CN203288220U - AMOLED pixel circuit and display device - Google Patents

Abstract

The utility model discloses an AMOLED pixel circuit and a display device, which relate to the field of display technology and can improve the integration degree of an embedded touch control circuit and an AMOLED drive circuit. The AMOLED pixel circuit includes: a light-emitting module, a touch module, a control module and a driving and amplifying module. The embodiment of the utility model is used for manufacturing an AMOLED display device.

Description

A kind of AMOLED pixel circuit and display device

technical field

The utility model relates to the field of display technology, in particular to an AMOLED pixel circuit and a display device.

Background technique

With the rapid progress of display technology, display devices with touch function are gradually becoming more and more popular due to their advantages such as visual operation. According to the difference in relative positions between the touch panel and the display panel, the existing display devices with touch function can generally be classified into two types: on-cell touch panels and in-cell touch panels. Compared with the surface touch panel, the in-cell touch panel has thinner thickness and higher light transmittance.

For the existing display devices, organic light emitting diode (Organic LightEmitting Diode, OLED) is a current-type light-emitting device, because of its self-illumination, fast response, wide viewing angle and the ability to be fabricated on flexible substrates, etc. characteristics and are increasingly being used in the field of high-performance displays. OLED display devices can be divided into PMOLED (Passive Matrix Driving OLED, passive matrix driving organic light emitting diode) and AMOLED (Active Matrix Driving OLED, active matrix driving organic light emitting diode) according to different driving methods. Due to the advantages of manufacturing cost, high response speed, power saving, DC drive available for portable devices, and wide operating temperature range, it is expected to become the next generation of new flat-panel displays replacing LCD (liquid crystal display, liquid crystal display). Therefore, the AMOLED display panel with embedded touch function has been favored by more and more people.

In the existing AMOLED display panel, each OLED relies on a driving circuit composed of multiple TFT (Thin Film Transistor, thin film transistor) switches in a pixel unit on the array substrate to drive light to realize display. The embedded touch screen panel (Touch Screen Panel, referred to as TSP) is a sensor and a driving circuit for touch, which are also fabricated in each pixel unit on the array substrate by using an array process. If the TSP sensor and driving circuit are superimposed on the AMOLED pixel, a certain number of driving circuit TFTs need to be added, which requires additional space for a certain pixel unit, and the free space in the pixel unit is limited, which greatly limits the embedded Simultaneous production of touch panel circuit and AMOLED drive circuit.

Utility model content

Embodiments of the present invention provide an AMOLED pixel circuit and a display device, which can improve the integration degree of the embedded touch control circuit and the AMOLED driving circuit.

In order to achieve the above object, the embodiments of the present utility model adopt the following technical solutions:

An aspect of the embodiment of the present utility model provides an AMOLED pixel circuit, including: a light emitting module, a touch module, a control module, and a driving and amplifying module;

The light-emitting module is respectively connected to the control module and the first voltage terminal, and is used to perform light-emitting display under the control of the control module;

The touch module is respectively connected to the control module and the second signal line for receiving an input touch signal;

The control module is also connected to the first signal line, the second signal line, the third signal line and the data line, and is used to control the light emitting module and the touch module according to the input signal of the signal line;

The driving and amplifying module is respectively connected to the light emitting module, the touch module, the control module and the second voltage terminal, and is used to drive the light emitting module or amplify the touch signal received by the touch module.

Further, the light emitting module includes:

a first transistor, the gate of the first transistor is connected to the control module, and the second pole of the first transistor is connected to the drive amplification module;

A light emitting device, one end of the light emitting device is connected to the first electrode of the first transistor, and the other end is connected to the first voltage end.

Further, the control module includes:

A second transistor, the gate of which is connected to the first signal line, the first pole of which is connected to the light emitting device, and the second pole of which is connected to the drive amplification module;

a third transistor, the gate of the third transistor is connected to the third signal line, the first pole thereof is connected to the gate of the first transistor, and the second pole thereof is connected to the data line;

A fourth transistor, the gate of the fourth transistor is connected to the second signal line, the first pole of the fourth transistor is connected to the driving amplifier module, and the second pole of the fourth transistor is connected to the data line.

