Image display apparatus

An image display apparatus comprising:

• a display;
• and
• a power supply comprising:
• a converter including at least one switching element and configured to supply power to the display and a controller configured to control the converter;
• wherein the power supply is configured to output direct-current (DC) power by converting a level of input power based on a switching operation of the at least one switching element,
• wherein the power supply is further configured to operate in a first mode or a second mode,
• wherein in the first mode the switching operation is continuously performed by the at least one switching element, and in the second mode the switching operation is discontinuously performed by the at least one switching element,
• wherein the controller is further configured to:
• determine the mode of operation as the second mode based on a level of a load at the output terminal of the converter being equal to or lower than a first reference level;
• and
• determine the mode of operation as the first mode based on the level of the load at the output terminal of the converter being higher than the first reference level and equal to or lower than a second reference level higher than the first reference level.