JP2011171204A - Plasma display panel and plasma display apparatus - Google Patents

Abstract

An object of the present invention is to realize a plasma display panel with low power consumption and high luminous efficiency.
A front panel in which a plurality of display electrodes are formed on a front substrate and a dielectric layer is formed so as to cover the plurality of display electrodes, and a discharge space is formed between the front panels. And the rear panel on which the barrier ribs 11 and the phosphor layers 12 that define the plurality of data electrodes 9 and partition the discharge space 13 are formed. The dielectric layer 6 of the front panel has an average grain size. A dielectric material including hollow fine particles made of an inorganic oxide having a diameter of 100 nm or less and a maximum particle diameter of 400 nm or less, and a relative dielectric constant ε of 2 or more and 4 or less with a film thickness of 20 μm or less. In addition, a discharge gas containing 15% to 30% by volume of xenon was sealed in the discharge space.
[Selection] Figure 1

Description

  The present invention relates to a plasma display panel and a plasma display apparatus as display devices.

  Since plasma display panels (hereinafter referred to as PDP) can achieve high definition and large screen, 65-inch class televisions have been commercialized. In recent years, PDP has been applied to high-definition televisions having more than twice the number of scanning lines as compared with the conventional NTSC system, and PDP containing no lead component is required in consideration of environmental problems.

  A PDP basically includes a front panel and a back panel. The front panel includes a glass substrate of sodium borosilicate glass by a float method, a display electrode composed of a striped transparent electrode and a bus electrode formed on one main surface of the glass substrate, and a display electrode A dielectric layer that covers and acts as a capacitor, and a protective layer made of magnesium oxide (MgO) formed on the dielectric layer. On the other hand, the back panel includes a glass substrate, striped data electrodes formed on one main surface thereof, a base dielectric layer covering the data electrodes, a partition formed on the base dielectric layer, It is comprised with the fluorescent substance layer which light-emits each of red, green, and blue formed between the partition walls.

  The front panel and the rear panel are arranged to face each other so that the display electrode and the data electrode intersect with each other, and a sealed space is formed by sealing the outer peripheral portion. In the sealed space, xenon (Xe ) / Neon (Ne) and discharge gas such as xenon (Xe) / neon (Ne) / helium (He).

  In the PDP configured as described above, a discharge cell serving as a minimum unit of light emission is formed in each region where the display electrode on the front panel and the data electrode on the rear panel intersect.

  In recent years, PDPs have been required to improve discharge efficiency during sustain discharge from the viewpoint of reducing power consumption. The power loss during driving of the PDP is affected by the dielectric constant of the dielectric layer if the geometrical configuration is the same. In the conventional PDP, the dielectric layer of the front panel is composed of a glass material containing a high relative dielectric constant ε = 9 to 13 and lead oxide or bismuth oxide in its components. There is a demand for a lower relative dielectric constant of a dielectric layer in a panel. In particular, as the panel size is increased and the panel definition is increased, this demand is becoming stronger.

  Various proposals have been made to reduce the relative dielectric constant of the dielectric layer in the front panel. For example, a proposal has been made to form a dielectric layer having a relative dielectric constant ε = 6 to 7 using zinc borate glass containing an alkali metal oxide instead of lead oxide or bismuth oxide (for example, Patent Documents). 1). In addition, a proposal has been made to form a dielectric layer of a front panel using a silicon resin having a siloxane bond with a relative dielectric constant ε = 2.8 to 3.0 (for example, see Patent Document 2).

JP 09-278482 A International Publication No. WO01 / 071761

  The present invention has been made in view of such a current situation, and an object of the present invention is to provide a PDP having low power consumption and high luminous efficiency by reducing the relative dielectric constant ε of the dielectric layer of the front panel.

  In order to achieve the above object, a PDP of the present invention includes a front panel in which a plurality of display electrodes are formed on a substrate and a dielectric layer is formed so as to cover the plurality of display electrodes. A plurality of data electrodes arranged on the substrate in a direction crossing the display electrodes, and having a partition wall for partitioning the discharge space and a rear panel on which a phosphor layer is formed. In the plasma display panel, the dielectric layer of the front panel is made of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less, and has a film thickness of 20 μm. In the following, the dielectric constant ε is configured to be 2 or more and 4 or less, and a discharge gas containing xenon in a volume% of 15% or more and 30% or less is enclosed in the discharge space. Features.

