CN219676870U - Pixel compensation circuit and electronic device - Google Patents

Pixel compensation circuit and electronic device Download PDF

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Publication number
CN219676870U
CN219676870U CN202320488823.8U CN202320488823U CN219676870U CN 219676870 U CN219676870 U CN 219676870U CN 202320488823 U CN202320488823 U CN 202320488823U CN 219676870 U CN219676870 U CN 219676870U
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transistor
node
gate
emitting diode
organic light
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马占洁
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Abstract

The present disclosure relates to a pixel compensation circuit and an electronic device, the pixel compensation circuit including: the compensation module comprises a first transistor and a second transistor, wherein the drain electrode of the driving transistor is respectively connected with the first electrode of the first transistor and the anode of the organic light emitting diode, the second electrode of the first transistor and the first electrode of the second transistor are connected to a first node, the first electrode of the first transistor is connected with the anode of the organic light emitting diode, and the second electrode of the second transistor, the first end of the first storage capacitor and the grid electrode of the driving transistor are connected to a second node; a compensation module for controlling voltages of the first node and the second node through the first transistor and the second transistor in response to the light emission control signal so as to stably output a compensation data voltage to the driving transistor; and a driving transistor for driving the organic light emitting diode to emit light by compensating the data voltage in response to the light emission control signal.

Description

Pixel compensation circuit and electronic device
Technical Field
The disclosure relates to the field of display technologies, and in particular, to a pixel compensation circuit and an electronic device.
Background
AMOLED (Active Matrix/Organic Light Emitting Diode, active Matrix organic light emitting diode) has the characteristics of high response speed, high contrast, wide viewing angle and the like, and is widely developed at present. The conventional AMOLED adopts a 2T1C pixel driving method, and uses a switching transistor, a driving transistor and a storage capacitor to control the light emission of the organic light emitting diode. However, since the threshold voltage of the driving transistor is easily shifted, the driving current of the organic light emitting diode is changed, and thus the organic light emitting diode display panel is defective, which affects the image quality.
In the related art, the pixel compensation circuit compensates the threshold voltage to stabilize the driving current, but the current pixel compensation circuit has poor compensation effect, which causes the problem of ultra-low frequency flicker and affects the display effect.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a pixel compensation circuit and an electronic device.
According to a first aspect of embodiments of the present disclosure, there is provided a pixel compensation circuit applied to an electronic device, the pixel compensation circuit including a compensation module, a driving transistor, a first storage capacitor, and an organic light emitting diode, the compensation module including a first transistor and a second transistor, a drain electrode of the driving transistor being connected to a first pole of the first transistor and an anode electrode of the organic light emitting diode, respectively, a second pole of the first transistor and a first pole of the second transistor being connected to a first node, a first pole of the first transistor and an anode electrode of the organic light emitting diode being connected, a second pole of the second transistor, a first end of the first storage capacitor, and a gate electrode of the driving transistor being connected to a second node;
the compensation module is used for storing a compensation data voltage in the first storage capacitor and responding to a light-emitting control signal, and controlling the voltages of the first node and the second node through the first transistor and the second transistor so as to stably output the compensation data voltage to the driving transistor;
the driving transistor is used for responding to the light-emitting control signal and driving the organic light-emitting diode to emit light through the compensation data voltage.
Optionally, the compensation module is further configured to determine, in response to a data signal, the compensation data voltage according to a data voltage provided by the data signal and a voltage threshold of the driving transistor.
Optionally, the compensation module further includes a second storage capacitor, a first end of the second storage capacitor is connected to the second node, and a second end of the second storage capacitor is connected to the first node;
the compensation module is further configured to control positive feedback between the first node and the second node through the first transistor, the second transistor, and the second storage capacitor in response to the light emission control signal, so as to stabilize voltages of the first node and the second node.
Optionally, the pixel compensation circuit further includes a scan end, a third transistor, a fourth transistor, and a fifth transistor, where a drain of the third transistor is connected to a source of the driving transistor, a drain of the fourth transistor is connected to a first power supply, a source of the fourth transistor is connected to an anode of the organic light emitting diode, a drain of the fifth transistor is connected to a second power supply, a source of the fifth transistor is connected to the second node, and a gate of the second transistor, a gate of the third transistor, a gate of the fourth transistor, and a gate of the fifth transistor are connected to the scan end;
the scanning end is used for providing a scanning signal so as to conduct the second transistor, the third transistor, the fourth transistor and the fifth transistor and reset the first node, the second node and the anode of the organic light emitting diode.
