DISPLAY DEVICE AND OPERATION METHOD THEREOF AND IMAGE DISPLAY SYSTEM

摘要

According to the present invention, a display device comprises: a timing controller for outputting a test image signal; a data driving unit for outputting a plurality of data voltages corresponding to the test image signal; and a display panel for displaying a test image corresponding to the data voltages. The timing controller includes: a first processor unit for outputting the test image signal in response to the test signal; and a second processor unit for receiving brightness information of the test image from the outside, compensating preset gamma voltage corresponding to the test image based on the received brightness information, and outputting the test signal corresponding to the reference gamma voltage to the first processor unit.