Further, the drive amplification module includes:

A fifth transistor, the gate of the fifth transistor is connected to the first pole of the third transistor, the first pole is connected to the second voltage terminal, and the second pole is connected to the first pole of the fourth transistor;

A sixth transistor, the gate of the sixth transistor is connected to the first pole of the third transistor, the first pole is connected to the second voltage terminal, and the second pole is respectively connected to the second pole of the first transistor and the second pole of the second transistor;

A storage capacitor, one end of the storage capacitor is connected to the first electrode of the third transistor, and the other end of the storage capacitor is connected to the second voltage end.

Wherein, the touch module includes:

a seventh transistor, the gate of the seventh transistor is connected to the second signal line, and the first pole of the seventh transistor is connected to the first pole of the third transistor;

A phototransistor, the anode of the phototransistor is connected to the second voltage terminal, and the cathode of the phototransistor is connected to the second pole of the seventh transistor.

Alternatively, the touch module includes:

a seventh transistor, the gate of the seventh transistor is connected to the second signal line, and the first pole of the seventh transistor is connected to the first pole of the third transistor;

A sensing electrode, the sensing electrode is connected to the second pole of the seventh transistor.

It should be noted that, the first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor and the sixth transistor are all N-type transistors, and the seventh the transistor is a P-type transistor; or,

The first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor and the sixth transistor are all P-type transistors, and the seventh transistor is an N-type transistor .

Another aspect of the embodiments of the present invention provides a display device, comprising the AMOLED pixel circuit described above.

In the AMOLED pixel circuit and the display device provided by the embodiments of the present invention, the embedded touch circuit is integrated in the AMOLED pixel circuit, so that the light emitting module and the touch module share the control module and the driving amplification module. In this way, on the basis of not increasing the driving signal, the embedded touch circuit and the AMOLED pixel circuit are time-divisionally driven by adjusting the timing of the signal, thereby greatly improving the relationship between the embedded touch circuit and the AMOLED driving circuit. The integration level realizes the simultaneous production of the embedded touch panel circuit and the AMOLED drive circuit in a limited pixel unit space, which significantly improves the quality of the product and reduces the difficulty of product production.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of an AMOLED pixel circuit provided by an embodiment of the present invention;

FIG. 2 is a schematic circuit structure diagram of an AMOLED pixel circuit provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of the circuit structure of another AMOLED pixel circuit provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of signal waveforms driving an AMOLED pixel circuit as shown in FIG. 2 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The transistors used in all embodiments of the present invention can be thin film transistors or field effect transistors or other devices with the same characteristics. Since the source and drain of the transistors used here are symmetrical, there is no difference between the source and the drain. difference. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the gate, one pole is called the source, and the other pole is called the drain. In addition, transistors can be divided into N-type transistors or P-type transistors according to their characteristics. In the embodiment of the present invention, when N-type transistors are used, the first pole can be the source, and the second pole can be the drain. When a P-type transistor is used, the first pole may be the drain, and the second pole may be the source.

The AMOLED pixel circuit provided by the embodiment of the present utility model, as shown in FIG. 1 , includes: a light emitting module 11 , a touch module 12 , a control module 13 and a driving amplification module 14 .

The light emitting modules 11 are respectively connected to the first voltage terminal V1 of the control module 13 for displaying light under the control of the control module 13 .

The touch module 12 is respectively connected to the control module 13 and the second signal line S2 for receiving an input touch signal.

The control module 13 is also connected to the first signal line S1 , the second signal line S2 , the third signal line S3 and the data line DATA for controlling the light emitting module 11 and the touch module 12 according to the input signal of the signal lines.

The driving and amplifying module 14 is respectively connected to the light emitting module 11 , the touch module 12 , the control module 13 and the second voltage terminal V2 for driving the light emitting module 11 or amplifying the touch signal received by the touch module 12 .

