JP2009211862A - Gas discharge panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas discharge panel which is not changed with time in operation voltage and ensures high stability of operation with a long lifetime. <P>SOLUTION: In the gas discharge panel 100 which has a display surface side substrate 101 and a rear surface side substrate 106 which are opposed mutually via a discharge space 111 and has at least a data electrode 107, fluorescent material layers 110R, 110G and 110B that excitatively emit light by ultraviolet light, and a barrier rib 109 on the rear surface side substrate 106, the gas discharge panel is characterized in that photocatalyst material fine particles 120 having at least a particle diameter of not more than 1 μm are arranged on the fluorescent material layers 110R, 110G and 110B in a discharge cell constituted of the display surface side substrate 101, the rear surface side substrate 106 and the barrier rib 109. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a gas discharge panel having a phosphor layer that is used for image display of a television or the like and is excited by vacuum ultraviolet rays to emit light, and more particularly to a plasma display panel (hereinafter referred to as PDP).

  In recent years, in color display devices used for image display such as computers and televisions, plasma display devices using PDPs have attracted attention as color display devices that can be large, thin, and lightweight. The PDP is a display that displays an image by exciting and emitting phosphors with ultraviolet rays generated by gas discharge.

FIG. 6 schematically shows a basic configuration of a discharge cell of a conventional reflective AC surface discharge PDP in a perspective sectional view. On the display surface side substrate 101 made of a glass plate, transparent electrodes 102X and 102Y made of ITO or SnO ₂ are formed in pairs. However, since the transparent electrodes 102X and 102Y have high sheet resistance and cannot supply sufficient power to all pixels in a large panel, a thick silver film, an aluminum thin film, or chromium / Bus electrodes 103X and 103Y made of a laminated thin film of copper / chromium (Cr / Cu / Cr) are formed. The bus electrodes 103X and 103Y apparently reduce the sheet resistance of the transparent electrodes 102X and 102Y. The transparent electrodes 102X and 102Y and the bus electrodes 103X and 103Y constitute a display electrode.

  A dielectric layer (low melting glass is used) 104 is formed so as to cover these electrodes, and a protective layer 105 made of magnesium oxide (MgO) is formed so as to cover this dielectric layer 104. Yes.

  The dielectric layer 104 has a current limiting function peculiar to the AC type PDP, and is a factor that can extend the life compared to the DC type. The protective layer 105 is provided to protect the dielectric layer 104 from being sputtered and removed by electric discharge. The protective layer 105 is excellent in spatter resistance and has a high secondary electron emission coefficient (γ) and has a discharge start voltage. Reduction work is required.

  Further, a back side substrate 106 made of a glass plate is also provided facing the display surface side substrate 101. A data electrode 107 for writing image data, a base dielectric layer 108, a partition wall 109, and a phosphor layer 110 are formed on the back substrate 106.

  The PDP performs full color display by additively mixing so-called three primary colors (red, green, and blue). In order to perform this full-color display, the PDP is provided with a phosphor layer 110 that emits each of the three primary colors red (R), green (G), and blue (B), and constitutes the phosphor layer 110. The phosphor material is excited by ultraviolet rays generated in the discharge cell of the PDP, and generates visible light of each color. In the formation process of the phosphor layer 110 on the back side substrate 106, after forming the barrier rib 109, phosphor pastes of red (R), green (G), and blue (B) are applied and formed by screen printing or a line jet method. After that, it is fired in the air to remove the solvent component in the paste.

  A glass frit for sealing (not shown) is applied around one or both of the display surface side substrate 101 and the back side substrate 106 configured as described above, and the resin component in the frit is removed. In order to remove, calcined at 300 ° C to 350 ° C, and after superimposing both substrates, heated to a high temperature (450 ° C to 550 ° C) to soften the sealing glass and bond the two substrates together (sealing process) . Here, the data electrode 107 and the barrier rib 109 are arranged so as to intersect with the display electrode, and the discharge cell 111 has a space surrounded by the two barrier ribs 109, the display surface side substrate 101, and the back side substrate 106. Is formed.

  At this time, the barrier rib 109 serves to partition adjacent discharge cells and prevent erroneous discharge and optical crosstalk. An AC voltage of several tens of kHz to several hundreds of kHz is applied to the display electrode of this PDP to generate a discharge in the discharge cell 111, and the phosphor is excited by vacuum ultraviolet rays (wavelengths: 147 nm, 173 nm) from excited Xe atoms. The display operation is performed by exciting the layer 110 and generating visible light.

