WO2006112345A1 - プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 - Google Patents
プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 Download PDFInfo
- Publication number
- WO2006112345A1 WO2006112345A1 PCT/JP2006/307816 JP2006307816W WO2006112345A1 WO 2006112345 A1 WO2006112345 A1 WO 2006112345A1 JP 2006307816 W JP2006307816 W JP 2006307816W WO 2006112345 A1 WO2006112345 A1 WO 2006112345A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- discharge
- subfield
- initialization
- period
- address
- Prior art date
Links
Classifications
-
- 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
- G09G3/291—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/292—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
-
- 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
- G09G3/291—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/292—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 controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
- G09G3/2927—Details of initialising
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0238—Improving the black level
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
Definitions
- the present invention relates to a plasma display panel driving method and a plasma display device.
- the present invention relates to a method for driving a plasma display panel and a plasma display device using the same.
- 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 plate and a back plate arranged opposite to each other. Yes.
- a plurality of pairs of display electrodes each consisting of a pair of scan electrodes and sustain electrodes are formed on the front glass substrate in parallel with each other, and a dielectric layer and a protective layer are formed so as to cover the display electrodes.
- the back plate has a plurality of parallel data electrodes on the back glass substrate, a dielectric layer so as to cover them, and a plurality of partition walls formed in parallel with the data electrodes on each of them.
- a phosphor layer is formed on the side surface of the partition wall.
- the front plate and the back plate are arranged opposite to each other so that the display electrode and the data electrode are three-dimensionally crossed, and the discharge gas is sealed in the internal discharge space.
- a discharge cell is formed at a portion where the display electrode and the data electrode face each other.
- ultraviolet light is generated by gas discharge in each discharge cell, and color display is performed by exciting and emitting phosphors of RGB colors with the ultraviolet light.
- a subfield method that is, a method of performing gradation display by combining subfields to emit light after dividing one field period into a plurality of subfields.
- Japanese Patent Application Laid-Open No. 2000-242224 discloses a novel driving method in which light emission not related to gradation display is reduced as much as possible to suppress the increase in black luminance and the contrast ratio is improved.
- Each subfield has an initialization period, an address period, and a sustain period.
- all cell initialization operations in which initialization discharge is performed on all discharge cells that perform image display, or discharges that have undergone sustain discharge in the immediately preceding subfield.
- One of the selective initialization operations is performed to selectively initialize the cell.
- initializing discharge is simultaneously performed in all the discharge cells, and the wall charge history for each individual discharge cell is erased and the wall charges necessary for the subsequent address operation are formed. To do.
- wall charges necessary for the address operation are formed for the discharge cells that have generated a sustain discharge in the immediately preceding subfield.
- scan pulses are sequentially applied to the scan electrodes, and address pulses corresponding to the image signals to be displayed are applied to the data electrodes, so that an address discharge is selectively performed between the scan electrodes and the data electrodes.
- a predetermined number of sustain pulses corresponding to the luminance weight are applied between the scan electrodes and the sustain electrodes, and the discharge cells in which the wall charges are formed by the address discharge are selectively discharged to emit light. Further, by reducing the number of subfields for performing the all-cell initialization operation, light emission that is not related to gradation can be reduced, and an increase in black luminance can be suppressed.
- the present invention provides a predetermined luminance weight for one discharge period in which one field period is generated, an initializing period in which an initializing discharge is generated in the discharge cell, an address period in which an address discharge is generated in the discharge cell, and an address discharge.
- the address discharge is controlled so that the sustain discharge is not generated in the subfield following the subfield without generating the sustain discharge.
- Consecutive two or more subfield forces At least one configured subfield group is included in one field period, and a sustain discharge is generated in the immediately preceding subfield in the initialization period in the first subfield of the subfield group.
- the allotted time is set to be longer than the allotted time for the address discharge when performing all-cell initializing operation that generates initializing discharge for all the discharge cells that display images during the initializing period.
- the step of determining the initialization operation in the initialization period of the first subfield of the subfield group includes the lighting rate of the predetermined subfield with respect to the image signal to be displayed. It may be a step to decide according to.
