CN108510953A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN108510953A CN108510953A CN201810343635.XA CN201810343635A CN108510953A CN 108510953 A CN108510953 A CN 108510953A CN 201810343635 A CN201810343635 A CN 201810343635A CN 108510953 A CN108510953 A CN 108510953A
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- drive circuit
- electrically connected
- scan drive
- pressure sensitive
- display panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A kind of display panel of offer of the embodiment of the present invention and display device, are related to display technology field, can reduce the occupied space of output signal line of pressure sensitive sensor, in favor of the realization of narrow frame.Display panel includes：It is electrically connected to the first scan drive circuit of every scan line；Multiple pressure sensitive sensors；Biasing voltage signal line；Switch unit corresponding with each pressure sensitive sensor, the first end of switch unit is electrically connected to corresponding pressure sensitive sensor, the second end of switch unit is electrically connected to biasing voltage signal line, and the control terminal of switch unit is used to control the break-make of first end and the second end；It is electrically connected to the second scan drive circuit of the control terminal of each switch unit, the second scan drive circuit is used to provide scanning signal for the control terminal of multiple switch unit；Clock cable, clock cable are connected to the first scan drive circuit and the second scan drive circuit.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of display panel and display devices.
Background technology
In order to realize more various and flexible man-machine interaction mode, current touch-control display panel is in addition to that can detect touch-control
Outside position, additionally it is possible to the size of press pressure in detection panel.In detection panel press pressure size can by using favour this
Lead to the pressure sensitive sensor of electrical bridge principle to realize, in the ideal situation, the output signal of pressure sensitive sensor is 0V, when
When applying pressure to panel, panel deforms upon, and the resistance value of pressure sensitive sensor changes, the output of pressure sensitive sensor
With the relevant signal value of panel deformation degree.
Current display panel generally includes multiple pressure sensitive sensors, and shared two of multiple pressure sensitive sensors are defeated
Go out signal wire, but need that two output signal lines are separately provided for each pressure sensitive sensor, that is, N number of pressure sensitive passes
Sensor needs 2N+2 signal lines.Therefore, the signal wire needed for pressure sensitive sensor can occupy larger frame space, unfavorable
In the realization of narrow frame.
Invention content
A kind of display panel of offer of the embodiment of the present invention and display device can reduce the output letter of pressure sensitive sensor
Number occupied space of line, in favor of the realization of narrow frame.
On the one hand, the embodiment of the present invention provides a kind of display panel, including：
In multiple sub-pixels of array distribution；
Scan line corresponding with sub-pixel described in every row；
It is electrically connected to the first scan drive circuit of every scan line, first scan drive circuit is for being more
Scan line described in item provides scanning signal；
Multiple pressure sensitive sensors；
Biasing voltage signal line；
Switch unit corresponding with each pressure sensitive sensor, the first end of the switch unit are electrically connected to pair
The second end of the pressure sensitive sensor answered, the switch unit is electrically connected to the biasing voltage signal line, described to open
The control terminal for closing unit is used to control the break-make of the first end and the second end；
It is electrically connected to the second scan drive circuit of the control terminal of each switch unit, the second turntable driving electricity
Road is used to provide scanning signal for the control terminal of multiple switch units；
Clock cable, the clock cable are connected to first scan drive circuit and second turntable driving
Circuit.
On the other hand, the embodiment of the present invention also provides a kind of display device, including above-mentioned display panel.
Display panel in the embodiment of the present invention and display device realize filling for sub-pixel by the first scan drive circuit
The drive control of pressure sensitive sensor is realized in electric control by the second scan drive circuit, so that multiple pressure sensitives sense
Device works at different times so that multiple pressure sensitive sensors can be with the identical output signal line of time-sharing multiplex, without single
It is solely that output signal line is separately provided in each pressure sensitive sensor, to reduce the occupied sky of pressure sensitive sensor
Between, in favor of the realization of narrow frame；Meanwhile first scan drive circuit and the second scan drive circuit common clock signal wire,
Individual clock cable is set without being individually for the second scan drive circuit, to further reduce the number of cabling in panel
Amount, in favor of the realization of narrow frame.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of display panel in the embodiment of the present invention；
Fig. 2 is a kind of connection relationship diagram of pressure sensitive sensor in Fig. 1；
Fig. 3 is another connection relationship diagram of pressure sensitive sensor in Fig. 1；
Fig. 4 is another connection relationship diagram of pressure sensitive sensor in Fig. 1；
Fig. 5 is a kind of clock signal figure in Fig. 3；
Fig. 6 is another clock signal figure in Fig. 3；
Fig. 7 is a kind of structural schematic diagram of pressure sensitive sensor in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another pressure sensitive sensor in the embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of display device in the embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, is not intended to be limiting
The present invention.In the embodiment of the present invention and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings.
