Method of driving plasma display apparatus

Abstract

A method of driving a plasma display apparatus is disclosed. In the method, a first pulse of a negative polarity is applied to a scan electrode prior to a reset period. A second pulse is applied to the scan electrode during the reset period. The second pulse gradually rises from a first voltage to a second voltage with a first slop, and then gradually rises from the second voltage to a third voltage with a second slope. The first slope is different from the second slope.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The accompany drawings, which are included to provide a further understanding of the invention and are incorporated on and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 illustrates a plasma display apparatus according to embodiments;

FIG. 2 illustrates one example of the structure of a plasma display panel of the plasma display apparatus according to the embodiments;

FIG. 3 is a timing diagram for illustrating a time-division driving method with one frame being divided into a plurality of subfields;

FIG. 4 illustrates a driving waveform generated by a driving method of a plasma display apparatus according to a first embodiment;

FIG. 5 illustrates a driving waveform generated by a driving method of a plasma display apparatus according to a second embodiment;

FIG. 6 illustrates a driving waveform generated by a driving method of a plasma display apparatus according to a third embodiment; and

FIG. 7 illustrates a driving waveform generated by a driving method of a plasma display apparatus according to a fourth embodiment.

Claims

1. A method of driving a plasma display apparatus comprising: applying a first pulse of a negative polarity to a scan electrode prior to a reset period; andapplying a second pulse to the scan electrode during the reset period, the second pulse gradually rising from a first voltage to a second voltage with a first slop and then gradually rising from the second voltage to a third voltage with a second slope, wherein the first slope is different from the second slope.

2. The method of claim 1, wherein the first slope is more than the second slope.

3. The method of claim 1, further comprising applying a sustain pulse alternately having a positive voltage and a negative voltage to the scan electrode during a sustain period.

4. The method of claim 3, wherein the first pulse is the sustain pulse having the negative voltage applied to the scan electrode during the sustain period.

5. The method of claim 1, wherein the first pulse is a pre-reset pulse applied to the scan electrode during a pre-reset period prior to the reset period.

6. The method of claim 3, wherein the second voltage is substantially equal to the positive voltage of the sustain pulse.

7. The method of claim 1, wherein the first voltage is substantially equal to a ground level voltage.

8. The method of claim 1, wherein a difference between the third voltage and the second voltage is less than a difference between the second voltage and the first voltage.

9. The method of claim 1, wherein a ground level voltage is applied to a sustain electrode.

10. The method of claim 1, wherein a pulse having a predetermined voltage is applied to an address electrode during the application of the second pulse.

11. The method of claim 10, wherein the predetermined voltage is substantially equal to a data voltage of a data pulse applied to the address electrode during an address period.

12. A method of driving a plasma display apparatus comprising: applying a first pulse of a negative polarity to a scan electrode prior to a reset period; andapplying a second pulse gradually rising from a first voltage to a second voltage to the scan electrode during the reset period.

13. The method of claim 12, wherein the first voltage is substantially equal to a ground level voltage.

14. The method of claim 12, further comprising applying a sustain pulse alternately having a positive voltage and a negative voltage to the scan electrode during a sustain period.

15. The method of claim 14, wherein the first pulse is the sustain pulse having the negative voltage applied to the scan electrode during the sustain period.

16. The method of claim 12, wherein the first pulse is a pre-reset pulse applied to the scan electrode during a pre-reset period prior to the reset period.

17. The method of claim 12, wherein a ground level voltage is applied to a sustain electrode.

18. The method of claim 12, wherein a pulse having a predetermined voltage is applied to an address electrode during the application of the second pulse.

19. The method of claim 18, wherein the predetermined voltage is substantially equal to a data voltage of a data pulse applied to the address electrode during an address period.