- This method can also provide a panel driving method capable of displaying an image with good quality while suppressing an increase in black luminance.
- the step of determining the initialization operation in the initialization period of each of the subfields belonging to other than the subfield group is displayed. It may be a step of determining based on the APL of the image signal to be processed. This way
- the brightness of the black display area is low and high contrast image display is possible.
- a plasma display device of the present invention is a plasma display device using the plasma display panel driving method described above. With this configuration, it is possible to provide a plasma display device capable of stabilizing address discharge and displaying an image with good quality while suppressing an increase in black luminance.
- FIG. 1 is a perspective view showing a main part of a panel used in Embodiment 1 of the present invention.
- FIG. 2 is an electrode array diagram of a panel used in the first embodiment of the present invention.
- FIG. 3 is a circuit block diagram of the plasma display device in accordance with the first exemplary embodiment of the present invention.
- FIG. 4 is a drive waveform diagram applied to each electrode of the panel used in Embodiment 1 of the present invention.
- FIG. 5 is a diagram showing coding in Embodiment 1 of the present invention.
- FIG. 6A is a configuration diagram of subfields in Embodiment 1 of the present invention.
- FIG. 6B is a configuration diagram of a subfield in Embodiment 1 of the present invention.
- FIG. 6C is a configuration diagram of subfields in Embodiment 1 of the present invention.
- FIG. 7 is a diagram showing a writing time in the first embodiment of the present invention.
- FIG. 8A is a configuration diagram of subfields in Embodiment 2 of the present invention.
- FIG. 8B is a configuration diagram of subfields in Embodiment 2 of the present invention.
- FIG. 8C is a configuration diagram of subfields in Embodiment 2 of the present invention.
- FIG. 9 is a diagram showing a writing time in the second embodiment of the present invention.
- FIG. 1 is a perspective view showing the main part of the panel used in the first embodiment.
- the panel 1 is configured such that a glass front substrate 2 and a rear substrate 3 are arranged to face each other and a discharge space is formed therebetween.
- a plurality of scanning electrodes 4 and sustaining electrodes 5 constituting display electrodes are formed in parallel with each other.
- a dielectric layer 6 is formed so as to cover the scan electrode 4 and the sustain electrode 5, and a protective layer 7 is formed on the dielectric layer 6.
- a plurality of data electrodes 9 covered with an insulating layer 8 are provided on the back substrate 3, and a partition wall 10 is provided in parallel with the data electrodes 9 on the insulating layer 8 between the data electrodes 9. It has been.
- FIG. 2 is an electrode array diagram of the panel used in the first exemplary embodiment.
- n scan electrodes SCN 1 to SCNn scan electrode 4 in FIG. 1
- n sustain electrodes SUS 1 to SUSn scan electrode 5 in FIG. 1
- m scan electrodes are arranged in the column direction.
- Data electrodes Dl to Dm (data electrode 9 in FIG. 1) are arranged.
- M x n are formed in the space.
- FIG. 3 is a circuit block diagram of the plasma display device in the first exemplary embodiment.
- This plasma display device includes a panel 1, a data electrode drive circuit 12, a scan electrode drive circuit 13, a sustain electrode drive circuit 14, a timing generation circuit 15, an analog-digital (AD) converter 18, a scan number conversion unit 19, A field conversion unit 20, an average 'picture' level (APL) detection unit 30, a lighting rate calculation unit 40, and a power supply circuit (not shown) are provided.
- AD analog-digital
- APL average 'picture' level
- the image signal sig is input to the AD converter 18. Further, the horizontal synchronization signal H and the vertical synchronization signal V are input to the timing generation circuit 15.
- the AD converter 18 converts the image signal sig into digital signal image data, and outputs the image data to the scanning number conversion unit 19 and the APL detection unit 30.
- the APL detection unit 30 detects the average luminance level of the image data.
- the scanning number conversion unit 19 converts the image data into image data corresponding to the number of pixels of the panel 1 and outputs the image data to the subfield conversion unit 20.
- the subfield conversion unit 20 divides the image data of each pixel into a plurality of bits corresponding to a plurality of subfields, and outputs the image data for each subfield to the data electrode driving circuit 12 and the lighting rate calculation unit 40. Based on the image data for each subfield, the lighting rate calculation unit 40 calculates the lighting rate of the subfield, that is, the proportion of discharge cells that generate a sustain discharge.
