WO2011111389A1 - プラズマディスプレイ装置、プラズマディスプレイシステム、およびプラズマディスプレイ装置用シャッタ眼鏡の制御方法 - Google Patents
プラズマディスプレイ装置、プラズマディスプレイシステム、およびプラズマディスプレイ装置用シャッタ眼鏡の制御方法 Download PDFInfo
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- WO2011111389A1 WO2011111389A1 PCT/JP2011/001396 JP2011001396W WO2011111389A1 WO 2011111389 A1 WO2011111389 A1 WO 2011111389A1 JP 2011001396 W JP2011001396 W JP 2011001396W WO 2011111389 A1 WO2011111389 A1 WO 2011111389A1
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- eye
- subfield
- field
- sustain
- shutter
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
Definitions
- the present invention relates to a plasma display device, a plasma display system, and a plasma display device capable of stereoscopically viewing a stereoscopic image composed of right-eye images and left-eye images displayed alternately on a plasma display panel using shutter glasses.
- the present invention relates to a method for controlling shutter glasses.
- a typical AC surface discharge type panel as a plasma display panel (hereinafter abbreviated as “panel”) has a large number of discharge cells formed between a front substrate and a rear substrate that are arranged to face each other.
- a plurality of pairs of display electrodes composed of a pair of scan electrodes and sustain electrodes are formed on the front glass substrate in parallel with each other.
- a dielectric layer and a protective layer are formed so as to cover the display electrode pairs.
- the back substrate has a plurality of parallel data electrodes formed on the glass substrate on the back side, a dielectric layer is formed so as to cover the data electrodes, and a plurality of barrier ribs are formed thereon in parallel with the data electrodes. ing. And the fluorescent substance layer is formed in the surface of a dielectric material layer, and the side surface of a partition.
- the front substrate and the rear substrate are arranged opposite to each other and sealed so that the display electrode pair and the data electrode are three-dimensionally crossed.
- a discharge gas containing xenon at a partial pressure ratio of 5% is sealed, and a discharge cell is formed in a portion where the display electrode pair and the data electrode face each other.
- ultraviolet rays are generated by gas discharge in each discharge cell, and the phosphors of each color of red (R), green (G) and blue (B) are excited and emitted by the ultraviolet rays. Display an image.
- the subfield method is generally used as a method for driving the panel.
- one field is divided into a plurality of subfields, and gradation display is performed by causing each discharge cell to emit light or not emit light in each subfield.
- Each subfield has an initialization period, an address period, and a sustain period.
- an initialization waveform is applied to each scan electrode, and an initialization operation is performed to generate an initialization discharge in each discharge cell.
- wall charges necessary for the subsequent address operation are formed, and priming particles (excited particles for generating the discharge) for generating the address discharge stably are generated.
- the scan pulse is sequentially applied to the scan electrodes, and the address pulse is selectively applied to the data electrodes based on the image signal to be displayed.
- an address discharge is generated between the scan electrode and the data electrode of the discharge cell to emit light, and a wall charge is formed in the discharge cell (hereinafter, these operations are also collectively referred to as “address”). ).
- the number of sustain pulses based on the luminance weight determined for each subfield is alternately applied to the display electrode pairs composed of the scan electrodes and the sustain electrodes.
- a sustain discharge is generated in the discharge cell that has generated the address discharge, and the phosphor layer of the discharge cell emits light (hereinafter referred to as “lighting” that the discharge cell emits light by the sustain discharge, and “non-emitting”. Also written as “lit”.)
- each discharge cell is made to emit light with the luminance according to the luminance weight.
- each discharge cell of the panel is caused to emit light with a luminance corresponding to the gradation value of the image signal, and an image is displayed in the image display area of the panel.
- One of the important factors in improving the image display quality on the panel is the improvement in contrast.
- a driving method is disclosed in which light emission not related to gradation display is reduced as much as possible to improve the contrast ratio.
- an initialization operation for generating an initializing discharge in all the discharge cells is performed in an initializing period of one subfield among a plurality of subfields constituting one field.
- an initializing operation for selectively generating initializing discharge is performed on the discharge cells that have generated sustain discharge in the sustaining period of the immediately preceding subfield.
- black luminance The luminance of the black display area where no sustain discharge occurs (hereinafter abbreviated as “black luminance”) varies depending on light emission not related to image display, for example, light emission caused by initialization discharge.
- light emission in the black display region is only weak light emission when the initialization operation is performed on all the discharge cells. Thereby, it is possible to reduce the black luminance and display an image with high contrast (see, for example, Patent Document 1).
- 3D image a three-dimensional (3 dimension: hereinafter referred to as “3D”) image (hereinafter referred to as “3D image”) capable of stereoscopic viewing is displayed on the panel, and it is considered to use a plasma display device as the 3D image display device.
- 3D image a three-dimensional (3 dimension: hereinafter referred to as “3D image”
- One 3D image is composed of one right-eye image and one left-eye image.
- this plasma display device when a 3D image is displayed on the panel, the right-eye image and the left-eye image are alternately displayed on the panel.
- shutter glasses in which the left and right shutters are alternately opened and closed in synchronization with the field for displaying the image for the right eye and the field for displaying the image for the left eye. Appreciate the 3D images that are displayed.
- the shutter glasses include a right-eye shutter and a left-eye shutter, and the right-eye shutter is opened (a state in which visible light is transmitted) during a period in which the right-eye image is displayed on the panel, and the left-eye shutter. Is closed (a state in which visible light is blocked), and while the left-eye image is displayed, the left-eye shutter is opened and the right-eye shutter is closed. Accordingly, the user can observe the right-eye image only with the right eye, can observe the left-eye image with only the left eye, and can stereoscopically view the 3D image displayed on the panel.
- One 3D image is composed of one right-eye image and one left-eye image. Therefore, when displaying a 3D image, half of the image displayed on the panel per unit time (for example, 1 second) is the right-eye image, and the remaining half is the left-eye image. Therefore, the number of 3D images displayed on the panel per second is half of the field frequency (the number of fields displayed per second). When the number of images displayed on the panel per unit time is reduced, it is easy to see the flickering of the image called flicker.
- the field frequency of the 3D image is doubled (for example, 120 Hz) of the 2D image.
- a plurality of subfields are divided into a subfield group displaying a right eye image and a subfield group displaying a left eye image
- a method of opening and closing the shutter of the shutter glasses in synchronism with the start of the writing period of the first subfield of this subfield group is disclosed (for example, see Patent Document 2).
- the present invention constitutes one field using a panel having a plurality of discharge cells each having a display electrode pair composed of a scan electrode and a sustain electrode, and a plurality of subfields having an initialization period, an address period, and a sustain period, An up ramp waveform voltage is applied to the scan electrode in the initialization period, and a subfield for generating a sustain discharge in all discharge cells in the sustain period is set as the first subfield of one field, and the right-eye image signal and the left-eye image signal are provided.
- a control signal generating circuit that generates a shutter opening / closing timing signal including a left eye timing signal that is turned on when displaying a window and turned off when displaying a right eye field, The control signal generation circuit generates a shutter opening / closing timing signal in which both the right-eye timing signal and the left-eye timing signal are turned off during the first subfield.
- the plasma display device that can be used as a 3D image display device
- the writing operation is stabilized and crosstalk is given to the user who views the display image through the shutter glasses. While reducing, it is possible to realize a 3D image with good contrast.
- the driving circuit in the plasma display device of the present invention generates the number of sustain pulses by multiplying the luminance weight by the luminance magnification in the sustain period of the subfield excluding the head subfield, and the brightness in the sustain period of the head subfield. It may be configured to generate a certain number of sustain pulses regardless of the magnification.
- the drive circuit in the plasma display device of the present invention may be configured not to perform an address operation in the address period of the first subfield. Thereby, it is possible to reduce the time required for the top subfield during 3D driving.
- the present invention also constitutes one field using a panel having a plurality of discharge cells each having a display electrode pair composed of a scan electrode and a sustain electrode, and a plurality of subfields having an initialization period, an address period, and a sustain period Then, an up-gradient waveform voltage is applied to the scan electrode in the initialization period, and a subfield that generates a sustain discharge in all the discharge cells in the sustain period is set as the first subfield of one field, and the right-eye image signal and the left-eye image signal
- Right eye timing signal that is on and off when displaying the left eye field and the left eye
- a plasma display device having a control signal generation circuit that generates a shutter opening / closing timing signal including a left-eye timing signal
- a plasma display system having a shutter for right eye and a shutter for left eye capable of opening and closing the shutter, and shutter glasses whose opening and closing is controlled by a shutter opening and closing timing signal generated by a control signal generation circuit,
- the shutter glasses are characterized in that both the right-eye shutter and the left-eye shutter are closed during the first subfield.
