IP Library Granted Patent US 7,932,675
Granted Patent B2
US 7,932,675 · App. 11/814,293 · Granted Apr 26, 2011

Plasma display panel

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Quick Facts
Patent No.
US 7,932,675
App. No.
11/814,293
Granted
Apr 26, 2011
Kind
B2
Abstract

There is provided a plasma display panel including: a front plate having display electrodes, a dielectric layer, and a protective layer formed on a glass substrate; and a rear plate that has electrodes, barrier ribs, and a phosphor layer formed on a substrate and is disposed opposite to the front plate. Peripheries of the front plate and the rear plate are sealed to form a discharge space, the display electrodes contains at least silver, the dielectric layer is configured to include a first dielectric layer that covers the display electrodes and second dielectric layer that covers the first dielectric layer and contains bismuth oxide, the thickness of the first dielectric layer is equal to or larger than 5 μm and equal to or smaller than 13 μm, and the ratio of the thickness of the first dielectric layer to the thickness of the display electrodes is larger than 1 and equal to or smaller than 3.

Claims (19)

1. A plasma display panel comprising:

a front plate having display electrodes, a dielectric layer, and a protective layer formed on a glass substrate; and

a rear plate that has electrodes, barrier ribs, and a phosphor layer formed on a substrate and is disposed opposite to the front plate,

wherein peripheries of the front plate and the rear plate are sealed to form a discharge space,

the display electrodes contains at least silver,

the dielectric layer is configured to include a first dielectric layer that covers the display electrodes and contains bismuth oxide, and a second dielectric layer that covers the first dielectric layer and contains bismuth oxide, wherein the first dielectric layer contains 25% to 40% by weight of bismuth oxide,

the thickness of the first dielectric layer is equal to or larger than 5 μm and equal to or smaller than 13 μm, and

the ratio of the thickness of the first dielectric layer to the thickness of the display electrodes is larger than 1 and equal to or smaller than 3.

2. The plasma display panel of claim 1 ,

wherein the content of bismuth oxide of the second dielectric layer is smaller than the content of bismuth oxide of the first dielectric layer.

3. The plasma display panel of claim 2 ,

wherein the first dielectric layer contains 0.1% by weight or more and 7% by weight or less of at least one of molybdenum oxide and tungsten oxide.

4. The plasma display panel of claim 3 , wherein the first dielectric layer and the second dielectric layer contain at least one of zinc oxide, boron oxide, silicon oxide, at least one of zinc oxide, calcium oxide, strontium oxide, and barium oxide.

5. The plasma display panel of claim 2 ,

wherein the second dielectric layer contains 11% by weight or more and 20% by weight or less of bismuth oxide.

6. The plasma display panel of claim 5 ,

wherein the first dielectric layer and the second dielectric layer contain at least one of zinc oxide, boron oxide, silicon oxide, aluminum oxide, calcium oxide, strontium oxide, and barium oxide.

7. The plasma display panel of claim 2 ,

wherein the first dielectric layer and the second dielectric layer contain at least one of zinc oxide, boron oxide, silicon oxide, aluminum, oxide, calcium oxide, strontium oxide, and barium oxide.

Assignments (1)
CHANGE OF NAME Recorded Nov 11, 2008
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 021818/0725 →