- the data electrode drive circuit 12 converts the image data for each subfield into a signal corresponding to each data electrode Dl to Dm, and drives each data electrode.
- the timing generation circuit 15 generates various timing signals based on the horizontal synchronization signal H and the vertical synchronization signal V and supplies them to each circuit block.
- Scan electrode drive circuit 13 supplies a drive waveform to scan electrodes SCN1 to SCNn based on the timing signal
- sustain electrode drive circuit 14 applies a drive waveform to sustain electrodes SUSl to SUSn based on the timing signal.
- the timing generation circuit 15 includes the APL output from the APL detection unit 30
- the drive waveform is controlled based on the lighting rate signal output from the lighting rate calculation unit 40. Specifically, as described later, based on the APL and the lighting rate signal, the initialization operation of each subfield constituting one field is determined as one of the all-cell initializing power selective initialization, and one field is selected.
- the time allocated to the address discharge per cell hereinafter abbreviated as “address time” is controlled.
- one field is divided into 12 subfields (SF1, SF2,..., SF12), and each subfield is divided into (1, 2, 3, 6, 11, 18, It shall have a luminance weight of 28, 32, 34, 37, 40, 44).
- FIG. 4 is a drive waveform diagram applied to each electrode of the panel used in the first exemplary embodiment.
- the initialization operation of the first SF is an all-cell initialization operation
- the initialization operation of the second SF is a selective initialization operation.
- the data electrodes Dl to Dm and the sustain electrodes SUSl to SUSn are held at O (V), and the voltage Vp (V) that is equal to or lower than the discharge start voltage with respect to the scan electrodes SCNl to SCNn. Then, a ramp voltage that gradually increases toward the voltage Vr (V) exceeding the discharge start voltage is applied. Then, the first weak initializing discharge is generated in all the discharge cells, negative wall voltage is stored on the scan electrodes SCN1 to SCNn, and positive on the sustain electrodes SUSl to SUSn and the data electrodes D1 to Dm. The wall voltage is stored.
- the wall voltage on the electrode represents a voltage generated by wall charges accumulated on the dielectric layer or the phosphor layer covering the electrode.
- sustain electrodes SUSl to SUSn are maintained at positive voltage Vh (V), and a ramp voltage that gradually decreases from voltage Vg (V) to voltage Va (V) is applied to scan electrodes SCN1 to SCNn. Apply. Then, the second weak initializing discharge is caused in all the discharge cells, the wall voltage on the scan electrodes SCN1 to SCNn and the wall voltage on the sustain electrodes SUSl to SUSn are weakened, and the wall on the data electrodes D1 to Dm is weakened. The voltage is also adjusted to a value suitable for the write operation.
- initializing discharge is performed in all the discharge cells, and priming is generated.
- scan electrodes SCN1 to SCNn are held at ⁇ Vs (V).
- the voltage Vw + Vb (V) which is the sum of the address pulse voltage and the scan pulse voltage, is applied between the scan electrode SCN1 and the data electrode Dk and exceeds the discharge start voltage, so the scan electrode SCN1 and the data electrode Dk Discharge occurs at the intersection with Dk, and progresses to discharge between scan electrode SCN1 and sustain electrode SUS1 of the corresponding discharge cell.
- the wall charges necessary for the subsequent sustain discharge are accumulated.
- the address discharge of the discharge cells to which the address pulse voltage Vw (V) of the first row is applied is completed.
- no discharge is generated and no wall charge is accumulated in the discharge cells to which the address pulse voltage Vw (V) is applied.
- the positive address pulse voltage Vw (V) is applied to the data electrode Dk of the discharge cells in the second and subsequent rows.
- the negative scan pulse voltage Vb (V) is applied to the corresponding scan electrodes in the second and subsequent rows. Since no voltage is applied, the voltage applied between the scan electrode and data electrode Dk in the second and subsequent rows is only the address pulse voltage Vw (V) and does not exceed the discharge start voltage, so address discharge occurs. That's not true.
