CN108172164A - A kind of display panel and its driving method, display device - Google Patents
A kind of display panel and its driving method, display device Download PDFInfo
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- CN108172164A CN108172164A CN201810004675.1A CN201810004675A CN108172164A CN 108172164 A CN108172164 A CN 108172164A CN 201810004675 A CN201810004675 A CN 201810004675A CN 108172164 A CN108172164 A CN 108172164A
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- Prior art keywords
- shifting deposit
- display panel
- pressure sensitive
- signal
- unit
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Classifications
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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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
Abstract
An embodiment of the present invention provides a kind of display panel and its driving method, display devices, are related to display technology field, to reduce border width, preferably realize narrow frame design.The non-display area of display panel is equipped with multiple cascade shifting deposit units and multiple pressure sensitive units；The carry input of first shifting deposit unit is connected with frame start signal line, in two neighboring shifting deposit unit, the Shift outputs of previous shifting deposit unit are connected with the carry input of the latter shifting deposit unit, the clock signal input terminal of shifting deposit unit is connected with clock cable, the scanning signal output terminal of shifting deposit unit is connected with grid line one-to-one correspondence, and the reset terminal of shifting deposit unit is connected with reseting signal line；The first input end of pressure sensitive unit is connected with reseting signal line, and the second input terminal of pressure sensitive unit is connected with power signal line.Above-mentioned display panel is used to implement picture and shows.
Description
【Technical field】
The present invention relates to display technology field more particularly to a kind of display panel and its driving method, display devices.
【Background technology】
At present, the pressure sensitive function for realization display panel, is usually provided in the non-display area of display panel and is used for
The pressure sensor of induction pressure.As shown in Figure 1, Fig. 1 is the structure diagram of display panel of the prior art, the display surface
Plate includes display area 1' and non-display area 2', and multiple pressure sensor 3' are provided in non-display area 2'.Each pressure passes
The ground terminal of sensor 3' is connected by a piece-root grafting ground wire 4' with driving chip 6', and the power end of each pressure sensor 3' passes through
A piece power cord 5' is connected with driving chip 6'.Driving chip 6' is used to provide ground signalling to pressure sensor 3' and power supply is believed
Number.
But since the width of ground wire 4' and power cord 5' is larger, and vertically prolong in non-display area 2'
Arrangement is stretched, thus larger space can be occupied, causes border width larger, is unfavorable for realizing the narrow frame design of display device.
【Invention content】
In view of this, an embodiment of the present invention provides a kind of display panel and its driving method, display device, to reduce
Border width preferably realizes narrow frame design.
On the one hand, an embodiment of the present invention provides a kind of display panels, and the non-display area of the display panel is equipped with multiple
Cascade shifting deposit unit and multiple pressure sensitive units；
Each shifting deposit unit is defeated including carry input, clock signal input terminal, scanning signal output terminal, displacement
Outlet and reset terminal；Wherein, the carry input of first shifting deposit unit is connected with frame start signal line, two neighboring
In the shifting deposit unit, shifting deposit unit described in the Shift outputs and the latter of the previous shifting deposit unit
Carry input be connected, the clock signal input terminal of multiple shifting deposit units is connected respectively with clock cable, more
The scanning signal output terminal of a shifting deposit unit is connected with a plurality of grid line one-to-one correspondence, multiple shifting deposit units
Reset terminal be connected respectively with reseting signal line；
Each pressure sensitive unit includes first input end and the second input terminal, and the of multiple pressure sensitive units
One input terminal is connected respectively with the reseting signal line, the second input terminal and the power signal line phase of each pressure sensitive unit
Even.
