Drive control device, display device including the same, and drive control method
AssigneeSharp Kabushiki Kaisha
InventorsShinsuke Yokonuma, Hajime Washio
Life of this patent
Estimating the term…
Abstract
Low frequency drive is performed that provides, after a charging period for refreshing a screen, a pause period for pausing the refresh. The length of the charging period is, for example, one frame and the length of the pause period is, for example, 59 frames. When new image data IMD is transmitted from a host to an LCD driver IC during the pause period, an interrupt process where the pause period is allowed to transition to the charging period is performed immediately thereafter. By performing the interrupt process, without waiting for the pause period with the predetermined length to end, the next charging period where refresh based on the new image data IMD is to be performed starts.
Claims17
1-16. (canceled)
A drive control device for a display device, comprising a display control unit that performs control to refresh a screen of a display panel, based on image data received from an external source, the display panel including a plurality of scanning signal lines, a plurality of video signal lines, and a plurality of pixel formation portions provided at the respective intersections of the plurality of scanning signal lines and the plurality of video signal lines, wherein
- the display control unit:
- includes a storage unit for holding the image data;
- generates a drive control signal for driving the display panel such that a charging period for refreshing the screen and a pause period for pausing the screen refresh appear alternately, the pause period having a predetermined length greater than or equal to the charging period;
- and
- performs, when receiving the image data during the pause period, an interrupt process where the pause period is allowed to transition to the charging period, immediately after receiving the image data.
A drive control method that performs control to refresh a screen of a display panel, based on image data received from an external source, the display panel including a plurality of scanning signal lines, a plurality of video signal lines, and a plurality of pixel formation portions provided at the respective intersections of the plurality of scanning signal lines and the plurality of video signal lines, the method comprising:
- a holding step of holding the image data in a predetermined storage unit;
- a step of driving the plurality of scanning signal lines such that a charging period for refreshing the screen and a pause period for pausing the screen refresh appear alternately, the pause period having a predetermined length greater than or equal to the charging period;
- and
- an interrupting step of performing, when the image data is received during the pause period, an interrupt process where the pause period is allowed to transition to the charging period, immediately after receiving the image data.
Dependencies are inferred from the claim text.