KR20120044733A - 3-d plasma display apparatus - Google Patents

Abstract

PURPOSE: A three dimensional plasma display apparatus is provided to change an applying time point of an emitter signal according to an average power level. CONSTITUTION: A first emitter signal(ESa) corresponds to a first frame(F1). A second emitter signal(ESb) corresponds to a second frame(F2). The first and second emitter signals are delayed for T10. A third emitter signal(ESc) corresponds to a third frame(F3). A fourth emitter signal(ESd) corresponds to a fourth frame(F4). The third and fourth emitter signals are delayed for T11. The T11 is smaller than the T10.

Description

Stereo Plasma Display Apparatus {3-D Plasma Display Apparatus}

The present invention relates to a three-dimensional plasma display device.

The stereoscopic plasma display apparatus includes a plasma display panel.

The plasma display panel includes a phosphor layer formed in a discharge cell divided by a partition wall, and also includes a plurality of electrodes.

When the drive signal is supplied to the electrode of the plasma display panel, the discharge is generated by the drive signal supplied in the discharge cell. Here, when discharged by a drive signal in the discharge cell, the discharge gas filled in the discharge cell generates vacuum ultraviolet rays, and the vacuum ultraviolet light emits the phosphor formed in the discharge cell to emit visible light. Generate. The visible light displays an image on the screen of the plasma display panel.

An object of the present invention is to provide a three-dimensional plasma display device for changing the time of application of the emitter signal in accordance with the average power level (APL).

The stereoscopic plasma display device according to the present invention implements an image on the screen of the plasma display panel in a frame including a plasma display panel and a plurality of sub-fields, and emitter signals (3D glasses) The driving unit may transmit an emitter signal, and an application time point of the emitter signal may be changed according to an average power level (APL) of an input image frame.

The emitter signal may be a signal for turning on or turning off the left or right eye lens of the 3D glasses.

The frame may include a left frame including at least one subfield and a right frame including at least one subfield.

The emitter signal may be located between two consecutive frames, and may be located between the left eye frame and the right eye frame.

In addition, the emitter signal may be located between two consecutive frames.

In addition, when the average power level is changed, the application point of the emitter signal may be changed.

In addition, when the average power level increases, the application point of the emitter signal may be pulled.

In addition, when the average power level increases, the application point of the emitter signal may be delayed.

In addition, when the average power level decreases, the application point of the emitter signal may be delayed.

In addition, when the average power level is maintained, the time difference between two consecutive emitter signals may be substantially the same regardless of the value of the average power level.

In addition, another three-dimensional plasma display device according to the present invention implements an image on the screen of the plasma display panel in a frame including a plasma display panel, a plurality of sub-field, and the Emi with 3D glasses And a driver for transmitting an emitter signal, wherein the frame includes consecutive first, second and third frames, and the average power level of the first frame is APL. APL1) and the average power level of the second frame is a second level higher than the first level, the emitter signal corresponding to the first frame and the emitter signal corresponding to the second frame. The time difference may be greater than a time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame.

Further, when the average power level of the third frame is lower than or equal to the second level, a time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame may be determined by the third power supply. It is possible to be less than or equal to the time difference between the emitter signal corresponding to three frames and the emitter signal corresponding to the fourth frame after the third frame.

In addition, when the average power level of the third frame is lower than the second level, the time difference between the emitter signal corresponding to the third frame and the emitter signal corresponding to the fourth frame is the first frame. It is possible to be larger than the time difference between the emitter signal corresponding to and the emitter signal corresponding to the second frame.

The time difference between the emitter signal corresponding to the first frame and the start time of the first frame may be different from the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. have.

In addition, the time difference between the emitter signal corresponding to the first frame and the start time of the first frame may be approximately equal to the time difference between the emitter signal corresponding to the second frame and the start time of the second frame ( Approximately) may be the same.

The time difference between the emitter signal corresponding to the second frame and the end point of the first frame may be different from the time difference between the emitter signal corresponding to the third frame and the end point of the second frame. have.

In addition, the time difference between the emitter signal corresponding to the second frame and the end point of the first frame may be substantially equal to the time difference between the emitter signal corresponding to the third frame and the end point of the second frame ( Approximately) may be the same.

The start point of the frame may be a point of time when the reset signal is supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the plurality of subfields of the frame.

The end point of the frame may be the end point of the last sustain signal of the sustain signal supplied to any one of the scan electrode and the sustain electrode of the plasma display panel in the reset period of the last subfield among the plurality of subfields of the frame. have.

In addition, the application time of the emitter signal corresponding to the second frame is later than the supply time of the reset signal supplied to the scan electrode in the reset period of the first subfield of the second frame, and corresponds to the third frame. The application point of the emitter signal may be earlier than the application point of the reset signal supplied to the scan electrode in the reset period of the first subfield of the third frame.

In addition, another three-dimensional plasma display device according to the present invention implements an image on the screen of the plasma display panel in a frame including a plasma display panel, a plurality of sub-field (3D glasses), And a driver for transmitting an emitter signal, wherein the frame includes consecutive first, second, and third frames, and the average power level of the first frame is APL. APL1 and the average power level of the second frame is a second level lower than the first level, the emitter signal corresponding to the first frame and the emitter signal corresponding to the second frame. The time difference may be greater than the time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame.

Further, when the average power level of the third frame is higher than the second level, a time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame is determined by the third frame. It is possible to be smaller than the time difference between the emitter signal corresponding to and the emitter signal corresponding to the fourth frame after the third frame.

The emitter signal corresponding to the first frame overlaps with the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the first frame, and the second frame. The emitter signal corresponding to may overlap with a scan signal supplied to the scan electrode of the plasma display panel in an address period after the reset period of the first subfield of the second frame.

The time difference between the emitter signal corresponding to the first frame and the synchronization signal Vsync corresponding to the first frame may correspond to the emitter signal corresponding to the second frame and the second frame. It may be less than the time difference between the synchronization signals (Vsync).

In addition, the application time of the emitter signal corresponding to the first frame is later than the application time of the synchronization signal Vsync corresponding to the first frame, and the application time of the emitter signal corresponding to the second frame is It may be later than an application time point of the sync signal Vsync corresponding to the second frame.

The time difference between the emitter signal corresponding to the first frame and the start time of the first frame may be different from the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. have.

The time difference between the emitter signal corresponding to the first frame and the start time of the first frame may be smaller than the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. have.

In addition, the application time of the emitter signal corresponding to the first frame is later than the start time of the first frame, and the application time of the emitter signal corresponding to the second frame is earlier than the start time of the second frame. It may be late.

In addition, the application point of the emitter signal corresponding to the first frame is earlier than the supply point of the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the first frame. An application point of the emitter signal corresponding to two frames may be later than a supply point of the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the second frame.

In addition, another stereoscopic plasma display device according to the present invention includes a plasma display panel including side by side scan electrodes and sustain electrodes, 3D glasses including a left eye lens, a right eye lens, and an auxiliary emitter signal generator, and a plurality of subfields. An image on a screen of the plasma display panel with a frame including a field; and a driver for transmitting an emitter signal to the 3D glasses, and an average power level of the input image frame. The application time of the emitter signal is changed according to an average power level (APL), and the auxiliary emitter signal generator of the 3D glasses is configured to block the transmission of the emitter signal from the driver. The emitter signal corresponding to the average power level may be generated.

The driver may transmit average power level information of an image frame input to the 3D glasses.

The present invention has an effect of preventing the luminance deterioration at high APL by changing the application point of the emitter signal according to the average power level.

1 to 6 are views for explaining the configuration and driving method of the three-dimensional plasma display device;
7 to 10 are diagrams for explaining the emitter signal;
11 to 14 are diagrams for explaining the average power level (APL);
15 to 28 are views for explaining the driving method of the three-dimensional plasma display device according to the present invention in more detail;
29 to 34 are views for explaining another driving method of the stereoscopic plasma display device according to the present invention in more detail; And
35 to 41 are views for explaining a driving method when the supply of the emitter signal is cut off.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to according to the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. It is to be understood that the present invention is not intended to be limited to the specific embodiments but includes all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In describing the present invention, terms such as first and second may be used to describe various components, but the components may not be limited by the terms. The terms may be used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The term and / or may include a combination of a plurality of related items or any item of a plurality of related items.

When an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may be present in between Can be understood. On the other hand, when it is mentioned that an element is "directly connected" or "directly connected" to another element, it can be understood that no other element exists in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. The singular expressions may include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used interchangeably to designate one or more of the features, numbers, steps, operations, elements, components, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries can be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are, unless expressly defined in the present application, interpreted in an ideal or overly formal sense .

In addition, the following embodiments are provided to explain more fully to the average person skilled in the art. The shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 to 6 are views for explaining the configuration and driving method of the three-dimensional plasma display device.

Referring to FIG. 1, the 3D plasma display apparatus may include a plasma display panel 100 and a driver.

Herein, the driver includes a data driver 101, a scan driver 102, a sustain driver 103, a 3D glasses 300, a timing controller 400, a signal transmitter 410, and a 3D glasses control. It may include a unit (CTR, 310).

