KR100432648B1 - A plasma display panel driving apparatus and the driving method which improves characteristics of an sustain discharge - Google Patents

A plasma display panel driving apparatus and the driving method which improves characteristics of an sustain discharge Download PDF

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KR100432648B1
KR100432648B1 KR20010057556A KR20010057556A KR100432648B1 KR 100432648 B1 KR100432648 B1 KR 100432648B1 KR 20010057556 A KR20010057556 A KR 20010057556A KR 20010057556 A KR20010057556 A KR 20010057556A KR 100432648 B1 KR100432648 B1 KR 100432648B1
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South Korea
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sustain discharge
sustain
electrode
voltage
scan
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KR20010057556A
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Korean (ko)
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KR20030024415A (en
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손진부
김진성
진광호
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삼성에스디아이 주식회사
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Abstract

PURPOSE: An apparatus for driving a plasma display panel improved in a sustain discharge characteristics and a method for driving the same are provided to enlarge the sustain discharge operational margin of the plasma display panel by improving the sustain discharge driving waveform. CONSTITUTION: An apparatus for driving a plasma display panel improved in a sustain discharge characteristics provided with a plurality of address electrodes, a plurality of scan electrodes and a plurality of sustain electrode formed in a zigzag includes an address electrode driving block for applying at least one address electrode lines by process the address signal and a sustain/scanning pulse generation block for sequentially scanning at least one scan electrodes and for forming a sidewall charge by applying to the scan electrode and the sustain electrode by creating the scan pulse and the sustain pulse, wherein the sustain/scanning pulse generation block applies the first sustain discharge pulse as a first voltage to initiate the sustain discharge of the scan electrode larger than the sustain discharge voltage, sustains the first sustain discharge pulse to initiate the sustain discharge of the scanning electrode to the first level of the sustain discharge voltage at a predetermined period having the first and the second intervals to continue the sustain discharge pulse, and alternatively changes the sustain discharge voltage of the scanning electrode and the sustain electrode into the sustain discharge voltage.

Description

TECHNICAL FIELD [0001] A PLASMA DISPLAY PANEL DRIVING APPARATUS AND THE DRIVING METHOD WHICH IMPROVES CHARACTERISTICS OF AN SUSTAIN DISCHARGE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device and a driving method of a plasma display panel, and more particularly, to a driving device of a plasma display panel having improved sustain discharge characteristics that can widen a driving margin by improving a first sustain discharge pulse in a sustain discharge section. It relates to a driving method.

In general, a plasma display panel (PDP) is a flat panel display device that displays characters or images by using plasma generated by gas discharge, and a matrix of tens to millions or more of pixels is matrixed according to its size. It is arranged in (matrix) form. The plasma display panel is classified into a direct current type (DC type) and an alternating current type (AC type) according to the shape of the driving voltage waveform applied and the structure of the discharge cell.

The structural difference between the direct current type and the direct current type is that in the direct current type, the electrode is exposed to the discharge space as it is, so that the current flows in the discharge space while the voltage is applied. Therefore, there is a disadvantage in that the resistance for current limitation must be made externally. On the other hand, in the case of the AC type, the dielectric layer covers the electrode so that the current is limited by the natural capacitive formation, and the life is longer than that of the DC type because the electrode is protected from the impact of ions during discharge. The memory characteristic, which is one of the important characteristics of the AC plasma display panel, also comes from the capacitive property of the dielectric layer covering the electrode.

In the light emission principle of the AC plasma display panel, a potential difference in the form of a pulse is formed between the X electrode (or common electrode, sustain electrode, hereinafter referred to as sustain electrode) and the Y electrode (or scan electrode, scan electrode, hereinafter referred to as scan electrode). Is formed, and discharge occurs. At this time, the vacuum ultraviolet rays generated in the discharge process are excited to the red (R), green (G), and blue (B) phosphors, and each phosphor emits light by light combination. These discharges are affected by various parameters, but they are largely related to the discharge gas type and pressure inside the plasma display panel, and the secondary electron emission characteristics of the magnesium oxide (MgO) protective film. It depends a lot.

The AC plasma display panel has a capacitance Cp for the sustain electrode and the scan electrode because the sustain electrode and the scan electrode act as capacitive loads for the sustain discharge, and to apply a waveform for the sustain discharge, In addition to the power required for reactive power.

1 is an electrode arrangement diagram of a typical plasma display panel.