  Here, the PDP has a problem that the operating voltage increases with time. This is because a hydrocarbon gas (hereinafter referred to as a CH gas) is adsorbed on the phosphor as an impure gas, and the CH gas is released into the discharge space by vacuum ultraviolet rays or ion bombardment generated by the discharge. This is a phenomenon that occurs because the secondary electron emission coefficient on the MgO surface is reduced by being adsorbed on the protective layer 105.

Therefore, conventionally, in order to suppress an increase in operating voltage due to the CH-based gas, there has been a technique in which a photocatalytic substance layer and an oxide layer are disposed in a discharge cell formed by a display surface side substrate, a back side substrate, and a partition wall. It has been proposed (see, for example, Patent Document 1).
JP 2004-327114 A

The method of disposing a photocatalyst material layer on the partition wall surface in the discharge cell is that the CH gas is adsorbed on the MgO surface by irradiating the photocatalyst material layer with ultraviolet rays generated by the discharge in the cell, and the operating voltage greatly fluctuates. It is intended to decompose into CO ₂ or H ₂ O which does not lead to the production of CO ₂ . Examples of the photocatalyst material layer include a layer formed of titanium oxide, and the stability of the operating voltage is guaranteed to some extent by the photocatalytic action due to the disposition of titanium oxide.

However, on the other hand, since the titanium oxide H ₂ O and once adsorbed in the panel by super hydrophilicity, H ₂ O by exposure to the discharge from being emitted into the reversibly discharge cells, fixed display Amplifying the difference between the discharge start voltage of the display and non-display areas more than before, causing a difference in brightness when all the lights are on, and also acting in a disadvantageous way on the recovery of the afterimage and burn-in phenomenon over time of the fixed display area There was a case where the problem of doing occurred.

  The present invention has been made in order to solve the above-described problems, and its object is to provide a gas discharge panel capable of displaying a good image with a rise in operating voltage over time and an afterimage / burn-in phenomenon reduced. Is to provide.

  In order to achieve the above object, the gas discharge panel of the present invention has a display surface side substrate and a back side substrate facing each other through a discharge space, and at least a data electrode and a phosphor layer excited and emitted by ultraviolet rays on the back plate. In the gas discharge panel in which the barrier ribs and the barrier ribs are formed, the photocatalytic substance fine particles having a particle diameter of 1 μm or less are formed on the phosphor layer in the discharge cell formed by the display surface side substrate, the back side substrate and the barrier ribs. It is characterized by being arranged.

By irradiating fine particles of the photocatalyst with ultraviolet rays generated by the discharge in the cell, the CH-based gas is decomposed into CO ₂ or H ₂ O which is adsorbed on the MgO surface and does not cause a large fluctuation in operating voltage. It is possible to realize a stable gas discharge panel with no increase in operating voltage. In addition, since it is a fine particle smaller than the particle size of the phosphor, it can be disposed on the phosphor surface with minimal luminance reduction due to shielding of the phosphor layer, and more effectively than before, The effect can be obtained with a small amount of arrangement. Since it is a small amount of arrangement, even if it is a super hydrophilic material such as titanium oxide, the amount of adsorption of H ₂ O is small, so it adversely affects image sticking and afterimage reduction. There is nothing. The gas discharge panel according to the present invention is such that oxide fine particles are formed together with photocatalyst fine particles, thereby increasing the amount of hydroxy radicals (OH) generated by UV irradiation and further promoting the decomposition of CH-based gas. It is.

  According to the present invention, it is possible to realize a gas discharge panel capable of good image display in which an increase in operating voltage over time and an afterimage / burn-in phenomenon are reduced.

  Hereinafter, a gas discharge panel according to an embodiment of the present invention will be described with reference to the drawings. In the following description, a PDP that is a typical example of a gas discharge panel will be described as an example.

(Embodiment 1)
FIG. 1 is a perspective sectional view schematically showing a configuration of a PDP according to an embodiment of the present invention. 2 is a cross-sectional view taken along the line AA ′ in FIG. 1 and is a cross-sectional view showing a schematic configuration of a PDP according to an embodiment of the present invention. In FIG. 1 and FIG. 2, the same components as those shown in FIG.