The AMOLED pixel circuit provided by the embodiment of the present invention integrates an embedded touch circuit in the AMOLED pixel circuit, so that the light emitting module and the touch module share the control module and the driving amplification module. In this way, on the basis of not increasing the driving signal, the embedded touch circuit and the AMOLED pixel circuit are time-divisionally driven by adjusting the timing of the signal, thereby greatly improving the relationship between the embedded touch circuit and the AMOLED driving circuit. The integration level realizes the simultaneous production of the embedded touch panel circuit and the AMOLED drive circuit in a limited pixel unit space, which significantly improves the quality of the product and reduces the difficulty of product production.

Wherein, the first voltage terminal V1 can input a high level VDD, and the second voltage terminal V2 can input a low level VSS. The light emitting module 11 and the touch module 12 in the AMOLED pixel circuit share a data line DATA, and the data line DATA is mainly used for inputting light emitting control signals or reading touch signals to the AMOLED pixel circuit in time intervals.

Specifically, as shown in FIG. 2, in the AMOLED pixel circuit provided by the embodiment of the present invention, the light emitting module 11 may include:

The gate of the first transistor T1 is connected to the control module 13 , and the second electrode of the first transistor T1 is connected to the driving amplifier module 14 .

A light emitting device D1, one end of the light emitting device D1 is connected to the first pole of the first transistor T1, and the other end thereof is connected to the first voltage terminal V1.

In the embodiment of the present utility model, the light emitting device D1 may be various current-driven light emitting devices including LED (Light Emitting Diode, light emitting diode) or OLED (Organic Light Emitting Diode, organic light emitting diode) in the prior art. In the embodiment of the present invention, OLED is taken as an example for description.

Further, as shown in Figure 2, the control module 13 may include:

The second transistor T2, the gate of the second transistor T2 is connected to the first signal line S1, the first pole thereof is connected to the light emitting device D1, and the second pole thereof is connected to the driving amplification module 14;

The gate of the third transistor T3 is connected to the third signal line S3, the first pole thereof is connected to the gate of the first transistor T1, and the second pole thereof is connected to the data line DATA.

The fourth transistor T4, the gate of the fourth transistor T4 is connected to the second signal line S2, the first pole thereof is connected to the driving amplifying module 14, and the second pole thereof is connected to the data line DATA.

In the AMOLED pixel circuit shown in FIG. 2 , the drive amplification module 14 may include:

The fifth transistor T5, the gate of the fifth transistor T5 is connected to the first pole of the third transistor T3, the first pole thereof is connected to the second voltage terminal V2, and the second pole of the fifth transistor T5 is connected to the first pole of the fourth transistor T4.

The sixth transistor T6, the gate of the sixth transistor T6 is connected to the first pole of the third transistor T3, the first pole thereof is connected to the second voltage terminal V2, and the second pole thereof is respectively connected to the second pole of the first transistor T1 and the second pole of the first transistor T1. The second pole of the second transistor T2.

A storage capacitor C1, one end of the storage capacitor C1 is connected to the first electrode of the third transistor T3, and the other end of the storage capacitor C1 is connected to the second voltage terminal V2.

Further, as shown in FIG. 2, the touch module 12 may include:

The seventh transistor T7, the gate of the seventh transistor T7 is connected to the second signal line S2, and the first electrode of the seventh transistor T7 is connected to the first electrode of the third transistor T3.

A phototransistor D2, the anode of the phototransistor D2 is connected to the second voltage terminal V2, and the cathode of the phototransistor D2 is connected to the second pole of the seventh transistor T7.

With such a structure of the touch module 12, when the user performs a touch operation, the amount of light received by the phototransistor D2 will change due to the influence of the shading generated by the user when touching, and the phototransistor D2 will change according to the amount of light received. Different leakage currents will be generated, and the detection of the touch position can be accurately realized by examining the difference in leakage currents in different pixel regions of the display panel.