The electrodes have a matrix configuration of m columns X n rows. Address electrodes A1 to Am are arranged in the column direction, and n rows of scan electrodes SCN1 to SCNn and sustain electrodes SUS1 to SUSn are arranged in the row direction. The discharge space at the intersection of the address electrode, the paired scan electrode, and the sustain electrode forms a discharge cell.

2A and 2B are waveform diagrams showing conventional plasma display panel drive waveforms.

In order to generate a driving waveform of a conventional plasma display panel, the driving device includes one or more switches according to an operation sequence, and supplies power to the panel according to the switching operation of the switch, and recovers the power again after discharge is performed. A pulse supply unit (not shown) for generating a drive waveform generates a reset pulse for initializing the state of each discharge cell, stores a pulse signal for allowing wall charges to accumulate in the discharge cell, and then supplies it to the panel at a predetermined timing. The stored pulses are output, and each discharge cell is selected to address and discharge cells to be turned on and discharge cells not to be turned on.

In the conventional method of driving a plasma display panel, an address-display separation (ADS) driving method that separates an address and a sustain discharge of each electrode basically requires one frame to implement one image. It consists of n subfields (usually 8-12), and one subfield consists of a reset section, a scan (or address) section, a sustain (sustain) section, and an erase section.

The reset section initializes the state of each discharge cell so that the addressing operation can be performed smoothly on the discharge cell, and the scan (or address, hereinafter referred to as scan) section selects the discharge cell which is turned on and the discharge cell which is not turned on. In order to scan line by line, the selected discharge cells form a wall charge structure that can perform sustain discharge operation by address discharge, and the sustain (or sustain, referred to as sustain) section is addressed discharge cells. Discharge is actually performed to express the image.

As shown in FIG. 2, in the reset period, all address electrodes A1 to Am and all sustain electrodes SUS1 to SUSn are held at 0 V in all the reset periods, and all scan electrodes SCN1 to SCNn are connected to each other. A ramp voltage that rises smoothly from the voltage below the discharge start voltage to the voltage above the discharge start voltage is applied to the sustain electrode. In the second half of the reset period, ramp voltages that slowly drop toward the 0 V over the discharge start voltage are applied to all the scan electrodes from the voltage which is below the discharge start voltage. In the scan section, all scan (Y) electrodes are kept at voltage Vsc, and a positive scan pulse voltage is scanned on the address electrodes corresponding to the discharge cells to be displayed on the first row of the addressing electrodes, and the scan (Y) electrodes on the first row are scanned. Pulse voltage (0 V) is applied at the same time to allow wall charge to accumulate. In the sustain period, a sustain pulse is applied to all the scan (Y) electrodes and the sustain (X) electrodes so that sustain discharge occurs in a gray scale to be expressed in the discharge cells.

During the scan period, there is a time difference between the first scan line and the last scan line where the address discharge occurred. That is, since the discharge cells having address discharge in the first scan line are larger than the discharge cells having address discharge in the last scan line, the distance from the first pulse of the sustain discharge is larger by the time difference, so that the address discharge effect or the adjacent discharge cells are larger. The priming effect is lowered. Therefore, the sustain discharge in the first scan line, the discharge in the first pulse is less likely to occur than the last scan line.

To solve this problem, a method of compensating with the first sustain discharge pulse to overcome the difference in time between the address discharge in the first scan line and the address discharge in the last scan line is used. That is, as shown in FIG. 2A, the driving method is driven by widening the width of the first pulse of sustain discharge (driven by driving the driving time of the first pulse longer), or driving by increasing the height of the first pulse as shown in FIG. 2B. By using this method (a method of driving by increasing the driving voltage of the first pulse), the structure of the wall charges generated at time intervals can be compensated, thereby increasing the operating margin by the sustain discharge pulse.

By the way, in such a conventional driving method, the driving method by increasing the height of the first pulse higher than the driving method by widening the width of the first pulse of the sustain discharge pulse is advantageous in broadening the operating margin. When the voltage of the first pulse exceeds a certain voltage, a self-erasing discharge occurs at the falling portion of the first pulse to prevent a sustain discharge occurring later, or a weak discharge causes a problem in expressing gray scales. Occurs.

In order to solve such a problem, the technical problem to be achieved by the present invention is to improve the sustain discharge driving waveform to extend the sustain discharge operation margin of the plasma display panel.

1 is an electrode arrangement diagram of a typical plasma display panel.

2A and 2B are waveform diagrams showing conventional plasma display panel drive waveforms.

3 is a block diagram illustrating an apparatus for driving a plasma display panel according to a first embodiment of the present invention.

