Plate for a plasma display panel (PDP), method for fabricating the plate, and a PDP having the plate

• US 6,674,237 B2
• Filed: 09/10/2001
• Issued: 01/06/2004
• Est. Priority Date: 05/04/2001
• Status: Expired due to Fees

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Lee, Joon-bae, Park, Chang-won, Choi, Chaun-gi, Do, Young-rag
• Primary Examiner(s): Sember, Thomas M.
• Assistant Examiner(s): Dong, Dalei
• Application Number:
  US09/948,839
• Publication Number:
  US 20020190652A1
• Time in Patent Office: 848 Days
• Field of Search: 313/582, 313/586, 313/587, 313/470, 313/466
• US Class Current: 313/587
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 2211/225 Material of electrodes
• CPC Class Codes: H01J 2211/245 Shape, e.g. cross section or pattern
• CPC Class Codes: H01J 2211/444 Means for improving contrast or colour purity, e.g. black matrix or light shielding means
• CPC Class Codes: H01J 9/02 Manufacture of electrodes or electrode systems

Abstract

A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).

Claims

1. A plate for a plasma display panel (PDP), comprising:

a plate member comprising a transparent material;

electrodes formed in a predetermined pattern on said plate member;

a dielectric layer formed on said plate member to cover said electrodes, wherein;

said electrodes comprise a dielectric first component and a second component, the second component comprising at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silico (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt), and

amounts of the dielectric first component and the second components one of gradually change and stepwise change in a thickness direction of said electrodes extending away from said plate member.

2. The plate of claim 1, further comprising a black matrix pattern formed between adjacent pairs of said electrodes.

3. The plate of claim 1, wherein the dielectric first component comprises at least one dielectric material selected from a group consisting of SiOx, MgF₂, CaF2, Al₂O₃, SnO₂, In₂O₃, and indium thin oxide (ITO), where x>

1.

4. The plate of claim 1, wherein the-amounts of the dielectric first component and the second components gradually change in thickness direction of said electrodes extending away from said plate member.

5. The plate of claim 1, wherein the amounts of the dielectric first component and the second components change in step gradients in a thickness direction of said electrodes extending away from said plate member.

6. The plate of claim 1, wherein the amounts of the dielectric first component and the second components gradually change in said electrodes as a function of distance from said plate member such that a ratio of light absorption of said electrodes gradually increases with increased distance from an external light entering side of said plate member.

7. The plate of claim 4, wherein the amounts of the dielectric first component and the second components gradually change in the thickness direction of said electrodes such that a refractive index of said electrodes gradually changes with increased distance from an external light entering side of said plate member.

8. The plate of claim 4, wherein the amount of the dielectric first component gradually decreases and the amount of the second component gradually increases with increased distance from an external light entering side of said plate member.

9. A plate for a plasma display panel (PDP), comprising:

a plate member comprising a transparent material;

electrodes formed in a predetermined pattern on said plate member;

a dielectric layer formed on said plate member to cover said electrodes;

a black matrix pattern formed between adjacent pairs of said electrodes, wherein;

said electrodes comprise a dielectric first component and a second component, the second component comprising at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silico (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt), and

said black matrix pattern comprises the dielectric first component and the second components, and

the amounts of the dielectric first component and the second components change in step gradients in a thickness direction of said black matrix pattern extending away from said plate member.

10. A plasma display panel (PDP comprising:

a back plate;

a transparent front plate bonded with said back plate with a predetermined separation gap to form a discharge space therebetween;

first electrodes and second electrodes arranged on a side of one of said back plate and said front plate to cause a discharge of a plasma;

third electrodes arranged within the discharge space and on a side of the other of said back plate and said front plate, and

a discharge gas to fill the discharge space, wherein;

said first electrodes and said second electrodes comprise;

a dielectric first component, and

a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt), and

amounts of the dielectric first component and the second components one of gradually change and stepwise change in a thickness direction of said first and second electrodes extending into the discharge space.

11. The PDP of claim 10, wherein the first component comprises at least one dielectric material selected from a group consisting SiOx, MgF₂, CaF₂, Al₂O₃, SnO₂, In₂O₃, and ITO, where x>

1.

12. The PDP of claim 10, wherein the amounts of the dielectric first component and the second components change in step gradients in a thickness direction of said first and second electrodes extending into the discharge space.

13. The PDP of claim 11, wherein the amounts of the dielectric first component and the second components gradually change in thickness direction of said first and second electrodes extending into the discharge space.

14. A plasma display panel (PDP) comprising:

a back plate;

first electrodes formed in a predetermined pattern on said back plate;

a transparent front plate bonded with said back plate having said first electrodes to form a discharge space therebetween;

second and third electrodes formed a side of said front plate opposite said first electrodes and at a predetermined angle with respect to a direction of said first electrodes;

a barrier to partition the discharge space between said back plate an said front plate;

a first dielectric layer formed on said back plate to cover said first electrodes;

a second dielectric layer formed on said front plate to cover said second and third electrodes; and

a black matrix pattern formed between adjacent pairs of said second and third electrodes on the side of said front plate, wherein;

said black matrix pattern and one of said first electrodes, said second electrodes, and said third electrodes is formed of a dielectric first component and a metallic second component, the second component comprising at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt), and

the amounts of the first and second components gradually change in a thickness direction of said first and second electrodes and said black matrix pattern extending into the discharge space.