In FIG. 1, only the case where the data driver 101, the scan driver 102, and the sustain driver 103 have different board shapes are illustrated. However, the data driver 101, the scan driver 102, and the sustain driver 103 have different board shapes. At least two of the drivers 103 may be formed or integrated in one borough. For example, it may be possible for the scan driver 102 and the sustain driver 103 to be formed on one board.

The data driver 101 may supply driving signals such as data signals to the address electrodes X1 to Xm of the plasma display panel 100.

The scan driver 102 may supply driving signals such as scan signals to the scan electrodes Y1 to Yn of the plasma display panel 100.

The sustain driver 103 may supply driving signals such as a sustain signal to the sustain electrodes Z1 to Zn of the plasma display panel 100.

The timing controller 400 may supply a predetermined timing control signal to the data driver 101, the scan driver 102, the sustain driver 103, and the signal transmitter 410 to control the timing of each driving signal. .

In addition, the timing controller 400 obtains information on the average power level of the input image data calculated by the APL calculation unit (not shown), and according to the obtained average power level, the left eye lens 301 and the right eye of the 3D glasses 300 are obtained. An emitter signal ES may be generated to control on / off of the lens 302.

The signal transmitter 410 may transmit the emitter signal ES through wired or wireless communication under the control of the timing controller 400. Here, the signal transmitter 410 for transmitting the emitter signal ES may be referred to as an emitter. The emitter signal ES may be changed in various formats.

The 3D glasses control unit 310 may turn on / off the left eye lens 301 and the right eye lens 302 of the 3D glasses 300 according to the emitter signal ES received from the signal transmitter 410.

In detail, the timing controller 400 turns on the left eye lens 301 in correspondence with the left eye frame, and emitter signal (Turn-On) corresponding to the right eye frame to turn on the right eye lens 302. ES is generated and transmitted through the signal transmitter 410, and the 3D glasses controller 310 receives the emitter signal ES to turn on / off the left eye lens 301 and the right eye lens 302. You can control the off.

Preferably, the timing controller 400 supplies the timing control signal, that is, the emitter signal ES, to the 3D glasses 300 through the signal transmission unit 410, so that the timing of the left eye lens 301 and the right eye lens 302 is reduced. The turn-on time and the turn-off time may be controlled.

As described above, in order for the left eye lens 301 and the right eye lens 302 to be turned on / off according to the emitter signal ES, the molecular arrangement of the left eye lens 301 and the right eye lens 302 is changed according to the applied voltage. It may be desirable to include a liquid crystal layer (not shown).

Accordingly, the viewer wearing the 3D glasses 300 recognizes the image according to the left eye frame by the left eye and the image according to the right eye frame by the right eye, thereby visualizing the stereoscopic image on the screen of the plasma display panel 100. The effect can be obtained.

2 is a diagram for explaining a plasma display panel.

The plasma display panel 100 may implement an image using a left frame including at least one sub-field and a right frame including at least one sub-field.

As shown in FIG. 1, the plasma display panel 100 includes a rear substrate 211 having a plurality of second electrodes 213 and X intersecting with the plurality of first electrodes 202 (Y) and 203 (Z). It may include.

Here, the first electrodes 202 and 203 may include scan electrodes 202 and Y parallel to each other, and sustain electrodes 203 and Z, and the second electrode 211 may be referred to as an address electrode.

On the front substrate 201 where the scan electrodes 202 and Y and the sustain electrodes 203 and Z are formed, the discharge currents of the scan electrodes 202 and Y and the sustain electrodes 203 and Z are limited and the scan electrodes 202 and Y are restricted. ) And an upper dielectric layer 204 may be arranged to insulate between the sustain electrodes 203 and Z.

A protective layer 205 may be formed on the front substrate 201 where the upper dielectric layer 204 is formed to facilitate discharge conditions. The protective layer 205 may include a material having a high secondary electron emission coefficient, such as magnesium oxide (MgO) material.

The address electrodes 213 and X are formed on the rear substrate 211, and the address electrodes 213 and X are covered on the upper side of the rear substrate 211 on which the address electrodes 213 and X are formed. A lower dielectric layer 215 may be formed that insulates X).

On top of the lower dielectric layer 215, a partition space 212, such as a stripe type, a well type, a delta type, a honeycomb type, etc., is formed on the discharge space, that is, to partition the discharge cells. Can be. Accordingly, the first discharge cell emitting red (R) light, the second discharge cell emitting blue (B) light, and the green (Green) light between the front substrate 201 and the rear substrate 211. : G) A third discharge cell or the like that emits light can be formed.

The partition 212 may include a first partition 212b and a second partition 212a, and a height of the first partition 212b and a height of the second partition 212a may be different from each other.

In the discharge cell, the address electrode 213 may cross the scan electrode 202 and the sustain electrode 203. That is, the discharge cell is formed at the point where the address electrode 213 crosses the scan electrode 202 and the sustain electrode 203.

A predetermined discharge gas may be filled in the discharge cell partitioned by the partition wall 212.

In addition, a phosphor layer 214 that emits visible light for image display may be formed in the discharge cells partitioned by the partition wall 212. For example, a first phosphor layer that generates red light, a second phosphor layer that generates blue light, and a third phosphor layer that generates green light may be formed.

In addition, the address electrode 213 formed on the rear substrate 211 may have substantially the same width or thickness, but the width or thickness inside the discharge cell may be different from the width or thickness outside the discharge cell. . For example, the width or thickness inside the discharge cell may be wider or thicker than that outside the discharge cell.

When a predetermined signal is supplied to at least one of the scan electrode 202, the sustain electrode 203, and the address electrode 213, discharge may occur in the discharge cell. As such, when discharge is generated in the discharge cell, ultraviolet rays may be generated by the discharge gas filled in the discharge cell, and the ultraviolet rays may be irradiated onto the phosphor particles of the phosphor layer 214. Then, a predetermined image may be displayed on the screen of the plasma display panel 100 by the phosphor particles irradiated with ultraviolet rays to emit visible light.

FIG. 3 is a diagram for explaining an example of a frame for implementing a stereoscopic image.

Referring to FIG. 3, a frame for implementing gray levels of a stereoscopic image may include a plurality of sub-frames including at least one subfield. For example, as shown in FIG. 3, one frame may include a first sub-frame and a second sub-frame each including at least one subfield.

Here, the first sub frame may be a left frame corresponding to the left eye lens, and the second sub frame may be a right frame corresponding to the right eye lens. That is, in FIG. 3, the left eye frame according to the left eye image and the right eye frame according to the right eye image are included in one frame period.

Meanwhile, the positions of the first subframe and the second subframe may be interchanged. In addition, the number of subfields included in each subframe may be variously changed.

In addition, the subfield is a sustain period for implementing gradation according to an address period and a number of discharges for selecting a discharge cell in which discharge will not occur or a discharge cell in which discharge occurs. It may include.

For example, each of the first subframe and the second subframe includes seven subfields SF1-SF7 and SF8-SF14 to implement 128 gray levels, and each subfield includes an address period and a sustain period. can do.

Alternatively, at least one subfield of the plurality of subfields of the frame may further include a reset period for initialization. Preferably, the first subfield of each subframe may include a reset period in which a reset signal is supplied to the scan electrode.

Meanwhile, the weight of the corresponding subfield may be set by adjusting the number of sustain signals supplied in the sustain period. That is, a predetermined weight can be given to each subfield using the sustain period. For example, the weight of each subfield is 2 ⁿ by setting the weight of the first subfield to 2 ⁰ and the weight of the second subfield to 2 ¹ (where n = 0, 1, 2, 3, 4, 5, 6) can be set to increase. As described above, gray levels of various images may be realized by adjusting the number of sustain signals supplied in the sustain period of each subfield according to the weight in each subfield.

3 illustrates only the case where the number of subfields constituting the first subframe and the second subframe is the same, the number of subfields constituting the first subframe and the second subframe is different. It is possible.

Referring to FIG. 4, the left eye frame and the right eye frame may each constitute one frame period. For example, the first frame F1 and the third frame F3 of the plurality of frames continuously supplied are left frame, and the second frame F2 and fourth frame F4 are right eye frame. It may be (Right Frame).

As described above, the left eye frame and the right eye frame may be included in one frame period, and the left eye frame and the right eye frame may be composed of different frame periods, respectively.

Referring to the implementation method of the stereoscopic image, as shown in FIG. 5, when the image according to a total of 120 frames (120 ms) is implemented in one second, 60 right eye frames R and 60 left eye frames L are shown. Can be implemented alternately. In this case, in the right eye frame R, the right eye lens 302 is turned on and the left eye lens 301 is turned off, and in the left eye frame L, the left eye lens 301 is turned on and the right eye lens 302 is turned on. ) May be turned off. In this case, each of the left eye frame L and the right eye frame R constitutes one frame period.

As shown in FIG. 3, one left eye frame L and one right eye frame L may form one frame period. In this case, when images corresponding to a total of 60 frames (60 ms method) are implemented in one second, 60 right eye frames R and 60 left eye frames L may be alternately implemented.

6 is a view for explaining an example of a driving waveform for driving a plasma display panel.

Referring to FIG. 6, the reset signal RS may be supplied to the scan electrode Y in a reset period RP for initializing at least one subfield among a plurality of subfields. Here, the reset signal RS may include a rising ramp signal (Ramp-Up: RU) in which the voltage gradually rises and a falling ramp signal (Ramp-Down: RD) in which the voltage gradually falls.

