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CN109859687A - Pixel circuit, display circuit and display device - Google Patents

Pixel circuit, display circuit and display device Download PDF

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Publication number
CN109859687A
CN109859687A CN201910263318.1A CN201910263318A CN109859687A CN 109859687 A CN109859687 A CN 109859687A CN 201910263318 A CN201910263318 A CN 201910263318A CN 109859687 A CN109859687 A CN 109859687A
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transistor
signal
scanning signal
grid
light emitting
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CN201910263318.1A
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CN109859687B (en
Inventor
张舜航
王志冲
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Abstract

The application provides a kind of pixel circuit, display circuit and display device.Pixel circuit includes light emitting module, light emitting control module and drive control module.Light emitting module is electrically connected the first power supply signal end.Light emitting control module is electrically connected light emitting module, for controlling shining for light emitting module, light emitting control module includes the first transistor and second transistor, the first transistor and second transistor series connection, the grid of the first transistor is for receiving the first LED control signal, and the grid of second transistor is for receiving the second LED control signal.Drive control module is electrically connected light emitting control module, and drive control module is for receiving the first scanning signal and the second scanning signal, and the first scanning signal and the first LED control signal reverse phase, the second scanning signal and the second LED control signal reverse phase.Display circuit includes pixel circuit and gate driving circuit.Gate driving circuit is connect with pixel circuit, including scanning signal generation module and inverter cricuit.Display device includes display circuit.

Description

Pixel circuit, display circuit and display device
Technical field
This application involves field of display technology more particularly to a kind of pixel circuits, display circuit and display device.
Background technique
The driving of existing OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) pixel circuit is believed Number and LED control signal need respectively from different GOA (Gate Driver on Array, the driving of array substrate row) unit Output, occupied space, display bezel is wider, influences user experience.
Summary of the invention
The application provides a kind of pixel circuit, display circuit and display device, can reduce display bezel.
The one aspect of the application provides a kind of pixel circuit comprising: light emitting module is electrically connected the first power supply signal End;Light emitting control module is electrically connected the light emitting module, for controlling shining for the light emitting module, the light emitting control mould Block includes the first transistor and second transistor, and the first transistor and the second transistor are connected, the first crystal The grid of pipe is for receiving the first LED control signal, and the grid of the second transistor is for receiving the second light emitting control letter Number;And drive control module, it is electrically connected the light emitting control module, the drive control module is for receiving the first scanning signal With the second scanning signal, and first scanning signal and the first LED control signal reverse phase, second scanning signal With the second LED control signal reverse phase.
Further aspect of the application provides a kind of display circuit comprising: above-mentioned display circuit;And gate driving electricity Road is connect with the pixel circuit, including scanning signal generation module and inverter cricuit, and the scanning signal generation module is used for First scanning signal and second scanning signal are generated, the inverter cricuit is used to carry out first scanning signal Reverse phase generates first LED control signal, and second scanning signal is carried out reverse phase, generates the described second luminous control Signal processed.
Another aspect of the application provides a kind of display device comprising: above-mentioned display circuit.
The first transistor and second transistor series connection in the application pixel circuit, the grid of the first transistor is for receiving First LED control signal, the grid of second transistor is for receiving the second LED control signal.The application display circuit includes Pixel circuit and gate driving circuit.Gate driving circuit includes scanning signal generation module and inverter cricuit, and scanning signal produces Raw module is used to the first scanning signal carrying out reverse phase for generating the first scanning signal and the second scanning signal, inverter cricuit, The first LED control signal is generated, and the second scanning signal is subjected to reverse phase, generates the second LED control signal.So it may make First scanning signal and the first LED control signal are exported from the same gate driving circuit, and the second scanning signal and second shines Control signal is exported from the same gate driving circuit, so as to reduce display bezel, improves user experience.
