US 11,727,851 B2
Gate driver and display device including the same
Junghwan Hwang, Seongnam-si (KR); and Doo-young Lee, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Mar. 24, 2022, as Appl. No. 17/703,420.
Claims priority of application No. 10-2021-0059076 (KR), filed on May 7, 2021.
Prior Publication US 2022/0358873 A1, Nov. 10, 2022
Int. Cl. G09G 3/3266 (2016.01); G09G 3/3225 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/2092 (2013.01) [G09G 2300/0426 (2013.01); G09G 2310/0275 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A gate driver comprising:
a plurality of active stages configured to output gate signals to a display part; and
a plurality of pre-stages, connected to the active stages, configured to output carry signals to the active stages,
wherein the pre-stages do not output the gate signals to the display part,
wherein the pre-stages include a first pre-stage and a second pre-stage,
wherein, among the active stages and the pre-stages, only the second pre-stage includes a Q node compensator configured to receive a clock signal from the first pre-stage and to compensate for a voltage of a Q node based on the clock signal of the first pre-stage,
wherein the Q node compensator includes a feedback transistor configured to diode-connect a feedback input terminal, which is configured to receive the clock signal of the first pre-stage, to a feedback node of the second pre-stage.