For example, the rising ramp signal RU may be supplied to the scan electrode in the setup period SU of the reset period, and the falling ramp signal RD may be supplied to the scan electrode in the setdown period SD after the setup period. .

When the rising ramp signal is supplied to the scan electrode, a weak dark discharge, that is, setup discharge, occurs in the discharge cell by the rising ramp signal. By this setup discharge, the distribution of wall charges can be uniform in the discharge cells.

After the rising ramp signal is supplied, when the falling ramp signal is supplied to the scan electrode, a weak erase discharge, that is, a setdown discharge, occurs in the discharge cell. By this set-down discharge, wall charges such that address discharge can be stably generated can be uniformly retained in the discharge cells.

In the address period AP after the reset period, the scan reference signal Ybias having a voltage higher than the lowest voltage of the falling ramp signal may be supplied to the scan electrode.

In addition, in the address period, the scan signal Sc that falls from the voltage of the scan reference signal Ybias may be supplied to the scan electrode.

Meanwhile, the pulse width of the scan signal supplied to the scan electrode in the address period of at least one subfield may be different from the pulse width of the scan signal of another subfield. For example, the width of the scan signal in the subfield located later in time may be smaller than the width of the scan signal in the preceding subfield. In addition, the reduction of the scan signal width according to the arrangement order of the subfields can be made gradually, such as 2.6 Hz (microseconds), 2.3 Hz, 2.1 Hz, 1.9 Hz, or 2.6 Hz, 2.3 Hz, 2.3 Hz, 2.1 Hz. .... 1.9 ㎲, 1.9 ㎲ and so on.

As such, when the scan signal is supplied to the scan electrode, the data signal Dt may be supplied to the address electrode X corresponding to the scan signal.

When the scan signal and the data signal are supplied, an address discharge may be generated in the discharge cell to which the data signal is supplied while the voltage difference between the scan signal and the data signal and the wall voltage generated by the wall charges generated in the reset period are added. .

In addition, the sustain reference signal Zbias signal may be supplied to the sustain electrode in the address period in which the address discharge occurs so that the address discharge is effectively generated between the scan electrode and the address electrode.

In the sustain period SP after the address period, the sustain signal SUS may be supplied to at least one of the scan electrode and the sustain electrode. For example, a sustain signal may be alternately supplied to the scan electrode and the sustain electrode.

When such a sustain signal is supplied, the discharge cell selected by the address discharge is added with the wall voltage in the discharge cell and the sustain voltage Vs of the sustain signal, and a sustain discharge, i.e., display between the scan electrode and the sustain electrode when the sustain signal is supplied. Discharge may occur.

7 to 10 are diagrams for explaining the emitter signal. Hereinafter, the description of the parts described in detail above will be omitted. For example, the following method may be applied to a case in which a left eye frame and a right eye frame are included together in one frame period, and may also be applied to a case in which the left eye frame and the right eye frame respectively form different frame periods.

Referring to FIG. 7, the emitter signal ES may be a signal for turning-on or turning-off the left eye lens 301 or the right eye lens 302 of the 3D glasses. For example, when the emitter signal ES is applied to the 3D glasses, the left eye lens 301 may be turned on and the right eye lens 302 may be turned off. In addition, when the emitter signal ES is applied to the 3D glasses, the right eye lens 302 may be turned on and the left eye lens 301 may be turned off.

The emitter signal ES is located between two consecutive frames, and can be located between the left eye frame and the right eye frame.

For example, the emitter signal ES is applied to the 3D glasses between the first frame F1 and the second frame F2 so that the left eye lens 301 may be turned on, and the first and second frames may be turned on. The emitter signal ES is applied to the 3D glasses between the left eye frame and the right eye frame in F1 and F2 so that the left eye lens 301 can be turned off and the right eye lens 302 can be turned on.

In the case of FIG. 7, it can be seen that the emitter signal ES is applied between the left eye frame and the right eye frame.

Alternatively, as in the case of FIG. 8, the emitter signal ES is not applied to the 3D glasses between the left eye frame and the right eye frame in one frame, and the emitter signal ES between two consecutive frames. Can be applied to the 3D glasses.

In this case, the left eye lens 301 and the right eye lens 302 of the left eye frame 302 and the right eye frame to distinguish between the left eye frame and the right eye frame at a time corresponding to approximately half of the period T / 2 of the emitter signal ES. You can switch on and off. To this end, in the 3D glasses control unit 310 of FIG. 1, after checking one cycle T of the emitter signal ES, about half of the cycle T of the emitter signal ES (T / 2) Calculates a viewpoint corresponding to the position of the left eye lens 301 and the right eye lens 302 at a time point corresponding to about half of the period T / 2 of the emitter signal ES. It is possible to switch on / off.

8, it can be seen that the emitter signal ES is applied between two frames.

As shown in FIG. 9, the emitter signal ES is applied between two frames even when the left eye frame and the right eye frame each form one frame period. This case has been described with reference to FIG. 4.

As shown in FIGS. 7 to 9, the emitter signal ES is applied to the 3D glasses between the left eye frame and the right eye frame included in one frame, or is applied to the 3D glasses between two consecutive frames. It is possible.

The shape of the signal of the emitter signal ES may be changed in various ways. For example, as shown in FIG. 10A, the emitter signal ES may be configured by a plurality of pulses ESP1 to ESP5.

In this case, it may be recognized that the emitter signal ES is applied by checking the last pulse ESP5 of the emitter signal ES in the 3D glasses. For example, when the 3D glasses recognize only the first four pulses ESP1 to ESP4 among the pulses of the emitter signal ES and do not recognize the last pulse ESP5, the input signal may be recognized as noise. . As a result, malfunction of the 3D glasses due to noise can be suppressed.

Alternatively, as shown in FIG. 10B, the plurality of pulses ESP1 to ESP3 may be configured, and at least one of the plurality of pulses ESP1 to ESP3 may have a different form from the rest. For example, the pulse width T1 of the first pulse ESP1 among the plurality of pulses ESP1 to ESP3 constituting the emitter signal ES may be larger than the rest T2.

Even in this case, malfunction of the 3D glasses due to noise can be suppressed.

Alternatively, the emitter signal ES for turning on the left eye lens 301 and the emitter signal ES for turning on the right eye lens 302 may be configured differently. For example, when the emitter signal ES is positioned between the left eye frame and the right eye frame, whether the emitter signal ES currently input is a signal corresponding to the left eye lens 301 or not. In order to distinguish whether the signal is a corresponding signal, the emitter signal ES for turning on the left eye lens 301 is configured as shown in FIG. 10 (a) and Emmy for turning on the right eye lens 302. The emitter signal ES can be configured in the form as shown in FIG.

In such a case, it is possible to improve the operational stability of the 3D glasses.

11 to 14 are diagrams for describing the average power level APL.

Referring to FIG. 11, a concept of average power level (APL) is illustrated.

Average power level (APL) may be a method of adjusting the number of sustain signals in consideration of power consumption. In detail, the number of sustain signals allocated to one frame may be reduced in a direction of increasing power consumption, and the number of sustain signals allocated to a frame may be increased in a direction of decreasing power consumption.

For example, as shown in (a), when an image is displayed on a relatively small area on the screen of the plasma display panel (in this case, APL may be relatively low), power consumption may be relatively low. The number of sustain signals allocated to a frame can be relatively large. Then, the overall brightness of the image can be increased.

On the contrary, when the image is displayed on a relatively large area on the screen of the plasma display panel as shown in (b) (in this case, the APL may be relatively high), power consumption may be relatively high. The number of sustain signals allocated to one frame can be made relatively small. This prevents excessive power consumption.

Specifically, when the average power level is a level, the number of sustain signals allocated to one frame in this case is N, and when the average power level is b level higher than the a level, The number may be less than N M pieces.

For example, as shown in the table shown in FIG. 12, the number of sustain signals allocated to each subfield and the total number of sustain signals of the corresponding frame may be set according to the average power level in one frame. 12, when the average power level is 40 levels, the total number of sustain signals allocated to one frame is approximately 512. When the average power level is 987 levels, the total number of sustain signals allocated to one frame is You can see 256.

The table in FIG. 12 is arbitrarily set and the present invention may not be limited thereto.

As described above, if the average power level of the input image data increases, the total number of sustain signals allocated to one frame decreases. If the average power level decreases, the total number of sustain signals allocated to one frame increases. The length of the period during which the driving signal is supplied for one frame may vary depending on the power level.

For example, as shown in FIG. 13, when the average power level is 987 levels, the length of the period in which the driving signal is supplied may be shorter by D1 than in the case of the 40 levels.

Accordingly, as in the case of FIG. 14, the pause period is long enough after the period in which the driving signal is supplied within one frame period (for example, 16.67 ms) at the 987 level as compared with the case where the average power level is 40 levels. ) May be arranged.

15 to 28 are views for explaining the driving method of the three-dimensional plasma display device according to the present invention in more detail. Hereinafter, the description of the parts described in detail above will be omitted. For example, the emitter signal ES may be applied to the 3D glasses between the left eye frame and the right eye frame included in one frame, or may be applied to the 3D glasses between two consecutive frames. . In addition, the shape of the emitter signal ES may be variously changed.

