CN110211536A

CN110211536A - A kind of driving method of display panel and display panel

Info

Publication number: CN110211536A
Application number: CN201910582500.3A
Authority: CN
Inventors: 吴桐; 钱栋
Original assignee: Shanghai Vision Mdt Infotech Ltd
Current assignee: Vision Technology Co ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2019-09-06
Anticipated expiration: 2039-06-29
Also published as: CN110211536B

Abstract

The embodiment of the invention discloses the driving methods of a kind of display panel and display panel.The display panel includes: N scan line；The N number of scan drive circuit being correspondingly arranged with the N scan line；Resolution ratio control module, first resolution control signal wire and the first electric potential signal line；The resolution ratio control module includes M input terminal, M output end, control signal end and the first electric potential signal input terminal；The control signal end is electrically connected with the first resolution control signal wire, the first electric potential signal input terminal is electrically connected with the first electric potential signal line, the M input terminal is electrically connected with junior's shift signal output end of the corresponding scan drive circuit respectively, and the M output end is electrically connected with higher level's shift signal input terminal of the corresponding scan drive circuit respectively.Compared with prior art, the embodiment of the present invention realizes the switching of display resolution, to enrich the scanning mode of scan drive circuit.

Description

A kind of driving method of display panel and display panel

Technical field

The present embodiments relate to field of display technology more particularly to a kind of driving sides of display panel and display panel Method.

Background technique

The continuous promotion of requirement with people to display equipment with the continuous development of display technology, virtual reality (Virtual Reality, VR) shows that equipment enters the visual field of people more and more widely.

In order to realize display effect more abundant, need to show hardware compatibility multi-display function.However, existing aobvious Show that the scanning mode of equipment is single, the display function for resulting in display equipment is single, can not be compatible with more, requirements at the higher level displays Mode.

Summary of the invention

The embodiment of the present invention provides the driving method of a kind of display panel and display panel, to enrich the display of display panel Mode.

In a first aspect, the embodiment of the invention provides a kind of display panels.The display panel includes: N scan line；

The N number of scan drive circuit being correspondingly arranged with the N scan line, N number of scan drive circuit cascade connection, The scan drive circuit includes higher level's shift signal input terminal, junior's shift signal output end and scanning signal output end, institute Scanning signal output end is stated to be electrically connected with the scan line；

Resolution ratio control module, first resolution control signal wire and the first electric potential signal line；

The resolution ratio control module includes that M input terminal, M output end, control signal end and the first electric potential signal are defeated Enter end；The control signal end is electrically connected with the first resolution control signal wire, the first electric potential signal input terminal with The first electric potential signal line electrical connection, the M input terminal are shifted with the junior of the corresponding scan drive circuit respectively Signal output end electrical connection, the M output end are inputted with higher level's shift signal of the corresponding scan drive circuit respectively End electrical connection；The resolution ratio control module is used for the signal according to the first resolution control signal wire, is connected corresponding Input terminal and output end, or the first electric potential signal input terminal of conducting and output end；Wherein, N >=M, N, M are positive integer.

Second aspect, the embodiment of the invention also provides a kind of driving method of display panel, the drivings of the display panel Method is applicable to display panel provided by any embodiment of the invention.The driving method of the display panel includes:

Resolution-control signal is sent to the first resolution control signal wire, Xiang Suoshu the first electric potential signal line is sent First electric potential signal；

According to the signal of the first resolution control signal wire, it is corresponding defeated to control the resolution ratio control module conducting Enter end and output end, drive the corresponding scan drive circuit successively shift and exports scanning signal, display panel is shown as the One display resolution；

Alternatively, according to the signal of the first resolution control signal wire, the resolution ratio control module conducting the is controlled One electric potential signal input terminal and output end drive the corresponding scan drive circuit to stop working, and the display panel is shown For the second display resolution.

The embodiment of the present invention passes through setting resolution ratio control module, higher level's shift signal of control section scan drive circuit Input terminal is electrically connected with junior's shift signal output end of upper level scan drive circuit, alternatively, control section turntable driving is electric Higher level's shift signal input terminal on road is electrically connected with the first electric potential signal line, to realize all or part of turntable driving of driving The function of circuit output scanning signal.Therefore, the embodiment of the present invention can be compatible with a variety of display resolutions, to enrich scanning The scanning mode of driving circuit.And the embodiment of the present invention can according to need the electrical connection of flexible setting resolution ratio control module Scan drive circuit position, be equivalent to and joined tap function in display panel.In addition, the embodiment of the present invention is by When higher level's shift signal input terminal of one electric potential signal input terminal and scan drive circuit is connected, it is equivalent to scan drive circuit A fixed electric potential signal is had input, the internal components of scan drive circuit do not work.Therefore, the embodiment of the present invention is reducing When display resolution, the power consumption of pixel can be not only reduced, the power consumption of scan drive circuit can also be reduced.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；

Fig. 2 is a kind of structural schematic diagram of pixel circuit provided in an embodiment of the present invention；

Fig. 3 is a kind of structural schematic diagram of scan drive circuit cascade connection provided in an embodiment of the present invention；

Fig. 4 is the structural schematic diagram of another scan drive circuit cascade connection provided in an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of another scan drive circuit cascade connection provided in an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；

Fig. 7 is a kind of structural schematic diagram of scan drive circuit provided in an embodiment of the present invention；

Fig. 8 is a kind of driver' s timing schematic diagram of scan drive circuit provided in an embodiment of the present invention；

Fig. 9 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 10 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 11 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 12 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 13 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 14 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 15 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 16 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention；

Figure 17 is a kind of flow diagram of the driving method of display panel provided in an embodiment of the present invention.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.

Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention.Referring to Fig. 1, the display panel packet It includes: N scan line 10, the N number of scan drive circuit 20 being correspondingly arranged with N scan line 10, resolution ratio control module 30, first Resolution-control signal line 40 and the first electric potential signal line 50.

N number of 20 cascade connection of scan drive circuit, scan drive circuit 20 include higher level's shift signal input terminal, junior's shifting Position signal output end and scanning signal output end, scanning signal output end are electrically connected with scan line 10.

Resolution ratio control module 30 (schematically illustrates 4 input terminals including M input terminal, M output end in Fig. 1 With 4 output ends), control signal end and the first electric potential signal input terminal；Control signal end and first resolution control signal wire 40 electrical connections, the first electric potential signal input terminal is electrically connected with the first electric potential signal line 50, M input terminal respectively with corresponding scanning Junior's shift signal output end of driving circuit 20 is electrically connected, and M output end is upper with corresponding scan drive circuit 20 respectively Grade shift signal input terminal electrical connection；Resolution ratio control module 30 is used for the signal according to first resolution control signal wire 40, Corresponding input terminal and output end, or the first electric potential signal input terminal of conducting and output end is connected；Wherein, N >=M, N, M are Positive integer.

Wherein, the M input terminal and M output end of resolution ratio control module 30 are correspondingly arranged.When first resolution controls When the corresponding input terminal and output end of the signal control resolution ratio control module 30 of signal wire 40 are connected, the scanning of upper level is driven Higher level's shift signal input terminal conducting of the scan drive circuit 20 of junior's shift signal output end and next stage of dynamic circuit 20, The scan drive circuit 20 being electrically connected with resolution ratio control module 30 may be implemented normally to export scanning signal.Work as first resolution When the first electric potential signal input terminal and output end of the signal control resolution ratio control module 30 of control signal wire 40 are connected, first The conducting of higher level's shift signal input terminal of electric potential signal input terminal and scan drive circuit 20, is electrically connected with resolution ratio control module 30 The scan drive circuit 20 connect exports the signal of fixed current potential because receiving the fixation current potential of the first electric potential signal line 50, that is, scans Driving circuit 20 stops output scanning signal.When scan drive circuit 20 exports the signal of fixed current potential, corresponding scanning The pixel of line driving electrical connection does not shine, to realize the picture of display different resolution.

Illustratively, the driving method of the display panel includes: to send resolution ratio to first resolution control signal wire 40 Signal is controlled, sends the first electric potential signal to the first electric potential signal line 50；

According to the signal of first resolution control signal wire 40, controls resolution ratio control module 30 and corresponding input terminal is connected And output end, drive corresponding scan drive circuit 20 successively to shift output scanning signal, display panel is shown as the first display Resolution ratio；

Alternatively, according to the signal of first resolution control signal wire 40, control resolution ratio control module 30 the first electricity of conducting Position signal input part and output end, drive corresponding scan drive circuit 20 to stop working, display panel is shown as the second display Resolution ratio.Wherein, the second display resolution is lower than the first display resolution.