- a plasma display system including a plasma display device that can be used as a 3D image display device
- the user when displaying a 3D image on a panel, the user can stabilize the writing operation and view the display image through the shutter glasses.
- the present invention also constitutes one field using a panel having a plurality of discharge cells each having a display electrode pair composed of a scan electrode and a sustain electrode, and a plurality of subfields having an initialization period, an address period, and a sustain period.
- an up-gradient waveform voltage is applied to the scan electrode in the initialization period, and a subfield that generates a sustain discharge in all the discharge cells in the sustain period is set as the first subfield of one field, and the right-eye image signal and the left-eye image signal
- Right eye timing signal that is on and off when displaying the left eye field and the left eye
- a control signal generating circuit that generates a shutter opening / closing timing signal including a left-eye timing signal that is turned on when displaying a field and turned off when displaying a right-eye field. Control method for shutter glasses having a right-eye shutter and a left-eye shutter that can be opened and closed independently, and the right-eye shutter and the left-eye shutter are both in the first subfield period.
- a plasma display device that can be used as a 3D image display device and can stabilize the writing operation when displaying a 3D image on the panel is viewed using the shutter glasses controlled by this control method.
- the 3D image displayed on the panel can be viewed as an image with high image display quality in which the black luminance is reduced and the contrast is increased while reducing crosstalk.
- FIG. 1 is an exploded perspective view showing a structure of a panel used in a plasma display device according to an embodiment of the present invention.
- FIG. 2 is an electrode array diagram of a panel used in the plasma display device according to one embodiment of the present invention.
- FIG. 3 is a diagram schematically showing an outline of a circuit block of a plasma display device and a plasma display system in an embodiment of the present invention.
- FIG. 4 is a diagram schematically showing drive voltage waveforms applied to the respective electrodes of the panel used in the plasma display device according to one embodiment of the present invention.
- FIG. 5 is a waveform diagram schematically showing drive voltage waveforms applied to the respective electrodes of the panel used in the plasma display device according to one embodiment of the present invention and the opening / closing operation of the shutter glasses.
- FIG. 6 is a diagram schematically showing a subfield configuration and a right-eye shutter and a left-eye shutter open / close state when a 3D image is displayed on the plasma display device according to the embodiment of the present invention.
- FIG. 1 is an exploded perspective view showing the structure of panel 10 used in the plasma display device according to one embodiment of the present invention.
- a plurality of display electrode pairs 24 each including a scanning electrode 22 and a sustaining electrode 23 are formed on a glass front substrate 21.
- a dielectric layer 25 is formed so as to cover the scan electrode 22 and the sustain electrode 23, and a protective layer 26 is formed on the dielectric layer 25.
- This protective layer 26 has been used as a panel material in order to lower the discharge starting voltage in the discharge cell.
- the secondary layer 26 has a large secondary electron emission coefficient and is durable. It is made of a material mainly composed of magnesium oxide (MgO).
- a plurality of data electrodes 32 are formed on the rear substrate 31, a dielectric layer 33 is formed so as to cover the data electrodes 32, and a grid-like partition wall 34 is formed thereon.
- a phosphor layer 35 that emits light of each color of red (R), green (G), and blue (B) is provided on the side surface of the partition wall 34 and on the dielectric layer 33.
- the phosphor forming the phosphor layer 35 is not limited to the above-described phosphor.
- the time constant representing the decay time of afterglow of the phosphor varies depending on the phosphor material, but the blue phosphor is 1 msec or less, the green phosphor is about 2 msec to 5 msec, and the red phosphor is about 3 msec to 4 msec. .
- the time constant of the blue phosphor used in the present embodiment is about 0.1 msec, and the time constant of the green phosphor and the red phosphor is about 3 msec.
- This time constant is the time required for the afterglow to decay to about 10% of the emission luminance (peak luminance) at the time of occurrence of discharge after the end of discharge.
- the front substrate 21 and the rear substrate 31 are arranged to face each other so that the display electrode pair 24 and the data electrode 32 intersect with each other with a minute discharge space interposed therebetween. And the outer peripheral part is sealed with sealing materials, such as glass frit. Then, for example, a mixed gas of neon and xenon is sealed in the discharge space inside as a discharge gas.
- the discharge space is partitioned into a plurality of sections by partition walls 34, and discharge cells are formed at the intersections between the display electrode pairs 24 and the data electrodes 32.
- discharge is generated in these discharge cells, and the phosphor layer 35 of the discharge cells emits light (lights the discharge cells), thereby displaying a color image on the panel 10.
- One pixel is composed of three discharge cells that emit blue (B) light.
- the structure of the panel 10 is not limited to the above-described structure, and may be, for example, provided with a stripe-shaped partition wall.
- FIG. 2 is an electrode array diagram of panel 10 used in the plasma display device according to one embodiment of the present invention.
- the panel 10 includes n scan electrodes SC1 to SCn (scan electrode 22 in FIG. 1) extended in the horizontal direction (row direction) and n sustain electrodes SU1 to SUn (sustain electrodes in FIG. 1). 23) are arranged, and m data electrodes D1 to Dm (data electrodes 32 in FIG. 1) extending in the vertical direction (column direction) are arranged.
- FIG. 3 is a diagram schematically showing an outline of a circuit block and a plasma display system of the plasma display device 40 in one embodiment of the present invention.
- the plasma display system shown in the present embodiment includes a plasma display device 40 and shutter glasses 50 as components.
- the plasma display device 40 includes a panel 10 in which a plurality of discharge cells having scan electrodes 22, sustain electrodes 23, and data electrodes 32 are arranged, and a drive circuit that drives the panel 10.
- the drive circuit includes an image signal processing circuit 41, a data electrode drive circuit 42, a scan electrode drive circuit 43, a sustain electrode drive circuit 44, a control signal generation circuit 45, and a power supply circuit (not shown) that supplies power necessary for each circuit block. )).
- the driving circuit repeats the right-eye field and the left-eye field alternately based on the 3D image signal to display a 3D image on the panel 10, and the panel 10 based on the 2D image signal that does not distinguish between the right-eye and left-eye.
- the panel 10 is driven by any of 2D driving for displaying a 2D image.
- the plasma display device 40 includes a timing signal output unit 46 that outputs a shutter opening / closing timing signal for controlling the opening / closing of the shutter of the shutter glasses 50 used by the user to the shutter glasses 50.
- the shutter glasses 50 are used by the user when displaying the 3D image on the panel 10, and the user can view the 3D image stereoscopically by viewing the 3D image through the shutter glasses 50.
- the image signal processing circuit 41 receives a 2D image signal or a 3D image signal, and assigns a gradation value to each discharge cell based on the input image signal.
- the gradation value is converted into image data indicating light emission / non-light emission for each subfield (data corresponding to light emission / non-light emission corresponding to digital signals “1” and “0”). That is, the image signal processing circuit 41 converts the image signal for each field into image data indicating light emission / non-light emission for each subfield.
- each gradation value of R, G, and B is assigned to each discharge cell based on the R signal, the G signal, and the B signal.
- the input image signal includes a luminance signal (Y signal) and a saturation signal (C signal, RY signal and BY signal, or u signal and v signal, etc.)
- the luminance signal and saturation signal Based on the degree signal, R signal, G signal, and B signal are calculated, and thereafter, R, G, and B gradation values (gradation values expressed in one field) are assigned to each discharge cell. Then, the R, G, and B gradation values assigned to each discharge cell are converted into image data indicating light emission / non-light emission for each subfield.
- the input image signal is a stereoscopic 3D image signal having a right-eye image signal and a left-eye image signal.
- the right-eye image signal and The left-eye image signal is alternately input to the image signal processing circuit 41 for each field. Therefore, the image data conversion circuit 49 converts the right eye image signal into right eye image data, and converts the left eye image signal into left eye image data.
- the control signal generation circuit 45 determines which of the 2D image signal and the 3D image signal is input to the plasma display device 40 based on the input signal. Based on the determination result, a control signal for controlling each drive circuit is generated in order to display a 2D image or a 3D image on the panel 10.
- the control signal generation circuit 45 determines whether the input signal to the plasma display device 40 is a 3D image signal or a 2D image signal from the frequency of the horizontal synchronization signal and the vertical synchronization signal of the input signals. For example, if the horizontal synchronization signal is 33.75 kHz and the vertical synchronization signal is 60 Hz, the input signal is determined as a 2D image signal. If the horizontal synchronization signal is 67.5 kHz and the vertical synchronization signal is 120 Hz, the input signal is a 3D image signal. Judge. Various control signals for controlling the operation of each circuit block are generated based on the horizontal synchronization signal and the vertical synchronization signal. The generated control signal is supplied to each circuit block (data electrode drive circuit 42, scan electrode drive circuit 43, sustain electrode drive circuit 44, image signal processing circuit 41, etc.).