  In addition, the plasma display device has a front panel in which a plurality of display electrodes are formed on a substrate and a dielectric layer is formed so as to cover the plurality of display electrodes, and a discharge space is formed between the front panel and the front panel. A plurality of data electrodes are formed on the substrate and arranged in a direction intersecting with the display electrodes, and a partition panel for partitioning a discharge space and a rear panel on which a phosphor layer is formed, and includes a plurality of discharge cells. The plasma display panel has an address period in which one field is composed of a plurality of subfields and an address discharge for selecting a discharge cell to emit light is generated in each subfield. Light emission is provided with a sustain period for generating a sustain discharge in the discharge cells selected by the address period The dielectric layer of the front panel of the plasma display panel is composed of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less. In addition, the structure is such that the film thickness is 20 μm or less and the relative dielectric constant ε is 2 or more and 4 or less, and a discharge gas containing xenon in a volume% of 15% to 30% is enclosed in the discharge space. And

  According to the present invention, the dielectric layer of the front panel of the PDP is made of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less, and the film thickness is It is configured so that the relative dielectric constant ε is not less than 20 μm and not less than 2 and not more than 4, and the discharge space is filled with discharge gas containing 15% to 30% by volume of xenon. Each of the sub-fields is provided with an address period for generating an address discharge for selecting a discharge cell to emit light and a sustain period for generating a sustain discharge in the discharge cell selected by the address period. Reactive power can be reduced and the power required for sustain discharge can be reduced when performing the light emitting display operation Accordingly, a PDP having low power consumption and high light emission efficiency can be provided.

The perspective view which shows the structure of PDP in embodiment of this invention Sectional drawing which similarly shows the discharge cell structure of PDP Similarly, a schematic diagram showing the fine structure of the dielectric layer of the front panel of the PDP Electrode arrangement of the PDP Block circuit diagram of plasma display device of the present invention Drive voltage waveform diagram of the device The characteristic view for demonstrating the effect in the plasma display apparatus of this invention

  Hereinafter, a PDP according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a structure of a PDP according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a discharge cell structure. In the PDP, a large number of discharge cells are formed between a front panel and a back panel arranged to face each other.

  In the front panel, a plurality of pairs of display electrodes 4 including a pair of scanning electrodes 2 and sustaining electrodes 3 are formed on a glass front substrate 1 in parallel to each other. Scan electrode 2 and sustain electrode 3 are formed in a pattern that repeats in the arrangement of scan electrode 2 -sustain electrode 3 -sustain electrode 3 -scan electrode 2. On the front substrate 1 of the front panel, a plurality of pairs of strip-like display electrodes 4 and black stripes (light-shielding layers) 5 made up of the scanning electrodes 2 and the sustain electrodes 3 are arranged in parallel to each other. A dielectric layer 6 serving as a capacitor is formed on the front substrate 1 so as to cover the display electrodes 4 and the light shielding layer 5, and a protective layer 7 made of magnesium oxide (MgO) is formed on the surface. Has been.

Here, the scan electrode 2 and the sustain electrode 3 are each formed by forming a bus electrode made of Ag on a transparent electrode made of a conductive metal oxide such as ITO, SnO ₂ , or ZnO.

  In the rear panel, a plurality of data electrodes 9 made of a conductive material mainly composed of parallel Ag are formed on a glass rear substrate 8, and a dielectric layer 10 is formed so as to cover the data electrodes 9. In addition, a grid-like partition wall 11 is formed thereon, and phosphor layers 12 of red, green, and blue colors are formed on the surface of the dielectric layer 10 and the side surfaces of the partition wall 11. Yes.

  The front panel and the rear panel are arranged to face each other so that the scan electrode 2 and the sustain electrode 3 and the data electrode 9 are three-dimensionally crossed, and the outer periphery thereof is hermetically sealed with a sealing material made of glass frit or the like. The discharge space 13 inside the sealed PDP is filled with discharge gas such as neon (Ne) and xenon (Xe) at a pressure of 50 kPa to 80 kPa, thereby forming a panel. Here, a discharge cell is formed at a portion where scan electrode 2 and sustain electrode 3 and data electrode 9 face each other. In the present invention, the discharge gas sealed in the discharge space 13 is a discharge gas mixed so that the concentration of xenon is 15% or more and 30% or less in the discharge gas.

