Plasma display panel and plasma display panel device with reduced driving voltage
View Patent ↗In a panel unit 10 , a discharge gas is filled into a discharge space 13 . A protective layer 114 is provided in a partial region (a front panel 11 side) facing the inner space 13 , and a phosphor layer 124 is provided in a counter region (a back panel 12 side) which holds the discharge space 13 . The discharge gas is set at a total pressure of not less than 1.50×10 4 [Pa] and not more than 6.66×10 4 [Pa], and comprises an Xe gas as a first gas component and an Ar gas as a second gas component and is free from an Ne gas, provided that the Ne gas may be contained in the discharge gas at a partial pressure ratio of not more than 0.5[%] based on the total pressure.
1. A plasma display panel comprising a hermetically sealed container containing discharge gas in an inner space therein, the hermetically sealed container including a protective layer and a phosphor layer opposing each other across the space, wherein the discharge gas contains:
a first gas component composed of a rare gas element which emits light to excite a phosphor in the phosphor layer during a plasma discharge;
a second gas component composed of an argon gas; and
a neon gas at a partial pressure ratio in a range of 0% to 0.5%, inclusive, to a total pressure of the discharge gas, and wherein
the second gas component is contained at a partial pressure ratio in a range of 1% to 25%, inclusive, to the total pressure of the discharge gas, and
the total pressure of the discharge gas in the space is from 1.50×10 4 Pa to 6.66×10 4 Pa, inclusive.
2. The plasma display panel of claim 1 , wherein
the first gas component is one of a xenon gas and a krypton gas.
3. The plasma display panel of claim 1 , wherein
the total pressure of the discharge gas is 5.00×10 4 Pa or less.
4. The plasma display panel of claim 1 , wherein
the second gas component is contained at a partial pressure ratio of 67% or less to the total pressure of the discharge gas.
5. The plasma display panel of claim 1 , wherein
the first gas component accounts for a principal ratio of the discharge gas.
6. The plasma display panel of claim 5 , wherein
the second gas component is contained at a partial pressure ratio of 15% or less to the total pressure of the discharge gas.
7. The plasma display panel of claim 1 , wherein
the second gas component is contained at a partial pressure ratio of 3% or more to the total pressure of the discharge gas.
8. The plasma display panel of claim 1 , wherein
the discharge gas contains a third gas component composed of an oxygen gas.
9. The plasma display panel of claim 8 , wherein
the third gas component is contained at a partial pressure ratio in a range of 0.01% to 1%, inclusive, to the total pressure of the discharge gas.
10. The plasma display panel of claim 1 , wherein
a dielectric layer is disposed on a surface of the protective layer, the surface facing away from the space in a thickness direction of the hermetically sealed container, the dielectric layer having a thickness of 20 μm or less.
11. The plasma display panel of claim 10 , wherein
an electrode pair is disposed on a surface of the dielectric layer, the surface facing away from the space in a thickness direction of the hermetically sealed container, each electrode of the electrode pair being made of a metal material and not including an oxide film.
12. The plasma display panel of claim 1 , wherein
the protective layer is made of magnesium oxide.
13. A plasma display panel apparatus comprising i) a panel unit having a hermetically sealed container containing discharge gas in an inner space therein, the hermetically sealed container including a protective layer and a phosphor layer opposing each other across the inner space and ii) a drive unit operable to apply, in accordance with an inputted image signal, a voltage pulse to each electrode of an electrode pair of the panel unit, wherein the discharge gas contains:
a first gas component composed of a rare gas element which emits light to excite a phosphor in the phosphor layer during a plasma discharge;
a second gas component composed of an argon gas; and
a neon gas at a partial pressure ratio in a range of 0% to 0.5%, inclusive, to a total pressure of the discharge gas, and
the second gas component is contained at a partial pressure ratio in a range of 1% to 25%, inclusive, to the total pressure of the discharge gas, and
the total pressure of the discharge gas in the space is from 1.50×10 4 Pa to 6.66×10 4 Pa, inclusive.
14. The plasma display panel apparatus of claim 13 , wherein
the first gas component is one of a xenon gas and a krypton gas.
15. The plasma display panel apparatus of claim 13 , wherein
the total pressure of the discharge gas is 5.00×10 4 Pa or less.
16. The plasma display panel apparatus of claim 13 , wherein
the second gas component is contained at a partial pressure ratio of 67% or less to the total pressure of the discharge gas.
17. The plasma display panel apparatus of claim 13 , wherein
the first gas component accounts for a principal ratio of the discharge gas.
18. The plasma display panel apparatus of claim 17 , wherein
the second gas component is contained at a partial pressure ratio of 15% or less to the total pressure of the discharge gas.
19. The plasma display panel apparatus of claim 13 , wherein
the second gas component is contained at a partial pressure ratio of 3% or more to the total pressure of the discharge gas.
20. The plasma display panel apparatus of claim 13 , wherein
the discharge gas contains a third gas component composed of an oxygen gas.
21. The plasma display panel apparatus of claim 20 , wherein
the third gas component of the discharge gas is contained at a partial pressure ratio in a range of 0.01% to 1%, inclusive, to the total pressure of the discharge gas.
22. The plasma display panel apparatus of claim 13 , wherein
a dielectric layer is disposed on a surface of the protective layer, the surface facing away from the space in a thickness direction of the hermetically sealed container, the dielectric layer having a thickness of 20 μm or less.
23. The plasma display panel apparatus of claim 22 , wherein
an electrode pair is disposed on a surface of the dielectric layer, the surface facing away from the space in a thickness direction of the hermetically sealed container, each electrode of the electrode pair being made of a metal material and not including an oxide film.
24. The plasma display panel apparatus of claim 13 , wherein
the protective layer is made of magnesium oxide.