Of course, the touch module 12 in the AMOLED pixel circuit provided by the embodiment of the present invention is not limited to the photosensitive touch module, and other known touch circuit structures can also be applied to the present invention. For example, in the AMOLED pixel circuit shown in FIG. 3 , the structure of the touch module 12 may also include:

The seventh transistor T7, the gate of the seventh transistor T7 is connected to the second signal line S2, and the first electrode of the seventh transistor T7 is connected to the first electrode of the third transistor T3.

The sensing electrode C2 is connected to the second pole of the seventh transistor T7.

With such a structure of the touch module 12, when the user performs a touch operation, the user's finger or other touch device will form a sensing capacitance value between the sensing electrode C2, and the position of the sensing capacitance can also be accurately measured. Realize the detection of the touch position.

During practical application, the touch modules 12 with the above two structures can also be selected or replaced according to actual needs.

It should be noted that, in the AMOLED pixel circuit provided by the embodiment of the present invention, the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5 and the sixth transistor T6 can all be An N-type transistor is used, and the seventh transistor T7 may be a P-type transistor. Alternatively, the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5 and the sixth transistor T6 may also all be P-type transistors, and correspondingly, the seventh transistor T7 may be N type transistor.

In this utility model embodiment, the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5 and the sixth transistor T6 all use N-type transistors, and the seventh transistor T7 uses Taking the P-type transistor as an example, it is conceivable that when the type of the above transistor is changed, the same driving effect can also be achieved by correspondingly changing the potential level of the control signal.

The AMOLED pixel circuit with such a structure provided by the embodiment of the present invention can time-sharingly drive the embedded touch circuit and the AMOLED pixel circuit by adjusting the timing of the signal without increasing the driving signal, thereby The integration degree of the embedded touch panel circuit and the AMOLED driving circuit is greatly improved, and the simultaneous production of the embedded touch panel circuit and the AMOLED driving circuit in a limited pixel unit space is realized, which significantly improves the quality of the product and reduces the The difficulty of producing the product.

The embodiment of the present utility model also provides a display device, including an organic light-emitting display, other displays, and the like. The display device includes any one of the above-mentioned AMOLED pixel circuits. The display device may include a plurality of AMOLED pixel unit arrays, and each AMOLED pixel unit includes any one of the above-mentioned AMOLED pixel circuits. It has the same beneficial effect as the pixel circuit provided by the foregoing embodiments of the present invention, and since the pixel circuit has been described in detail in the foregoing embodiments, it will not be repeated here.

Specifically, the display device provided by the embodiment of the present utility model may be a display device including an LED display or an OLED display with current-driven light emitting devices.

The display device provided by the embodiment of the present invention includes an AMOLED pixel circuit. By integrating an embedded touch circuit in the AMOLED pixel circuit, the light emitting module and the touch module share a control module and a drive amplification module. In this way, on the basis of not increasing the driving signal, the embedded touch circuit and the AMOLED pixel circuit are time-divisionally driven by adjusting the timing of the signal, thereby greatly improving the relationship between the embedded touch circuit and the AMOLED driving circuit. The integration level realizes the simultaneous production of the embedded touch panel circuit and the AMOLED drive circuit in a limited pixel unit space, which significantly improves the quality of the product and reduces the difficulty of product production.

The AMOLED pixel circuit driving method provided in the embodiment of the present invention can be applied to various AMOLED pixel circuits provided in the foregoing embodiments, including:

S101. Turn off the light emitting module, input an initialization signal through the data line, and the control module initialize the touch module and the drive amplification module according to the initialization signal.

S102. The touch module receives a touch signal.

S103. Turn off the touch module, and drive the amplifying module to amplify and output the touch signal to the data line.

S104. Turn off the light-emitting module, and the data signal input by the data line precharges the driving amplifier module through the control module.

S105. Turn off the touch module, turn on the light emitting module, and drive the amplifying module to drive the light emitting module to realize light emitting display.

