Composition of plasma display panel

• US 20050003237A1
• Filed: 12/30/2003
• Published: 01/06/2005
• Est. Priority Date: 07/01/2003
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Yoon Kwan
• Granted Patent: US 7,009,330 B2
• Time in Patent Office: Days
• US Class Current: 428/697
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/38 Dielectric or insulating layers
• CPC Class Codes: Y10T 428/265 1 mil or less

Abstract

A composition of a plasma display panel (PDP) is disclosed. In order to effectively reduce a jitter, the composition contains a ferroelectric transparent ceramics material.

Claims

1. A composition of a plasma display panel (PDP) comprising a ferroelectric transparent ceramics material.

2. The composition of claim 1, wherein the ferroelectric transparent ceramics material is contained in the composition of a dielectric of the PDP.

3. The composition of claim 1, wherein a lower dielectric layer of the PDP is formed such that ferroelectric transparent ceramics powder is mixed in the range of 1 wt %˜

20 wt % to parent glass powder, and then, the mixed powder is printed and fired.

4. The composition of claim 1, wherein a ferroelectric transparent ceramics thin film is formed with a thickness of thousands of Å

at the surface of the lower dielectric layer or embedded in the lower dielectric layer of the PDP.

5. The composition of claim 1, wherein a composition of an upper dielectric layer of the PDP contains the ferroelectric transparent ceramics material.

6. The composition of claim 5, wherein the upper dielectric layer is formed such that at least one powder of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is mixed in the range of 1 wt %˜

5 wt % to parent glass powder, and the mixed powder is printed and fired.

7. The composition of claim 5, wherein at least one thin film of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is formed with a thickness of scores of Å

˜

hundreds of Å

at the surface of the upper dielectric layer.

8. The composition of claim 1, wherein a composition of a phosphor of the PDP contains the ferroelectric transparent ceramics powder.

9. The composition of claim 1, wherein the phosphor layer of the PDP is formed by mixing ferroelectric transparent ceramics powder of a few nm in the range of 1 wt %˜

10 wt % to the phosphor powder.

10. The composition of claim 1, wherein the ferroelectric transparent ceramics thin film is formed at the surface of the phosphor layer of the PDP.

11. The composition of claim 10, wherein the ferroelectric transparent ceramics thin film is formed with a thickness of below 100 Å

at the surface of the phosphor layer.

12. The composition of claim 1, wherein the ferroelectric transparent ceramics material has a 70% or more visible ray transmittance and a 1000 or more electric permittivity.

13. The composition of claim 1, wherein a composition of the ferroelectric transparent ceramics material is at least one selected from the group consisting of (Pb—

La)(ZrTi)O₃, (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(HfTi)O₃, (Pb,Ba)—

(ZrTi)O₃, (Sr,Ca)—

(LiNbTi)O₃, LiTaO₃, SrTiO₃, La2Ti₂O₇, LiNbO₃, (Pb,La)—

(MgNbZtTi)O₃, (Pb,Ba)—

(LaNb)O₃, (Sr,Ba)—

Nb₂O₃, K(Ta,Nb)O₃, (Sr,Ba,La)—

(Nb₂O₆), NaTiO₃, MgTiO₃, BaTiO₃, SrZrO₃ or KnbO₃.

14. The composition of claim 1, wherein the PDP comprising:

a lower dielectric layer including the ferroelectric transparent ceramics material);

an upper dielectric layer including the ferroelectric transparent ceramics material; and

a phosphor layer including the ferroelectric transparent ceramics material.

15. A composition of a PDP, comprising:

a lower dielectric layer containing a ferroelectric transparent ceramics material;

an upper dielectric layer containing the ferroelectric transparent ceramics material; and

a fluorescent material with the ferroelectric transparent ceramics material mixed therein or having a ferroelectric transparent ceramics thin film.

16. The composition of claim 15, wherein the ferroelectric transparent ceramics material has a 70 or more visible ray transmittance and a 1000 or more electric permittivity.

17. The composition of claim 15, wherein the ferroelectric transparent ceramics material is at least one selected from the group consisting of (Pb—

La)(ZrTi)O₃, (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(HfTi)O₃, (Pb,Ba)—

(ZrTi)O₃, (Sr,Ca)—

(LiNbTi)O₃, LiTaO₃, SrTiO₃, La2Ti₂O₇, LiNbO₃, (Pb,La)—

(MgNbZtTi)O₃, (Pb,Ba)—

(LaNb)O₃, (Sr,Ba)—

Nb₂O₃, K(Ta,Nb)O₃, (Sr,Ba,La)—

(Nb₂O₆), NaTiO₃, MgTiO₃, BaTiO₃, SrZrO₃ or KnbO₃.

18. The composition of claim 15, wherein the lower dielectric layer is formed such that ferroelectric transparent ceramics powder is mixed in the range of 1 wt %˜

20 wt % to parent glass powder, and then, the mixed powder is printed and fired.

19. The composition of claim 15, wherein a ferroelectric transparent ceramics thin film is formed with a thickness of thousands of Å

at the surface of the lower dielectric layer or embedded in the lower dielectric layer.

20. The composition of claim 15, wherein the upper dielectric layer is formed such that at least one powder of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is mixed in the range of 1 wt %˜

5 wt % to parent glass powder, and the mixed powder is printed and fired.

21. The composition of claim 15, wherein at least one thin film of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is formed with a thickness of scores of Å

˜

hundreds of Å

at the surface of the upper dielectric layer.

22. The composition of claim 15, wherein the phosphor layer of the PDP is formed by mixing ferroelectric transparent ceramics powder of a few nm in the range of 1 wt %˜

10 wt % to the phosphor powder.

23. The composition of claim 15, wherein the ferroelectric transparent ceramics thin film is formed with a thickness of below 100 Å

at the surface of the phosphor layer.