Patent ID: 11955061
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G  H

Claim 0:
1. A pixel driving circuit, configured to provide a signal for a to-be-driven element, comprising:
a current control sub-circuit, configured to transmit a current signal;
a time length control sub-circuit, configured to transmit a time signal; and
an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively,
wherein the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal,
the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, wherein in a light emission stage, duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same such that in the light emission stage duration of two adjacent turn-ons of the to-be-driven element is same and duration of two adjacent turn-offs of the to-be-driven element is same,
wherein the time length control sub-circuit comprises a comparator,
the comparator is configured to compare the time signal and a reference voltage signal to generate a comparison signal and control the output sub-circuit to be turned on or off based on the comparison signal, wherein the comparison signal is a periodic square wave signal.