CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Stage of International Application No. PCT/CN2019/111072, filed on Oct. 14, 2019, which claims the priority to the Chinese Patent Application No. 201811215357.6, filed to China National Intellectual Property Administration on Oct. 18, 2018 and entitled “ARRAY SUBSTRATE, DRIVING METHOD, ORGANIC LIGHT EMITTING DISPLAY PANEL AND DISPLAY DEVICE”, all of which are incorporated in this application by reference.

FIELD

The present disclosure relates to the technical field of display and in particular to an array substrate, a driving method, an organic light emitting display panel and a display device.

BACKGROUND

An OLED (Organic Light Emitting Diode) display panel is one of hotspots in the research field of flat panel displays nowadays, and compared with an LCD (Liquid Crystal Display), an OLED display has the advantages such as low energy consumption, low production cost, self-illumination, wide viewing angle and high response speed.

SUMMARY

An embodiment of the present disclosure provides an array substrate, including:a plurality of light emitting devices being located in a display area;pixel circuits being located in the display area and being coupled with the light emitting devices, and the pixel circuits including driving transistors; anda plurality of voltage control circuits being located in a non-display area; and at least two of the pixel circuits sharing one of the voltage control circuits, and in one row of pixel circuits, first electrodes of the driving transistors being coupled with the shared voltage control circuit, and second electrodes of the driving transistors being coupled with the corresponding light emitting devices.

Optimally, in the embodiment of the present disclosure, the array substrate further includes: a plurality of pixel units located in the display area, and the pixel units respectively includes a plurality of sub-pixels; and the sub-pixels respectively includes one of the light emitting devices and one of the pixel circuits.

Optimally, in the embodiment of the present disclosure, the pixel circuits are arranged in a plurality of rows, and the pixel circuits in at least two of the adjacent sub-pixels in the same row share one of the voltage control circuits.

Optimally, in the embodiment of the present disclosure, all the pixel circuits in the same row share one of the voltage control circuits.

Optimally, in the embodiment of the present disclosure, the voltage control circuits respectively include: a first switching transistor; anda gate of the first switching transistor is configured to receive a reset control signal, a first electrode of the first switching transistor is configured to receive an initialization signal, and a second electrode of the first switching transistor is coupled with first electrodes of corresponding driving transistors.

The voltage control circuits further respectively include: a second switching transistor; anda gate of the second switching transistor is configured to receive a light emitting control signal, a first electrode of the second switching transistor is configured to receive a first power signal, and a second electrode of the second switching transistor is coupled with the first electrodes of corresponding driving transistors.

Optimally, in the embodiment of the present disclosure, the pixel circuits respectively further include: a third switching transistor and a storage capacitor;a gate of the third switching transistors is configured to receive a first gate scanning signal and is coupled with a first gate driving circuit, a first electrode of the third switching transistor is configured to receive a data signal, and a second electrode of the third switching transistor is coupled with a gate of a corresponding driving transistor; anda first end of the storage capacitor is coupled with the gate of the corresponding driving transistor, and a second end of the storage capacitor is coupled with a grounding end.

Optimally, in the embodiment of the present disclosure, the pixel circuits respectively further comprise: a fourth switching transistor, wherein a type of the fourth switching transistor is different from a type of the third switching transistor; anda gate of the fourth switching transistor is configured to receive a second gate scanning signal and is coupled with a second gate driving circuit, a first electrode of the fourth switching transistor is configured to receive a data signal, and a second electrode of the fourth switching transistor is coupled with the gate of the corresponding driving transistor.

Optimally, in the embodiment of the present disclosure, the pixel circuits respectively further comprise: a fifth switching transistor, wherein the second electrodes of the driving transistors are coupled with corresponding light emitting devices through the fifth switching transistor; anda gate of the fifth switching transistor is coupled with a reference signal end, a first electrode of the fifth switching transistor is coupled with a second electrode of a corresponding driving transistor, and a second electrode of the fifth switching transistor is coupled with a corresponding light emitting device.

Optimally, in the embodiment of the present disclosure, the fifth switching transistor is a P-type transistor, and the reference signal end is a grounding end.

Optimally, in the embodiment of the present disclosure, the array substrate further includes a plurality of light emitting control signal lines and a light emitting control circuit electrically connected with the light emitting control signal lines, wherein the light emitting control signal lines are electrically connected with the voltage control circuit electrically connected with one row of pixel circuits and is configured to input the light emitting control signals to the electrically connected voltage control circuit.

Optimally, in the embodiment of the present disclosure, the light emitting control circuit includes a plurality of cascaded light emitting shift registers, and the light emitting shift registers is electrically connected with one of the light emitting control signal lines respectively.

Optimally, in the embodiment of the present disclosure, the array substrate further includes: one first power signal line, wherein the first power signal line is electrically connected with the voltage control circuits and is configured to input the first power signals the voltage control circuits; orthe array substrate further includes: a plurality of first power signal lines, wherein one of the light emitting control signal lines is electrically connected with the voltage control circuit electrically connected with one row of pixel circuits and is configured to input the first power signal to the electrically connected voltage control circuit.

Accordingly, an embodiment of the present disclosure further provides an organic light emitting display panel, including the array substrate provided by the embodiment of the present disclosure.

Accordingly, an embodiment of the present disclosure further provides a display device, including the organic light emitting display panel provided by the embodiment of the present disclosure.

Accordingly, an embodiment of the present disclosure further provides a driving method configured for the array substrate provided by the embodiment of the present disclosure, including: controlling voltage control circuits and pixel circuits to drive light emitting devices to work within one-frame display time, whereindriving one row of light emitting devices to work includes:in a reset stage, outputting, by the voltage control circuits, initialization signals to first electrodes of driving transistors in response to reset control signals so as to control corresponding light emitting devices to be reset;in a data writing stage, outputting data signal to gates of the driving transistors; andin a light emitting stage, outputting, by the voltage control circuits, first power signals to the first electrodes of the driving transistors in response to light emitting control signals so as to drive the light emitting devices to emit light.

Optimally, in the embodiment of the present disclosure, after the light emitting stage, driving one row of light emitting devices to work further includes: a non-light-emitting stage; andin the non-light-emitting stage, disconnecting, by the voltage control circuits, the first power signals from the first electrodes of the driving transistors in response to the light emitting control signals so as to control the corresponding pixel circuits to drive the connected light emitting devices to stop emitting light.

Optimally, in the embodiment of the present disclosure, non-light-emitting stages of driving rows of light emitting devices to work are started at a same time within the one-frame display time; ornon-light-emitting stages of driving rows of light emitting devices to work are sequentially started row by row within the one-frame display time.

Optimally, in the embodiment of the present disclosure, after the light emitting stage, the driving one row of light emitting devices to work further includes: a dimming stage; the dimming stage includes: at least one non-light-emitting stage and at least one light emitting stage, wherein the non-light-emitting stage and the light emitting stage are sequentially and alternately arranged;in the non-light-emitting stage, disconnecting, by the voltage control circuits, the first power signals from the first electrodes of the driving transistors in response to the light emitting control signals so as to control the corresponding pixel circuits to drive the connected light emitting devices to stop emitting light; andin the light emitting stage, outputting, by the voltage control circuits, the first power signals to the first electrodes of the driving transistors in response to the light emitting control signals so as to control the corresponding pixel circuits to drive the connected light emitting devices to emit light.

Optimally, in the embodiment of the present disclosure, dimming stages of driving rows of light emitting devices to work are started at a same time within the one-frame display time; ordimming stages of driving rows of light emitting devices to work are sequentially started row by row within the one-frame display time.

