公开(公告)号：US11056060B2

公开(公告)日：2021-07-06

申请号：US16823894

申请日：2020-03-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Yong Jae Kim ,  Chul Ho Kim ,  Jin Jeon

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A display device including: pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver configured to supply a first scan signal to each of the first scan lines at a first frequency; a second scan driver configured to supply a second scan signal to each of the second scan lines at a second frequency corresponding to a driving frequency of the pixels; an emission driver configured to supply an emission control signal to each of the emission control lines at the first frequency; a data driver configured to supply a data signal to each of the data lines at the second frequency; and a timing controller configured to control the first scan driver, the second scan driver, the emission driver, and the data driver.

公开(公告)号：US10909923B2

公开(公告)日：2021-02-02

申请号：US16812979

申请日：2020-03-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi Kim ,  Na Young Kim ,  Chul Ho Kim ,  Wang Jo Lee ,  Jin Jeon

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/3266 ,  H01L27/12

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.