Composition of plasma display panel

• US 7,009,330 B2
• Filed: 12/30/2003
• Issued: 03/07/2006
• Est. Priority Date: 07/01/2003
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Yoon Kwan
• Primary Examiner(s): Xu, Ling X.
• Application Number:
  US10/750,928
• Publication Number:
  US 20050003237A1
• Time in Patent Office: 798 Days
• Field of Search: 428/336, 428/697, 428/699, 428/690, 428701-702, 428/426, 501/134, 501/137, 501/139, 252/62.9 R, 252/62.9 PZ, 252/302.4 R, 313/231.31, 315/111.71
• US Class Current: 313/231.31
• 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 plasma display panel (PDP) comprising a dielectric layer and a phosphor layer, the phosphor layer (PDP) comprising a phosphor layer including a ferroelectric transparent ceramics material, wherein the phosphor layer of the PDP is formed by mixing a ferroelectric transparent ceramics powder with a phosphor powder.

2. The plasma display panel (PDP) of claim 1, wherein a lower dielectric layer of the PDP is formed such that the ferroelectric transparent ceramics powder is mixed in the range of 1 wt %˜

20 wt % to a parent glass powder, wherein a mix of the ferroelectric transparent ceramics powder and the parent glass powder is printed and fired.

3. The plasma display panel (PDP) of claim 1, further comprising:

an upper dielectric layer containing the ferroelectric transparent ceramics material.

4. The plasma display panel (PDP) of claim 3, 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 a parent glass powder, and the mixed powder is printed and fired.

5. The plasma display panel (PDP) of claim 3, wherein at least one thin film of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is formed at a surface of the upper dielectric layer.

6. The plasma display panel (PDP) of claim 1, wherein the phosphor layer of the PDP is formed by mixing the ferroelectric transparent ceramics powder of a few nm in the range of 1 wt %˜

10 wt % to the phosphor powder.

7. The plasma display panel (PDP) of claim 1, wherein the ferroelectric transparent ceramics material has a 70% or more visible ray transmittance and a 1000 or more electric permittivity.

8. The plasma display panel (PDP) 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.

9. The plasma display panel (PDP) of claim 1, further comprising:

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

an upper dielectric layer including the ferroelectric transparent ceramics material.

10. The plasma display panel (PDP) of claim 1, further comprising a lower dielectric layer including the ferroelectric transparent ceramics powder.

11. A plasma display panel (PDP) comprising:

a lower dielectric layer containing a ferroelectric transparent ceramics material;

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

a phosphor layer containing the ferroelectric transparent ceramics material or having a ferroelectric transparent ceramics thin film, wherein the phosphor layer of the PDP is formed by mixing the ferroelectric transparent ceramics material with a phosphor powder.

12. The plasma display panel (PDP) of claim 11, wherein the ferroelectric transparent ceramics material has a 70 or more visible ray transmittance and a 1000 or more electric permittivity.

13. The plasma display panel (PDP) of claim 11, 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.

14. The plasma display panel (PDP) of claim 11, wherein the lower dielectric layer is formed such that a ferroelectric transparent ceramics powder is mixed in the range of 1 wt %˜

20 wt % to a parent glass powder, wherein mix of the ferroelectric transparent ceramics powder and the parent glass powder is printed and fired.

15. The plasma display panel (PDP) of claim 11, wherein the ferroelectric transparent ceramics thin film is formed at a surface of the lower dielectric layer or embedded in the lower dielectric layer.

16. The plasma display panel (PDP) of claim 11, 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 a parent glass powder, and the mixed powder is printed and fired.

17. The plasma display panel (PDP) of claim 11, wherein at least one thin film of (Pb,Bi)—

(ZrTi)O₃, (Pb,La)—

(MgNbZrTi)O₃, (Pb,Ba)—

(LaNb)O₃ is formed at a surface of the upper dielectric layer.

18. The plasma display panel (PDP) of claim 11, 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.

19. The plasma display panel (PDP) of claim 11, wherein the ferroelectric transparent ceramics thin film is formed with a thickness of below 100 Å

at a surface of the phosphor layer.