Optionally, the scanning end includes a first scanning end and a second scanning end, the gate of the second transistor and the gate of the third transistor are connected with the first scanning end, and the gate of the fourth transistor and the gate of the fifth transistor are connected with the second scanning end.
Optionally, the pixel compensation circuit further includes a data terminal, and a source of the third transistor is connected to the data terminal;
the data terminal is configured to provide a data signal, and turn on the third transistor, the driving transistor, the first node, the second transistor, and the second node, so that the compensation module stores the compensation data voltage in the first storage capacitor.
Optionally, the scanning end further includes a third scanning end, and the gate of the first transistor is connected with the third scanning end;
the third scanning end is used for providing a scanning signal when the data end provides the data signal, and the first transistor is turned on.
Optionally, the pixel compensation circuit further includes a control terminal, a sixth transistor, and a seventh transistor, where a gate of the sixth transistor and a gate of the seventh transistor are connected to the control terminal, a drain of the sixth transistor is connected to a source of the driving transistor, a source of the sixth transistor is connected to a third power supply, a source of the seventh transistor is connected to a drain of the driving transistor, a drain of the seventh transistor is connected to an anode of the organic light emitting diode, and a second terminal of the first storage capacitor is connected to the third power supply;
the control terminal is used for providing the light-emitting control signal, and conducting the sixth transistor, the driving transistor, the seventh transistor and the organic light-emitting diode so as to drive the organic light-emitting diode to emit light through the driving transistor.
Optionally, the first transistor is an N-type MOS transistor.
According to a second aspect of embodiments of the present disclosure, there is provided an electronic device comprising the pixel compensation circuit of the first aspect above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
by providing a pixel compensation circuit, the pixel compensation circuit includes: the compensation module comprises a first transistor and a second transistor, wherein the drain electrode of the driving transistor is respectively connected with the first electrode of the first transistor and the anode of the organic light emitting diode, the second electrode of the first transistor and the first electrode of the second transistor are connected to a first node, the first electrode of the first transistor is connected with the anode of the organic light emitting diode, and the second electrode of the second transistor, the first end of the first storage capacitor and the grid electrode of the driving transistor are connected to a second node; the compensation module is used for storing a compensation data voltage in the first storage capacitor and responding to a light-emitting control signal, and controlling the voltages of the first node and the second node through the first transistor and the second transistor so as to stably output the compensation data voltage to the driving transistor; the driving transistor is used for responding to the light-emitting control signal and driving the organic light-emitting diode to emit light through the compensation data voltage. In other words, in the light emitting stage of the organic light emitting diode, since the channel coupling capacitance of the second transistor is smaller, the voltage influence on the second node is smaller, and meanwhile, the voltage jump of the first node and the voltage jump of the first transistor are opposite in direction and offset each other, so that the voltage of the first node is kept stable, frequent jumps of the voltages of the first node and the second node are avoided, stable compensation data voltage is provided for the driving transistor, the frequency of ultra-low frequency flicker is reduced, and the display effect of the electronic device is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram of a pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
FIG. 2 is a block diagram of another pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
FIG. 3 is a block diagram of another pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
FIG. 4 is a block diagram of another pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
FIG. 5 is a block diagram of another pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a pixel compensation circuit shown in an exemplary embodiment of the present disclosure;
fig. 7 is a timing diagram of a pixel compensation circuit according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
Before describing the specific embodiments of the present disclosure in detail, the following description is first made on application scenarios of the present disclosure, and the present disclosure may be applied to an electronic device using an AMOLED display screen, where the electronic device may include a smart phone, a smart wearable device, a smart tablet, a personal computer, a television, and so on. Since the threshold voltage of the driving transistor of the AMOLED display screen is easy to drift, the driving current of the organic light emitting diode is changed, so that the organic light emitting diode display panel is bad, the image quality is affected, and the problem is solved by using a pixel compensation circuit.
At present, a common pixel compensation circuit is 7T1C, and includes six P-type MOS transistors, an N-type MOS transistor and a storage capacitor, where the N-type MOS transistor has larger channel coupling capacitance due to the process limitation, and the generated jump voltage has larger influence on the gate potential coupling of the driving transistor at the moment of closing the control signal, so that the organic light emitting diode displays non-uniformity. Meanwhile, even if the leakage current of the N-type MOS transistor is smaller, the leakage current requirement during ultralow frequency display cannot be met, so that the ultralow frequency flicker problem is caused.
