Dielectric layer containing carbon for a plasma display panel
View Patent ↗A plasma display panel including a front panel having a first substrate, a first electrode, a first dielectric layer and a protective layer wherein the first electrode is formed on the first substrate, the first dielectric layer is formed over the first substrate so as to cover the first electrode, and the protective layer is formed on the first dielectric layer, and a rear panel having a second substrate, a second electrode, a second dielectric layer and a phosphor layer wherein the second electrode is formed on the second substrate, the second dielectric layer is formed over the second substrate so as to cover the second electrode, the phosphor layer is formed on the second dielectric layer.
1. A plasma display panel comprising:
a front panel comprising a first substrate, a first electrode, a first dielectric layer and a protective layer, the first electrode being formed on the first substrate, the first dielectric layer being formed over the first substrate so as to cover the first electrode, and the protective layer being formed on the first dielectric layer; and
a rear panel comprising a second substrate, a second electrode, a second dielectric layer and a phosphor layer, the second electrode being formed on the second substrate, the second dielectric layer being formed over the second substrate so as to cover the second electrode, and the phosphor layer being formed on the second dielectric layer,
wherein
the front panel and the rear panel are disposed so that the protective layer and the phosphor layer are opposed to each other, and thereby a discharge space is formed between the front panel and the rear panel;
at least the first dielectric layer has a carbon concentration of 10 3 ppm to 10 5 ppm, wherein the carbon is derived from an alkyl or alkylene group bonded to a siloxane backbone, the siloxane backbone being contained in at least one of the first dielectric layer and the second dielectric layer;
each of the first and second electrodes has an edge curl; and
a dielectric layer is disposed between the first dielectric layer and the first electrode, and has a carbon concentration of 10 4 ppm or lower.
2. A plasma display panel comprising:
a front panel comprising a first substrate, a first electrode, a first dielectric layer and a protective layer, the first electrode being formed on the first substrate, the first dielectric layer being formed over the first substrate so as to cover the first electrode, and the protective layer being formed on the first dielectric layer; and
a rear panel comprising a second substrate, a second electrode, a second dielectric layer and a phosphor layer, the second electrode being formed on the second substrate, the second dielectric layer being formed over the second substrate so as to cover the second electrode, and the phosphor layer being formed on the second dielectric layer,
wherein
the front panel and the rear panel are disposed so that the protective layer and the phosphor layer are opposed to each other, and thereby a discharge space is formed between the front panel and the rear panel;
at least the first dielectric layer has a carbon concentration of 10 3 ppm to 10 5 ppm, wherein the carbon is derived from an alkyl or alkylene group bonded to a siloxane backbone, the siloxane backbone being contained in at least one of the first dielectric layer and the second dielectric layer;
each of the first and second electrodes has an edge curl;
the first dielectric layer has a two-layered structure composed of a lower layer and an upper layer, the lower layer being in contact with the first electrode and the upper layer being in contact with the protective layer; and
the lower layer has the carbon concentration of 10 3 ppm to 10 4 ppm, and the upper layer has the carbon concentration of 10 3 ppm to 10 5 ppm.