Plasma display panel

Abstract

A plasma display panel according to the present invention is a plasma display panel including a screen with plural display lines, comprising a temperature detector which detects a temperature of at least a portion of the plasma display panel, and a display data adjustor which adjusts a line display data for one of the plural display lines, based on the detected temperature and information generated from each of the line display data.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG. 2 is a view showing an example configuration of a display line luminance difference corrector in FIG. 1;

FIG. 3 is a view showing an example configuration of a gain control unit in FIG. 2;

FIG. 4 is a view showing an example configuration of the display line luminance difference corrector according to a second embodiment of the present invention;

FIG. 5 is a view showing an example configuration of a gamma control unit in FIG. 4;

FIG. 6 is a view showing an example temperature detection of a temperature detector in FIG. 1;

FIG. 7 is a view showing another example temperature detection of the temperature detector in FIG. 1;

FIG. 8 is a view showing an example configuration of a display load factor detecting circuit according to a third embodiment of the present invention;

FIG. 9 is a view showing an example configuration of the display load factor detecting circuit according to a fourth embodiment of the present invention;

FIG. 10 is a view showing an example configuration of a microprocessor and the temperature detector according to a fifth embodiment of the present invention;

FIG. 11 is a graph showing a relation between a line display load factor, a temperature and a gain coefficient;

FIGS. 12A and 12B are graphs showing another relation between the line display load factor, the temperature and the gain coefficient;

FIG. 13 is a graph showing a relation between the line display load factor, a display load factor of a single field and the gain coefficient;

FIG. 14 is a graph showing a relation between the line display load factor, a sustain pulse waveform and the gain coefficient;

FIG. 15 is a graph showing a relation between the line display load factor, deviation of display data in each display line and the gain coefficient;

FIG. 16 is a view showing in detail a plasma display panel, an X-electrode driving circuit, a Y-electrode driving circuit and an address electrode driving circuit in FIG. 1;

FIG. 17 is an exploded perspective view showing an example structure of the plasma display panel in FIG. 16; and

FIG. 18 is a view showing an example configuration of a single field of an image.

Claims

1. A plasma display panel including a screen with plural display lines, comprising: a temperature detector which detects a temperature of at least a portion of the plasma display panel; anda display data adjustor which adjusts a line display data for one of the plural display lines, based on the detected temperature and information generated from each of the line display data.

2. A plasma display panel according to claim 1, wherein the information generated from each of the line display data is information with respect to a line display load factor of the one of the plural display lines.

3. A plasma display panel according to claim 1, wherein the information generated from each of the line display data is a line display load factor of the one of the plural display lines.

4. A plasma display panel according to claim 1, wherein the display data adjustor adjusts the line display data by controlling a gain of the line display data.

5. A plasma display panel according to claim 1, wherein the display data adjustor adjusts the line display data by gamma-correcting the line display data.

6. A plasma display panel according to claim 2, wherein the display data adjustor adjusts the line display data to increase luminance of the display line depending on an increase of the line display load factor.

7. A plasma display panel according to claim 6, wherein the display data adjustor adjusts an increase rate of luminance of the display line depending on the temperature.

8. A plasma display panel according to claim 4, wherein the gain increases depending on an increase of the line display load factor.

9. A plasma display panel according to claim 8, wherein a gain of a larger line display load factor is larger than a gain of a smaller line display load factor.

10. A plasma display panel according to claim 4, wherein an increase rate of the gain increases depending on an increase of the temperature.

11. A plasma display panel according to claim 10, wherein an increase rate of a higher temperature is larger than an increase rate of a lower temperature.

12. A plasma display panel according to claim 1, wherein the temperature detector detects a temperature of one of scan electrode, a sustain electrode and the plasma display panel.

13. A plasma display panel according to claim 4, wherein the gain has a linear characteristic with respect to the display load factor of the display line.

14. A plasma display panel according to claim 4, wherein the gain has a non-linear characteristic with respect to the display load factor of the display line.

15. A plasma display panel according to claim 4, wherein the gain changes from a linear characteristic to a non-linear characteristic with respect to the display load factor as the temperature increases.

16. A plasma display panel according to claim 4, wherein the gain has a non-linear characteristic with respect to the display load factor of the display line, and the non-linear characteristic has a larger change rate per unit of time as the temperature increases.

17. A plasma display panel including plural display lines which displays an image in a single field having plural subfields utilizing display data, comprising: a display load factor detector which detects a display load factor of one of the single field and at least some of the subfields included in the single field; anda display data adjustor which adjusts a line display data for one of the plural display lines, based on the detected display load factor and information generated from each of the line display data.

18. A plasma display panel according to claim 17, wherein the information generated from each of the line display data is information with respect to a line display load factor of the one of the plural display lines.

19. A plasma display panel including a screen with plural display lines, comprising: an elapsed time detector which detects an elapsed time from the supply of power for the display panel; anda display data adjustor which adjusts a line display data for one of the plural display lines, based on the detected elapsed time and information generated from each of the line display data.

20. A plasma display panel according to claim 19, wherein the information generated from each of the line display data is information with respect to a line display load factor of the one of the plural display lines.