公开(公告)号：US20240203355A1

公开(公告)日：2024-06-20

申请号：US18591712

申请日：2024-02-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIN TAE JEONG ,  MIN KU LEE ,  JI HYUN KA ,  TAE HOON KWON ,  SEUNG KYU LEE ,  SEUNG JI CHA

IPC: G09G3/3258 ,  G09G3/3225 ,  H10K59/123

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  H10K59/123 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0214 ,  G09G2320/0238 ,  G09G2320/045

Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.

公开(公告)号：US20230119752A1

公开(公告)日：2023-04-20

申请号：US18063203

申请日：2022-12-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIN TAE JEONG ,  MIN KU LEE ,  JI HYUN KA ,  TAE HOON KWON ,  SEUNG KYU LEE ,  SEUNG JI CHA

IPC: G09G3/3258 ,  G09G3/3225 ,  H10K59/123

Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.