In order to solve the above technical problems, the present disclosure provides a pixel compensation circuit and an electronic device, where the pixel compensation circuit responds to a light emission control signal, that is, in a light emission stage, a compensation module can control voltages of a first node and a second node through a first transistor and a second transistor, so as to avoid frequent voltage jitter of the first node and the second node, provide stable compensation data voltage for a driving transistor, and reduce frequency of ultra-low frequency flicker.
The technical scheme of the present disclosure is described in detail below in connection with specific embodiments.
Fig. 1 is a block diagram of a pixel compensation circuit according to an exemplary embodiment of the present disclosure, the pixel compensation circuit is applied to an electronic device, as shown in fig. 1, the pixel compensation circuit includes a compensation module 101, a driving transistor 102, a first storage capacitor 103 and an organic light emitting diode 104, the compensation module 101 includes a first transistor 1011 and a second transistor 1012, a drain electrode of the driving transistor 102 is connected to a first pole of the first transistor 1011 and an anode electrode of the organic light emitting diode 104, a second pole of the first transistor 1011 and a first pole of the second transistor 1012 are connected to a first node a, a first pole of the first transistor 1011 is connected to an anode electrode of the organic light emitting diode 104, a second pole of the second transistor 1012, a first end of the first storage capacitor 103 and a gate electrode of the driving transistor 102 are connected to a second node B;
the compensation module 101 is configured to store a compensation data voltage in the first storage capacitor 103 and control voltages of the first node a and the second node B through the first transistor 1011 and the second transistor 1012 in response to a light emission control signal so as to stably output the compensation data voltage to the driving transistor 102;
the driving transistor 102 is configured to drive the organic light emitting diode 104 to emit light by the compensation data voltage in response to the light emission control signal.
The first transistor 1011 may be an N-type MOS transistor, and the second transistor 1012 and the driving transistor 102 may be P-type MOS transistors.
According to the technical scheme, in the light-emitting stage of the organic light-emitting diode, as the channel coupling capacitance of the second transistor is smaller, the voltage influence on the second node is smaller, meanwhile, the voltage jump of the first node and the voltage jump of the first transistor are opposite in direction and are mutually inefficient, so that the voltage of the first node is kept stable, frequent jumping of the voltages of the first node and the second node is avoided, stable compensation data voltage is provided for the driving transistor, the frequency of ultralow frequency flicker is reduced, and the display effect of the electronic equipment is improved.
Optionally, the compensation module 101 is further configured to determine, in response to a data signal, the compensated data voltage according to a data voltage provided by the data signal and a voltage threshold of the driving transistor 102.
It should be noted that, the method for determining the compensation data voltage by the compensation module 101 may refer to a processing method in the prior art, and will not be described herein.
Fig. 2 is a block diagram of another pixel compensation circuit according to an exemplary embodiment of the present disclosure, and as shown in fig. 2, the pixel compensation circuit further includes a second storage capacitor 1013, a first end of the second storage capacitor 1013 is connected to the second node, and a second end of the second storage capacitor 1013 is connected to the first node;
the compensation module 101 is further configured to control positive feedback between the first node and the second node through the first transistor 1011, the second transistor 1012, and the second storage capacitor 1013 in response to the light emission control signal, so as to stabilize the voltages of the first node and the second node.
According to the technical scheme, in the light-emitting stage of the organic light-emitting diode, if the potential of the second node is higher than that of the first node, the current of the second node can flow to the first node through the second transistor, so that the potential of the first node is increased, the potential of the second node is reduced, the potential of the first node is increased, the potential of the second node is pulled up through the second storage capacitor, positive feedback is formed, the potential of the second node is enabled to be more stable in low frequency, the stability of the compensation data voltage provided by the compensation module is further improved, and the frequency of low-frequency flicker is enabled to be lower.
Fig. 3 is a block diagram of another pixel compensation circuit according to an exemplary embodiment of the disclosure, as shown in fig. 3, the pixel compensation circuit further includes a scan terminal G, a third transistor 105, a fourth transistor 106, and a fifth transistor 107, wherein the drain of the third transistor 105 is connected to the source of the driving transistor 102, the drain of the fourth transistor 106 is connected to the first power source V1, the source of the fourth transistor 106 is connected to the anode of the organic light emitting diode 104, the drain of the fifth transistor 107 is connected to the second power source V2, the source of the fifth transistor 107 is connected to the second node B, the gate of the second transistor 1012, the gate of the third transistor 105, the gate of the fourth transistor 106, and the gate of the fifth transistor 107 are connected to the scan terminal G;
the scan terminal G is configured to provide a scan signal to turn on the second transistor 1012, the third transistor 105, the fourth transistor 106 and the fifth transistor 107, and reset the first node a, the second node B and the anode of the organic light emitting diode 104.