4 is a waveform diagram illustrating driving waveforms of a plasma display panel according to a first exemplary embodiment of the present invention.

5 is a waveform diagram illustrating driving waveforms of a plasma display panel according to a second exemplary embodiment of the present invention.

6 is a waveform diagram illustrating driving waveforms of a plasma display panel according to a third exemplary embodiment of the present invention.

In order to achieve the above object, a plasma display panel driving apparatus having improved sustain discharge characteristics in accordance with one aspect of the present invention is

A driving device of a plasma display panel including a reset period, an address period, and a sustain period, and including a plurality of address electrodes, a plurality of scan electrodes and a sustain electrode paired in a zigzag pattern.

An address electrode driver for processing an address signal and applying the same to one or more of the address electrode lines;

A sustain / scan pulse generation unit configured to sequentially scan one or more of the scan electrodes, generate scan pulses and sustain pulses, and apply them to the scan electrodes and the sustain electrodes to form wall charges;

The sustain / scan pulse generator applies the first sustain discharge pulse at which the sustain discharge of the scan electrode starts during the sustain period to a first voltage equal to or greater than a sustain discharge voltage, and the first sustain discharge pulse of the scan electrode is applied to the first sustain discharge pulse. While maintaining the voltage, the first pulse of the sustain electrode is raised to the sustain discharge voltage and maintained for a predetermined first period, and the first sustain discharge pulse of the scan electrode is maintained at ground level or when the first period ends. After the voltage is lowered to the reference voltage, the sustain discharge potential of the scan electrode and the sustain electrode is alternated with the sustain discharge voltage having the polarity crossing.

According to another aspect of the present invention, a method of driving a plasma display panel having improved sustain discharge characteristics is provided.

A driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,

A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;

A scan step of determining on and off of the discharge cells and addressing them; And

A sustain discharge step of sustain discharge of the addressed discharge cells;

The sustain discharge step may include a first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;

A second step of alternately applying sustain discharge of the scan electrode and the sustain electrode to a second sustain discharge voltage lower than the first sustain discharge voltage during a second sustain discharge period;

It includes, characterized in that for overlapping the first sustain discharge period and the second sustain discharge period.

According to still another aspect of the present invention, there is provided a method of driving a plasma display panel with improved sustain discharge characteristics.

A driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,

A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;

A scan step of determining on and off of the discharge cells and addressing them; And

A sustain discharge step of sustain discharge of the addressed discharge cells;

The sustain discharge step may include a first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;

Applying a second sustain discharge voltage higher than the first sustain discharge voltage to the sustain electrode during a second sustain discharge period;

A third step of applying alternating polarity of the scan electrode and the sustain electrode to the first sustain discharge voltage during a third sustain discharge period after the second sustain discharge period;

It includes, characterized in that for partially overlapping the second sustain discharge period and the third sustain discharge period.

According to still another aspect of the present invention, there is provided a method of driving a plasma display panel with improved sustain discharge characteristics.

A driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,

A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;

A scan step of determining on and off of the discharge cells and addressing them; And

A sustain discharge step of sustain discharge of the addressed discharge cells;

The sustain discharge step may include a first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;

Applying a second sustain discharge voltage to the sustain electrode during a second sustain discharge period;

A third step of applying a sustain discharge of the scan electrode and the sustain electrode alternately with a third sustain discharge voltage lower than the first and second sustain discharge voltages in a third sustain discharge period;

And the second sustain discharge section partially overlaps the first sustain discharge section and the third sustain discharge section.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a block diagram illustrating an apparatus for driving a plasma display panel according to a first embodiment of the present invention.

As shown in FIG. 3, the plasma display panel driving apparatus according to the first exemplary embodiment of the present invention includes a frame memory unit 100, a frame generator 200, a timing controller 300, and a driving pulse generation controller 400. The address electrode driver 500 includes a scan electrode driver 600, a common electrode driver 700, and a panel 800.

The analog image signal to be displayed on the panel 800 is received from the outside, converted into digital data, and then recorded in the frame memory 100.

The frame generator 200 divides the digital data stored in the frame memory 100 as needed and outputs the divided data to the driving pulse generation controller 400. For example, in order to display gray scales, the panel 800 divides one frame of pixel data stored in the frame memory 100 into a plurality of subfields according to the gray scale level, and outputs data of each subfield.

The timing controller 300 generates various timing signals necessary for the operation of the frame generator 200 and the driving pulse generation controller 400.

