US 12,033,590 B2
Display device and display driving method
Jaemin Kim, Paju-si (KR); Subin Park, Jeonju-si (KR); Bonghwan Kim, Ulsan (KR); and Won-Seok Song, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jul. 5, 2023, as Appl. No. 18/218,491.
Application 18/218,491 is a continuation of application No. 17/728,676, filed on Apr. 25, 2022, granted, now 11,735,123.
Claims priority of application No. 10-2021-0124376 (KR), filed on Sep. 16, 2021.
Prior Publication US 2023/0343843 A1, Oct. 26, 2023
Int. Cl. H01L 29/417 (2006.01); G09G 3/3291 (2016.01); H01L 21/768 (2006.01); H01L 23/522 (2006.01); H01L 29/08 (2006.01); H01L 29/78 (2006.01)
CPC G09G 3/3291 (2013.01) [H01L 21/76877 (2013.01); H01L 23/5226 (2013.01); H01L 29/0847 (2013.01); H01L 29/41791 (2013.01); H01L 29/785 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element, and a plurality of switching transistors configured to control an operation of the driving transistor;
a gate driving circuit configured to supply a plurality of scan signals to the display panel;
a data driving circuit configured to supply a plurality of data voltages to the display panel; and
a timing controller configured to control the gate driving circuit and the data driving circuit,
wherein the plurality of switching transistors include:
a first switching transistor to which a first scan signal is supplied to a first gate electrode of the first switching transistor, a first drain electrode of the first switching transistor is connected to a gate electrode of the driving transistor, and a first source electrode of the first switching transistor is connected to a source electrode of the driving transistor;
a second switching transistor to which a second scan signal is supplied to a second gate electrode of the second switching transistor, a data voltage or a bias voltage is supplied to a second drain electrode of the second switching transistor, and a second source electrode of the second switching transistor is connected to a drain electrode of the driving transistor;
a third switching transistor to which a light emitting signal is supplied to a third gate electrode of the third switching transistor, a high potential driving voltage is supplied to a third drain electrode of the third switching transistor, and a third source electrode of the third switching transistor is connected to the drain electrode of the driving transistor;
a fourth switching transistor to which the light emitting signal is supplied to a fourth gate electrode of the fourth switching transistor, a fourth drain electrode of the fourth switching transistor is connected to the source electrode of the driving transistor, and a fourth source electrode of the fourth switching transistor is connected to an anode electrode of the light emitting element; and
a fifth switching transistor to which a third scan signal is supplied to a fifth gate electrode of the fifth switching transistor, a stabilization voltage is supplied to a fifth drain electrode of the fifth switching transistor, and a fifth source electrode of the fifth switching transistor is connected to the gate electrode of the driving transistor and a storage capacitor.