公开(公告)号：US10748490B2

公开(公告)日：2020-08-18

申请号：US16376050

申请日：2019-04-05

申请人： WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.

发明人： Haojie Xu ,  Xingyao Zhou ,  Yue Li ,  Yana Gao

IPC分类号： G09G3/3258

摘要： An organic light-emitting diode (OLED) compensation circuit, a display panel and a display apparatus are provided. The OLED compensation circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a storage capacitor and an OLED element. For the first transistor, a gate electrode is electrically connected to a first scanning signal line, a first electrode electrically connected to a data signal line, and a second electrode electrically connected to a first node. For the second transistor, a gate electrode is electrically connected to a first light-emitting control signal line, a first electrode electrically connected to a first voltage signal line, and a second electrode electrically connected to a second node. For the third transistor, a gate electrode is electrically connected to the first node, a first electrode electrically connected to the second node, and a second electrode electrically connected to a third node.