On the other hand, an embodiment of the present invention provides a kind of driving method of display panel, the drivings of the display panel
Method is applied in above-mentioned display panel, and the driving method of the display panel includes：
One drive cycle of the display panel includes grid line driving period and pressure sensitive period；
The period is driven in the grid line, when the frame start signal and clock cable that frame start signal line provides provide
Under the action of clock signal, in the two neighboring shifting deposit unit, the previous shifting deposit unit is sequentially to the latter
The shifting deposit unit exports shift control signal, and multiple shifting deposit units is made to carry out timesharing drive to a plurality of grid line
It is dynamic；
In the work of reset signal that the pressure sensitive period, multiple shifting deposit units provide in reseting signal line
With lower reset, reset signal and power signal line that multiple pressure sensitive units are provided in the reseting signal line carry
Under the action of the power supply signal of confession, sensing applies pressure on a display panel.
In another aspect, an embodiment of the present invention provides a kind of display device, the display device includes above-mentioned display panel.
A technical solution in above-mentioned technical proposal has the advantages that：
The technical solution provided using the present embodiment, by the way that the first input end of each pressure sensitive unit is believed with resetting
Number line is connected, in this way, the reset signal that reseting signal line provides, can not only control shifting deposit unit to be resetted, moreover it is possible to
Enough as the input signal of pressure sensitive unit, the work of driving pressure sensing unit.Compared to the prior art, the present embodiment is carried
The display panel of confession can be driven pressure sensitive unit by reseting signal line original in display panel, because without
Additional setting is grounded again in non-display area, so as to save ground wire the space occupied in non-display area, and then reduces side
Width of frame preferably realizes the narrow frame design of display device.
【Description of the drawings】
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this field
For those of ordinary skill, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of display panel in the prior art；
Fig. 2 is the shifting deposit unit for the display panel that the embodiment of the present invention is provided and a kind of knot of pressure sensitive unit
Structure schematic diagram；
Fig. 3 is that the connection of the pressure sensitive unit and power supply signal terminal for the display panel that the embodiment of the present invention is provided is shown
It is intended to；
Fig. 4 is a kind of structure diagram for the shifting deposit unit that the embodiment of the present invention is provided；
Fig. 5 is the clock signal figure corresponding to shifting deposit unit shown in Fig. 4；
Fig. 6 is a kind of structure diagram for the pressure sensitive unit that the embodiment of the present invention is provided；
Fig. 7 is another structure diagram for the pressure sensitive unit that the embodiment of the present invention is provided；
Fig. 8 is the flow chart of the driving method for the display panel that the embodiment of the present invention is provided；
Fig. 9 is a kind of structure diagram for the display device that the embodiment of the present invention is provided.
【Specific embodiment】
For a better understanding of the technical solution of the present invention, the embodiment of the present invention is retouched in detail below in conjunction with the accompanying drawings
It states.
It will be appreciated that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting
The present invention.In the embodiment of the present invention and " one kind " 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.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relationships, for example, A and/or B, can represent：Individualism A, exists simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
It will be appreciated that though may input terminal, but these be described using term first, second in embodiments of the present invention
Input terminal should not necessarily be limited by these terms.These terms are only used for input terminal being distinguished from each other out.It is for example, of the invention real not departing from
In the case of applying a range, first input end can also be referred to as the second input terminal, and similarly, the second input terminal can also be claimed
For first input end.
The embodiment provides a kind of display panel, the non-display area of the display panel is equipped with multiple cascade shiftings
Position deposit unit and multiple pressure sensitive units, as shown in Fig. 2, the shifting of display panel that Fig. 2, which is the embodiment of the present invention, to be provided
A kind of structure diagram of position deposit unit and pressure sensitive unit, each shifting deposit unit 1 include carry input IN, clock
Signal input part CK, scanning signal output terminal OUT, Shift outputs NEXT and reset terminal RESET.
Wherein, the clock signal input terminal CK of multiple shifting deposit units 1 is connected respectively with clock cable CKH, multiple
The scanning signal output terminal OUT of shifting deposit unit 1 is connected with a plurality of grid line Gate one-to-one correspondence, multiple shifting deposit units 1
Reset terminal RESET be connected respectively with reseting signal line RST.The carry input IN of first shifting deposit unit 1 is opened with frame
Beginning, signal wire STV was connected, in two neighboring shifting deposit unit, the Shift outputs NEXT of previous shifting deposit unit with
The carry input IN of the latter shifting deposit unit is connected.