- the control signal generation circuit 45 outputs a shutter opening / closing timing signal for controlling the opening / closing of the shutter of the shutter glasses 50 to the timing signal output unit 46 when displaying the 3D image on the panel 10. Note that the control signal generation circuit 45 turns on the shutter opening / closing timing signal (“1”) when the shutter of the shutter glasses 50 is opened (a state in which visible light is transmitted), and closes the shutter of the shutter glasses 50 (visible). The shutter opening / closing timing signal is turned off (“0").
- the shutter opening / closing timing signal is turned on when the right eye field based on the right eye image signal of the 3D image is displayed on the panel 10 and turned off when the left eye field is displayed based on the left eye image signal. ON when displaying the left-eye field based on the timing signal for right eye shutter opening / closing and the left-eye image signal of the 3D image, and OFF when displaying the right-eye field based on the right-eye image signal. And a left-eye timing signal (left-eye shutter opening / closing timing signal).
- the frequencies of the horizontal synchronization signal and the vertical synchronization signal are not limited to the above-described numerical values.
- the control signal generation circuit 45 determines which of the 2D image signal and the 3D image signal is based on the determination signal. It may be configured to determine whether the input has been made.
- Scan electrode drive circuit 43 includes an initialization waveform generation circuit, a sustain pulse generation circuit, and a scan pulse generation circuit (not shown in FIG. 3), and a drive voltage waveform based on a control signal supplied from control signal generation circuit 45. Is applied to each of scan electrode SC1 to scan electrode SCn.
- the initialization waveform generation circuit generates an initialization waveform to be applied to scan electrode SC1 through scan electrode SCn based on the control signal during the initialization period.
- the sustain pulse generating circuit generates a sustain pulse to be applied to scan electrode SC1 through scan electrode SCn based on the control signal during the sustain period.
- the scan pulse generating circuit includes a plurality of scan electrode driving ICs (scan ICs), and generates scan pulses to be applied to scan electrode SC1 through scan electrode SCn based on a control signal during an address period.
- Sustain electrode drive circuit 44 includes a sustain pulse generation circuit and a circuit for generating voltage Ve1 and voltage Ve2 (not shown in FIG. 3), and a drive voltage waveform based on a control signal supplied from control signal generation circuit 45. Is applied to each of sustain electrode SU1 through sustain electrode SUn. In the sustain period, a sustain pulse is generated based on the control signal and applied to sustain electrode SU1 through sustain electrode SUn.
- the data electrode driving circuit 42 supplies the image data based on the 2D image signal or the data for each subfield constituting the image data for the right eye and the image data for the left eye based on the 3D image signal to the data electrodes D1 to Dm. Convert to the corresponding signal. Then, based on the signal and the control signal supplied from the control signal generating circuit 45, the data electrodes D1 to Dm are driven. In the address period, an address pulse is generated and applied to each of the data electrodes D1 to Dm.
- the timing signal output unit 46 includes a light emitting element such as an LED (Light Emitting Diode).
- the shutter opening / closing timing signal is converted into an infrared signal, for example, and supplied to the shutter glasses 50.
- the shutter glasses 50 include a signal receiving unit (not shown) that receives a signal (for example, an infrared signal) output from the timing signal output unit 46, and a right-eye shutter 52R and a left-eye shutter 52L.
- the right-eye shutter 52R and the left-eye shutter 52L can be opened and closed independently.
- the shutter glasses 50 open and close the right-eye shutter 52R and the left-eye shutter 52L based on the shutter opening / closing timing signal supplied from the timing signal output unit 46.
- the right-eye shutter 52R opens (transmits visible light) when the right-eye timing signal is on, and closes (blocks visible light) when it is off.
- the left-eye shutter 52L opens (transmits visible light) when the left-eye timing signal is on, and closes (blocks visible light) when it is off.
- the right-eye shutter 52R and the left-eye shutter 52L can be configured using liquid crystal, for example.
- the material constituting the shutter is not limited to liquid crystal, and any material can be used as long as it can switch between blocking and transmitting visible light at high speed. .
- the plasma display device 40 in the present embodiment drives the panel 10 by the subfield method.
- the subfield method one field is divided into a plurality of subfields on the time axis, and a luminance weight is set for each subfield. Therefore, each field has a plurality of subfields.
- Each subfield has an initialization period, an address period, and a sustain period.
- an initializing operation is performed in which initializing discharge is generated in the discharge cells and wall charges necessary for the address discharge in the subsequent address period are formed on each electrode.
- a scan pulse is applied to the scan electrode 22 and an address pulse is selectively applied to the data electrode 32, an address discharge is selectively generated in the discharge cells to emit light, and a sustain discharge is generated in the subsequent sustain period.
- An address operation for forming wall charges to be generated in the discharge cells is performed.
- the sustain pulses of the number obtained by multiplying the luminance weight set in each subfield by a predetermined proportional constant are alternately applied to the scan electrode 22 and the sustain electrode 23, and the address discharge was generated in the immediately preceding address period.
- a sustain discharge is generated in the discharge cell, and a sustain operation for emitting light from the discharge cell is performed.
- This proportionality constant is the luminance magnification.
- the luminance weight represents a ratio of the luminance magnitudes displayed in each subfield, and the number of sustain pulses corresponding to the luminance weight is generated in the sustain period in each subfield. Therefore, for example, the subfield with the luminance weight “8” emits light with a luminance about eight times that of the subfield with the luminance weight “1”, and emits light with about four times the luminance of the subfield with the luminance weight “2”.
- the sustain pulse is applied to the scan electrode 22 and the sustain electrode 23 four times in the sustain period of the subfield having the luminance weight “2”. Therefore, the number of sustain pulses generated in the sustain period is 8.
- each subfield is selectively emitted to display various gradations, and the image is displayed on the panel 10. Can be displayed.
- the initialization operation includes all-cell initialization operation that generates an initializing discharge in the discharge cells regardless of the operation of the immediately preceding subfield, and the address discharge is generated in the immediately preceding subfield address period and is maintained in the sustain period.
- an ascending rising waveform voltage and a descending falling waveform voltage are applied to the scan electrode 22 to generate an initializing discharge in all the discharge cells in the image display region.
- the all-cell initialization operation is performed (hereinafter, the initialization period in which the all-cell initialization operation is performed is referred to as “all-cell initialization period”, A subfield having an all-cell initializing period is referred to as an “all-cell initializing subfield”), and a selective initializing operation is performed in an initializing period of another subfield (hereinafter, an initializing period in which the selective initializing operation is performed). Is referred to as a “selective initialization period”, and a subfield having a selective initialization period is referred to as a “selective initialization subfield”.
- the all-cell initializing operation is performed in the initializing period of the first subfield (subfield SF1), and the selective initializing operation is performed in the initializing periods of the other subfields.
- the initializing discharge can be generated in all the discharge cells at least once in one field, and the addressing operation after the initializing operation for all the cells can be stabilized.
- light emission not related to image display is only light emission due to discharge in the all-cell initializing operation in the subfield SF1. Therefore, the black luminance that is the luminance of the black display region where no sustain discharge occurs is only weak light emission in the all-cell initialization operation, and an image with high contrast can be displayed on the panel 10.
- the number of subfields constituting one field and the luminance weight of each subfield are not limited to the above-described numerical values.
- the structure which switches a subfield structure based on an image signal etc. may be sufficient.
- the image signal input to the plasma display device 40 is a 2D image signal or a 3D image signal
- the plasma display device 40 drives the panel 10 in accordance with each image signal.
- driving voltage waveforms applied to each electrode of the panel 10 when a 2D image signal is input to the plasma display device 40 will be described.
- driving voltage waveforms applied to the electrodes of the panel 10 when a 3D image signal is input to the plasma display device 40 will be described.
- FIG. 4 schematically shows drive voltage waveforms applied to each electrode of panel 10 used in the plasma display device according to one embodiment of the present invention.
- FIG. 4 shows scan electrode SC1 that performs the address operation first in the address period, scan electrode SCn that performs the address operation last in the address period, sustain electrode SU1 to sustain electrode SUn, and data electrode D1 to data electrode Dm.
- the drive voltage waveform to be applied is shown.
- Scan electrode SCi, sustain electrode SUi, and data electrode Dk in the following represent electrodes selected based on image data (data indicating light emission / non-light emission for each subfield) from among the electrodes.
