Display device and method of driving same

Abstract

A display device includes a display panel on which an active area including sub-pixels is formed, a first GIP and a second GIP disposed on both sides of the active area, each including a buffer circuit including buffer TFTs and outputting a scan signal to a scan line to which the sub-pixels are connected through the buffer circuit, a sensing switch configured to select a signal input/output to/from the buffer circuit, a sensing unit configured to control the sensing switch to sense a threshold voltage of a buffer TFT of the second GIP connected to the scan line on the basis of a charged voltage of the scan line charged by the scan signal output from the first GIP, and a compensation unit configured to generate a compensation value for a high-potential voltage applied to a relevant GIP depending on the sensed threshold voltage of the buffer TFT.