As depicted in figs. 1 and 2, Fig. 1 is a kind of structural schematic diagram of display panel in the embodiment of the present invention, and Fig. 2 is in Fig. 1
A kind of connection relationship diagram of pressure sensitive sensor, the embodiment of the present invention provide a kind of display panel, including：In array point
Multiple sub-pixels 10 of cloth；Scan line 11 corresponding with every row sub-pixel, data line 12 corresponding with each column sub-pixel 10 are that is, more
A sub-pixel 10 is limited by multi-strip scanning line 11 and 12 transposition insulator of multiple data lines；It is electrically connected to the first of every scan line 11
Scan drive circuit 21, the first scan drive circuit 21 is used to provide scanning signal for multi-strip scanning line 11, so that each row picture
Element 10 charges line by line under the control of scan line 11；Multiple pressure sensitive sensors 3；Biasing voltage signal line 4；With it is each
The first end of 3 corresponding switch unit 5 of pressure sensitive sensor, switch unit 5 is electrically connected to corresponding pressure sensitive sensor
3, the second end of switch unit 5 is electrically connected to biasing voltage signal line 4, the control terminal of switch unit 5 for control first end with
The break-make of second end；It is electrically connected to the second scan drive circuit 22 of the control terminal of each switch unit 5, the second turntable driving electricity
Road 22 is used to provide scanning signal for the control terminal of multiple switch unit 5；Clock cable 6, clock cable 6 are connected to first
Scan drive circuit 21 and the second scan drive circuit 22.
Specifically, in the course of work of display panel, clock cable 6 is the first scan drive circuit 21 and second simultaneously
Scan drive circuit 22 provides clock signal, so that the first scan drive circuit 21 and the second scan drive circuit 22 are believed in clock
Turntable driving function is realized respectively under the control of number line 6.Wherein, the first scan drive circuit 21 is used to provide for scan line 11 and sweep
Signal is retouched, for example, in liquid crystal display panel, each sub-pixel 10 is correspondingly arranged on pixel electrode 7 and display thin film transistor (TFT)
8, the first end of display thin film transistor (TFT) 8 is connected to corresponding data line 12, and the second end of display thin film transistor (TFT) 8 is connected to pair
The control terminal of the pixel electrode 7 answered, display thin film transistor (TFT) 8 is connected to corresponding scan line 11, when scan line 11 is electric conduction
Usually, the display thin film transistor (TFT) 8 being connect with the scan line 11 is connected, and the data-signal on data line 12 passes through corresponding display
Thin film transistor (TFT) 8 is transmitted to corresponding pixel electrode 7, to realize the charging to sub-pixel 10, pixel electrode 7 is made to be charged to institute
Required voltage, liquid crystal display panel further include public electrode and liquid crystal, electricity of the liquid crystal between pixel electrode 7 and public electrode
Corresponding angle is deflected under the control of field, there is corresponding display grayscale, the normal display of realization to control corresponding sub-pixel 10
Function.Second scan drive circuit 22 is used to provide scanning signal for the control terminal of each switch unit 5, to control each switch unit
5 are connected at different times, and switch unit 5 is series between pressure sensitive sensor 3 and biasing voltage signal line 4, i.e., in fact
It is no pressure sensitive at different times respectively to have showed through the second scan drive circuit 22 control biasing voltage signal line 4
Sensor 3 provides biasing voltage signal, to drive multiple pressure sensitive sensors 3 to work at different times, in this way, multiple pressures
The output end of power inductive pick-up 3 can connect identical output signal line, so that driving chip obtains not at different times
With the output signal of pressure sensitive sensor 3, to realize pressure detecting function.
Display panel in the embodiment of the present invention realizes the charge control of sub-pixel by the first scan drive circuit, leads to
The drive control that the second scan drive circuit realizes pressure sensitive sensor is crossed, so that multiple pressure sensitive sensors are different
Moment works so that multiple pressure sensitive sensors can be with the identical output signal line of time-sharing multiplex, without being individually for each pressure
Output signal line is separately provided in power inductive pick-up, to reduce the occupied space of pressure sensitive sensor, in favor of narrow
The realization of frame；Meanwhile first scan drive circuit and the second scan drive circuit common clock signal wire, without being individually for
Individual clock cable is arranged in two scan drive circuits, to further reduce the quantity of cabling in panel, in favor of narrow
The realization of frame.
