Display apparatus and display driving method for enhancing grayscale display capable of low luminance portion without increasing driving time
View Patent ↗A driving method for a plasma display apparatus having address electrodes, scan electrodes and common electrodes and displaying one field of image by using subfields is provided. The driving method includes one specific subfield is arranged to be turned ON early in the one field and always turned ON at luminance level higher than input luminance level “0”, and the specific subfield has a least luminance weight and does not have resetting.
1. A driving method for a plasma display apparatus having address electrodes, scan electrodes and common electrodes and displaying one field of image by using a plurality of subfields,
wherein one specific subfield is arranged to be turned ON early in the one field and turned ON at all input luminance levels, which correspond to each pixel, being higher than input luminance level “0”, the specific subfield has a least luminance weight and does not have a resetting period, and
a preprocessing placed before an addressing period is provided in the specific subfield and a waveform having a voltage value decreasing with time is applied in the preprocessing.
2. The driving method for a plasma display apparatus according to claim 1 , wherein the specific subfield is arranged as a first subfield of the plurality of subfields to be turned ON in the one field.
3. The driving method for a plasma display apparatus according to claim 1 , wherein the specific subfield is arranged as a second subfield of the plurality of subfields to be turned ON in the one field.
4. The driving method for a plasma display apparatus according to claim 1 , wherein a waveform having a voltage value decreasing with time is applied in the preprocessing without applying a waveform having a voltage value increasing with time to be applied in a resetting period in a subfield other than the specific subfield.
5. The driving method for a plasma display apparatus according to claim 2 , wherein a waveform having a voltage value decreasing with time is applied in the preprocessing without applying a waveform having a voltage value increasing with time to be applied in a resetting period in a subfield other than the specific subfield.
6. The driving method for a plasma display apparatus according to claim 3 , wherein a waveform having a voltage value decreasing with time is applied in the preprocessing without applying a waveform having a voltage value increasing with time to be applied in a resetting period in a subfield other than the specific subfield.
7. The driving method according to claim 1 , wherein the specific subfield does not have a sustaining period.
8. The driving method according to claim 2 , wherein the specific subfield does not have a sustaining period.
9. The driving method according to claim 3 , wherein the specific subfield does not have a sustaining period.