  Here, in the present invention, the dielectric layer 6 of the front panel is made of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less. Is 20 μm or less and the relative dielectric constant ε is 2 or more and 4 or less. The particle size of the hollow fine particles is an important factor that determines the light transmittance of the dielectric layer to be formed. In order to secure a transmittance of 75% or more with visible light, the shortest wavelength of visible light is 400 nm or less. In addition, if it is 100 nm or less, which corresponds to a quarter of the shortest wavelength, light scattering between the fine particles is suppressed, and light transmittance can be secured, which is further desirable.

  That is, the display electrode 4 is formed using a dielectric material ink in which silica hollow fine particles having an average particle size of 100 nm or less, for example, a particle size of 10 nm to 120 nm and a relative dielectric constant ε of about 4, are dispersed in an organic solvent or an aqueous solution. And the light shielding layer 5, and then applied to the front substrate 1 by a die coating method or the like so as to cover the display electrode 4 and the light shielding layer 5, and then dried and fired so that the film thickness is 20 μm or less. A dielectric layer 6 having ε of 2 or more and 4 or less is formed. In order to adjust the viscosity, the dielectric material ink may dissolve a polymer material that decomposes in a subsequent process (drying and baking process).

  FIGS. 3A and 3B are diagrams schematically showing the fine structure of the film of the dielectric layer 6 according to the present invention. FIG. 3A shows the particle size of an organic solvent containing a siloxane polymer. FIG. 6 is a schematic view when the dielectric layer 6 is formed using a dielectric material ink in which hollow fine particles having a dielectric constant ε of about 4 are dispersed with a thickness of 40 nm to 120 nm.

  FIG. 3B shows a dielectric in which hollow fine particles having a particle size of 40 nm to 120 nm and a relative dielectric constant ε of about 4 are dispersed in an organic solvent or an aqueous solvent in which a polymer material that is decomposed in a later step is dissolved. It is a schematic diagram at the time of forming the dielectric material layer 6 using body material ink.

In FIGS. 3A and 3B, 6a is a hollow fine particle made of an inorganic oxide, 6b is a mesh made of SiO ₂ , and the former dielectric ink is shown in FIG. 3A. Thus, the fine structure is such that the hollow fine particles 6a are bonded and held by the network 2b of SiO ₂ , and when the latter dielectric ink is used, the fine structure is formed such that the hollow fine particles are directly connected so as to be connected. .

  FIGS. 3C and 3D are schematic cross-sectional views of examples of hollow fine particles constituting the dielectric layer 6, such as a rectangular tube shape (FIG. 3C) and a cylindrical shape (FIG. 3D). ) Has a space 6c inside the hollow fine particles. The relative permittivity of the dielectric layer can be reduced and adjusted depending on the size of the space 6c.

The hollow fine particles 6a are preferably colorless inorganic oxide materials, such as silicon dioxide (SiO ₂ ), aluminum oxide (Al ₂ O ₃ ), zinc oxide (ZnO), gallium oxide (Ga ₂ O ₃ ), and the like. Silicon (SiO ₂ ) is particularly desirable. These inorganic oxides may be composite oxides such as silica alumina depending on the purpose. The hollow fine particles 6a can be synthesized by an organic particle plate method in which the target inorganic oxide is selectively deposited by surface charge around the organic core particles such as polystyrene, and then the core particles such as calcium carbonate are removed. An inorganic particle plate method in which the core particles are dissolved and removed after coating the target inorganic oxide around the substrate is known, but not limited thereto. The space 6c of the hollow fine particles 6a preferably has a space ratio of 40% or more.

  FIG. 4 is an electrode array diagram of the PDP in the embodiment of the present invention. N scanning electrodes Y1, Y2, Y3... Yn (2 in FIG. 1) and n sustaining electrodes X1, X2, X3... Xn (3 in FIG. 1) are arranged in a row direction. M data electrodes A1... Am (9 in FIG. 1) which are long in the direction are arranged. A discharge cell is formed at a portion where the pair of scan electrode Y1 and sustain electrode X1 intersects with one data electrode A1, and m × n discharge cells are formed in the discharge space. Each of these electrodes is connected to a connection terminal provided at a peripheral end portion outside the image display area of the front plate and the back plate.

