DISPLAY APPARATUS, UPGRADE APPARATUS, CONTROL METHOD THEREOF, AND DISPLAY SYSTEM

摘要

Embodiments disclose a display apparatus including: an image processing device which processes an image signal; a display device which displays an image based on the processed image signal; a connection device which connects to an upgrade apparatus which processes the image signal; a power supply device which supplies power to each component of the display apparatus and the upgrade apparatus through the connection device; and a first controller which controls the connection device to receive the processed image signal from the upgrade apparatus when the upgrade apparatus is connected through the connection device, wherein the power supply device is controlled by the upgrade apparatus connected through the connection device.