Patent ID: 11922838
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The display panel according to claim 3, wherein the display panel comprises n columns of sub-pixels and n data lines located in the display region and the n columns of sub-pixels are connected with the n data lines,
the display panel further comprises a fourth control unit and a test control terminal located in the first region, the third endpoint is configured to receive a detection signal, the fourth control unit is connected with the test control terminal, the first endpoint, and an x-th data line, the fourth control unit is configured to provide a signal of the first endpoint to the x-th data line under control of a signal of the test control terminal, to control a light-emitting state of an x-th column of sub-pixels, wherein x is a natural number, 1≤x≤n.