15. The PDP of claim 14, wherein the first component comprises at least one dielectric material selected from a group consisting of SiOx, MgF₂, CaF₂, Al₂O₃, SnO₂, In₂O₃, and ITO, where x>

1.

16. The PDP of claim 15, wherein the amounts of the dielectric first component and the second components change in step gradients in the thickness direction of said first and second electrodes and said black matrix pattern extending into the discharge space.

17. A plasma display panel (PDP) comprising:

a back plate;

first electrodes formed in a predetermined pattern on said back plate;

a transparent front plate bonded with said back plate having said fir electrodes to form a discharge space therebetween;

second and third electrodes formed on a side of said front plate opposite said first electrodes and at a predetermined angle with respect to a direction of said first electrodes;

a barrier to partition the discharge space between said back plate an said front plate;

a first dielectric layer formed on said back plate to cover said first electrodes;

a second dielectric layer formed on said front plate to cover said second and third electrodes; and

a black matrix pattern formed between adjacent pairs of said second and third electrodes on the side of said front plate, wherein;

said black matrix pattern and one of said first electrodes, said second electrodes, and said third electrodes is formed of a dielectric first component and a metallic second component, the second component comprising at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zind (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt), and

each of said second and third electrodes comprises a single electrode having a meshed pattern defining a plurality of apertures.

18. The PDP of claim 17, wherein the meshed patter comprises a plurality of parallel main electrode portions and a plurality of connect electrode portions connecting the parallel main electrode portions at a predetermined angle to define the plurality of apertures.

19. A plasma display panel (PDP) comprising:

a back plate;

first electrodes formed in a predetermined pattern on said back plate;

a transparent front plate bonded with said back plate having said firs electrodes to form a discharge space therebetween;

second electrodes and third electrodes formed on a side of said front late opposite said first electrodes and at a predetermined angle with respect to a direction of said first electrodes;

a barrier to partition the discharge space between said back plate and said front plate;

a first dielectric layer formed on said back plate to cover said first electrodes;

a second dielectric layer formed on said front plate to cover said second and third electrodes; and

a black matrix pattern formed between adjacent pairs of said second and third electrodes on the side of said front plate; and

an auxiliary indium tin oxide (ITO) electrode having a predetermine width and extending from each of said second and third electrodes,

wherein said black matrix pattern and one of said first electrodes, said second electrodes, and said third electrodes is formed of a dielectric first component and a metallic second component, the second component comprising at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).

20. A plasma display panel (PDP) comprising:

a back plate;

first electrodes formed in a predetermined pattern on said back plate;

a transparent front plate bonded with said back plate having said first electrodes to form a discharge space therebetween;

second electrodes and third electrodes formed on one side of said front plate opposite said first electrodes at a predetermined angle with respect to a direction of said first electrodes;

a barrier to partition the discharge space between said back plate an said front plate;

a first dielectric layer formed on said back plate to cover said first electrodes;

a second dielectric layer formed on said front plate to cover said second and third electrodes; and

a black matrix pattern formed between adjacent pairs of said second and third electrodes on the one side of said front plate, wherein;

said black matrix pattern and one of said first electrodes, said second electrodes, and said third electrodes comprise a dielectric material and a conductive metal, and

amounts of the dielectric material and the conductive metal change in a thickness direction of said first, second, third electrodes and said black matrix pattern extending into the discharge space.

21. A plate for a plasma display panel (PDP), comprising:

a plate member comprising a transparent material;

an electrode on said plate member, wherein said electrode has a refractive index which varies one of gradually and stepwise as a function of thickness so as to absorb external light passing through said plate member; and

a dielectric layer to cover said plate member and said electrode.

22. The plate of claim 21, wherein said electrode variably refracts the external light passing through said electrode to absorb the external light.

23. The plate of claim 21, wherein said electrode as an achromatic black quality.

24. The plate of claim 21, wherein the refractive index changes with increased distance from an external light entering side of said late member.

25. The plate of claim 21, wherein the refractive index changes due to a change in relative concentration of a metallic component and a dielectric component as a function of thickness.

26. The plate of claim 24, wherein the refractive index increases with increased distance from the external light entering side of said plate member.

27. The plate of claim 25, wherein, as a function of thickness within said electrode, a concentration profile of the metallic component is the reciprocal of a concentration profile of the dielectric component.

28. A plate for a plasma display panel (PDP), comprising:

a plate member comprising a transparent material;

an electrode on said plate member, wherein said electrode absorbs external light passing through said plate member; and

a dielectric layer to cover said plate member and said electrode,

wherein said electrode comprises a mixture of components having relative amounts that vary within portions of said electrode to vary a refractive index within a thickness of said electrode.