  FIG. 5 is a circuit block diagram of a plasma display device using this PDP. This plasma display device includes a PDP panel 14 configured as described above, an image signal processing circuit 15, a data electrode drive circuit 16, a scan electrode drive circuit 17, a sustain electrode drive circuit 18, a timing generation circuit 19, and a power supply circuit (not shown). ).

  The image signal processing circuit 15 converts the image signal sig into image data for each subfield. The data electrode drive circuit 16 converts the image data for each subfield into signals corresponding to the data electrodes D1 to Dm, and drives the data electrodes D1 to Dm. The timing generation circuit 19 generates various timing signals based on the horizontal synchronization signal H and the vertical synchronization signal V, and supplies them to each drive circuit block. Scan electrode drive circuit 17 supplies drive voltage waveforms to scan electrodes SC1 to SCn based on timing signals, and sustain electrode drive circuit 18 supplies drive voltage waveforms to sustain electrodes SU1 to SUn based on timing signals.

  Next, a driving voltage waveform for driving the PDP and its operation will be described with reference to FIG. FIG. 6 is a diagram showing drive voltage waveforms applied to the respective electrodes of the PDP.

  In the plasma display device according to the present embodiment, one field is constituted by a plurality of subfields, and each subfield emits light after an initialization period in which an initializing discharge is generated in the discharge cell, and after the initializing period. An address period for generating an address discharge for selecting a discharge cell to be generated, and a sustain period for generating a sustain discharge in the discharge cell selected by the address period.

  In the initializing period of the first subfield, the data electrodes D1 to Dm and the sustain electrodes SU1 to SUn are held at 0 (V), and from the voltage Vi1 (V) that is lower than the discharge start voltage with respect to the scan electrodes SC1 to SCn. A ramp voltage that gradually increases toward the voltage Vi2 (V) exceeding the discharge start voltage is applied. Then, the first weak initializing discharge is caused in all the discharge cells, negative wall voltages are stored on scan electrodes SC1 to SCn, and positive walls on sustain electrodes SU1 to SUn and data electrodes D1 to Dm. The voltage is stored. Here, the wall voltage on the electrode refers to a voltage generated by wall charges accumulated on the dielectric layer or the phosphor layer covering the electrode.

  Thereafter, sustain electrodes SU1 to SUn are maintained at positive voltages Ve1 and Ve2 (V), and a ramp voltage that gradually decreases from voltage Vi3 (V) to voltage Vi4 (V) is applied to scan electrodes SC1 to SCn. Then, the second weak initializing discharge is caused in all the discharge cells, the wall voltage between scan electrodes SC1 to SCn and sustain electrodes SU1 to SUn is weakened, and the wall voltage on data electrodes D1 to Dm is reduced. Is also adjusted to a value suitable for the write operation.

  In the subsequent address period, scan electrodes SC1 to SCn are temporarily held at Vc (V). Next, negative scan pulse voltage Va (V) is applied to scan electrode SC1 in the first row, and data electrode Dk (k = 1 to 1) of the discharge cell to be displayed in the first row among data electrodes D1 to Dm. A positive write pulse voltage Vd (V) is applied to m). At this time, the voltage at the intersection between the data electrode Dk and the scan electrode SC1 is obtained by adding the wall voltage on the data electrode Dk and the wall voltage on the scan electrode SC1 to the externally applied voltage (Vd−Va) (V). And the discharge start voltage is exceeded. Then, an address discharge occurs between data electrode Dk and scan electrode SC1 and between sustain electrode SU1 and scan electrode SC1, and a positive wall voltage is accumulated on scan electrode SC1 of this discharge cell, and on sustain electrode SU1. And a negative wall voltage is also accumulated on the data electrode Dk.

  In this manner, an address operation is performed in which address discharge is caused in the discharge cells to be displayed in the first row and wall voltage is accumulated on each electrode. On the other hand, the voltage at the intersection of the data electrodes D1 to Dm and the scan electrode SC1 to which the address pulse voltage Vd (V) is not applied does not exceed the discharge start voltage, so that address discharge does not occur. The above address operation is sequentially performed until the discharge cell in the nth row, and the address period ends.