Optionally, as shown in figure 3, Fig. 3 is another connection relationship diagram of pressure sensitive sensor in Fig. 1, first
Scan drive circuit 21 includes multiple cascade first shift registers 210, the output end of each first shift register 210
OUT is electrically connected with every one-to-one correspondence of scan line 11；Second scan drive circuit 22 includes multiple cascade second shift LDs
The output end OUT of device 220, each second shift register 220 is electrically connected with the control terminal of each switch unit 5 one-to-one correspondence.
Specifically, for example, scan line 11 has n items, including the first scan line 111, the second scan line 112, third scan line
113 ..., the n-th scan line 11n, each shift register usually require the control of multiple and different clock signals, for example, first
Shift register 210 has n, including the first shift register of the first order 211, the first shift register of the second level 212, the third level
First shift register 213 ..., n-th grade of first shift register 21n, when each first shift register 210 includes first
Clock signal end CK and second clock signal end XCK, clock cable 6 include the first clock cable S1 and second clock signal wire
S2, the first clock signal terminal CK and even level of first the first shift register of clock cable S1 connection odd levels 210
The second clock signal end XCK of one shift register 210, second clock signal wire S2 connection the first shift registers of odd level
210 second clock signal end XCK and the first clock signal terminal CK of the first shift register of even level 210 removes last
Except the first shift register 21n of grade, the output end OUT of every grade of first shift register 210 is connected to next stage shift LD
Device 210 input terminal IN (such as the output end OUT of the first shift register of the first order 211 be connected to the second level first displacement post
The input terminal IN of storage 212).By taking structure shown in Fig. 3 as an example, pressure sensitive sensor 3 includes three, but the present invention is real
It applies example to be not construed as limiting the number of pressure sensitive sensor 3, the output end OUT of the second shift register of the first order 220 passes through
First output control line TC1 is connected to the control terminal of first 3 corresponding switch unit 5 of pressure sensitive sensor, the second level
It is right that the output end OUT of two shift registers 220 by the second output control line TC2 is connected to second pressure sensitive sensor 3
The output end OUT of the control terminal for the switch unit 5 answered, the second shift register of the third level 220 passes through third output control line TC3
It is connected to the control terminal of 3 corresponding switch unit 5 of third pressure sensitive sensor.Each second shift register 220 is same
Including the first clock signal terminal CK and second clock signal end XCK, the displacement of the first clock cable S1 connections odd level second is posted
The second clock signal end XCK of first clock signal terminal CK of storage 220 and the second shift register of even level 220, second
The second clock signal end XCK and even level second of the second shift register of clock cable S2 connection odd levels 220 are shifted
First clock signal terminal CK of register 220, every grade of second shift register 220 further includes cascade signal end NEX, removes last
Except the second shift register 220 of grade, the cascade signal end NEX of every grade of second shift register 220 is connected to next stage second
The input terminal IN of shift register 220.In the first scan drive circuit 21, per the output of the first shift register of level-one 210
Signal is in addition to being provided in corresponding scan line 11, the break-make for controlling display thin film transistor (TFT), is additionally operable to export to next
The input terminal IN of the first shift register 210 of grade, so that the first shift register of next stage 210 is shifted in response to upper level first
The output signal of register 210 generates the output signal of the first shift register of this grade 210, to realize entire first turntable driving
The scan control function of circuit 21；Similarly, in the second scan drive circuit 22, the second shift register of the first order 220 is removed
Except, the cascade signal end NEX per the second shift register of level-one 220 in response to the second shift register of upper level 220 is exported
Signal generate the output signal of the second shift register of this grade 220, to realize the scanning of entire second scan drive circuit 22
Control function.It should be noted that in structure shown in fig. 3, each first shift LD in the first scan drive circuit 21
Cascade between device 210 is output end OUT connection the first shift registers of next stage by the first shift register of this grade 210
210 input terminal IN is realized, and the cascade in the second scan drive circuit 22 between each second shift register 220 is logical
The input terminal IN for crossing cascade signal end the second shift register of NEX connection next stage 220 of the second shift register of this grade 220 comes
It realizes, however, it is to be understood that ground, above-mentioned cascade system is only illustrated, and the embodiment of the present invention is for shift registers at different levels
Cascade system is not construed as limiting, for example, the first shift register at different levels can also pass through the cascade signal end of this grade of shift register
The input terminal of next stage shift register is connected to realize, the second shift registers at different levels can also pass through this grade of shift register
The input terminal of output end connection next stage shift register realize, as long as by cascade mode, make this grade of shift LD
Signal caused by device is used as the input signal of next stage shift register.
Optionally, as shown in figure 3, each first shift register 210 and each second shift register 220 include resetting
Signal end RE；Display panel further includes reseting signal line S3, and reseting signal line S3 is electrically connected to each first shift register 210
With the reset signal end RE of each second shift register 220.
