Abstract: Techniques to switch between video display modes are described. An apparatus may include a graphics device to generate first synchronized timing signals with a first phase differential to indicate a first display mode for first display data, and to generate second synchronized timing signals with a second phase differential to indicate a second display mode for second display data. Other embodiments are described and claimed.

Abstract: A controller for switching the operation state of a transmitter portion sets a transmitter portion in which the data amount to be transmitted is larger than a predetermined amount to a high speed mode, sets a transmitter portion in which the data amount to be transmitted is below a predetermined amount and larger than zero to a low speed mode, and sets a transmitter portion in which the data amount to be transmitted is equal to zero to a sleep mode. The power consumption in the transmitter portion in which the data amount to be transmitted is small and the transmitter portion in which the data amount to be transmitted is equal to zero can be suppressed and thus the power consumption can be reduced.

Abstract: An apparatus which switches between video display modes, including a display panel having multiple display pixels formed in a matrix; a display controller coupled to the display panel and including a detector to detect a phase differential between received timing signals and output a synchronous determination signal, and a control signal generator coupled to the detector, the control signal generator to generate a first set of control signals corresponding to a first driving mode or a second set of control signals corresponding to a second driving mode in accordance with the synchronous determination signal, the first set of control signals to cause the display panel to display images in accordance with the first driving mode using a first set of selected display pixels, and the second set of control signals to cause the display panel to display images in accordance with the second driving mode using a second set of selected display pixels, with the second set having a number of selected display pixels differ