The scan terminals may include a first scan terminal G1 and a second scan terminal G2, the gate of the second transistor 1012 and the gate of the third transistor 105 are connected to the first scan terminal G1, and the gate of the fourth transistor 106 and the gate of the fifth transistor 107 are connected to the second scan terminal G2.
For example, the first scan terminal G1 and the second scan terminal G2 may be controlled to output a low voltage scan signal, turn on the second transistor 1012, the third transistor 105, the fourth transistor 106 and the fifth transistor 107, reset the first node a and the second node B through a second power supply, and reset the anode of the organic light emitting diode 104 through a first power supply.
Fig. 4 is a block diagram of another pixel compensation circuit according to an exemplary embodiment of the present disclosure, and as shown in fig. 4, the pixel compensation circuit further includes a data terminal SD, and a source of the third transistor 105 is connected to the data terminal SD;
the data terminal SD is used for providing a data signal to turn on the third transistor 105, the driving transistor 102, the first transistor 1011, the first node a, the second transistor 1012 and the second node B, so that the compensation module stores the compensation data voltage in the first storage capacitor 103.
For example, after resetting the first node a, the second node B, and the anode of the organic light emitting diode 104, the second scanning terminal G2 is controlled to output a high voltage signal, the first scanning terminal G1 is controlled to output a low voltage scanning signal continuously, so that the second transistor 1012 and the third transistor 105 are still in a conducting state, and the data signal output by the data terminal SD forms a loop among the third transistor 105, the driving transistor 102, the first transistor 1011, the first node a, the second transistor 1012, and the second node B, and meanwhile, the gate and drain potentials of the driving transistor 102 are also connected together, so that the driving transistor 102 forms a diode connection mode, and the compensated data voltage is written to the second node B and stored through the first storage capacitor 103.
Optionally, the scan terminal further includes a third scan terminal G3, and the gate of the first transistor 1011 is connected to the third scan terminal G3;
the third scan terminal G3 is configured to provide a scan signal when the data terminal SD provides the data signal, and turn on the first transistor 1011.
Illustratively, after resetting the anodes of the first node a, the second node B and the organic light emitting diode 104, the second scanning terminal G2 and the third scanning terminal G3 are controlled to output high voltage signals, and the first scanning terminal G1 is controlled to output low voltage scanning signals, so that the second transistor 1012 and the third transistor 105 are still in a conductive state, and at the same time, the first transistor 1011 is also in a conductive state, and the data signal output by the data terminal SD forms a loop among the third transistor 105, the driving transistor 102, the first transistor 1011, the first node a, the second transistor 1012 and the second node B.
Fig. 5 is a block diagram of another pixel compensation circuit according to an exemplary embodiment of the present disclosure, and as shown in fig. 5, the pixel compensation circuit further includes a control terminal EM, a sixth transistor 108, and a seventh transistor 109, wherein the gate of the sixth transistor 108 and the gate of the seventh transistor 109 are respectively connected to the control terminal EM, the drain of the sixth transistor 108 is connected to the source of the driving transistor 102, the source of the sixth transistor 108 is connected to the third power source V3, the source of the seventh transistor 109 is connected to the drain of the driving transistor 102, the drain of the seventh transistor 109 is connected to the anode of the organic light emitting diode 104, and the second terminal of the first storage capacitor 103 is connected to the third power source V3;
the control terminal EM is configured to provide the light emission control signal, and turn on the sixth transistor 108, the driving transistor 102, the seventh transistor 109, and the organic light emitting diode 104 to drive the organic light emitting diode 104 to emit light through the driving transistor 102.
For example, the control terminal EM may be controlled to output a low-voltage light emission control signal, to turn on the sixth transistor 108 and the seventh transistor 109, and to form a light emission current on the third power supply V3, the sixth transistor 108, the driving transistor 102, the seventh transistor 109, the organic light emitting diode 104, and a negative power supply VSS connected to the cathode of the organic light emitting diode 104, so as to implement light emission display of the organic light emitting diode 104, where the magnitude of the light emission current is determined by the gate potential of the driving transistor 102.