Each pressure sensitive unit 2 includes first input end IN1 and the second input terminal IN2, and the of multiple pressure sensitive units 2
One input terminal IN1 is connected respectively with reseting signal line RST, the second input terminal IN2 and power signal line of each pressure sensitive unit 2
POWER is connected.
It should be noted that frame start signal line STV, clock cable CKH and reseting signal line RST are display panel
In for driving shifting deposit unit 1 work original signal wire, also, frame start signal line STV, clock cable CKH and
Reseting signal line RST is connected with driving chip (not shown), frame start signal line STV, clock cable CKH and reset
The signal transmitted on signal wire RST is provided by driving chip.
In the course of work of multiple cascade shifting deposit units 1, clock cable CKH is to multiple shifting deposit units
1 provides clock signal, and frame start signal line STV provides frame to the carry input IN of first shifting deposit unit and starts letter
Number, under the action of frame start signal and clock signal, multiple 1 timesharing of shifting deposit unit export scanning letter to corresponding grid line
Number, timesharing driving is carried out to a plurality of grid line.It is multiple after multiple shifting deposit units 1 all export scanning signal to whole grid lines
Position signal wire RST provides reset signal to multiple shifting deposit units 1, and multiple shifting deposit units 1 are in the effect of reset signal
Lower reset stops output scanning signal.At the same time, the first input end IN1 based on multiple pressure sensitive units 2 believes with resetting
The connection relation of number line RST, the reset signal that reseting signal line RST is provided also are transmitted in pressure sensitive unit 2, are believed resetting
Number and power signal line POWER provide power supply signal under the action of, multiple pressure sensitive units 2 work, aobvious to being applied to
Show that the pressure on panel is sensed.
Therefore the display panel provided using the present embodiment, by the way that the first of each pressure sensitive unit 2 is inputted
End IN1 is connected with reseting signal line RST, in this way, the reset signal that reseting signal line RST is provided, can not only control displacement to post
Memory cell 1 is resetted, additionally it is possible to which, as the input signal of pressure sensitive unit 2, driving pressure sensing unit 2 works.It compares
In the prior art, the display panel that the present embodiment is provided can be by reseting signal line RST original in display panel to pressure
Sensing unit 2 is driven, because setting ground wire without additional again in non-display area, so as to save ground wire non-aobvious
Show the space occupied in area, and then reduce border width, preferably realize the narrow frame design of display device.
It is understood that it would generally be equipped with to power to shifting deposit unit 1 in the non-display area of display panel
Power supply signal terminal.The power supply signal terminal is connected with driving chip (not shown), and driving chip is to power supply signal terminal
Stable and lasting power supply signal, power supply signal terminal is provided again to be transmitted to power supply signal in shifting deposit unit 1 (in figure not
Show), to ensure that shifting deposit unit 1 works normally.
Further, as shown in figure 3, the pressure sensitive unit for the display panel that Fig. 3, which is the embodiment of the present invention, to be provided with
The connection diagram of power supply signal terminal, the power signal line POWER being connected with the second input terminal IN2 of pressure sensitive unit 2
It can be connected with power supply signal terminal 3.When power signal line POWER is connected with power supply signal terminal 3, power signal line POWER
Power supply signal can be obtained at power supply signal terminal 3, and then power supply signal is transmitted in pressure sensitive unit 2.Also, it adopts
With this kind of connection mode, it can save and erect the straight arranged power supply being connected with driving chip in non-display area in the prior art
Line, so as to further reduce border width.
Further, since the reset signal that reseting signal line RST is provided, is applied not only to driving shifting deposit unit 1 and carries out
It resets, is additionally operable to driving pressure sensing unit 2 and carries out pressure sensitive, in order to avoid reset signal is uploaded in reseting signal line RST
It causes to decay when defeated, can be 15~30 μm by the width design of reseting signal line RST.
