KR100590073B1 - Plasma display device and power control method thereof - Google Patents

Abstract

The present invention relates to a plasma display device and a power control method thereof. In the power-off state, the battery power is supplied only to the sensor unit, the signal change unit, and the master switch driver. It converts the signal, converts the sound signal into an electrical signal, and converts the electrical signal into kinetic energy to turn on the master switch. When the master switch is turned on, the power supply unit generates standby power and main power from an external power supply and supplies them to each part of a predetermined system. In this way, the power supply can be easily turned on.

PDP, power, off, standby

Description

Plasma display device and power control method thereof {PLASMA DISPLAY DEVICE AND POWER CONTROL METHOD THEREOF}

1 is a configuration diagram of a plasma display device according to an exemplary embodiment of the present invention.

2 is an operation flowchart of a plasma display device according to an exemplary embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel (PDP), and more particularly to a method for controlling a power supply of a plasma display device.

Plasma display panels, which are currently commercialized, generate a discharge in each pixel, and excite a fluorescent material coated on the inner wall of the pixel with ultraviolet rays generated by the discharge to realize a desired color.

Conventionally, standby power has always been supplied to a microcomputer, a memory used for image processing, a flash memory, and an analog / digital converter so that a power-on signal from a remote controller can be immediately operated even when the main power is turned off. Then, when the main power on signal was input, power was supplied to the remaining devices.

To completely turn off the power, the master switch must be turned off. In this state, the mouse switch must be controlled by hand.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a plasma display device and a power supply control method thereof that can conveniently control the control of a master switch.

According to an aspect of the present invention, a plasma display device includes: a sensor unit configured to output a sound signal corresponding to a power-on signal of an external remote controller; A signal changer for converting a sound signal from the sensor into an electrical signal; A first switch outputting a first power control signal to supply standby power; And a switch driver to turn on the first switch by changing an electrical signal of the signal changer into kinetic energy.

The plasma display device may include a battery configured to supply power to the sensor unit, the signal change unit, and the switch driver; A microcomputer that outputs a control signal to supply a main power when the standby power is applied; A second switch configured to output a second power control signal to supply main power according to the control signal of the microcomputer; The apparatus may further include a power supply device configured to supply standby power to the microcomputer according to the power control signal of the first switch and to supply the standby power according to the second power control signal of the second switch.

The plasma display device includes a plasma display panel including a plurality of address electrodes, a plurality of scan electrodes, and a sustain electrode; A controller configured to receive an image signal and generate an address driving signal, a scan electrode driving signal, and a sustain electrode driving signal; An address data driver for applying a voltage corresponding to the address electrode driving signal to the address electrode; The semiconductor device may further include a scan electrode driver for applying a voltage corresponding to the scan electrode driving signal to the scan electrode and a sustain electrode driver for applying a voltage corresponding to the sustain electrode driving signal to the sustain electrode.

The power control method of the plasma display device according to an aspect of the present invention for solving this problem,

A power control method of a plasma display device for receiving a power supply and generating a standby power supply and a main power supply to a corresponding device, the method comprising: converting a power-on signal of an external remote controller into a sound signal; Converting a sound signal into an electrical signal; Turning on the first switch by converting the electrical signal into kinetic energy; Outputting a control signal such that the first switch supplies power.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification. When a part is connected to another part, this includes not only a direct connection but also a connection between other components in between.

A plasma display device and a power control method thereof according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a plasma display device according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a plasma display device according to an exemplary embodiment of the present invention includes a plasma display panel 100, a controller 200, an address electrode driver 300, and a scan electrode driver (hereinafter referred to as a “Y electrode driver”). 400, a sustain electrode driver (hereinafter referred to as an 'X electrode driver') 500 and a power control unit 600.

The plasma display panel 100 includes a plurality of address electrodes A1-Am arranged in a column direction, a plurality of sustain electrodes (hereinafter referred to as 'X electrodes') (X1-Xn) and scans arranged in a row direction. Electrodes (hereinafter referred to as 'Y electrodes') Y1-Yn. The X electrodes X1-Xn are formed corresponding to the respective Y electrodes Y1-Yn, and generally have one end connected in common to each other. The plasma display panel 100 includes a substrate (not shown) on which the X and Y electrodes X 1 -X n and Y 1 -Y n are arranged, and a substrate (not shown) on which the address electrodes A 1 -A m are arranged. The two glass substrates are disposed to face each other with the discharge space therebetween so that the Y electrodes Y1-Yn and the address electrodes A1-Am and the X electrodes X1-Xn and the address electrodes A1-Am are orthogonal to each other. At this time, the discharge space at the intersection of the address electrodes A1-Am and the X and Y electrodes X1-Xn and Y1-Yn forms a discharge cell. The controller 200 receives the image data and outputs an address driving signal, an X electrode driving signal, and a Y electrode driving signal. The address electrode driver 300 receives an address electrode driving signal from the controller 200 and applies a display data signal for selecting a discharge cell to be displayed to each address electrode A1-Am. The X electrode driver 500 receives an X electrode driving signal from the controller 200 and applies a driving voltage to the X electrodes X1 to Xn. The Y electrode driver 400 receives the Y electrode driving signal from the controller 200 and applies a driving voltage to the Y electrodes Y1-Yn.