The embodiment of the present invention passes through setting resolution ratio control module 30, higher level's displacement of control section scan drive circuit 20 Signal input part is electrically connected with junior's shift signal output end of upper level scan drive circuit 20, alternatively, control section is scanned Higher level's shift signal input terminal of driving circuit 20 is electrically connected with the first electric potential signal line 50, to realize driving whole or portion The function of dividing scan drive circuit 20 to export scanning signal.Therefore, the embodiment of the present invention can be compatible with a variety of display resolutions.With And the embodiment of the present invention can according to need the position of the scan drive circuit 20 of the electrical connection of flexible setting resolution ratio control module 30 It sets, is equivalent to and joined tap function in display panel.In addition, the embodiment of the present invention by the first electric potential signal input terminal and When higher level's shift signal input terminal conducting of scan drive circuit 20, it is equivalent to scan drive circuit 20 and has input a fixation Electric potential signal, the internal components of scan drive circuit 20 do not work.Therefore, the embodiment of the present invention is reducing display resolution When, the power consumption of pixel can be not only reduced, the power consumption of scan drive circuit 20 can also be reduced.

On the basis of the various embodiments described above, optionally, the scanning signal output end of scan drive circuit 20 passes through scanning Line 10 is electrically connected with pixel.Fig. 2 is a kind of structural schematic diagram of pixel circuit provided in an embodiment of the present invention.Referring to fig. 2, optional Ground, the pixel circuit include data signal input VDATA, the first scanning signal input terminal WS_1, the input of the second scanning signal Hold WS_2, the first reference signal end NCP, the second reference signal end VFB, the first power end ELVDD, second source end ELVSS, hair Optical control signal end EMIT, driving transistor MD, input module MS1, reseting module MS2, light emitting control module MS3 and capacitor C1.The control terminal of input module MS1 is electrically connected with the first scanning signal input terminal WS_1, the first end and number of input module MS1 It is electrically connected according to signal input part VDATA, the second end of input module MS1 is electrically connected with the control terminal of driving transistor MD.Capacitor The first end of C1 is electrically connected with the first reference signal end NCP, and the second end of capacitor C1 and the control terminal of driving transistor MD are electrically connected It connects.The first end of driving transistor MD is electrically connected with the first power end ELVDD.The control terminal of reseting module MS2 and the second scanning Signal input part WS_2 electrical connection, the first end of reseting module MS2 are electrically connected with the second reference signal end VFB, reseting module MS2 Second end with driving transistor MD second end be electrically connected.The control terminal of light emitting control module MS3 and LED control signal end The first end of EMIT electrical connection, light emitting control module MS3 is electrically connected with the second end of driving transistor MD, light emitting control module The second end of MS3 is electrically connected with the anode of luminescent device OLED.The cathode of luminescent device OLED is electrically connected with second source end ELVSS It connects.

Illustratively, which is emission control circuit, and scanning signal output end and pixel circuit shine Control terminal EMIT electrical connection.Under typical clock signal output mode, in the first high level pulse stage of higher level's shift signal, Pixel circuit is in reseting stage, and each node and luminescent device anode do and reset inside pixel circuit.In higher level's shift signal When the second high level pulse stage, scanning signal output end exports high level, and pixel circuit and luminescent device OLED are disconnected, shone Device OLED does not shine, and pixel circuit is in data write phase, by data-signal write driver transistor.It can be seen that Under typical clock signal output mode, in a frame, only at the second high level pulse stage of higher level's shift signal, scanning Signal output end exports high level, and pixel circuit and luminescent device OLED are disconnected, and luminescent device OLED does not shine.

Fig. 3 is a kind of structural schematic diagram of scan drive circuit cascade connection provided in an embodiment of the present invention.Referring to Fig. 3, On the basis of the various embodiments described above, optionally, resolution ratio control module 30 includes: M the first data selecting modules 31, and M is a First data selecting module 31 is connected respectively between the M input terminal and M output end of resolution ratio control module 30.

Wherein, the first data selecting module 31 for example can be data selector, the control of the first data selecting module 31 End be electrically connected with the control signal end CTRL of resolution ratio control module 30, the first input end of the first data selecting module 31 and divide The input terminal of resolution control module 30 is electrically connected, the second input terminal and resolution ratio control module 30 of the first data selecting module 31 The electrical connection of the first electric potential signal input terminal, the output of the output end of the first data selecting module 31 and resolution ratio control module 30 End electrical connection.

It is illustrated for M=5 shown in Fig. 3 below, which is emission control circuit.First The first input end of the first data selecting module 31 of grade is electrically connected with enabling signal line STV, the first data selecting module of the first order 31 the second input terminal is electrically connected with the first electric potential signal input terminal VGH；The first of the first data selecting module of the second level 31 is defeated Enter input terminal (i.e. junior's shift signal output end of the first order scan drive circuit 20) electricity of end and resolution ratio control module 30 Connection, the second input terminal of the first data selecting module of the second level 31 are electrically connected with the first electric potential signal input terminal VGH；The third level The first input end of first data selecting module 31 and input terminal (i.e. the 2nd grade of scan drive circuit of resolution ratio control module 30 20 junior's shift signal output end) electrical connection, the second input terminal and enabling signal of the first data selecting module of the third level 31 Line STV electrical connection；The first input end of the first data selecting module of the fourth stage 31 and the input terminal of resolution ratio control module 30 are (i.e. Junior's shift signal output end of N-2 grades of scan drive circuits 20) electrical connection, the of the first data selecting module of the fourth stage 31 Two input terminals are electrically connected with the first electric potential signal input terminal VGH；The first input end of the first data selecting module of level V 31 with The input terminal (junior's shift signal output end of i.e. N-1 grades scan drive circuits 20) of resolution ratio control module 30 is electrically connected, Second input terminal of the first data selecting module of level V 31 is electrically connected with the first electric potential signal input terminal VGH.

When control signal end CTRL is low level (0), higher level's shift signal input of first order scan drive circuit 20 End input enabling signal, higher level's shift signal input terminal of the second level to N grades of scan drive circuits 20 input upper level Junior's shift signal, scan drive circuit 20 export scanning signal step by step, and each row pixel of display panel is shown, are shown as One display resolution.

When control signal end CTRL is high level (1), the first order, the second level, N-1 grades and N grades of turntable driving electricity Higher level's shift signal input terminal on road 20 inputs the first electric potential signal, and higher level's shift signal of third level scan drive circuit 20 is defeated Enter end input enabling signal, higher level's shift signal input terminal of the fourth stage to N grades of scan drive circuits 20 inputs upper level Junior's shift signal, the fourth stage to N grades of scan drive circuits 20 exports scanning signal, the first order, the second level, N- step by step 1 grade and N grades of scan drive circuits 20 export high level, and the first row, the second row, N-1 row and nth row of pixels do not shine, the Four rows to nth row of pixels shine, and are shown as the second display resolution.

It includes M the first data selecting modules 31 that resolution ratio control module 30, which is arranged, in the embodiment of the present invention, realizes two kinds The switching of display resolution.

Fig. 4 is the structural schematic diagram of another scan drive circuit cascade connection provided in an embodiment of the present invention.Referring to figure 4, on the basis of the various embodiments described above, optionally, and resolution ratio control module 30 further include: the second data selecting module 32, the Two data selecting modules 32 are connected to the P grades of input terminals and the first data selecting module of P grade 31 of resolution ratio control module 30 Between.

The control signal end of resolution ratio control module 30 includes first control signal end CTRL1 and second control signal end CTRL2；The control terminal of the first data selecting module of preceding P-1 grade 31 is electrically connected with first control signal end CTRL1；P~(Q-1) The control terminal of the first data selecting module 31 of grade is electrically connected with second control signal end CTRL2；Second data selecting module 32 Control terminal is electrically connected with first control signal end CTRL1.Wherein, 1 < P < Q≤M, P, Q is positive integer.

Illustratively, the whole resolution that display panel is shown in Fig. 4 is 1200 × 1920RGB, specifically, N= 1200, M=480, P=61, Q=89.The control terminal and first control signal end CTRL1 of 1st grade of first data selecting module 31 Electrical connection, first input end are electrically connected with enabling signal line, and the second input terminal is electrically connected with the first electric potential signal input terminal.2nd The control terminal of~60 grade of first data selecting module 31 is electrically connected with first control signal end CTRL1, first input end and upper one Junior's shift signal output end electrical connection of grade scan drive circuit 20, the second input terminal are electrically connected with the first electric potential signal input terminal It connects.The control terminal of 61st grade of first data selecting module 31 is electrically connected with second control signal end CTRL2, the second input terminal and The electrical connection of one electric potential signal input terminal.The control terminal of 62nd~88 grade of first data selecting module 31 and second control signal end CTRL2 electrical connection, first input end are electrically connected with junior's shift signal output end of upper level scan drive circuit 20, and second is defeated Enter end to be electrically connected with the first electric potential signal input terminal.The control terminal of second data selecting module 32 and first control signal end CTRL1 electrical connection, first input end are electrically connected with junior's shift signal output end of the 60th grade of scan drive circuit 20, and second is defeated Enter end to be electrically connected with the first electric potential signal input terminal, the first input end electricity of output end and the 61st grade of first data selecting module 31 Connection.

