Patent ID: 11910680
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. A method of manufacturing a display substrate, comprising forming a plurality of sub-pixels on a base substrate, wherein the plurality of sub-pixels are arranged in a plurality of sub-pixel columns in a first direction and a plurality of sub-pixel rows in a second direction, the first direction intersecting with the second direction,
each of the plurality of sub-pixels comprises a first transistor, a second transistor, a third transistor, and a storage capacitor on the base substrate,
a first electrode of the second transistor is electrically connected to a first capacitor electrode of the storage capacitor and a gate electrode of the first transistor, a second electrode of the second transistor is configured to receive a data signal, a gate electrode of the second transistor is configured to receive a first control signal, and the second transistor is configured to write the data signal to the gate electrode of the first transistor and the storage capacitor in response to the first control signal,
a first electrode of the first transistor is electrically connected to a second capacitor electrode of the storage capacitor and configured to be electrically connected to a first electrode of a light emitting element, a second electrode of the first transistor is configured to receive a first power voltage, the first transistor is configured to control a current for driving the light emitting element under control of a voltage of the gate electrode of the first transistor,
a first electrode of the third transistor is electrically connected with the first electrode of the first transistor and a second capacitor electrode of the storage capacitor, a second electrode of the third transistor is configured to be connected with a detection circuit, a gate electrode of the third transistor is configured to receive a second control signal, and the third transistor is configured to detect an electrical characteristic of the sub-pixel by the detection circuit in response to the second control signal;
the manufacturing method further comprises forming a plurality of data lines extended in the first direction, and the plurality of data lines are connected in one-to-one correspondence with the plurality of sub-pixel columns, so as to provide a plurality of data signals respectively;
each of the plurality of sub-pixel rows is divided into a plurality of sub-pixel groups, and each of the plurality of sub-pixel groups comprises a first sub-pixel, a second sub-pixel and a third sub-pixel arranged in the second direction successively; correspondingly, the plurality of data lines are divided into a plurality of data line groups, each data line group comprising a first data line, a second data line, and a third data line connected to the first sub-pixel, the second sub-pixel, and the third sub-pixel respectively;
for each of the plurality of sub-pixel groups, the first data line, the second data line and the third data line correspondingly connected to the sub-pixel group are all between the first sub-pixel and the third sub-pixel;
the manufacturing method further comprises forming a plurality of auxiliary electrode lines extended in the first direction, and the plurality of auxiliary electrode lines are configured to be electrically connected with a second electrodes of the light emitting element to provide a second power voltage; each of the plurality of auxiliary electrode lines is spaced from any one of the data lines by at least one of the plurality of sub-pixel columns.