- a positive write pulse voltage Vw (V) is applied to the data electrode Dk of the discharge cell to be displayed in the second row, and a negative scan pulse is applied to the scan electrode SCN2 in the second row.
- Apply voltage Vb (V) the voltage Vw + Vb (V), which is the sum of the write pulse voltage and the scan pulse voltage, is applied between the scan electrode SCN2 and the data electrode Dk, exceeding the discharge start voltage, and the write pulse voltage in the second row Address discharge occurs in the discharge cell to which Vw (V) is applied.
- no address discharge is generated in the discharge cells to which the address pulse voltage Vw (V) is applied and no wall charges are accumulated.
- the voltage applied between the scanning electrodes of the discharge cells in the third and subsequent rows and the data electrode Dk is only the address pulse voltage Vw (V) and does not exceed the discharge start voltage. It never happens.
- sustain electrodes SUSl to SUSn are returned by 0 (V), and positive sustain pulse voltage Vm (V) is applied to scan electrodes SCN1 to SCNn.
- Vm the sustain pulse voltage
- the voltage due to the wall charge is added to the sustain pulse voltage Vm (V) in the discharge cell in which the address discharge has occurred.
- the wall charge with the polarity reversed accumulates in the discharge cell.
- the scan electrodes SCNl to SCNn are returned to O (V) and a positive sustain pulse voltage Vm (V) is applied to the sustain electrodes SU Sl to SUSN, a sustain discharge occurs in the discharge cell, and the polarity of the wall charges is reduced. Invert.
- sustain pulses alternately to scan electrodes SCNl to SCNn and sustain electrodes SUSl to SUSn sustain discharge is continuously performed in the discharge cells in which address discharge has occurred in the address period.
- sustain electrodes SUSl to SUSn are held at Vh (V)
- data electrodes Dl to Dm are held at O (V)
- voltage Va (V) is applied to scan electrodes SCNl to SCNn. Apply a ramp voltage that drops in the direction of. Then, in the discharge cells that have been sustained and discharged in the sustain period of the previous subfield, a weak initializing discharge occurs, and wall charges necessary for the subsequent address operation are formed. On the other hand, for the discharge cells that did not perform address discharge and sustain discharge in the previous subfield, the wall charge state at the end of the initialization period of the previous subfield is maintained as it is without being discharged.
- the operation during the writing period of the second SF is the same as the operation during the writing period of the first SF.
- the luminance weight in the sustain period of the second SF is different from that of the first SF, the other operations are the same as those in the writing period of the first SF.
- the all-cell initializing operation or selective initializing operation is performed in the initializing period, the writing operation is performed in the writing period, and the sustaining operation is performed in the sustaining period.
- FIG. 5 is a diagram showing a combination of display gradations and subfields that emit light for displaying the gradations, so-called coding, in the first embodiment.
- the subfield indicated by “1” emits light
- the blank subfield emits light.
- the coding feature of the first embodiment is that in the first SF to the sixth SF, light emission and non-light emission of subfields are determined at random according to the gradation to be displayed.
- random coding such a gradation display method
- the address discharge is controlled so that the sustain discharge is not generated in the subfield following the subfield in which the sustain discharge is not generated.
- the light emission and non-light emission of the subfields are determined so that the subfields that emit light starting from the 7th SF are continuous.
- continuous coding When gradation is displayed using continuous coding, there is an advantage that a so-called moving image pseudo contour does not occur. On the other hand, there is a weak point that the gradation that can be displayed is extremely limited.
- the 12 subfields constituting one field are divided into two subfield groups, and the subfield groups (the seventh SF to the seventh SF) having a large luminance weight are divided. 12SF) uses continuous coding, and the luminance weight is small!
- gradation is displayed using random coding to increase the display gradation.
- the writing period of the eighth SF to the twelfth SF excluding the first subfield in the subfield group using continuous coding can be set short. That is, when any subfield from the 8th SF to the 12th SF is caused to emit light, the subfield immediately before that is also a subfield that emits light, which is sufficient during the sustain period of the immediately preceding subfield. This is because a good priming effect is obtained and the subsequent subfield address discharge is stabilized.
