WO2002086854A1

WO2002086854A1 - Plasma display panel drive method and plasma display apparatus

Info

Publication number: WO2002086854A1
Application number: PCT/JP2002/003827
Authority: WO
Inventors: Koichi Oura
Original assignee: Sony Corporation
Priority date: 2001-04-18
Filing date: 2002-04-17
Publication date: 2002-10-31
Also published as: JP2002311889A

Abstract

It is possible to prevent display of an image of deteriorated quality, to prevent sticking of an image when a still image is displayed, and to reduce useless power consumption. A PDP (plasma display panel) (10) is an AC discharge memory operation type. A video signal processor (31) detects a period having no input video signal (blanking period when the input video signal is blanked, and a no-signal period when the input video signal is in a no-signal state) and during that period, outputs a drive stop signal to a timing pulse generator (33) so as to stop operation of a sustaining electrode driver (35) and a common pulse generator (36). After stopping generation of various drive pulses, a power cut-off signal is output to a power supply block (40) so as to cut off power to the sustaining electrode driver (35) and the common pulse generator (36). The same is performed when an image erase instruction signal is input by an image erase operation by a user.

Description

Description '' Plasma display panel driving method and plasma display device

The present invention relates to a method for driving a plasma display panel used as a display device such as a TV (television) receiver or a personal computer (PC), and a plasma display device including the plasma display panel and a driving device unit. . Background art

Plasma display panels (short for "P1 asma Display Panel 1"; hereinafter, plasma display panels are referred to as PDPs) can have a thin structure, can easily realize a large screen, and have a flickering display. It has many features such as high display contrast, high response speed, self-luminous type and multi-color display, and has been attracting attention as a display device for TV receivers and PCs. ing.

Depending on the operation method, the PDP is an AC discharge type, in which the electrodes are covered with a dielectric, and indirectly operates in an AC discharge state, and a DC PDP, which exposes the electrodes to the discharge gas space and operates in a DC discharge state They are roughly classified into discharge type. Furthermore, the AC discharge type PDP has two driving methods: a memory operation type that uses the memory properties of the discharge cells and a refresh operation type that does not use the memory properties.

[Configuration of AC discharge memory operation type PDP] FIG. 4 shows a schematic plan structure of an AC discharge memory operation type PDP, and FIG. 5 shows a schematic sectional structure of one display cell (pixel portion).

The PDP 10 has scanning electrodes S c 1, S c 2... S cm as row electrodes and sustain electrodes S ul, S u 2... Dl, D2, D3... Dn are formed, and the display cells 1 are arranged in a dot matrix over m rows and n columns.

As shown in FIG. 5, the cross-sectional structure is such that a transparent scan electrode 12 made of, for example, ITO (Indium T in Oxide) and a transparent Electrodes 13 are formed parallel to each other, and trace electrodes 14 and 15 are formed on scan electrode 12 and sustain electrode 13 to reduce electrode resistance, respectively. A dielectric layer 16 is formed on the front insulating substrate 11 so as to cover the sustain electrode 13 and the trace electrodes 14 and 15, and a magnesium oxide is formed on the dielectric layer 16 to protect this from discharge. Thus, a protective layer 17 is formed.

A data electrode 22 is formed on a rear insulating substrate 21 made of, for example, glass so as to be orthogonal to the scanning electrode 12 and the sustain electrode 13 on the front insulating substrate 11, and covers the data electrode 22. A dielectric layer 23 is formed on the back insulating substrate 21, and a phosphor layer 24 that emits visible light upon irradiation with ultraviolet light is formed on the dielectric layer 23.

The front insulating substrate 11 and the rear insulating substrate 21 are arranged so that the protective layer 17 on the front insulating substrate 11 and the phosphor layer 24 on the rear insulating substrate 21 face each other, and a discharge gas space between the two. 2 is filled with a gas such as helium, neon, xenon, or a discharge gas 3 composed of a mixed gas thereof. However, although omitted in FIG. 5, the discharge gas space 2 is separated into columns by partitions in the row direction (left-right direction in the figure) of FIG. Then, as described below, when the discharge gas 3 is discharged in the discharge gas space 2, ultraviolet rays 4 are generated from the discharge gas 3, and the ultraviolet rays 4 irradiate the phosphor layer 24 and are visible from the phosphor layer 24. Light 5 is generated, and display cell 1 is displayed.