1 and 2, transparent electrodes 102X and 102Y made of a transparent conductive material such as ITO or tin oxide (SnO ₂ ) are formed on a display surface side substrate 101 made of a glass plate, and silver (Ag) is formed thereon. Bus electrodes 103X and 103Y made of a thick film (thickness: 2 μm to 10 μm), an aluminum (Al) thin film (thickness: 0.1 μm to 1 μm) or a Cr / Cu / Cr laminated thin film (thickness: 0.1 μm to 1 μm) are formed. is doing.

For example, lead oxide (PbO) 70% by weight, boron oxide (B ₂ O ₃ ) 15% by weight, silicon oxide (SiO ₂ ) 15% by weight so as to cover these transparent electrodes 102X, 102Y and bus electrodes 103X, 103Y. A dielectric layer 104 made of low melting point glass (thickness 20 μm to 40 μm) having the following composition is formed by screen printing, die coat printing, or film laminating.

  Subsequently, a protective layer 105 (thickness: 0.3 μm to 1 μm) made of MgO for protecting the dielectric layer 104 from damage due to discharge plasma is formed by an electron beam evaporation method, a sputtering method, or a chemical vapor deposition method (CVD method). Is formed.

  Here, two transparent electrodes 102X and 102Y and bus electrodes 103X and 103Y arranged in parallel with each other at a predetermined interval constitute a display electrode of one pixel (pixel: PU), and an AC voltage is applied between them. Thus, a discharge is generated in the discharge space 111.

  On the other hand, a back substrate 106 facing the display surface substrate 101 through a discharge space 111 is provided. The back substrate 106 is made of a glass plate, on which a silver (Ag) thick film (thickness: 2 μm to 10 μm), an aluminum (Al) thin film (thickness: 0.1 μm to 1 μm), or a Cr / Cu / Cr laminated thin film ( A data electrode 107 having a thickness of 0.1 μm to 1 μm is formed, and a base dielectric layer 108 (thickness: 5 μm to 20 μm) made of low-melting glass is formed so as to cover the data electrode 107.

  Further, for example, partition walls 109 (height 0.1 mm to 0.15 mm) are formed at predetermined intervals by repeating screen printing of low melting point glass and baking.

  Further, phosphor layers 110R, 110G, and 110B of three primary colors (red: R, green: G, blue: B) for color display are sequentially stacked. Further, on the phosphor layers 110R, 110G, and 110B, the photocatalyst fine particles 120 having an average particle diameter of 5 nm to 1000 nm are more than 0% and less than 5% with respect to the surface areas of the phosphor layers 110R, 110G, and 110B. It is arrange | positioned with the coverage of. In addition to the photocatalytic substance fine particles 120, the oxide fine particles 121 are also disposed on the phosphor layers 110R, 110G, and 110B with a coverage of more than 0% and 5% or less with respect to the surface area of the phosphor layers 110R, 110G, and 110B. It is installed.

  The display surface side substrate 101 and the back surface side substrate 106 are bonded so that the display electrodes and the data electrodes 107 intersect with each other, and the display electrodes in the discharge space 111 partitioned by the partition walls 109 in the line direction for each subpixel SU. A discharge cell is formed at a portion where the data electrode 107 intersects.

  Here, by arranging the heights of the barrier ribs 109, the gap dimension of the discharge space 111 takes a predetermined constant value. One pixel (pixel: PU) is composed of three sub-pixels SU that emit light in red (R), green (G), and blue (B) colors side by side in the line direction.

  After the display surface side substrate 101 and the back side substrate 106 are opposed to each other as described above, the periphery is hermetically sealed, and the discharge space 111 is evacuated while being heated, and then, for example, a discharge gas composed of a mixed gas of Ne and Xe At a predetermined pressure and mixing ratio. Further, by applying a voltage pulse of 300V to 500V to the display electrode to generate a discharge in the discharge space 111, the PDP 100 is completed by performing aging for 8 hours to 16 hours to lower and stabilize the discharge start voltage. To do.

  Next, effects of the PDP 100 having the above-described configuration according to the embodiment of the present invention will be described. For comparison, the photocatalyst substance fine particles 120 and the oxide fine particles 121 are not provided, and other components are exactly the same as those of the PDP 100, and a comparative PDP (A) as shown in a cross-sectional perspective view in FIG. A comparative PDP (B) provided with a photocatalytic substance layer and an oxide layer as shown in Patent Document 1 was produced. And about PDP100, PDP (A), and PDP (B), the accelerated life test equivalent to 50,000 hours by normal use was done.