- the 7th SF, which is the first subfield of continuous coding is not necessarily a subfield that always emits light. For this reason, it is desirable to perform an all-cell initialization operation in the first subfield of continuous coding to ensure the subsequent write operation.
- the all-cell initialization operation increases the black luminance and increases the time required for driving. . Therefore, in the present invention, the lighting rate of the subfield of continuous coding is predicted, and the initialization of this subfield is all-cell initialization only when the lighting rate is high. In the first embodiment, the lighting rate of the eleventh SF is predicted, and when the value is equal to or greater than the threshold 40%, all cells are initialized during the initialization period of the seventh SF to stabilize the write operation, and the threshold If it is less than 40%, a selective initialization operation is performed to suppress an increase in black luminance.
- FIG. 6 is a configuration diagram of subfields in the panel driving method according to the first embodiment.
- the subfield configuration is switched based on the APL of the image signal to be displayed and the lighting rate of a predetermined subfield.
- Figure 6A shows the configuration used for image signals with an APL of less than 1.5% .All cells are initialized only during the initialization period of the 1st SF, and the initialization periods of the 2nd to 12th SFs are initially selected. This is a sub-field configuration that performs the digitizing operation.
- Figure 6B shows the configuration used when the APL is 1.5% or more and the 11SF lighting rate is less than 40% for the image signal.
- the initialization period for the first SF and the fifth SF is the all-cell initialization period, the second SF to The initialization period of the 4th SF and the 6th to 12th SFs is a subfield configuration that is a selective initialization period.
- Figure 6C shows the configuration used for image signals with an APL of 1.5% or more and an 11th SF lighting rate of 40% or more.
- the initialization period of the 1st SF, 4th SF, and 7th SF is the initialization period for all cells,
- the initialization period of the 2nd SF, 3rd SF, 5th SF, 6th SF, and 8th SF to 12th SF has a subfield configuration that is a selective initialization period.
- the black image display area when displaying an image with a low APL, the black image display area is considered to be wide, so the number of all-cell initializations is reduced and the black display quality is improved. ing. Conversely, when displaying images with a high APL, it is considered that there is no black display area or a small area. Therefore, by increasing the number of all-cell initializations and increasing the priming, the address discharge is stabilized. Furthermore, the lighting rate of a predetermined subfield of continuous coding is predicted, and when the lighting rate is high, sometimes the first subfield of continuous coding is also initialized for all cells, and the stability of address discharge is further improved.
- the black display area can be displayed with low brightness and high contrast, and if the APL is high and the lighting rate is high, all cells are initialized in the first subfield of continuous coding.
- a stable image display is possible by performing the operation.
- FIG. 7 is a diagram showing a writing time in the panel driving method according to the first embodiment.
- the write time per cell from the first SF to the 12th SF is set to (2.3 / zs, 1.9 / zs, 1.8 ⁇ 1. 8 ⁇ 1.
- the write time per cell from the 1st SF to the 12th SF is set as (1.1.1.1). 1. 8, us, 1.8 ⁇ ⁇ . 5 ⁇ (5, 1.5 ⁇ 1. 5 ⁇ 1. 5 ⁇ 1. 5 s, ⁇ . 5 s) Set to 7.
- the write time of the seventh SF when the all-cell initialization operation is performed in the initialization period of the seventh SF, the write time is set to 1.
- the write time is set to 1. For this reason, even if the initialization period of the first subfield of continuous coding is not an all-cell initialization operation and there is a possibility that the priming is insufficient, the writing time of the subsequent writing period is set to be long. Address discharge is generated, and stable sustain discharge can be generated.
- one field is composed of 12 subfields, the number of all-cell initializations is controlled within a range of 1 to 3, and the initial value of the subfield close to the head is set.
- the power which showed the example which gives priority to crystallization This invention is not limited to this.
- the power using the lighting rate of the 11th SF as the predetermined subfield is not limited to the 11th SF, but limited to one subfield But ... For example, a total value obtained by multiplying the lighting rate of a plurality of subfields by the luminance weight may be used.
- FIG. 8 is a diagram showing a subfield configuration according to the second embodiment.