Fig. 6 is a schematic diagram of a pixel compensation circuit according to an exemplary embodiment of the disclosure, as shown in fig. 6, tq is the driving transistor, T1 is the first transistor, T2 is the second transistor, T3 is the third transistor, T4 is the fourth transistor, T5 is the fifth transistor, T6 is the sixth transistor, T7 is the seventh transistor, C1 is the first storage capacitor, C2 is the second storage capacitor, EL is the organic light emitting diode, a is the first node, B is the second node, G1 is the first scanning end, G2 is the second scanning end, G3 is the third scanning end, SD is the data end, EM is the control end, V1 is the first power supply, V2 is the second power supply, VDD is the third power supply, VSS is a negative power supply connected to the organic light emitting diode.
Wherein, T1 is N type MOS pipe, tq, T2, T3, T4, T5, T6 and T7 are P type MOS pipe, and T1 is high-voltage on, and low-voltage off, and Tq, T2, T3, T4, T5, T6 and T7 are low-voltage on, and high-voltage off.
The second pole of T1, the first pole of T2 and the second end of C2 are connected to a first node, the first pole of T1 and the drain of Tq are respectively connected with the source of T7, the drain of T7 is respectively connected with the source of T4 and the anode of EL, the gate of T1 is connected with G3, the gate of Tq, the second pole of T2, the first end of C2, the drain of T5 and the first end of C1 are connected to a second node, the gate of T2 is connected with G2, the gate of T3 is connected with G1, the source of T3 is connected with SD, the drain of T3 is respectively connected with the source of Tq and the drain of T6, the drain of T4 is connected with V1, the gate of T4 is connected with G2, the gate of T5 is connected with G2, the source of T6 is connected with VDD, the gate of T6 is connected with EM, the gate of T7 is connected with EM, the cathode of C1 is connected with VSS. The first pole and the second pole of T1 may be exchanged as needed, for example, the first pole of T1 may be a source and the second pole may be a drain; alternatively, the first pole of T1 may be the drain and the second pole may be the source. Similarly, the first pole and the second pole of T2 may be swapped as desired.
Fig. 7 is a timing diagram of a pixel compensation circuit according to an exemplary embodiment of the present disclosure, as shown in fig. 7, in a T1 stage (reset stage), G1, G2, G3 are at a low voltage, EM is at a high voltage, T2, T3, T4, and T5 are turned on, the first node a and the second node B are reset by V2, and the anode of the EL is reset by V1.
In the T2 stage (data writing and compensation stage), G1 and G3 are at high voltage, G2 and EM are at low voltage, the data signal output from the data terminal SD forms a loop among T3, tq, T1, the first node A, T and the second node B, and at the same time, the gate and drain potentials of Tq are also connected together, so that Tq forms a diode connection mode, and the compensation data voltage is written to the second node B and stored through C1.
In the T3 stage (light-emitting stage), G1 and G2 are at a high voltage, G3 and EM are at a low voltage, T6 and T7 are turned on, and light-emitting currents are formed in the circuits of VDD, T6, tq, T7, EL and VSS, whereby light-emitting display of EL is realized, wherein the magnitude of the light-emitting currents is determined by the gate potential of Tq.
According to the technical scheme, in the light-emitting stage of the organic light-emitting diode, as the channel coupling capacitance of the second transistor is smaller, the voltage influence on the second node is smaller, meanwhile, the voltage jump of the first node and the voltage jump of the first transistor are opposite in direction and are mutually inefficient, so that the voltage of the first node is kept stable, frequent jumping of the voltages of the first node and the second node is avoided, stable compensation data voltage is provided for the driving transistor, the frequency of ultralow frequency flicker is reduced, and the display effect of the electronic equipment is improved. Meanwhile, if the potential of the second node is higher than that of the first node, the current of the second node can flow to the first node through the second transistor, so that the potential of the first node is increased, the potential of the second node is reduced, the potential of the first node is increased, the potential of the second node is pulled up through the second storage capacitor, positive feedback is formed, the potential of the second node is enabled to be more stable at low frequency, the stability of the compensation data voltage provided by the compensation module is further improved, and the frequency of low-frequency flicker is enabled to be lower.