Specifically, it is connected together with the shift register in the second scan drive circuit 22 due to the first scan drive circuit 21
One reseting signal line S3, can be further reduced the quantity of signal wire, in favor of the realization of narrow frame.
Optionally, as shown in figure 3, each pressure sensitive sensor 3 includes the first output end OUT1 and second output terminal
OUT2；Display panel further includes the first output signal line OL1 and the second output signal line OL2, and the first output signal line OL1 is electrically connected
The first the output end OUT1, the second output signal line OL2 for being connected to each pressure sensitive sensor 3 is electrically connected to each pressure sensitive
The second output terminal OUT2 of sensor 3.
Optionally, as shown in figure 3, each pressure sensitive sensor 3 includes first input end IN1 and the second input terminal IN2；
Biasing voltage signal line 4 includes the first biasing voltage signal line IL1 and the second biasing voltage signal line IL2；Each switch unit 5
Including first film transistor T1, the first end of first film transistor T1 is electrically connected to corresponding pressure sensitive sensor 3
The second end of first input end IN1, first film transistor T1 are electrically connected to the first biasing voltage signal line IL1, the first film
The control terminal of transistor T1 is electrically connected to the second scan drive circuit 22；Second biasing voltage signal line IL2 is electrically connected to each
Second input terminal IN2 of pressure sensitive sensor 3.
Specifically, pressure sensitive sensor 3 include two input terminals, when the two input terminals respectively with the first bias voltage
Signal wire IL1 and the second biasing voltage signal line IL2 can make electric current caused by bias voltage flow through pressure sensitive when being connected to
Sensor 3, meeting driving pressure inductive pick-up 3 work, if wherein there are one input terminals not to believe with corresponding bias voltage
The connection of number line, then pressure sensitive sensor 3 can not just work, therefore, as shown in figure 3, can only make pressure sensitive sensor 3
First input end IN1 is connected to the first biasing voltage signal line IL1 by first film transistor T1, passes through the first film crystal
The break-make of pipe T1 can control whether corresponding pressure sensitive sensor 3 works.
Optionally, the second biasing voltage signal line IL2 is electrically connected to ground terminal.
Specifically, it is not necessarily to be individually for the second individual signal output end of biasing voltage signal line IL2 offers in this way, you can real
It is now that pressure sensitive sensor 3 provides bias voltage.
Optionally, as shown in figure 4, Fig. 4 is another connection relationship diagram of pressure sensitive sensor in Fig. 1, each
Switch unit 5 further includes the second thin film transistor (TFT) T2, and the first end of the second thin film transistor (TFT) T2 is electrically connected to corresponding feeling of stress
The second end of the first input end IN1, the second thin film transistor (TFT) T2 of inductive sensing device 3 are electrically connected to ground terminal GND, and the second film is brilliant
The control terminal of body pipe T2 is electrically connected to the control terminal of corresponding first film transistor T1；First film transistor T1 and second is thin
Film transistor T2 is the transistor of opposite Control Cooling.
Specifically, for example, first film transistor T1 is N-type transistor, the second P-type transistor of thin film transistor (TFT) T2；
Alternatively, first film transistor T1 is P-type transistor, the second N-type transistor of thin film transistor (TFT) T2.In display panel work
In the process, in each switch unit 5, first film transistor T1 and the second thin film transistor (TFT) T2 are in opposite shape always
State, when first film transistor T1 is connected, the second thin film transistor (TFT) T2 cut-offs, when first film transistor T1 ends, the
Two thin film transistor (TFT) T2 conductings.That is, when pressure sensitive sensor 3 works, the pressure sensitive sensor 3 corresponding
Two thin film transistor (TFT) T2 cut-offs, avoid being connected between ground terminal GND and the first input end IN1 of pressure sensitive sensor 3；Work as pressure
When power inductive pick-up 3 does not work, 3 corresponding second thin film transistor (TFT) T2 of the pressure sensitive sensor is connected, at this time ground terminal
It is connected between GND and the first input end IN1 of pressure sensitive sensor 3, when receiving electrostatic on the first output signal line OL1
When, electrostatic can be transmitted to ground terminal GND to realize Electro-static Driven Comb by the second thin film transistor (TFT) T2 in time, quiet to reduce
Electricity causes stress the probability of 3 breakdown damage of inductive pick-up by pressure sensitive sensor 3.
Optionally, as shown in Figure 3 and Figure 5, Fig. 5 is a kind of clock signal figure in Fig. 3, and display panel further includes：It is electrically connected
It is connected to the driving chip (not shown) of the first scan drive circuit 21 and the second scan drive circuit 22, driving chip is used for
In each frame, the first scan drive circuit 21 of control after completing to scan, swept by the second scan drive circuit 22 of control
It retouches.