It includes that the first data selecting module 31 and the second data select that resolution ratio control module 30, which is arranged, in the embodiment of the present invention Module 32, the control signal end of resolution ratio control module 30 include first control signal end CTRL1 and second control signal end CTRL2 realizes the switching of three kinds of display resolutions.

With continued reference to Fig. 4, on the basis of the various embodiments described above, optionally, (M-Q+1)~(M-P) the first data of grade The control terminal of selecting module 31 is electrically connected with second control signal end CTRL2；(M-P+1)~M the first data selecting module of grade 31 control terminal is electrically connected with first control signal end CTRL1.The embodiment of the present invention in this way, can make display panel with When low display resolution is shown, central region of the display picture in entire display panel.

With continued reference to Fig. 4, on the basis of the various embodiments described above, optionally, resolution ratio control module 30 further includes third Data selecting module 33, third data selecting module 33 are connected to the Q grades of input terminals and Q grade of resolution ratio control module 30 Between one data selecting module 31.

The control signal end of resolution ratio control module 30 further includes third control signal end CTRL3；The number of Q~X grade first It is electrically connected according to the control terminal of selecting module 31 with third control signal end CTRL3；The control terminal of third data selecting module 33 with Second control signal end CTRL2 electrical connection.Wherein, Q < X≤M, X are positive integer.

In Fig. 4 illustratively, X=216.The control terminal and third control signal end of 89th grade of first data selecting module 31 CTRL3 electrical connection, the second input terminal are electrically connected with the first electric potential signal input terminal.90th~216 grade of the first data selecting module 31 control terminal is electrically connected with third control signal end CTRL3, the junior of first input end and upper level scan drive circuit 20 The electrical connection of shift signal output end, the second input terminal are electrically connected with the first electric potential signal input terminal VGH.Third data selecting module 33 control terminal is electrically connected with second control signal end CTRL2, the junior of first input end and the 88th grade of scan drive circuit 20 The electrical connection of shift signal output end, the second input terminal is electrically connected with the first electric potential signal input terminal, output end and the 89th grade first The first input end of data selecting module 31 is electrically connected.

It includes the first data selecting module 31, the second data selection mould that resolution ratio control module 30, which is arranged, in the embodiment of the present invention Block 32 and third data selecting module 33, the control signal end of resolution ratio control module 30 include first control signal end CTRL1, Second control signal end CTRL2 and third control signal end CTRL3, realizes the switching of four kinds of display resolutions.

It should be noted that schematically illustrating resolution ratio control module 30 in the above-described embodiments includes three kinds of data The control signal end of selecting module, resolution ratio control module 30 includes three kinds of control signal ends, can be realized and shows resolution in four The switching of rate, not limitation of the invention.In other embodiments, greater number of data choosing can also be set as needed Module and control signal end are selected, realizes the switching of more display resolutions.

With continued reference to Fig. 4, on the basis of the various embodiments described above, optionally, resolution ratio control module 30 further includes the 4th Data selecting module 34, the control signal end of resolution ratio control module 30 further include the 4th control signal end CTRL4.217th grade The control terminal of first data selecting module 31 is electrically connected with the 4th control signal end CTRL4, and the second input terminal and the first current potential are believed The electrical connection of number input terminal.The control terminal of 218th~241 grade of first data selecting module 31 and the 4th control signal end CTRL4 electricity Connection, first input end is electrically connected with junior's shift signal output end of upper level scan drive circuit 20, the second input terminal and First electric potential signal input terminal VGH electrical connection.Control terminal and third control signal end the CTRL3 electricity of 4th data selecting module 34 Connection, first input end is electrically connected with junior's shift signal output end of the 216th grade of scan drive circuit 20, the second input terminal and The electrical connection of first electric potential signal input terminal, output end are electrically connected with the first input end of the 217th grade of first data selecting module 31.

It includes the first data selecting module 31, the second data selection mould that resolution ratio control module 30, which is arranged, in the embodiment of the present invention Block 32, third data selecting module 33 and the 4th data selecting module 34, the control signal end of resolution ratio control module 30 include First control signal end CTRL1, second control signal end CTRL2, third control signal end CTRL3 and the 4th control signal end CTRL4 realizes the switching of five kinds of display resolutions.

With continued reference to Fig. 4, on the basis of the various embodiments described above, optionally, the 961st~984 grade of the first data select mould The control terminal of block 31 is electrically connected with the 4th control signal end CTRL4, under first input end and upper level scan drive circuit 20 Grade shift signal output end electrical connection, the second input terminal are electrically connected with the first electric potential signal input terminal VGH.985th~1112 grade The control terminal of first data selecting module 31 is electrically connected with third control signal end CTRL3, and first input end and upper level scan Junior's shift signal output end of driving circuit 20 is electrically connected, and the second input terminal is electrically connected with the first electric potential signal input terminal VGH. The control terminal of 1113rd~1140 grade of first data selecting module 31 is electrically connected with second control signal end CTRL2, the first input End is electrically connected with junior's shift signal output end of upper level scan drive circuit 20, and the second input terminal and the first electric potential signal are defeated Enter VGH is held to be electrically connected.Control terminal and first control signal end the CTRL1 electricity of 1141st~1200 grade of first data selecting module 31 Connection, first input end is electrically connected with junior's shift signal output end of upper level scan drive circuit 20, the second input terminal and First electric potential signal input terminal VGH electrical connection.

The embodiment of the present invention is in this way, realize the switching of five kinds of display resolutions, including a kind of height integrally shown The low display resolution of display resolution and four kinds of part displays, and the image that four kinds of low resolution are shown is respectively positioned on display panel Central region.

The driving method for the five kinds of display resolutions realized below with regard to the embodiment of the present invention is illustrated.

Illustratively, the driving method of the display panel is, when first control signal end CTRL1 is low level (0), second Control signal end CTRL2 is low level (0), third control signal end CTRL3 is low level (0), the 4th control signal end CTRL4 When for low level (0), scan drive circuits 20 at different levels export scanning signal step by step, and each row pixel of display panel is shown, show It is shown as the first display resolution (1200 × 1920RGB).

When first control signal end, CTRL1 is high level (1), second control signal end CTRL2 is low level (0), third When control signal end CTRL3 is low level (0), the 4th control signal end CTRL4 is low level (0), the 61st~1140 grade of scanning Driving circuit 20 exports scanning signal step by step, the 61st~1140 row pixel light emission, be shown as the second display resolution (1080 × 1920RGB)。

When first control signal end, CTRL1 is high level (1), second control signal end CTRL2 is high level (1), third When control signal end CTRL3 is low level (0), the 4th control signal end CTRL4 is low level (0), the 89th~1113 grade of scanning Driving circuit 20 exports scanning signal step by step, the 89th~1113 row pixel light emission, be shown as third display resolution (1024 × 1920RGB)。

When first control signal end, CTRL1 is high level (1), second control signal end CTRL2 is high level (1), third When control signal end CTRL3 is high level (1), the 4th control signal end CTRL4 is low level (0), the 217th~986 grade of scanning Driving circuit 20 exports scanning signal step by step, the 217th~986 row pixel light emission, be shown as the 4th display resolution (768 × 1920RGB)。

When first control signal end, CTRL1 is high level (1), second control signal end CTRL2 is high level (1), third When control signal end CTRL3 is high level (1), the 4th control signal end CTRL4 is high level (1), the 241st~961 grade of scanning Driving circuit 20 exports scanning signal step by step, the 241st~961 row pixel light emission, be shown as the 5th display resolution (720 × 1920RGB)。

The switching of five kinds of display resolutions may be implemented in the embodiment of the present invention so as a result,.And the embodiment of the present invention exists When by the conducting of higher level's shift signal input terminal of the first electric potential signal input terminal and scan drive circuit 20, it is equivalent to scanning and drives Dynamic circuit 20 has input a fixed electric potential signal, and the internal components of scan drive circuit 20 do not work.Therefore, the present invention is real Example is applied when reducing display resolution, the power consumption of pixel can be not only reduced, the power consumption of scan drive circuit 20 can also be reduced.

It should be noted that the embodiment of the present invention, which schematically illustrates display panel, may be implemented cutting for five kinds of resolution ratio It changes, not limitation of the invention, can according to need flexible setting resolution ratio control module 30 in other embodiments and be electrically connected The position of the scan drive circuit 20 connect is equivalent to and joined tap function in display panel, to realize more displays Mode.

Fig. 5 is the structural schematic diagram of another scan drive circuit cascade connection provided in an embodiment of the present invention.Referring to figure 5, on the basis of the various embodiments described above, optionally, display panel further includes that data controlling signal line (illustratively shows in Fig. 5 Three data control signal wires, respectively data controlling signal line S<0>, data controlling signal line S<1>and data control are gone out Signal wire S<2>) and decoder 60, the input terminal of decoder 60 be electrically connected with data controlling signal line, the output end of decoder 60 It is electrically connected with the control signal end of resolution ratio control module and (schematically illustrates control signal end in Fig. 5 and include the first control Signal end CTRL1, second control signal end CTRL2, third control signal end CTRL3 and the 4th control signal end CTRL4).

