Display, method for controlling power supply thereof and computer

Abstract

The invention provides a display, a method for controlling a power supply thereof and a computer. The displayer comprises a display screen, a display interface, a power supply conversion module and adisplay control circuit, wherein the display screen is used for displaying images; the display interface is used for sending an electrical level control signal according to an electrical signal outputby a signal output module of a host computer; the power supply conversion module is used for converting current from an external power supply and turning on and off the power supply circuit of the display according to the electrical level control signal; and the display control circuit is used for supplying power for the display screen when the power supply circuit of the display is turned on andcontrolling the display of the display screen according to the electrical signal output by the signal output module. The method has the advantages of controlling the main power supply of the displaywhen the host computer of equipment is turned off or in dormancy or the display is unconnected with the host computer of the equipment and conveniently, individually and actively controlling the powersupply of the display to realize energy conservation under the condition that the display is connected with alternating current and operates normally.

Description

technical field [0001] The invention relates to equipment energy-saving technology, in particular to a display, a method for controlling the power supply of the display and a computer. Background technique [0002] Existing devices with displays, such as computer displays, are always in a standby state after being connected to an alternating current (AC) power source, and thus have a standby power consumption. [0003] Although some manufacturers have developed an energy-saving display, when the display does not detect a video signal, such as a video image array (VGA, Video Graphics Array), it will automatically turn off the main power of the display to reduce power consumption. . [0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: relying on the method of detecting video signals to realize power saving, it needs to spend a lot of money on the circuit for detecting video signals, and...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a display power control device and application equipment, which are used to solve the problem in the prior art that when realizing energy saving of the display, it is necessary to spend a large cost on the circuit of the display, and it is not convenient for the computer to actively control the display. Defects of power on and off

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