In the driving method of the AMOLED pixel circuit provided by the embodiment of the present invention, the embedded touch circuit is integrated in the AMOLED pixel circuit, so that the light emitting module and the touch module share the control module and the driving amplification module. In this way, on the basis of not increasing the driving signal, the embedded touch circuit and the AMOLED pixel circuit are time-divisionally driven by adjusting the timing of the signal, thereby greatly improving the relationship between the embedded touch circuit and the AMOLED driving circuit. The integration level realizes the simultaneous production of the embedded touch panel circuit and the AMOLED drive circuit in a limited pixel unit space, which significantly improves the quality of the product and reduces the difficulty of product production.

Taking the AMOLED pixel circuit shown in Figure 2 as an example, the driving method of the AMOLED pixel circuit provided by the embodiment of the present invention will be described in detail below, wherein the timing waveforms of each data signal line used to drive the AMOLED pixel circuit can be shown in Figure 4 shown. It should be noted that, in the embodiment of the present utility model, the gate of the second transistor T2 is connected to the first signal line S1, and the input signal S1_n; the gates of the fourth transistor T4 and the seventh transistor T7 are both connected to the second signal line S2 , the difference is that the gate of the fourth transistor T4 inputs the signal S2_n, and the gate of the seventh transistor T7 inputs the signal S2_n-1, wherein the waveform of the signal S2_n-1 is delayed to obtain the waveform of the signal S2_n; the third The gate of the transistor T3 is connected to the third signal line S3, and the signal S3_n is input.

In the AMOLED pixel circuit shown in Figure 2, the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5 and the sixth transistor T6 all use N-type transistors, the first The seven-transistor T7 is described using a P-type transistor as an example. It is conceivable that when the types of the above transistors are changed, the same driving effect can also be achieved by correspondingly changing the potential level of the control signal.

Specifically, the AMOLED pixel circuit driving method provided by the embodiment of the present invention may specifically include:

Initialization phase (INITIAL): In this phase, the signals S2_n and S2_n-1 are both low level, and the signals S1_n and S3_n are both high level. At this time, the first transistor T1 is turned off to turn off the light-emitting device, the seventh transistor T7 is turned on, and the touch module 12 is connected to the gate of the fifth transistor T5 and the gate of the sixth transistor T6, and the storage capacitor C1 is used as the fifth transistor. T5 and the storage capacitor of the sixth transistor T6, the third transistor T3 is turned on, the data line DATA inputs the initialization signal VINI, and the storage capacitor C1 is precharged with the initialization signal VINI.

In this way, through the initialization of the touch module 12 , the storage capacitor C1 can be precharged with the initialization signal VINI, thereby ensuring that the transistor T5 works in a saturated amplification state in the next stage.

Touch stage (PHOTO): In this stage, the signals S2_n and S3_n are at low level, and the signals S1 and S2_n-1 are at high level. At this time, the third transistor T3 and the fourth transistor T4 are turned off, and the touch module 12 receives the touch signal.

Wherein, the structure of the touch module 12 can be shown in FIG. 2 , the touch module 12 includes a phototransistor D2, the touch module 12 adopts such a structure, when the user performs a touch operation, the amount of light received by the phototransistor D2 It will change due to the shading effect generated by the user when touching. The phototransistor D2 will generate different leakage currents according to the amount of light received. By examining the differences in the leakage currents of different pixel areas of the display panel, the touch control can be accurately realized. location detection.

Of course, the touch module 12 in the AMOLED pixel circuit provided by the embodiment of the present invention is not limited to the photosensitive touch module, and other known touch circuit structures can also be applied to the present invention. For example, the structure of the touch module 12 can also be as shown in FIG. 3 , the touch module 12 includes the sensing electrode C2, the touch module 12 adopts such a structure, when the user performs a touch operation, the user's finger or other A sensing capacitance will be formed between the touch device and the sensing electrode C2, and the detection of the touch position can also be accurately realized by measuring the position of the sensing capacitance.

During practical application, the touch modules 12 with the above two structures can also be selected or replaced according to actual needs.

