Patent ID: 11881132
Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display panel, comprising a test circuit located in a non-display region, wherein the test circuit comprises:
a plurality of switching transistors, wherein a first end of each switching transistor is electrically connected to a data line in the display panel, and a second end of each switching transistor is configured to receive a test data signal;
a data switching line extending in a first direction, wherein the data switching line is disposed in a same layer as a source-drain layer of each switching transistor, and the data switching line is configured to control each switching transistor to be turned on or off; and
a via hole connected to an active layer on which the switching transistors are located, wherein a distance provided between the data switching line and the via hole in a second direction is greater than 4 microns, wherein the second direction is perpendicular to the first direction,
wherein a vertical projection of the data switching line on a plane of the active layer overlaps the active layer, and a portion of the data switching line corresponding to an overlapping region of the vertical projection is a gate electrode of the switching transistors.