In a certain display cell 1, when a pulse voltage exceeding the discharge threshold voltage is applied between the scan electrode 12 and the data electrode 22, the dielectric layers 16 and 2 on both sides are applied according to the polarity of the pulse voltage. Positive and negative charges are attracted to the surface of 3, causing charge accumulation.

The equivalent internal voltage due to the accumulation of the charges, that is, the wall voltage, has a polarity opposite to that of the applied pulse voltage, so that the effective voltage inside the cell decreases as the discharge grows, and the pulse voltage becomes a constant value. Even if the discharge is maintained, the discharge cannot be maintained, and the discharge finally stops.

Thereafter, when a sustain discharge pulse, which is a pulse voltage having the same polarity as the wall voltage, is applied between the scan electrode 12 and the sustain electrode 13 of the same display cell, the wall voltage is superimposed as an effective voltage. However, even if the voltage amplitude of the sustain discharge pulse is small, the effective voltage inside the cell can exceed the discharge threshold and discharge.

Therefore, the discharge can be maintained by continuously applying the sustain discharge pulse between scan electrode 12 and sustain electrode 13 alternately. This function is the above-mentioned memory function. Also, apply a wide low-voltage pulse that neutralizes the wall voltage or a narrow erase pulse that is about the same as the sustain discharge pulse to the scan electrode 12 or the sustain electrode 13. Thus, the sustain discharge can be stopped.

[Method of driving AC discharge memory operation type PDP]

FIG. 6 shows a specific method of driving the PD P 10 as described above, which is described in the document "S OC I ETY FOR I NFORMAT I ON DISPL. AY I NTERNAT I ONAL S YMP OSI UM DI GE ST OF TE CHN I CAL PAP ES VOLUME XX VI. OCT.

In this method, a subfield, which is one cycle of driving, is divided into a preliminary discharge period, a write discharge period, and a sustain discharge period.

The preliminary discharge period is a period for generating active particles and wall charges in the discharge gas space 2 in order to obtain stable write discharge characteristics during the subsequent write discharge period. As shown in the sustain electrode drive waveform, after applying the preliminary discharge pulse P p for discharging all the display cells 1 simultaneously to all the sustain electrodes S u 1, S u 2 The scan electrode drive waveforms Ws1, Ws2 ', Wsm are generated by the predischarge pulse Pp common to all scan electrodes Sc1, Sc2 A pre-discharge erase pulse Ppe for extinguishing the charge that inhibits the write discharge and the sustain discharge among the generated wall charges is applied.

That is, first, a pre-discharge pulse Pp of voltage Vp is applied to the sustain electrodes Su 1 to Sum to generate pre-discharge in all the display cells 1 and then to the scan electrodes S c1 to S cm A pre-discharge erasing pulse P pe of voltage V pe is applied to cause an erasing discharge in all display cells 1 to erase the wall charges deposited by the pre-discharge pulse P p.

Next, during the write discharge period, as shown by the scan electrode drive waveforms Ws1, Ws2, Wsm, the scan of the voltage Vw is sequentially performed on the scan electrodes Scl, Sc2 ', Scm. While applying the pulse Pw, as shown as the data electrode drive waveform, in synchronization with this scan pulse Pw, only the data electrode Di (1≤i≤n) of the display cell to be displayed is selectively selected. And the voltage Vd data sheet The write pulse Pd is applied to generate a write discharge in a display cell to be displayed, thereby generating wall charges.

The scan base pulses P bw in the scan electrode drive waveforms Ws 1 to W sm are applied to the scan electrodes Sc 1 to S cm during the write discharge period other than the scan pulse Pw, respectively. Is set to a voltage value at which no discharge occurs between the data electrode and the scan electrode to which the scan base pulse P bw is applied.

Next, in the sustain discharge period, as shown in the sustain electrode drive waveform, the sustain discharge pulse P c of the negative voltage V s is commonly applied to all the sustain electrodes S ul, Su 2... S um. And the scan electrode driving waveform Ws 1, Ws 2... "W sm, and the sustain discharge pulse P c is commonly applied to all the scan electrodes S cl, S c 2... S cm. The sustain discharge is repeated a predetermined number of times in a display cell that has undergone a write discharge during the write discharge period by applying a sustain discharge pulse P s of negative voltage V s with a 180 ° phase delay Fig. 6 shows a case where sustain discharge is repeated eight times by generating four sustain discharge pulses Pc and Ps, respectively.