Specifically, the photosensitive touch module may be taken as an example to describe the touch stage in detail. When the third transistor T3 and the fourth transistor T4 are turned off, the phototransistor D2 detects the touch state of the display panel. When the display panel is touched by the user's finger, the external light source cannot illuminate the phototransistor D2, and the amount of light received by D2 is small. At this time, the light-induced leakage current is small, and the voltage of the storage capacitor C1 in the PHOTO stage is due to the leakage level. The change is also small; when the display panel is not touched, the external light source can irradiate the phototransistor D2, and the amount of light received by D2 is more, resulting in a larger light-induced leakage current, and the voltage of the storage capacitor C1 in the PHOTO stage is larger due to leakage. Large level changes. Therefore, if touched, the gate voltage of the amplifying transistor changes little relative to the initial voltage; if not touched, the gate voltage of the amplifying transistor changes greatly relative to the initial voltage.

Read stage (READ): In this stage, the signal S3_n is at low level, and the signals S2_n-1, S1_n and S2_n are at high level. At this time, the fourth transistor T4 is turned on, the third transistor T3 and the seventh transistor T7 are turned off, so that the touch module 12 is turned off, and the fifth transistor T5 and the sixth transistor T6 amplify their gate voltages and output them to the data line DATA.

In this way, the data line DATA is now used as a readout line for the output voltage of the touch result, and the amplifying transistors T5 and T6 amplify the gate voltage and output it to the data line DATA, thereby outputting the touch result to the display panel. The touch signal reading circuit.

The above three stages are the working process of the touch function circuit, and the touch function is realized by detecting and reading the touch signal.

Writing stage (WRITE): In this stage, the signals S2_n-1, S1_n, S2_n and S3_n are all at high level. At this time, the seventh transistor T7 is turned off, the second transistor T2, the third transistor T3 and the fourth transistor T4 are all turned on, and the gray scale current input by the data line DATA turns the gates of the fifth transistor T5, the sixth transistor T6 and the storage Capacitor C1 is charged.

Since the AMOLED is a current driving element, the data line DATA inputs the grayscale current I _DATA , the gate and drain of the fifth transistor T5 are connected, and the gate and drain of the sixth transistor T6 are connected. At this time, the transistors T5 and T6 are both in saturation state. I _DATA =I _DS1 +I _DS2 , where I _DS1 is the saturation leakage current of the fifth transistor T5, and I _DS2 is the saturation leakage current of the sixth transistor T6. I _DATA is the pixel charging current, which is added by the peripheral drive circuit, and the storage capacitor C1 is charged.

$I_{\mathrm{DS}2}=\frac{1}{2}{k}_2{(V_{\mathrm{GS}}-V_{\mathrm{TH}})}^2,$ but $I_{\mathrm{DATA}}=I_{\mathrm{DS}2}=\frac{1}{2}{k}_2{(V_{\mathrm{GS}}-V_{\mathrm{TH}})}^2$

Since the gates of transistors T5 and T6 are connected, transistor T6 is in the saturation region, then $I_{\mathrm{DS}2}=\frac{1}{2}{k}_2{(V_{\mathrm{GS}}-V_{\mathrm{TH}})}^2;$

thus, $I_{\mathrm{DATA}}={\mathrm{<figure-callout\; id="1"\; label="I\; DS"\; filenames="HDA00003415036100021.png,HDA00003415036100041.png"\; state="\{\{state\}\}">I</figure-callout>}}_{\mathrm{DS}}=\frac{1}{2}{k}_1{(V_{\mathrm{GS}}-V_{\mathrm{TH}})}^2+\frac{{\mathrm{<figure-callout\; id="1"\; label="k"\; filenames="HDA00003415036100021.png,HDA00003415036100041.png"\; state="\{\{state\}\}">k</figure-callout>}}_1}{2k_2}{(V_{\mathrm{GS}}-V_{\mathrm{TH}})}^2=\frac{k_1}{k_2}{\mathrm{<figure-callout\; id="1"\; label="I\; DS"\; filenames="HDA00003415036100021.png,HDA00003415036100041.png"\; state="\{\{state\}\}">I</figure-callout>}}_{\mathrm{DS}},$ Right now $I_{\mathrm{<figure-callout\; id="1"\; label="DS"\; filenames="HDA00003415036100021.png,HDA00003415036100041.png"\; state="\{\{state\}\}">DS</figure-callout>}1}=\frac{k_2}{k_1}{I}_{\mathrm{DATA}}.$