The driving pulse generation controller 400 receives a frame generation signal and a timing signal output from the frame generator 200 and the timing controller 300 to control a signal for driving the scan electrode driver 600 and the sustain electrode driver 700. And generate an address signal for driving the address electrode driver 500, and generate a signal waveform to be applied to each electrode in a reset period, a scan period, and a sustain period. That is, the driving pulse generation control unit 400 generates a reset signal for initializing the state of each discharge cell, generates an address signal for selecting and discharging a discharge cell that is turned on and a discharge cell that is not turned on, and discharges the addressed cell. Generate a hold signal.

The address electrode driver 500 receives the control signal from the driving pulse generation controller 400 and addresses each discharge cell to turn on or off.

The scan electrode driver 600 receives a control signal from the drive pulse generation controller 400, initializes the charge distribution state of the discharge cells generated on the scan electrode, and selects the first sustain discharge pulse of the addressed discharge cell. It is set high during the period and sustain discharge by the second pulse occurs after the first pulse of sustain discharge of the sustain electrode is applied.

The sustain electrode driver 700 initializes the charge distribution state of the discharge cells generated on the sustain electrode in cooperation with the scan electrode driver 600, and the first sustain discharge pulse of the scan electrode of the addressed discharge cell is applied. The sustain discharge of the sustain electrode is caused before the fall of the first pulse.

Hereinafter, the operation of the driving apparatus of the plasma display panel having the improved sustain discharge characteristic according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a waveform diagram illustrating driving waveforms of a plasma display panel according to a first exemplary embodiment of the present invention.

One frame is composed of a plurality of subfields, and each subfield includes a reset section, a scan section, and a sustain section. The present invention relates to a subfield structure of a frame as in the embodiment. It may be applied in addition to the case having the present invention is not limited only to the embodiment.

The reset section adjusts the wall charge distribution to smoothly perform the write operation in the address section by forming wall charges with appropriate polarities and amounts in the address electrodes A, the scan electrodes Y, and the sustain electrodes X, respectively. It is a section. That is, the wall charge state of each electrode is a section in which the charge state of the discharge cell is adjusted so that write discharge in the address section can be performed.

The reset operation in the case where the reset section is performed immediately after the end of the sustain discharge in one subfield is completed, the drive pulse generation control unit 400 is gentle to the sustain electrode X when the sustain discharge in the previous subfield is finished. Apply a rising ramp pulse. At this time, in the discharge cell that caused the sustain discharge, the inter-surface voltage on the scan electrode Y and the sustain electrode X is negative wall charge and sustain electrode X on the scan electrode Y appearing at the end of the sustain period. The lamp voltage is added to the positive wall charge of the phase.

The pulse waveform applied to the scan electrode Y holds all address electrodes A and all sustain electrodes X at 0V in the first half thereof. To all the scan electrodes Y, a ramp voltage which rises slowly from the voltage which is below the discharge start voltage to the voltage above the discharge start voltage is applied to the sustain electrode X. While the ramp voltage rises, the first weak reset discharge occurs from the scan electrode Y to the address electrode A and the sustain electrode X in all the discharge cells. As a result, negative wall charges are accumulated on the surface of the protective film on the scan electrode Y. At the same time, positive wall charges are accumulated on the insulator surface on the address electrode A and the protective film surface on the sustain electrode X.

In the second half of the reset period, the sustain electrode driver 700 maintains all of the sustain electrodes X at the constant voltage Ve. The scan electrode driver 600 applies a ramp voltage gently falling toward the 0 V over the discharge start voltage from the voltage below the discharge start voltage to all the scan electrodes Y. While this ramp voltage falls, the second weak reset discharge occurs from the sustain electrode X to the scan electrode Y again in all the discharge cells. As a result, the negative wall voltage of the protective film surface on the scan electrode Y and the positive wall voltage of the protective film surface on the sustain electrode X are weakened. Further, a weak discharge also occurs between the address A electrode and the scan electrode Y, and the positive wall voltage on the surface of the insulator layer on the address electrode A is adjusted to a value suitable for the write operation. After the reset operation of the reset section is completed, the scan section is subsequently performed.