Another exemplary embodiment of the present disclosure provides an electronic device including the pixel compensation circuit described above in any one of fig. 1 to 6.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. The pixel compensation circuit is characterized by comprising a compensation module, a driving transistor, a first storage capacitor and an organic light emitting diode, wherein the compensation module comprises a first transistor and a second transistor, the drain electrode of the driving transistor is respectively connected with the first pole of the first transistor and the anode of the organic light emitting diode, the second pole of the first transistor and the first pole of the second transistor are connected with a first node, the first pole of the first transistor and the anode of the organic light emitting diode are connected, and the second pole of the second transistor, the first end of the first storage capacitor and the grid electrode of the driving transistor are connected with a second node;
the compensation module is used for storing a compensation data voltage in the first storage capacitor and responding to a light-emitting control signal, and controlling the voltages of the first node and the second node through the first transistor and the second transistor so as to stably output the compensation data voltage to the driving transistor;
the driving transistor is used for responding to the light-emitting control signal and driving the organic light-emitting diode to emit light through the compensation data voltage.
2. The pixel compensation circuit of claim 1, wherein,
the compensation module is further used for responding to a data signal, and determining the compensation data voltage according to the data voltage provided by the data signal and the voltage threshold value of the driving transistor.
3. The pixel compensation circuit of claim 1, wherein the compensation module further comprises a second storage capacitor, a first end of the second storage capacitor being connected to the second node, a second end of the second storage capacitor being connected to the first node;
the compensation module is further configured to control positive feedback between the first node and the second node through the first transistor, the second transistor, and the second storage capacitor in response to the light emission control signal, so as to stabilize voltages of the first node and the second node.
4. The pixel compensation circuit of claim 3, further comprising a scan terminal, a third transistor, a fourth transistor, and a fifth transistor, wherein a drain of the third transistor is connected to a source of the driving transistor, a drain of the fourth transistor is connected to a first power supply, a source of the fourth transistor is connected to an anode of the organic light emitting diode, a drain of the fifth transistor is connected to a second power supply, a source of the fifth transistor is connected to the second node, and a gate of the second transistor, a gate of the third transistor, a gate of the fourth transistor, and a gate of the fifth transistor are connected to the scan terminal;
the scanning end is used for providing a scanning signal so as to conduct the second transistor, the third transistor, the fourth transistor and the fifth transistor and reset the first node, the second node and the anode of the organic light emitting diode.
5. The pixel compensation circuit of claim 4, wherein the scan terminal comprises a first scan terminal and a second scan terminal, wherein the gate of the second transistor and the gate of the third transistor are connected to the first scan terminal, and wherein the gate of the fourth transistor and the gate of the fifth transistor are connected to the second scan terminal.
6. The pixel compensation circuit of claim 4, further comprising a data terminal, wherein a source of the third transistor is coupled to the data terminal;
the data terminal is configured to provide a data signal, and turn on the third transistor, the driving transistor, the first node, the second transistor, and the second node, so that the compensation module stores the compensation data voltage in the first storage capacitor.
7. The pixel compensation circuit of claim 6, wherein the scan terminal further comprises a third scan terminal, the gate of the first transistor being connected to the third scan terminal;
the third scanning end is used for providing a scanning signal when the data end provides the data signal, and the first transistor is turned on.
8. The pixel compensation circuit of claim 1, further comprising a control terminal, a sixth transistor, and a seventh transistor, wherein a gate of the sixth transistor and a gate of the seventh transistor are respectively connected to the control terminal, a drain of the sixth transistor is connected to a source of the driving transistor, a source of the sixth transistor is connected to a third power supply, a source of the seventh transistor is connected to a drain of the driving transistor, a drain of the seventh transistor is connected to an anode of the organic light emitting diode, and a second terminal of the first storage capacitor is connected to the third power supply;
the control terminal is used for providing the light-emitting control signal, and conducting the sixth transistor, the driving transistor, the seventh transistor and the organic light-emitting diode so as to drive the organic light-emitting diode to emit light through the driving transistor.
9. The pixel compensation circuit of any one of claims 1-8, wherein the first transistor is an N-type MOS transistor.
10. An electronic device, characterized in that it comprises a pixel compensation circuit according to any one of the preceding claims 1-9.
CN202320488823.8U 2023-03-14 2023-03-14 Pixel compensation circuit and electronic device Active CN219676870U (en)

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CN202320488823.8U CN219676870U (en) 2023-03-14 2023-03-14 Pixel compensation circuit and electronic device

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Application Number Priority Date Filing Date Title
CN202320488823.8U CN219676870U (en) 2023-03-14 2023-03-14 Pixel compensation circuit and electronic device

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CN219676870U true CN219676870U (en) 2023-09-12

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