Method and apparatus for adjusting a brightness of a display screen
AssigneeLG Electronics Inc.
InventorSung Jin Park
Life of this patent
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Abstract
A method and apparatus are provided for adjusting the brightness of a display screen, such as an LCD screen. The method and apparatus are capable of reducing power consumption of the display in a system by determining whether a video intensive operation is being performed on the basis of various parameters such as a CPU usage, operation key words, operation of memory devices such as a hard disk or a CD-ROM device, etc. The method and apparatus adjust the brightness of the display screen an appropriate amount in accordance with the machine's use without user input, and without interfering with video intensive processes.
Claims49
A method for adjusting a brightness of a liquid crystal display screen of a system, the method comprising:
- determining whether there are user signal inputs;
- switching the system into an IDLE mode if there are no user signal inputs;
- determining central processing unit usage when in the IDLE mode;
- and
- adjusting the brightness of the liquid crystal display screen when in the IDLE mode based on central processing unit usage.
A method for reducing electrical power consumed by a central processing unit controlled display screen, the method comprising:
- determining central processing unit activity;
- and
- dimming a brightness of the display screen when the central processing unit activity falls below a minimum threshold.
A computer-readable medium having stored thereon a sequence of instructions which, when executed by a processor, cause the processor to perform the steps of:
- monitoring a system for certain display related processes;
- maintaining the brightness of a display if the certain display related processes are running;
- and
- reducing the brightness of a display if the certain display related processes are not running.
An apparatus for reducing electrical power consumed by a central processing unit controlled display screen the apparatus comprising:
- means for determining central processor unit activity;
- and
- means for dimming a brightness of the display screen when the central processing unit activity falls below a minimum threshold.
An apparatus for reducing the brightness of a display screen in a system in the absence of certain display related processes, the apparatus comprising:
- means for monitoring a system for certain display related processes;
- means for maintaining the brightness of a display if certain display related processes are running;
- and
- means for reducing the brightness of a display if certain display related processes are not running.
A method for adjusting a brightness of a display screen of a system, the method comprising:
- monitoring the system for display related processes;
- maintaining the brightness of a display if display related processes are running;
- and
- reducing the brightness of a display if display related processes are not running.
The method according to claim45, wherein the read-only memory device comprises a DVD.
Dependencies are inferred from the claim text.