It is understood that a kind of as shown in figure 4, knot for the shifting deposit unit that Fig. 4, which is the embodiment of the present invention, to be provided
Structure schematic diagram, for drive multiple shifting deposit units 1 can timesharing export scanning signal, the clock letter of each shifting deposit unit 1
Number input terminal CK includes the first clock signal input terminal CK1 and second clock signal input part CK2.Wherein, odd-numbered line is corresponding
First clock signal input terminal CK1 of shifting deposit unit and the second clock signal of the corresponding shifting deposit unit of even number line are defeated
Enter to hold CK2 to be connected with the first clock cable CKH1, the first clock signal input of the corresponding shifting deposit unit of even number line
Hold the second clock signal input part CK2 of CK1 and the corresponding shifting deposit unit of odd-numbered line with second clock signal wire CKH2
It is connected.
By taking display panel includes N number of shifting deposit unit 1 as an example, with reference to Fig. 5, Fig. 5 is shift LD shown in Fig. 4
Clock signal figure corresponding to unit, is specifically described the driving method of display panel：
One drive cycle of display panel includes grid line driving period and pressure sensitive period, wherein, when grid line drives
Section is included in the 1st sub-period t1~in N sub-periods tN, the pressure sensitive period include N+1 sub-periods tN+1。
In the 1st sub-period t1, carried in the frame start signal line STV frame start signals provided and the first clock cable CKH1
The first clock signal supplied (for convenience of understanding, represents frame start signal with STV in Fig. 4, by the first clock signal CKH1 tables
Show) under the action of, the 1st shifting deposit unit exports scanning signal to grid line Gate1, meanwhile, the 1st shifting deposit unit
Shift outputs NEXT exports shift control signal to the carry input IN of the 2nd shifting deposit unit, at this point, pressure sensing
Unit 2 does not work.
In the 2nd sub-period t2, in the shift control signal and second clock signal wire of the 1st shifting deposit unit output
Under the action of the second clock signal (for convenience of understanding, representing second clock signal with CKH2 in Fig. 4) that CKH2 is provided, the 2nd
A shifting deposit unit exports scanning signal to grid line Gate2, meanwhile, the Shift outputs NEXT of the 2nd shifting deposit unit
Shift control signal is exported to the carry input IN of the 3rd shifting deposit unit, at this point, pressure sensitive unit 2 does not work.
And so on.
In N-1 sub-periods tN-1, in the shift control signal and the first clock letter of the N-2 shifting deposit unit output
Under the action of number, the N-1 shifting deposit unit exports scanning signal to grid line Gate N-1, meanwhile, the N-1 shift LD
The Shift outputs NEXT of unit exports shift control signal to the carry input IN of n-th shifting deposit unit, at this point, pressure
Power sensing unit 2 does not work.
In N sub-periods tN, in the shift control signal of the N-1 shifting deposit unit output and second clock signal
Under effect, n-th shifting deposit unit exports scanning signal to grid line Gate N, at this point, pressure sensitive unit 2 does not work.
In N+1 sub-periods tN+1, reseting signal line RST exports multiple to N number of shifting deposit unit 1 and pressure sensitive unit 2
Position signal, N number of shifting deposit unit 1 are resetted under the action of reset signal, stop exporting scanning signal, pressure to grid line
Sensing unit 2 is started to work under the action of reset signal, and the pressure applied on a display panel is sensed.
It should be noted that in the 1st sub-period t1~the N+1 sub-periods tN+1, power supply signal terminal 3 posts always to displacement
Memory cell 1 and pressure sensitive unit 2 transmit stable and lasting power supply signal, still, only in N+1 sub-period pressure sensing lists
When member 2 receives reset signal, pressure sensitive unit 2 is just started to work.
