Image display device, electronic apparatuse using the same, display output control method for image display device, and output control program thereof

An image display device, comprising a display device main body which includes a display element for displaying prescribed image information to outside and a viewing angle changing element for setting to change display of image information on the display element at least from a wide vision display to a narrow vision display based on a changing command from the outside, wherein:

• the display device main body is provided with an operation state detection element which detects an operation state of the viewing angle changing element;
• the viewing angle changing element is provided with a narrow vision forcible setting module which operates to forcibly set the display of the display element to a narrow vision display state by a voltage forcible applying mechanism which applies a voltage to the viewing angle changing element, when the operation state detected by the operation state detection element is a fault state;
• the operation state detection element is formed by an electric current detection element which measures an electric current flown in the viewing angle changing element;
• and the fault judging module which judges whether or not there is a fault generated in the viewing angle changing element based on an electric current detected value acquired by the electric current detection element is provided;
• and
• the fault judging module comprises a storage section which stores desired electric current values flowing to the viewing angle changing element as reference electric current values, and compares the reference electric current values stored in the storage section with the electric current value detected by the electric current detection element to judge whether or not there is a fault generated in the viewing angle changing element.