In the scan section, the X bias X_bias serves to help the discharge to occur smoothly in the first pulse of the next sustain discharge section by attracting the negative charge (electron) generated by the address discharge onto the sustain electrode X. do. That is, due to the discharge between the address electrode A and the scan electrode Y, the positive wall charges going to the scan electrode Y and the negative charges (electrons) going to the address electrode are sustained by the X bias X_bias. By attracting a large amount of), the first sustain discharge pulse on the scan electrode Y side is likely to occur. Therefore, when the X bias X_bias is made higher than the sustain discharge voltage Vs, the probability of transition to sustain discharge is increased even if the address discharge by the address electrode-scan electrode Y does not occur strongly. This characteristic serves to increase the probability of transition to sustain discharge in case of performing a high-speed address or in the case where address discharge occurs in the absence of scan priming. In the embodiment of the present invention, the X bias X_bias is higher than the sustain discharge voltage Vs so that the first sustain discharge pulse is easily generated. However, the present invention is not limited to the embodiment, and the first sustain discharge pulse is likely to occur. Any bias voltage can be used.

After the scan period ends and the sustain discharge period begins, when the sustain discharge first pulse of the scan electrode Y is applied after a predetermined time has elapsed, the sustain electrode driver 700 generates the driving voltage of the sustain electrode X. Drop to ground level (GND). In this case, the driving voltage of the sustain electrode X may drop to the set reference voltage, and the present invention is not limited only to the embodiment.

The scan electrode driver 600 applies an applied voltage Vs_1st of the first pulse higher than the sustain discharge voltage Vs while the first sustain discharge pulse of the scan electrode Y is applied. Then, before the first sustain discharge pulse of the scan electrode Y falls to the ground level GND, the first sustain discharge pulse of the sustain electrode Y is applied to the sustain discharge voltage Vs.

In this manner, before the first sustain discharge pulse of the scan electrode Y falls, the first pulse of the scan electrode Y is applied by applying the first sustain discharge pulse of the sustain electrode X to the sustain discharge voltage Vs. In addition to suppressing possible self-erasing discharges, sustain discharges are generated by the first sustain discharge pulses of the sustain electrodes X, and thus the operating margins of the scan and sustain sections overlap the first pulses. As wide as you can. That is, while the first pulse of the sustain electrode X maintains the sustain discharge voltage Vs while the first pulse of the scan electrode Y falls to the ground level GND or the reference voltage, the scan electrode ( Suppresses the self-erasing discharge that may occur upon the first pulse drop of Y) and allows stable sustain discharge to be performed.

As described above, according to the first exemplary embodiment of the present invention, the sustain discharge voltage for the first sustain discharge pulse can be set high, and the sustain discharge is possible even if the wall voltage formed by the address discharge is small. Even if the address discharge is unstable during the scan period and sufficient wall charges for performing the sustain discharge are not formed on the sustain electrode X and the scan electrode Y, the first sustain discharge pulse of the scan electrode Y is removed. The sustain discharge can be performed by applying a high voltage Vs_1st and causing the first sustain discharge pulse of the sustain electrode X to rise to the sustain discharge voltage Vs before the first sustain discharge pulse fall of the scan electrode Y. . In addition, since a period of applying the address voltage is shortened and image generation due to sustain discharge is possible even if unstable address discharge occurs, it is very advantageous for a driving method of scanning (or addressing) at high speed.

5 is a waveform diagram illustrating a method of driving a plasma display panel according to a second embodiment of the present invention.

The driving apparatus of the plasma display panel according to the second exemplary embodiment of the present invention is indicated and described with the same reference numerals as the driving apparatus of the first exemplary embodiment of the present invention, and a description of overlapping parts will be omitted.

In the method of driving a plasma display panel according to the second embodiment of the present invention, the first sustain discharge pulse of the scan electrode Y is driven by the sustain discharge voltage Vs, and the first pulse drive voltage of the sustain electrode X is driven. The voltage Vs_2st is driven higher than the sustain discharge voltage Vs, and the second sustain pulse of the scan electrode Y is discharged before the first sustain discharge pulse of the sustain electrode X falls to the ground level GND. The waveform which raises to sustain discharge voltage Vs is applied.

In this manner, before the first sustain discharge pulse of the sustain electrode X falls, the second sustain pulse of the scan electrode Y is applied to the sustain discharge voltage Vs to lower the first pulse of the sustain electrode X. The part where the sustain discharge pulse overlaps the operating margin in the scan section and the sustain section by suppressing possible self-erasing discharge and generating sustain discharge by the second sustain discharge pulse of the scan electrode (Y). As wide as you can. That is, since the second pulse of the scan electrode Y maintains the sustain discharge voltage Vs while the first pulse of the sustain electrode X falls to the ground level GND or the reference voltage, the sustain electrode ( Suppresses the self-erasing discharge that may occur upon the first pulse drop of X) and allows stable sustain discharge to be performed.

6 is a waveform diagram illustrating driving waveforms of a plasma display panel according to a third exemplary embodiment of the present invention.

