PLASMA DISPLAY APPARATUS

Abstract

A plasma display apparatus is disclosed. In the plasma display apparatus, a data signal includes a voltage rising period during which the data signal gradually rises to a first voltage using an inductor, a voltage maintaining period during which the data signal is maintained at a second voltage higher than the first voltage, and a voltage falling period during which the data signal gradually falls to a voltage equal to or less than the second voltage. A magnitude of the first voltage is equal to or more than one half of a magnitude of the second voltage, and is less than the magnitude of the second voltage. A current flowing in the inductor ranges from zero ampere to a maximum current value of the inductor at a time when a voltage of the data signal is equal to the first voltage.

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 configuration of a plasma display apparatus according to one embodiment;

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

FIG. 3 illustrates a frame for achieving a gray level of an image displayed by the plasma display apparatus according to one embodiment;

FIG. 4 illustrates one example of an operation of the plasma display apparatus according to one embodiment during one subfield of a frame;

FIGS. 5 a to 5c illustrate another operation of the plasma display apparatus according to one embodiment;

FIG. 6 illustrates a data signal;

FIG. 7 illustrates one example of a configuration of a driver for supplying a data signal;

FIGS. 8 a to 8f illustrate one example of an operation of the driver of FIG. 7;

FIG. 9 illustrates a case where two data signals are supplied consecutively;

FIG. 10 illustrates a reason why two data signals are consecutively supplied on condition of FIG. 9; and

FIG. 11 illustrates another case where a first data signal and a second data signal are supplied consecutively.

Claims

1. A plasma display apparatus comprising: a plasma display panel including an address electrode; anda driver supplying a data signal to the address electrode during an address period,wherein the data signal includes a voltage rising period during which the data signal gradually rises to a first voltage using an inductor, a voltage maintaining period during which the data signal is maintained at a second voltage higher than the first voltage, and a voltage falling period during which the data signal gradually falls to a voltage equal to or less than the second voltage,wherein a magnitude of the first voltage is equal to or more than one half of a magnitude of the second voltage, and is less than the magnitude of the second voltage, andwherein a current flowing in the inductor ranges from zero ampere to a maximum current value of the inductor at a time when a voltage of the data signal is equal to the first voltage.

2. The plasma display apparatus of claim 1, wherein the magnitude of the first voltage ranges from 0.6 to 0.85 times the magnitude of the second voltage.

3. The plasma display apparatus of claim 1, wherein a length of the voltage rising period ranges from 0.05 to 0.4 times a sum of lengths of the voltage rising period, the voltage maintaining period, and the voltage falling period.

4. The plasma display apparatus of claim 3, wherein the length of the voltage rising period ranges from 0.08 to 0.35 times the sum of the lengths of the voltage rising period, the voltage maintaining period, and the voltage falling period.

5. The plasma display apparatus of claim 1, wherein the current flowing in the inductor ranges from 0.2 to 0.7 times the maximum current value of the inductor at the time when the voltage of the data signal is equal to the first voltage.

6. The plasma display apparatus of claim 1, wherein the voltage of the data signal is clamped to the second voltage at the time when the voltage of the data signal is equal to the first voltage.

7. The plasma display apparatus of claim 1, wherein the data signal includes a first data signal and a second data signal, and wherein when the first data signal and the second data signal are supplied consecutively, the first data signal falls to a third voltage higher than the lowest voltage supplied during a voltage rising period of the first data signal during a voltage falling period of the first data signal, and the second data signal gradually rises from the third voltage to a fourth voltage using the inductor during a voltage rising period of the second data signal.

8. The plasma display apparatus of claim 7, wherein a magnitude of the third voltage ranges from 0.1 to 0.7 times the magnitude of the second voltage.

9. The plasma display apparatus of claim 8, wherein the magnitude of the third voltage ranges from 0.25 to 0.45 times the magnitude of the second voltage.

10. The plasma display apparatus of claim 7, wherein the fourth voltage is different from the first voltage.

11. A plasma display apparatus comprising: a plasma display panel including an address electrode, anda driver supplying a data signal to the address electrode during an address period,wherein the data signal includes a voltage rising period during which the data signal gradually rises to a first voltage using an inductor, a voltage maintaining period during which the data signal is maintained at a second voltage higher than the first voltage, and a voltage falling period during which the data signal gradually falls to a voltage equal to or less than the second voltage,wherein a magnitude of the first voltage is equal to or more than one half of a magnitude of the second voltage, and is less than the magnitude of the second voltage, andwherein a current flowing in the inductor is more than zero ampere and is less than a maximum current value of the inductor at a time when a switch for supplying the second voltage is turned on.

12. The plasma display apparatus of claim 11, wherein the magnitude of the first voltage ranges from 0.6 to 0.85 times the magnitude of the second voltage.

13. The plasma display apparatus of claim 11, wherein a length of the voltage rising period ranges from 0.05 to 0.4 times a sum of lengths of the voltage rising period, the voltage maintaining period, and the voltage falling period.

14. The plasma display apparatus of claim 13, wherein the length of the voltage rising period ranges from 0.08 to 0.35 times the sum of the lengths of the voltage rising period, the voltage maintaining period, and the voltage falling period.

15. The plasma display apparatus of claim 11, wherein the current flowing in the inductor ranges from 0.2 to 0.7 times the maximum current value of the inductor at the time when the voltage of the data signal is equal to the first voltage.

16. The plasma display apparatus of claim 11, wherein the voltage of the data signal is clamped to the second voltage at the time when the voltage of the data signal is equal to the first voltage.

17. A plasma display apparatus comprising: a plasma display panel including an address electrode; anda driver supplying a data signal to the address electrode during an address period,wherein the data signal includes a first data signal and a second data signal,wherein the first data signal and the second data signal each include a voltage rising period, a voltage maintain9ng period, and a voltage falling period,wherein when the first data signal and the second data signal are supplied consecutively, the first data signal falls to a third voltage higher than the lowest voltage supplied during the voltage rising period of the first data signal during the voltage falling period of the first data signal, and the second data signal gradually rises from the third voltage to a fourth voltage using an inductor during the voltage rising period of the second data signal.

18. The plasma display apparatus of claim 17, wherein a magnitude of the third voltage ranges from 0.1 to 0.7 times a magnitude of the second voltage.

19. The plasma display apparatus of claim 18, wherein the magnitude of the third voltage ranges from 0.25 to 0.45 times the magnitude of the second voltage.

20. The plasma display apparatus of claim 18, wherein the fourth voltage is different from the first voltage.