- FIG. 4 shows driving voltage waveforms in two subfields, that is, subfield SF1 and subfield SF2.
- the subfield SF1 is a subfield for performing an all-cell initialization operation
- the subfield SF2 is a subfield for performing a selective initialization operation. Therefore, the waveform shape of the drive voltage applied to the scan electrode 22 during the initialization period differs between the subfield SF1 and the subfield SF2.
- the drive voltage waveform in the other subfield is substantially the same as the drive voltage waveform in subfield SF2 except that the number of sustain pulses generated in the sustain period is different.
- one field is divided into eight subfields (subfield SF1, subfield SF2,..., Subfield SF8).
- luminance weights of (1, 2, 4, 8, 16, 32, 64, 128) are set in each of the subfields SF1 to SF8 will be described.
- subfield SF1 generated at the beginning of the field is set to the subfield with the smallest luminance weight, and thereafter the luminance weight is sequentially increased.
- the luminance weight is set to each subfield so that the subfield SF8 generated at the end of the field is the subfield having the largest luminance weight.
- the number of subfields constituting one field and the luminance weight of each subfield are not limited to the above values.
- subfield SF1 which is an all-cell initialization subfield
- the voltage 0 (V) is applied to the data electrode D1 to the data electrode Dm and the sustain electrode SU1 to the sustain electrode SUn.
- Scan electrode SC1 to scan electrode SCn are applied with voltage Vi1 after applying voltage 0 (V), and gradually increase from voltage Vi1 to voltage Vi2 (eg, with a gradient of 1.3 V / ⁇ sec).
- a ramp waveform voltage (hereinafter referred to as “lamp voltage L1”) is applied.
- Voltage Vi1 is set to a voltage lower than the discharge start voltage with respect to sustain electrode SU1 through sustain electrode SUn, and voltage Vi2 is set to a voltage exceeding the discharge start voltage.
- positive voltage Ve1 is applied to sustain electrode SU1 through sustain electrode SUn, and voltage 0 (V) is applied to data electrode D1 through data electrode Dm.
- Scan electrode SC1 through scan electrode SCn have a downward ramp waveform voltage (hereinafter referred to as “ramp voltage L2”) that gently decreases from voltage Vi3 toward negative voltage Vi4 (eg, with a gradient of ⁇ 2.5 V / ⁇ sec). Applied).
- Voltage Vi3 is set to a voltage lower than the discharge start voltage with respect to sustain electrode SU1 through sustain electrode SUn, and voltage Vi4 is set to a voltage exceeding the discharge start voltage.
- While this ramp voltage L2 is applied to scan electrode SC1 through scan electrode SCn, between discharge electrode SC1 through scan electrode SCn and sustain electrode SU1 through sustain electrode SUn, and between scan electrode SC1 through scan electrode SCn.
- a weak initializing discharge is generated between the data electrode D1 and the data electrode Dm. Then, the negative wall voltage on scan electrode SC1 through scan electrode SCn and the positive wall voltage on sustain electrode SU1 through sustain electrode SUn are weakened, and the positive wall voltage on data electrode D1 through data electrode Dm is used for the write operation. It is adjusted to a suitable value.
- the initialization operation in the initialization period of the subfield SF1 that is, the all-cell initialization operation that forcibly generates the initialization discharge in all the discharge cells is completed, and the subsequent address operation is performed in all the discharge cells. Necessary wall charges are formed on each electrode.
- voltage Ve2 is applied to sustain electrode SU1 through sustain electrode SUn
- a negative scan pulse having a negative voltage Va is applied to the scan electrode SC1 in the first row where the address operation is performed first.
- a positive address pulse of a positive voltage Vd is applied to the data electrode Dk of the discharge cell that should emit light in the first row of the data electrodes D1 to Dm.
- the voltage difference at the intersection between the data electrode Dk of the discharge cell to which the address pulse of the voltage Vd is applied and the scan electrode SC1 is the difference between the externally applied voltage (voltage Vd ⁇ voltage Va) and the wall voltage on the data electrode Dk and the scan electrode.
- the difference from the wall voltage on SC1 is added.
- the voltage difference between data electrode Dk and scan electrode SC1 exceeds the discharge start voltage, and a discharge is generated between data electrode Dk and scan electrode SC1.
- the voltage difference between sustain electrode SU1 and scan electrode SC1 is the difference between the externally applied voltages (voltage Ve2 ⁇ voltage Va) and sustain electrode SU1.
- the difference between the upper wall voltage and the wall voltage on the scan electrode SC1 is added.
- the sustain electrode SU1 and the scan electrode SC1 are not easily discharged but are likely to be discharged. Can do.
- the discharge generated between the data electrode Dk and the scan electrode SC1 is triggered to generate a discharge between the sustain electrode SU1 and the scan electrode SC1 in the region intersecting the data electrode Dk.
- an address discharge is generated in the discharge cell (discharge cell to emit light) to which the scan pulse and the address pulse are simultaneously applied, a positive wall voltage is accumulated on the scan electrode SC1, and a negative wall is formed on the sustain electrode SU1. A voltage is accumulated, and a negative wall voltage is also accumulated on the data electrode Dk.
- a scan pulse is applied to the scan electrode SC2 in the second row
- an address pulse is applied to the data electrode Dk corresponding to the discharge cell to emit light in the second row
- an address operation in the discharge cell in the second row is performed.
- the above address operation is sequentially performed in the order of scan electrode SC3, scan electrode SC4,..., Scan electrode SCn until the discharge cell in the n-th row, and the address period of subfield SF1 is completed.
- address discharge is selectively generated in the discharge cells to emit light, and wall charges are formed in the discharge cells.
- the voltage difference between the scan electrode SCi and the sustain electrode SUi causes the voltage Vs of the sustain pulse to be the wall voltage on the scan electrode SCi and the wall voltage on the sustain electrode SUi. The difference between and is added.
- the voltage difference between scan electrode SCi and sustain electrode SUi exceeds the discharge start voltage, and a sustain discharge occurs between scan electrode SCi and sustain electrode SUi. Then, the phosphor layer 35 emits light by the ultraviolet rays generated by this discharge. Further, due to this discharge, a negative wall voltage is accumulated on scan electrode SCi, and a positive wall voltage is accumulated on sustain electrode SUi. Furthermore, a positive wall voltage is also accumulated on the data electrode Dk. However, no sustain discharge occurs in the discharge cells in which no address discharge has occurred during the address period.
- sustain pulses of the number obtained by multiplying the luminance weight by a predetermined luminance magnification are alternately applied to scan electrode SC1 through scan electrode SCn and sustain electrode SU1 through sustain electrode SUn.
- a ramp waveform voltage (hereinafter referred to as “erase ramp voltage L3”) that gradually increases from 0 (V) toward voltage Vers (for example, with a gradient of about 10 V / ⁇ sec) is applied to scan electrode SC1 through scan electrode SCn.
- the selective initializing operation is performed in which a drive voltage waveform in which the first half of the initializing period in the subfield SF1 is omitted is applied to each electrode.
- voltage Ve1 is applied to sustain electrode SU1 through sustain electrode SUn, and voltage 0 (V) is applied to data electrode D1 through data electrode Dm.
- Scan electrode SC1 to scan electrode SCn have the same gradient as ramp voltage L2 (eg, about ⁇ 2.5 V / ⁇ sec) from negative voltage Vi4 to a voltage lower than the discharge start voltage (eg, voltage 0 (V)).
- a ramp waveform voltage (hereinafter referred to as “lamp voltage L4”) is applied.
- Voltage Vi4 is set to a voltage exceeding the discharge start voltage with respect to sustain electrode SU1 through sustain electrode SUn.
- the initialization operation in the subfield SF2 is selectively performed in the discharge cell in which the address operation is performed in the address period of the immediately preceding subfield, that is, in the discharge cell in which the sustain discharge is generated in the sustain period of the immediately preceding subfield.
- a selective initializing operation for generating initializing discharge is performed.
- a drive voltage waveform similar to that in the address period of the subfield SF1 is applied to each electrode, and an address operation for accumulating wall voltage on each electrode of the discharge cell to emit light is performed.
- the number of sustain pulses corresponding to the luminance weight is alternately applied to scan electrode SC1 through scan electrode SCn and sustain electrode SU1 through sustain electrode SUn.
- a sustain discharge is generated in the discharge cell that has generated the address discharge.
- each subfield after subfield SF3 In the initialization period and address period of each subfield after subfield SF3, the same drive voltage waveform as that in the initialization period and address period of subfield SF2 is applied to each electrode. In the sustain period of each subfield after subfield SF3, the drive voltage waveform similar to that of subfield SF2 is applied to each electrode except for the number of sustain pulses generated in the sustain period.