  In the subsequent sustain period, positive sustain pulse voltage Vs (V) is applied to scan electrodes SC1 to SCn as a first voltage, and ground potential, that is, 0 (V) is applied to sustain electrodes SU1 to SUn as a second voltage. Apply. In the discharge cell that has caused the address discharge at this time, the voltage between scan electrode SCi (i = 1 to n) and sustain electrode SUi is the sustain pulse voltage Vs (V) and the wall voltage on scan electrode SCi. This is a sum of the wall voltage on the sustain electrode SUi and exceeds the discharge start voltage. Then, a sustain discharge occurs between scan electrode SCi and sustain electrode SUi, and the phosphor layer emits light due to the ultraviolet rays generated at this time. Then, a negative wall voltage is accumulated on scan electrode SCi, and a positive wall voltage is accumulated on sustain electrode SUi. At this time, a positive wall voltage is also accumulated on the data electrode Dk.

  In the discharge cells in which no address discharge has occurred in the address period, no sustain discharge occurs, and the wall voltage at the end of the initialization period is maintained. Subsequently, 0 (V) that is the second voltage is applied to scan electrodes SC1 to SCn, and sustain pulse voltage Vs (V) that is the first voltage is applied to sustain electrodes SU1 to SUn. Then, in the discharge cell in which the sustain discharge has occurred, the voltage between the sustain electrode SUi and the scan electrode SCi exceeds the discharge start voltage, so that the sustain discharge occurs again between the sustain electrode SUi and the scan electrode SCi, Negative wall voltage is accumulated on sustain electrode SUi, and positive wall voltage is accumulated on scan electrode SCi.

  Thereafter, similarly, by applying sustain pulses of the number corresponding to the luminance weight alternately to scan electrodes SC1 to SCn and sustain electrodes SU1 to SUn, the sustain discharge continues in the discharge cells that have caused the address discharge in the address period. Done. Thus, the maintenance operation in the maintenance period is completed.

  The operations in the initialization period, the writing period, and the sustain period after the subsequent second subfield are substantially the same as the operations in the first subfield, and thus description thereof is omitted. In the present embodiment, in subfields after the second subfield, sustain electrodes SU1 to SUn are maintained at positive voltages Ve1 and Ve2 (V), and scan electrodes SC1 to SCn are supplied with voltage Vi3 (V). By applying a ramp voltage that gradually falls toward the voltage Vi4 (V), a weak initializing discharge is driven only in the discharge cells in which the sustain discharge has occurred in the previous subfield. That is, in the first subfield, an all-cell initializing operation for generating an initializing discharge in all discharge cells is performed, and in the second and subsequent subfields, only the discharge cells that have caused a sustain discharge in the previous subfield are performed. An operation for selectively generating an initializing discharge is performed. The all-cell initializing operation and the selective initializing operation are different from the first subfield and the other subfields as in the present embodiment, and the all-cell initializing operation is the same as the first subfield. It may be performed in the initialization period in subfields other than the field, or may be performed once every several fields.

  The operation in the address period and the sustain period is the same driving method as that in the first subfield described above, but the number of sustain pulses corresponding to the luminance weighting is applied for light emission by the sustain discharge in the sustain period. Thus, driving is performed so as to control the luminance weight for each subfield.

  Next, specific examples of the present invention will be described in more detail.

Example 1
A dielectric material containing hollow silica fine particles having a particle size of 40 nm to 120 nm and an average particle size of 100 nm or less and having a shape as shown in FIG. 3C, having a film thickness of about 15 μm and a dielectric constant ε of 3.0 A body layer was formed and produced using a discharge gas in which xenon (Xe) was mixed at a ratio of 15% by volume.

(Example 2)
It was produced in the same manner as Example 1 except that a discharge gas in which xenon (Xe) was mixed at a volume percentage of 30% was used.