- one field is divided into 14 subfields (SF1, SF2,..., SF1 4), and each subfino redo is (1, 2, 4, 8, 20). 32, 56, 4, 12, 16, 16, 16, 20, 32, 32).
- the luminance weights of the first SF force and the seventh SF increase monotonously, but the luminance weight of the eighth SF decreases gradually and then increases monotonously again.
- Such an arrangement of subfields is effective in suppressing the occurrence of flickering force on an image signal having a low field frequency, such as a PAL image signal.
- the first SF to the fifth SF display the gradation using random coding
- the sixth SF and the seventh SF use continuous coding
- the eighth SF to the tenth SF use random coding
- the eleventh SF to the 14th SF use continuous coding.
- the subfield configuration is switched depending on the APL of the image signal and the lighting rate of the predetermined subfield.
- FIG. 8A shows a configuration used when an image signal having an APL of less than 1.5% is performed.
- the initialization operation of all cells is performed only during the initialization period of the first SF, and the initialization period of the second SF to the 14th SF is selected.
- This is a sub-field configuration that performs the initialization operation.
- Figure 8B shows the configuration used when the APL is 1.5% or more and the 13SF lighting rate is less than 40%, and the initialization period of the 1st SF and 8th SF is the all-cell initialization period, the 2nd SF ⁇
- the initialization period of the 7th SF and the 9th to 14th SFs has a subfield configuration that is a selective initialization period.
- Figure 8C shows the configuration used when the APL is 1.5% or more and the 13th SF lighting rate power is 0% or more.
- the initialization period of the 1st SF, 8th SF, and 11th SF is the all-cell initialization period
- the initialization period of the second SF to the seventh SF, the ninth SF, the tenth SF, and the twelfth SF to the fourteenth SF has a sub-field configuration that is a selective initialization period.
- the black display quality is improved by reducing the number of all-cell initializations when displaying an image with a low APL.
- the address discharge is stabilized by increasing the number of all-cell initializations and increasing priming.
- the first subfield of the subfield group it is assigned to the address discharge when the selective initializing operation is performed during the initializing period. This time is set longer than the time allocated for the address discharge when the all-cell initialization operation is performed during the initialization period.
- FIG. 9 is a diagram showing a writing time in the panel driving method according to the second embodiment. Focusing on the subfield group that performs continuous coding, the first subfield of the 11th to 14th SFs, that is, the 11th SF write time, the lighting rate of the 13th SF is predicted, and when the lighting rate is high, the initialization operation of the 11th SF is also performed. All cells are initialized, and the stability of address discharge is further improved. In addition, when the lighting rate is low, the initialization operation of the 11th SF aims to improve the contrast as a selective initialization, and by setting the write time as long as 1, reliable writing is possible even if priming may be insufficient Discharge occurs and stable sustain discharge can be generated.
- the black display area can be displayed with low luminance and high contrast, and if the APL is high and the lighting rate is high, all cells in the first subfield of continuous coding can be displayed. Performs initialization and enables stable image display.