Specifically, for example, driving chip includes the first initial signal end STV1 and the second initial signal end STV2, first sweeps
The input terminal IN for retouching the first shift register of the first order 210 in driving circuit 21 is connected to the first initial signal end STV1, and second
The input terminal IN of the second shift register of the first order 220 is connected to the second initial signal end STV2 in scan drive circuit 22.
In per frame time, the first clock cable S1 and second clock signal wire S2 export different clock signals respectively.In every frame
Preparation stage t00, reseting signal line S3, which are provided, enables level, controls each first shift register 210 and each second shift LD
Device 220 resets, and is provided in the starting stage t0 of every frame, the first initial signal end STV1 and enables level, and the displacement of the first order first is posted
Storage 210 is shifted in response to the enabled level of the first initial signal end STV1, and t1 outputs in the first stage enable level, real
The charging of existing the first row sub-pixel 10, the first shift register of the second level 210 are defeated in response to the first order the first shift register 210
The enabled level gone out enables level in second stage t2 outputs, realizes the charging of the second row sub-pixel 10, and so on, until
N-th grade of first shift register 210 enables level in the tn outputs of n-th order section, realizes the charging of line n sub-pixel 10, at this point, i.e.
Display function is completed, subsequently into the (n+1)th stage tn+1, the second initial signal end STV2 outputs enable level, the first order the
Two shift registers 220 are shifted in response to the enabled level of the second initial signal end STV2, are exported in the n-th+2 stage tn+2
Enabled level is to the first output control line TC1, to control corresponding first pressure sensitive sensor 3 work, the second level the
Two shift registers 220 are moved in response to the signal of the cascade signal end NEX outputs of the second shift register of the first order 220
Position exports in the n-th+3 stage tn+3 and enables level to the second output control line TC2, to control corresponding second feeling of stress
Inductive sensing device 3 works, cascade signal of the second shift register of the third level 220 in response to the second shift register of the second level 220
The signal of end NEX outputs is shifted, and is exported in the n-th+4 stage tn+4 and is enabled level to third output control line TC3, to control
It makes corresponding third pressure sensitive sensor 3 to work, that is, realizes the first scan drive circuit 21 of control and complete scanning
Afterwards, the second scan drive circuit 22 of control is scanned.
It should be noted that structure shown in Fig. 3 is when clock signal corresponding with Fig. 5 coordinates, in addition to by the first order
The input terminal IN of two shift registers 220 is connected to outside the mode of driving chip, can also be by the second shift register of the first order
220 input terminal IN is connected to the output end of n-th grade (afterbody) the first shift register 210, even if afterbody first
Shift register 210 and the second shift register of the first order 220 are cascaded, and can equally be realized through the first turntable driving electricity
Road 21 drives display panel to complete to drive each pressure sensitive sensor 3 to be pressed by the second scan drive circuit 22 after charging
Power detects.The first scan drive circuit 21 is controlled after completing to scan, the second scan drive circuit 22 of control is scanned, can
To avoid the second displacement in the first shift register 210 and the second scan drive circuit 22 in the first scan drive circuit 21
Register 220 exports conduction level simultaneously, i.e., at any time, only there are one shift registers can be in output conduction level
State, in this way, the load all same of clock cable 6 at any time, to avoid since clock cable 6 is in different moments
Load difference caused by show unevenness.
Optionally, as shown in Figure 3 and Figure 6, Fig. 6 is another clock signal figure in Fig. 3, and display panel further includes：Electricity
It is connected to the driving chip (not shown) of the first scan drive circuit 21 and the second scan drive circuit 22, driving chip is used
In in each frame, the first scan drive circuit 21 of control while being scanned, the second scan drive circuit 22 of control into
Row scanning.
Specifically, for example, driving chip includes the first initial signal end STV1 and the second initial signal end STV2, first sweeps
The input terminal IN for retouching the first shift register of the first order 210 in driving circuit 21 is connected to the first initial signal end STV1, and second
The input terminal IN of the second shift register of the first order 220 is connected to the second initial signal end STV2 in scan drive circuit 22.
