Plasma display panel

Abstract

The plasma display panel (PDP) includes a front substrate and a second dielectric layer. At least one of the front substrate and the second dielectric layer is formed of a glass material. The glass material includes a transition metal oxide and a rare earth metal oxide. The transition metal oxide is at least one of oxides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V) and scandium (Sc). The rare earth metal oxide is at least one of oxides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy) and holmium (Ho).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partial exploded perspective view showing one embodiment of a plasma display panel (PDP) according to an embodiment of the present invention.

FIG. 2 is a view showing CIE L*a*b* color coordinates in a color coordinate system.

Claims

1. A plasma display panel (PDP) comprising: a front substrate;a rear substrate opposing the front substrate;a plurality of address electrodes disposed between the front substrate and the rear substrate;a first dielectric layer disposed between the front substrate and the rear substrate, wherein the plurality of address electrodes are buried between the first dielectric layer and the rear substrate;a plurality of barrier ribs disposed between the first dielectric layer and the front substrate to define discharge spaces;a phosphor layer disposed in at least part of the discharge spaces;a plurality of display electrodes disposed between the front substrate and the first dielectric layer;a second dielectric layer disposed between the front substrate and the rear substrate, wherein the plurality of display electrodes are buried between the second dielectric layer and the front substrate; anda protective layer disposed between the second dielectric layer and the rear substrate,wherein at least one of the front substrate and the second dielectric layer comprises at least one transition metal oxide selected from the group consisting of oxides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V), and scandium (Sc), andwherein the at least one of the front substrate and the second dielectric layer, which comprises the at least one transition metal oxide, further comprises at least one rare earth metal oxide selected from the group consisting of oxides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy), and holmium (Ho).

2. The plasma display panel of claim 1, wherein the at least one of the front substrate and the second dielectric layer comprises a glass material.

3. The plasma display panel of claim 2, wherein the glass material has 26<L*<36, and b*<−3.5 or 1<b* under the CIE L*a*b* convention.

4. The plasma display panel of claim 2, wherein the at least one transition metal oxide and the at least one rare earth metal oxide are substantially uniformly dispersed in the front substrate.

5. The plasma display panel of claim 2, wherein the glass material comprises one selected from the group consisting of soda lime glass, neutral borosilicate glass, and non-alkali glass.

6. The plasma display panel of claim 2, wherein the glass material comprises the at least one transition metal oxide from about 0.01 to about 2 wt % with respect to the total weight of the glass material.

7. The plasma display panel of claim 2, wherein the glass material comprises the at least one transition metal oxide prepared by adding at least one selected from the group consisting of oxides, chlorides, nitrides, and sulfides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V) and scandium (Sc) to a glass material without the transition metal oxide.

8. The plasma display panel of claim 2, wherein the glass material comprises the at least one rare earth metal oxide from about 0.01 to about 4 wt % with respect to the total weight of the glass material.

9. The plasma display panel of claim 2, wherein the glass material comprises the at least one rare earth metal oxide is prepared by adding at least one selected from the group consisting of oxides, chlorides, nitrides, and sulfides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy) and holmium (Ho) to a glass material without the rare earth metal oxide.

10. The plasma display panel of claim 1, wherein the weight ratio of the at least one transition metal oxide to the at least one rare earth metal oxide is from about 0.5 to about 2.

11. A display device comprising: a front substrate comprising a display surface to display an image thereon;a rear substrate opposing the front substrate;a plurality of discharge cells interposed between the front substrate and the rear substrate;a plurality of discharge electrodes interposed between the front substrate and the plurality of discharge cells, anda dielectric layer interposed between the front substrate and the plurality of discharge cells, wherein the plurality of discharge electrodes are buried between the front substrate and the dielectric layer,wherein at least a portion of the front substrate comprises at least one rare earth metal oxide selected from the group consisting of oxides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy), and holmium (Ho).

12. The device of claim 11, wherein the portion of the front substrate further comprises at least one transition metal oxide selected from the group consisting of oxides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V), and scandium (Sc).

13. The device of claim 11, wherein at least a portion of the dielectric layer comprises at least one transition metal oxide selected from the group consisting of oxides of cobalt (Co), nickel (Ni), selenium (Se), iron (Fe), manganese (Mn), chromium (Cr), vanadium (V), and scandium (Sc).

14. The device of claim 13, wherein the portion of the dielectric layer further comprises at least one at least one rare earth metal oxide selected from the group consisting of oxides of praseodymium (Pr), neodymium (Nd), samarium (Sm), dysprosium (Dy), and holmium (Ho).

15. The device of claim 11, wherein the front substrate is configured to absorb a substantial amount of visible light with a wavelength about 550 nm to about 600 nm.

16. The device of claim 11, wherein the front substrate has the value of L* about 26 to about 36.

17. The device of claim 11, wherein the front substrate has the value of b* smaller than about −3.5 or greater than about 1 under the CIE L*a*b* convention.