- Voltage Va ⁇ 180 (V)
- voltage Vs 190 (V)
- voltage Vers 190 (V)
- voltage Ve1 125 (V)
- voltage Ve2 130 (V)
- voltage Vd 60 (V) It is set.
- FIG. 5 is a waveform diagram schematically showing the drive voltage waveform applied to each electrode of panel 10 used in plasma display device 40 in one embodiment of the present invention and the opening / closing operation of shutter glasses 50.
- FIG. 5 shows scan electrode SC1 that performs the address operation first in the address period, scan electrode SCn that performs the address operation last in the address period, sustain electrode SU1 to sustain electrode SUn, and data electrode D1 to data electrode Dm.
- the drive voltage waveform to be applied is shown.
- FIG. 5 shows opening / closing operations of the right-eye shutter 52R and the left-eye shutter 52L.
- the 3D image signal is a stereoscopic image signal in which a right-eye image signal and a left-eye image signal are alternately repeated for each field.
- the plasma display device 40 alternately repeats the right-eye field for displaying the right-eye image signal and the left-eye field for displaying the left-eye image signal, so that the right-eye image and the left-eye image are displayed. Images for use are displayed on the panel 10 alternately. For example, among the three fields shown in FIG. 5 (field F1 to field F3), the field F1 and the field F3 are right-eye fields, and the right-eye image signal is displayed on the panel 10.
- a field F2 is a left-eye field, and displays a left-eye image signal on the panel 10. In this way, the plasma display device 40 displays a stereoscopic 3D image composed of the right-eye image and the left-eye image on the panel 10.
- the user viewing the 3D image displayed on the panel 10 through the shutter glasses 50 recognizes the images (right-eye image and left-eye image) displayed in two fields as one 3D image. For this reason, the number of 3D images displayed on the panel 10 per unit time (for example, 1 second) is observed by the user as half the field frequency (the number of fields generated per second).
- the field frequency of the 3D image displayed on the panel (the number of fields generated per second) is 60 Hz
- the right-eye image and the left-eye image displayed on the panel 10 per second are 30 each. Therefore, the user observes 30 3D images per second. Therefore, in order to display 60 3D images per second, the field frequency must be set to 120 Hz, which is twice 60 Hz. Therefore, in the present embodiment, when displaying the image with a low field frequency by setting the field frequency to twice the normal frequency (for example, 120 Hz) so that the user can smoothly observe the moving image of the 3D image. Image flicker that tends to occur is reduced.
- the user views the 3D image displayed on the panel 10 through the shutter glasses 50 that independently open and close the right-eye shutter 52R and the left-eye shutter 52L in synchronization with the right-eye field and the left-eye field.
- the user can observe the right-eye image only with the right eye and the left-eye image with only the left eye, so that the 3D image displayed on the panel 10 can be stereoscopically viewed.
- the right-eye field and the left-eye field differ only in the image signal to be displayed. They are the same as each other. Therefore, hereinafter, when it is not necessary to distinguish between “for right eye” and “for left eye”, the field for right eye and the field for left eye are simply abbreviated as fields.
- the right-eye image signal and the left-eye image signal are simply abbreviated as image signals.
- the field configuration is also referred to as a subfield configuration.
- the plasma display device 40 when the panel 10 is driven by the 3D image signal, the plasma display device 40 according to the present embodiment reduces the field frequency in order to reduce flicker (a phenomenon in which the display image appears to flicker).
- the 2D image signal is doubled (for example, 120 Hz) when displayed on the panel 10. Therefore, one field period (for example, 8.3 msec) for displaying the 3D image signal on the panel 10 is half of one field period (for example, 16.7 msec) for displaying the 2D image signal on the panel 10. It becomes.
- the number of subfields constituting one field is smaller than when the panel 10 is driven by the 2D image signal.
- the right-eye field and the left-eye field are each composed of six subfields (subfield SF1, subfield SF2, subfield SF3, subfield SF4, subfield SF5, and subfield SF6) will be described.
- Each subfield has an initialization period, an address period, and a sustain period, as in the case where panel 10 is driven by a 2D image signal.
- the all-cell initializing operation is performed in the initializing period of the subfield SF1
- the selective initializing operation is performed in the initializing periods of the other subfields.
- each subfield of subfield SF1 to subfield SF6 has a luminance weight of (1, 16, 8, 4, 2, 1).
- the subfield SF1 generated at the beginning of the field is the subfield with the smallest luminance weight
- the subfield SF2 generated second is the subfield with the largest luminance weight
- a luminance weight is set in each subfield so that the luminance weight is sequentially decreased.
- the drive voltage waveform applied to each electrode in each subfield is the same as that when displaying the 2D image signal on the panel 10 except that the number of sustain pulses generated in the sustain period is different, and thus the description thereof is omitted.
- the luminance weights are sequentially reduced in the order in which the subfields are generated, except for the subfield SF1, in each subfield.
- the luminance weight of each subfield is made smaller as the subfield occurs later in time. This is due to the following reason.
- the phosphor layer 35 used in the panel 10 has afterglow characteristics depending on the material forming the phosphor.
- This afterglow is a phenomenon in which the phosphor continues to emit light after the end of discharge.
- the intensity of afterglow is proportional to the luminance when the phosphor emits light, and the higher the luminance when the phosphor emits light, the stronger the afterglow.
- afterglow decays with a time constant according to the characteristics of the phosphor, and the luminance gradually decreases with time. However, afterglow persists for several milliseconds after the end of the sustain discharge.
- Light emission generated in a subfield with a large luminance weight is higher in luminance than light emission generated in a subfield with a small luminance weight. Therefore, the afterglow due to light emission generated in a subfield with a large luminance weight has higher luminance and the time required for attenuation than the afterglow due to light emission generated in a subfield with a small luminance weight.
- the afterglow leaking into the subsequent field increases compared to when the final subfield is a subfield with a small luminance weight.
- the plasma display device 40 in which the right-eye field and the left-eye field are alternately generated to display a 3D image on the panel 10, when the afterglow generated in one field leaks into the subsequent field, the afterglow is It is observed by the user as unnecessary light emission not related to the image signal. This phenomenon is referred to as “crosstalk” in the present embodiment.
- the image display quality is image display quality for a user who views a 3D image through the shutter glasses 50.
- a subfield with a large luminance weight is generated early in one field, and strong afterglow is converged within its own field as much as possible.
- the last subfield of one field is made a subfield with a small luminance weight, and leakage of afterglow into the next field should be reduced as much as possible.
- a subfield having a relatively large luminance weight is generated at the beginning of the field, and thereafter the luminance weight is decreased in the order in which the subfields are generated. It is desirable to make the last subfield of the field a subfield with a relatively small luminance weight so that afterglow leakage into the next field is reduced as much as possible.
- the luminance weight of each subfield excluding the subfield SF1 is set to be smaller as the subfield generated later in time.
- the number of subfields constituting one field and the luminance weight of each subfield are not limited to the above values.
- the subfield SF1 is the subfield with the smallest luminance weight
- the subfield SF2 is the subfield with the largest luminance weight
- the luminance weight is successively reduced after the subfield SF3
- the last subfield of the field is the luminance weight. May be the second smallest subfield.
- subfield SF1 is an all-cell initializing subfield. Therefore, in the initializing period of subfield SF1, initializing discharge can be generated in all the discharge cells, and wall charges and priming particles necessary for the address operation can be generated.
- the initializing discharge is generated in the all-cell initializing operation in the subfield SF1
- wall charges and priming particles are gradually lost, and the writing operation in the final subfield may become unstable.
- the addressing operation tends to be unstable in the discharge cell that performs the addressing operation only in the last subfield of one field.
- wall charges and priming particles are replenished by the occurrence of sustain discharge.
- wall charges and priming particles are replenished by the sustain discharge.
- a subfield having a relatively small luminance weight has a higher frequency of sustain discharge than a subfield having a relatively large luminance weight.
- the luminance weight of each subfield may be set to be smaller in a subfield that occurs later in time in one field. desirable.
- the subfield having the largest luminance weight is set as the first subfield, the number of discharge cells in which wall charges and priming particles are replenished by the sustain discharge in the first subfield of the field is reduced.
- a subfield having a large luminance weight has a longer sustain period. Therefore, the writing operation may become unstable in the subsequent subfield.
- the luminance weight of each subfield is made smaller in the subfield generated later in time in one field. It is desirable to set a subfield configuration in which a subfield with a large luminance weight is generated early in one field and a sustain discharge is generated early in the field to replenish wall charges and priming particles. .