In per frame time, the first clock cable S1 and second clock signal wire S2 export different clock signals respectively.In every frame
Preparation stage t00, reseting signal line S3, which are provided, enables level, controls each first shift register 210 and each second shift LD
Device 220 resets, and being provided simultaneously in the starting stage t0 of every frame, the first initial signal end STV1 and the second initial signal end STV2 makes
Can level, the first shift register of the first order 210 shifted in response to the enabled level of the first initial signal end STV1, the
The output of one stage t1 enables level, realizes the charging of the first row sub-pixel 10, and the second shift register of the first order 220 is in response to the
The enabled level of two initial signal end STV2 is shifted, and t1 outputs in the first stage enable level to the first output control line
TC1, to control corresponding first pressure sensitive sensor 3 work, the second level the first shift register 210 is in response to first
The enabled level of grade the first shift register 210 output enables level in second stage t2 outputs, realizes the second row sub-pixel 10
Charging, the second shift register of the second level 220 is defeated in response to the cascade signal end NEX of the second shift register of the first order 220
The signal gone out is shifted, and level is enabled to the second output control line TC2 in second stage t2 output, to control corresponding the
Two pressure sensitive sensors 3 work, and so on, that is, it realizes in each frame, the first scan drive circuit 21 of control exists
While being scanned, the second scan drive circuit 22 of control is scanned.This type of drive, due to the charging of sub-pixel
Journey and pressure detecting process are carried out at the same time, therefore can improve the refresh rate of display.
It should be noted that structure shown in Fig. 3 is when clock signal corresponding with Fig. 6 coordinates, the of driving chip
One initial signal end STV1 and the second initial signal end STV2 can be the same port, because the signal of the two output is identical.
In addition, the first scan drive circuit 21 of control, while being scanned, the second scan drive circuit 22 of control is scanned
There are many specific implementation, and sequential shown in fig. 6 is merely illustrative, for example, it is also possible to charge in the second row sub-pixel 10
Controlling the second scan drive circuit 22 simultaneously drives each pressure sensitive sensor 3 to carry out pressure detecting.
Optionally, referring to Fig. 3 and Fig. 5, display panel further includes：The first scan drive circuit 21 and second is electrically connected to sweep
The driving chip (not shown) of driving circuit 22 is retouched, driving chip is used for initial by control second in response to standby command
The frequency of signal end STV2 is scanned to control the second scan drive circuit 22 with first frequency, and driving chip is additionally operable to when pressure
When power inductive signal reaches preset condition, the second turntable driving electricity is controlled by controlling the frequency of the second initial signal end STV2
Road 22 is scanned with second frequency, and first frequency is less than second frequency.
Specifically, when display panel is in the terminals such as mobile phone, there is longer stand-by time, in stand-by time, no
It needs to carry out accurately pressure detecting, therefore the second scan drive circuit 22 can be controlled in stand-by time with lower frequency
Be scanned, for example, each second scanning twice, when judge pressure sensitive sensor 3 output pressure sensitive signal reach default item
When part, illustrate that user is carrying out pressing operation, at this point, the scan frequency of the second scan drive circuit 22 is improved again, to realize more
Add accurately pressure detecting.In this way, power consumption can be saved, and the fever of pressure sensitive sensor 3 is reduced, improves pressure sensitive
The service life of sensor 3.
Optionally, referring to Fig. 3 and Fig. 5, the first scan drive circuit 21 includes multiple cascade first shift registers
210, the output end OUT of each first shift register 210 are electrically connected with every one-to-one correspondence of scan line 11, and the first order first is moved
The input terminal IN of bit register 210 is electrically connected to driving chip (not shown)；Second scan drive circuit 22 includes multiple
Cascade second shift register 220, the control of the output end OUT and each switch unit 5 of each second shift register 220
End corresponds electrical connection, and the input terminal IN of the second shift register of the first order 220 is electrically connected to driving chip；Driving chip is logical
The frequency for crossing the first initial signal end STV1 of the input terminal IN of the first shift register of the control first order 210 is swept to control first
It retouches the scan period of driving circuit 21, driving chip is by controlling the of the input terminal IN of the second shift register of the first order 220
The frequency of one initial signal end STV1 controls the scan period of the second scan drive circuit 22.By controlling the first turntable driving
First frequency and second frequency can be realized in the scan period of circuit 21 and the scan period of the second scan drive circuit 22
Control.
Optionally, as shown in fig. 7, Fig. 7 is a kind of structural schematic diagram of pressure sensitive sensor in the embodiment of the present invention, pressure
Power inductive pick-up be Wheatstone bridge formula pressure sensor, Wheatstone bridge formula pressure sensor include first input end IN1,
Second input terminal IN2, the first output end OUT1 and second output terminal OUT2, second output terminal OUT2 and first input end IN1 it
Between be in series with the first voltage dependent resistor R1, the second voltage dependent resistor R2 is in series between first input end IN1 and the first output end OUT1,
Third voltage dependent resistor R3, the second input terminal IN2 and the second output are in series between first output end OUT1 and the second input terminal IN2
It is in series with the 4th voltage dependent resistor R4 between the OUT3 of end.
