Plasma display panel

• US 7,323,818 B2
• Filed: 12/23/2003
• Issued: 01/29/2008
• Est. Priority Date: 12/27/2002
• Status: Expired due to Fees

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Woo, Seok-Gyun, Yoo, Hun-Suk, Kim, Woo-Tae, Kwon, Jae-Ik, Kang, Kyoung-Doo
• Primary Examiner(s): Patel; Ashok
• Application Number:
  US10/746,541
• Publication Number:
  US 20040135509A1
• Time in Patent Office: 1,498 Days
• Field of Search: 313581-587
• US Class Current: 313/584
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/24 Sustain electrodes or scan electrodes
• CPC Class Codes: H01J 2211/245 Shape, e.g. cross section or pattern

Abstract

A plasma display panel includes a first substrate and a second substrate opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells. Phosphor layers are formed in each of the discharge cells. Discharge sustain electrodes are formed in a direction intersecting the address electrodes and paired such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes. Each of the discharge sustain electrodes include extension sections that extend into the discharge cells such that a pair of opposing extension sections is formed in each of the discharge cells. Distal ends of each of the extension sections extended from at least one of each pair of the bus electrodes are formed having a concave section.

Claims

1. A plasma display panel, comprising:

a first substrate and a second substrate opposing one another with a predetermined gap therebetween;

address electrodes formed on the second substrate;

barrier ribs mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells;

a phosphor layer formed in each of the discharge cells; and

discharge sustain electrodes formed in a direction intersecting the address electrodes such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes, each of the discharge sustain electrodes including extension sections that extend into the discharge cells such that a pair of opposing extension sections is formed in each of the discharge cells,

wherein distal ends of each of the extension sections extended from at least one of each pair of the discharge sustain electrodes are formed having a concave section.

2. The plasma display panel of claim 1, wherein the concave section is formed in substantially a center of the distal ends of the extension sections.

3. The plasma display panel of claim 1, wherein convex sections are formed at both sides of the concave section.

4. The plasma display panel of claim 1, wherein the concave section of the extension sections is connected to distal end periphery areas by curved, smoothly rounded sections.

5. The plasma display panel of claim 1, wherein each of the extension sections of the discharge sustain electrodes is formed such that at least one long side is inwardly formed away from an adjacent barrier rib for a predetermined length of the extension sections.

6. The plasma display panel of claim 1, wherein each of the extension sections of the discharge sustain electrodes is formed such that a width in the direction intersecting the address electrodes is decreased as a distance from a center of the discharge cells is increased.

7. A plasma display panel, comprising:

a first substrate and a second substrate opposing one another with a predetermined gap therebetween;

address electrodes formed on the second substrate;

barrier ribs mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells;

phosphor layers formed in each of the discharge cells; and

discharge sustain electrodes including bus electrodes formed in a direction intersecting the address electrodes such that each of the discharge cells is in communication with a pair of the bus electrodes, and extension electrodes formed extended from the bus electrode within each of the discharge cells such that a pair of opposing extension electrodes is formed in each of the discharge cells,

wherein distal ends of each of the extension electrodes extended from at least one of each pair of the bus electrodes are formed having a concave section.

8. The plasma display panel of claim 7, wherein the concave section is formed in substantially a center of the distal ends of the extension electrodes.

9. The plasma display panel of claim 7, wherein convex sections are formed at both sides of the concave section.

10. The plasma display panel of claim 7, wherein the concave section of the extension electrodes is connected to distal end periphery areas by curved, smoothly rounded sections.

11. The plasma display panel of claim 7, wherein each of the extension electrodes of the discharge sustain electrodes is formed such that a width in the direction intersecting the address electrodes is decreased as a distance from a center of the discharge cells is increased.