In general, the average power level of the image data may be calculated in units of frames. In consideration of this, hereinafter, the case where the emitter signal ES is applied between two consecutive frames will be described as an example.

Of course, it may be possible to further supply an emitter signal between the left eye frame and the right eye frame included in one frame below.

In addition, the emitter signal corresponding to the predetermined frame is a signal for turning on either one of the left eye lens and the right eye lens in response to the image data of the frame.

If a left eye subframe is disposed first in an A frame and a right eye subframe is disposed after a left eye subframe, the emitter signal corresponding to the A frame turns the left eye lens corresponding to the left eye subfield of the A frame. May be a signal for turning on.

In contrast, when the right eye subframe is disposed first in an A frame and the left eye subframe is disposed after the right eye subframe, the emitter signal corresponding to the A frame is configured to correspond to the right eye lens corresponding to the right eye subfield of the A frame. It may be a signal for turning on.

Referring to FIG. 15, an application time point of the emitter signal ES may be changed according to an average power level APL of the input image data. Preferably, when the average power level of the input image data is changed, the application point of the emitter signal ES may be changed. More preferably, when the average power level is increased, the time difference between a predetermined emitter signal and the start point of any A frame corresponding to the emitter signal increases, or the end point of the A frame and the next emitter signal are increased. It is possible that the point of application of the emitter signal is changed so that the time difference therebetween increases.

Here, it may be preferable to change the timing of applying the emitter signal ES in the timing controller 400 of FIG. 1. That is, the 3D glasses 300 may be regarded as receiving the emitter signal ES whose application time is adjusted according to the average power level of the image data through the signal transmitter 410.

For example, as in the case of FIG. 15, the average power level of the first, second frames F1 and F2 among the consecutive first, second, third and fourth frames F1, F2, F3 and F4 is 40th level. Assume that APL40 is the average power level of the third and fourth frames F3 and F4 is the 987th level APL987.

In this case, the average power level of the image data after the second frame F2 may be regarded as being increased from the 40th level APL40 to the 987th level APL987.

Here, the emitter signal ES corresponding to the next frame of the third frame F3 having the increased average power level, that is, the fourth frame F4, corresponds to the second frame F2 which is a frame immediately before the average power level is increased. The application time can be advanced by T1 time compared to the emitter signal ES. In FIG. 15, the emitter signal ES corresponding to the fourth frame F4 is shifted to the left by T1.

In other words, when the average power level of the input image data increases, the application point of the emitter signal ES may be pulled.

As described above, when the average power level of the input image data becomes high, the reason why the application time of the emitter signal ES may be advanced is that when the average power level increases, the total number of sustain signals allocated to the frame decreases. This is because the total length of the frame, that is, the length of the period during which the drive signal of the frame is supplied, can be reduced.

Further, when the start point of the frame, i.e., the start point of the period in which the driving signal of the frame is supplied, is substantially fixed when the average power level is increased, the end point of the frame, that is, the end of the period in which the driving signal of the frame is supplied. The point of view is pulled.

Here, when the emitter signal is set corresponding to the end time of the period in which the driving signal of the frame is supplied, the application point of the emitter signal corresponding to the next frame of the frame can be obtained.

Therefore, as in the case of FIG. 16, even if the application time of the emitter signal ESc corresponding to the third frame F3 is advanced, the time required for driving the second frame F2 may be prevented from running out.

In addition, before the image corresponding to the third frame F3 is implemented, the left eye lens or the right eye lens of the 3D glasses may be completely turned on. Accordingly, in the third frame F3, it is possible to prevent the amount of light from decreasing by preventing the third frame F3 from starting before the left eye lens or the right eye lens is completely turned on. Accordingly, it is possible to prevent the luminance of the implemented 3D image from decreasing.

As such, as the application point of the emitter signal ES is changed according to the average power level of the input image data, the interval (or time difference) between two consecutive emitter signals may also vary.

For example, as in the case of FIG. 16, the average power level of the first frame F1 is the 40th level APL40, and the average power level of the second frame F2 continuous to the first frame F1 is In the case of increasing to the 987th level APL987, the emitter signal ESc and the second frame F2 corresponding to the next frame of the second frame F2 having the increased average power level, that is, the third frame F3. The time difference (interval) D2 between the emitter signals ESb corresponding to the emitter signals ESa corresponding to the first frame F1 and the emitter signals ESb corresponding to the second frame F2 It may be less than the time difference (D1). This is because the total number of the sustain signals allocated to the second frame F2 is smaller than the total number of the sustain signals allocated to the first frame F1, so that the length of the period during which the driving signal of the second frame F2 is supplied is zero. This is because the driving signal of one frame F1 may be shorter than the length of the period in which it is supplied.

In other words, since the supply time of the current emitter signal ES is set based on the end of the previous frame, the average power level of the previous frame (n-1 frame) is the average of the previous frame (n-2 frame). When the power level is higher, the time difference between the current emitter signal ES and the emitter signal ES corresponding to the previous frame (n-1 frame) is equal to the emitter signal ES corresponding to the previous frame and the previous frame. It becomes smaller than the time difference between the emitter signals ES corresponding to (n-2 frames).

Alternatively, when the average power level of the third frame F3 is lower than or equal to the average power level of the second frame F2, the emitter signal ESb and the third frame F3 corresponding to the second frame F2 may be used. The time difference D2 of the emitter signal ESc corresponding to) corresponds to the emitter signal ESc corresponding to the third frame F3 and the fourth frame F4 after the third frame F3. It may be desirable to be less than or equal to the time difference D4 of the emitter signal ESd.

For example, when the average power level of the third frame F3 after the second frame F2 is the 987th level APL987 equal to the average power level of the second frame F2, that is, the second frame F2. When the total number of the sustain signals allocated to the third frame F3 and the total number of the sustain signals allocated to the third frame F3 are substantially the same, the emitter signal ESc and the third frame corresponding to the third frame F3 ( The time difference D2 between the emitter signal ESd corresponding to the fourth frame F4 after F3) corresponds to the emitter signal ESc and the second frame F2 corresponding to the third frame F3. It may be greater than the time difference D2 between the emitter signals ESb.

Here, the time difference D2 between the emitter signal ESc corresponding to the third frame F3 and the emitter signal ESd corresponding to the fourth frame F4 after the third frame F3 may be the first. It is possible to be approximately equal to the time difference D1 between the emitter signal ESa corresponding to the frame F1 and the emitter signal ESb corresponding to the second frame F2.

Alternatively, as in the case of FIG. 17, the average power level of the first frame F1 is the 40th level APL40, the average power level of the second frame F2 is the 987th level APL987, and the third frame. The emitter signal ESc and the third frame F3 corresponding to the third frame F3 when the average power level of F3 is lower than the average power level of the second frame F2 as the 40th level APL40. ) And the time difference D5 between the emitter signal ESd corresponding to the fourth frame F4) corresponds to the emitter signal ESb corresponding to the second frame F2 and the third frame F3. It may be greater than the time difference D2 between the emitter signals ESc.

In addition, when the average power level of the third frame F3 is lower than the average power level of the second frame F2, after the emitter signal ESc and the third frame F3 corresponding to the third frame F3. The time difference D5 between the emitter signal ESd corresponding to the fourth frame F4 of the emitter corresponds to the emitter signal ESa corresponding to the first frame F1 and the emitter corresponding to the second frame F2. It is also possible to be larger than the time difference D1 between the signals ESb.

If the average power level of the input image data is maintained substantially constant, the time difference between two consecutive emitter signals ES may be maintained substantially constant.

For example, as in the case of FIG. 18, when the average power level is from the first frame F1 to the fifth frame F5 at the first level APL1, for example, the 40th level, the first frame F1 is applied to the first frame F1. The time difference between two emitter signals ES continuous from the corresponding emitter signal ES to the emitter signal ES corresponding to the sixth frame F6 may be approximately the same as D10.

In addition, when the average power level of the sixth frame F11 to the fifth frame F15 is the second level APL2, for example, the 987th level, the emitter signal ES corresponding to the twelfth frame F12 is started. The time difference between two emitter signals ES continuous up to the emitter signal ES corresponding to the sixteenth frame F16 may be approximately the same as D10.

That is, when the average power level is maintained substantially constant, the time difference between two consecutive emitter signals ES may be maintained regardless of the value of the average power level.

Referring to FIG. 19, the average power level of the first and second frames F1 and F2 among the consecutive first, second, third and fourth frames F1, F2, F3, and F4 is the 40th level APL40. When the average power level of the 3rd and 4th frames F3 and F4 is the 987th level APL987, the Emmy corresponding to the next frame of the third frame F3 having the increased average power level, that is, the fourth frame F4 The application point of the data signal ES may be advanced.

Accordingly, the time difference L2 between the emitter signal ESb corresponding to the second frame F2 and the start time of the second frame F2 is the emitter signal ESd corresponding to the fourth frame F4. And a time difference L4 at the start of the fourth frame. Preferably, the time difference L2 between the emitter signal ESb corresponding to the second frame F2 and the start time of the second frame F2 is the emitter signal ESd corresponding to the fourth frame F4. ) And a time difference L4 between the start time point of the fourth frame.

