US 11,817,055 B2
Driving circuit and display device using the same
WooKyu Sang, Paju-si (KR); and Moonsoo Chung, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Sep. 14, 2022, as Appl. No. 17/944,930.
Application 17/944,930 is a continuation of application No. 17/379,876, filed on Jul. 19, 2021, granted, now 11,468,839.
Claims priority of application No. 10-2020-0103392 (KR), filed on Aug. 18, 2020.
Prior Publication US 2023/0005427 A1, Jan. 5, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/3266 (2016.01); G09G 3/3283 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/3266 (2013.01); G09G 3/3283 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels;
a gate driver disposed on one side or both sides of the display panel; and
a light emission signal generator disposed on the other side of the display panel,
wherein each the plurality of pixels includes:
an electroluminescent device and a pixel circuit operable to vary a refresh rate of the electroluminescent device into a first refresh rate and a second refresh rate lower than the first refresh rate; and
wherein the light emission signal generator varies a duty ratio of a light emitting signal according to the refresh rate,
wherein the pixel circuit is driven including at least one refresh frame period and at least one hold frame period when driving at the second refresh rate, and
wherein the refresh frame period and the hold frame period each include a bias period.