| CPC G09G 3/32 (2013.01) [G09G 3/2092 (2013.01); G09G 2310/0275 (2013.01); G09G 2330/028 (2013.01)] | 18 Claims |
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1. A display panel, comprising:
a gate driving circuit,
a pixel driving circuit, and
a light-emitting component;
wherein the pixel driving circuit comprises a driving transistor, a data writing module, a threshold compensation module, and a light-emitting control module;
wherein the data writing module is configured for transmitting a data voltage signal to a control terminal of the driving transistor such that the driving transistor generates a driving current according to the data voltage signal provided by a data signal terminal;
wherein the threshold compensation module is configured for detecting and self-compensating a threshold voltage deviation of the driving transistor;
wherein the light-emitting control module is connected in series between a first power signal terminal and the light-emitting component; and
wherein a transistor in the threshold compensation module is a P-type transistor and a transistor in the light-emitting control module is an N-type transistor, or the transistor in the threshold compensation module is an N-type transistor and the transistor in the light-emitting control module is P-type transistor; a control terminal of the threshold compensation module and a control terminal of the light-emitting control module are electrically connected to a same gate driving circuit;
wherein the light-emitting control module comprises a first light-emitting control unit and a second light-emitting control unit;
the first light-emitting control unit is electrically connected between the first power signal terminal and a first terminal of the driving transistor, and the second light-emitting control unit is electrically connected between a second terminal of the driving transistor and the light-emitting component;
wherein the pixel driving circuit further comprises a blocking module which is electrically connected between the first power signal terminal and the first terminal of the driving transistor, and is connected in series to the first light-emitting control unit, a control terminal of the blocking module is electrically connected to an output terminal of the gate driving circuit; the blocking module is configured for blocking a first power voltage signal of the first power signal terminal from being transmitted to the first terminal of the driving transistor in a data writing phase;
wherein the display panel further comprises a first gate driving circuit and a second gate driving circuit; the first gate driving circuit comprises a plurality of cascaded first gate driving units, the second gate driving circuit comprises a plurality of cascaded second gate driving units;
a control terminal of the data writing module is electrically connected to an output terminal of the second gate driving unit at a current stage;
a control terminal of the first light-emitting control unit is electrically connected to an output terminal of the first gate driving unit at a previous stage;
control terminals of both the blocking module and the threshold compensation module are electrically connected to an output terminal of the first gate driving unit at a current stage;
a control terminal of the second light-emitting control unit is electrically connected to the output terminal of the first gate driving unit at the current stage;
the display panel further comprises a first initialization module which is electrically connected between an initialization signal terminal and the control terminal of the driving transistor, and a control terminal of the first initialization module is electrically connected to the output terminal of the first gate driving unit at the previous stage and the first initialization module is configured for providing an initialization voltage signal for the control terminal of the driving transistor.
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