Detailed description of the invention
Fig. 1 show the circuit block diagram of one embodiment of the application display circuit;
Fig. 2 show the circuit diagram of one embodiment of first grid driving circuit shown in FIG. 1;
Fig. 3 show the timing diagram of first grid driving circuit shown in Fig. 2;
Fig. 4 show the circuit diagram of one embodiment of pixel circuit shown in FIG. 1;
Fig. 5 show the driver' s timing figure of pixel circuit shown in Fig. 4;
Fig. 6 show the circuit diagram of another embodiment of pixel circuit shown in Fig. 2.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended The example of the consistent device of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application. Unless otherwise defined, technical term or scientific term used in this application, which are should be in fields of the present invention, has general skill The ordinary meaning that the personage of energy is understood." first " " second " and class used in present specification and claims As word be not offered as any sequence, quantity or importance, and be used only to distinguish different component parts.Equally, " one It is a " or the similar word such as " one " do not indicate that quantity limits yet, but indicate that there are at least one." multiple " or " several " table Show two and two or more.The similar word such as " comprising " or "comprising" means to appear in the member before " comprising " or "comprising" Part or object are covered the element for appearing in " comprising " or "comprising" presented hereinafter or object and its are equal, it is not excluded that its His element or object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, and And may include electrical connection, it is either direct or indirect.In present specification and the appended claims The "an" of used singular, " described " and "the" are also intended to including most forms, unless context clearly shows that Other meanings.It is also understood that term "and/or" used herein refers to and includes one or more associated to list item Purpose any or all may combine.
The pixel circuit of the embodiment of the present application includes light emitting module, light emitting control module and drive control module.Shine mould Block is electrically connected the first power supply signal end.Light emitting control module is electrically connected light emitting module, for controlling shining for light emitting module, shines Control module includes the first transistor and second transistor, and the first transistor and second transistor are connected, the grid of the first transistor Pole is for receiving the first LED control signal, and the grid of second transistor is for receiving the second LED control signal.Drive control Module is electrically connected light emitting control module, and drive control module is for receiving the first scanning signal and the second scanning signal, and first Scanning signal and the first LED control signal reverse phase, the second scanning signal and the second LED control signal reverse phase.Display circuit packet Include pixel circuit and gate driving circuit.Gate driving circuit is connect with pixel circuit, including scanning signal generation module and anti- Circuitry phase, scanning signal generation module are used for for generating the first scanning signal and the second scanning signal, inverter cricuit by first Scanning signal carries out reverse phase, generates the first LED control signal, and the second scanning signal is carried out reverse phase, generates the second luminous control Signal processed.Display device includes display circuit.So it may make the first scanning signal and the first LED control signal from same Gate driving circuit output, the second scanning signal and the second LED control signal are exported from the same gate driving circuit, thus It can reduce display bezel, improve user experience.
Fig. 1 show the circuit block diagram of one embodiment of the application display circuit 100.Display circuit 100 includes pixel Circuit 20 and gate driving circuit 10.Gate driving circuit 10 is connect with pixel circuit 20, including scanning signal generation module 13 With inverter cricuit 14, scanning signal generation module 13 is used to generate the first scanning signal Gate1 and the second scanning signal Gate2, Inverter cricuit 14 is used to the first scanning signal Gate1 carrying out reverse phase, generates the first LED control signal EM1, and second is swept It retouches signal Gate2 and carries out reverse phase, generate the second LED control signal EM2.
In one embodiment, gate driving circuit 10 includes first grid driving circuit 11 and second grid driving circuit 12, first grid driving circuit 11 includes the first scanning signal generation module 110 and the first inverter cricuit 111, the first scanning letter Number generation module 110 is used for for generating the first scanning signal Gate1, the first inverter cricuit 111 by the first scanning signal Gate1 Reverse phase is carried out, the first LED control signal EM1 is generated;Second grid driving circuit 12 includes the second scanning signal generation module 120 and second inverter cricuit 121, for the second scanning signal generation module 120 for generating the second scanning signal Gate2, second is anti- Circuitry phase 121 is used to the second scanning signal Gate2 carrying out reverse phase, generates the second LED control signal EM2.Gate driving circuit 10 the first scanning signal Gate1, the first LED control signal EM1, the second scanning signal Gate2 and the second light emitting controls generated Signal EM2 is exported to pixel circuit 20, drives pixel circuit 20.
Fig. 2 show the circuit diagram of one embodiment of first grid driving circuit 11 shown in FIG. 1.First grid driving Circuit 11 includes the first scanning signal generation module 110 and the first inverter cricuit 111.In the illustrated embodiment, first grid drives Dynamic circuit 11 includes multiple transistor T1-T11 and multiple capacitor C1-C3.Plurality of transistor T1-T11 is P-type crystal Pipe.