  As a result, the PDP 100 and PDP (B) confirmed that the discharge start voltage fluctuated to such an extent that there was almost no problem in operation, and it was possible to operate very stably during this period. On the other hand, in the case of the comparative PDP (A), the discharge start voltage was several volts higher than that of the PDP 100 even before the life test, but the discharge start voltage at the lighting section increased by 20 V or more over time even during the life test. In an accelerated life test corresponding to 10,000 hours in normal use, it was confirmed that a non-lighted area was generated in a part of PDP (A).

  After the life test, these PDPs were decomposed and subjected to traveling type secondary ion mass spectrometry (TOF-SIMS) on the surface of the protective layer 105. As a result, PDP (A) adsorbs CH gas compared to PDP100. The amount was found to be large.

  Moreover, when a part of the display surface side substrate 101 and the back side substrate 106 were cut out and temperature-programmed desorption mass spectrometry (TDS) was performed on each of them, as in the result of TOF-SIMS, PDP ( It was found that the amount of adsorption of the CH gas of A) was large. Further, when the TOF-SIMS analysis was similarly performed on the surface of the protective layer 105 before and after aging, the amount of adsorption of the CH-based gas was larger in the PDP (A) than in the PDP 100, although not as much as after the life test. found.

Next, for PDP 100 and PDP (B), the recovery time for the afterimage / burn-in of the fixed display pattern was measured. As a result, the recovery time for PDP (B) was longer, and there was a case where it did not recover even for the burn-in. It was. Therefore, for comparison between PDP 100 and PDP (B), a fixed display accelerated life test is performed, and a part of the display surface side substrate and the back side substrate are cut out for the fixed display portion and the non-lighting portion adjacent thereto, Thermal desorption mass spectrometry (TDS) was performed. As a result, it was found that in the non-lighting portion, the adsorption amount of H ₂ O was larger in PDP (B) than in PDP 100. In addition, in the fixed display portion, it was found that the amount of adsorption of H ₂ O was smaller in PDP (B) than in PDP 100. Further, the amount of adsorption of H ₂ O between the fixed display portion and the non-lighting portion of the PDP 100 is almost the same, but there is a difference in the amount of adsorption of H ₂ O between the fixed display portion and the non-lighting portion of the PDP (B). It was found that there were more non-lighted parts.

  Here, in the PDP 100 according to the embodiment of the present invention in which the photocatalyst substance fine particles 120 and the oxide fine particles 121 are disposed on the phosphor layers 110R, 110G, and 110B, the reason why the discharge start voltage is stable and has a long life. Is considered as follows.

  First, in the PDP 100, the CH-based gas is mainly adsorbed and taken in by the phosphor layers 110R, 110G, and 110B. When the PDP 100 is operated, the adsorbed CH-based gas is desorbed due to ultraviolet irradiation or ion collision on the surface of the phosphor layers 110R, 110G, and 110B due to discharge in the discharge cell, and the protective layer 105 made of MgO is removed. Adsorb to the surface. Therefore, the secondary electron emission coefficient (γ) value decreases, and as a result, the discharge start voltage increases. The fact that the discharge start voltage of PDP (A) is larger than PDP100 after aging and that the discharge start voltage has increased in the life test of PDP (A) seems to be due to CH gas from the results of TOF-SIMS and TDS. It is.

However, in the PDP 100 according to the embodiment of the present invention in which the photocatalyst material fine particles 120 are formed, the CH-based gas changes to CO ₂ or H ₂ O which does not significantly affect the discharge start voltage due to the catalytic action of the photocatalyst material layer 120. It is considered that the fluctuation of the discharge start voltage is smaller than that of PDP (A). In addition, it is clear from the analysis of TOF-SIMS and TDS that the amount of CH gas is small.

The decomposition of the CH gas by the photocatalyst fine particles 120 will be described in more detail. When the surface of the photocatalytic substance fine particle 120, which is a semiconductor, is irradiated with ultraviolet rays generated by the discharge in the discharge cell, electrons are excited by the conductor and electron / hole pairs are generated. In this case, the oxide particles 121 adjacent to the photocatalytic material particles 120 above is formed, holes move easily to the oxide particles 121, are adsorbed to the oxide particles 121 surface H ₂ O To generate hydroxy radicals (OH). This hydroxy radical (OH) undergoes an oxidation reaction with the CH-based gas existing on the surface of the oxide fine particles 121 and in the vicinity thereof, and is decomposed into CO ₂ and H ₂ O.