In addition it is also necessary to explanation, in N+1 sub-periods tN+1, reseting signal line, which can provide low level reset, to be believed
Number, the reset signal of high level can be also provided.Regardless of reset signal is high level or low level, power supply signal end only need to be enabled
There are potential differences between power supply signal and reset signal that son 3 is provided, so that it may realize that driving pressure sensing unit 2 works.
Based on above-mentioned statement it is found that shifting deposit unit 1 drives period timesharing to provide scanning signal, pressure to grid line in grid line
Power sensing unit 2 senses the pressure applied on a display panel in the pressure sensing period, due to 1 He of shifting deposit unit
Pressure sensitive unit 2 is operated in the different periods respectively, therefore, it is possible to reduce shifting deposit unit 1 and pressure sensitive unit 2 it
Between signal interference.
It should be noted that the scanning signal output terminal OUT and Shift outputs NEXT in each shifting deposit unit 1 also may be used
An output terminal is multiplexed with, in that case, the signal exported in shifting deposit unit 1 by the output terminal can both be made
For the scanning signal of grid line, the shift control signal of next shifting deposit unit can also be used as.
Optionally, pressure sensitive unit 2 can be Wheatstone bridge formula pressure sensor.As shown in fig. 6, Fig. 6 is the present invention
A kind of structure diagram for the pressure sensitive unit that embodiment is provided, when pressure sensitive unit 2 is Wheatstone bridge formula pressure
During sensor, it is defeated that pressure sensitive unit 2 includes first input end IN1, the second input terminal IN2, the first output terminal OUT1 and second
Outlet OUT2.The first voltage dependent resistor R1, the first output terminal OUT1 is in series between first input end IN1 and the first output terminal OUT1
And second be in series with the second voltage dependent resistor R2 between input terminal IN2, connects between the second input terminal IN2 and second output terminal OUT2
There is third voltage dependent resistor R3, the 4th voltage dependent resistor R4 is in series between second output terminal OUT2 and first input end IN1.
When display panel does not deform upon, electric bridge is equilibrium state, i.e. the first voltage dependent resistor R1 and the second buckling electricity
It hinders the ratio between resistance value of R2 and is equal to the ratio between resistance value of the 4th voltage dependent resistor R4 and third voltage dependent resistor R3, the electricity of the first output terminal OUT1
Pressure value is equal to the voltage value of second output terminal OUT2.
When applying certain pressure to display panel, when deforming upon display panel, the first voltage dependent resistor R1, the second pressure
Becoming resistance R2, third voltage dependent resistor R3 and the 4th voltage dependent resistor R4 can deform upon, and the resistance value of each voltage dependent resistor is caused to occur
The equilibrium state of electric bridge is broken in variation.At this point, the ratio between resistance value of the first voltage dependent resistor R1 and the second voltage dependent resistor R2 is not equal to the
The ratio between resistance value of four voltage dependent resistor R4 and third voltage dependent resistor R3, the voltage value at the first output terminal OUT1 is not equal to the second output
Hold the voltage value at OUT2.Wherein, the difference of the voltage value of the voltage value and second output terminal OUT2 of the first output terminal OUT1 is with showing
Showing pressure value that panel is subject to, there are correspondence, the electricity of voltage value, second output terminal OUT2 based on the first output terminal OUT1
Pressure value and correspondence, you can obtain corresponding pressure value.
Optionally, pressure sensitive unit 2 can be silicon piezoresistance type pressure sensor.As shown in fig. 7, Fig. 7 is implementation of the present invention
Another structure diagram of pressure sensitive unit that example is provided, when pressure sensitive unit 2 is silicon piezoresistance type pressure sensor
When, pressure sensitive unit 2 is the quadrilateral structure of full wafer, and pressure sensitive unit 2 includes first input end IN1', the second input terminal
IN2', the first output terminal OUT1', second output terminal OUT2' and the first edge being sequentially connected, second edge, third edge
With the 4th edge, first input end IN1 is connected with first edge, and the first output terminal OUT1' is connected with second edge, the second input
End IN2 is connected with third edge, and second output terminal OUT2' is connected with the 4th edge.Wherein, first input end IN1' and second is defeated
Enter to hold IN2' to apply bias voltage to silicon piezoresistance type pressure sensor.