In the illustrated embodiment, the first scanning signal generation module 110 includes transistor T1-T7 and capacitor C1-C2, In, the drain electrode of transistor T1 receives the first input signal EI1, and the grid of transistor T1, T2, T3 receive the first clock signal clk, The drain electrode of transistor T5, T7 receive second clock signal CLKB, and the source electrode of transistor T4, T6 connect high voltage signal end VH, brilliant The drain electrode of body pipe T3 connects low voltage signal end VL.The leakage of the grid, transistor T7 of the source electrode connection transistor T2 of transistor T1 The grid of pole and transistor T5;The source electrode of transistor T2 connects the grid and transistor T6 of the source electrode of transistor T3, transistor T4 Grid;The source electrode of the drain electrode connection transistor T5 of transistor T4;The source electrode of the drain electrode connection transistor T7 of transistor T6;Capacitor C1 is connected between the grid and source electrode of transistor T5;Capacitor C2 is connected between the grid and source electrode of transistor T4.First sweeps Signal generator module 110 is retouched according to the first input signal EI1, in the control of the first clock signal clk, second clock signal CLKB The first scanning signal Gate1 of lower generation.And the first scanning signal Gate1 is exported to the first inverter cricuit 111.
In the illustrated embodiment, the first inverter cricuit 111 includes transistor T8-T11 and capacitor C3.Wherein, transistor T8 Grid receive the first clock signal clk, the drain electrode of transistor T8 connects low voltage signal end VL with the drain electrode of transistor T11, The source electrode of transistor T9 connects high voltage signal end VH with the source electrode of transistor T10.The source electrode of transistor T8 connects transistor T9 Drain electrode, transistor T11 grid;The drain electrode of the grid connection transistor T4 of transistor T9 and the grid of transistor T10, crystal The source electrode of the drain electrode connection transistor T11 of pipe T10;One end of capacitor C3 receives the first clock signal clk, and the other end connects crystal The source electrode of pipe T8.First inverter cricuit 111 is according to the first scanning signal Gate1 of input, in the first clock signal clk, second The first LED control signal EM1 is generated under the control of clock signal clk B.First grid driving circuit 11 in illustrated embodiment One embodiment of as one GOA unit.
Fig. 3 show the timing diagram of first grid driving circuit 11 shown in Fig. 2.With reference to Fig. 2 and 3, s1 in the first stage, First input signal EI1 and the first clock signal clk are low level, and second clock signal CLKB is high level, transistor T1, T2, T3 are opened, and then transistor T4, T5 are opened, and the first scanning signal Gate1 exports high level, by the first inverter cricuit 111 Reverse phase, the first LED control signal EM1 export low level;In second stage s2, the first input signal EI1 and the first clock signal CLK is high level, and second clock signal CLKB is low level, and transistor T2, transistor T5 are opened, and transistor T1, T3 are closed, the The grid of one clock signal clk writing transistor T4, transistor T4 are closed, the source of second clock signal CLKB writing transistor T5 Pole, the first scanning signal Gate1 export low level, and by 111 reverse phase of the first inverter cricuit, the first LED control signal EM1 is defeated High level out, and second clock signal CLKB passes through the grid of capacitor C1 coupled transistor T5, keeps its grid level lower, protects Card transistor T5 is sufficiently opened.Since phase III s3, transistor T4, T5 are always on, and the first scanning signal Gate1 is always For high level, correspondingly, the first LED control signal EM1 is low level since the phase III always.
Second grid driving circuit 12 is similar to first grid driving circuit 11 shown in Fig. 2, second grid driving circuit 12 be also one embodiment of a GOA unit.Detailed description is seen above, and details are not described herein.
Fig. 4 show the circuit diagram of one embodiment of pixel circuit 20 shown in FIG. 1.Pixel circuit 20 can be by Fig. 2 Shown in first grid driving circuit 11 generate the first scanning signal Gate1 and the first LED control signal EM1 driving, and by The the second scanning signal Gate2 and the second LED control signal EM2 of the generation (not shown) of second grid driving circuit 12 drive.Picture Plain circuit 20 includes light emitting module 201, light emitting control module 202 and drive control module 203.The electrical connection of light emitting module 20 first Power supply signal end ELVSS.