In FIG. 19, a case in which a left frame and a right frame are configured as one independent frame period will be described as an example. This has been described in detail above with reference to FIGS. 4 and / or 9. In this case, the last subfield among the plurality of subfields included in the frame may be the last subfield of the left eye frame or the last subfield of the right eye frame. Also, the first subfield among the plurality of subfields included in the frame may be the first subfield of the left eye frame or the first subfield of the right eye frame.

As in the case of FIG. 8, when one frame is composed of a first sub-frame, that is, a left eye frame and a second sub-frame, that is, a right eye frame, The last subfield of the plurality of subfields included may be the second subframe, that is, the last subfield of the right eye frame, and the first subfield of the plurality of subfields included in the frame may be the first subframe, It may be the first subfield.

In addition, in FIG. 19, the second frame F2, the emitter signal Eb corresponding thereto, the fourth frame F4, and the emitter signal ESd corresponding thereto are illustrated as examples for convenience of description. The time difference between the emitter signal ESc corresponding to the third frame F3 and the start time of the third frame F3 is the start time of the emitter signal ESd corresponding to the fourth frame F4 and the fourth frame. It is also possible to be smaller than the time difference L4. The reason is that since the average power level is higher than the average power level of the previous frame from the third frame F3, the emitter signal ESc and the third frame F3 corresponding to the third frame F3 are therefore increased. This is because the time difference between the start time may be substantially the same as the time difference L2 between the emitter signal ESb corresponding to the second frame F2 and the start time of the second frame F2.

In addition, for convenience of driving, the time difference L1 between the emitter signal ESb corresponding to the second frame F2 and the end time of the previous frame, that is, the first frame F1 is determined by the fourth frame F4. The time difference L3 between the emitter signal ESd corresponding to and the end time point of the previous frame, that is, the third frame F3 may be substantially the same. This case may be implemented when the application time of the emitter signal ES is set corresponding to the end time of each frame.

The start point of the above-mentioned frame may correspond to or substantially the same as the point of time of applying the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the plurality of subfields of the frame.

In addition, the end point of the frame corresponds to or is substantially the same as the end point of the last sustain signal of the sustain signals supplied to any one of the scan electrode and the sustain electrode of the plasma display panel in the reset period of the last subfield of the plurality of subfields of the frame. can do.

In consideration of this, the present invention is described below from another viewpoint. Here, a case where one frame has the same structure as in FIG. 8 will be described.

Referring to FIG. 20, the emitter signal ESb corresponding to the second frame F2 having an average power level of 40th level APL40 and the first subfield SF1a of the second frame F2, for example, the left eye sub The time difference L20 between application points of the reset signal RS supplied to the scan electrode in the reset period RP of the first subfield SF1a of the frame is a fourth frame having an average power level of 987 levels APL987. In the reset period RP of the emitter signal ESd corresponding to F4 and the first subfield SF1a of the fourth frame F4, for example, the first subfield SF1a of the left eye subframe, to the scan electrode. It may be smaller than the time difference L40 between the application time of the supplied reset signal RS.

Further, the emitter signal ESb corresponding to the second frame F2 having the average power level 40th level APL40 and the frame before the second frame F2, that is, the last subfield of the first frame F1. (SFnb), for example, the time difference L10 between the last sustain signal SUSL supplied to the scan electrode and / or the sustain electrode in the sustain period of the last subfield SFnb of the right eye subframe may have an average power level of 987 levels ( The emitter signal ESd corresponding to the fourth frame F4, which is APL987), and the frame before the fourth frame F4, ie, the last subfield SFnb of the third frame F3, for example, the last of the right eye subframe. In the sustain period of the subfield SFnb, the time difference L30 between the last sustain signal SUSL supplied to the scan electrode and / or the sustain electrode may be approximately equal to (approximately).

Hereinafter, another method of changing the application point of the emitter signal according to the average power level will be described. Hereinafter, the description of the parts described in detail above will be omitted.

Referring to FIG. 21, when the average power level is increased, it is possible to delay the time of applying the emitter signal. For example, when the average power level is increased, the point of application of the emitter signal such that the time difference between the predetermined emitter signal and the end of the next frame of the A frame corresponding to the emitter signal, that is, the A + 1 frame increases. It is possible to change this.

For example, as in the case of Figure 21, the average power level of the first, second, frames (F1, F2) of the continuous first, second, third, fourth frame (F1, F2, F3, F4) is the 40th level Assume that APL40 is the average power level of the third and fourth frames F3 and F4 is the 987th level APL987.

Here, the emitter signal ESc corresponding to the third frame F3 having the increased average power level is T2 time compared to the emitter signal ESa corresponding to the first frame F1 which is the frame before the average power level is increased. The application time can be delayed as much. In FIG. 21, the emitter signal ESc corresponding to the third frame F3 is moved to the right by T2.

In other words, when the average power level of the input image data increases, the application point of the emitter signal ES may be delayed, that is, delayed.

As described above, when the average power level of the input image data increases, the reason why the application time of the emitter signal ES may be delayed is that as the average power level increases, the total number of sustain signals allocated to the frame decreases. As a result, the total length of the frame, that is, the length of the period during which the driving signal of the frame is supplied can be reduced, and when the average power level increases, the end of the frame, that is, the end of the period during which the driving signal of the frame is supplied. When it is substantially fixed, the start time of the frame, that is, the start time of the period in which the driving signal of the frame is supplied may be delayed.

Here, when the emitter signal is set corresponding to the start time of the period in which the driving signal of the frame is supplied, the effect of delaying the application point of the emitter signal corresponding to the frame may be obtained.

Therefore, as in the case of FIG. 21, even if the application time of the emitter signal ESc corresponding to the third frame F3 is delayed by T2, the time required for driving the third frame F3 is prevented from being insufficient. Can be.

In addition, after the image corresponding to the second frame F2 or the third frame F3 is substantially completely finished, the left eye lens or the right eye lens of the 3D glasses may be turned on. Accordingly, it is possible to prevent mixing of the image corresponding to the second frame F2 and the image corresponding to the third frame F3. For example, it is possible to prevent a crosstalk phenomenon in which an image corresponding to the right eye subframe of the second frame F2 and an image corresponding to the left eye subframe of the third frame F3 are mixed. .

Even in this case, the spacing (or time difference) between two consecutive emitter signals may also vary.

For example, as in the case of FIG. 22, the average power level of the first frame F1 is the 40th level APL40, and the average power level of the second frame F2 continuous to the first frame F1 is When increasing to the 987th level APL987, the time difference D11 between the emitter signal ESa corresponding to the first frame F1 and the emitter signal ESb corresponding to the second frame F2 is It may be larger than the time difference D12 between the emitter signal ESb corresponding to the second frame F2 and the emitter signal ESc corresponding to the third frame F3. This is because the total number of the sustain signals allocated to the second frame F2 is smaller than the total number of the sustain signals allocated to the first frame F1, so that the length of the period during which the driving signal of the second frame F2 is supplied is zero. This is because the driving signal of one frame F1 may be shorter than the length of the period in which it is supplied.

In other words, since the starting point of the current emitter signal ES is set based on the start of the current frame, the average power level of the current frame (n frame) is the average power level of the previous frame (n-1 frame). In this case, the time difference between the current emitter signal ES and the emitter signal ES corresponding to the previous frame (n-1 frame) increases.

In addition, when the average power level of the third frame F3 and the fourth frame F4 is substantially the same as the average power level of the second frame F2, the emitter signal ESb corresponding to the second frame F2 ) And the time difference D12 between the emitter signal ESc corresponding to the third frame F3 is the fourth signal after the emitter signal ESc corresponding to the third frame F3 and the third frame F3. It is possible to be substantially equal to the time difference D13 of the emitter signal ESd corresponding to the frame F4.

Alternatively, as in the case of FIG. 23, when the average power level of the third frame F3 is lower than the average power level of the second frame F2, the emitter signal ESb corresponding to the second frame F2 and The time difference D14 of the emitter signal ESc corresponding to the third frame F3 is the emitter signal ESc corresponding to the third frame F3 and the fourth frame after the third frame F3 ( It may be smaller than the time difference D15 of the emitter signal ESd corresponding to F4).

Referring to FIG. 24, the average power level of the first and second frames F1 and F2 among the consecutive first, second, third, and fourth frames F1, F2, F3, and F4 is the 40th level APL40. When the average power level of the third and fourth frames F3 and F4 is the 987th level APL987, the emitter signal ES corresponding to the third frame F3 and the fourth frame F4 having the increased average power level is increased. ) Can be accelerated.

Accordingly, the time difference L1 between the emitter signal ESb corresponding to the second frame F2 and the end point of the first frame F1 is the emitter signal ESd corresponding to the fourth frame F4. And a time difference L5 at the end of the third frame F3. Preferably, the time difference L1 between the emitter signal ESb corresponding to the second frame F2 and the end point of the first frame F1 is the emitter signal ESd corresponding to the fourth frame F4. ) And the time difference L5 between the start time of the third frame F3.

In FIG. 24, for convenience of description, emitter signals Eb corresponding to the first frame F1 and the second frame F2, emitter signals corresponding to the third frame F3, and the fourth frame F4. Although the case of ESd is taken as an example, the time difference between the emitter signal ESc corresponding to the third frame F3 and the end point of the second frame F2 is the emitter signal corresponding to the second frame F2. It is also possible to be larger than the time difference L1 between the ESb and the end point of the first frame F1.