- the subfield SF1 is an auxiliary subfield for the purpose of stabilizing the write operation in the subsequent subfield.
- the subfield SF1 is a subfield that generates a sustain discharge in the sustain period in all the discharge cells in the image display area. Therefore, the subfield SF1 is a subfield that does not contribute to gradation display.
- the subfield SF2 is the subfield having the largest luminance weight, and the luminance weights of the subfields after the subfield SF3 are sequentially reduced.
- the right eye shutter 52R and the left eye shutter 52L of the shutter glasses 50 are shutter opening / closing timing signals (right eye shutter opening / closing timing signals and left eye shutter opening / closing timing signals) output from the timing signal output unit 46 and received by the shutter glasses 50.
- the opening / closing operation of the shutter is controlled based on the on / off state.
- the control signal generating circuit 45 is in the period for all cells in the subfield SF1, that is, in the subfield SF1 in both the right eye field and the left eye field.
- the shutter opening / closing timing signal is generated so that both the right-eye shutter opening / closing timing signal and the left-eye shutter opening / closing timing signal are turned off during the period from to the maintenance period.
- the right-eye shutter 52R is closed until the sustain period of the subfield SF1 that is the first subfield ends, and the subfield SF2 is maintained.
- a shutter opening / closing timing signal (right eye shutter opening / closing timing signal) is generated so that it opens before the period starts and closes after generation of all sustain pulses in the sustain period of the last subfield (for example, subfield SF6) is completed. To do.
- the left-eye shutter 52L is closed until the maintenance period of the subfield SF1 ends, opens before the maintenance period of the subfield SF2 starts, and the final sub A shutter opening / closing timing signal (left-eye shutter opening / closing timing signal) is generated so as to be closed after generation of all sustain pulses in the sustain period of the field (for example, subfield SF6) is completed. Thereafter, the same operation is repeated in each field.
- shutter glasses 50 have an initialization period (all-cell initialization period) of the all-cell initialization subfield (subfield SF1) in both the right-eye field and the left-eye field.
- the right-eye shutter 52R and the left-eye shutter 52L are both closed.
- the light emission generated by the all-cell initializing operation and the maintaining operation of the subfield SF1 is blocked by the right-eye shutter 52R and the left-eye shutter 52L, and does not enter the eyes of the user. Therefore, the user who views the 3D image through the shutter glasses 50 cannot see the light emitted by the all-cell initializing operation and the maintaining operation of the subfield SF1, and the luminance of the emitted light is reduced in the black luminance.
- the subfield SF1 can be set as an auxiliary subfield. That is, the sustain discharge for replenishing the subfield SF1 with wall charges and priming particles always occurs in all the discharge cells in the image display area, but for the user who views the 3D image through the shutter glasses 50. , It can be a subfield that does not affect the black luminance.
- the period in which both the right-eye shutter 52R and the left-eye shutter 52L are closed is the period from the initialization period (all-cell initialization period) to the sustain period of the all-cell initialization subfield (subfield SF1).
- the period during which both the right-eye shutter 52R and the left-eye shutter 52L are closed can be made relatively long, and the afterglow can be attenuated more during that period. Therefore, it is possible not only to block light emission by the sustain discharge of the subfield SF1 but also to make the afterglow from the previous field less visible to the user who views the 3D image through the shutter glasses 50. Thereby, the effect of reducing crosstalk can be further enhanced.
- the timing at which the shutter opening / closing timing signal is switched from on to off and from off to on is set in advance according to the characteristics of the shutter glasses 50 and the field configuration, and the control signal generation circuit 45 is set in advance. In response to the timing, a shutter opening / closing timing signal is generated.
- the above-described “shutter closed” state is not limited to the state in which the right-eye shutter 52R and the left-eye shutter 52L are completely closed.
- the above-described “shutter opened” state is not limited to the state in which the right-eye shutter 52R and the left-eye shutter 52L are completely opened.
- FIG. 6 is a diagram schematically showing the subfield configuration and the open / closed state of the right-eye shutter 52R and the left-eye shutter 52L when a 3D image is displayed on the plasma display device 40 in one embodiment of the present invention.
- FIG. 6 shows the drive voltage waveform applied to scan electrode SC1 and the open / closed states of shutter 52R for right eye and shutter 52L for left eye of shutter glasses 50.
- FIG. 6 shows two fields (right-eye field F1 and left-eye field F2).
- FIG. 6 is a diagram showing the open / closed state of the shutter glasses 50, and shows the open / closed state of the right-eye shutter 52R and the left-eye shutter 52L using the transmittance.
- the transmittance means that the state where the shutter is fully opened is 100% transmittance (maximum transmittance), and the state where the shutter is completely closed is transmittance 0% (transmittance is minimum), so that visible light is transmitted.
- the percentage is expressed as a percentage.
- the vertical axis represents relative shutter transmittance
- the horizontal axis represents time.
- the left-eye shutter 52L that has been opened so far is completely closed, and the left-eye shutter is closed. It is desirable to set the timing for closing the shutter so that the transmittance of both the 52L and the right-eye shutter 52R is 0%. Further, at time t5 immediately before the start of the all-cell initialization operation in the field F2, the right-eye shutter 52R that has been opened so far is completely closed, and the transmittance of both the left-eye shutter 52L and the right-eye shutter 52R becomes 0%. Thus, it is desirable to set the timing for closing the shutter.
- the right-eye shutter 52R When the shutter of the shutter glasses 50 is opened, the right-eye shutter 52R is completely opened and the transmittance of the right-eye shutter 52R is 100% at time t3 immediately before the start of the maintenance period of the subfield SF2 of the field F1.
- the timing for opening the shutter is set so that the left-eye shutter 52L is completely opened and the transmittance of the left-eye shutter 52L is 100%. It is desirable.
- the opening / closing operation of the shutter is not limited to this configuration.
- the shutter glasses 50 it takes time corresponding to the characteristics of the material (for example, liquid crystal) constituting the shutter from the time when the shutter starts to be completely closed to the time when the shutter is opened, or from the time when the shutter starts to be fully opened.
- the material for example, liquid crystal
- it may take about 0.5 msec from the start of closing the shutter until it is completely closed, and it may take about 2 msec from when the shutter starts to fully open. is there.
- the shutter when closing the shutter, immediately before the start of the all-cell initialization operation, the shutter is set so that the transmittance of the shutter is 30% or less, preferably 10% or less.
- Set the closing timing For example, in the example shown in FIG. 6, the transmittance of the left-eye shutter 52 ⁇ / b> L at the time t ⁇ b> 1 immediately before the start of the all-cell initialization operation in the subfield SF ⁇ b> 1 that is the first subfield of the right-eye field F ⁇ b> 1
- the timing for closing the shutter is set so that it is 30% or less, preferably 10% or less.
- the transmittance of the right-eye shutter 52R is preferably 30% or less, preferably 10% or less.
- the timing for closing the shutter is set so that
- the time from the end of the sustain pulse generation in the sustain period of the last subfield to the start of the all-cell initialization operation in the first subfield is set. Is desirable.
- the right-eye shutter 52R starts to close at time t4 immediately after the end of the sustain pulse generation in the subfield SF6 that is the final subfield of the right-eye field F1
- the right-eye shutter is used at time t5.
- An interval from time t4 to time t5 is provided so that the transmittance of the shutter 52R is 30% or less, preferably 10% or less.
- An interval from time t8 to time t9 is set so that the transmittance of the left-eye shutter 52L is 30% or less, preferably 10% or less at time t9 immediately before the start of the initialization operation.
- the timing for opening the shutter is set so that the transmittance of the shutter is 70% or more, preferably 90% or more, immediately before the start of the sustain period of the subfield SF2. .
- the transmittance of the right-eye shutter 52R is preferably 70% or more, preferably 90% or more.
- the timing for opening the shutter is set.
- the shutter is opened so that the transmittance of the left-eye shutter 52L is 70% or more, preferably 90% or more. Set the timing.
- the transmittance of the right-eye shutter 52R is 70% at time t3.
- an interval from time t2 to time t3 is provided so as to be desirably 90% or more.
- the transmittance of the left-eye shutter 52L is 70% or more at time t7.
- An interval from time t6 to time t7 is provided so that it is desirably 90% or more.
- the opening / closing operation of the shutter is controlled in consideration of the time required from the start of closing the shutter until it is completely closed and the time required from the start of opening the shutter until it is fully opened.
- the first subfield of one field is the all-cell initialization subfield that performs the all-cell initialization operation. Furthermore, the first subfield of one field is an auxiliary subfield that always generates a sustain discharge in all the discharge cells in the image display area of panel 10 during the sustain period.