Light emitting control module 202 is electrically connected light emitting module 201, for controlling shining for light emitting module 201, light emitting control mould Block 202 is connected including the first transistor M1 and second transistor M2, the first transistor M1 and second transistor M2, the first transistor The grid of M1 is for receiving the first LED control signal EM1, and the grid of second transistor M2 is for receiving the second light emitting control letter Number EM2.Drive control module 203 is electrically connected light emitting control module 202, and drive control module 203 is for receiving the first scanning letter Number Gate1 and the second scanning signal Gate2, and the first scanning signal Gate1 and the first LED control signal EM1 reverse phase, second Scanning signal Gate2 and the second LED control signal EM2 reverse phase.In this way, the first scanning signal Gate1 and the first light emitting control letter Number EM1 can be exported by the same gate driving circuit, and the second scanning signal Gate2 and the second LED control signal EM2 can also To be exported by the same gate driving circuit, so as to reduce display bezel, user experience is improved.
With reference to Fig. 4, in one embodiment, the drain electrode of the anode connection second transistor M2 of light emitting module 201, shine mould The cathode of block 201 connects the first power supply signal end ELVSS.In one embodiment, light emitting module 201 includes organic light-emitting diodes Pipe.
In one embodiment, drive control module 203 includes driving transistor M3, the source electrode connection of driving transistor M3 The source electrode of the drain electrode connection the first transistor M1 of second source signal end ELVDD, driving transistor M3.
In one embodiment, drive control module 203 compensates transistor M4, and the grid of compensation transistor M4 is for receiving Second scanning signal, the source electrode of the source electrode connection the first transistor M1 of compensation transistor M4 and the drain electrode for driving transistor M3, are mended The grid of the drain electrode connection driving transistor M3 of transistor M4 is repaid, compensation transistor M4 is used to compensate the driving of driving transistor M3 Voltage.
In one embodiment, drive control module 203 includes reset transistor M5, and the grid of reset transistor M5 is used for The first scanning signal Gate1 is received, the source electrode connection of reset transistor M5 drives the grid of transistor M3, reset transistor M5's Drain electrode is used for the driving voltage of reset drives transistor M3 for receiving reset signal Vintial, reset transistor M5.
In one embodiment, drive control module 203 includes storage capacitance C, and the first pole plate of storage capacitance C, which connects, to be driven The grid of dynamic transistor M3, storage capacitance C are used to store load to the driving voltage of driving transistor M3.
In one embodiment, drive control module 203 includes that voltage keeps transistor M6, and voltage keeps transistor M6's Source electrode connects second source signal end ELVDD or reference power source signal end Vref, second source signal end ELVDD and reference power source Signal end Vref is two different power supply signal terminals.When voltage keeps the source electrode of transistor M6 to connect second source signal end When ELVDD, voltage keeps the source electrode of transistor M6 to disconnect with reference power source signal end Vref;When voltage keeps transistor M6 Source electrode when connecting reference power source signal end Vref, voltage keeps the source electrode of transistor M6 and second source signal end ELVDD disconnected Open connection.Voltage keeps the grid of transistor M6 to keep the leakage of transistor M6 for receiving the second LED control signal EM2, voltage Pole is connected to the second pole plate of storage capacitance C, and voltage keeps transistor M6 to be used to provide in its conducting to driving transistor M3 Stable driving voltage.
In one embodiment, drive control module 203 includes data writing transistor M7, data writing transistor M7's Grid is for receiving the second scanning signal Gate2, the drain electrode of data writing transistor M7 signal VData for receiving data, number The second pole plate of storage capacitance C is connected to according to the source electrode of writing transistor M7, data writing transistor M7 is used for data-signal Storage capacitance C is written in VData.
Fig. 5 show the driver' s timing figure of pixel circuit 20 shown in Fig. 4.The timing diagram show the first scanning signals Gate1, the first LED control signal EM1, the second scanning signal Gate2 and the second LED control signal EM2 are in three periods Level state.With reference to Figure 4 and 5, the source electrode of transistor M6 is kept to connect reference power source signal end Vref with voltage in Fig. 4, and All transistors be P-type transistor for, the working principle of pixel circuit 20 is illustrated.In the case, each crystal Transistor is opened when the gate drive voltage of pipe is low level, and the first power supply signal end ELVSS exports low level signal, the second electricity Source signal end ELVDD exports high level signal, and reset signal Vintial is low level signal.
