Plasma display panel driving

Abstract

A plasma display panel and a method of driving the same are disclosed. The method of driving the plasma display panel includes applying a first pulse to the scan electrode during a reset period, applying a third pulse wherein the third pulse comprises a rising period and a maintaining period, and the rising period ranges from about 75 ns to about 800 ns, applying a fourth pulse, and a voltage difference between the lowest voltage level of the fourth pulse and the lowest voltage level of the second pulse ranges from 5V to 50V, applying a plurality of pulses to the scan electrode, and wherein the upper dielectric layer and the lower dielectric layer have Pb whose amount is equal to or less than 1000 ppm, respectively.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiment of the invention will be described in detail with reference to the following drawings in which like numerals refer to like elements.

FIGS. 1 a and 1b illustrate a data pulse according to a method of driving a related art plasma display panel;

FIG. 2 illustrates a frame for representing gray level of an image in a method of driving a plasma display panel according to an embodiment of the present invention;

FIG. 3 illustrates a driving waveform of a frame in the method of driving the plasma display panel according to the embodiment of the present invention;

FIGS. 4 a and 4b are a diagram for explaining in detail a fifth pulse;

FIG. 5 is a diagram for explaining in detail a third pulse;

FIG. 6 is a diagram for explaining in detail a fourth pulse;

FIG. 7 illustrates an example of the structure of the plasma display panel to which the driving method according to the embodiment of the present invention is applied;

FIG. 8 illustrates the structure of each of a scan electrode and a sustain electrode;

FIGS. 9 a to 9c illustrate another structure of each of the scan electrode and the sustain electrode;

FIG. 10 illustrates a bus electrode;

FIG. 11 illustrates the scan electrode or the sustain electrode comprising a bus electrode;

FIGS. 12 a and 12b illustrate the structure of a black layer for preventing the generation of reflection light caused by the bus electrode;

FIGS. 13 a to 13c illustrate another structure of the black layer;

FIG. 14 illustrates a front substrate of the plasma display panel to which the driving method according to the embodiment of the present invention is applied;

FIGS. 15 a and 15b illustrate a method of manufacturing the plasma display panel using the front substrate with the different thickness;

FIG. 16 illustrates a function of a depressed portion;

FIG. 17 illustrates a case where a film-type filter is formed on the front substrate of the plasma display panel to which the driving method according to the embodiment of the present invention is applied;

FIG. 18 illustrates an example of the configuration of a circuit comprising an inductor having an energy recovery function;

FIGS. 19 a to 19e illustrate an operation of the circuit comprising the inductor of FIG. 18; and

FIG. 20 illustrates a PDP television set comprising the plasma display panel to which the driving method according to the embodiment of the present invention is applied.

Claims

1. A method of driving a plasma display panel comprising a front substrate on which a scan electrode, a sustain electrode and an upper dielectric layer are formed, and a rear substrate on which an address electrode intersecting the scan electrode and the sustain electrode and a lower dielectric layer are formed, during a sub-field in a frame for displaying a image, comprising: applying a first pulse in which an applied voltage varies with time until reaching a first voltage level to the scan electrode during a reset period, thereafter applying a second pulse in which an applied voltage varies with time until reaching a second voltage level to the scan electrode during the reset period wherein the second pulse has a polarity opposite to a polarity of the highest voltage level of the first pulse;applying a third pulse corresponding to a data pulse to the address electrode through a first circuit comprising an inductor during an address period wherein the third pulse comprises a rising period and a maintaining period, and the rising period ranges from about 75 ns to about 800 ns;applying a fourth pulse to the scan electrode during the address period, wherein a portion of the fourth pulse is overlapped with at least a portion of the third pulse, the lowest voltage level of the fourth pulse is lower than the lowest voltage level of the second pulse, and a voltage difference between the lowest voltage level of the fourth pulse and the lowest voltage level of the second pulse ranges from 5V to 50V;applying a plurality of pulses to the scan electrode through a second circuit comprising at least one inductor during a sustain period for emitting light; andapplying a plurality of pulses to the sustain electrode through a third circuit comprising at least one inductor during the sustain period,wherein the upper dielectric layer and the lower dielectric layer have Pb whose amount is equal to or less than 1000 ppm, respectively.

2. The method of claim 1, wherein a fifth is applied to the sustain electrode during the application of the first pulse in the reset period.

3. The method of claim 2, wherein the fifth pulse has a negative voltage level.

4. The method of claim 3, wherein the fifth pulse has a voltage varying with time.

5. The method of claim 3, wherein the voltage of the fifth pulse remains constant.

6. The method of claim 1, wherein at least one of the plurality of pulses applied to the sustain electrode during the sustain period is substantially synchronized with at least one of the plurality of pulses applied to the scan electrode during the sustain period.

7. The method of claim 1, wherein the scan electrode comprises a projecting portion including a first portion, a second portion wider than a horizontal width of the first portion, and a third portion wider than the horizontal width of the second portion.

8. The method of claim 7, wherein the width of at least one of the first portion or the second portion gradually widens toward the middle portion of a discharge cell.

9. The method of claim 1, wherein the scan electrode comprises a bus electrode.

10. The method of claim 1, wherein an inner surface of the front substrate comprises a portion with a different thickness.

11. The method of claim 1, wherein a film-type filter is formed on an external surface of the front substrate.

12. The method of claim 1, wherein a black layer is formed between the scan electrodes OR between the sustain electrodes, or between the scan electrode and the sustain electrode.

13. The method of claim 12, wherein a portion of the scan electrode and a portion of the sustain electrode overlap the black layer.

14. The method of claim 1, wherein a dielectric layer comprising a portion with a different thickness is formed on the inner surface of the front substrate.

15. The method of claim 1, wherein at least one of the first, second or third circuits has an energy recovery function.

16. The method of claim 1, wherein the plasma display panel further comprises a barrier rib have Pb whose amount is equal to or less than 1,000 ppm.

17. A plasma display panel included in a PDP television set comprising or electrically connected to a harddisk drive for storing a video data and an audio data, comprising: a scan electrode where a first p pulse is applied, wherein the first pulse has a voltage varying with time until reaching a first voltage level during a reset period,thereafter, a second pulse is applied wherein the second pulse has a voltage varying with time until reaching a second voltage level,a fourth pulse is applied during an address period, and a plurality of pulses are applied through a second circuit comprising at least one inductor during a sustain period for emitting light;an address electrode where a third pulse corresponding to a data pulse is applied through a first circuit comprising an inductor during the address period, wherein the third pulse comprises a rising period and a maintaining period, and the rising period ranges from about 75 ns to about 800 ns; anda sustain electrode where a plurality of pulses are applied through a third circuit comprising at least one inductor during the sustain period,wherein a polarity of the first pulse is opposite to a polarity of the second pulse,a portion of the fourth pulse is overlapped with at least a portion of the third pulse,the lowest voltage level of the fourth pulse is lower than the lowest voltage level of the second pulse, anda difference between the lowest voltage level of the fourth pulse and the lowest voltage level of the second pulse ranges from 5V to 50V.

18. The plasma display panel of claim 17, wherein the scan electrode comprises a projecting portion, and the projecting portion comprises a first portion, a second portion wider than a horizontal width of the first portion, and a third portion wider than the horizontal width of the second portion.

19. The plasma display panel of claim 17, wherein the scan electrode comprises a bus electrode.