Light-emitting phase (OLED): In this phase, the signals S1_n and S3_n are at low level, and the signals S2_n-1 and S2_n are at high level. At this time, the second transistor T2, the third transistor T3 and the seventh transistor T7 are turned off, the first transistor T1 is turned on, the sixth transistor T6 works in the linear region, and the second transistor T2 works in the saturation region, driving the light emitting device D1 to realize light emission show.

Specifically, the leakage current of the sixth transistor T6 ${I^{\&prime;}}_{\mathrm{DS}2}=k_2((V_{\mathrm{GS}}-V_{\mathrm{TH}})\&Center\; Dot;V_{\mathrm{DS}2}-\frac{1}{2}{V_{\mathrm{DS}2}}^2),$

The first transistor T1 leakage current ${I^{\&prime;}}_{\mathrm{DS}5}=\frac{1}{2}{k}_5{(V_{\mathrm{GS}5}-V_{\mathrm{TH}})}^2,$

${{\mathrm{<span\; class="notranslate">\; I</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; [</span>{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 2</span>}{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ]</span>$

$<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}$

${{\mathrm{<span\; class="notranslate">\; I</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span>$

Since I′ _DS2 ＝I′ _DS5 ＝I _OLED

$\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}$

$<span\; class="notranslate">\; =</span><span\; class="notranslate">\; ></span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; I</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span>{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}$

$<span\; class="notranslate">\; =</span><span\; class="notranslate">\; ></span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; I</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}$

$<span\; class="notranslate">\; =</span><span\; class="notranslate">\; ></span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; I</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; GS</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; TH</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}}{{\mathrm{<span\; class="notranslate">\; V</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}$

$\begin{array}{cc}<span\; class="notranslate">\; =</span><span\; class="notranslate">\; ></span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; I</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}<span\; class="notranslate">\; \&Center\; Dot;</span>{{\mathrm{<span\; class="notranslate">\; I</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}& <span\; class="notranslate">\; =</span><span\; class="notranslate">\; ></span>{\mathrm{<span\; class="notranslate">\; I</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}{{\mathrm{<span\; class="notranslate">\; k</span>}}_{\mathrm{<span\; class="notranslate">\; 5</span>}}}<span\; class="notranslate">\; \&CenterDot;</span>{{\mathrm{<span\; class="notranslate">\; I</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}_{\mathrm{<span\; class="notranslate">\; DS</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}\end{array}$

Since I _OLED = I′ _DS2 , $I_{\mathrm{DS}2}=\frac{k_2+k_5}{k_5}\&Center\; Dot;{I^{\&prime;}}_{\mathrm{DS}2},$ $I_{\mathrm{DS}2}=\frac{k_2}{k_5}\&Center\; Dot;I_{\mathrm{DATA}}$

I _OLED is proportional to the current of I _DATA , and by selecting the values of k1, k2 and k5, I _DATA and I _OLED can have a larger current scaling ratio.

在保证I_OLED在OLED工作电流范围内的同时，可以有较大的充电电流I_DATA，从而加快存储电容C₁的充电速度，使得D1发光直到下一帧。The charging current I _DATA and the driving current I _OLED have a larger scaling ratio

While ensuring that I _OLED is within the OLED working current range, there may be a relatively large charging current I _DATA , so as to accelerate the charging speed of the storage capacitor C ₁ and make D1 emit light until the next frame.

It should be noted that the above is only taking the AMOLED pixel circuit shown in FIG. 2 as an example to describe the driving method for the AMOLED pixel circuit provided by the embodiment of the present invention. The driving method of the AMOLED pixel circuit provided by the embodiment of the present invention can also be applied to the AMOLED pixel circuit shown in FIG. 3 , and the specific process can refer to the above-mentioned embodiment, and will not be repeated one by one.