First period the t1: the first scanning signal Gate1 and the second LED control signal EM2 is low level, reset transistor M5, voltage keep transistor M6 and driving these three transistors of transistor M3 to open, the height of second source signal end ELVDD output The drain electrode that voltage keeps transistor M6 is written in level signal, and the source electrode of reset transistor M5 is written in reset signal Vintial, so that The grid voltage initialization for driving transistor M3, drives the driving voltage Vg=Vintial, Vgs=Vintial- of transistor M3 ELVDD, so that any grey menu that pixel circuit 20 is lighted can improve short-term image retention and ask since same bias state Topic.
Second period the t2: the second scanning signal Gate2 and the first LED control signal EM1 is low level, compensates transistor M4, data writing transistor M7 and driving these three transistors of transistor M3 are opened, and it is brilliant that data write-in is written in data-signal VData The source electrode of body pipe M7, the grid of the high level signal write driver transistor M3 of second source signal end ELVDD output, until driving The driving voltage Vg=ELVDD+Vth of dynamic transistor M3.
Third period the t3: the first LED control signal EM1 and the second LED control signal EM2 is low level, and voltage is kept Transistor M6 is opened, and the high level signal write-in voltage of second source signal end ELVDD output keeps the drain electrode of transistor M6, is driven The driving voltage Vg of dynamic transistor M3 is Vg=ELVDD+Vth+ELVDD-VData via the couple variations of storage capacitance C, first Transistor M1, second transistor M2 and driving transistor M3 are opened simultaneously, form access, glow current flows through light emitting module 201 It is made to shine.Glow current is I=1/2K (Vgs-Vth) * 2=1/2K (ELVDD-VData) at this time2, wherein K is coefficient.It can See, if drift, which occurs, for the threshold voltage vt h of driving transistor M3 will not influence the size of glow current, realizes brilliant to driving The compensation of the threshold voltage vt h of body pipe M3.
When voltage keeps the source electrode of transistor M6 to connect reference power source signal end Vref, the working principle of pixel circuit 20 It is identical as above-mentioned working principle, the main distinction are as follows: in above-mentioned third period t3, the hair of the first LED control signal EM1 and second Optical control signal EM2 is low level, and voltage keeps transistor M6 to open, the high level signal of reference power source signal end Vref output The drain electrode that voltage keeps transistor M6 is written, the driving voltage Vg of driving transistor M3 is via the couple variations of storage capacitance C Vg=Vref+Vth+ELVDD-VData, the first transistor M1, second transistor M2 and driving transistor M3 are opened simultaneously, are formed Access, glow current, which flows through light emitting module 201, makes it shine.Glow current is I=1/2K (Vgs-Vth) * 2=1/2K at this time (Vref-VData)2, wherein K is coefficient.As it can be seen that will not be influenced if drift occurs for the threshold voltage vt h of driving transistor M3 The size of glow current equally realizes the compensation of the threshold voltage vt h to driving transistor M3.Fig. 6 show shown in FIG. 1 The circuit diagram of another embodiment of pixel circuit 20.The grid for being compared to the first transistor M1 in Fig. 4 receives the first hair The grid of optical control signal EM1, second transistor M2 receive the second LED control signal EM2.The main distinction is as follows, in Fig. 6 The grid of the first transistor M1 receives the second LED control signal EM2, and the grid of second transistor M2 receives the first light emitting control Signal EM1.The driver' s timing of pixel circuit 20 shown in fig. 6 is identical as driver' s timing shown in fig. 5, is described in detail referring to upper Text, details are not described herein.
The display device of the embodiment of the present application includes above-mentioned display circuit, which includes: multi-strip scanning line, is used In offer scanning signal;Multiple data lines, for providing data-signal;Multiple display circuits are electrically connected to above-mentioned scan line And data line, multiple display circuits are arranged in array.The display device of the embodiment of the present application includes mobile phone, tablet computer, TV Any products or components having a display function such as machine, laptop, navigator.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.