Specifically, the first voltage dependent resistor R1, the second voltage dependent resistor R2, third voltage dependent resistor R3 and the 4th voltage dependent resistor R4
Shape can there are many, illustratively, as shown in figure 8, the pressure sensitive sensor prolongs including the first extending direction h1 and second
Stretch that direction h2, the first extending direction h1 and the second extending direction h2 are arranged in a crossed manner, and the first voltage dependent resistor R1 is by first end a to second
Component of the development length of a ' on the first extending direction h1 is held to be more than the component on the second extending direction h2, the second buckling electricity
R2 is hindered by component of the development length of first end b to second end b ' on the second extending direction h2 to be more than in the first extending direction h1
On component, components of the third voltage dependent resistor R3 by the development length of first end c to second end c ' on the first extending direction h1
More than the component on the second extending direction h2, the 4th voltage dependent resistor R4 is by the development length of first end d to second end d '
Component on two extending direction h2 is more than the component on the first extending direction h1.Setting can not only make the first buckling in this way
Resistance R1 and third voltage dependent resistor R3 incudes the strain of the first extending direction h1, the second voltage dependent resistor R2 and the 4th voltage dependent resistor R4
The strain for incuding the second extending direction h2 can also make the area of entire pressure sensitive sensor smaller, be affected by temperature smaller.
When display panel is not by the compression perpendicular to plane where display panel, the first voltage dependent resistor R1 and the second buckling electricity
When hindering resistance value the ratio between of the ratio between the resistance value of R2 equal to the 4th voltage dependent resistor R4 and third voltage dependent resistor R3, electric bridge reaches equilibrium-like
State, the voltage value at the first output end OUT1 are equal to the voltage value at second output terminal OUT2；When display panel by perpendicular to
Where display panel when the compression of plane, aforementioned four resistance can deform upon, and the resistance value of each resistance is caused to change,
Electric bridge is set to break equilibrium state, i.e., the ratio between resistance value of the first voltage dependent resistor R1 and the second voltage dependent resistor R2 is not equal to the 4th buckling electricity
The ratio between the resistance value of R4 and third voltage dependent resistor R3 are hindered, the voltage value at the first output end OUT1 is not equal at second output terminal OUT2
Voltage value, the difference of the voltage value at the first output end OUT1 and the voltage value at second output terminal OUT2 and display panel by
Pressure value there are correspondences, during pressure detecting, pass through obtain the first output end OUT1 at voltage value and second
Voltage value at output end OUT2 can be obtained corresponding pressure value.
Optionally, as shown in figure 8, Fig. 8 is the structural schematic diagram of another pressure sensitive sensor in the embodiment of the present invention,
Pressure sensitive sensor 3 is silicon piezoresistance type pressure sensor.
Specifically, silicon piezoresistance type pressure sensor can be quadrilateral structure, four edges respectively with first input end IN1,
Second input terminal IN2, the first output end OUT1 are connected with second output terminal OUT2, first input end IN1 and the second input terminal
IN2 is connected to two opposite sides, the first output end OUT1 and second output terminal OUT2 be connected to it is opposite in addition
Two sides.First input end IN1 and the second input terminal IN2 applies bias voltage to silicon piezoresistance type pressure sensor, works as display surface
Plate is by when the compression of plane, the resistance value of silicon piezoresistance type pressure sensor changes where the display panel, and first
Corresponding variation occurs for the output signal of output end OUT1 and second output terminal OUT2, defeated by the first output end OUT1 and second
The pressure that the variation detection silicon piezoresistance type pressure sensor of voltage is subject on outlet OUT2.
As described in Figure 9, Fig. 9 is a kind of structural schematic diagram of display device in the embodiment of the present invention, and the embodiment of the present invention is also
A kind of display device, including above-mentioned display panel 100 are provided.
Wherein, the concrete structure of display panel 100 and principle are same as the previously described embodiments, and details are not described herein.Display dress
It can be any with aobvious such as touch display screen, mobile phone, tablet computer, laptop, electric paper book or television set to set
Show the electronic equipment of function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (14)
1. a kind of display panel, which is characterized in that including：
In multiple sub-pixels of array distribution；
Scan line corresponding with sub-pixel described in every row；
It is electrically connected to the first scan drive circuit of every scan line, first scan drive circuit is used for as a plurality of institute
It states scan line and scanning signal is provided；
Multiple pressure sensitive sensors；
Biasing voltage signal line；
Switch unit corresponding with each pressure sensitive sensor, the first end of the switch unit are electrically connected to corresponding
The second end of the pressure sensitive sensor, the switch unit is electrically connected to the biasing voltage signal line, and the switch is single
The control terminal of member is used to control the break-make of the first end and the second end；
It is electrically connected to the second scan drive circuit of the control terminal of each switch unit, second scan drive circuit is used
Scanning signal is provided in the control terminal for multiple switch units；
Clock cable, the clock cable are connected to first scan drive circuit and second turntable driving electricity
Road.