When applying certain pressure to display panel, when making display panel generation deformation, silicon piezoresistance type pressure sensor
Resistance value changes, and corresponding variation occurs for the signal that the first output terminal OUT1' and second output terminal OUT2' are exported, and then
It is subject to by the variation detection silicon piezoresistance type pressure sensor of voltage on the first output terminal OUT1' and second output terminal OUT2'
Pressure.
The present embodiment additionally provides a kind of driving method of display panel, and the driving method of display panel is applied to above-mentioned show
Show in panel.
Wherein, a drive cycle of display panel includes grid line driving period and pressure sensitive period.As shown in figure 8,
Fig. 8 is the flow chart of the driving method of display panel provided in an embodiment of the present invention, and the driving method of display panel includes：
Step S1：The period is driven in grid line, is provided in the frame start signal and clock cable of the offer of frame start signal line
Clock signal under the action of, in two neighboring shifting deposit unit, previous shifting deposit unit sequentially to the latter shift
Deposit unit exports shift control signal, and multiple shifting deposit units is made to carry out timesharing driving to a plurality of grid line.
Step S2：In the work for the reset signal that pressure sensitive period, multiple shifting deposit units provide in reseting signal line
With lower reset, power supply that reset signal and power signal line that multiple pressure sensitive units are provided in reseting signal line provide
Under the action of signal, sensing applies pressure on a display panel.
The reset signal provided using the driving method for the display panel that the present embodiment is provided, reseting signal line, not only
Shifting deposit unit can be controlled to be resetted, additionally it is possible to which, as the input signal of pressure sensitive unit, driving pressure sensing is single
Member work.That is, the signal of driving pressure sensing unit work, is carried by reseting signal line original in display panel
It supplies.Compared to the prior art, ground wire is set without additional again in non-display area, so as to save ground wire non-display
The space occupied in area, and then reduce border width, preferably realize the narrow frame design of display device.
When the non-display area of display panel is equipped with the power supply signal terminal for powering to shifting deposit unit, power supply signal
When line is connected with power supply signal terminal, period and pressure sensitive period are driven in grid line, power supply signal terminal is to shift LD list
First and multiple pressure sensitive units provide power supply signal.
Using this kind of type of drive, power signal line obtains power supply signal at power supply signal terminal, can not only ensure
Stable and lasting power supply signal is transmitted to pressure sensitive unit, additionally it is possible to save what is set in non-display area in the prior art
For connecting the power cord of pressure sensitive unit and driving chip, so as to further reduce border width.
The specific implementation of the driving method for the display panel that the present embodiment is provided in the above-described embodiments into
It has gone and has illustrated, details are not described herein again.
Illustratively, the period is driven in grid line, the frame start signal that frame start signal line provides is high level signal.This
Outside, the driving method of display panel further includes：In the pressure sensitive period, frame start signal line provides low level signal, makes more
The electrostatic of a pressure sensitive unit and multiple shifting deposit units is discharged by frame start signal line.
Concrete structure based on display panel, pressure sensitive unit are connected by reseting signal line with shifting deposit unit.
And using the above method, in the pressure sensitive period, by the way that frame start signal line is enabled to provide low level signal, pressure sensitive unit
In electrostatic it is outer except through reseting signal line release, additionally it is possible to flow into frame start signal line via displacement control unit, pass through
Frame start signal line discharges, thus increases the release way of electrostatic in pressure sensitive unit, improves pressure sensitive unit
Anti-static-discharge capability.
It should be noted that in the pressure sensitive period, shifting deposit unit is all in reset state, without being exported to grid line
Therefore scanning signal, enables frame start signal line provide low level signal in the period and is not interfering with shifting deposit unit just
Often work.