In addition, for convenience of driving, the time difference L2 between the emitter signal ESb corresponding to the second frame F2 and the start time of the second frame F2 may correspond to the fourth frame F4. The time difference L6 between the start signal ESd and the start time point of the fourth frame F4 may be about the same. This case may be implemented when the application time of the emitter signal ES is set corresponding to the start time of each frame.

The start point of the above-mentioned frame may correspond to or substantially the same as the point of time of applying the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the plurality of subfields of the frame.

In addition, the end point of the frame corresponds to or is substantially the same as the end point of the last sustain signal of the sustain signals supplied to any one of the scan electrode and the sustain electrode of the plasma display panel in the reset period of the last subfield of the plurality of subfields of the frame. can do. Since it has been described in detail above, redundant descriptions are omitted.

Hereinafter, another method of changing the application point of the emitter signal according to the average power level will be described. Hereinafter, the description of the parts described in detail above will be omitted.

Referring to FIG. 25, the time difference between the emitter signal and the start point of the frame may be changed according to the average power level, and the time difference between the emitter signal and the end point of the frame may be changed.

For example, as in the case of FIG. 25, the average power level of the first, second frames F1 and F2 among the consecutive first, second, third and fourth frames F1, F2, F3 and F4 is 40th level. Assume that APL40 is the average power level of the third and fourth frames F3 and F4 is the 987th level APL987.

Here, the emitter signal ESc corresponding to the third frame F3 having the higher average power level is T3 time than the emitter signal ESa corresponding to the first frame F1 which is the frame before the average power level increases. As long as the application time can be advanced.

In addition, the time difference D20 between the emitter signal ESa corresponding to the first frame F1 and the start time of the first frame F1 may be different from the emitter signal ESc corresponding to the third frame F3. It may be smaller than the time difference D22 of the start time of the third frame F3.

In addition, the time difference D21 between the emitter signal ESa corresponding to the second frame F2 and the end point of the first frame F1 is different from the emitter signal ESd corresponding to the fourth frame F4. It is possible to be different from the time difference D22 at the end of the third frame F3.

In this case, the application point of the emitter signal ES is not set corresponding to the start and end points of the frame, but is set when the emitter signal ES is applied corresponding to the center of each frame. can do. In other words, it is possible to apply the emitter signal ES by matching the centers of the first frame F1 and the third frame F3 having different average power levels.

Referring to FIG. 25, the start point of the first frame F1 is ahead of the start point of the third frame F3 by S1, and the end point of the first frame F1 is later than the end point of the third frame F3. As late as you can see.

In this case, the optical center of the first frame F1 and the optical center of the third frame F3 may be similar.

On the other hand, the time difference D21 between the emitter signal ESa corresponding to the second frame F2 and the end point of the first frame F1 is different from the emitter signal ESd corresponding to the fourth frame F4. It may be smaller than the time difference D22 at the end of the third frame F3. The reason for this setting is that the length of the period during which the left eye lens and the right eye lens of the 3D glasses is turned off is different from the length of the period when the eye is turned on. Looking at this in more detail as follows.

As described above, the left eye lens and the right eye lens of the 3D glasses may include a liquid crystal layer whose molecular arrangement is changed according to an applied voltage. Accordingly, the length of the turn-on period and the turn-off period of the left eye lens and the right eye lens may be different.

For example, as in the case of FIG. 26, when the emitter signal ES is applied to the 3D glasses, the left eye lens 301 or the right eye lens 302 is turned on or off, where the emitter signal is The time required for the left eye lens 301 and / or the right eye lens 302 to turn on until fully turned on, that is, the length of the turn-on period ONP, is applied to the emitter signal. The left eye lens 301 and / or the right eye lens 302 may be longer than the time from starting to turn off to the time of complete turn off, that is, the length of the turn-off period OFFP.

That is, the left eye lens 301 and / or the right eye lens 302 of the 3D glasses require a relatively long time in the opening process, whereas a relatively short time is required in the closing process.

As described above, since the time required for the process of opening the left eye lens 301 and / or the right eye lens 302 of the 3D glasses is longer than the time required for the closing process, in FIG. 25, it corresponds to the second frame F2. The time difference D21 between the end point of the emitter signal ESa and the first frame F1 is the time of the end point of the emitter signal ESd and the third frame F3 corresponding to the fourth frame F4. It may be desirable to be smaller than the difference D22.

Meanwhile, in any one of two frames having different average power levels, the start point of the frame may be later than the time of application of the emitter signal ES, and in the other one, the start point of the frame is the emitter signal ES. May be preceded by

For example, as in the case of FIG. 27, application of the emitter signal ES corresponding to the first frame F1 and the second frame F2 among four consecutive frames F1, F2, F3, and F4. The emitter is later than L100 when the reset signal RS is supplied to the scan electrode in the reset period of the first subfield of each frame, and is emitter corresponding to the third frame F3 and the fourth frame F4. The application point of the signal ES may be preceded by L110 by the supply point of the reset signal RS supplied to the scan electrode in the reset period of the first subfield of each frame.

In this case, the application point of the emitter signal ES corresponding to the first and second frames F1 and F2 is T4 than the application point of the emitter signal ES corresponding to the third and fourth frames F3 and F4. As late as it can be seen.

If this is explained from another viewpoint, it is as follows.

Referring to FIG. 28, as shown in (b), the reset signal supplied to the scan electrode in the reset period RP of the first subfield SF1 of the left eye frame of the second frame having the average power level of the second level (for example, APL987). The application time of the RS is a predetermined time B20 later than the application time of the emitter signal ES, and as shown in (a), the first frame having an average power level lower than the second level (for example, APL40) In the reset period RP of the first subfield SF1 of the left eye frame of F1, the application time of the reset signal RS supplied to the scan electrode is earlier than the application time of the emitter signal ES. It is possible.

In this case, the period ONP in which the left eye lens 301 is turned on overlaps or resets the reset period RP of the first subfield SF1 of the first frame F1. And the address period AP can be overlapped. In this case, the 3D implemented by preventing the light generated in the sustain period from being blocked by the left eye lens 301 by substantially turning on the left eye lens 301 in the sustain period in the first frame F1. It is possible to prevent the luminance of the image from being excessively reduced.

In addition, in the first frame F1, the application time of the reset signal RS is earlier than the application time of the emitter signal ES, thereby increasing the total number of sustain signals allocated to the first frame F1. In this case, it is possible to further suppress the decrease in the luminance of the 3D image.

29 to 34 are views for explaining another driving method of the stereoscopic plasma display device according to the present invention in more detail. Hereinafter, the description of the parts described in detail above will be omitted.

Referring to FIG. 29, the timing controller 400 of the 3D plasma display device according to the present invention includes an emitter generated by the emitter signal generator (ESG) 406 and the emitter signal generator 406 for generating an emitter signal. The first, second, third, and fourth delay units 401 to 404, A to D, and the selector 405 may be included to delay the signal.

The emitter signal generator 406 may generate an emitter signal to be transmitted to the 3D glasses. For example, the emitter signal generator 406 may generate an emitter signal based on a frame synchronization signal, that is, a vertical synchronization signal Vsync. That is, the emitter signal generator 406 can generate the emitter signal in response to the vertical synchronization signal of the video frame.

The first, second, third, and fourth delay units 401 to 404 may delay the input emitter signal by a predetermined time. For example, the first, second, third, and fourth delay units 401 to 404 can delay the emitter signal by 0.2 ms.

Accordingly, the emitter signal output from the first delay unit 401 is an emitter signal delayed by 0.2 ms.

In addition, since the output signal of the first delay unit 401 is input to the second delay unit 402, the emitter signal output by the second delay unit 402 may be an emitter signal delayed by 0.4 ms.

In this manner, the emitter signal output by the third delay unit 403 may be an emitter signal delayed by 0.6 ms, and the emitter signal output by the fourth delay unit 404 may be an emitter signal delayed by 0.8 ms.

The selector 405 may select and output one of a plurality of input signals. For example, when the selector 405 selects the emitter signal directly input from the emitter signal generator 406, the non-delayed emitter signal may be selected and output by the selector 405. . In addition, when the selector 405 selects the emitter signal output from the second delay unit 402, the emitter signal delayed in total 0.4 ms may be selected and output by the selector 405.

The emitter signal selected and output by the selector 405 may be an emitter signal output by the timing controller 400.

In addition, the selector 405 may select an emitter signal to be output according to the average power level of the image data.

For example, as in the case of FIG. 30, when the average power level of the input image data is included in the G1 section, the selector 405 selects the emitter signal directly input from the emitter signal generator 406. It is possible to do That is, it is possible not to delay the emitter signal when the average power level of the input video data is high.

In addition, when the average power level of the input image data is included in G2 lower than the G1 section, the selector 405 may select and output the 0.2 ms delayed emitter signal output from the first delay unit 401. .

As such, it is possible to vary the delay value of the emitter signal according to the average power level of the input image data.

For example, as in the case of FIG. 31, the average power level of the first, second frames F1 and F2 among the consecutive first, second, third, and fourth frames F1, F2, F3, and F4 is 40th level. Assume that APL40 is the average power level of the third and fourth frames F3 and F4 is the 987th level APL987.