The AMOLED pixel circuit driving method with such a structure provided by the embodiment of the present invention can time-sharingly drive the embedded touch circuit and the AMOLED pixel circuit by adjusting the timing of the signal without increasing the driving signal. , thereby greatly improving the integration of the embedded touch panel circuit and the AMOLED driving circuit, realizing the simultaneous production of the embedded touch panel circuit and the AMOLED driving circuit in a limited pixel unit space, and significantly improving the quality of the product. The production difficulty of the product is reduced.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (8)

1. An AMOLED pixel circuit, comprising: a light-emitting module, a touch module, a control module and a driving and amplifying module; The light-emitting module is respectively connected to the control module and the first voltage terminal, and is used to perform light-emitting display under the control of the control module; The touch module is respectively connected to the control module and the second signal line for receiving an input touch signal; The control module is also connected to the first signal line, the second signal line, the third signal line and the data line, and is used to control the light emitting module and the touch module according to the input signal of the signal line; The driving and amplifying module is respectively connected to the light emitting module, the touch module, the control module and the second voltage terminal, and is used to drive the light emitting module or amplify the touch signal received by the touch module. 2. The AMOLED pixel circuit according to claim 1, wherein the light emitting module comprises: a first transistor, the gate of the first transistor is connected to the control module, and the second pole of the first transistor is connected to the drive amplification module; A light emitting device, one end of the light emitting device is connected to the first electrode of the first transistor, and the other end is connected to the first voltage end. 3. The AMOLED pixel circuit according to claim 2, wherein the control module comprises: A second transistor, the gate of which is connected to the first signal line, the first pole of which is connected to the light emitting device, and the second pole of which is connected to the drive amplification module; a third transistor, the gate of the third transistor is connected to the third signal line, the first pole thereof is connected to the gate of the first transistor, and the second pole thereof is connected to the data line; A fourth transistor, the gate of the fourth transistor is connected to the second signal line, the first pole of the fourth transistor is connected to the driving amplifier module, and the second pole of the fourth transistor is connected to the data line. 4. The AMOLED pixel circuit according to claim 3, wherein the drive amplification module comprises: A fifth transistor, the gate of the fifth transistor is connected to the first pole of the third transistor, the first pole is connected to the second voltage terminal, and the second pole is connected to the first pole of the fourth transistor; A sixth transistor, the gate of the sixth transistor is connected to the first pole of the third transistor, the first pole is connected to the second voltage terminal, and the second pole is respectively connected to the second pole of the first transistor and the second pole of the second transistor; A storage capacitor, one end of the storage capacitor is connected to the first electrode of the third transistor, and the other end of the storage capacitor is connected to the second voltage end. 5. The AMOLED pixel circuit according to claim 4, wherein the touch module comprises: a seventh transistor, the gate of the seventh transistor is connected to the second signal line, and the first pole of the seventh transistor is connected to the first pole of the third transistor; A phototransistor, the anode of the phototransistor is connected to the second voltage terminal, and the cathode of the phototransistor is connected to the second pole of the seventh transistor. 6. The AMOLED pixel circuit according to claim 4, wherein the touch module comprises: a seventh transistor, the gate of the seventh transistor is connected to the second signal line, and the first pole of the seventh transistor is connected to the first pole of the third transistor; A sensing electrode, the sensing electrode is connected to the second pole of the seventh transistor. 7. The AMOLED pixel circuit according to claim 5 or 6, characterized in that, The first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor and the sixth transistor are all N-type transistors, and the seventh transistor is a P-type transistor ;or, The first transistor, the second transistor, the third transistor, the fourth transistor, the fifth transistor and the sixth transistor are all P-type transistors, and the seventh transistor is an N-type transistor . 8. A display device, comprising the AMOLED pixel circuit according to any one of claims 1-7.

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