Setting decoder 60 of the embodiment of the present invention may be implemented to be realized with the quantity of less control line and export compared with multi signal Function, be advantageously implemented more control functions.Illustratively, 4 control signal ends can be realized with 3 control signals Data-transformation facility, realize five kinds of display resolutions.Specifically, data controlling signal line S<0>, data controlling signal line S<1 >display resolution corresponding with the signal on data control signal wire S<2>is as shown in table 1.

Table 1

Resolution ratio	S<2>	S<1>	S<0>
				1200x1920RGB	0	0	0
1080x1920RGB	1	0	0
				1024x1920RGB	1	0	1
768x1920RGB	1	1	0
				720x1920RGB	1	1	1

On the basis of the various embodiments described above, optionally, resolution ratio control module 30 is electric with preceding M/2 grades of turntable driving respectively Road 20 and the electrical connection of rear M/2 grades of scan drive circuit 20.The embodiment of the present invention is in this way, can make display panel with low aobvious When showing resolution ratio display, non-luminous region shows picture in the central region of entire display panel at the edge of display panel.

It should be noted that the whole display resolution for schematically illustrating display panel in the above-described embodiments is 1200 × 1920, not limitation of the invention.In other embodiments, the resolution ratio that display panel can also be arranged is higher, Or the resolution ratio of setting display panel is lower, can according to need be configured in practical applications.

Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Fig. 7 mentions for the embodiment of the present invention A kind of structural schematic diagram of the scan drive circuit supplied.Referring to Fig. 6 and Fig. 7, on the basis of the various embodiments described above, optionally, Display panel further include: the first clock cable 10 and second clock signal wire 11.Odd level scan drive circuit first when Clock signal input part CLK is electrically connected with the first clock cable 10, the second clock signal input of odd level scan drive circuit End XCLK is electrically connected with second clock signal wire 11.First clock signal input terminal CLK of even level scan drive circuit and The electrical connection of two clock cables 11, the second clock signal input part XCLK and the first clock signal of even level scan drive circuit Line 10 is electrically connected.

The scan drive circuit includes: the first clock signal input terminal CLK, second clock signal input part XCLK, display Switching signal input terminal ENI, higher level's shift signal input terminal STV, junior shift signal output end NEXT, scanning signal output end OUT, latch module 110, the first display control module 210, the second display control module 220 and display switching module 310.

Latch module 110 is moved with the first clock signal input terminal CLK, higher level shift signal input terminal STV and junior respectively Position signal output end NEXT electrical connection, latch module 110 are used to respond the first clock of the first clock signal input terminal CLK input Signal latches higher level's shift signal of higher level's shift signal input terminal STV input, and passes through junior's shift signal output end NEXT Output.

First display control module 210 respectively with second clock signal input part XCLK and junior's shift signal output end NEXT electrical connection；First display control module 210 is used to respond junior's displacement letter of junior shift signal output end NEXT output Number, the second clock signal of second clock signal input part XCLK input is exported.

Second display control module 220 is electrically connected with junior shift signal output end NEXT；Second display control module 220 For responding and exporting junior's shift signal of junior shift signal output end NEXT output.

Show that switching module 310 is aobvious with display switching signal input terminal ENI, the first display control module 210, second respectively Show control module 220 and scanning signal output end OUT electrical connection；Show that switching module 310 is defeated for responding display switching signal The first display control module 210 and scanning signal output end OUT is connected, alternatively, leading in the display switching signal for entering to hold ENI to input Logical second display control module 220 and scanning signal output end OUT.

Wherein, the first clock signal input terminal CLK inputs the first clock signal, second clock signal input part XCLK input Second clock signal, display switching signal input terminal ENI input display switching signal, higher level shift signal input terminal STV input Higher level's shift signal, junior shift signal output end NEXT export junior's shift signal, scanning signal output end OUT output scanning Signal.

Latch module 110 latches higher level's shift signal and refers to, when the first clock signal closes the latch module 110, Latch module 110 can keep level state on last stage.First display control module 210 responds the output of junior's shift signal The junior's shift signal for holding NEXT output, the second clock signal of second clock signal input part XCLK input, which is exported, is Refer to, junior's shift signal be useful signal when, the first display control module 210 output signal by second clock signal control System.The signal of first display control module 210 output can be former second clock signal, be also possible to negated second clock Signal.Second display control module 220 responds and exports junior's shift signal that junior shift signal output end NEXT is exported Refer to, the second display control module 220 is controlled by junior's shift signal, and the signal of the second display control module 220 output can be Former junior's shift signal is also possible to negated junior's shift signal.

The embodiment of the present invention by setting the first display control module 210 and the second display control module 220 with display Switching module 310 is electrically connected, and display switching module 310 is for being connected the first display control module 210 and scanning signal output end OUT realizes the first display pattern；Alternatively, the second display control module of conducting 220 and scanning signal output end OUT, realizes second Display pattern.Compared with prior art, the embodiment of the present invention can be compatible with more display patterns, and realize and switchably show Show plurality of display modes, to enrich the scanning mode of scan drive circuit.

Illustratively, the scanning signal output end OUT of the first display control module 210 control scan drive circuit exports allusion quotation The clock signal (normal timing) of type, the second display control module 220 control the scanning signal output of scan drive circuit When the whole clock signal (global timing) of end OUT output, rolling clock signal (Rolling timing), rolling are blacked Sequential signal, bright one of clock signal (dimming timing) or aging clock signal (aging timing) or more Kind.

If showing the display switching signal of the response display switching signal input terminal ENI input of switching module 310, conducting first Display control module 210 and scanning signal output end OUT, then the scanning signal output end OUT of scan drive circuit exports typical Clock signal.Fig. 8 is that a kind of driver' s timing schematic diagram of scan drive circuit provided in an embodiment of the present invention shows referring to Fig. 8 Example property, the driver' s timing of the scan drive circuit includes first stage T1, second stage T2, phase III T3, fourth stage T4 and the 5th stage T5.

T1 in the first stage, higher level's shift signal are high level (the first high level pulse stage), and second clock signal is Low level.When the first clock signal is low level, latch module 110 latches higher level's shift signal of previous stage, in junior Shift signal output end NEXT continues to output low level.When the first clock signal is high level, the response of latch module 110 first The high level of clock signal exports higher level's shift signal to junior shift signal output end NEXT, i.e., in junior's shift signal Junior's shift signal of output end NEXT output is also high level.First display control module 210 responds junior's shift signal High level, by the low level output of second clock signal, i.e., when junior's shift signal is high level, the first display control module The signal of 210 outputs is consistent with the level of second clock signal, is low level (Low).

In second stage T2, higher level's shift signal is high level (the second high level pulse stage), and the first clock signal is Low level.Latch module 110 latches higher level's shift signal of first stage T1, continues in junior shift signal output end NEXT defeated High level out.When second clock signal is low level, the first display control module 210 responds the height electricity of junior's shift signal It is flat, by the low level output of second clock signal.When second clock signal is high level, 210 sound of the first display control module The high level for answering junior's shift signal, by the high level output of second clock signal, i.e., when junior's shift signal is high level, The signal of first display control module 210 output is consistent with the level of second clock signal, is high level (High).

In phase III T3, higher level's shift signal is low level, and the first clock signal is low level, and second clock signal is Low level.Latch module 110 latches higher level's shift signal of second stage T2, continues in junior shift signal output end NEXT defeated High level out.First display control module 210 responds the high level of junior's shift signal, and the low level of second clock signal is defeated Out, i.e., when junior's shift signal is high level, the signal of the first display control module 210 output and the electricity of second clock signal It is flat consistent, be low level (Low).

In fourth stage T4, higher level's shift signal is low level, and the first clock signal is high level, and second clock signal is Low level.Latch module 110 responds the high level of the first clock signal, higher level's shift signal is exported, in junior's shift signal Junior's shift signal of output end NEXT output is also low level.First display control module 210 responds junior's shift signal Low level and export low level, i.e., junior's shift signal be low level when, the first display control module 210 output signal with Second clock signal is unrelated, exports low level (Low) always.

In the 5th stage T5, higher level's shift signal is low level, and the first clock signal is low level.Latch module 110 is locked The higher level's shift signal for depositing fourth stage T4 continues to output low level in junior shift signal output end NEXT.First display control Molding block 210 in response to junior's shift signal low level and export low level, i.e., junior's shift signal be low level when, first The signal that display control module 210 exports is unrelated with second clock signal, exports low level (Low) always.

And so on, after the 5th stage T5, higher level's shift signal remains low level, scanning signal output end OUT Export low level.