The driving device of the plasma display panel according to the third embodiment of the present invention is the same as the driving device and the reference sign of the plasma display panels of the first and second embodiments of the present invention, and descriptions of overlapping portions will be omitted.

In the third embodiment of the present invention, when a sustain discharge first pulse of the scan electrode Y is applied after a predetermined time has elapsed after the start of the sustain discharge interval, the driving voltage of the sustain electrode X is at ground level ( GND). While the first sustain discharge pulse of the scan electrode Y is applied, the applied voltage Vs_1st of the first pulse is applied higher than the sustain discharge voltage Vs. Then, before the first sustain discharge pulse of the scan electrode Y falls to the ground level GND, the first sustain discharge pulse of the sustain electrode X is applied to the sustain discharge voltage Vs. In addition, the first sustain discharge pulse of the scan electrode Y is driven with an applied voltage Vs_1st higher than the sustain discharge voltage Vs, and the first pulse drive voltage of the sustain electrode X is sustained with a voltage Vs_2st. Drives higher than the voltage Vs, and before the first sustain discharge pulse of the sustain electrode X falls to the ground level GND, the second sustain discharge pulse of the scan electrode Y is applied to the sustain discharge voltage Vs. Apply the waveform to raise.

The embodiments of the present invention are not limited to the embodiments, as well as many variations and modifications to the components of the drive device for generating a drive waveform within the scope without departing from the gist of the present invention.

As described above, the driving apparatus and the driving method of the plasma display panel having improved sustain discharge characteristics of the present invention can improve the sustain discharge margin of the plasma display panel by improving the sustain discharge driving waveform.

Claims (13)