As described above, the PDP 100 according to the embodiment of the present invention discharges the CH-based gas that gradually emerges from the surface of the phosphor layers 110R, 110G, and 110B by the ultraviolet rays and the photocatalytic substance fine particles generated by the operation. Since it can be decomposed into CO ₂ or H ₂ O gas that hardly raises the starting voltage, stable operation becomes possible.

Here, examples of usable oxide fine particles 121 include SiO ₂ , V ₂ O ₅ , MoO ₃ , Ta ₂ O ₅ , Nb ₂ O ₃ , TiO ₂ , SnO ₂ , GeO ₂ , Fe ₂ O ₃ , B ₂ O ₃ , As ₂ O ₃ , MgO, ZnO, PbO, Eu ₂ O ₃ , Nd ₂ O ₃ , TmO ₃ , Dy ₂ O ₃ , Y ₂ O ₃ , La ₂ O ₃ , Al ₂ O ₃ , Tl ₂ O ₃ , In ₂ O ₃ , Bi ₂ O ₃ , HfO ₂ , CoO, CuO, NiO, Ga ₂ O ₃ , MnO ₂ , CeO ₂ , Cr ₂ O ₃ , MgAlO ₄ , K ₂ O.Al ₂ O _{3. 6SiO 2, Na 2 O · Al} 2 O 3 · 6SiO 2, CaO · Al 2 O 3 · 6SiO 2, can include at least one selected from among Sc ₂ O _3. In particular, when these materials are amorphous, oxygen atoms are relatively difficult to appear on the surface, and the H ₂ O adsorptivity is further increased, which is more preferable. In the case of amorphous, the layer may be out of the quantum composition or may contain hydrogen atoms or halogen (F, Cl, Br, I) atoms in the layer.

  The photocatalytic material constituting the photocatalytic substance fine particles 120 includes at least one selected from titanium oxide, tin oxide, zinc oxide, dibismuth trioxide, tungsten trioxide, ferric oxide, and strontium titanate. be able to.

(Embodiment 2)
FIG. 3 is a cross-sectional view showing a schematic configuration of a PDP according to an embodiment of the present invention. PDP 200 is different from PDP 100 (FIGS. 1 and 2) shown in Embodiment 1 in that it does not have oxide fine particles 121 (FIGS. 1 and 2). In addition, the same code | symbol is attached | subjected about the thing similar to the structure of PDP100 shown in FIG. 1, FIG.

  When this PDP 200 was subjected to the same accelerated life test as that of the first embodiment, it was confirmed that the PDP 200 was operated stably with little change in the discharge start voltage as in the PDP 100. This is presumably because the photocatalytic reaction proceeds even in the absence of oxide fine particles and the decomposition of the CH gas is promoted.

(Embodiment 3)
FIG. 4 is a cross-sectional view showing a schematic configuration of a PDP according to an embodiment of the present invention. Compared with the PDP 100 (FIGS. 1 and 2) shown in the first embodiment, the PDP 300 is not only on the phosphor layers 110R, 110G, and 110B of three primary colors (red: R, green: G, blue: B). The photocatalyst fine particles 120 having an average particle diameter of 5 nm to 1000 nm are also dispersed. Furthermore, oxide fine particles 121 are also dispersed together with the photocatalytic substance fine particles 120. In addition, the same code | symbol is attached | subjected about the thing similar to the structure of PDP100 shown in FIG. 1, FIG.

  When this PDP 300 was subjected to the same accelerated life test as in the first embodiment, it was confirmed that the PDP 300 was stable in operation with little change in the discharge start voltage as in the PDP 100. This result is considered to be the same reason as the consideration shown in the first embodiment.

(Embodiment 4)
FIG. 5 is a cross-sectional view showing a schematic configuration of a PDP according to an embodiment of the present invention. PDP 400 is different from PDP 300 (FIG. 4) shown in Embodiment 3 in that it does not have oxide fine particles 121 (FIG. 4). In addition, the same code | symbol is attached | subjected about the thing similar to the structure of PDP300 shown in FIG.

  When this PDP 400 was subjected to the same accelerated life test as in the first embodiment, it was confirmed that, as with the PDP 100, the discharge start voltage change was small and the operation was stable. This result is considered to be the same reason as the consideration shown in the second embodiment.