Regarding the luminance gradation, as shown in Fig. 7, one field is divided into a plurality of subfields having different time widths, and the sustain discharge is repeated in the sustain discharge period shown in Fig. 6 for each subfield. The ratio of the number of times (the number of sustain discharge pulses P c and P s) is doubled in order, such as 1: 2: 4: 8: 16: 3 2. The gray scale is obtained by selecting the subfield in which the write discharge and the sustain discharge are performed in accordance with.

For example, if video data is represented by 6 bits, as shown in FIG. 7, one field is divided into six subfields from the first subfield card to the sixth subfield. When the video data is "101001", write discharge and sustain discharge are performed in the first subfield, the fourth subfield, and the sixth subfield. Assuming that the total number of sustain discharges in the field is 41 k (k is the number of repetitions of the sustain discharge in the first subfield where the number of repetitions of the sustain discharge is the least during the sustain discharge period), the video data is “0 1 1 1 0 1 ", write discharge and sustain discharge are performed in the first subfield, third subfield, fourth subfield and fifth subfield, and the total number of sustain discharges in one field is 29 k. I do. As a result, a luminance gradation corresponding to the value of the video data is obtained.

To display a multi-color image, for example, the phosphor layer 24 shown in FIG. 5 is applied to each of the display cells 1 in the row direction in FIG. As light-emitting elements, red, green, and blue display cells are cyclically formed, and the red, green, and blue display cells are selected in accordance with the values of the red, green, and blue primary color data during the write discharge period of the subfield. A data write pulse is applied to the data electrodes of the display cells.

[Conventional plasma display device]

FIG. 8 shows a conventional plasma display device for driving an AC discharge memory operation type PDP 10 as shown in FIGS. 4 and 5 by the method as shown in FIGS. 6 and 7. .

This plasma display device includes a PDP 10, a drive unit 30, and a power supply unit 40. The drive unit 30 includes a video signal processing unit 31, a video data generation unit 32, and a timing unit. It comprises a pulse generator 33, a sustain electrode driver 35, a common pulse generator 36, a scan pulse generator 37, and a data electrode driver 38. The video signal processing unit 31 generates a video signal to be supplied to the video data generation unit 32 from the input video signal, extracts horizontal and vertical synchronization signals, and generates a reference clock. .

In the timing pulse generator 33, the sustain electrode driver 35, the common pulse generator 36, the scan pulse generator 37, and the video data generator 32 use the synchronization signal and clock from the video signal processor 31 , And various evening pulses to be supplied to the data electrode drive unit 38 are generated.

In the sustain electrode driving section 35, based on the timing pulse from the timing pulse generating section 33, the pre-discharge pulse P p during the pre-discharge period and the pre-discharge pulse P p during the sustain discharge period as shown in the sustain electrode driving waveform in FIG. The sustain discharge pulse Pc is generated and applied to each of the sustain electrodes 13 (Sul-Surn) in common.

In the common pulse generator 36, based on the timing pulse from the timing pulse generator 33, as shown as a part of the scan electrode drive waveforms Wsl to Wsm in FIG. A discharge erase pulse Ppe and a sustain discharge pulse Ps in the sustain discharge period are generated, and are applied to the scan electrodes 12 (Scl to Scm) in common.

The scan pulse generator 37 receives the scan pulse during the write discharge period based on the timing pulse from the timing pulse generator 33, as shown as a part of the scan electrode drive waveforms Wsl to Wsm in FIG. Pw and a scanning base pulse P bw are generated and sequentially applied to each scanning electrode 12 (Scl to Scm).

In the video data generator 32, based on the video signal from the video signal processor 31 and the evening pulse from the timing pulse generator 33, the data shown in FIG. Video data for generating the write pulse Pd is obtained and supplied to the data electrode driver 38. In the data electrode drive section 38, based on the video data from the video data generation section 32 and the timing pulse from the timing pulse generation section 33. As shown in FIG. During the write discharge period of the subfield selected according to the value of the video data, a data write pulse Pd is generated and selectively applied to the data electrodes 22 (D1 to Dn).

The sustain electrode driver 35, the common pulse generator 36, the scan pulse generator 37, and the data electrode driver 38 are used for driving the PDP 10 as described above. Voltage power is supplied.

In the plasma display device described above, when the input video signal is switched, for example, when the input video signal is switched from a video signal obtained by receiving a TV broadcast to a video signal output from a PC, or when the video signal is When switching from the non-input state to the input state, the horizontal and vertical scanning frequencies temporarily change, so that the picture flows on the PDP 10 screen. Missing images may be displayed. Therefore, when the input video signal is switched or when the video signal is switched from the non-input state to the input state, the input video signal is blanked and the data electrode driving unit 38 outputs the data write pulse P d , And no charge is written into the display cell 1 from the electrode 22 (D1 to Dn).

