Patent ID: 11881176
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. A display substrate, comprising: a base substrate and a plurality of sub-pixels arranged on the base substrate,
wherein the base substrate comprises a display region, and the plurality of sub-pixels are arranged in an array in the display region,
each sub-pixel of the plurality of sub-pixels comprises a pixel circuit and a light emitting element,
the pixel circuit comprises a driving transistor, a reset circuit, a threshold compensation circuit, a data write circuit, and a light emitting control circuit,
the driving transistor comprises a gate electrode and is configured to drive the light emitting element to emit light according to a voltage of the gate electrode of the driving transistor;
the reset circuit is configured to write a reset voltage to the gate electrode of the driving transistor to reset the gate electrode of the driving transistor;
the threshold compensation circuit is configured to write a compensation voltage to the gate electrode of the driving transistor, wherein the compensation voltage comprises a threshold voltage of the driving transistor;
the data write circuit is configured to write a data signal to the driving transistor;
the light emitting control circuit is configured to control a connection between the light emitting element and the driving transistor to turn on or off; and
the reset circuit comprises a first transistor, the threshold compensation circuit comprises a second transistor, and the first transistor and the second transistor are double-gate transistors;
wherein the pixel circuit further comprises an active semiconductor layer and a first conductive layer,
a gate electrode of the second transistor is electrically connected with a first scanning signal line, and the first scanning signal line is located in the first conductive layer,
the second transistor comprises a first gate electrode and a second gate electrode, a first portion of the first scanning signal line that overlaps with the active semiconductor layer in the direction perpendicular to the base substrate comprises two sub-portions, and the two sub-portions are respectively the first gate electrode and the second gate electrode of the second transistor.