In the first to fourth embodiments described above, as the discharge gas, a mixed gas of He—Xe may be used in addition to a mixed gas of Ne—Xe, and Ar, Kr, or He is further added to these gases. May be added. In addition, for these discharge gases, oxygen, NO, NO ₂ , N ₂ O, N ₂ O ₃ , N ₂ O ₄ , N ₂ O ₅ , NO _{3 and} other gases containing oxygen atoms in the molecule are used for PDP operation. Mixing to such an extent that there is no influence (specifically, 0.1 vppm to 10 vppm) is effective because hydroxy radicals (OH) are generated by the photocatalytic action of the photocatalytic substance layer and the decomposition of the CH-based gas can be further promoted. .

  As described above, the present invention is useful for providing a large-screen, high-definition PDP.

1 is a perspective sectional view showing a schematic configuration of a plasma display panel according to an embodiment of the present invention. Sectional drawing which shows schematic structure of the plasma display panel by one embodiment of this invention Similarly, sectional drawing which shows schematic structure of the plasma display panel by one embodiment of this invention Similarly, sectional drawing which shows schematic structure of the plasma display panel by one embodiment of this invention Similarly, sectional drawing which shows schematic structure of the plasma display panel by one embodiment of this invention Sectional perspective view showing a schematic configuration of a conventional plasma display panel

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Plasma display panel 101 Display surface side board | substrate 102X, 102Y Transparent electrode 103X, 103Y Bus electrode 104 Dielectric layer 105 Protection layer 106 Back side board | substrate 107 Data electrode 108 Base dielectric layer 109 Partition 110R Phosphor layer (red)
110G phosphor layer (green)
110B phosphor layer (blue)
111 Discharge space 120 Photocatalytic substance fine particles 121 Oxide fine particles

Claims (7)

In a gas discharge panel having a display surface side substrate and a back side substrate facing each other through a discharge space, and at least a data electrode, a phosphor layer excited and emitted by ultraviolet rays, and a partition are formed on the back side substrate, A gas discharge panel, wherein photocatalyst fine particles having a particle size of 1 μm or less are disposed on a phosphor layer in a discharge cell formed by the display surface side substrate, the back side substrate and the barrier ribs. . In a gas discharge panel having a display surface side substrate and a back side substrate facing each other through a discharge space, and at least a data electrode, a phosphor layer excited and emitted by ultraviolet rays, and a partition are formed on the back side substrate, A gas discharge panel in which fine particles of a photocatalytic substance having a particle size of 1 μm or less are dispersed in a phosphor layer in a discharge cell formed by the display surface side substrate, the back side substrate, and the barrier ribs. . 2. The gas discharge panel according to claim 1, wherein at least oxide fine particles having a particle diameter of 1 μm or less are disposed on the phosphor layer together with the photocatalytic substance fine particles. The gas discharge panel according to claim 2, wherein at least oxide fine particles having a particle size of 1 µm or less are dispersed in the phosphor layer together with the photocatalytic substance fine particles. The photocatalytic substance fine particles are at least one selected from titanium oxide, tin oxide, zinc oxide, dibismuth trioxide, tungsten trioxide, ferric oxide, and strontium titanate. The gas discharge panel according to claim 4. Oxide fine _{particles, SiO 2, V 2 O 5} , MoO 3, Ta 2 O 5, Nb 2 O 3, TiO 2, SnO 2, GeO 2, Fe 2 O 3, B 2 O 3, As 2 O 3, MgO, ZnO, PbO, Eu ₂ O ₃ , Nd ₂ O ₃ , TmO ₃ , Dy ₂ O ₃ , Y ₂ O ₃ , La ₂ O ₃ , Al ₂ O ₃ , Tl ₂ O ₃ , In ₂ O ₃ , Bi _{2 O 3, HfO 2, CoO} , CuO, NiO, Ga 2 O 3, MnO 2, CeO 2, Cr 2 O 3, MgAlO 4, K 2 O · Al 2 O 3 · 6SiO 2, Na 2 O · Al 2 _{O 3 · 6SiO 2, CaO ·} Al 2 O 3 · 6SiO 2, Sc 2 O 3 gas discharge panel according to claim 3 or 4, characterized in that at least one selected from among. The gas discharge panel according to any one of claims 1 to 6, wherein a gas containing oxygen atoms in a molecule is mixed with a discharge gas filled in the discharge space.

Images