Plasma display panel
View Patent ↗A plasma display panel (PDP) is made of front panel ( 2 ) and a rear panel. The front panel includes display electrodes ( 6 ), dielectric layer ( 8 ), and protective layer ( 8 ) that are formed on glass substrate ( 3 ). The rear panel includes electrodes, barrier ribs, and phosphor layers that are formed on a substrate. The front panel and the rear panel are faced with each other, and the peripheries thereof are sealed to form a discharge space therebetween. Each of display electrodes ( 6 ) contains at least silver. Dielectric layer ( 8 ) is made of first dielectric layer ( 81 ) that contains bismuth oxide and calcium oxide and covers display electrodes ( 6 ), and second dielectric layer ( 82 ) that contains bismuth oxide and barium oxide and covers first dielectric layer ( 81 ).
1. A plasma display panel (PDP) comprising:
a front panel including display electrodes, a dielectric layer, and a protective layer that are formed on a glass substrate; and
a rear panel including electrodes, barrier ribs, and phosphor layers that are formed on a substrate, wherein the front panel and the rear panel are faced with each other, and peripheries thereof are sealed to form a discharge space therebetween,
wherein each of the display electrodes contains at least silver;
the dielectric layer contains no lead; and
the dielectric layer includes a first dielectric layer that contains bismuth oxide and calcium oxide and covers the display electrodes, and a second dielectric layer that contains bismuth oxide and barium oxide and covers the first dielectric layer, the first dielectric layer and the second dielectric layer including at least one of molybdenum trioxide and tungstic trioxide.
2. The PDP of claim 1 , wherein the first dielectric layer includes 20 wt % to 40 wt % (inclusive) of the bismuth oxide therein.
3. The PDP of claim 2 , wherein the first dielectric layer includes 0.1 wt % to 7 wt % (inclusive) of said one of molybdenum trioxide, and tungstic trioxide.
4. The PDP of claim 1 , wherein the second dielectric layer includes 11 wt % to 40 wt % (inclusive) of the bismuth oxide therein.
5. The PDP of claim 4 , wherein the second dielectric layer includes 0.1 wt % to 5 wt % (inclusive) of said one of molybdenum trioxide, and tungstic trioxide.
6. The PDP of claim 1 , wherein one of the first dielectric layer and the second dielectric layer further includes at least one of zinc oxide, boron oxide, silicon dioxide, aluminum oxide, calcium oxide , strontium oxide, and barium oxide.
7. The PDP of claim 1 , wherein the first dielectric layer is thinner than the second dielectric layer.