Light emission control circuit, display panel and display device

A display panel, comprising a plurality of light emission control circuits cascaded and a plurality of pixel circuits arranged in an array, wherein

• a light emission control circuit of the plurality of light emission control circuits cascaded comprises a filtering module, a first control module, a second control module and an output module, wherein
• the first control module is electrically connected to a signal input terminal, a first clock terminal and a second clock terminal;
• the first control module and the output module are electrically connected to a first node;
• the first control module and the filtering module are electrically connected to a second node;
• and the first control module is configured to control a potential of the first node and a potential of the second node separately according to an input signal of the signal input terminal, a first clock signal of the first clock terminal and a second clock signal of the second clock terminal;
• the second control module is electrically connected to the first clock terminal, the second clock terminal, a first level terminal, a second level terminal and the first control module;
• the second control module and the output module are electrically connected to a third node;
• and the second control module is configured to control a potential of the third node under control of the first control module, the first clock signal, the second clock signal, a first level signal of the first level terminal and a second level signal of the second level terminal;
• the output module is further electrically connected to the first level terminal, the second level terminal and a signal output terminal;
• and the output module is configured to control, according to the first level signal and the potential of the first node, the signal output terminal to output an enable level of a light emission control signal and control, according to the second level signal of the second level terminal and the potential of the third node, the signal output terminal to output a disable level of the light emission control signal, wherein the enable level and the disable level of the light emission control signal are output time-divisionally;
• and
• the filtering module is further electrically connected to the first node and has a uni-directional conduction property;
• and wherein
• among the plurality of light emission control circuits cascaded, a signal output terminal of each-stage light emission control circuit is electrically connected to at least part of a same row of the plurality of pixel circuits;
• and a signal output terminal of each-stage light emission control circuit other than a last-stage light emission control circuit is electrically connected to a signal input terminal of a next-stage light emission control circuit, and a signal input terminal of a first-stage light emission control circuit receives a start pulse signal.

A display device, comprising a display panel;

• wherein the display panel comprises a plurality of light emission control circuits cascaded and a plurality of pixel circuits arranged in an array, wherein
• a light emission control circuit of the plurality of light emission control circuits cascaded comprises a filtering module, a first control module, a second control module and an output module, wherein
• the first control module is electrically connected to a signal input terminal, a first clock terminal and a second clock terminal;
• the first control module and the output module are electrically connected to a first node;
• the first control module and the filtering module are electrically connected to a second node;
• and the first control module is configured to control a potential of the first node and a potential of the second node separately according to an input signal of the signal input terminal, a first clock signal of the first clock terminal and a second clock signal of the second clock terminal;
• the second control module is electrically connected to the first clock terminal, the second clock terminal, a first level terminal, a second level terminal and the first control module;
• the second control module and the output module are electrically connected to a third node;
• and the second control module is configured to control a potential of the third node under control of the first control module, the first clock signal, the second clock signal, a first level signal of the first level terminal and a second level signal of the second level terminal;
• the output module is further electrically connected to the first level terminal, the second level terminal and a signal output terminal;
• and the output module is configured to control, according to the first level signal and the potential of the first node, the signal output terminal to output an enable level of a light emission control signal and control, according to the second level signal of the second level terminal and the potential of the third node, the signal output terminal to output a disable level of the light emission control signal, wherein the enable level and the disable level of the light emission control signal are output time-divisionally;
• and
• the filtering module is further electrically connected to the first node and has a uni-directional conduction property;
• and wherein
• among the plurality of light emission control circuits cascaded, a signal output terminal of each-stage light emission control circuit is electrically connected to at least part of a same row of the plurality of pixel circuits;
• and a signal output terminal of each-stage light emission control circuit other than a last-stage light emission control circuit is electrically connected to a signal input terminal of a next-stage light emission control circuit, and a signal input terminal of a first-stage light emission control circuit receives a start pulse signal.