12. The plasma display panel of claim 7, wherein the extension electrodes are transparent.

13. A plasma display panel, comprising:

a first substrate and a second substrate opposing one another with a predetermined gap therebetween;

address electrodes formed on the second substrate;

barrier ribs mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells;

a phosphor layer formed in each of the discharge cells; and

discharge sustain electrodes formed in a direction intersecting the address electrodes such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes, each of the discharge sustain electrodes including extension sections that extend into the discharge cells such that a pair of opposing extension sections is formed in each of the discharge cells,

wherein distal ends of each of the extension sections extended from at least one of each pair of the discharge sustain electrodes are formed having a concave section, and

wherein at least a long gap and at least a short gap are formed together between the distal ends of the opposing extension sections.

14. The plasma display panel of claim 13, wherein the long gap is disposed between two short gaps.

15. The plasma display panel of claim 13, wherein each of the extension sections of the discharge sustain electrodes is formed such that a width in the direction intersecting the address electrodes is decreased as a distance from a center of the discharge cells is increased.

16. A plasma display panel, comprising:

first substrate and a second substrate opposing one another with a predetermined gap therebetween;

address electrodes formed on the second substrate;

barrier ribs mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells;

a phosphor layer formed in each of the discharge cells; and

discharge sustain electrodes formed in a direction intersecting the address electrodes such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes, each of the discharge sustain electrodes including a discharge sustain electrode extension section that extends into the discharge cell such that a pair of opposing discharge sustain electrode extension sections is formed in each of the discharge cells, a distal end of each discharge sustain electrode extension section having an enlarged discharge sustain electrode extension section with an enlarged section width being larger than a width of the discharge sustain electrode extension section distal from a communicating pair of discharge sustain electrodes of the discharge cell;

wherein among each pair of discharge sustain electrodes corresponding to a discharge cell, one of each pair is a scanning electrode that effects address discharge between address electrodes in a scan interval and an other of each pair is common electrode that effects display discharge between the common electrode and corresponding scanning electrode during a discharge sustain interval, and

wherein each of the address electrodes have an enlarged address electrode section at areas corresponding to the enlarged discharge sustain electrode extension section of an opposing scanning electrodes.

17. The plasma display panel of claim 16, wherein the enlarged address electrode section has a substantially quadrilateral enlarged address electrode section of width W1, a linear address electrode section of width W3 connecting in enlarged address electrode section of a first discharge cell to an enlarged address electrode section of an adjacent second discharge cell sharing a common address electrode, and a tapered address electrode section of width W2 connecting the enlarged address electrode section to the linear address electrode section distal from a respective communicating pair of discharge cells sharing the common address electrode.

18. The plasma display panel of claim 17, wherein width W1>

width W2>

width W3.

19. The plasma display panel of claim 16, wherein at least a long gap and at least a short gap are formed together between the distal ends of the opposing discharge sustain electrode extension sections.

20. A plasma display panel comprising:

a first substrate and a second substrate opposing one another with a predetermined gap therebetween;

address electrodes formed on the second substrate;

barrier ribs mounted in the gap between the first substrate and the second substrate to define a plurality of discharge cells, the discharge cells having a discharge cell gas excited by an initiator discharge voltage;

a phosphor layer formed in each of the discharge cells; and

discharge sustain electrodes formed in a direction intersecting the address electrodes such that each of the discharge cells is in communication with a pair of the discharge sustain electrodes, each of the discharge sustain electrodes including a discharge sustain electrode extension section that extends into the discharge cell such that a pair of opposing discharge sustain electrode extension sections is formed in each of the discharge cells with a gap between distal ends of the opposing discharge electrode extension sections;

wherein distal ends of each of the extension sections extended from at least one of each pair of the discharge sustain electrodes are formed having a concave section,

wherein an amount of Xenon gas is established in a range from 10% to 60% of the discharge cell gas.

21. The plasma display panel of claim 20, wherein at least a long gap and at least a short gap are formed together between the distal ends of the opposing discharge sustain electrode extension sections.

22. The plasma display device of claim 20, wherein the initiator discharge voltage is in a range from 180V to 210V.