Method for driving plasma display panel

• US 20040150354A1
• Filed: 12/31/2003
• Published: 08/05/2004
• Est. Priority Date: 06/18/1998
• Status: Active Grant

• Current Assignee: Maxell, Ltd.
• Original Assignee: Fujitsu Limited
• Inventors: Kanazawa, Yoshikazu, Asao, Shigeharu, Setoguchi, Noriaki
• Granted Patent: US 7,009,585 B2
• Time in Patent Office: Days
• US Class Current: 315/169.4
• CPC Class Codes: G09G 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2310/04 Partial updating of the display screen
• CPC Class Codes: G09G 2310/066 Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
• CPC Class Codes: G09G 2320/0238 Improving the black level
• CPC Class Codes: G09G 3/2022 using sub-frames
• CPC Class Codes: G09G 3/28 using luminous gas-discharge panels, e.g. plasma panels
• CPC Class Codes: G09G 3/2922 Details of erasing
• CPC Class Codes: G09G 3/2925 Details of priming
• CPC Class Codes: G09G 3/2927 Details of initialising
• CPC Class Codes: G09G 3/2932 Addressed by writing selected cells that are in an OFF state
• CPC Class Codes: G09G 3/296 Driving circuits for producing the waveforms applied to the driving electrodes
• CPC Class Codes: G09G 5/18 Timing circuits for raster scan displays specially adapted for television H04N ; synchronisation between the display unit and other display units, videodisc player G09G5/12

Abstract

Disclosed is a method for driving a plasma display panel in which a plurality of first electrodes and second electrodes are arranged parallel to each other, a plurality of third electrodes are arranged to cross the first and second electrodes, and discharge cells defined with areas in which the electrodes cross mutually are arranged in the form of a matrix. According to the driving method, a reset period is a period during which the distribution of wall charges in the plurality of discharge cells is uniformed. An addressing period is a period during which wall charges are produced in the discharge cells according to display data. A sustain discharge period is a period during which sustain discharge is induced in the discharge cells in which wall charges are produced during the addressing period. The driving method in accordance with the present invention comprises a step of applying a first pulse in which an applied voltage varies with time so as to induce first discharge in the lines defined by the first and second electrodes, and a step of applying a second pulse in which an applied voltage varies with time so as to induce second discharge as erase discharge in the lines defined by the first and second electrodes. These steps are carried out during the reset period.

Claims

1. A method for driving a plasma display panel which performs a reset discharge, an addressing discharge for writing display data and a sustain discharge for allowing a display image to glow, according to the display data, said reset discharge including a first discharge induced by a first pulse in which an applied voltage varies with time in a first direction and a second discharge induced by a second pulse in which an applied voltage varies with time in a second direction, wherein said second pulse is applied after said first pulse rises and falls.

2. A method for driving a plasma display panel according to claim 1, wherein said second pulse is applied after said first pulse falls but before an applied voltage of said first pulse reaches a potential that was attained before the application of said first pulse.

3. A method for driving a plasma display panel according to claim 1, wherein said second pulse is applied after said first pulse falls and an applied voltage of said first pulse reaches a potential that was attained before the application of said first pulse.

4. A method for driving a plasma display panel which performs a reset discharge, an addressing discharge for writing display data and a sustain discharge for allowing a display image to glow, according to the display data, said reset discharge including a first discharge induced by a first pulse in which an applied voltage varies with time in a positive direction and a second discharge induced by a second pulse in which an applied voltage varies with time in a negative direction;

wherein said first discharge is induced by said first pulse applied to a second electrode and which rises from a predetermined potential in the positive direction while a first electrode, arranged in parallel to the second electrode, is set to a lower potential than the predetermined potential.

5. A method for driving a plasma display panel, comprising:

producing a reset discharge including inducing a first discharge by a first pulse in which an applied voltage varies with time in a first direction and inducing a second discharge by a second pulse in which an applied voltage varies with time in a second direction, and wherein said second pulse is applied after said first pulse rises and falls.

6. A method for driving a plasma display panel according to claim 5, further comprising applying said second pulse after said first pulse falls but before an applied voltage of said first pulse reaches a potential that was attained before the application of said first pulse.

7. A method for driving a plasma display panel according to claim 5, further comprising applying said second pulse after said first pulse falls and an applied voltage of said first pulse reaches a potential that was attained before the application of said first pulse.

8. A method for driving a plasma display panel having first and second parallel electrodes, comprising:

producing a reset discharge, including inducing a first discharge by a first pulse in which an applied voltage varies with time in a positive direction and inducing a second discharge by a second pulse in which an applied voltage varies with time in a negative direction, the first discharge being induced by said first pulse applied to the second electrode and which rises from a predetermined potential in the positive direction while the first electrode is set to a lower potential than the predetermined potential; and

producing an addressing discharge to write display data and a sustain discharge to cause a display image to glow, according to the display data.