- the second subfield is configured to have the largest luminance weight, and the third and subsequent subfields are configured to sequentially decrease the luminance weight.
- the shutter glasses 50 are controlled so that both the right-eye shutter 52R and the left-eye shutter 52L are closed from the all-cell initialization period to the sustain period of the subfield SF1. . Accordingly, it is possible to prevent the user who views the 3D image displayed on the panel 10 through the shutter glasses 50 from observing the light emission generated by the all-cell initializing operation and the maintaining operation of the subfield SF1. It becomes possible to provide the user with a 3D image with a good black luminance in which the luminance of light emitted by the discharge is reduced and the contrast is increased.
- subfield SF1 is a subfield intended to replenish wall cells and priming particles in the discharge cell
- the number of sustain pulses generated during the sustain period reaches its purpose.
- the luminance weight of the subfield SF1 is set to “1”.
- it is desirable that the number of sustain pulses generated during the sustain period of subfield SF1 is optimally set according to the characteristics of the panel, the specifications of the plasma display device, and the like.
- the number of sustain pulses generated by multiplying the brightness weight by a predetermined brightness magnification is generated, but in the sustain period of subfield SF1, a predetermined number of times (for example, The sustain pulse may be generated once for each of the scan electrode 22 and the sustain electrode 23.
- the drive voltage waveform applied to scan electrode 22 in the all-cell initialization operation during 3D driving and the drive voltage waveform applied to scan electrode 22 in the all-cell initialization operation during 2D driving are shown.
- the configuration having the same waveform shape has been described, the present invention is not limited to this configuration.
- the gradient of the rising ramp waveform voltage in the all-cell initializing operation during 3D driving is made steeper than the gradient of the rising ramp waveform voltage in the all-cell initializing operation during 2D driving, or all the cells are initialized during 3D driving.
- the gradient of the downward ramp waveform voltage in the operation may be made steeper than the gradient of the downward ramp waveform voltage in the all-cell initialization operation during 2D driving, and the all-cell initialization operation during 3D driving may be performed.
- the address discharge is generated in all the discharge cells in the image display region in the address period of the subfield SF1 at the time of 3D driving, so that the sustain discharge is generated in all the discharge cells in the subsequent sustain period. Shall be generated.
- the present invention is not limited to this configuration. For example, if the slope of the ramp voltage L1 generated during the initialization period is steep and a strong discharge is generated to generate wall charges and priming particles that do not require an address operation, a sustain discharge is performed without performing the address operation. It can also occur. Therefore, it is possible to omit the address period by generating a strong initializing discharge that does not require the address operation in all discharge cells during the initialization period of the subfield SF1 during 3D driving. It is. In this case, the time required for the writing period can be reduced with respect to the subfield SF1 at the time of 3D driving.
- the drive voltage waveforms shown in FIGS. 4, 5, and 6 are merely examples in the embodiment of the present invention, and the present invention is not limited to these drive voltage waveforms.
- the circuit configuration shown in FIG. 3 is merely an example in the embodiment of the present invention, and the present invention is not limited to this circuit configuration.
- FIG. 5 shows an example in which a falling ramp waveform voltage is generated and applied to scan electrode SC1 through scan electrode SCn after the end of subfield SF6 and before the start of subfield SF1. This voltage does not have to be generated.
- scan electrode SC1 through scan electrode SCn, sustain electrode SU1 through sustain electrode SUn, and data electrode D1 through data electrode Dm are all set to 0 (V).
- maintain may be sufficient.
- one field is configured with eight subfields during 2D driving, and one field is configured with six subfields during 3D driving.
- the number of subfields constituting one field is not limited to the above number. For example, by increasing the number of subfields, the number of gradations that can be displayed on the panel 10 can be further increased.
- the luminance weight of the subfield is set to a power of “2”.
- the luminance weight of each subfield of subfield SF1 to subfield SF8 is set to (1, 2) during 2D driving. 4, 8, 16, 32, 64, 128), and in 3D driving, the luminance weights of the subfields SF1 to SF6 are set to (1, 16, 8, 4, 2, 1).
- the luminance weight set in each subfield is not limited to the above numerical values.
- the luminance weight of each subfield of subfield SF1 to subfield SF6 is set to (1, 12, 7, 3, 2, 1), etc., so that the combination of subfields for determining gradation is made redundant.
- the number of subfields constituting one field, the luminance weight of each subfield, and the like may be appropriately set according to the characteristics of the panel 10, the specifications of the plasma display device 40, and the like.
- each circuit block shown in the embodiment of the present invention may be configured as an electric circuit that performs each operation shown in the embodiment, or a microcomputer that is programmed to perform the same operation. May be used.
- the specific numerical values shown in the embodiment of the present invention are set based on the characteristics of the panel 10 having a screen size of 50 inches and the number of display electrode pairs 24 of 1024. It is just an example. The present invention is not limited to these numerical values, and each numerical value is desirably set optimally in accordance with the characteristics of the panel and the specifications of the plasma display device. Each of these numerical values is allowed to vary within a range where the above-described effect can be obtained. Also, the number of subfields constituting one field, the luminance weight of each subfield, etc. are not limited to the values shown in the embodiment of the present invention, and the subfield configuration is based on the image signal or the like. It may be configured to switch.