Claims (10)

1. a kind of pixel circuit, characterized in that it comprises:
Light emitting module is electrically connected the first power supply signal end;
Light emitting control module is electrically connected the light emitting module, for controlling shining for the light emitting module, the light emitting control mould Block includes the first transistor and second transistor, and the first transistor and the second transistor are connected, the first crystal The grid of pipe is for receiving the first LED control signal, and the grid of the second transistor is for receiving the second light emitting control letter Number;And
Drive control module is electrically connected the light emitting control module, and the drive control module is for receiving the first scanning signal With the second scanning signal, and first scanning signal and the first LED control signal reverse phase, second scanning signal With the second LED control signal reverse phase.
2. pixel circuit as described in claim 1, it is characterised in that: the anode of the light emitting module connects second crystal The cathode of the drain electrode of pipe, the light emitting module connects first power supply signal end.
3. pixel circuit as claimed in claim 1 or 2, it is characterised in that: the drive control module includes driving transistor, The source electrode of the driving transistor connects second source signal end, and the drain electrode of the driving transistor connects the first transistor Source electrode.
4. pixel circuit as claimed in claim 3, it is characterised in that: the drive control module includes compensation transistor, institute The grid of compensation transistor is stated for receiving second scanning signal, the source electrode connection described first of the compensation transistor is brilliant The drain electrode of the source electrode of body pipe and the driving transistor, the grid of the drain electrode connection driving transistor of the compensation transistor Pole, the compensation transistor are used to compensate the driving voltage of the driving transistor.
5. pixel circuit as claimed in claim 3, it is characterised in that: the drive control module includes reset transistor, institute The grid of reset transistor is stated for receiving first scanning signal, it is brilliant that the source electrode of the reset transistor connects the driving The grid of body pipe, the drain electrode of the reset transistor is for receiving reset signal, and the reset transistor is for resetting the drive The driving voltage of dynamic transistor.
6. pixel circuit as claimed in claim 3, it is characterised in that: the drive control module includes storage capacitance, described First pole plate of storage capacitance connects the grid of the driving transistor, and the storage capacitance is for storing load to the driving The driving voltage of transistor.
7. pixel circuit as claimed in claim 6, it is characterised in that: the drive control module includes that voltage keeps crystal Pipe, the voltage keep the source electrode of transistor to connect the second source signal end or reference power source signal end, and the voltage is protected The grid of transistor is held for receiving second LED control signal, it is described that the voltage keeps the drain electrode of transistor to be connected to Second pole plate of storage capacitance, the voltage keep transistor stable for providing in its conducting to the driving transistor Driving voltage;
And/or the drive control module includes data writing transistor, the grid of the data writing transistor is for receiving Second scanning signal, the drain electrode of data writing transistor signal for receiving data, the data writing transistor Source electrode be connected to the second pole plate of the storage capacitance, the data writing transistor is used to data-signal institute is written State storage capacitance.
8. a kind of display circuit, characterized in that it comprises:
Pixel circuit as claimed in claim 1;And
Gate driving circuit is connect with the pixel circuit, including scanning signal generation module and inverter cricuit, the scanning letter For generating first scanning signal and second scanning signal, the inverter cricuit is used for described for number generation module Scan signal carries out reverse phase, generates first LED control signal, and second scanning signal is carried out reverse phase, generates Second LED control signal.
9. display circuit as claimed in claim 8, it is characterised in that: the gate driving circuit includes first grid driving electricity Road and second grid driving circuit, the first grid driving circuit include the first scanning signal generation module and the first reverse phase electricity Road, the first scanning signal generation module are used for for generating first scanning signal, first inverter cricuit by institute It states the first scanning signal and carries out reverse phase, generate first LED control signal;The second grid driving circuit includes second Scanning signal generation module and the second inverter cricuit, the second scanning signal generation module is for generating the second scanning letter Number, second inverter cricuit is used to second scanning signal carrying out reverse phase, generates second LED control signal.
10. a kind of display device, which is characterized in that including display circuit as claimed in claim 8 or 9.
CN201910263318.1A 2019-04-02 2019-04-02 Pixel circuit, display circuit and display device Active CN109859687B (en)

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