Patent ID: 11908407
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The light emitting display device according to claim 1,
wherein an optical characteristics detection portion are defined by the connection pattern and the detection pattern overlapping the signal line, and
wherein the pixel circuit comprises:
a scan line and a sense line extending to intersect the detection pattern;
a switching transistor spaced apart from the optical characteristics detection portion, and the switching transistor overlapping with the scan line;
a sensing transistor spaced apart from the optical characteristics detection portion, and the sensing transistor overlapping with the sense line;
a driving transistor spaced apart from the optical characteristics detection portion, and the driving transistor comprising a gate electrode connected to the switching transistor and a source electrode connected to the first electrode or the first electrode extension portion together with the sensing transistor; and
a second source voltage line supplying driving source voltage to a drain electrode of the driving transistor.