Higher level's shift signal is shifted and is exported by the scan drive circuit as a result, and in the second high electricity of higher level's shift signal The flat pulse stage exports the high level pulse of second clock signal to scanning signal output end OUT, realizes typical timing letter Number output.The scanning signal is transmitted step by step in the scanning signal output end OUT of scan drive circuits at different levels, and driving display panel is real Existing typical case's display pattern.

If showing the display switching signal of the response display switching signal input terminal ENI input of switching module 310, conducting second Display control module 220 and scanning signal output end OUT, then the scanning signal output end OUT of scan drive circuit can be exported Whole clock signal.Fig. 9 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to figure 9, illustratively, the driver' s timing of the scan drive circuit includes the 6th stage T6, the 7th stage T7, the 8th stage T8, the 9th Stage T9, the tenth stage T10 and the 11st stage T11.

In the 6th stage T6, enabling signal is low level.When the first clock signal is low level, latch module 110 is locked The enabling signal for depositing previous stage continues to output low level in junior shift signal output end NEXT.When the first clock signal is When high level, latch module 110 responds the high level of the first clock signal, and enabling signal is exported to junior's shift signal and is exported NEXT is held, i.e., is also high level in first junior's signal of junior shift signal output end NEXT output.Second display control mould Block 220 responds the low level of first junior's signal, and by the low level output, i.e. the second display control module 220 is by the first junior Signal directly exports, and the second display control module 220 exports low level, to export low level in scanning signal output end.

In the 7th stage T7, enabling signal is low level, and the first clock signal is low level.Latch module 110 latches the The enabling signal of six stage T6 continues to output low level in junior shift signal output end NEXT.Second display control module 220 The low level for responding first junior's signal, by the low level output, i.e. the second display control module 220 is straight by first junior's signal Output is connect, the second display control module 220 exports low level, to export low level in scanning signal output end.

In the 8th stage T8, enabling signal is low level, and the first clock signal is high level.Latch module 110 and second The working condition and output signal of display control module 220 are identical as the 6th stage T6, the output of the second display control module 220 Low level, to export low level in scanning signal output end.

In the 9th stage T9, the first clock signal is low level.Latch module 110 latches the starting letter of the 8th stage T8 Number, low level is continued to output in junior shift signal output end NEXT.Second display control module 220 responds first junior's signal Low level, by the low level output, i.e. the second display control module 220 directly exports first junior's signal, second display Control module 220 exports low level, to export low level in scanning signal output end.

In the tenth stage T10, enabling signal is high level, and the first clock signal is high level.The response of latch module 110 the The high level of one clock signal exports enabling signal to junior shift signal output end NEXT, i.e., in junior, shift signal is defeated First junior's signal of outlet NEXT output is also high level.Second display control module 220 responds the height of first junior's signal Level, by the high level output, i.e. the second display control module 220 directly exports first junior's signal, the second display control Module 220 exports high level, to export high level in scanning signal output end.

In the 11st stage T11, enabling signal is high level, and the first clock signal is low level.Latch module 110 latches The enabling signal of tenth stage T10 continues to output high level in junior shift signal output end NEXT.Second display control module The high level of 220 first junior's signals of response, by the high level output, i.e. the second display control module 220 believes the first junior It number directly exports, the second display control module 220 exports high level, to export high level in scanning signal output end.

And so on, after the 11st stage T11, enabling signal remains high level, the second display control module 220 High level is exported, exports high level in scanning signal output end.

The scan drive circuit exports enabling signal as a result, realizes whole clock signal output, and whole clock signal It is identical as the pulse width of enabling signal, the influence of pulse width not subject clock signal.The scanning signal is driven in scannings at different levels The scanning signal output end of dynamic circuit exports simultaneously, and driving display panel realizes whole display pattern.Under whole display pattern, The pixel of all rows opens simultaneously, and simultaneously closes off, to realize that each frame has complete independent picture to show, to avoid The problem of hangover.

Figure 10 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 10, Illustratively, the driver' s timing of the scan drive circuit includes the tenth two-stage T12, the 13rd stage T13, the 14th stage T14, the 15th stage T15, the 16th stage T16 and the 17th stage T17.

In the tenth two-stage T12, enabling signal is low level, and second clock signal is high level.Latch module 110 responds The high level of second clock signal, enabling signal is exported, and shifts letter in the junior of junior shift signal output end NEXT output It number is also low level.Second display control module 220 responds the low level of junior's shift signal, by the low level output, i.e., the Two display control modules 220 directly export junior's shift signal, to export low level in scanning signal output end.

In the 13rd stage T13, enabling signal is low level, and the first clock signal is low level.Latch module 110 latches The enabling signal of tenth two-stage T12 continues to output low level in junior shift signal output end NEXT.Second display control mould Block 220 responds the low level of junior's shift signal, and by the low level output, i.e. the second display control module 220 shifts junior Signal directly exports, to export low level in scanning signal output end.

In the 14th stage T14, enabling signal is low level, and the first clock signal is high level.Latch module 110 and The working condition and output signal of two display control modules 220 are identical as the tenth two-stage T12, defeated in scanning signal output end Low level out.

In the 15th stage T15, enabling signal is low level, and the first clock signal is low level.Latch module 110 and The working condition and output signal of two display control modules 220 are identical as the 13rd stage T13, defeated in scanning signal output end Low level out.

In the 16th stage T16, enabling signal is high level, and the first clock signal is high level.Latch module 110 responds The high level of first clock signal exports enabling signal to junior shift signal output end NEXT, i.e., in junior's shift signal Junior's shift signal of output end NEXT output is also high level.Second display control module 220 responds junior's shift signal High level, by the high level output, i.e. the second display control module 220 directly exports junior's shift signal, thus scanning Signal output end exports high level.

In the 17th stage T17, enabling signal is high level, and the first clock signal is low level.Latch module 110 latches The enabling signal of 16th stage T16 continues to output high level in junior shift signal output end NEXT.Second display control mould Block 220 responds the high level of junior's shift signal, and by the high level output, i.e. the second display control module 220 shifts junior Signal directly exports, to export high level in scanning signal output end.

And so on, after the 17th stage T17, enabling signal remains high level, defeated in scanning signal output end High level out.

Enabling signal is shifted and is exported by the scan drive circuit as a result, is realized and is rolled clock signal output, and rolls timing Signal is identical as the pulse width of enabling signal, the influence of pulse width not subject clock signal.The scanning signal is swept at different levels The scanning signal output end for retouching driving circuit transmits step by step, and driving display panel realizes scroll display mode.When exporting rolling Under the display pattern of sequential signal, the output pulse of odd level scan drive circuit is corresponding with the first clock signal, even level scanning It is corresponding with the first clock signal that driving circuit exports pulse.Each scanning drive signal hands on step by step.

Figure 11 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 11, Illustratively, the driver' s timing of the scan drive circuit includes the 18th stage T18, the 19th stage T19, the 20th stage T20, the 21st stage T21 and the 20th two-stage T22.

In the 18th stage T18, enabling signal is low level, and the first clock signal is low level.Latch module 110 latches Enabling signal on last stage continues to output high level in junior shift signal output end NEXT.Second display control module 220 The high level of junior's shift signal is responded, by the high level output, i.e. the second display control module 220 is straight by junior's shift signal Output is connect, to export high level in scanning signal output end.

In the 19th stage T19, enabling signal is low level, and the first clock signal is high level.Latch module 110 responds The high level of first clock signal, enabling signal is exported, and shifts letter in the junior of junior shift signal output end NEXT output It number is also high level.Second display control module 220 responds the high level of junior's shift signal, by the high level output, i.e., the Two display control modules 220 directly export junior's shift signal, to export high level in scanning signal output end.

In the 20th stage T20, enabling signal is low level.If the first clock signal is low level, latch module 110 is locked Enabling signal on last stage is deposited, continues to output low level in junior shift signal output end NEXT.Second display control module The low level of 220 response junior's shift signals, by the low level output, i.e. the second display control module 220, which shifts junior, to be believed It number directly exports, to export low level in scanning signal output end.If the first clock signal is high level, latch module 110 The high level for responding the first clock signal, enabling signal is exported, and is moved in the junior of junior shift signal output end NEXT output Position signal is also low level.Second display control module 220 responds the low level of junior's shift signal, by the low level output, I.e. the second display control module 220 directly exports junior's shift signal, to export low level in scanning signal output end.

In the 21st stage T21, enabling signal is high level, and the first clock signal is high level.110 sound of latch module Enabling signal is exported to junior shift signal output end NEXT, i.e., shifts and believe in junior by the high level for answering the first clock signal Junior's shift signal of number output end NEXT output is also high level.Second display control module 220 responds junior's shift signal High level, by the high level output, i.e. the second display control module 220 directly exports junior's shift signal, thus sweeping Retouch signal output end output high level.