Further, the driving method of display panel further includes：In the pressure sensitive period, clock cable provides low level
Signal, the electrostatic of multiple pressure sensitive units and multiple shifting deposit units is made to pass through clock cable and is discharged.
Concrete structure based on display panel, pressure sensitive unit are connected by reseting signal line with shifting deposit unit.
And using the above method, in the pressure sensitive period, low level signal is provided by enabling clock cable, in pressure sensitive unit
Electrostatic it is outer except through reseting signal line release, additionally it is possible to flow into clock cable via displacement control unit, pass through clock
Signal wire discharges, thus increases the release way of electrostatic in pressure sensitive unit, improves the antistatic of pressure sensitive unit
Discharge capability.
It should be noted that in the pressure sensitive period, shifting deposit unit is all in reset state, without being exported to grid line
Therefore scanning signal, enables clock cable provide low level signal in the period and does not interfere with the normal of shifting deposit unit
Work.
It should be noted that in the pressure sensitive period, frame start signal line can only be controlled to provide low level signal, also may be used
Only control clock cable provides low level signal, certainly, also frame start signal line and clock cable can control all to provide
Low level signal, the present embodiment are not specifically limited this.
A kind of display device is present embodiments provided, as shown in figure 9, Fig. 9 is display device provided in an embodiment of the present invention
A kind of structure diagram, the display device include above-mentioned display panel 100.Wherein, the concrete structure of display panel 100 and
Driving method is described in detail in the above-described embodiments, and details are not described herein again.Certainly, display device shown in Fig. 9
Only schematically illustrate, which can be such as mobile phone, tablet computer, laptop, electric paper book or television set
Etc. any electronic equipment with display function.
Since the display device that the present embodiment is provided includes above-mentioned display panel, it is provided using the present embodiment
Display device, without additionally setting the ground wire that is connected with pressure sensitive unit in the non-display area of display panel, thus
Border width can be reduced, preferably realizes narrow frame design.
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
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of protection of the invention.
Claims (10)
1. a kind of display panel, which is characterized in that the non-display area of the display panel is equipped with multiple cascade shift LD lists
First and multiple pressure sensitive units；
Each shifting deposit unit includes carry input, clock signal input terminal, scanning signal output terminal, Shift outputs
And reset terminal；Wherein, the carry input of first shifting deposit unit is connected with frame start signal line, two neighboring described
In shifting deposit unit, the shifting of shifting deposit unit described in the Shift outputs and the latter of the previous shifting deposit unit
Position input terminal is connected, and the clock signal input terminal of multiple shifting deposit units is connected respectively with clock cable, Duo Gesuo
The scanning signal output terminal for stating shifting deposit unit is connected with a plurality of grid line one-to-one correspondence, and multiple shifting deposit units are answered
Position end is connected respectively with reseting signal line；
Each pressure sensitive unit includes first input end and the second input terminal, and the first of multiple pressure sensitive units is defeated
Enter end respectively with the reseting signal line to be connected, the second input terminal of each pressure sensitive unit is connected with power signal line.
2. display panel according to claim 1, which is characterized in that the non-display area is equipped with to post to the displacement
The power supply signal terminal of memory cell power supply, the power signal line are connected with the power supply signal terminal.
3. display panel according to claim 1, which is characterized in that the width of the reseting signal line is 15~30 μm.
4. display panel according to claim 1, which is characterized in that the pressure sensitive unit is Wheatstone bridge formula pressure
Force snesor；
The pressure sensitive unit further includes the first output terminal and second output terminal；The first input end and first output
The first voltage dependent resistor is in series between end, the second buckling electricity is in series between first output terminal and second input terminal
Resistance, is in series with third voltage dependent resistor between second input terminal and the second output terminal, the second output terminal and described
The 4th voltage dependent resistor is in series between first input end.
