Display device and operating method for display device

Abstract

A display device includes a connection port, a determination circuit, a processor, and a tips circuit. In response to the connection port being connected to a transmission line, the determination circuit provides a first status signal, determines a power supply type of the transmission line, and provides a power supply type status value according to the power supply type. The processor reads the power supply type status value according to the first status signal, determines whether the power supply type meets an expected power supply type according to the power supply type status value, and provides a power supply type tips signal in response to the power supply type not meeting the expected power supply type. The tips circuit controls the display device to display a power supply type prompt image in response to the power supply type tips signal. An operating method for a display device is also disclosed.

Dependencies are inferred from the claim text.