Plasma display and method for driving the same

• US 7,023,403 B2
• Filed: 10/26/2001
• Issued: 04/04/2006
• Est. Priority Date: 01/19/2001
• Status: Expired due to Fees

• Current Assignee: Fujitsu Hitachi Plasma Display Limited (Hitachi, Ltd.)
• Original Assignee: Fujitsu Hitachi Plasma Display Limited (Hitachi, Ltd.)
• Inventors: Kishi, Tomokatsu, Ito, Eiji, Takamori, Takahiro, Setoguchi, Noriaki
• Primary Examiner(s): Mengistu, Amare
• Application Number:
  US09/983,945
• Publication Number:
  US 20020097200A1
• Time in Patent Office: 1,621 Days
• Field of Search: 345/55, 345/60, 345/67, 345/63, 345/89, 345/690, 3151691-1694
• US Class Current: 345/60
• CPC Class Codes: G09G 2310/0218 with collection of electrodes in groups for n-dimensional addressing
• CPC Class Codes: G09G 2320/0228 Increasing the driving margin in plasma displays
• CPC Class Codes: G09G 2320/041 Temperature compensation
• CPC Class Codes: G09G 3/2932 Addressed by writing selected cells that are in an OFF state

Abstract

A plasma display includes address electrodes for scanning and addressing display cells, and scan electrodes for establishing an address discharge between the address electrodes and the scan electrodes by addressing. The display also includes common electrodes for establishing a sustain discharge between the scan electrodes and the common electrodes to display an image at the display cells, and a scan driver for supplying a voltage to the scan electrodes so as to scan display cells upon addressing during divided periods. Upon addressing, the scan driver varies the potential of a scan electrode adjacent to the scan electrode that corresponds to the addressed address electrode.

Claims

1. A plasma display comprising:

a plurality of scan electrodes;

a plurality of address electrodes to establish address discharges between said address electrodes and said scan electrodes during an address period;

a plurality of common electrodes to establish sustain discharges between said scan electrodes and said common electrodes to display an image; and

a scan driver to supply voltages to scan the plurality of the scan electrodes during the address period, said address period is divided into first second half address, wherein said scan driver scans said scan electrodes in individual succession and, during the first half address period, when scanning a selected scan electrode and changing the potential of an even line scan electrodes thereof, said scan driver varies the potentials of respective adjacent scan electrodes in correspondence with the changed potential of the scanned and selected scan electrode.

2. The display according to claim 1, wherein said scan driver varies potentials of both scan electrodes adjacent to said selected scan electrode that is being scanned.

3. The display according to claim 1, wherein said scan driver varies the potentials of the scan electrodes adjacent to the common electrode to establish sustain discharge with said selected scan electrode that is being scanned.

4. The display according to claim 3, wherein, during the address period, said scan driver adjusts the potentials of said scan electrodes adjacent to said selected scan electrode that is being scanned to ground potentials.

5. The display according to claim 4, wherein, during the address period, said scan driver varies the potentials of said adjacent scan electrodes adjacent to said selected scan electrode that is being scanned from said positive potentials to said ground potentials.

6. The display according to claim 5, wherein, during the address period, said scan driver adjusts said selected scan electrode that is being scanned to negative potentials.

7. The display according to claim 6, further comprising:

a common electrode driver to adjust the potential of the common electrode to the positive potential, said common electrode serving to establish said sustain discharges with the selected scan electrode that is being scanned during the address period.

8. The display according to claim 7, wherein said scan driver adjusts a potential of the selected scan electrode that is being scanned to the negative potential during the address period, and, thereafter, holds the potential of said selected scan electrode that is being scanned at said ground potential until ending of scanning of remaining scan electrodes.

9. The display according to claim 5, wherein, during the address period, said scan driver varies the potentials of said adjacent scan electrodes adjacent to said selected scan electrode, which is being scanned, to ground potentials.

10. The display according to claim 9, wherein, during the address period, said scan driver varies the potentials of said adjacent scan electrodes adjacent to said selected scan electrode that is being scanned from said positive potentials to said ground potentials.

11. The display according to claim 10, wherein, during the address period, said scan driver adjusts the potential of the selected scan electrode that is being scanned to a negative potential.

12. The display according to claim 1, wherein said scan driver supplies a voltage to said scan electrodes so as to scan the plurality of scan electrodes during two split periods during the address period.

13. The display according to claim 12, wherein said scan driver divides display lines into even-numbered lines and odd-numbered lines for scanning.

14. A method of driving a plasma display comprising a plurality of scan electrodes, a plurality of address electrodes establishing address discharges between said address electrodes and said scan electrodes by addressing, and a plurality of common electrodes establishing sustain discharges between said scan electrodes and said common electrodes to display an image at display cells, said method comprising;

a plurality of address electrodes to establish address discharges between said address electrodes and said scan electrodes during an address period;

said address period is divided into first and second half address,

scanning, and thereby selecting, said scan electrodes to be scanned in individual succession; and

during an address period, when scanning a selected scan electrode the first half address period and changing the potential of an even line scan electrodes thereof, varying the potentials of respective adjacent scan electrodes in correspondence with the changed potential of the scanned and selected scan electrode.

15. The method according to claim 14, wherein said potential of said adjacent scan electrode adjacent to said scan electrode that is being scanned is varied from positive potentials to ground potentials.

16. A plasma display comprising:

a plurality of scan electrodes;

a plurality of address electrodes to establish address discharges between respective ones of the address electrodes and of the scan electrodes during an address period;

a plurality of common electrodes to establish sustain discharges between respective ones of the scan electrodes and of the common electrodes to display an image at display cells; and

said address period is divided into first and second half address a scan driver to supply a voltage to the plurality of scan electrodes so as to scan the plurality of the scan electrodes in individual secession and, during an address period when scanning a selected scan electrode of the first half of address period and changing the potential thereof, said scan driver varies the potentials of respective adjacent scan electrodes in correspondence with the changed potential of an even line scan electrodes scanned and selected scan electrode and, where scanning a selected scan electrode.

17. A method of driving a plasma display comprising a plurality of scan electrodes, a plurality of address electrodes to establish address discharges between respective ones of the address electrodes and the scan electrodes by addressing, and a plurality of common electrodes to establish sustain discharges between respective ones of the scan electrodes and of the common electrodes to display an image at display cells, the method comprising:

an address period is divided into first and second half address

scanning said scan electrodes in individual session and during an address period, when scanning a selected scan electrode of the first half of address period and changing the potential of an even line scan electrodes thereof, varying the potentials of respective adjacent scan electrodes in correspondence with the changed potential of the scanned and selected scan electrode.