Here, the emitter signal ESa corresponding to the first frame F1 having a low average power level and the emitter signal ESb corresponding to the second frame F2 are delayed by T10, and the average power level is first. The emitter signal ESc corresponding to the third frame F3 higher than the two frames F1 and F2 and the emitter signal ESd corresponding to the fourth frame F4 are delayed by T11 smaller than T10. It is possible.

Accordingly, the application point of the emitter signal ESa corresponding to the first frame F1 (or the second frame F2) is the emitter signal corresponding to the third frame F3 (or the fourth frame F4). It may be delayed by ΔT10 later than the application of (ESc).

In this case, even if the number of the sustain signals allocated to the first frame F1 is relatively large, after the image of the first frame F1 is sufficiently terminated, the left eye lens or the image corresponding to the image of the second frame F2 may be used. The right eye lens may be turned on. As a result, the crosstalk phenomenon can be reduced.

The number of sustain signals allocated to the third and fourth frames F3 and F4 having a higher average power level compared to the first and second frames F1 and F2 is the sustain signals allocated to the first and second frames F1 and F2. It may be less than the number of. Accordingly, the left eye lens corresponds to the image of the fourth frame F4 even if the delay value of the application time of the emitter signal corresponding to the fourth frame F4 is relatively small or the application time of the emitter signal is not delayed. Alternatively, the image of the third frame F3 may be sufficiently terminated before the right eye lens is turned on.

Even in this case, the spacing (or time difference) between two consecutive emitter signals may also vary.

For example, as in the case of FIG. 32, the average power level of the first frame F1 is the 987th level APL987, and the average power level of the second frame F2 continuous to the first frame F1 is When it decreases to 40th level APL40, since the application time of the emitter signal ESb corresponding to the 2nd frame F2 is delayed, the emitter signal ESa corresponding to the 1st frame F1 is delayed. And the time difference W1 between the emitter signal ESb corresponding to the second frame F2 is the emitter signal ESb corresponding to the second frame F2 and the emitter corresponding to the third frame F3. It may be larger than the time difference W2 between the signals ESc.

In addition, when the average power level of the third frame F3 and the fourth frame F4 after the second frame F2 is substantially the same as the average power level of the second frame F2, the second frame F2 The time difference W2 between the emitter signal ESb corresponding to the emitter signal ESc corresponding to the third frame F3 is the emitter signal ESc corresponding to the third frame F3 and the third It is possible to be substantially equal to the time difference W4 of the emitter signal ESd corresponding to the fourth frame F4 after the frame F3.

Alternatively, as in the case of FIG. 33, when the average power level of the third frame F3 is higher than the average power level of the second frame F2, the emitter signal ESb corresponding to the second frame F2. While the delay is delayed, the emitter signal ESc corresponding to the third frame F3 is not delayed or the delay value may be relatively small. The time difference W11 of the emitter signal ESc corresponding to the three frames F3 is the emitter signal ESc corresponding to the third frame F3 and the fourth frame F4 after the third frame F3. ) May be smaller than the time difference W12 of the emitter signal ESd.

Even in this case, in any one of two frames having different average power levels, the start point of the frame may be later than the time of application of the emitter signal ES, and in the other one, the start point of the frame is the emitter signal ( It may be earlier than the time of application of ES). Since this has been described in detail with reference to FIG. 28, redundant description thereof will be omitted.

Meanwhile, the time difference between the emitter signal and the start time of the frame may be different in any two frames having different average power levels.

For example, as in the case of (a) of FIG. 34, the supply time of the reset signal RS supplied to the scan electrode of the plasma display panel in the reset period of the first subfield SF1 of the first frame F1 is It may be advanced by ΔW3 before the point of application of the emitter signal ESa.

In addition, as in the case of FIG. 34B, the first power is supplied to the scan electrode of the plasma display panel in the reset period of the first subfield SF1 of the second frame F2 having a lower average power level than the first frame F1. The supply time of the reset signal RS may be advanced by ΔW4 which is greater than ΔW3 than when the emitter signal ESb is applied.

In other words, when the start time of the frame is regarded as the supply time of the reset signal RS, the time difference between the start time of the first frame F1 and the emitter signal ESa corresponding to the first frame F1. DELTA W3 is different from the time difference DELTA W4 between the emitter signal ESb corresponding to the second frame F2 and the start time of the second frame F2, and is preferably smaller.

In addition, the application time of the emitter signal ESa corresponding to the first frame F1 is later than the start time of the first frame F1, and the application of the emitter signal ESb corresponding to the second frame F2 is applied. The view point may be regarded as being later than the start point point of the second frame F2.

This case may correspond to a case where the emitter signals ESa and ESb are delayed in the first and second frames F1 and F2, respectively.

As such, the application point of the emitter signal ESb corresponding to the second frame F2 having a lower average power level than the first frame F1 corresponds to the emitter signal ESa corresponding to the first frame F1. Since it is delayed more than, the emitter signal ESa corresponding to the first frame F1 is the scan electrode of the plasma display panel in the reset period RP of the first subfield SF1 of the first frame F1. The emitter signal ESb overlapping with the reset signal RS supplied to the second signal F2 and corresponding to the second frame F2 is reset period RP of the first subfield SF1 of the second frame F2. It may be possible to overlap with the scan signal Sc supplied to the scan electrode of the plasma display panel in the address period AP after the.

That is, the emitter signal ESa corresponding to the first frame F1 is delayed until the reset period RP of the first subfield SF1 of the first frame F1 and corresponds to the second frame F2. The emitter signal ESb may be delayed until the address period AP of the first subfield SF1 of the second frame F2.

On the other hand, it may be possible to change the application time of the emitter signal (ES) on the basis of the frame synchronization signal for separating each frame, that is, the vertical synchronization signal (Vsync). Since the period of the vertical synchronization signal Vsync can be kept substantially constant, the vertical synchronization signal Vsync can be used as a reference for changing the application point of the emitter signal ES.

For example, the time difference ΔW1 between the emitter signal ESa corresponding to the first frame F1 and the synchronization signal Vsync corresponding to the first frame F1 is determined by the second frame F2. It is possible to be smaller than the time difference DELTA W2 between the corresponding emitter signal ESb and the synchronization signal Vsync corresponding to the second frame.

In addition, an application point of the emitter signal ESa corresponding to the first frame F1 is later than an application point of the synchronization signal Vsync corresponding to the first frame F1, and corresponds to the second frame F2. The application point of the emitter signal ESb may be later than the application point of the synchronization signal Vsync corresponding to the second frame F2.

35 to 41 are views for explaining a driving method when the supply of the emitter signal is cut off. In the following, description of the parts described above will be omitted.

Referring to FIG. 35, the 3D glasses 300 may further include an auxiliary emitter signal generator 3000 (AES). The auxiliary emitter signal generator 3000 is a frame immediately before the transmission of the emitter signal when the emitter signal is not transmitted from the signal transmitter 410, that is, when the emitter signal is blocked. An emitter signal corresponding to the average power level may be generated.

To this end, the signal transmitter 410 may preferably transmit not only the emitter signal but also the average power level information of the input image frame to the 3D glasses 300.

For example, as shown in FIG. 36, while the user A watches 3D images while wearing the 3D glasses 300, the user B and the signal transmission unit 410 are displayed by the user B between the P1 and P2 views. In the case of intercepting, the 3D glasses 300 worn by the user A during the period P1 to P2 may no longer receive the emitter signal from the signal transmitter 410.

In this case, the auxiliary emitter signal generator 3000 generates an auxiliary emitter signal for turning on / off the left eye lens 301 and the right eye lens 302 during the period P1 to P2.

In addition, in the present invention, as described above, since the application time of the emitter signal is changed according to the average power level of the input image frame, the auxiliary emitter signal generator 3000 is blocked from transmitting the emitter signal. It may be desirable to generate an auxiliary emitter signal based on the average power level of the immediately preceding frame.

For example, as shown in FIG. 37, when transmission of the emitter signal ES is interrupted from the time point P1 to the time point P2, and the average power level of the frame decreases from the level 987 to the forty level before the time P1, That is, when the average power level of the frame at the point P1 is the 40th level APL40, the auxiliary emitter signal generator 3000 generates the auxiliary emitter signal corresponding to the 40th level APL40 from the point P1 to the point P2. You can.

For example, as in the case of the first and second frames F1 and F2 of FIG. 31, the auxiliary emitter signal generator 3000 generates an emitter signal delayed by T10 from the time point P1 to the time point P2. You can do it. The generated emitter signal may be used to turn on / off the left eye lens 301 and / or the right eye lens 302.

Alternatively, as shown in FIG. 38, transmission of the emitter signal ES is blocked from the time point P1 to the time point P2, and the average power level of the frame is changed from the 40th level APL40 to the 987th level APL987 before the time P1. When the average power level of the frame is increased to the 987th level APL40 at the time P1, the auxiliary emitter signal generator 3000 corresponds to the auxiliary emi corresponding to the 987th level APL987 from the P1 time point to the P2 time point. Signal can be generated.

For example, as in the case of the third and fourth frames F3 and F4 of FIG. 21, the auxiliary emitter signal generator 3000 generates an emitter signal delayed by T2 from the time point P1 to the time point P2. You can do it.

