公开(公告)号：US12190828B2

公开(公告)日：2025-01-07

申请号：US18566949

申请日：2021-07-05

Applicant: Sharp Display Technology Corporation

Inventor： Kaoru Yamamoto

IPC: G09G3/3275 ,  G09G3/3266

Abstract: To realize frame narrowing of a display device that uses a display element driven by a current. A second scanning signal line drive circuit configured to drive second scanning signal lines each connected to a control terminal of a writing control transistor is constituted by a shift register composed of unit circuits equal in number to half a number of the second scanning signal lines. Each of the unit circuits included in the shift register collectively drives two of the second scanning signal lines adjacent to each other. In a period during which a power supply control transistor and a light emission control transistor are maintained in an off state and the writing control transistor is maintained in an on state in first and second pixel circuits connected to the two second scanning signal lines adjacent to each other, a threshold voltage compensation transistor and an initialization transistor in the first pixel circuit and a threshold voltage compensation transistor and an initialization transistor in the second pixel circuit are sequentially set to an on state for a predetermined period each.