- the present invention provides a plasma display apparatus that can be used as a 3D image display apparatus, which stabilizes the writing operation and reduces the crosstalk for a user who views the display image through the shutter glasses, and provides a good contrast 3D image. Therefore, it is useful as a method for controlling a plasma display device, a plasma display system, and shutter glasses for the plasma display device.
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Abstract
Description
図1は、本発明の一実施の形態におけるプラズマディスプレイ装置に用いるパネル10の構造を示す分解斜視図である。ガラス製の前面基板21上には、走査電極22と維持電極23とからなる表示電極対24が複数形成されている。そして、走査電極22と維持電極23とを覆うように誘電体層25が形成され、その誘電体層25上に保護層26が形成されている。
21 前面基板
22 走査電極
23 維持電極
24 表示電極対
25,33 誘電体層
26 保護層
31 背面基板
32 データ電極
34 隔壁
35 蛍光体層
40 プラズマディスプレイ装置
41 画像信号処理回路
42 データ電極駆動回路
43 走査電極駆動回路
44 維持電極駆動回路
45 制御信号発生回路
46 タイミング信号出力部
50 シャッタ眼鏡
52R 右目用シャッタ
52L 左目用シャッタ
L1,L2,L4 ランプ電圧
L3 消去ランプ電圧
Claims (5)
- 走査電極と維持電極とからなる表示電極対を有する放電セルを複数備えたプラズマディスプレイパネルと、
初期化期間と書込み期間と維持期間とを有するサブフィールドを複数用いて1フィールドを構成し、前記初期化期間において上り傾斜波形電圧を前記走査電極に印加するとともに前記維持期間において全ての放電セルに維持放電を発生するサブフィールドを1フィールドの先頭サブフィールドにし、右目用画像信号および左目用画像信号を有する画像信号にもとづき前記右目用画像信号を表示する右目用フィールドと前記左目用画像信号を表示する左目用フィールドとを交互に繰り返して前記プラズマディスプレイパネルに画像を表示する駆動回路と、
前記プラズマディスプレイパネルに前記右目用フィールドを表示するときにオンとなり前記左目用フィールドを表示するときにオフとなる右目用タイミング信号と、前記左目用フィールドを表示するときにオンとなり前記右目用フィールドを表示するときにオフとなる左目用タイミング信号とからなるシャッタ開閉用タイミング信号を発生する制御信号発生回路と、を備え、
前記制御信号発生回路は、前記先頭サブフィールドの期間は前記右目用タイミング信号および前記左目用タイミング信号がともにオフになる前記シャッタ開閉用タイミング信号を発生する
ことを特徴とするプラズマディスプレイ装置。 - 前記駆動回路は、前記先頭サブフィールドを除くサブフィールドの維持期間においては輝度重みに輝度倍率を乗じた数の維持パルスを発生し、前記先頭サブフィールドの維持期間においては輝度倍率にかかわらず一定の数の維持パルスを発生する
ことを特徴とする請求項1に記載のプラズマディスプレイ装置。 - 前記駆動回路は、前記先頭サブフィールドの書込み期間において書込み動作を行わないことを特徴とする請求項1に記載のプラズマディスプレイ装置。
- 走査電極と維持電極とからなる表示電極対を有する放電セルを複数備えたプラズマディスプレイパネルと、
初期化期間と書込み期間と維持期間とを有するサブフィールドを複数用いて1フィールドを構成し、前記初期化期間において上り傾斜波形電圧を前記走査電極に印加するとともに前記維持期間において全ての放電セルに維持放電を発生するサブフィールドを1フィールドの先頭サブフィールドにし、右目用画像信号および左目用画像信号を有する画像信号にもとづき前記右目用画像信号を表示する右目用フィールドと前記左目用画像信号を表示する左目用フィールドとを交互に繰り返して前記プラズマディスプレイパネルに画像を表示する駆動回路と、
前記プラズマディスプレイパネルに前記右目用フィールドを表示するときにオンとなり前記左目用フィールドを表示するときにオフとなる右目用タイミング信号と、前記左目用フィールドを表示するときにオンとなり前記右目用フィールドを表示するときにオフとなる左目用タイミング信号とからなるシャッタ開閉用タイミング信号を発生する制御信号発生回路と、
を有するプラズマディスプレイ装置と、
それぞれ独立にシャッタの開閉が可能な右目用シャッタおよび左目用シャッタを有し、前記制御信号発生回路で発生した前記シャッタ開閉用タイミング信号でシャッタの開閉が制御されるシャッタ眼鏡とを備え、
前記シャッタ眼鏡は、前記先頭サブフィールドの期間は前記右目用シャッタおよび前記左目用シャッタがともに閉じた状態となる
ことを特徴とするプラズマディスプレイシステム。 - 走査電極と維持電極とからなる表示電極対を有する放電セルを複数備えたプラズマディスプレイパネルと、
初期化期間と書込み期間と維持期間とを有するサブフィールドを複数用いて1フィールドを構成し、前記初期化期間において上り傾斜波形電圧を前記走査電極に印加するとともに前記維持期間において全ての放電セルに維持放電を発生するサブフィールドを1フィールドの先頭サブフィールドにし、右目用画像信号および左目用画像信号を有する画像信号にもとづき前記右目用画像信号を表示する右目用フィールドと前記左目用画像信号を表示する左目用フィールドとを交互に繰り返して前記プラズマディスプレイパネルに画像を表示する駆動回路と、
前記プラズマディスプレイパネルに前記右目用フィールドを表示するときにオンとなり前記左目用フィールドを表示するときにオフとなる右目用タイミング信号と、前記左目用フィールドを表示するときにオンとなり前記右目用フィールドを表示するときにオフとなる左目用タイミング信号とからなるシャッタ開閉用タイミング信号とを発生する制御信号発生回路と、を備えたプラズマディスプレイ装置に表示される画像の観測に用いられ、それぞれ独立にシャッタの開閉が可能な右目用シャッタおよび左目用シャッタを有するシャッタ眼鏡の制御方法であって、
前記先頭サブフィールドの期間は前記右目用シャッタおよび前記左目用シャッタがともに閉じた状態になるように前記シャッタ眼鏡を制御する
ことを特徴とするプラズマディスプレイ装置用シャッタ眼鏡の制御方法。
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CN2011800054557A CN102714010A (zh) | 2010-03-10 | 2011-03-10 | 等离子显示装置、等离子显示系统、以及等离子显示装置用快门眼镜的控制方法 |
JP2012504336A JPWO2011111389A1 (ja) | 2010-03-10 | 2011-03-10 | プラズマディスプレイ装置、プラズマディスプレイシステム、およびプラズマディスプレイ装置用シャッタ眼鏡の制御方法 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000036969A (ja) * | 1998-07-21 | 2000-02-02 | Nippon Hoso Kyokai <Nhk> | 立体画像表示方法および装置 |
JP2002199416A (ja) * | 2000-12-25 | 2002-07-12 | Nippon Hoso Kyokai <Nhk> | 立体画像表示方法及び立体画像表示装置 |
JP2005202238A (ja) * | 2004-01-16 | 2005-07-28 | Fujitsu Ltd | プラズマディスプレイパネルの駆動方法 |
JP2005202059A (ja) * | 2004-01-14 | 2005-07-28 | Fujitsu Hitachi Plasma Display Ltd | 表示装置およびその駆動方法 |
JP2008070488A (ja) * | 2006-09-12 | 2008-03-27 | Fujitsu Hitachi Plasma Display Ltd | ガス放電表示装置 |
JP2009152897A (ja) * | 2007-12-20 | 2009-07-09 | Toshiba Corp | 立体映像表示装置、立体映像表示方法及び液晶ディスプレイ |
JP2009232249A (ja) * | 2008-03-24 | 2009-10-08 | Toshiba Corp | 立体映像表示装置、立体映像表示方法及び液晶ディスプレイ |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1174850A1 (en) * | 2000-01-26 | 2002-01-23 | Deutsche Thomson-Brandt Gmbh | Method for processing video pictures for display on a display device |
WO2002069647A1 (en) * | 2001-02-22 | 2002-09-06 | Thomson Licensing S.A. | Stereoscopic plasma display with interlacing of fields |
EP1271965A1 (en) * | 2001-06-23 | 2003-01-02 | Deutsche Thomson-Brandt Gmbh | Method and device for processing video frames for stereoscopic display |
JP2004212559A (ja) * | 2002-12-27 | 2004-07-29 | Fujitsu Hitachi Plasma Display Ltd | プラズマディスプレイパネルの駆動方法及びプラズマディスプレイ装置 |
KR20050078444A (ko) * | 2004-01-29 | 2005-08-05 | 삼성에스디아이 주식회사 | 플라즈마 표시 패널의 구동 방법 및 플라즈마 표시 장치 |
KR100667540B1 (ko) * | 2005-04-07 | 2007-01-12 | 엘지전자 주식회사 | 플라즈마 디스플레이 장치 및 그의 구동 방법 |
KR100890292B1 (ko) * | 2006-02-28 | 2009-03-26 | 파나소닉 주식회사 | 플라즈마 디스플레이 패널의 구동 방법 및 플라즈마디스플레이 장치 |
KR20080023933A (ko) * | 2006-09-12 | 2008-03-17 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 이의 구동 방법 |
CN101542563B (zh) * | 2006-11-28 | 2011-12-07 | 松下电器产业株式会社 | 等离子体显示装置及其驱动方法 |
US20080122749A1 (en) * | 2006-11-28 | 2008-05-29 | Yong Duk Kim | Method of driving plasma display panel |
JP2009181105A (ja) * | 2008-02-01 | 2009-08-13 | Hitachi Ltd | プラズマディスプレイ装置 |
US8643707B2 (en) * | 2009-09-07 | 2014-02-04 | Panasonic Corporation | Image signal processing apparatus, image signal processing method, recording medium, and integrated circuit |
US8896676B2 (en) * | 2009-11-20 | 2014-11-25 | Broadcom Corporation | Method and system for determining transmittance intervals in 3D shutter eyewear based on display panel response time |
JPWO2011108310A1 (ja) * | 2010-03-02 | 2013-06-24 | キヤノン株式会社 | 立体映像制御装置(3Dimagecontrolapparatus)及び方法 |
JP2012105013A (ja) * | 2010-11-09 | 2012-05-31 | Canon Inc | 立体映像制御装置及び方法 |
-
2011
- 2011-03-10 CN CN2011800054557A patent/CN102714010A/zh active Pending
- 2011-03-10 US US13/582,956 patent/US20120327070A1/en not_active Abandoned
- 2011-03-10 KR KR1020127020279A patent/KR20120098954A/ko not_active Application Discontinuation
- 2011-03-10 WO PCT/JP2011/001396 patent/WO2011111389A1/ja active Application Filing
- 2011-03-10 JP JP2012504336A patent/JPWO2011111389A1/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000036969A (ja) * | 1998-07-21 | 2000-02-02 | Nippon Hoso Kyokai <Nhk> | 立体画像表示方法および装置 |
JP2002199416A (ja) * | 2000-12-25 | 2002-07-12 | Nippon Hoso Kyokai <Nhk> | 立体画像表示方法及び立体画像表示装置 |
JP2005202059A (ja) * | 2004-01-14 | 2005-07-28 | Fujitsu Hitachi Plasma Display Ltd | 表示装置およびその駆動方法 |
JP2005202238A (ja) * | 2004-01-16 | 2005-07-28 | Fujitsu Ltd | プラズマディスプレイパネルの駆動方法 |
JP2008070488A (ja) * | 2006-09-12 | 2008-03-27 | Fujitsu Hitachi Plasma Display Ltd | ガス放電表示装置 |
JP2009152897A (ja) * | 2007-12-20 | 2009-07-09 | Toshiba Corp | 立体映像表示装置、立体映像表示方法及び液晶ディスプレイ |
JP2009232249A (ja) * | 2008-03-24 | 2009-10-08 | Toshiba Corp | 立体映像表示装置、立体映像表示方法及び液晶ディスプレイ |
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