(Comparative example)
Silicon dioxide (SiO ₂ ), boron oxide (B ₂ O ₃ ), zinc oxide (ZnO), bismuth oxide (Bi ₂ O ₃ ), calcium oxide (CaO), strontium oxide (SrO), barium oxide (BaO), oxidation Using a dielectric material containing molybdenum (MoO ₃ ), tungsten oxide (WO ₃ ), cerium oxide (CeO ₂ ), manganese dioxide (MnO ₂ ), etc., having a film thickness of about 40 μm and a relative dielectric constant ε of 11.3 While forming a dielectric layer, it produced using the discharge gas which mixed xenon (Xe) by the ratio of 10% of the volume%.

  In order to confirm the effects of the PDPs and plasma display devices of Examples 1 and 2 and the comparative example manufactured as described above, when driving light is emitted by the above-described driving method, the driving voltage at that time and the discharge operation are FIG. 7 shows the result of comparing the contributing discharge power and reactive power.

  As can be seen from FIG. 7, the PDP of Example 1 can reduce the drive voltage by about 20 V compared to the comparative example, and the power can also be reduced by about 80 W including reactive power. In Example 2, the driving voltage is about the same as that of the comparative example, but the power can be reduced by about 120 W including reactive power, and both can reduce the power compared to the comparative example. .

  As described above, according to the present invention, the dielectric layer of the PDP front panel is made of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less. The discharge space containing xenon at 15% or more and 30% or less by volume% is configured so that the film thickness is 20 μm or less and the relative dielectric constant ε is 2 or more and 4 or less. The field is composed of a plurality of subfields, and in each subfield, an address period for generating an address discharge for selecting a discharge cell to emit light, and a sustain period for generating a sustain discharge in the discharge cell selected by the address period Can be used to reduce reactive power when performing PDP light emission display operation, and is necessary for sustain discharge Power can be reduced, whereby high light emission efficiency can be realized with low power consumption.

  The plasma display panel and the plasma display device of the present invention are useful for realizing high luminous efficiency with low power consumption. The dielectric layer used in the present invention can also be applied to applications that require light transmission, low dielectric constant, and low refractive index.

DESCRIPTION OF SYMBOLS 1 Front substrate 2 Scan electrode 3 Sustain electrode 4 Display electrode 6 Dielectric layer 6a Hollow fine particle 8 Back substrate 9 Data electrode 11 Partition 12 Phosphor layer 13 Discharge space 14 Panel 16 Data electrode drive circuit 17 Scan electrode drive circuit 18 Sustain electrode drive circuit

Claims (4)

A front panel in which a plurality of display electrodes are formed on a substrate and a dielectric layer is formed so as to cover the plurality of display electrodes, and a discharge space is formed between the front panels and disposed opposite to each other and displayed on the substrate A plasma display panel having a plurality of data electrodes arranged in a direction intersecting with the electrodes and partition walls for partitioning a discharge space and a rear panel on which a phosphor layer is formed, wherein the dielectric layer of the front panel includes: A dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less, and a relative dielectric constant ε of 2 to 4 with a film thickness of 20 μm or less. A plasma display panel comprising a discharge gas containing xenon in a volume of 15% to 30% in a discharge space. The plasma display panel according to claim 1, wherein the hollow fine particles are silica fine particles, and are spherical and polyhedral. A front panel in which a plurality of display electrodes are formed on a substrate and a dielectric layer is formed so as to cover the plurality of display electrodes, and a discharge space is formed between the front panels and disposed opposite to each other and displayed on the substrate A plasma display panel having a plurality of discharge cells, which includes a plurality of data electrodes arranged in a direction intersecting with the electrodes, a partition that partitions a discharge space, and a rear panel on which a phosphor layer is formed. The plasma display panel is composed of a plurality of subfields, and an address period for generating an address discharge for selecting a discharge cell to emit light in each subfield, and a discharge selected by the address period. Plasma display apparatus for performing light emission display by providing sustain period for generating sustain discharge in cell The dielectric layer of the front panel of the plasma display panel is made of a dielectric material including hollow fine particles made of an inorganic oxide having an average particle size of 100 nm or less and a maximum particle size of 400 nm or less, and a film thickness of 20 μm. A plasma display device characterized in that a relative dielectric constant ε is 2 or more and 4 or less, and a discharge gas containing xenon in a volume% of 15% or more and 30% or less is sealed in the discharge space. The plasma display device according to claim 3, wherein the hollow fine particles are silica fine particles, and are spherical and polyhedral.

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