  1. In a driving apparatus of a plasma display panel including a reset period, an address period and a sustain period, and including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with each other in a zigzag pattern,
    An address electrode driver for processing an address signal and applying the same to one or more of the address electrode lines;
    A sustain / scan pulse generation unit configured to sequentially scan one or more of the scan electrodes, generate scan pulses and sustain pulses, and apply them to the scan electrodes and the sustain electrodes to form wall charges;
    The sustain / scan pulse generator applies the first sustain discharge pulse at which the sustain discharge of the scan electrode starts during the sustain period to a first voltage equal to or greater than a sustain discharge voltage, and the first sustain discharge pulse of the scan electrode is applied to the first sustain discharge pulse. While maintaining the voltage, the first pulse of the sustain electrode is raised to the sustain discharge voltage and maintained for a predetermined first period, and the first sustain discharge pulse of the scan electrode is maintained at ground level or when the first period ends. And a sustain discharge voltage of the scan electrode and the sustain electrode is alternated with a sustain discharge voltage having a polarity crossing, after the voltage is lowered to a reference voltage.
  2. In a driving apparatus of a plasma display panel including a reset period, an address period and a sustain period, and including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with each other in a zigzag pattern,
    An address electrode driver for processing an address signal and applying the same to one or more of the address electrode lines;
    A sustain / scan pulse generation unit configured to sequentially scan one or more of the scan electrodes, generate scan pulses and sustain pulses, and apply them to the scan electrodes and the sustain electrodes to form wall charges;
    The sustain / scan pulse generator applies a first sustain discharge pulse at which sustain discharge of the scan electrode is started as a sustain discharge voltage during the sustain period, and the first sustain discharge pulse of the scan electrode falls to a ground level or a reference voltage. While applying the first sustain discharge pulse of the sustain electrode to a first voltage above the sustain discharge voltage, and the second sustain discharge pulse of the scan electrode while the first sustain discharge pulse of the sustain electrode is maintained at the first voltage Is raised to a sustain discharge voltage to be maintained for a predetermined first period, and when the first interval ends, the first sustain discharge pulse of the sustain electrode is lowered to a ground level or a reference voltage, and then the scan electrode and the sustain are maintained. Alternating the sustain discharge potential of the electrode to the sustain discharge voltage with the polarity crossing A drive device for a plasma display panel having improved sustain discharge characteristics.
  3. In a driving apparatus of a plasma display panel including a reset period, an address period and a sustain period, and including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with each other in a zigzag pattern,
    An address electrode driver for processing an address signal and applying the same to one or more of the address electrode lines;
    A sustain / scan pulse generation unit configured to sequentially scan one or more of the scan electrodes, generate scan pulses and sustain pulses, and apply them to the scan electrodes and the sustain electrodes to form wall charges;
    The sustain / scan pulse generator applies the first sustain discharge pulse at which the sustain discharge of the scan electrode starts during the sustain period to a first voltage equal to or greater than the sustain discharge voltage, and applies the first sustain discharge pulse of the scan electrode. Thereafter, the first sustain discharge pulse of the sustain electrode is applied as a second voltage equal to or greater than the sustain discharge voltage, and the sustain discharge voltage is alternately applied to the scan electrode and the sustain electrode after the first sustain discharge pulse of the sustain electrode. ,
    Applying and maintaining the first sustain discharge pulse of the sustain electrode to the second voltage before the first sustain discharge pulse of the scan electrode falls from the first voltage to a third voltage lower than the first voltage,
    Before the first sustain discharge pulse of the sustain electrode is lowered from the second voltage to a fourth voltage lower than the second voltage, the second sustain discharge pulse of the scan electrode is applied as the sustain discharge voltage and maintained. A drive device for a plasma display panel having improved sustain discharge characteristics.
  4. In a driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,
    A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;
    A scan step of determining on and off of the discharge cells and addressing them; And
    A sustain discharge step of sustain discharge of the addressed discharge cells;
    The sustain discharge step,
    A first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;
    A second step of alternately applying sustain discharge of the scan electrode and the sustain electrode to a second sustain discharge voltage lower than the first sustain discharge voltage during a second sustain discharge period;
    Including;
    And a sustain discharge characteristic of partially overlapping the first sustain discharge section and the second sustain discharge section.
  5. The method of claim 4 wherein the first step is
    Maintaining the sustain electrode at a ground level or a reference voltage while the first sustain discharge pulse of the scan electrode is maintained at the first sustain discharge voltage;
    Raising the first sustain discharge pulse of the sustain electrode to the second sustain discharge voltage while the first sustain discharge pulse of the scan electrode is maintained at the first sustain discharge voltage;
    Applying a sustain discharge pulse to the scan electrode and the sustain electrode by partially overlapping the first sustain discharge pulses of the scan electrode and the sustain electrode; And
    Lowering the first sustain discharge pulse of the scan electrode to a ground level or a reference voltage while the first sustain discharge pulse of the sustain electrode maintains the second sustain discharge voltage.
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
  6. The method of claim 5, wherein the second step
    The first time point before the second sustain discharge pulse of the scan electrode is applied while maintaining the scan electrode at the ground level or the reference voltage while the first sustain discharge pulse of the sustain electrode maintains the second sustain discharge voltage. Lowering the first sustain discharge pulse of the sustain electrode to a ground level or a reference voltage at And
    Maintaining the scan electrode at ground level or reference voltage while maintaining the sustain electrode at ground level or reference voltage and raising a second sustain discharge pulse of the scan electrode to the second sustain discharge voltage;
    A method of driving a plasma display panel further comprising a sustain discharge characteristic.
  7. In a driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,
    A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;
    A scan step of determining on and off of the discharge cells and addressing them; And
