Display apparatus, display driving device and driving method

A driving method of a display driving device, comprising:

• receiving a data stream from a processor by an interface circuit of the display driving device, wherein the data stream comprises a display data frame and vertical synchronization information;
• in response to a display panel operating in a full panel display mode, receiving the display data frame containing a first resolution display data corresponding to an entire display area of the display panel from the interface circuit by a control circuit of the display driving device, and driving a plurality of data lines of the display panel based on the first resolution display data by the control circuit;
• and
• in response to the display panel operating in a first partial panel display mode, receiving the display data frame containing a second resolution display data corresponding to a first partial display area of the display panel from the interface circuit by the control circuit, but the display data frame does not comprise the display data corresponding to other display areas in the display panel except the first partial display area, thereby reducing a data size of the data stream transmitted from the processor to the interface circuit compared to the full panel display mode, and driving the plurality of data lines based on the second resolution display data by the control circuit, wherein a resolution of the second resolution display data is lower than a resolution of the first resolution display data.

A display apparatus comprising:

• a processor;
• a display panel;
• and
• a display driving device disposed to drive the display panel, wherein the display driving device is coupled to the processor to receive a data stream, the data stream comprises a display data frame and vertical synchronization information,
• in response to the display panel operating in a full panel display mode, the display data frame received by the display driving device from the processor contains a first resolution display data corresponding to an entire display area of the display panel, and the display driving device drives a plurality of data lines of the display panel based on the first resolution display data;
• and
• in response to the display panel operating in a first partial panel display mode, the display data frame received by the display driving device from the processor contains a second resolution display data corresponding to a first partial display area of the display panel, but does not contain a display data corresponding to other display areas in the display panel except the first partial display area, thereby reducing a data size of the data stream transmitted from the processor to the display driving device compared to the full panel display mode, and the display driving device drives the plurality of data lines based on the second resolution display data, wherein a resolution of the second resolution display data is lower than a resolution of the first resolution display data.