Alternatively, when the transmission of the emitter signal from the signal transmitter 410 to the 3D glasses 300 is blocked, the auxiliary emitter signal generator 3000 may generate the auxiliary emitter signal according to a preset reference value. Do.

Here, the reference value may be an average power level value or range to be applied when the emitter signal is cut off.

For example, as in the case of FIG. 39, it may be determined whether the emitter signal ES is blocked (3300), and it may be determined (3310) whether a reference value exists when the emitter signal ES is blocked.

As a result of the determination, when there is no reference value, the auxiliary emitter signal AES may be generated by applying the average power level value of the frame immediately before the emitter signal ES is blocked (3340). On the contrary, when the reference value exists, the auxiliary emitter signal AES may be generated by applying the reference value 3320.

For example, assuming that the reference value is set to the 100th level APL100, when the transmission of the emitter signal ES is cut off, the average power level of the current frame is assumed to be the 100th level APL100. It is possible to generate an emitter signal corresponding to the assumed average power level.

In addition, the generated auxiliary emitter signal AES may be output 3330.

The structure of the auxiliary emitter signal AES and the emitter signal ES may be substantially the same. However, the emitter signal ES may be generated by the timing controller 400, and the auxiliary emitter signal AES may be generated by the 3D glasses 300.

On the other hand, it may be possible for the user to directly change the time of application of the emitter signal. In this case, as in the case of FIG. 40, the 3D glasses 300 may further include a command input unit 3400.

The command input unit 3400 may be used by the user to adjust an application point of the emitter signal ES according to a selection. The command input unit 3400 may have various forms such as a keypad and a remote controller.

In this case, the user can watch the stereoscopic image while wearing the 3D glasses 300 and change the point of application of the emitter signal ES while setting the generation degree of the crosstalk, the luminance of the stereoscopic image, and the like. Do.

For example, as in the case of (a) of FIG. 41, the user can directly set the range of the average power level for use in generating the emitter signal ES. That is, the user can select a range of average power levels to be applied by selecting any one of ① to ⓝ.

If the user selects ① corresponding to APL1 to APL100, the emitter signal ES corresponding to the time difference between the start point and the end point of the frame of the APL1 to APL100 may be generated.

Alternatively, as shown in (b) of FIG. 41, it is possible for the user to directly set the change time at the time of applying the emitter signal ES.

For example, the user can directly set the delay time of the emitter signal ES. As in the case of Fig. 41 (b), it is possible to set the stereoscopic image to suit the user's taste by freely selecting the delay time of the signal of the emitter signal ES.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the foregoing detailed description, and the meaning and scope of the claims are as follows. And all changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

Claims (31)

A plasma display panel;
A driver configured to implement an image on a screen of the plasma display panel in a frame including a plurality of sub-fields, and to transmit an emitter signal to 3D glasses;
Including,
And an application point of the emitter signal is changed according to an average power level (APL) of an input image frame. The method of claim 1,
And the emitter signal is a signal for turning on or turning off the left or right eye lens of the 3D glasses. The method of claim 1,
The frame includes a left eye frame including at least one subfield and a right frame including at least one subfield. The method of claim 3, wherein
And the emitter signal is positioned between two consecutive frames and is located between the left eye frame and the right eye frame. The method of claim 1,
And the emitter signal is positioned between two consecutive frames. The method of claim 1,
And the application point of the emitter signal is changed when the average power level is changed. The method of claim 1,
And the application point of the emitter signal is pulled when the average power level is increased. The method of claim 1,
And the application point of the emitter is delayed when the average power level is increased. The method of claim 1,
And the application point of the emitter signal is delayed when the average power level decreases. The method of claim 1,
And when the average power level is maintained, the time difference between two consecutive emitter signals is substantially the same regardless of the value of the average power level. A plasma display panel;
A driver configured to implement an image on a screen of the plasma display panel in a frame including a plurality of sub-fields, and to transmit an emitter signal to 3D glasses;
Including,
The frame includes contiguous first, second, and third frames,
When the average power level (APL) of the first frame is a first level APL1 and the average power level of the second frame is a second level higher than the first level,
The time difference between the emitter signal corresponding to the first frame and the emitter signal corresponding to the second frame is the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame. 3D plasma display device larger than the time difference. The method of claim 11,
If the average power level of the third frame is lower than or equal to the second level,
The time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame corresponds to the emitter signal corresponding to the third frame and a fourth frame after the third frame. 3D plasma display device less than or equal to the time difference of the emitter signal. The method of claim 12,
If the average power level of the third frame is lower than the second level,
The time difference between the emitter signal corresponding to the third frame and the emitter signal corresponding to the fourth frame is the emitter signal corresponding to the first frame and the emitter signal corresponding to the second frame. 3D plasma display device larger than the time difference. The method of claim 11,
The time difference between the emitter signal corresponding to the first frame and the start time of the first frame is different from the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. Device. The method of claim 11,
The time difference between the emitter signal corresponding to the first frame and the start time of the first frame is substantially equal to the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. Same stereoscopic plasma display device. The method of claim 11,
The time difference between the emitter signal corresponding to the second frame and the end point of the first frame is different from the time difference between the emitter signal corresponding to the third frame and the end point of the second frame. Device. The method of claim 11,
The time difference between the emitter signal corresponding to the second frame and the end point of the first frame is substantially equal to the time difference between the emitter signal corresponding to the third frame and the end point of the second frame. Same stereoscopic plasma display device. The method of claim 11,
And a start point of the frame is a point of time of applying a reset signal supplied to a scan electrode of the plasma display panel in a reset period of the first subfield among a plurality of subfields of the frame. The method of claim 11,
The end point of the frame is a stereoscopic plasma display which is the end point of the last sustain signal of the sustain signal supplied to any one of the scan electrode and the sustain electrode of the plasma display panel in the reset period of the last subfield of the plurality of subfields of the frame. Device. The method of claim 11,
The application time of the emitter signal corresponding to the second frame is later than the supply time of the reset signal supplied to the scan electrode in the reset period of the first subfield of the second frame,
And an application point of the emitter signal corresponding to the third frame is earlier than a supply point of a reset signal supplied to the scan electrode in the reset period of the first subfield of the third frame. A plasma display panel;
A driver configured to implement an image on a screen of the plasma display panel in a frame including a plurality of sub-fields, and to transmit an emitter signal to 3D glasses;
Including,
The frame includes contiguous first, second, and third frames,
When the average power level (APL) of the first frame is a first level APL1 and the average power level of the second frame is a second level lower than the first level,
The time difference between the emitter signal corresponding to the first frame and the emitter signal corresponding to the second frame is the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame. 3D plasma display device larger than the time difference. The method of claim 21,
When the average power level of the third frame is higher than the second level,
The time difference between the emitter signal corresponding to the second frame and the emitter signal corresponding to the third frame corresponds to the emitter signal corresponding to the third frame and a fourth frame after the third frame. 3D plasma display device smaller than the time difference of the emitter signal. The method of claim 21,
The emitter signal corresponding to the first frame overlaps with the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the first frame.
The emitter signal corresponding to the second frame overlaps with the scan signal supplied to the scan electrode of the plasma display panel in an address period after the reset period of the first subfield of the second frame. Plasma display device. The method of claim 21,
The time difference between the emitter signal corresponding to the first frame and the synchronization signal Vsync corresponding to the first frame is a synchronization signal corresponding to the emitter signal corresponding to the second frame and the second frame. 3D plasma display device smaller than the time difference between (Vsync). The method of claim 24,
The application time of the emitter signal corresponding to the first frame is later than the application time of the synchronization signal Vsync corresponding to the first frame, and the application time of the emitter signal corresponding to the second frame is 3D plasma display device, which is later than the time of applying the sync signal Vsync corresponding to two frames. The method of claim 21,
The time difference between the emitter signal corresponding to the first frame and the start time of the first frame is different from the time difference between the emitter signal corresponding to the second frame and the start time of the second frame. Device. The method of claim 26,
The time difference between the emitter signal corresponding to the first frame and the start time of the first frame is smaller than the time difference between the emitter signal corresponding to the second frame and the start time of the second frame Device. The method of claim 27,
The application point of the emitter signal corresponding to the first frame is later than the start point of the first frame, and the application point of the emitter signal corresponding to the second frame is later than the start point of the second frame. Plasma display device. The method of claim 26,
The application point of the emitter signal corresponding to the first frame is earlier than the application point of the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the first frame.
And an application point of the emitter signal corresponding to the second frame is later than a supply point of the reset signal supplied to the scan electrode of the plasma display panel in the reset period of the first subfield of the second frame. A plasma display panel including side-by-side scan electrodes and sustain electrodes;
3D glasses including a left eye lens, a right eye lens, and an auxiliary emitter signal generator; And
A driver configured to implement an image on a screen of the plasma display panel in a frame including a plurality of sub-fields and to transmit an emitter signal to the 3D glasses;
Including,
The application point of the emitter signal is changed according to the average power level (APL) of the input image frame,
And the auxiliary emitter signal generator of the 3D glasses generates the emitter signal corresponding to the average power level of the immediately preceding frame when transmission of the emitter signal from the driver is blocked. 31. The method of claim 30,
And the driving unit transmits average power level information of an image frame input to the 3D glasses.

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