5. display panel according to claim 1, which is characterized in that the pressure sensitive unit is passed for silicon piezoresistance type pressure
Sensor；
The pressure sensitive unit further includes the first output terminal, second output terminal and the first edge being sequentially connected, the second side
Edge, third edge and the 4th edge；The first input end is connected with the first edge, first output terminal and described the
Two edges are connected, and second input terminal is connected with the third edge, and the second output terminal is connected with the 4th edge.
6. a kind of driving method of display panel, which is characterized in that the driving method of the display panel is applied to right such as will
It asks in 1,3~5 any one of them display panels, the driving method of the display panel includes：
One drive cycle of the display panel includes grid line driving period and pressure sensitive period；
The period is driven in the grid line, in the clock letter that the frame start signal and clock cable of the offer of frame start signal line provide
Under the action of number, in the two neighboring shifting deposit unit, the previous shifting deposit unit is sequentially to described in the latter
Shifting deposit unit exports shift control signal, and multiple shifting deposit units is made to carry out timesharing driving to a plurality of grid line；
Under the action of the reset signal provided in the pressure sensitive period, multiple shifting deposit units in reseting signal line
It resets, reset signal and the power signal line offer that multiple pressure sensitive units are provided in the reseting signal line
Under the action of power supply signal, sensing applies pressure on a display panel.
7. the driving method of display panel according to claim 6, which is characterized in that the non-display area of the display panel
Equipped with the power supply signal terminal for powering to the shifting deposit unit, the power signal line and the power supply signal terminal
It is connected；
Drive period and the pressure sensitive period in the grid line, the power supply signal terminal to the shifting deposit unit and
Multiple pressure sensitive units provide power supply signal.
8. the driving method of display panel according to claim 6, which is characterized in that drive period, institute in the grid line
The frame start signal for stating the offer of frame start signal line is high level signal；
The driving method of the display panel further includes：In the pressure sensitive period, the frame start signal line provides low electricity
Flat signal makes multiple pressure sensitive units and the electrostatic of multiple shifting deposit units pass through the frame start signal
Line is discharged.
9. the driving method of display panel according to claim 6, which is characterized in that the driving method of the display panel
It further includes：In the pressure sensitive period, the clock cable provides low level signal, makes multiple pressure sensing lists
The electrostatic of first and multiple shifting deposit units is discharged by the clock cable.
10. a kind of display device, which is characterized in that the display device includes showing such as Claims 1 to 5 any one of them
Panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004675.1A CN108172164A (en) | 2018-01-03 | 2018-01-03 | A kind of display panel and its driving method, display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810004675.1A CN108172164A (en) | 2018-01-03 | 2018-01-03 | A kind of display panel and its driving method, display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456259A (en) * | 2013-09-12 | 2013-12-18 | 京东方科技集团股份有限公司 | Grid electrode driving circuit, grid line driving method and display device |
| CN107230458A (en) * | 2017-07-25 | 2017-10-03 | 上海天马微电子有限公司 | Display panel and display device |
| CN107315506A (en) * | 2017-06-30 | 2017-11-03 | 上海天马微电子有限公司 | A kind of display base plate, display panel and display device |
| CN107315504A (en) * | 2017-06-30 | 2017-11-03 | 上海天马微电子有限公司 | A kind of array base palte, display panel and display device |
| CN107358905A (en) * | 2017-08-30 | 2017-11-17 | 厦门天马微电子有限公司 | A kind of display panel and electronic equipment |
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- 2018-01-03 CN CN201810004675.1A patent/CN108172164A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456259A (en) * | 2013-09-12 | 2013-12-18 | 京东方科技集团股份有限公司 | Grid electrode driving circuit, grid line driving method and display device |
| CN107315506A (en) * | 2017-06-30 | 2017-11-03 | 上海天马微电子有限公司 | A kind of display base plate, display panel and display device |
| CN107315504A (en) * | 2017-06-30 | 2017-11-03 | 上海天马微电子有限公司 | A kind of array base palte, display panel and display device |
| CN107230458A (en) * | 2017-07-25 | 2017-10-03 | 上海天马微电子有限公司 | Display panel and display device |
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