Display driving circuit configured to perform driving in various modes and driving method thereof

A method that is executed by a display device, the method comprising:

• receiving display mode information and an image signal from a host;
• in response to the display mode information received from the host being changed,
• retrieving driving information corresponding to the changed display mode information from a memory, the memory storing a plurality of pieces of driving information corresponding to a plurality of display mode information regarding a method of processing the image signal,
• wherein the plurality of pieces of driving information include information related to display driving timing to drive a display panel included in the display device, and
• writing the retrieved driving information in a buffer,
• wherein the changing of the display mode information is performed during a front porch interval of a vertical blanking period before generating a vertical synchronization signal for a current frame;
• and
• converting the image signal into image data based on the driving information written in the buffer.

A display system comprising:

• a host configured to generate display mode information based on a user input or an external condition and to generate an image signal;
• a signal controller including a buffer, the signal controller configured to
• receive the display mode information and the image signal from the host, and
• in response to the display mode information being changed,
• retrieve one piece of driving information corresponding to the changed display mode information,
• write the retrieved one piece of driving information in the buffer, wherein the retrieving and the writing of the one piece of driving information are performed during a front porch interval of a vertical blanking period before a vertical synchronization signal for a current frame is generated, and
• convert the image signal into image data by using the one piece of driving information written in the buffer;
• a memory including a plurality of pieces of driving information corresponding to a plurality of display mode information regarding a method of processing the image signal, wherein
• the plurality of pieces of driving information include information related to display driving timing to drive a display panel, and
• the plurality of pieces of driving information include the one piece of driving information;
• a data driver configured to generate a plurality of data signals based on the image data;
• and
• the display panel configured to operate in response to the plurality of data signals received from the data driver.