公开(公告)号：US20210183303A1

公开(公告)日：2021-06-17

申请号：US17108459

申请日：2020-12-01

Applicant: LG Display Co., Ltd.

Inventor： Jaesung KIM ,  Kiwoo KIM ,  Sungwook CHANG ,  Hyungsoo KIM

IPC: G09G3/32

Abstract: An electroluminescent display device comprises subpixels each including a pixel driving circuit driven in accordance with an initialization period, a sampling period and a light emission period. The pixel driving circuit includes a light emitting diode, a driving transistor including a gate connected to a first node, a drain connected to a second node, and a source connected to a third node, a first switching circuit turned on for the initialization period, providing an initialization voltage to the first node and providing a fixed voltage to the third node, a second switching circuit turned on for the sampling period, applying a data voltage to the third node and providing the initialization voltage to an anode of the light emitting diode, and a light emitting control circuit controlled by an emission signal and turned on for the light emission period to provide a high potential voltage to the third node.