- the panel driving method of the present invention it is possible to display an image with good quality while suppressing an increase in black luminance, which is useful as an image display device using the panel.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005115302A JP2006293113A (ja) | 2005-04-13 | 2005-04-13 | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
JP2005-115302 | 2005-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006112345A1 true WO2006112345A1 (ja) | 2006-10-26 |
Family
ID=37115068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/307816 WO2006112345A1 (ja) | 2005-04-13 | 2006-04-13 | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070262921A1 (ja) |
JP (1) | JP2006293113A (ja) |
KR (1) | KR100805502B1 (ja) |
CN (1) | CN100463032C (ja) |
WO (1) | WO2006112345A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090085839A1 (en) * | 2006-06-30 | 2009-04-02 | Hirohito Kuriyama | Plasma display apparatus |
EP2104089A1 (en) * | 2007-01-12 | 2009-09-23 | Panasonic Corporation | Plasma display device, and method for driving plasma display panel |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008268686A (ja) * | 2007-04-24 | 2008-11-06 | Matsushita Electric Ind Co Ltd | プラズマディスプレイパネルの駆動方法 |
KR100893686B1 (ko) * | 2007-10-01 | 2009-04-17 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 그 구동 방법 |
WO2009101784A1 (ja) * | 2008-02-14 | 2009-08-20 | Panasonic Corporation | プラズマディスプレイ装置とその駆動方法 |
KR20110033957A (ko) * | 2008-09-11 | 2011-04-01 | 파나소닉 주식회사 | 플라즈마 디스플레이 장치 및 플라즈마 디스플레이 패널의 구동 방법 |
JP5239811B2 (ja) * | 2008-12-11 | 2013-07-17 | パナソニック株式会社 | プラズマディスプレイ装置の駆動方法 |
JP5003714B2 (ja) * | 2009-04-13 | 2012-08-15 | パナソニック株式会社 | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
JPWO2011114672A1 (ja) * | 2010-03-18 | 2013-06-27 | パナソニック株式会社 | プラズマディスプレイ装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH103281A (ja) * | 1996-06-18 | 1998-01-06 | Mitsubishi Electric Corp | 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 |
JP2000181400A (ja) * | 1998-12-14 | 2000-06-30 | Matsushita Electric Ind Co Ltd | 表示装置 |
JP2000242224A (ja) * | 1999-02-22 | 2000-09-08 | Matsushita Electric Ind Co Ltd | Ac型プラズマディスプレイパネルの駆動方法 |
JP2001242823A (ja) * | 2000-02-28 | 2001-09-07 | Nec Corp | プラズマディスプレイパネルの駆動方法及び駆動回路 |
JP2004109838A (ja) * | 2002-09-20 | 2004-04-08 | Nec Corp | Ac型プラズマディスプレイパネルの駆動方法 |
WO2005073946A1 (ja) * | 2004-01-28 | 2005-08-11 | Matsushita Electric Industrial Co., Ltd. | プラズマディスプレイパネルの駆動方法 |
Family Cites Families (17)
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 |
US6369782B2 (en) * | 1997-04-26 | 2002-04-09 | Pioneer Electric Corporation | Method for driving a plasma display panel |
JP3578323B2 (ja) * | 1998-12-25 | 2004-10-20 | パイオニア株式会社 | プラズマディスプレイパネルの駆動方法 |
TW516014B (en) * | 1999-01-22 | 2003-01-01 | Matsushita Electric Ind Co Ltd | Driving method for AC plasma display panel |
JP3578322B2 (ja) * | 1999-03-24 | 2004-10-20 | パイオニア株式会社 | プラズマディスプレイパネルの駆動方法 |
KR20010068700A (ko) * | 2000-01-07 | 2001-07-23 | 김영남 | 플라즈마 디스플레이 패널의 구동방법 |
KR100849002B1 (ko) * | 2001-06-12 | 2008-07-30 | 마츠시타 덴끼 산교 가부시키가이샤 | 플라즈마 디스플레이 패널 표시장치 및 그 구동방법 |
JP3640622B2 (ja) * | 2001-06-19 | 2005-04-20 | 富士通日立プラズマディスプレイ株式会社 | プラズマディスプレイパネルの駆動方法 |
KR20040014663A (ko) * | 2001-07-09 | 2004-02-14 | 마츠시타 덴끼 산교 가부시키가이샤 | 플라즈마 디스플레이 패널 구동방법 및 플라즈마디스플레이 패널 구동장치 |
WO2003032352A2 (en) * | 2001-10-03 | 2003-04-17 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel driving method and apparatus |
KR100493615B1 (ko) * | 2002-04-04 | 2005-06-10 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 구동방법 |
JP4639579B2 (ja) * | 2003-08-07 | 2011-02-23 | パナソニック株式会社 | プラズマディスプレイパネルの駆動方法 |
US7365710B2 (en) * | 2003-09-09 | 2008-04-29 | Samsung Sdi Co. Ltd. | Plasma display panel driving method and plasma display device |
KR100524312B1 (ko) * | 2003-11-12 | 2005-10-28 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 초기화 제어방법 및 장치 |
KR100551124B1 (ko) * | 2003-12-31 | 2006-02-13 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 구동 방법 |
