Plasma display device

Abstract

A plasma display device, including a first substrate and a second substrate opposed to each other, a first electrode and a second electrode arranged in parallel on one of the first and second substrates so as to enable a generation of a display discharge therebetween and a chassis which supports at least one of the first and second substrates. The first electrode is connected to the chassis without an interposition of a circuit for controlling the first electrode and is maintained at a constant potential.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a view showing a structural example of a plasma display device according to a first embodiment of the present invention;

FIG. 2 is a timing chart to explain operation examples during a reset period, an address period, and a sustaining period according to the present embodiment;

FIG. 3 is a cross section showing a structural example of the plasma display device according to the present embodiment;

FIG. 4 is a cross section showing a structural example of the plasma display device according to a second embodiment;

FIG. 5 is a cross section showing a structural example of the plasma display device according to a third embodiment;

FIG. 6 is a cross section showing a structural example of the plasma display device according to a fifth embodiment;

FIG. 7 is a perspective view showing a structural example of the plasma display device according to a sixth embodiment;

FIG. 8 is a view showing a structural example of a conductor according to a seventh embodiment;

FIG. 9 is a view showing a structural example of the plasma display device according to an eighth embodiment;

FIG. 10 is a view showing a structural example of the plasma display device according to a ninth embodiment;

FIG. 11 is a view showing a structural example of the plasma display device;

FIG. 12 is an exploded perspective view showing a structural example of the plasma display panel;

FIG. 13 is a timing chart to explain operation examples during a reset period, an address period, and a sustaining period;

FIG. 14 is a cross section showing a structural example of the plasma display device; and

FIG. 15 is a cross section showing a structural example of the plasma display device according to a fourth embodiment.

Claims

1. A plasma display device, comprising: a first substrate and a second substrate opposed to each other;a first electrode and a second electrode arranged in parallel on one of the first and second substrates so as to enable generation of a display discharge therebetween; anda chassis which supports at least one of the first and second substrates;wherein the first electrode is connected to the chassis without interposition of a circuit for controlling the first electrode and is maintained at a constant potential.

2. A plasma display device according to claim 1, wherein the first electrode is directly connected to the chassis, so as to enable a reduced impedance in a path between the first electrode and the chassis.

3. A plasma display device according to claim 1, further comprising: an electrode driving circuit applying a discharge voltage to the second electrode;wherein the second electrode is connected to the chassis via the electrode driving circuit, and the first electrode is directly connected to the chassis.

4. A plasma display device according to claim 1, wherein the first electrode is connected to the chassis without interposition of a circuit so as to maintain a voltage applied to the first electrode at a constant potential.

5. A plasma display device according to claim 1, wherein the constant potential is a ground potential.

6. A plasma display device according to claim 4, wherein the constant potential is a ground potential.

7. A surface discharge type AC color plasma display device, comprising: a front substrate and a rear substrate opposed to each other;a scan electrode and a sustain electrode arranged in parallel on the front substrate, and extending in a first direction;an address electrode arranged on the rear substrate, and extending in a second direction perpendicular to the first direction;an address electrode driving circuit applying a voltage to the address electrode;a scan electrode driving circuit applying a voltage to the scan electrode; anda chassis supporting at least the rear substrate;wherein the scan electrode is connected to the chassis via the scan electrode driving circuit to apply a discharge voltage to the scan electrode, and the sustain electrode is connected to the chassis without interposition of a circuit to control a voltage applied to the sustain electrode, and the sustain electrode is maintained at a constant potential.

8. A plasma display device according to claim 7, wherein the constant potential is a ground potential.

9. A plasma display device, comprising: a first substrate and a second substrate opposed to each other;a first electrode and a second electrode arranged in parallel on one of the first and second substrates so as to enable a generation of a display discharge therebetween; anda chassis which supports at least one of the first and second substrates;wherein the first electrode is connected to the chassis via a conductor and is maintained at a constant potential; andwherein the conductor is sandwiched between the first substrate and the chassis.

10. A plasma display device according to claim 9, wherein the first electrode is connected to the chassis without interposition of a circuit for controlling the first electrode and is maintained at a constant potential.

11. A plasma display device according to claim 9, further comprising: an electrode driving circuit applying a discharge voltage to the second electrode;wherein the second electrode is connected to the chassis via the electrode driving circuit.

12. A plasma display device according to claim 10, wherein the first electrode is connected to the chassis without interposition of a circuit to maintain a voltage applied to the first electrode at a constant potential.

13. A plasma display device according to claim 12, wherein the constant potential is a ground potential.

14. A plasma display device according to claim 12, wherein the second substrate is arranged between the first substrate and the chassis; andan end portion of the chassis is extended beyond an end of the second substrate so as to connect with the first electrode on the first substrate.

15. A plasma display device according to claim 9, wherein the second substrate is arranged between the first substrate and the chassis; andan end portion of the chassis is bent in the direction of the first substrate so as to connect with the first electrode on the first substrate.

16. A plasma display device according to claim 9, wherein the first electrode and the conductor are connected with a conductive adhesive member.

17. A plasma display device according to claim 9, wherein the conductor and the chassis are connected with a conductive adhesive member.

18. A plasma display device according to claim 9, wherein conductor is connected to the chassis by a screw.

19. A plasma display device according to claim 9, wherein the conductor is an elastic member.

20. A plasma display device according to claim 19, wherein the conductor is a conductive rubber member.

21. A plasma display device according to claim 19, wherein the conductor is a rubber member surrounded by a conductive film.

22. A plasma display device according to claim 19, wherein the conductor is a metal having elasticity at least in a portion connected to the first electrode side.

23. A plasma display device according to claim 9, further comprising: a filter arranged in front of the first substrate so as to shield electromagnetic waves,wherein the filter is directly connected to the chassis.

24. A plasma display device according to claim 9, further comprising: a filter arranged in front of the first substrate so as to shield electromagnetic waves,wherein the filter is connected to the chassis via the conductor.