However, in this case, although no image is displayed on the PDP 10, the sustain electrode drive unit 35 and the common pulse generation unit 36 continue to operate and generate the sustain discharge pulses Pc and Ps. Since power generation continues, wasteful power is consumed by circuit switching in the sustain electrode drive unit 35 and the common pulse generation unit 36, etc.If the video signal is in a non-signal state for a long time, large power is wasted. . In satellite digital broadcasting, audio information such as music is distributed as broadcast programs, and still images such as EPG (Electronic Program Guide) may be displayed as images. .

In this case, in a receiver using the PD P 10 as a display device, when a still image is displayed on the PDP 10, the phosphor layer 24 that continues to emit light rapidly deteriorates, and as a result, an image is burned on the display screen. I will.

As a countermeasure for this, a method of blanking the input video signal and erasing the image is adopted in the same way as when switching the input video signal or when switching from a state where no video signal is input to a state where the video signal is input. I have.

However, even in this case, since the sustain electrode driving unit 35 and the common pulse generating unit 36 continue to operate, wasteful power is consumed by the sustain electrode driving unit 35 and the common pulse generating unit 36 and the image is erased. Long periods of time waste large amounts of power.

Therefore, the present invention is designed to reduce unnecessary power consumption. Disclosure of the invention

The plasma display panel driving method according to the first invention includes:

A driving method of a plasma display panel for causing a display cell to emit light by repeatedly performing a sustain discharge by a sustain discharge pulse after a write discharge by an overnight write pulse,

In particular, when an input video signal is not present, after the generation of the data write pulse and the sustain discharge pulse is stopped, the power supply of a drive unit that generates the data write pulse and the sustain discharge pulse is cut off. It is. The driving method of the plasma display panel according to the second invention is as follows.

A method of driving a plasma display panel for causing a display cell to emit light by repeatedly performing a sustain discharge by a sustain discharge pulse after a write discharge by a data write pulse,

In particular, after the generation of the data write pulse and the sustain discharge pulse is stopped by an external image deletion instruction, the power supply of the drive unit that generates the data write pulse and the sustain discharge pulse is cut off. Things.

In the plasma display panel driving method according to the first aspect of the present invention, it is possible to prevent an image of poor quality from being displayed on the plasma display panel and reduce unnecessary power consumption. In the plasma display panel driving method according to the second aspect of the present invention, it is possible to prevent burn-in of an image due to display of a still image on the plasma display panel and reduce unnecessary power consumption. . BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing one embodiment of the plasma display device of the present invention.

FIG. 2 is a diagram showing one embodiment of a TV receiver to which the present invention is applied.

FIG. 3 is a diagram showing an example of a drive control processing routine executed by the CPU of the TV receiver in FIG.

FIG. 4 is a diagram showing a schematic plan structure of an AC discharge memory operation type PDP. FIG. 5 is a diagram showing a schematic cross-sectional structure of one display cell of an AC discharge memory operation type PDP.

FIG. 6 is a diagram showing an example of a method of driving an AC discharge memory operation type PDP.

FIG. 7 is a diagram showing an example of a method for realizing a luminance gradation of an AC discharge memory operation type PDP.

FIG. 8 is a diagram showing an example of a conventional plasma display device. BEST MODE FOR CARRYING OUT THE INVENTION

[Embodiment of Plasma Display Apparatus and Driving Method ... FIG. 1] FIG. 1 shows an embodiment of a plasma display apparatus according to the present invention. And a power supply unit 40. PDP 10 is an AC discharge memory operation type PDP as shown in FIGS. 4 and 5, and is driven by a method as shown in FIGS. 6 and 7.

The drive unit 30 includes a video signal processing unit 31, a video data generation unit 32, an evening pulse generation unit 33, a sustain electrode drive unit 35, a common pulse generation unit 36, a scan pulse generation unit 37, And a data electrode driving unit 38.

The video signal processing unit 31 receives an input video signal and a picture deletion instruction signal obtained by a user's picture deletion operation.

The video signal processing unit 31 generates a video signal to be supplied to the video data generation unit 32 from the input video signal, extracts horizontal and vertical synchronization signals, generates a reference clock, The period during which the input video signal does not exist (the blanking period when the input video signal is blanked and the non-signal period when the input video signal is in a no-signal state) is detected. During this period, a drive stop signal and a power cutoff signal are output.

