Plasma display panel

• US 20090184623A1
• Filed: 03/27/2009
• Published: 07/23/2009
• Est. Priority Date: 11/09/2005
• Status: Abandoned Application

• Current Assignee: Young-Gil Yoo
• Original Assignee: Young-Gil Yoo
• Inventors: Yoo, Young-Gil
• Application Number:
  US12/385,010
• Publication Number:
  US 20090184623A1
• Time in Patent Office: Days
• US Class Current: 313/485
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/36 Spacers, barriers, ribs, partitions or the like
• CPC Class Codes: H01J 11/52 Means for absorbing or adsorbing the gas mixture, e.g. by gettering
• CPC Class Codes: H01J 2211/366 characterized by the material
• CPC Class Codes: H01J 9/242 Spacers between faceplate and backplate

Abstract

The present invention relates to a plasma display panel (PDP) that includes a first substrate, an address electrode formed on the first substrate, a dielectric layer formed on the first substrate and covering the address electrode, a barrier rib formed on the dielectric layer, a second substrate, a display electrode formed on the second substrate, a dielectric layer formed on the second substrate and covering the display electrode, and a protection layer formed on the dielectric layer of the second substrate. Discharge cells are defined by barrier ribs, and a phosphor layer is formed in the discharge cells. Barrier ribs contains inorganic adsorbent. When a PDP is operated for a long time, residual carbon or water is generated inside discharge cells, and thereby contaminates a discharge gas contained in the discharge cells. The inorganic adsorbent included in the barrier ribs absorb the residual carbon or water improving efficiency and lifespan of the PDP.

Claims

1. A plasma display panel comprising:

a first substrate;

a second substrate spaced apart from the first substrate and facing the first substrate;

an address electrode formed on the first substrate;

a dielectric layer formed on the first substrate and covering the address electrode;

a barrier rib formed on the dielectric layer;

a discharge cell being formed in a space enclosed by the barrier rib, the first substrate, and the second substrate;

a gas discharge being performed in the discharge cell;

an inorganic adsorbent included in the barrier rib for absorbing an impurity generated in the discharge cell;

a phosphor layer formed inside the discharge cell;

a display electrode formed on a surface of the second substrate facing the first substrate;

a dielectric layer formed on the surface of the second substrate and covering the display electrode; and

a protection layer formed on the dielectric layer of the second substrate;

2. The plasma display panel of claim 1, wherein the inorganic adsorbent includes an ion exchange zeolite.

3. The plasma display panel of claim 1, wherein the inorganic adsorbent is a zeolite selected from the group consisting of a lithium ion exchange mordenite, a sodium ion exchange mordenite, a calcium ion exchange faujasite (X-type), a calcium ion exchange clinoptilolite, and combinations thereof.

4. The plasma display panel of claim 1, wherein the inorganic adsorbent is dispersed in the barrier rib.

5. The plasma display panel of claim 1, wherein the inorganic adsorbent has a specific surface area ranging from about 10 m²/g to about 1500 m²/g.

6. The plasma display panel of claim 1, wherein the barrier rib includes about 1 wt % to about 10 wt % of the inorganic adsorbent based on the total weight of the barrier rib.

7. The plasma display panel of claim 1, wherein the barrier rib including the inorganic adsorbent has a water removal efficiency ranging from 80% to 99%.

8. The plasma display panel of claim 1, wherein the barrier rib including the inorganic adsorbent has a residual carbon removal efficiency ranging from 15% to 40%.

9. A composition for preparing a barrier rib of a plasma display panel comprising:

a glass frit;

a polymer resin;

an organic solvent; and

an inorganic adsorbent.

10. The composition for preparing the barrier rib of claim 9, wherein the polymer resin is one selected from the group consisting of an acryl-based resin, an epoxy-based resin, a cellulose-based resin, and combinations thereof.

11. The composition for preparing the barrier rib of claim 9, wherein the organic solvent is one selected from the group consisting of butyl cellosolve (BC), butyl carbitol acetate (BCA), terpineol (TP), texanol, and combinations thereof.

12. The composition for preparing the barrier rib of claim 9, wherein the inorganic adsorbent includes an ion exchange zeolite.

13. The composition for preparing the barrier rib of claim 9, wherein the inorganic adsorbent is a zeolite selected from the group consisting of a lithium ion exchange mordenite, a sodium ion exchange mordenite, a calcium ion exchange faujasite (X-type), clinoptilolite, and combinations thereof.

14. The composition for preparing the barrier rib of claim 9, comprised of

about 100 parts by weight to about 150 parts by weight of the polymer resin,

about 2 parts by weight to about 50 parts by weight of the organic solvent, and

about 1 parts by weight to about 10 parts by weight of the inorganic adsorbent, based on 100 parts by weight of the glass frit.