GATE DRIVER AND ELECTROLUMINESCENT DISPLAY DEVICE INCLUDING THE SAME

Provided is an electroluminescent display device. The electroluminescent display device includes a display panel including a display area in which an image is displayed and a non-display area in which an image is not displayed. The electroluminescent display device further includes a subpixel including a subpixel circuit disposed in the display area and an electroluminescent element, wherein the subpixel circuit includes a driving transistor, and. The electroluminescent display device also includes a gate driver disposed in the non-display area, and a variable voltage output unit disposed in the non-display area and configured to supply a variable voltage to the subpixel. The variable voltage output unit selectively outputs an initialization voltage or a reference voltage to an anode of the electroluminescent element. Therefore, the anode of the electroluminescent element can be initialized using the initialization voltage during an initialization period. And, a decrease in contrast ratio of the electroluminescent display device can be suppressed using the reference voltage which is a sufficiently high voltage to express a black grayscale of low brightness during a sampling period.