Method for driving plasma display panel

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• selecting one display pulse waveform that corresponds to the detection result of the display ratio among plural types of display pulse waveforms for each subframe in accordance with a predetermined relationship between a display ratio and the plural types of display pulse waveforms;
• and
• applying a display pulse having the selected display pulse waveform to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• deciding a pulse having a first step-like waveform in which amplitude decreases between a leading edge and a trailing edge as a display pulse for a display of a subframe having a display ratio that is less than a set value;
• deciding a pulse having a second step-like waveform in which amplitude increases between a leading edge and a trailing edge as a display pulse for a display of a subframe having a display ratio that is larger than or equal to the set value;
• and
• applying the decided display pulse to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• deciding a pulse having a rectangular waveform as a display pulse for a display of a subframe having a display ratio that is less than a set value;
• deciding a pulse having a step-like waveform in which amplitude increases between a leading edge and a trailing edge and the maximum amplitude is larger than the amplitude of the rectangular waveform as a display pulse for a display of a subframe having a display ratio that is larger than or equal to the set value;
• and
• applying the decided display pulse to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• deciding a pulse having a rectangular waveform as a display pulse for a display of a subframe having a display ratio that is less than a set value;
• deciding a pulse having a step-like waveform in which amplitude decreases between a leading edge and a trailing edge for a display of a subframe having a display ratio that is larger than or equal to the set value;
• and
• applying the decided display pulse to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display-ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• deciding a pulse having a step-like waveform in which amplitude changes from a first value to a second value that is smaller than the first value between a leading edge and a trailing edge as a display pulse for a display of a subframe having a display ratio that is less than a set value;
• deciding a pulse having a rectangular waveform whose amplitude is larger than the second value as a display pulse for a display of a subframe having a display ratio that is larger than or equal to the set value;
• and
• applying the decided display pulse to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• deciding a pulse having a step-like waveform in which amplitude changes from a first value to a second value that is smaller than the first value between a leading edge and a trailing edge as a display pulse for a display of a subframe having a display ratio that is less than a first set value;
• deciding a pulse having a rectangular waveform whose amplitude is larger than or equal to the second value as a display pulse for a display of a subframe having a display ratio that is larger than or equal to the first set value and less than a second set value that is larger than the first set value;
• deciding a pulse having a second step-like waveform in which amplitude increases between the leading edge and the trailing edge as a display pulse for a display of a subframe having a display ratio that is larger than or equal to the second set value;
• and
• applying the decided display pulse to all cells so as to display the corresponding subframe.

A method for driving a plasma display panel comprising:

• generating wall voltage in cells to be lighted within a screen so that the wall voltage is higher than that in other cells;
• converting a frame into a plurality of subframes;
• detecting a display ratio that is a ratio of the number of cells to be lighted to the number of cells for each of the plural subframes;
• determining the number of discharge times for each subframe so that a luminance ratio between subframes becomes a set ratio and power consumption for one frame becomes less than or equal to a set value for each of plural combinations in waveform selection for selecting one of plural types of display pulse waveforms for each subframe, in accordance with a relationship among each of predetermined plural types of the display pulse waveforms, a display ratio, luminance in one discharge and power consumption in one discharge;
• calculating luminance of one frame for each of combinations of the determined waveform selection and the number of discharge times;
• and
• applying a display pulse having one of plural types of the display pulse waveforms to the cell the corresponding times in a display of each subframe so as to match the combination of the waveform selection having the highest luminance of one frame and the number of discharge times.