DISPLAY APPARATUS, UPGRADING APPARATUS AND CONTROL METHOD OF THE SAME, AND DISPLAY SYSTEM

摘要

PURPOSE: A display device, an upgrade device, a controlling method thereof, and a display system thereof are provided to change set values of menu image items by transmitting operating time information of a display unit to the upgrade device and corresponding to the operation time information of the display unit which is saved in a saving unit when upgrading by the upgrade device. CONSTITUTION: An image processing unit (120) processes image signals received by an image source (300). An upgrade device (100) for an upgrade of image process is connected to a connection unit (110). When upgrading by the upgrade device, a control unit (160) transmits operation time information of a display unit (130) to the upgrade device to change set values of menu image items by corresponding to the operation time information of the display unit which is stored in a storage unit (150). [Reference numerals] (110) Connection unit; (120) Image processing unit; (130) Display unit; (140) User input unit; (150) First storage unit; (160) First control unit; (210) Second contact unit; (220) Second image processing unit; (250) Second storage unit; (260) Second control unit; (300) Image source