In addition, the video signal processing unit 31 similarly outputs a drive stop signal and a power cutoff signal when the image deletion instruction signal is input.

The timing pulse generator 33 generates the sustain electrode driver 35, the common pulse generator 36, the running pulse generator 37, and the video data generator 3 from the synchronization signal and clock from the video signal processor 31. 2, and various kinds of evening pulses to be supplied to the data electrode driving unit 38 are generated.

Furthermore, in this embodiment, when the drive stop signal is output from the video signal processing unit 31 to the timing pulse generation unit 33, the timing pulse generation unit 33 The operation of the section 36, the scan pulse generation section 37, and the data electrode drive section 38 is stopped, and the generation of various drive pulses as shown in FIG. 6 is stopped.

The sustain electrode drive section 35, the common pulse generation section 36, the scan pulse generation section 37, and the data electrode drive section 38 each have various drive pulses based on the timing pulse from the timing pulse generation section 33. However, when the drive stop control is performed by the timing pulse generator 33, the operation is stopped and the generation of the drive pulse is stopped.

Furthermore, high voltage power is supplied from the power supply unit 40 to the sustain electrode drive unit 35, the common pulse generation unit 36, the scan pulse generation unit 37, and the data electrode drive unit 38. When a power cutoff signal is output from the video signal processing unit 31 to the power supply unit 40, the power is cut off.

That is, in this embodiment, on the other hand, when the video signal processing unit 31 detects that there is no input video signal, the video signal processing unit 31 outputs a drive stop signal and a power cutoff signal to maintain Electrode driver 35, common pulse generator 36, scan pulse generator 37, and data electrode The driving section 38 stops the operation and stops the generation of the driving pulse, and the sustain electrode driving section 35, the common pulse generating section 36, the scanning pulse generating section 37, and the data electrode driving section 38 Is shut off.

Therefore, when the input video signal is switched or when the video signal is switched from a non-input state to an input state, a poor-quality image is not displayed on the PDP 10 and unnecessary power is consumed. There is no consumption.

Furthermore, in this embodiment, on the other hand, when a still image is displayed on the PDP 10, the user performs a blanking operation, so that the video signal processing unit is operated in the same manner as when the input video signal does not exist. 31 The drive stop signal and power cutoff signal are output from 1 and the sustain electrode drive unit 35, common pulse generator 36, scan pulse generator 37, and data electrode drive 38 stop operating. While the generation of the driving pulse is stopped, the power supply of the sustain electrode driving unit 35, the common pulse generating unit 36, the scanning pulse generating unit 37, and the data electrode driving unit 38 is cut off.

Therefore, image burn-in due to the display of a still image on the PDP 10 is prevented, and unnecessary power is not consumed.

If the power supply of the sustain electrode drive unit 35 and the common pulse generation unit 36 is shut off, the operation of the sustain electrode drive unit 35 and the common pulse generation unit 36 will be stopped, and the generation of the drive pulse will be stopped. Can be. However, it takes some time for the power supply to be completely cut off, and during that time, the sustain electrode drive unit 35 and the common pulse generation unit 36 and the like are in an unstable operation state. In contrast, by directly stopping the operations of the sustain electrode drive unit 35 and the common pulse generation unit 36 as described above, an unstable operation state does not occur.

[Embodiment as TV receiver ... FIGS. 2 and 3] FIG. 2 shows a case where the present invention is applied to a TV receiver capable of receiving satellite digital broadcasting.

In this TV receiver, a satellite digital broadcast signal received by a parabolic antenna 61 including a converter is selected by a digital tuner 62. From the digital tuner 62, an MP EG (Moving Picture Ex perts G) is transmitted. roup) The TS (Transport Stream) of the system is output.

The TS is separated into information such as a video PES (Packetized Elementary Stream), an audio PES, a data signal of the overnight broadcast, and EPG information in the demultiplexer 63, and the The PES is decoded by the video decoder 64, the audio PES is decoded by the audio decoder 6.5, the data signal of the data broadcast is decoded by the data decoder 66, and information such as EPG information is taken into the control unit 80. .

The video signal output from the video decoder 64 and the data signal output from the data decoder 66 are synthesized by the synthesis processing unit 67, and the output of the synthesis processing unit 67 is input to the drive unit 30 as an input video signal. .

The audio data at the output of the audio decoder 65 is converted into an analog audio signal by a DAC (Digitalto Analog Converter) 71, and the analog audio signal is amplified by an audio amplifier 72 to produce a speech power 73. Is entered.

