Video display device, method of displaying connectors, transmission-line state detection device, transmission line-state detection method and semiconductor integrated circuit

摘要

A video display device includes: connectors (101a-101c, 102a-102c, 103a-103c, 104) to which cables transmitting video signals are connected; a display panel (113) displaying video by the video signal inputted to the connector from an external device through the cable; a display control unit (105) displaying connector indications indicating the connectors on the display panel (113); a cable detection unit (115a-115c) outputting a step waveform signal to the connector and detecting connection/disconnection of the cable to the connector based on a reflected signal of the step waveform signal, and wherein the display control unit (105) changes the appearance of the connector indications displayed on the display panel (113) according to a detection output of the cable detection unit (115a-115c).