KR100515329B1 (ko) * | 2004-04-12 | 2005-09-15 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 패널 및 그 구동 방법 |
KR20060084101A (ko) * | 2005-01-17 | 2006-07-24 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 그의 구동 방법 |
-
2005
- 2005-04-13 JP JP2005115302A patent/JP2006293113A/ja not_active Ceased
-
2006
- 2006-04-13 KR KR1020077004870A patent/KR100805502B1/ko not_active IP Right Cessation
- 2006-04-13 WO PCT/JP2006/307816 patent/WO2006112345A1/ja active Application Filing
- 2006-04-13 CN CNB2006800009724A patent/CN100463032C/zh not_active Expired - Fee Related
- 2006-04-13 US US11/660,644 patent/US20070262921A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH103281A (ja) * | 1996-06-18 | 1998-01-06 | Mitsubishi Electric Corp | 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 |
JP2000181400A (ja) * | 1998-12-14 | 2000-06-30 | Matsushita Electric Ind Co Ltd | 表示装置 |
JP2000242224A (ja) * | 1999-02-22 | 2000-09-08 | Matsushita Electric Ind Co Ltd | Ac型プラズマディスプレイパネルの駆動方法 |
JP2001242823A (ja) * | 2000-02-28 | 2001-09-07 | Nec Corp | プラズマディスプレイパネルの駆動方法及び駆動回路 |
JP2004109838A (ja) * | 2002-09-20 | 2004-04-08 | Nec Corp | Ac型プラズマディスプレイパネルの駆動方法 |
WO2005073946A1 (ja) * | 2004-01-28 | 2005-08-11 | Matsushita Electric Industrial Co., Ltd. | プラズマディスプレイパネルの駆動方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090085839A1 (en) * | 2006-06-30 | 2009-04-02 | Hirohito Kuriyama | Plasma display apparatus |
US8242977B2 (en) * | 2006-06-30 | 2012-08-14 | Hitachi, Ltd. | Plasma display apparatus with driving and controlling circuit unit |
EP2104089A1 (en) * | 2007-01-12 | 2009-09-23 | Panasonic Corporation | Plasma display device, and method for driving plasma display panel |
EP2104089A4 (en) * | 2007-01-12 | 2010-01-13 | Panasonic Corp | PLASMA DISPLAY PANEL AND ITS EXCITATION METHOD |
US8294635B2 (en) | 2007-01-12 | 2012-10-23 | Panasonic Corporation | Plasma display device and driving method of plasma display panel |
Also Published As
Publication number | Publication date |
---|---|
CN100463032C (zh) | 2009-02-18 |
JP2006293113A (ja) | 2006-10-26 |
US20070262921A1 (en) | 2007-11-15 |
KR100805502B1 (ko) | 2008-02-20 |
KR20070088498A (ko) | 2007-08-29 |
CN101040308A (zh) | 2007-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4992195B2 (ja) | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 | |
KR100793483B1 (ko) | 플라즈마 디스플레이 패널의 구동 방법 | |
US7446734B2 (en) | Method of driving plasma display panel | |
WO2006112345A1 (ja) | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 | |
WO2005073946A1 (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2007041251A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP5152183B2 (ja) | プラズマディスプレイ装置とその駆動方法 | |
JP2006293303A (ja) | プラズマディスプレイパネル、プラズマディスプレイ装置、プラズマディスプレイパネルの駆動装置及びプラズマディスプレイパネルの駆動方法 | |
JP4956911B2 (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2006003398A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP3988728B2 (ja) | プラズマディスプレイパネルの駆動方法 | |
WO2000021064A1 (fr) | Dispositif d'affichage a plasma et son procede de commande | |
JP5017796B2 (ja) | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 | |
JP4736530B2 (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2008083137A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2005338217A (ja) | プラズマディスプレイパネルの駆動方法および表示装置 | |
JP2006317856A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP4120594B2 (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2005301013A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2005321499A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2006003397A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2005321500A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2009198846A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2005338121A (ja) | プラズマディスプレイパネルの駆動方法 | |
JP2006195328A (ja) | プラズマディスプレイパネルの駆動方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 11660644 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020077004870 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200680000972.4 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 06731752 Country of ref document: EP Kind code of ref document: A1 |