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

Claim 0:
1. 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 first transistor is electrically connected with a reset control signal line,
the reset control signal line is located in the first conductive layer,
the first transistor comprises a first gate electrode and a second gate electrode, the first gate electrode and the second gate electrode of the first transistor are two portions of the reset control signal line that overlap with the active semiconductor layer in a direction perpendicular to the base substrate,
the first conductive layer comprises a plurality of first conductive portions extending in a first direction and a plurality of second conductive portions extending in a second direction,
the first gate electrode of the first transistor is located in a second conductive portion of the first conductive layer, the second gate electrode of the first transistor is located in a first conductive portion of the first conductive layer, and the second conductive portion where the first gate electrode of the first transistor is located and the first conductive portion where the second gate electrode of the first transistor are an integral structure.