In the 20th two-stage T22, enabling signal is high level, and the first clock signal is low level.Latch module 110 is locked The enabling signal for depositing the 21st stage T21 continues to output high level in junior shift signal output end NEXT.Second display control Molding block 220 responds the high level of junior's shift signal, and by the high level output, i.e. the second display control module 220 is by junior Shift signal directly exports, to export high level in scanning signal output end.

And so on, after the 20th two-stage T22, enabling signal remains high level, in scanning signal output end Export high level.

Enabling signal is shifted and is exported by the scan drive circuit as a result, is realized and is rolled clock signal output of blacking, and rolls Clock signal of blacking is identical as the pulse width of enabling signal, the influence of pulse width not subject clock signal.The scanning signal It is transmitted step by step in the scanning signal output end of scan drive circuits at different levels, driving display panel, which is realized, rolls display pattern of blacking. Unlike rolling mode, control of the clock signal by the first clock signal for mode output of blacking, and the first clock are rolled The frequency of signal is higher than the frequency of the first clock signal.Under the display pattern that output rolls clock signal of blacking, odd level is swept The output pulse for retouching driving circuit is corresponding with the first clock signal, and even level scan drive circuit exports pulse and the first clock is believed Number correspondence.Each scanning drive signal hands on step by step.Since the clock frequency of the first clock signal is greater than the first clock signal Clock frequency, therefore, the interval of adjacent two-stage scan driving signal output is smaller, and the time of entire display panel is completed in scanning It is shorter.

On the basis of the various embodiments described above, optionally, rolling blacks display pattern in a frame, picture in 80% time Plain circuit write data signal, completes the display of all row pixels in 20% time, i.e. each image is all complete independent aobvious Show, without overlapping between picture and picture, makes to be displayed without ghost.

Figure 12 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 12, Illustratively, the driver' s timing of the scan drive circuit includes the 23rd stage T23, the 24th stage T24 and the 20th Five stage T25.

In the 23rd stage T23, enabling signal is low level, and the first clock signal is high level.110 sound of latch module The high level for answering the first clock signal, enabling signal is exported, in junior's displacement of junior shift signal output end NEXT output Signal is also low level.Second display control module 220 responds the low level of junior's shift signal, by the low level output, i.e., Second display control module 220 directly exports junior's shift signal, to export low level in scanning signal output end.

In the 24th stage T24, the first clock signal is low level.Latch module 110 latches starting on last stage Signal continues to output low level in junior shift signal output end NEXT.Second display control module 220 responds junior's displacement letter Number low level, by the low level output, i.e. the second display control module 220 directly exports junior's shift signal, thus Scanning signal output end exports low level.

In the 25th stage T25, enabling signal is high level.If the first clock signal is high level, latch module 110 The high level for responding the first clock signal, enabling signal is exported, and is moved in the junior of junior shift signal output end NEXT output Position signal is also high level.Second display control module 220 responds the high level of junior's shift signal, by the high level output, I.e. the second display control module 220 directly exports junior's shift signal, to export high level in scanning signal output end.If First clock signal is low level, and latch module 110 latches enabling signal on last stage, in junior's shift signal output end NEXT continues to output high level.Second display control module 220 responds the high level of junior's shift signal, and the high level is defeated Out, i.e., the second display control module 220 directly exports junior's shift signal, to export high electricity in scanning signal output end It is flat.

And so on, after the 25th stage T25, enabling signal repeats output low level pulse, the turntable driving Circuit repeats the working condition of the 23rd stage T25 of stage T23~the 25th.

Enabling signal is shifted and is exported by the scan drive circuit as a result, realizes bright clock signal output, and bright timing The influence of the pulse width of signal not subject clock signal.If the scanning signal is each by the scan drive circuit cascade connection The scanning signal output end of grade scan drive circuit transmits step by step, and driving display panel realizes bright display pattern.With rolling mould Formula and rolling are blacked unlike mode, and the clock signal of bright mode output has multiple low level pulses to export in a frame. Under the display pattern for exporting bright clock signal, the output pulse and the first clock signal pair of odd level scan drive circuit It answers, it is corresponding with the first clock signal that even level scan drive circuit exports pulse.Each scanning drive signal hands on step by step.It is bright Bright mode can be displayed contrast effectively in adjusting display brightness, increase.

Figure 13 is the driver' s timing schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 13, Illustratively, first higher level's signal input part STV and second higher level's signal input part STVR is low level always, therefore when first The second latch and control module 200 can be written in the low level of second higher level's signal input part STVR by clock signal input part CLKR, So that the output of scanning signal output end is in low level state, and this state can be always maintained at down.The scanning is driven as a result, Enabling signal is shifted and is exported by dynamic circuit, realizes the output of aging clock signal, and the pulse width of aging clock signal not by when The influence of clock signal.If by the scan drive circuit cascade connection, scanning of the scanning signal in scan drive circuits at different levels Signal output end transmits step by step, and driving display panel realizes aging display pattern.

The embodiment of the present invention also achieves typical display pattern, whole display mould on the basis of switching resolution ratio display Formula, scroll display mode, rolling are blacked the collection of display pattern, bright this six kinds of display patterns of display pattern and aging display pattern At to be conducive to be promoted the display quality of display panel.

With continued reference to Fig. 6, on the basis of the various embodiments described above, optionally, which further includes forward scan control Signal wire 61 and reverse scan control signal wire 62 processed.Scan drive circuit include forward scan control signal input U2D and Reverse scan control signal input D2U, forward scan control signal input U2D are electrically connected with forward scan control signal wire 61 It connects, reverse scan control signal input D2U is electrically connected with reverse scan control signal wire 62.The embodiment of the present invention is arranged in this way The forward scan and reverse scan for realizing display panel, further enrich the display pattern of display panel.

Figure 14 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 14, upper On the basis of stating each embodiment, optionally, scan drive circuit 20 further includes voltage domain expansion module 410.Voltage domain expanded mode Block 410 is connected between display switching module 310 and scanning signal output end OUT, and voltage domain expansion module 410 is aobvious for responding The output for showing switching module 310, the current potential that display switching module 310 is exported is by between the first current potential V1 and the second current potential V2 Switching, is extended to and switches between third current potential V3 and the 4th current potential V4；Wherein, | V2-V1 | < | V4-V3 |.

Illustratively, the device in latch module 110, the first display control module 210 and the second display control module 220 Using 8V device, the first clock signal input terminal CLK, second clock signal input part XCLK and higher level's shift signal input terminal The voltage domain of the signal of STV input is 0~5V.Show that the first current potential that switching module 310 exports is 0V, the second current potential is 5V. I.e. when the signal for showing that switching module 310 exports is low level, current potential 0V；When the letter that display switching module 310 exports Number be high level when, current potential 5V.The third current potential that voltage domain expansion module 410 exports is -5V, and the 4th current potential is 5V.I.e. When the signal that voltage domain expansion module 410 exports is low level, current potential is -5V；When the letter that voltage domain expansion module 410 exports Number be high potential when, current potential 5V.Voltage domain expansion module 410 is expanded the voltage domain of scanning signal output end OUT by 0~5V Exhibition is -5V~5V.

Voltage domain expanded mode is arranged in the embodiment of the present invention between display switching module 310 and scanning signal output end OUT Block 410 realizes the voltage domain extension of scanning signal output end OUT in the case where applied signal voltage domain is constant.Wherein, The voltage domain of input signal is constant to be conducive to maintain lower circuit power consumption.The extension of output voltage domain is conducive to lower current potential Pixel circuit is resetted, better reduction, to be conducive to promote display effect.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, voltage domain expansion module 410 includes current potential Conversion module 411 and current potential selecting module 412.Current potential conversion module 411 is electrically connected with display switching module 310, current potential conversion Module 411 is used to respond the current potential of the output of display switching module 310, will show that the current potential of the output of switching module 310 carries out Translation, and export；The current potential that current potential conversion module 411 exports switches between the first current potential V1 and third current potential V3.Current potential choosing It selects module 412 to be electrically connected with display switching module 310, current potential conversion module 411 and scanning signal output end OUT respectively, current potential The current potential that selecting module 412 is used to respond display switching module 310 and current potential conversion module 411 exports, will show switching module Second current potential of 310 outputs is exported to scanning signal output end OUT, or the third current potential that current potential conversion module 411 is exported It exports to scanning signal output end OUT.