The power control unit 600 includes a sound sensor 610, a signal changing unit 611, a switch driver 612, a master switch 640, a power supply unit 620, a microcomputer 630, and a power switch 650. . The sound sensor 610 outputs sound energy to the signal changer 611 when the power-on signal of the external remote controller 700 is input. The signal changing unit 611 converts sound energy into an electrical signal and outputs the electrical signal. The switch driver 612 may be implemented as a device such as a stepper motor or a general motor. When the electric signal is input from the signal changer 611, the switch driver 612 drives the master switch 640. The master switch 640 outputs a power control signal so that the power supply unit 620 outputs standby power. When power is supplied, the microcomputer 630 transmits a control signal to supply the main power to the power switch, and the power switch outputs the power control signal to the power supply 620. The power supply unit 620 receives an external power source and generates and outputs a standby power source 621 and a main power source 622, and the power supply unit 620 supplies the standby power source microcomputer 630 under the control of the master switch. The main power is supplied to the whole system under the control of the power switch. Here, the voltage level of the standby power supply and the voltage level of the main power supply may be the same or different, and the main power supply may include a power supply having a plurality of voltage levels.

The operation of the plasma display device according to the embodiment of the present invention having such a configuration will now be described in detail.

Power of the battery 660 is always supplied to the sound sensor 610, the signal changer 611, and the switch driver 612, and the remote controller 700 is also supplied with power by its own battery.

In this state, when the user operates the power button of the remote controller 700 as needed, the remote controller 700 outputs the corresponding control signal.

Then, the sound sensor 610 outputs a sound corresponding to the control signal of the remote controller (S210), and the signal changing unit 611 converts the sound signal into an electrical signal (S220).

Then, the switch driver 612 converts an electrical signal into kinetic energy to turn on the master switch 640 (S230), and the switch driver 612 is implemented by a stepper motor, a general motor, or various other means. It is possible.

Thereafter, the master switch 640 outputs a control signal for supplying the standby power supply 621 to the power supply unit 620, and the power supply unit 620 supplies the standby power supply 621 to the microcomputer 630.

The microcomputer 630 transmits a control signal to supply the main power to the power switch, and the power switch 650 outputs a power control signal to the power supply 620.

Then, the power supply unit 620 generates the main power source 622 and supplies the entire system such as the control unit 200, the address electrode driver 300, the X electrode driver 500, and the Y electrode driver 400 (S240). ).

 Then, the controller 200 gamma-corrects the image signal to match the characteristics of the plasma display panel to generate the X electrode driving signal, the Y electrode driving signal, and the address electrode driving signal, and the address electrode driving unit 300 generates the address electrode driving signal. Is applied to each of the address electrodes A1-Am to receive and select a discharge cell to be displayed. The X electrode driver 500 receives the X electrode driving signal to apply a driving voltage to the X electrodes X1 to Xn, and the Y electrode driving unit 400 receives the Y electrode driving signal to receive the Y electrode Y1 to Yn. Is applied to the driving voltage.

Then, data is displayed on the plasma panel 100 (S250).

According to the exemplary embodiment of the present invention, power is supplied only to the sound sensor 610, the signal changer 611, and the switch driver 612 by the battery 660 in the power off state, thereby reducing power consumption, thereby saving energy. can do.

And, if necessary, the sound sensor 610 may be configured to be embedded in the remote control, various modifications are possible.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

According to the configuration of the present invention, it is possible to provide a plasma display device and a power control method thereof, in which the user can conveniently turn on the power only by controlling the remote controller without the user directly controlling the master switch by hand.

Claims (6)

A sensor unit for outputting a sound signal corresponding to a power-on signal of an external remote controller; A signal changer for converting a sound signal from the sensor into an electrical signal; A first switch outputting a first power control signal to supply standby power; And a switch driver to turn on the first switch by changing an electrical signal of the signal changer into kinetic energy. The method of claim 1, A battery supplying power to the sensor unit, the signal change unit, and the switch driver; A controller configured to output a control signal to supply main power when the standby power is applied; A second switch outputting a second power control signal to supply main power according to a control signal of the controller; And a power supply for supplying the standby power to the controller according to the first power control signal of the first switch and supplying the main power according to the second power control signal of the second switch. Device. The method according to claim 1 or 2, And the switch driver is a step motor. As a power control method of a plasma display device that receives power and generates standby power and main power and supplies the same to a corresponding device. Converting a power-on signal of an external remote controller into a sound signal; Converting a sound signal into an electrical signal; Turning on the first switch by converting the electrical signal into kinetic energy; And outputting a control signal to supply power to the first switch. The method of claim 4, wherein And sequentially supplying standby power and main power to the system according to the control signal of the first switch. The method of claim 5, In the step of sequentially supplying the standby power and the main power supply, the first switch is turned on and the standby power is supplied, and then the second switch is turned on to supply the main power. Way.

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