Image signal processing apparatus and image signal processing method

An image signal processing apparatus comprising:

• an input terminal to which a first image signal of a first standard and a second image signal of a second standard are compatibly input, the input terminal in accordance with the first standard;
• a display mode storage module configured to store a first display mode used when the first image signal is input to the input terminal and a second display mode used when the second image signal is input to the input terminal;
• a detection module configured to determine whether the image signal input to the input terminal is of the first image signal or the second image signal;
• and
• an image signal output module configured to generate, if the detection module determines that the first image signal is input to the input terminal, an image signal to be displayed in the first display mode by generating image data using signal processing in accordance with the first standard, and to generate, if the detection module determines that the second image signal is input to the input terminal, an image signal to be displayed in the second display mode by generating image data using signal processing in accordance with the second standard, and the image signal output module configured to output the generated image signal.