage device coupled to said bus and comprising preconfigured dynamically adjustable brightness range setting data for implementing a plurality of different simultaneously stored ranges, wherein each stored range of said plurality of stored ranges comprises plurality of brightness values; and
wherein said processor automatically selects a stored range of said plurality of stored ranges based on said ambient light information signal from said light sensor for use in dynamic brightness control, and wherein at least one user selectable brightness setting remains unchanged in response to said automatic selection by said processor.
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Abstract
A portable computer system that comprises adjustable brightness settings and brightness control for providing improved user readability and prolonged life of the display screen. The main processor can change the brightness range settings in response to a change in ambient light conditions. The user can also control the brightness of the display. The time required to implement a brightness change can be set to a value which can be configured by the user.
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Citations
32 Claims
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1. A portable computer system comprising:
- a processor coupled to a bus;
a light sensor coupled to said bus and for providing an ambient light information signal to said processor;
a lighted display device coupled to said bus and for providing a visual display;
a display controller coupled to said bus and for controlling said visual display;
a data storage device coupled to said bus and comprising preconfigured dynamically adjustable brightness range setting data for implementing a plurality of different simultaneously stored ranges, wherein each stored range of said plurality of stored ranges comprises plurality of brightness values; and
wherein said processor automatically selects a stored range of said plurality of stored ranges based on said ambient light information signal from said light sensor for use in dynamic brightness control, and wherein at least one user selectable brightness setting remains unchanged in response to said automatic selection by said processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a processor coupled to a bus;
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14. A portable electronic device comprising:
- a processor coupled to a bus;
a light sensor coupled to said bus and for providing ambient light information signal to said processor;
a lighted display device coupled to said bus and for providing a visual display;
a display controller and for controlling said visual display;
a data storage device coupled to said bus and comprising a plurality of simultaneously stored preconfigured dynamically adjustable brightness ranges, wherein each stored range of said plurality of stored ranges comprises a plurality of brightness values; and
wherein said processor selects a brightness range of said stored brightness ranges based on preset range configuration data and said ambient light information signal from said light sensor for use in dynamic brightness control, and wherein at least one user selectable brightness setting remains unchanged in response to said automatic selection by said processor. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- a processor coupled to a bus;
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27. In a portable electronic device, a method of responding to a change in ambient light conditions comprising:
- a) detecting said change in ambient light conditions and generating a signal in response thereto;
b) in response to said signal, a processor of said portable electronic device selecting a brightness range from a plurality of simultaneously stored brightness ranges based on preconfigured range information for use in dynamic brightness control; and
c) implementing said selected brightness range to alter a brightness of a display device of said portable electronic device, wherein each stored brightness range of said plurality of stored brightness ranges comprises a plurality of brightness values, and wherein at least one user selectable brightness setting remains unchanged in response to said automatic selection by said processor. - View Dependent Claims (28, 29, 30, 31, 32)
- a) detecting said change in ambient light conditions and generating a signal in response thereto;
Specification