公开(公告)号：US20220284865A1

公开(公告)日：2022-09-08

申请号：US17463518

申请日：2021-08-31

Applicant: Samsung Display Co., LTD.

Inventor： Wonjun LEE ,  Mihyeon JO ,  Cholho KIM

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

Abstract: A pixel of a light emitting display device includes: a switching transistor which transfers a data voltage in response to a gate writing signal, a storage capacitor which stores a storage voltage, a driving transistor which generates a driving current based on the storage voltage stored in the storage capacitor, an emission transistor which selectively forms a path of the driving current in response to an emission signal, a light emitting diode which emits light based on the driving current, and a diode initialization transistor which transfers an initialization voltage to the light emitting diode in response to the emission signal. The storage voltage corresponds to a value obtained by subtracting a threshold voltage of the driving transistor from the data voltage.