Illustratively, the voltage domain that display switching module 310 exports is 0~5V, the voltage that current potential conversion module 411 exports Domain is -5~0V.In the display output 0V, 411 output -5V of current potential conversion module of switching module 310, current potential selecting module 412 By -5V voltage output；5V is exported in display switching module 310, when current potential conversion module 411 exports 0V, current potential selecting module 412 By 5V voltage output, it is thus achieved that voltage domain is -5V~5V.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, current potential conversion module 411 includes second anti- The input terminal of phase device 411A and level translator 411B, the second phase inverter 411A are electrically connected with display switching module 310, and second is anti- The input terminal electrical connection of the output end and level translator 411B of phase device 411A.The output end and current potential of level translator 411B selects Select the electrical connection of module 412.Wherein, the second phase inverter 411A is used to show that the current potential that switching module 310 exports to carry out reverse phase, electricity The signal that flat turn parallel operation 411B is used to export the second phase inverter carries out the translation of current potential.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, current potential selecting module 412 includes buffer, First power input of buffer is electrically connected with the first current potential output module, and the second source input terminal and current potential of buffer turn It changes the mold block 411 to be electrically connected, the output end of the input end grounding of buffer, buffer is electrically connected with scanning signal output end OUT.? Show that switching module 310 exports 0V, when 411 output -5V of current potential conversion module, buffer is by -5V voltage output；Switch in display Module 310 exports 5V, when current potential conversion module 411 exports 0V, buffer by 5V voltage output, it is thus achieved that voltage domain be- 5V~5V.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, scan drive circuit 20 further includes aging control Signal input part XAG, the second electric potential signal input terminal VGH1, third transistor M3 and the 4th transistor M4 processed.

The control terminal of third transistor M3 and the control terminal of the 4th transistor M4 are electric with Aging control signal input part XAG Connection, third transistor M3 are connected between the input terminal of buffer and ground；The first end and the second current potential of 4th transistor M4 Signal input part VGH1 electrical connection, the second end of the 4th transistor M4 are electrically connected with the input terminal of buffer.

Wherein, when the signal of third transistor M4 and the 4th transistor M4 response Aging control signal input part XAG, conducting Second electric potential signal input terminal VGH1 and when current potential selecting module 640, the output current potential of current potential selecting module 412 drags down, and realizes The output of aging clock signal.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, display panel further includes second resolution control Signal wire processed.Scan drive circuit 20 further include: first resolution control signal input XENBV, the input of the first electric potential signal Hold GND and resolution ratio control module 510；First resolution control signal input XENBV and second resolution control signal wire Electrical connection.

Resolution ratio control module 510 respectively with first resolution control signal input XENBV, GND and scanning signal Output end GND electrical connection, resolution ratio control module 510 are used to respond first resolution control signal input XENBV input Resolution-control signal, by the signal conduction of ground GND to scanning signal output end OUT.

Illustratively, which is emission control circuit (EMIT circuit), emission control circuit control The turn-on and turn-off of pixel circuit and luminescent device.For example, when emission control circuit export high level when, pixel circuit and shine Device disconnects.When first resolution controls signal for the conducting of resolution ratio control module 510, by the high level of reversed earth signal It is transmitted to scanning signal output end OUT, the pixel circuit being electrically connected with the scan drive circuit and luminescent device disconnect, photophore Part does not shine.In a frame, first resolution control signal can convert between high level and low level, in first resolution When controlling the signal control conducting of resolution ratio control module 510, corresponding pixel does not show picture；Signal is controlled in first resolution When controlling the shutdown of resolution ratio control module 510, corresponding pixel shows picture.I.e. the embodiment of the present invention, which can choose, starts to show Position and terminate the position of display and enable to display panel output different to realize the function of display area control The picture of resolution ratio.The embodiment of the present invention is unlike the resolution ratio handover scheme with tap function, in practical applications, The position for starting display cannot be accurately controlled to first resolution control signal input XENBV input signal and terminates display Position, but the control signal of fine tuning display position may be implemented in the embodiment.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, scan drive circuit 20 further includes second point Resolution control signal input ENBV；The second resolution of second resolution control signal input ENBV controls signal and first The first resolution control signal of resolution-control signal input terminal XENBV is opposite.

Resolution ratio control module 510 includes: the first transistor M1 and the first phase inverter 511.The control of the first transistor M1 End is electrically connected with first resolution control signal input XENBV, and the first end of the first transistor M1 and the first electric potential signal are defeated Enter end electrical connection, the second end of the first transistor M1 is electrically connected with scanning signal output end.First power supply of the first phase inverter 511 Input terminal is electrically connected with first resolution control signal input XENBV, the second source input terminal of the first phase inverter 511 and The input terminal of two resolution-control signal input terminal ENBV electrical connection, the first phase inverter 511 is electrically connected with display switching module, the The output end of one phase inverter 511 is electrically connected with scanning signal output end.

Illustratively, when first resolution control signal is low level, and second resolution control signal is high level, the One phase inverter 511 disconnects, so that output par, c and earlier logic circuit disconnect, output is pulled to high electricity by the first transistor M1 It is flat.

With continued reference to Figure 14, on the basis of the various embodiments described above, optionally, the first transistor M1 can also realize reset Function.

It should be noted that the embodiment of the present invention, which schematically illustrates the first transistor M1, can also realize reset function Can, not limitation of the invention.In other embodiments, the transistor with reset function can also be set as needed, It can according to need and set in practical applications.Two of them is illustrated below, but not as to limit of the invention It is fixed.

Figure 15 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 15, upper On the basis of stating each embodiment, optionally, scan drive circuit 20 further includes reseting controling signal input terminal RST, the second current potential Signal input part VGH1 and second transistor M2.The control terminal of second transistor M2 is electrically connected with reseting controling signal input terminal RST Connect, the first end of second transistor M2 is electrically connected with the second electric potential signal input terminal VGH1, the second end of second transistor M2 with The electrical connection of scanning signal output end.The embodiment of the present invention is in this way, may be implemented to answer scanning signal output end OUT signal Position.

Figure 16 is the structural schematic diagram of another scan drive circuit provided in an embodiment of the present invention.Referring to Figure 16, upper On the basis of stating each embodiment, optionally, scan drive circuit 20 further includes reseting controling signal input terminal RST and the second crystal Pipe M2.The control terminal of second transistor M2 is electrically connected with reseting controling signal input terminal RST；The first end of second transistor M2 with The first end of the first transistor M1 is electrically connected, and the second end of second transistor M2 is electrically connected with the second end of the first transistor M1.

Setting of embodiment of the present invention second transistor M2 and the first transistor M1 is connected in parallel, and avoids second transistor M2 It is connect with the second electric potential signal input terminal VGH1, thus the problem for needing the area that second transistor M2 is arranged larger, this hair The size of bright embodiment transistor greatly reduces, and can reduce the area of LAYOUT, and reduces the quantity of signal wire.

With continued reference to Figure 16, on the basis of the various embodiments described above, optionally, latch module 110 includes: the 4th phase inverter 111, the 5th phase inverter 112, hex inverter 113 and the 7th phase inverter 114.The input terminal of 4th phase inverter 111 and when first The electrical connection of clock signal input part.The output end of the first power input and the 4th phase inverter 111 of 5th phase inverter 112 is electrically connected Connect, the second source input terminal of the 5th phase inverter 112 is electrically connected with the first clock signal input terminal, the 5th phase inverter 112 it is defeated Enter end to be electrically connected with higher level's shift signal input terminal.The first power input and higher level's shift signal of hex inverter 113 are defeated Enter end electrical connection, the output end electrical connection of the 4th phase inverter 111 of second source input terminal of hex inverter 113, the 6th reverse phase The input terminal of device 113 is electrically connected with junior's shift signal output end, the output end of hex inverter 113 and the 5th phase inverter 112 Output end electrical connection.The input terminal of 7th phase inverter 114 is electrically connected with the output end of hex inverter 113, the 7th phase inverter 114 Output end be electrically connected with junior shift signal output end.

It should be noted that can according to need the quantity of setting phase inverter and buffer, in practical applications to be promoted The load capacity of scan drive circuit.

The embodiment of the invention also provides a kind of driving methods of display panel.The driving method of the display panel can fit For display panel provided by any embodiment of the invention.Figure 17 is a kind of drive of display panel provided in an embodiment of the present invention The flow diagram of dynamic method.Referring to Figure 17, the driving method of the display panel the following steps are included:

S110, resolution-control signal is sent to resolution-control signal line, sends the first electricity to the first electric potential signal line Position signal；

S120, according to the signal of resolution-control signal line, control resolution ratio control module be connected corresponding input terminal and Output end, drives corresponding scan drive circuit successively to shift output scanning signal, and display panel is shown as the first display resolution Rate；

Alternatively, it is defeated that the first electric potential signal is connected in control resolution ratio control module according to the signal of resolution-control signal line Enter end and output end, corresponding scan drive circuit is driven to stop working, display panel is shown as the second display resolution.

The embodiment of the present invention is realized by control resolution ratio control module drives all or part of scan drive circuit defeated The function of scanning signal out.Therefore, the embodiment of the present invention can be compatible with a variety of display resolutions.And the embodiment of the present invention can With the position of the scan drive circuit of flexible setting resolution ratio control module as needed electrical connection, it is equivalent in display panel It joined tap function.In addition, the embodiment of the present invention is moved by the higher level of the first electric potential signal input terminal and scan drive circuit When the signal input part conducting of position, it is equivalent to scan drive circuit and has input a fixed electric potential signal, scan drive circuit Internal components do not work.Therefore, the embodiment of the present invention can not only reduce the power consumption of pixel when reducing display resolution, The power consumption of scan drive circuit can also be reduced.

Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.

Claims

1. a kind of display panel characterized by comprising N scan line；

The N number of scan drive circuit being correspondingly arranged with the N scan line, N number of scan drive circuit cascade connection are described Scan drive circuit includes higher level's shift signal input terminal, junior's shift signal output end and scanning signal output end, described to sweep Signal output end is retouched to be electrically connected with the scan line；

The resolution ratio control module includes M input terminal, M output end, control signal end and the first electric potential signal input terminal； The control signal end is electrically connected with the first resolution control signal wire, the first electric potential signal input terminal and described the The electrical connection of one electric potential signal line, the M input terminal are defeated with junior's shift signal of the corresponding scan drive circuit respectively Outlet electrical connection, the M output end are electrically connected with higher level's shift signal input terminal of the corresponding scan drive circuit respectively It connects；The resolution ratio control module is used for the signal according to the first resolution control signal wire, and corresponding input terminal is connected And output end, or the first electric potential signal input terminal of conducting and output end；Wherein, N >=M, N, M are positive integer.

2. display panel according to claim 1, which is characterized in that the resolution ratio control module includes: M first number According to selecting module, the M the first data selecting modules are connected respectively in M input terminal of the resolution ratio control module Between M output end.

3. display panel according to claim 2, which is characterized in that the resolution ratio control module further include: the second number According to selecting module, second data selecting module be connected to the resolution ratio control module P grades of input terminals and P grades of institutes It states between the first data selecting module；

The control signal end of the resolution ratio control module includes first control signal end and second control signal end；It is P-1 grades first The control terminal of first data selecting module is electrically connected with the first control signal end；P~(Q-1) grade first number It is electrically connected according to the control terminal of selecting module with the second control signal end；The control terminal of second data selecting module and institute State the electrical connection of first control signal end；

Wherein, 1 < P < Q≤M, P, Q is positive integer.

4. display panel according to claim 3, which is characterized in that the resolution ratio control module further includes third data Selecting module, the third data selecting module be connected to the resolution ratio control module Q grades of input terminals and Q grades described in Between first data selecting module；

The control signal end of the resolution ratio control module further includes third control signal end；Q~X grades of the first data choosings The control terminal for selecting module is electrically connected with the third control signal end；The control terminal of the third data selecting module and described the The electrical connection of two control signal ends；

Wherein, Q < X≤M, X are positive integer.

5. display panel according to claim 3, which is characterized in that further include data controlling signal line and decoder, institute The input terminal for stating decoder is electrically connected with the data controlling signal line, and the output end of the decoder and the resolution ratio control The control signal end of module is electrically connected.

6. display panel according to claim 3, which is characterized in that the first data choosing of (M-Q+1)~(M-P) grade The control terminal for selecting module is electrically connected with the second control signal end；The (M-P+1)~M grades first data selecting module Control terminal is electrically connected with the first control signal end.

7. display panel according to claim 1, which is characterized in that the resolution ratio control module respectively with it is M/2 grades first The scan drive circuit and the rear M/2 grades of scan drive circuit electrical connection.

8. display panel according to claim 1, which is characterized in that the scan drive circuit includes: the first clock letter Number input terminal, second clock signal input part, display switching signal input terminal, latch module, the first display control module, second Display control module and display switching module；

The latch module respectively with first clock signal input terminal, higher level's shift signal input terminal and the junior The electrical connection of shift signal output end, the latch module are used to respond the first clock of the first clock signal input terminal input Signal, latches higher level's shift signal of higher level's shift signal input terminal input, and is exported by junior's shift signal End output；

First display control module respectively with the second clock signal input part and junior's shift signal output end Electrical connection；First display control module is used to respond junior's shift signal of junior's shift signal output end output, By the second clock signal output of second clock signal input part input；

Second display control module is electrically connected with junior's shift signal output end；Second display control module is used In the junior's shift signal for responding and exporting junior's shift signal output end output；

The display switching module respectively with the display switching signal input terminal, first display control module, described Two display control modules and scanning signal output end electrical connection；The display switching module is for responding the display switching First display control module and the scanning signal output end is connected in the display switching signal of signal input part input, or Second display control module and the scanning signal output end is connected in person.

9. display panel according to claim 8, which is characterized in that the scan drive circuit further include: voltage domain expands Module is opened up, the voltage domain expansion module is connected between the display switching module and the scanning signal output end, described Voltage domain expansion module be used for respond it is described display switching module output, by it is described display switching module output current potential by Switch between first current potential V1 and the second current potential V2, is extended to and switches between third current potential V3 and the 4th current potential V4；Wherein, | V2-V1 | < | V4-V3 |.

10. display panel according to claim 9, which is characterized in that the voltage domain expansion module includes: current potential conversion Module and current potential selecting module；

The current potential conversion module is electrically connected with the display switching module, and the current potential conversion module is for responding the display The current potential of the output of the display switching module is translated, and exported by the current potential of the output of switching module；The current potential turns The current potential of mold changing block output switches between the first current potential V1 and third current potential V3；

The current potential selecting module is exported with the display switching module, the current potential conversion module and the scanning signal respectively End electrical connection, the current potential selecting module are used to respond the electricity of the display switching module and current potential conversion module output Second current potential of the display switching module output is exported to the scanning signal output end, or the current potential is turned by position The third current potential of mold changing block output is exported to the scanning signal output end.

11. display panel according to claim 10, which is characterized in that the current potential selecting module includes: buffer, institute The first power input for stating buffer is electrically connected with the first current potential output module, the second source input of the buffer End is electrically connected with the current potential conversion module, and the input end grounding of the buffer, the output end of the buffer is swept with described Retouch signal output end electrical connection.

12. display panel according to claim 11, which is characterized in that the scan drive circuit further includes Aging control Signal input part, the second electric potential signal input terminal, third transistor and the 4th transistor；

The control terminal of the third transistor and the control terminal of the 4th transistor with the Aging control signal input part Electrical connection, the third transistor are connected between the input terminal of the buffer and the ground；The of 4th transistor One end is electrically connected with the second electric potential signal input terminal, the second end of the 4th transistor and the input terminal of the buffer Electrical connection.

13. display panel according to claim 11, which is characterized in that further include second resolution control signal wire；

The scan drive circuit further include: first resolution control signal input, the first electric potential signal input terminal and resolution Rate control module；The first resolution control signal input is electrically connected with the second resolution control signal wire；

The resolution ratio control module respectively with the first resolution control signal input, described the and scanning signal Output end electrical connection, the resolution ratio control module are used to respond the resolution of the first resolution control signal input input Rate controls signal, by the signal conduction of the first electric potential signal input terminal input to the scanning signal output end.

14. display panel according to claim 13, which is characterized in that the scan drive circuit further includes the second resolution Rate control signal input；The second resolution of the second resolution control signal input controls signal and described first point The first resolution control signal of resolution control signal input is opposite；

The resolution ratio control module includes: the first transistor and the first phase inverter；

The control terminal of the first transistor is electrically connected with the first resolution control signal input, the first transistor First end be electrically connected with the first electric potential signal input terminal, the second end of the first transistor and the scanning signal are defeated Outlet electrical connection；

First power input of first phase inverter is electrically connected with the first resolution control signal input, and described The second source input terminal of one phase inverter is electrically connected with the second resolution control signal input, first phase inverter Input terminal is electrically connected with the display switching module, and the output end of first phase inverter is electrically connected with the scanning signal output end It connects.

15. display panel according to claim 14, which is characterized in that the scan drive circuit further includes resetting control Signal input part and second transistor；

The control terminal of the second transistor is electrically connected with the reseting controling signal input terminal；

The first end of the second transistor is electrically connected with the first end of the first transistor, and the second of the second transistor End is electrically connected with the second end of the first transistor.

16. display panel according to claim 8, which is characterized in that the scan drive circuit further includes resetting control Signal input part, the second electric potential signal input terminal and second transistor；

The control terminal of the second transistor is electrically connected with the reseting controling signal input terminal, and the first of the second transistor End is electrically connected with the second electric potential signal input terminal, the second end of the second transistor and scanning signal output end electricity Connection.

17. a kind of driving method of display panel as described in claim 1 characterized by comprising

Resolution-control signal is sent to the first resolution control signal wire, Xiang Suoshu the first electric potential signal line sends first Electric potential signal；

According to the signal of the first resolution control signal wire, controls the resolution ratio control module and corresponding input terminal is connected And output end, drive the corresponding scan drive circuit successively to shift output scanning signal, it is aobvious that display panel is shown as first Show resolution ratio；

Alternatively, controlling first electricity of resolution ratio control module conducting according to the signal of the first resolution control signal wire Position signal input part and output end, drives the corresponding scan drive circuit to stop working, and the display panel is shown as the Two display resolutions.