2. display panel according to claim 1, which is characterized in that
First scan drive circuit includes multiple cascade first shift registers, each first shift register
Output end is electrically connected with scan line one-to-one correspondence described in every；
Second scan drive circuit includes multiple cascade second shift registers, each second shift register
Output end is electrically connected with the control terminal one-to-one correspondence of each switch unit.
3. display panel according to claim 2, which is characterized in that
Each first shift register and each second shift register include reset signal end；
The display panel further includes reseting signal line, and the reseting signal line is electrically connected to each first shift register
With the reset signal end of each second shift register.
4. display panel according to claim 1, which is characterized in that
Each pressure sensitive sensor includes the first output end and second output terminal；
The display panel further includes the first output signal line and the second output signal line, the first output signal line electrical connection
In the first output end of each pressure sensitive sensor, second output signal line is electrically connected to each feeling of stress
The second output terminal of inductive sensing device.
5. display panel according to claim 1, which is characterized in that
Each pressure sensitive sensor includes first input end and the second input terminal；
The biasing voltage signal line includes the first biasing voltage signal line and the second biasing voltage signal line；
Each switch unit includes first film transistor, and the first end of the first film transistor is electrically connected to correspondence
The pressure sensitive sensor first input end, the second end of the first film transistor is electrically connected to described first partially
Voltage signal line is set, the control terminal of the first film transistor is electrically connected to second scan drive circuit；
The second biasing voltage signal line is electrically connected to the second input terminal of each pressure sensitive sensor.
6. display panel according to claim 5, which is characterized in that
The second biasing voltage signal line is electrically connected to ground terminal.
7. display panel according to claim 6, which is characterized in that
Each switch unit further includes the second thin film transistor (TFT), and the first end of second thin film transistor (TFT) is electrically connected to pair
The second end of the first input end for the pressure sensitive sensor answered, second thin film transistor (TFT) is electrically connected to ground terminal,
The control terminal of second thin film transistor (TFT) is electrically connected to the control terminal of the corresponding first film transistor；
The first film transistor and the transistor that second thin film transistor (TFT) is opposite Control Cooling.
8. display panel according to claim 1, which is characterized in that further include：
It is electrically connected to the driving chip of first scan drive circuit and second scan drive circuit, the driving chip
For in each frame, controlling first scan drive circuit after completing to scan, the second turntable driving electricity is controlled
Road is scanned.
9. display panel according to claim 1, which is characterized in that further include：
It is electrically connected to the driving chip of first scan drive circuit and second scan drive circuit, the driving chip
For in each frame, controlling first scan drive circuit while being scanned, second turntable driving is controlled
Circuit is scanned.
10. display panel according to claim 1, which is characterized in that further include：
It is electrically connected to the driving chip of first scan drive circuit and second scan drive circuit, the driving chip
It is scanned with first frequency for controlling second scan drive circuit in response to standby command, the driving chip is also used
It is scanned with second frequency in when pressure sensitive signal reaches preset condition, controlling second scan drive circuit, institute
It states first frequency and is less than the second frequency.
11. the display panel according to any one of claim 8 to 10, which is characterized in that
First scan drive circuit includes multiple cascade first shift registers, each first shift register
Output end is electrically connected with scan line one-to-one correspondence described in every, and the input terminal of the first shift register described in the first order is electrically connected to
The driving chip；
Second scan drive circuit includes multiple cascade second shift registers, each second shift register
Output end is electrically connected with the control terminal one-to-one correspondence of each switch unit, the input of the second shift register described in the first order
End is electrically connected to the driving chip；
The driving chip controls first scan drive circuit by the input terminal of the first shift register described in the first order
The preliminary sweep moment, the driving chip swept by the input terminal of the second shift register described in first order control described second
Retouch the preliminary sweep moment of driving circuit.
12. display panel according to claim 1, which is characterized in that
The pressure sensitive sensor is Wheatstone bridge formula pressure sensor, and the Wheatstone bridge formula pressure sensor includes
First input end, the second input terminal, the first output end and second output terminal, the second output terminal and the first input end it
Between be in series with the first voltage dependent resistor, the second voltage dependent resistor, institute are in series between the first input end and first output end
It states and is in series with third voltage dependent resistor between the first output end and second input terminal, second input terminal and described second defeated
The 4th voltage dependent resistor is in series between outlet.
13. display panel according to claim 1, which is characterized in that
The pressure sensitive sensor is silicon piezoresistance type pressure sensor.
14. a kind of display device, which is characterized in that include the display panel as described in any one of claims 1 to 10.
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