Display device
A display device includes a display panel and a gate driver, wherein the gate driver includes a plurality of stages each having a node Q electrically connected to a scan output terminal outputting a scan signal, a node Q′ electrically connected to a carry output terminal outputting a carry signal, and a protection transistor having a first electrode connected to the node Q and a second electrode connected to the node Q′, an active area includes a dynamic image area in which a dynamic image is displayed during a first frame period and a still image area in which a still image is displayed during the first frame period, a protection transistor provided in a first stage corresponded to the dynamic image area is turned on and a protection transistor provided in a second stage corresponded to the still image area is turned off during the first frame period.
1 . A display device comprising:
a display panel having an active area and a non-active area; and
a gate driver configured to sequentially supply a scan signal to a plurality of gate lines connected to subpixels of the display panel,
wherein the gate driver includes a plurality of stages each having a node Q electrically connected to a scan output terminal outputting the scan signal, a node Q′ electrically connected to a carry output terminal outputting a carry signal, and a protection transistor having a first electrode connected to the node Q and a second electrode connected to the node Q′,
wherein the active area includes a dynamic image area in which a dynamic image is displayed during a first frame period and a still image area in which a still image is displayed during the first frame period,
wherein a protection transistor provided in a first stage corresponded to the dynamic image area among the plurality of stages is turned on during the first frame period, and
wherein a protection transistor provided in a second stage corresponded to the still image area among the plurality of stages is turned off during the first frame period.
2 . The display device of claim 1 , wherein the protection transistor of the second stage is turned off while the node Q′ is bootstrapped in response to input of a carry clock signal during the first frame period.
3 . The display device of claim 2 , wherein the protection transistor of the first stage is turned on while the node Q′ is bootstrapped in response to input of the carry clock signal during the first frame period.
4 . The display device of claim 1 , wherein the protection transistor of the first stage is turned on and the protection transistor of the second stage is turned off while the node Q′ is bootstrapped during the first frame period.
5 . The display device of claim 1 , wherein a voltage of the node Q′ is higher than a voltage of the node Q in the second stage while the node Q′ is bootstrapped during the first frame period.
6 . The display device of claim 1 , wherein, during the first frame period, the first stage outputs a scan signal having a turn-on voltage and a carry signal having a turn-on voltage to the dynamic image area, and the second stage outputs the scan signal having a turn-off voltage and the carry signal having the turn-on voltage to the still image area.
7 . The display device of claim 1 , wherein, during the first frame period, the first stage receives a carry clock signal having a turn-on voltage and a scan clock signal having a turn-on voltage, and the second stage receives a carry clock signal having a turn-on voltage and a scan clock signal having a turn-off voltage.
8 . The display device of claim 1 , wherein each of the plurality of stages comprises:
a charging part configured to control supply of a turn-on voltage to the node Q, the node Q′, and a node QB;
a discharging part configured to control supply of a turn-off voltage to the node Q, the node Q′, and the node QB; and
an output part configured to control output of a scan signal according to voltages of the node Q and the node QB, and control output of a carry signal according to voltages of the node Q′ and the node QB.
9 . The display device of claim 8 , wherein the output part comprises:
a carry output part configured to control output of the carry signal in response to input of a carry clock signal; and
a scan output part configured to control output of the scan signal in response to input of a scan clock signal.
10 . The display device of claim 9 , wherein each of the plurality of stages further comprises a stabilizer configured to supply a turn-off voltage to the node Q, the node Q′, and the node QB and supply a turn-off voltage to the carry output part and the scan output part in a blank period of the first frame.
11 . The display device of claim 1 , wherein the plurality of stages is located in the non-active area and connected to a plurality of scan clock lines through which a scan clock signal is supplied and a plurality of carry clock lines through which a carry clock signal is supplied,
wherein one line of the scan clock lines and the carry clock lines is provided on one side of the plurality of stages, and the other one line is provided on the other side of the plurality of stages.
12 . The display device of claim 11 , wherein the one line of the scan clock lines and the carry clock lines is located between an edge line of the display panel and the plurality of stages, and the other one line is located between the plurality of stages and subpixels of the active area.