    A sustain discharge step of sustain discharge of the addressed discharge cells;
    The sustain discharge step,
    A first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;
    Applying a second sustain discharge voltage higher than the first sustain discharge voltage to the sustain electrode during a second sustain discharge period; And
    A third step of applying alternating polarity of the scan electrode and the sustain electrode to the first sustain discharge voltage during a third sustain discharge period after the second sustain discharge period;
    Including;
    And a sustain discharge characteristic of partially overlapping the second sustain discharge section and the third sustain discharge section.
  8. The method of claim 7, wherein the second step is
    Maintaining a first sustain discharge pulse of the scan electrode at a ground level or a reference voltage, and maintaining the sustain electrode at the second sustain discharge voltage while the first sustain discharge pulse of the scan electrode is maintained;
    Raising a second sustain discharge pulse of the scan electrode to the first sustain discharge voltage at a predetermined first time point at which the first sustain discharge pulse of the sustain electrode maintains the second sustain discharge voltage;
    Maintaining a first sustain discharge pulse of the sustain electrode at the second sustain discharge voltage while a second sustain discharge pulse of the scan electrode maintains the first sustain discharge voltage; And
    Lowering the first sustain discharge pulse of the sustain electrode to a ground level or a reference voltage at a predetermined second time point at which the scan electrode maintains the second sustain discharge voltage;
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
  9. The method of claim 8, wherein the third step
    The sustain electrode is maintained at ground level or reference voltage while the second sustain discharge pulse of the scan electrode maintains the first sustain discharge voltage, and before the second sustain discharge pulse of the sustain electrode is applied. Lowering the second sustain discharge pulse of to ground level or reference voltage; And
    The second sustain discharge pulse of the sustain electrode is maintained at the ground level or the reference voltage while the voltage of the second sustain discharge pulse of the scan electrode is maintained at the ground level or the reference voltage, followed by the second sustain discharge pulse of the sustain electrode. Ascending steps
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
  10. In a driving method of a plasma display panel including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes paired with one another in pairs,
    A reset step of initializing a charge distribution state of a discharge cell formed by the address electrode, scan electrode, and sustain electrode;
    A scan step of determining on and off of the discharge cells and addressing them; And
    A sustain discharge step of sustain discharge of the addressed discharge cells;
    The sustain discharge step may include a first step of applying a first sustain discharge voltage to the scan electrode during a first sustain discharge period;
    Applying a second sustain discharge voltage to the sustain electrode during a second sustain discharge period; And
    A third step of applying a sustain discharge of the scan electrode and the sustain electrode alternately with a third sustain discharge voltage lower than the first and second sustain discharge voltages in a third sustain discharge period;
    Including;
    And a sustain discharge characteristic in which the second sustain discharge section partially overlaps the first sustain discharge section and the third sustain discharge section.
  11. The method of claim 10 wherein the first step is
    Maintaining the sustain electrode at a ground level or a reference voltage while the first sustain discharge pulse of the scan electrode is maintained at the first sustain discharge voltage;
    Raising the first sustain discharge pulse of the sustain electrode to the second sustain discharge voltage while the first sustain discharge pulse of the scan electrode is maintained at the first sustain discharge voltage;
    Partially overlapping the first sustain discharge pulses of the scan electrode and the sustain electrode to apply the sustain discharge pulse to the scan electrode and the sustain electrode; And
    Lowering the first sustain discharge pulse of the scan electrode to a ground level or a reference voltage while the first sustain discharge pulse of the sustain electrode maintains the second sustain discharge voltage.
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
  12. The method of claim 10, wherein the second step
    Maintaining a first sustain discharge pulse of the scan electrode at a ground level or a reference voltage, and maintaining the sustain electrode at the second sustain discharge voltage while the first sustain discharge pulse of the scan electrode is maintained;
    Raising a second sustain discharge pulse of the scan electrode to the third sustain discharge voltage at a predetermined first time point at which the first sustain discharge pulse of the sustain electrode maintains the second sustain discharge voltage;
    Maintaining a first sustain discharge pulse of the sustain electrode at the second sustain discharge voltage while a second sustain discharge pulse of the scan electrode maintains the third sustain discharge voltage; And
    Lowering the first sustain discharge pulse of the sustain electrode to a ground level or a reference voltage at a predetermined second time point at which the scan electrode maintains the second sustain discharge voltage;
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
  13. The method of claim 12, wherein the third step
    The sustain electrode is maintained at ground level or reference voltage while the second sustain discharge pulse of the scan electrode maintains the third sustain discharge voltage, and a predetermined amount before the second sustain discharge pulse of the sustain electrode is applied. Dropping the second sustain discharge pulse of the scan electrode to ground level or reference voltage at three time points; And
    The sustain electrode is maintained at the ground level or the reference voltage while the scan electrode is maintained at the ground level or the reference voltage, and the second sustain discharge pulse of the sustain electrode is raised to the third sustain discharge voltage at a predetermined fourth time point. Letting step
    A method of driving a plasma display panel having improved sustain discharge characteristics comprising a.
KR20010057556A 2001-09-18 2001-09-18 A plasma display panel driving apparatus and the driving method which improves characteristics of an sustain discharge KR100432648B1 (en)

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KR100573167B1 (en) 2004-11-12 2006-04-24 삼성에스디아이 주식회사 Driving method of plasma display panel

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KR100560493B1 (en) * 2003-10-24 2006-03-13 삼성에스디아이 주식회사 Plasma display device and driving method of plasma display panel
KR100560506B1 (en) * 2004-10-15 2006-03-14 삼성에스디아이 주식회사 Driving method of plasma display panel
KR100627367B1 (en) * 2005-01-18 2006-09-22 삼성에스디아이 주식회사 Plasma display device and driving method thereof
KR100672311B1 (en) * 2005-11-11 2007-02-15 엘지전자 주식회사 Apparatus for driving plasma display panel
KR100820637B1 (en) * 2006-06-05 2008-04-10 엘지전자 주식회사 Plasma Display Apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100573167B1 (en) 2004-11-12 2006-04-24 삼성에스디아이 주식회사 Driving method of plasma display panel

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