US 12,131,686 B2
Display device having a voltage provider for generating a gate-on voltage and a kickback voltage
Sang Hyun Lee, Seongnam-si (KR); Si Duk Sung, Hwaseong-si (KR); and Dae-Sik Lee, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jun. 11, 2020, as Appl. No. 16/898,439.
Claims priority of application No. 10-2019-0155879 (KR), filed on Nov. 28, 2019.
Prior Publication US 2021/0166616 A1, Jun. 3, 2021
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0205 (2013.01); G09G 2310/066 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels, a plurality of gate lines, a plurality of data lines connected to the plurality of pixels, and a gate driver; and
a circuit board comprising a voltage provider and a signal channel connecting the voltage provider to the gate driver,
wherein the gate driver receives, through the signal channel, a gate-on voltage that generally increases in one frame and a kickback voltage that gradually decreases in one frame from the voltage provider, and applies the gate-on voltage and the kickback voltage to the plurality of gate lines,
wherein a change amount of the gate-on voltage within one frame is proportional to a change amount of the kickback voltage within one frame,
a ratio of the change amount of the kickback voltage within one frame to the change amount of the gate-on voltage within one frame is adjustable,
a kickback time in which the kickback voltage is applied is different for at least one of the plurality of gate lines, and
the kickback time is defined by
t(i)=(1±(i−1)γ)tref,
(t(i): kickback time of i-th gate line, tref: reference time, and γ: any number between 0 and 1).