Drive unit and drive method of light-emitting display panel

A drive method of an active matrix type light-emitting display panel having a plurality of light-emitting elements which are disposed at a plurality of intersecting positions where a plurality of data electrode lines, a plurality of scan electrode lines, and a plurality of erase electrode lines intersect and the light emission of which light-emitting display panel is controlled by drive circuits, respectively, a data driver for supplying image data to the respective data electrode lines, a first scan driver for supplying a scan signal to the respective scan electrode lines, and a second scan driver for supplying an erase signal based on a partial display pattern to the respective erase electrode lines, the drive method executing:

• a step of setting the erase data based on the partial display pattern to the second scan driver;
• a step of executing a partial display based on the image data supplied from the data driver when a display region is scanned with the scan signal from the first scan driver;
• and
• a step of forcibly extinguishing the light-emitting elements corresponding to a non-display region based on the erase data set to the second scan driver when a scan is executed from the display region to the non-display region.

A drive unit of an active matrix type light-emitting display panel having a plurality of light-emitting elements which are disposed at a plurality of intersecting positions where a plurality of data electrode lines and a plurality of scan electrode lines intersect and the light emission of which light-emitting display panel is controlled by drive circuits, respectively, comprising:

• a data driver for supplying image data to the respective data electrode lines;
• a scan driver for sequentially supplying a scan signal to the respective scan electrode lines;
• and
• control means for stopping the operation of the data driver when a partial display drive for controlling the light emission of a part of the effective light-emitting elements in the display panel is executed and when the scan driver scans a non-display region;
• wherein the data driver and the scan driver are disposed on the same substrate constituting the display panel together with the respective drive circuits and the respective light-emitting elements corresponding thereto, and
• wherein the drive circuits include control transistors for transmitting image data supplied from the data driver based on a scan signal supplied from the scan driver and drive transistors for supplying a drive current to the light-emitting elements based on the image data transmitted by the control transistors.

A drive unit of an active matrix type light-emitting display panel having a plurality of light-emitting elements which are disposed at a plurality of intersecting positions where a plurality of data electrode lines and a plurality of scan electrode lines intersect and the light emission of which light-emitting display panel is controlled by drive circuits, respectively, comprising:

• a data driver for supplying image data to the respective data electrode lines;
• a scan driver for sequentially supplying a scan signal to the respective scan electrode lines;
• control means for stopping the operation of the data driver when a partial display drive for controlling the light emission of a part of the effective light-emitting elements in the display panel is executed and when the scan driver scans a non-display region;
• and
• black data set means for capturing black data for controlling the light-emitting elements in a non-lighting state for at least one horizontal period when a scan is executed from a display region to a non-display region while the partial display drive is being executed to control the light emission of a part of the effective light-emitting elements in the display panel;
• wherein the scan driver includes a shift resister for outputting a scan signal to the respective scan electrode lines by sequentially shifting up it based on a clock signal.