Method of driving plasma display apparatus

• US 20060214882A1
• Filed: 03/21/2006
• Published: 09/28/2006
• Est. Priority Date: 03/22/2005
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Min Soo, Lee, Sung Im, Jung, Kyoung Jin, Cho, Ki Duck
• Granted Patent: US 8,044,883 B2
• Time in Patent Office: Days
• US Class Current: 345/60
• CPC Class Codes: G09G 2310/066 Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
• CPC Class Codes: G09G 2320/0228 Increasing the driving margin in plasma displays
• CPC Class Codes: G09G 2320/0238 Improving the black level
• CPC Class Codes: G09G 3/2927 Details of initialising

Abstract

A method of driving a plasma display apparatus is provided. The method of driving the plasma display apparatus includes applying a first pulse to a first electrode, applying a second pulse to a second electrode after the application of the first pulse, and applying a falling ramp pulse to the first electrode after the application of the second pulse.

Claims

1. A method of driving a plasma display apparatus comprising:

applying a first pulse to a first electrode;

applying a second pulse to a second electrode after the application of the first pulse; and

applying a falling ramp pulse to the first electrode after the application of the second pulse.

2. The method of claim 1, wherein the first pulse and the second pulse overlap in some portion of the duration of time of the first pulse and the second pulse.

3. The method of claim 1, wherein a total period equals the duration of time from an application start time point of the first pulse to an application finish time point of the second pulse, and the total period comprises a first period, a second period and a third period,

wherein the first period equals the duration of time when the first pulse and the second pulse do not overlap,

wherein the second period which follows the first period, equals the duration of time when the first pulse and the second pulse overlap, and

wherein the third period which follows the second period, equals the duration of time when the first pulse and the second pulse do not overlap.

4. The method of claim 1, wherein the width of the first pulse ranges from 0.1 μ

s to 2 μ

s.

5. The method of claim 3, wherein the duration of the first period ranges from 0.1 μ

s to 2 μ

s.

6. The method of claim 3, wherein the duration of the first period is substantially equal to the duration of the third period.

7. The method of claim 1, wherein the application of a last sustain pulse to the second electrode occurs before the application of the first pulse, and magnitudes of the peak voltages of the last sustain pulse, the first pulse and the second pulse are equal to one another.

8. The method of claim 1, wherein each of the first pulse and the second pulse is applied two or more times.

9. A method of driving a plasma display apparatus comprising:

applying a sustain pulse to a first electrode;

applying a first pulse of the width less than the width of the sustain pulse to a second electrode; and

applying a second pulse of the width less than the width of the sustain pulse to the first electrode after the application of the first pulse.

10. The method of claim 9, wherein the first pulse and the second pulse overlap in some portion of the duration of time of the first pulse and the second pulse.

11. The method of claim 9, further comprising applying a falling ramp pulse to the second electrode after the application of the second pulse.

12. The method of claim 9, wherein the width of the first pulse is substantially equal to the width of the second pulse.

13. The method of claim 9, wherein the width of the first pulse or the second pulse ranges from 0.1 μ

s to 2 μ

s.

14. The method of claim 9, wherein the polarities of the peak voltages of the sustain pulse, the first pulse and the second pulse are equal to one another.

15. The method of claim 9, wherein the magnitudes of the peak voltages of the sustain pulse, the first pulse and the second pulse are equal to one another.

16. A method of driving a plasma display apparatus comprising:

applying a first pulse to a first electrode; and

applying a second pulse to a second electrode after the passage of 0.1 μ

s to 2 μ

s from an application time point of the first pulse,

wherein the first pulse and the second pulse overlap.

17. The method of claim 16, wherein a total period equals the duration of time from an application start time point of the first pulse to an application finish time point of the second pulse, and the total period comprises a first period, a second period and a third period,

wherein the first period equals the duration of time when the first pulse and the second pulse do not overlap,

wherein the second period which follows the first period, equals the duration of time when the first pulse and the second pulse overlap, and

wherein the third period which follows the second period, equals the duration of time when the first pulse and the second pulse do not overlap.

18. The method of claim 16, wherein the duration of the first period is substantially equal to the duration of the third period.

19. The method of claim 16, wherein the application of a last sustain pulse to the second electrode occurs before the application of the first pulse;

and

the polarities of the peak voltages of the last sustain pulse, the first pulse and the second pulse are equal to one another.

20. The method of claim 16, wherein the application of the last sustain pulse to the second electrode occurs before the application of the first pulse;

and

the magnitudes of the peak voltages of the last sustain pulse, the first pulse and the second pulse are equal to one another.