The control unit 80 includes a CPU (Central Processing Unit) 81, and a bus 82 stores therein a program including a drive control processing routine to be executed by the CPU 81, which will be described later, and various fixed data. Connected ROM (Read Only Memory) 83 and RAM (Rom Access Memory) 84 functioning as a work area of CPU 81 are connected. In addition, the bus 82 is connected to a remote control light receiving unit 85 that receives an infrared remote control signal from a remote control (remote control) transmitter 90. When a still image is displayed, the user can perform a blanking operation.

In this embodiment, the detection of the presence or absence of an input video signal, which is performed by the video signal processing unit 31 in the embodiment of FIG. 1, is performed according to the drive control processing routine written in the ROM 83. When the input video signal does not exist, the control unit 80 sends a drive stop signal to the drive unit 30 and the control unit 80 sends a power cutoff signal to the power supply unit 40. Also, when the user performs a blanking operation with the remote control transmitter 90, a drive stop signal is sent from the control unit 80 to the drive unit 30 and the power is cut off from the control unit 80 to the power supply unit 40. A signal is sent.

FIG. 3 shows an example of a drive control processing routine to be executed by the CPU 81. In this drive control processing routine 50, first, in step 51, it is determined whether or not there is an instruction for image deletion from the remote control light receiving unit 85 due to the image deletion operation of the remote control transmitter 90, and the image deletion instruction is issued. If not, proceeding from step 51 to step 52, it is determined whether or not an input video signal is present by determining whether or not a synchronizing signal is present in the output of the combining processing unit 67. Then, when the synchronizing signal exists, that is, when the input video signal exists, the process proceeds from step 52 to step 53, where the drive unit 30 and the power supply unit 40 are set to a steady operation state. That is, power is supplied from the power supply unit 40 to the drive unit 30, and various drive pulses are generated from the drive unit 30.

On the other hand, if it is determined in step 52 that there is no synchronizing signal, that is, it is determined that there is no input video signal, the process proceeds from step 52 to step 54 to stop the generation of the driving pulse from the driving unit 30 Let me Proceeding to step 55, the supply of power from the power supply unit 40 to the drive unit 30 is cut off.

When it is determined in step 51 that there is an image deletion instruction, the process proceeds from step 51 to step 5 to stop the generation of the drive pulse from the drive unit 30, and further proceeds to step 55. The supply of power from the power supply unit 40 to the drive unit 30 is cut off.

After stopping the operation of the drive unit 30 in step 54, the power supply of the drive unit 30 is cut off in step 55 as described above. This is because it takes time, and during that time, the sustain electrode drive unit 35 and the common pulse generation unit 36 and the like are in an unstable operation state. According to the first invention, it is possible to prevent an image of poor quality from being displayed on the plasma display panel, and to reduce unnecessary power consumption.

According to the second invention, it is possible to prevent burn-in of an image due to display of a still image on the plasma display panel, and to reduce wasteful power consumption.

Claims

The scope of the claims

1. A driving method of a plasma display panel for causing a display cell to emit light by repeatedly performing a sustain discharge by a sustain discharge pulse after a write discharge by a data write pulse.

When there is no input video signal, a plasma display panel for stopping the generation of the data write pulse and the sustain discharge pulse and then shutting off the power supply of a drive unit that generates the data write pulse and the sustain discharge pulse Drive method.

2. After the write discharge by the data write pulse, the sustain discharge by the sustain discharge pulse is repeatedly performed to drive the plasma display panel to cause the display cells to emit light.

A plasma display panel for stopping the generation of the data write pulse and the sustain discharge pulse in response to an external image deletion instruction, and then shutting off a power supply of a driving unit that generates the data write pulse and the sustain discharge pulse; Drive method.

3. Plasma display panel and

A driving unit for repeatedly performing a sustain discharge by a sustain discharge pulse after the write discharge by the overnight write pulse to emit and display a display cell of the plasma display panel;

Detecting whether or not an input video signal is present, and when the input video signal is not present, stopping the generation of the data write pulse and the sustain discharge pulse from the drive unit; Control means for shutting off

A plasma display device comprising:

4. Plasma display panel and A drive unit for repeatedly performing a sustain discharge by a sustain discharge pulse after a write discharge by a data write pulse to emit light and display a display cell of the plasma display panel;

Control means for stopping the generation of the data write pulse and the sustain discharge pulse from the drive unit in response to an external image deletion instruction, and then cutting off the power supply of the drive unit;

A plasma display device comprising: