CN208111041U - display panel and display device - Google Patents
display panel and display device Download PDFInfo
- Publication number
- CN208111041U CN208111041U CN201820739883.1U CN201820739883U CN208111041U CN 208111041 U CN208111041 U CN 208111041U CN 201820739883 U CN201820739883 U CN 201820739883U CN 208111041 U CN208111041 U CN 208111041U
- Authority
- CN
- China
- Prior art keywords
- display panel
- detection
- pixel
- circuit
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of display panel and display device.Display panel includes viewing area and the peripheral region around viewing area, the first data line that viewing area is provided with the first sub-pixel and is electrically connected with the first sub-pixel, peripheral region is provided with crack detection circuit structure, crack detection circuit structure includes detection circuit cabling and the first detection switch circuit, the first end of first data line is electrically connected with the first end of detection circuit cabling, the second end of first data line is electrically connected by the first detection switch circuit with the second end of detection circuit cabling, and the second end of detection circuit cabling is for receiving detection voltage.Display panel can detecte out the fine crack on periphery, thus the generation for the problem of in time picking out defective products, this undesirable display panel is effectively prevent to cause display panel to fail in subsequent use process.
Description
Technical field
At least one embodiment of the disclosure is related to a kind of display panel and display device.
Background technique
Encapsulation film layer, flexible base board or the glass of general display panel periphery are easy to happen fine crack, lead to ring around
The crackle of steam peripherally in border enters display area, and the metal routing so as to cause display device is corroded or organic hair
Light film layer is etched, and then display panel is caused to fail.Currently, mainly by the way that anticracking is arranged in the neighboring area of display panel
Structure carrys out pre- Anti-cracking.
Utility model content
An at least embodiment for the disclosure provides a kind of display panel and display device.Display panel in the disclosure can
To detect the fine crack on periphery, in time pick out defective products, this undesirable display panel is effectively prevent to exist
The metallic circuit of display device is caused to be corroded since extraneous steam enters inside display panel in subsequent use process, into
And the problem of causing display panel to fail.
An at least embodiment for the disclosure provides a kind of display panel, including viewing area and around the periphery of the viewing area
Area, the first data line that the viewing area is provided with the first sub-pixel and is electrically connected with first sub-pixel, the periphery
Area is provided with crack detection circuit structure, and the crack detection circuit structure includes detection circuit cabling and the first detection switch electricity
Road, the first end of first data line are electrically connected with the first end of the detection circuit cabling, and the of first data line
Two ends are electrically connected by the first detection switch circuit with the second end of the detection circuit cabling, the detection circuit cabling
Second end for receive detection voltage.
In some instances, display panel further includes voltage application portion, and the voltage application portion is walked with the detection circuit
The second end of line is electrically connected and for applying the detection voltage to the detection circuit cabling.
In some instances, the voltage application portion includes the first engagement pad being arranged in the peripheral region, and described
One engagement pad is configured as contacting with detection probe or being electrically connected with drive circuit board.
In some instances, display panel further includes switching signal applying unit, the switching signal applying unit and described the
The control terminal of one detection switch circuit is electrically connected, and for applying switching signal to the first detection switch circuit to control
State the on or off of the first detection switch circuit.
In some instances, the switching signal applying unit includes that the second engagement pad of the peripheral region is arranged in, described
Second engagement pad is configured as contacting with detection probe or being electrically connected with drive circuit board.
In some instances, the first detection switch circuit includes at least one thin film transistor (TFT), the film crystal
The grid of pipe is electrically connected with the switching signal applying unit, one of source electrode and drain electrode of the thin film transistor (TFT) and first number
It is electrically connected according to line, another is electrically connected with the second end of the detection circuit cabling.
In some instances, display panel further includes resistive element, is connected to second end and the institute of first data line
It states between the first detection switch circuit, or is connected to the second of the first detection switch circuit and the detection circuit cabling
Between end.
In some instances, the detection circuit cabling is arranged around the viewing area.
In some instances, the detection circuit cabling includes serpentine configuration.
In some instances, the viewing area is additionally provided with the second sub-pixel and is electrically connected with second sub-pixel
Second data line, the display panel further include the second detection switch circuit, the switching signal applying unit and second inspection
The control terminal connection of switching circuit is surveyed, second data line is electrically connected with the second detection switch circuit and can be by described
Second detection switch circuit receives the display panel for showing the data-signal of black picture or white picture.
In some instances, first sub-pixel is different with the luminescent color of second sub-pixel.
In some instances, each of first sub-pixel and second sub-pixel include pixel-driving circuit with
And organic illuminating element, and the pixel-driving circuit is configured as when received display data voltage is equal with supply voltage
Not output driving current.
An at least embodiment for the disclosure provides a kind of display device, the display surface provided including any of the above-described embodiment
Plate.
An at least embodiment for the disclosure provides a kind of crack detecting method of display panel, and the display panel is above-mentioned
The display panel that any embodiment provides, the method includes：So that the display panel shows black picture, described the is connected
One detection switch circuit, and apply the detection voltage in the second end of the detection circuit cabling；Alternatively, making the display
Display panel white picture is connected the first detection switch circuit, and applies institute in the second end of the detection circuit cabling
State detection voltage.
In some instances, in the case where showing the black picture, if first sub-pixel for emitting light, judges institute
It is cracked to state peripheral region；Alternatively, if first sub-pixel does not shine, sentencing in the case where showing the white picture
The peripheral region of breaking is not cracked.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the embodiment of the present disclosure, the attached drawing to embodiment is simply situated between below
It continues, it should be apparent that, the accompanying drawings in the following description merely relates to some embodiments of the present disclosure, rather than the limitation to the disclosure.
Figure 1A is the partial simplified structural schematic diagram for the display panel that an example of one embodiment of the disclosure provides；
Figure 1B and Fig. 1 C is the principle for judging whether display panel periphery area is cracked that one embodiment of the disclosure provides
Schematic diagram；
Fig. 2 is the partial simplified structural schematic diagram for the display panel that another example of one embodiment of the disclosure provides；
Fig. 3 A is the exemplary pixels driving circuit and organic hair that the first sub-pixel in one embodiment of the disclosure includes
The structural schematic diagram of optical element；
Fig. 3 B is the driver' s timing figure of exemplary pixels driving circuit shown in Fig. 3 A；
Fig. 4 A is a kind of partial structural diagram for display panel that an example of one embodiment of the disclosure provides；
Fig. 4 B is a kind of partial structural diagram for display panel that another example of one embodiment of the disclosure provides；
Fig. 4 C is a kind of partial structural diagram for display panel that another example of one embodiment of the disclosure provides；
Fig. 4 D is a kind of partial structural diagram for display panel that another example of one embodiment of the disclosure provides；
Fig. 4 E is a kind of partial structural diagram for display panel that another example of one embodiment of the disclosure provides；
Fig. 4 F is a kind of partial structural diagram for display panel that another example of one embodiment of the disclosure provides；
Fig. 5 A is the detection process of the crack detecting method for the display panel that an example of another embodiment of the disclosure provides
Schematic diagram；
Fig. 5 B is the detection of the crack detecting method for the display panel that another example of another embodiment of the disclosure provides
Journey schematic diagram.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present disclosure clearer, below in conjunction with the embodiment of the present disclosure
Attached drawing, the technical solution of the embodiment of the present disclosure is clearly and completely described.Obviously, described embodiment is this public affairs
The a part of the embodiment opened, instead of all the embodiments.Based on described embodiment of the disclosure, ordinary skill
Personnel's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the range of disclosure protection.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object."upper", "lower", "left", "right" etc. are only used for indicating that relative position is closed
System, after the absolute position for being described object changes, then the relative positional relationship may also correspondingly change.
Under study for action, the inventor of the present application discovered that：Anti-cracking structure currently used for display panel generally cannot be completely pre-
The generation of anti-fine crack, part display panel periphery still suffers from crackle generation, and this small crackle passes through naked eyes nothing
Method observes, it is therefore desirable to a kind of method for the fine crack that convenience, efficient detection display panel periphery occur.
An at least embodiment for the disclosure provides a kind of display panel and display device.The display panel includes viewing area
With surround viewing area peripheral region, wherein viewing area be provided with the first sub-pixel and be electrically connected with the first sub-pixel first
Data line, peripheral region are provided with crack detection circuit structure, and crack detection circuit structure includes detection circuit cabling and the first inspection
Survey switching circuit, wherein the first end of the first data line is electrically connected with the first end of detection circuit cabling, and the of the first data line
Two ends are electrically connected by the first detection switch circuit with the second end of detection circuit cabling, and the second end of detection circuit cabling is used for
Receive detection voltage.
The crack detection circuit structure that display panel in the embodiment of the present disclosure includes can detecte out display panel periphery
Fine crack effectively prevent this undesirable display panel in subsequent use process in time pick out defective products
In cause the metallic circuit of display device to be corroded since extraneous steam enters inside display panel, in turn result in display surface
The problem of plate fails.
The display panel and display device of embodiment of the present disclosure offer are described with reference to the accompanying drawing.
One embodiment of the disclosure provides a kind of display panel, and Figure 1A is a kind of display surface that an example of the present embodiment provides
The partial simplified structural schematic diagram of plate.
As shown in Figure 1A, which includes viewing area 100 and the peripheral region 200 around viewing area 100.Viewing area
100 are provided with the array of sub-pixels including multiple sub-pixels and provide a plurality of grid line of scanning signal for the array of sub-pixels
The multiple data lines of (not shown) and offer data-signal.These grid lines extend along the direction parallel with X-direction, such as often
Grid line corresponds to a line sub-pixel；These data lines extend along the direction parallel with Y-direction, such as every data line corresponds to
One column sub-pixel.Multiple sub-pixel includes at least one first sub-pixel 110, and correspondingly the multiple data lines include and first
At least one the first data lines 120 that sub-pixel 110 is electrically connected.The sub-pixel combinations of different colours are capable of forming pixel unit,
Such as a red sub-pixel, a green sub-pixels and a blue subpixels combine to form a pixel unit.
Figure 1A it is merely exemplary illustrate first sub-pixel 110 being electrically connected with first data line 120, so
And it should be understood that first sub-pixel of column 110 is electrically connected with the first data line of same 120 in such as viewing area 100, this column
First sub-pixel 110 is the sub-pixel for showing same color (such as green).The first data line 120 that display panel includes refers to extremely
Few first data line 120, such as there are a plurality of first data line 120, from different first data line, 120 electricity
The first sub-pixel of different lines 110 of connection can show identical color, can also show different colors.
As shown in Figure 1A, the peripheral region 200 of the display panel is provided with crack detection circuit structure 210, crack detection electricity
Line structure 210 includes at least one detection circuit cabling 211 and at least one first detection switch circuit 212.As shown in Figure 1A,
The first end 121 of first data line 120 is electrically connected with the first end 2111 of detection circuit cabling 211, the first data line 120 with
The opposite second end 122 of first end 121, by the first detection switch circuit 212, with detection circuit cabling 211 and first end
2111 opposite second ends 2112 are electrically connected, and the second end 2112 of detection circuit cabling 211 is for receiving detection voltage.
It should be noted that the first end 121 of above-mentioned first data line 120 refers to the side of the first data line 120, detection
The first end 2111 of circuit trace 211 refers to the side connecting with the first end 121 of the first data line 120, and non-required is
Actual endpoint or end.For example, when at least one the first data lines 120 first end 121 and detection circuit cabling 211 the
When one end 2111 is electrically connected, the first end 2111 of detection circuit cabling 211 is that the first end 121 of the first data line 120 is connected to
The connecting side of the detection circuit cabling 211.Equally, the second end 122 of the first data line 120 refers to the another of the first data line 120
Side, the second end 2112 of detection circuit cabling 211 are the side that it connect with the subsequent voltage application portion 220 mentioned, and
And non-required is actual endpoint or end.For the sake of clarity, Figure 1A has only symbolically indicated the first data line 120
First end 121, the first end 2111 of detection circuit cabling 211, the second end 122 of the first data line 120 and detection circuit are walked
The second end 2112 of line 211.
It is electrically connected in addition, it should be noted that, the first data line in the display panel only refers to detection circuit cabling
Data line.The first data line 120 being electrically connected with detection circuit cabling 211 shown in Figure 1A, is electrically connected with first data line 120
The first sub-pixel 110 and crack detection circuit structure 210 connect be collectively as the peripheral region detected and judge display panel
No cracked crack detection structure.
Display panel provided in this embodiment, can be timely by power-up detection when fine crack occurs in its peripheral region
Ground is selected out, to effectively prevent this undesirable display panel in subsequent use process since extraneous steam enters
The problem of causing the metallic circuit of display device to be corroded inside display panel, in turn resulting in display panel failure.
For example, as shown in Figure 1A, which further includes voltage application portion 220, the voltage application portion 220 and detection electricity
The second end 2112 of road cabling 211 is electrically connected, and for applying detection voltage to detection circuit cabling 211.When the first detection is opened
When powered-down road 212 is in the conductive state, voltage application portion 220 while applying detection voltage to detection circuit cabling 211,
Apply detection voltage to the first data line 120.For example, the detection voltage for being applied to the first data line 120 can be the first sub- picture
Element 110 is for display data voltage when showing.
It for example, voltage application portion 220 can have different implementations, such as can be (the ET survey of electrical signal testing cushion
At least one of try Pad) and flexible print circuit binding pad (FPC Bonding Pad).Therefore, according to voltage application portion 220
Different implementations, the crack detection circuit structure in the display panel has different connection types, correspondingly has not
Same crackle test mode.When voltage application portion 220 is electrical signal testing cushion, then corresponding crackle test can be in display surface
The electrical testing stage of plate carries out；When voltage application portion 220 is flexible print circuit binding pad, then corresponding crackle test can
It is carried out in the mould group test phase of display panel.
For example, as shown in Figure 1A, in one example, voltage application portion 220 includes that the first contact of peripheral region is arranged in
Pad 221, which can be configured as contacts with detection probe (not shown), which can connect
It is connected to the detection device etc. being located at outside display panel, to provide voltage for voltage application portion 220, with to detection circuit cabling
211 apply detection voltage.
For example, in another example, which can be additionally configured to drive circuit board (in figure not
Show) it is electrically connected, which both can be set inside display panel, also can be set outside display panel, and
It is installed on display panel for example, by modes such as flexible circuit boards (FPC).The drive circuit board is that voltage application portion 220 provides
Voltage, to apply detection voltage to detection circuit cabling 211.
For example, as shown in Figure 1A, which further includes switching signal applying unit 230, switching signal applying unit 230 with
The control terminal 2120 of first detection switch circuit 212 is electrically connected, and for applying switching signal to the first detection switch circuit 212
To control the on or off of the first detection switch circuit 212.
For example, switching signal applying unit 230 there can be different implementations, such as can similarly be surveyed for electrical signal
At least one of examination pad and flexible print circuit binding pad.Therefore, according to the different implementations of switching signal applying unit 230,
Crack detection circuit structure in the display panel has different connection types.
For example, as shown in Figure 1A, in one example, switching signal applying unit 230 includes that peripheral region 200 is arranged in
Two engagement pads 231, which can be configured as contacts with detection probe (not shown), the detection probe
It may be coupled to the detection device etc. being located at outside display panel, so that voltage is provided for switching signal applying unit 230, with control
The on or off of first detection switch circuit 212.
For example, in another example, which can be additionally configured to drive circuit board (in figure not
Show) it is electrically connected, which both can be set inside display panel, also can be set outside display panel, and
It is installed on display panel for example, by modes such as flexible circuit boards.The drive circuit board is that switching signal applying unit 230 provides
Voltage, to control the on or off of the first detection switch circuit 212.
For example, the voltage application portion and switching signal applying unit in the present embodiment can be same type, for example, voltage is applied
Add portion and switching signal applying unit can be all that electrical signal testing cushion or flexible print circuit binding are padded, the present embodiment is not limited to
This.
For example, voltage application portion and switching signal applying unit can also be different type, for example, voltage application portion and switch
One of signal applying unit is one of electrical signal testing cushion and flexible print circuit binding pad, and voltage application portion and switching signal are applied
Add in portion another for electrical signal testing cushion and flexible print circuit binding pad in another.The present embodiment does not make this
Limitation, can be designed according to the actual situation.
For example, as shown in Figure 1A, the viewing area 100 of display panel be additionally provided with the second sub-pixel 130 and with second son
The second data line 140 that pixel 130 is electrically connected.Second data line 140 is the data not being electrically connected with detection circuit cabling 211
Line；Second sub-pixel of column 130 is electrically connected with the second data line of same 140 in viewing area 100, this second sub-pixel of column
130 be the sub-pixel for showing same color (such as red or blue).
Figure 1A it is merely exemplary illustrate second sub-pixel 130 being electrically connected with second data line 140, show
Show that the second data line 140 that panel includes refers at least one the second data lines 140, such as there are a plurality of second data lines 140
In the case where, identical color can be shown from the second sub-pixel of different lines 130 of different second data lines 140 electrical connection, it can also
Show different colors.
For example, the first sub-pixel 110 can be identical with the color of the second sub-pixel 130, such as the two is not adjacent to each other, point
Belong to different pixel units.
For example, the color of the first sub-pixel 110 is different from the color of the second sub-pixel 130.For example, the first sub-pixel 110
For green sub-pixels, the second sub-pixel 130 is blue subpixels and/or red sub-pixel, the present embodiment to this with no restriction.
For example, as shown in Figure 1A, in one example, display panel further includes the second detection switch circuit 213, switch letter
Number applying unit 230 can be connect with the control terminal of the second detection switch circuit 213, to control the second detection switch circuit 213
On or off；The first end of second detection switch circuit 213 is electrically connected with the second data line 140, and second end can be with electricity
Applying unit 220 is pressed to be electrically connected.
For example, the second detection switch circuit 213 may include thin film transistor (TFT), switching signal applying unit 230 can be with this
The grid of thin film transistor (TFT) is connected to control the on or off of the second detection switch circuit, and the second detection switch circuit includes
Thin film transistor (TFT) source electrode and drain electrode in one be electrically connected with the second data line 140, and another is for receiving display surface
Plate is used to show the data-signal of black picture or white picture.
For example, as shown in Figure 1A, the second data line 140 can pass through the second detection switch circuit 213 and voltage application portion
220 electrical connections, when second detection switch circuit of the control of switching signal applying unit 230 213 is in the conductive state, voltage application portion
220 apply voltage to the second data line 140 by the second detection switch circuit 213, so that display panel is for showing that black is drawn
Face or white picture.
For example, the voltage application portion 220 may include that multiple voltages apply sub-portion, respectively to 140 He of the second data line
First data line 120 applies different voltage.
For example, the second data line 140 can also be by the second detection switch circuit 213 and different from voltage application portion 220
Other provide voltage signals components connection, the present embodiment to this with no restriction.
For example, the second detection switch circuit 213 can also be by other offer switches different from switching signal applying unit 230
The component of signal connects, as long as the second detection switch circuit 213 can be opened simultaneously with the first detection switch circuit 212.
Figure 1B and Fig. 1 C is that the principle for judging whether display panel periphery area is cracked that the embodiment of the present disclosure provides is shown
It is intended to.In the schematic illustration shown in Figure 1B and Fig. 1 C, with voltage application portion and switching signal applying unit for the same component
For be described, but not limited to this.
For example, as shown in Figure 1B, switching signal applying unit 230 to the first detection switch circuit 212 apply switching signal with
Control the conducting of the first detection switch circuit 212.When display panel periphery area is not cracked, detection circuit cabling 211 is in
On state from voltage application portion 220 to detection circuit cabling 211, and passes through the first detection switch circuit 212 to the first number
Apply detection voltage according to line 120, so that it is (empty in Figure 1B so that detection circuit cabling 211 and the first data line 120 is formed closed circuit
Circuit shown in line arrow), there is no potential difference in the closed circuit, therefore, the first sub-pixel 110 and the first data line 120 that
Voltage at the P point of this electrical connection is equal with the detection voltage that voltage application portion 220 applies, and due to not having voltage difference,
It does not drive a current through P point and enters the first sub-pixel 110 being attached thereto, is i.e. the first sub-pixel 110 does not shine.
As shown in Figure 1 C, switching signal applying unit 230 applies switching signal to the first detection switch circuit 212 to control the
The conducting of one detection switch circuit 212.When display panel periphery area is cracked, detection circuit cabling 211 is in non-conduction shape
State (for example, fracture), that is, form open circuit or approximate open circuit, voltage application portion 220 are only capable of through the first detection switch circuit
212 apply detection voltage to the first data line 120, at this point, no longer there is closed circuit shown in Figure 1B, the first sub-pixel 110
There are potential differences between the detection voltage that the P point being electrically connected to each other with the first data line 120 and voltage application portion 220 apply, that is,
Voltage at P point is less than the detection voltage that voltage application portion 220 applies.At this point, driving the electric current of sub-pixel from the first data line
120 are flowed into the first sub-pixel 110 being attached thereto by P point, to drive organic illuminating element 1310 therein to shine, i.e.,
First sub-pixel 110 shines.
For example, the partial simplified structural schematic diagram for the display panel that another example that Fig. 2 is the present embodiment provides.
As shown in Fig. 2, in this example, compared with situation shown in figure 1A, display panel can further include electricity
Resistance element 240, the resistive element 240 can connect the second end 122 and the first detection switch circuit in the first data line 120
(not shown) between 212, or it is connected to the second end of the first detection switch circuit 212 and detection circuit cabling 211
Between 2112, this makes the second end 122 from the 2112 to the first data line of second end 120 of detection circuit cabling 211 and passes through
The conductive path of first detection switch circuit 212 is needed by resistive element 240.It should be noted that provided in this embodiment
Resistive element 240 can increase between the second end 122 of the first data line 120 and the first detection switch circuit 212 or first
Voltage drop between detection switch circuit 212 and the second end 2112 of detection circuit cabling 211, thus further increases and is showing
Detection effect when panel periphery area is cracked.
For example, working as display when being provided with resistive element shown in Fig. 2 in schematic illustration as illustrated in figures ib and 1 c
When panel periphery area is not cracked, detection circuit cabling 211 is in the conductive state, from voltage application portion 220 to detection circuit
Cabling 211 apply detection voltage circuit trace 211 after testing be transmitted on the first data line 120 with the first sub-pixel
Voltage drop is not present during the P point of 110 electrical connections, therefore, the detection that voltage and voltage application portion 220 at P point apply
Voltage is equal, and due to not having voltage drop, does not drive a current through P point and enters the first sub-pixel 110 being attached thereto,
I.e. the first sub-pixel 110 does not shine.
For example, working as display when being provided with resistive element shown in Fig. 2 in schematic illustration as illustrated in figures ib and 1 c
When panel periphery area is cracked, detection circuit cabling 211 is in nonconducting state, and voltage application portion 220 only passes through the first inspection
It surveys switching circuit 212 and applies detection voltage to the first data line 120, apply from voltage application portion 220 to the first data line 120
Detecting voltage, there are voltage drops during the P point being transmitted on the first data line 120, and therefore, the voltage at P point is less than electricity
The detection voltage for pressing applying unit 220 to apply.It drives the electric current of sub-pixel to be flowed into from the first data line 120 by P point to connect therewith
In the first sub-pixel 110 connect, to drive organic illuminating element 1310 therein to shine, i.e., first sub-pixel 110 shines.
Fig. 3 A is the exemplary pixels driving circuit and organic illuminating element that the first sub-pixel in the present embodiment includes
Structural schematic diagram, which is configured as when received display data voltage is equal with supply voltage
Not output driving current.Fig. 3 B is the driver' s timing figure of the exemplary pixels driving circuit.
As shown in Figure 3A and Figure 3B, which includes 6 thin film transistor (TFT)s (TFT) and two capacitors
C1 and C2,6 TFT are p channel transistor, and T1-T5 is switching transistor, and DTFT is driving transistor.The pixel driver
Circuit further includes two control signal end S1 and S2, a data signal end Vdata(the display number as inputted by data line
It is believed that number) and three voltage signal end VDD、VSS、VREF.For example, voltage signal end VDD、VSS、VREFIt is d. c. voltage signal
End, such as voltage signal end VDDAnd VSSIn, the former is high voltage end, and the latter is low-voltage end (such as ground terminal), voltage letter
Number end VREFFor reference voltage end, voltage value, which can according to need, is selected as low-voltage (such as ground connection).
Shown in the timing diagram of Fig. 3 B the 1. the stage be the pixel-reset stage：First control signal S1 be low level, second
Control signal S2 is low level, data-signal VdataFor low level.At this point, switching transistor T1 to T5 is both turned on.At this time due to
T1 conducting, driving transistor DTFT are in diode-connected state.The drain voltage of DTFT is V at this timeDD+Vth.In 1. stage
Finally, A point current potential reaches VDD+Vth, B point current potential is VREF, C point current potential is VDD。
When carrying out display driving, for example, the 2. stage, i.e. data write phase, the first control shown in the timing diagram
Signal S1 is in high level, and second control signal S2 is in low level, data-signal VdataIn high level, at this point, switch is brilliant
Body pipe T1, T4 and T5 conducting, switching transistor T2 and T3 cut-off.A point current potential is VDD+Vth, B point current potential is VREF, C point current potential is
Vdata, capacitor C1 and C2 are in charged state.
The 3. stage shown in the timing diagram, i.e., in light emitting phase, first control signal S1 is in low level, the second control
Signal S2 is in high level, data-signal VdataIn low level, at this point, switching transistor T1, T4 and T5 end, crystal is switched
Pipe T2 and T3 conducting.A point current potential is 2VDD+Vth-Vdata, B point current potential is VREF+VDD-Vdata, C point current potential is VDD, for driving
Voltage difference V for transistor DTFT, between grid and source electrodegs=VDD+Vth-Vdata, DTFT is in a saturated state, is organic
Light-emitting component 1310 charges, and exported electric current is：
I=1/2* β * (Vgs-Vth)2
=1/2* β * (VDD+Vth-Vdata-Vth)2
=1/2* β * (VDD-Vdata)2
Wherein, β is a constant value, in supply voltage VDDIn the case where constant, the size and data-signal of driving current I
Vdata(i.e. display data voltage) is directly related.As data-signal VdataEqual to supply voltage VDDIn the case where, drive transistor
The output electric current I of DTFT is zero, namely flows through organic illuminating element 1310 without electric current, correspondingly includes the pixel-driving circuit
The first sub-pixel do not shine, that is, show black；Correspondingly as data-signal VdataNot equal to supply voltage VDDIn the case where, driving
The output electric current I of transistor DTFT is not zero, namely has electric current to flow through organic illuminating element 1310, correspondingly includes that the pixel is driven
First sub-pixel for emitting light of dynamic circuit shows white, and data-signal VdataWith supply voltage VDDDifference it is bigger, then export electricity
Stream I is bigger, and the grayscale that corresponding sub-pixel is shown is higher.
It should be understood that the pixel-driving circuit of the sub-pixel of the display panel of the embodiment of the present disclosure is not limited to shown in Fig. 3 A
Circuit, can also use the circuit structure of other forms, as long as meeting equal with supply voltage in received display data voltage
When not output driving current.
As shown in Figure 1B and Fig. 3 A, Fig. 3 B, the not cracked situation around display panel is carrying out crack detection mistake
Cheng Zhong, in the supply voltage V for the pixel-driving circuit that the detection voltage that voltage application portion 220 applies is the first sub-pixel 110DD
When, due to the V of voltage (i.e. display data voltage on the first data line 120) and the application of voltage application portion 220 at P pointDDPhase
Deng, therefore, the display data voltage V on the first data line 120data=VDD.According to the formula of above-mentioned driving current I, work as display
Data voltage VdataWith supply voltage VDDWhen equal, driving current I is zero, that is, flows into organic illuminating element without driving current
In, therefore in not cracked situation around the display panel, (such as a column) first son for being connect with the first data line 120
Pixel 110 does not shine, to concealed wire occur.
As shown in Fig. 1 C and Fig. 3 A, Fig. 3 B, the cracked situation around display panel is applied in voltage application portion 220
The detection voltage added is supply voltage VDDWhen, since the voltage at P point is less than the detection voltage that voltage application portion 220 applies, because
This, the display data voltage V on the first data line 120data<VDD.According to the formula of above-mentioned driving current I, when display data electricity
Press VdataWith supply voltage VDDWhen unequal, driving current I is not zero, that is, and there is driving current to flow into organic illuminating element, because
This, around the display panel in cracked situation, (such as a column) first sub-pixel for being connect with the first data line 120
110 shine.
Whether display panel provided in this embodiment effectively can judge peripheral region by the luminous situation of the first sub-pixel
It is cracked, to improve the recall rate of peripheral region crackle.
For example, the second sub-pixel provided in this embodiment also includes pixel-driving circuit shown in Fig. 3 A and organic light emission
Element, since the second data line being electrically connected with the second sub-pixel will not be electrically connected (for example, forming closure with detection circuit cabling
Circuit), therefore, the crackle of display panel periphery will not influence the luminance of the second sub-pixel.
Fig. 4 A is the partial structural diagram for the display panel that an example of the embodiment of the present disclosure provides, the example tool of Fig. 4 A
Body realizes the simplified structure of Figure 1A or shown in Fig. 2, and can principle shown in application drawing 1B and Fig. 1 C and Fig. 3 A and Fig. 3 B
Whether cracked detect peripheral region.
For example, as shown in Figure 4 A, the peripheral region 200 of display panel includes binding area (in the figure lower section of viewing area
Peripheral region), which for example can be used for flexible circuit board pad, binding of IC board pads 250 etc..For example, the IC
Circuit can be data driving chip.
For example, the first end of detection circuit cabling 211 is located at the side in the separate binding area of viewing area 100, the first data
The first end of line 120 is located at the side in the separate binding area of viewing area 100, and the second end of the first data line 120 is located at viewing area
The side in 100 close binding area.
For example, as shown in Figure 4 A, detection circuit cabling 211 is set in peripheral region 200 at least partially surrounding viewing area 100
It sets.
For example, detection circuit cabling 211 may include along the part that Y-direction the extends and in X direction part that extends.
For example, as shown in Figure 4 A, display panel includes the center line 300 extended along Y-direction, detection circuit cabling 211 is wrapped
Include two parts cabling positioned at 300 two sides of center line and symmetrical, that is, detection circuit cabling 211 is distributed in viewing area 100 and exists
The side in the separate binding area of two sides and viewing area 100 in X-direction.
For example, as shown in Figure 4 A, two parts detection circuit cabling 211 positioned at 300 left and right sides of center line is respectively two
Item does not have the detection circuit cabling of electrical connection, and detection accuracy so can be improved, convenient for occurring on locating and displaying panel
The region of micro-crack.But the present embodiment is without being limited thereto, for example, being located at two parts detection circuit of 300 left and right sides of center line
Cabling 211 or same detection circuit cabling 211 (i.e. two parts detection circuit cabling 211 has electrical connection).
For example, as needed, more detection circuit cablings 211 can also be arranged, every detection circuit cabling corresponds to
A part of the neighboring area of display panel.For example, for situation shown in figure 1A, the respectively left side periphery of display panel
Area, right periphery area and upper perimeter, which are distinguished you can well imagine, supplies a detection circuit cabling can thus in the case where there is micro-crack
With by testing result determine micro-crack appear in left side peripheral region, in right periphery area and upper perimeter area which.
For example, as shown in Figure 4 A, being located at 300 left and right sides of center line, and be electrically connected with detection circuit cabling 211
The quantity of the first data line 120 may be the same or different.
For example, as shown in Figure 4 A, it is located at the left and right sides of center line 300 and is electrically connected with detection circuit cabling 211
The position of first data line 120, can be symmetrical relative to center line 300, can also be with mal-distribution, and the present embodiment is to this
With no restriction.
For example, voltage application portion 220 and switching signal applying unit 230 are that electrical signal is surveyed in example shown in Fig. 4 A
The crack detection of examination pad, the display panel carries out in the electrical testing stage of display panel.At this point, the flexible print in display panel
Brush circuit, which binds pad 260 and crack detection circuit structure 210, does not have electrical connection.
For example, as shown in Figure 4 A, the display panel that this example provides includes two electricity positioned at 300 left and right sides of center line
Signal testing pad is learned, each electrical signal testing cushion is respectively two parts detection circuit cabling 211 for being located at 300 two sides of center line
Apply detection voltage.The present embodiment is without being limited thereto, and an electrical signal testing cushion can also only be arranged.
For example, as shown in Figure 4 A, the first detection switch circuit 212 includes at least one thin film transistor (TFT) 2121, film is brilliant
The grid (the as control terminal of the first detection switch circuit 212) of body pipe 2121 is electrically connected, film with switching signal applying unit 230
One of source electrode and drain electrode of transistor 2121 is electrically connected with the first data line 120, another with detection circuit cabling 211 second
End electrical connection.
For example, schematically, the first detection switch circuit 212 in example shown in Fig. 4 A includes respectively at for detecting
The whether cracked corresponding six cluster films transistor of the first data line 120 in the peripheral region of display panel, every cluster film crystal
Pipe includes first film transistor and the second thin film transistor (TFT), wherein first film transistor in every cluster film transistor
Grid be electrically connected with the electrical signal testing cushion in left side for being located at center line 300, the grid of the second thin film transistor (TFT) be located at
The electrical signal testing cushion on the right side of heart line 300 is electrically connected, and the source electrode of first film transistor is electrically connected with the first data line 120
It connects, the drain electrode of first film transistor is electrically connected with the source electrode of the second thin film transistor (TFT) and detection circuit cabling 211, and second is thin
The drain electrode of film transistor is electrically connected with another the first data line 120.
For example, first film transistor and the second thin film transistor (TFT) can be simultaneously in openings during electrical detection
State, can also one of them or one group it is in the open state to realize that the first detection switch circuit 212 is in the conductive state, this
Embodiment to this with no restriction.
The example of the embodiment of the present disclosure is with thin film transistor (TFT) 2121 for P-channel metal-oxide-semiconductor field effect transistor
(PMOS) it is described for.In specific example as shown in Figure 4 A, in the electrical testing stage, electrical signal testing cushion is used as and opens
OFF signal applying unit 230 is that the grid of thin film transistor (TFT) 2121 applies low level signal, thus the first detection switch circuit of control
212 conductings；Electrical signal testing cushion as voltage application portion 220, for detection circuit cabling 211 apply high level signal using as
Detect voltage.The example of the embodiment of the present disclosure is without being limited thereto, and thin film transistor (TFT) may be NMOS tft, at this time electricity
Signal testing pad applies high level as switching signal applying unit, for NMOS tft to control the first detection switch circuit
Conducting；Similarly, electrical signal testing cushion can remain as detection circuit cabling 211 and apply high level letter as voltage application portion 220
Number using as detection voltage.
For example, in the display panel shown in Fig. 4 A, in the electrical testing stage, the first detection of electrical signal testing cushion control
Switching circuit 212 is connected, and electrical signal testing cushion is detection circuit cabling 211, the first data line 120 application detection electricity simultaneously
Pressure is (for example, the detection voltage is equal to supply voltage VDD), the second data line is applied the first data-signal of display black picture,
Display panel is in the case where showing black picture, if the first sub-pixel for emitting light being electrically connected with the first data line 120, illustrates
Peripheral region is cracked；If the first sub-pixel being electrically connected with the first data line 120 does not shine, illustrate that peripheral region does not go out
Existing crackle, entire display panel only shows black picture at this time.
For example, being green sub-pixels in the first sub-pixel, and the first data line 120 is connect with same row green sub-pixels
When, if showing black picture in display panel, and to the display number that the first sub-pixel being electrically connected with the first data line 120 applies
According to voltage VdataFor VDDIn the case where, occur the bright line of green on display panel, this illustrates that peripheral region is cracked.This example is not
It is limited to this, the first sub-pixel may be the sub-pixel of other colors.
For example, in the display panel shown in Fig. 4 A, in the electrical testing stage, the first detection of electrical signal testing cushion control
Switching circuit 212 is connected, and electrical signal testing cushion is detection circuit cabling 211, the first data line 120 application detection electricity simultaneously
Pressure is (for example, the detection voltage is equal to supply voltage VDD), the second data line is applied the second data-signal for being displayed in white picture,
Display panel is in the case where being displayed in white picture, if the first sub-pixel for emitting light, illustrates that peripheral region is cracked, at this time entirely
Display panel is only displayed in white picture；If the first sub-pixel does not shine, illustrate that peripheral region is not cracked.
For example, being green sub-pixels in the first sub-pixel, and the first data line 120 is connect with same row green sub-pixels
When, if being displayed in white picture in display panel, and to the display number that the first sub-pixel being electrically connected with the first data line 120 applies
According to voltage VdataFor VDDIn the case where, occur the bright line of purple on display panel, illustrates that peripheral region is not cracked.
Fig. 4 B- Fig. 4 F is the partial structural diagram for the display panel that other examples of the embodiment of the present disclosure provide, Fig. 4 B-
The example of Fig. 4 F has implemented the simplified structure of Figure 1A or shown in Fig. 2 respectively, and can application drawing 1B and Fig. 1 C and Fig. 3 A
It is whether cracked with the detection of principle shown in Fig. 3 B peripheral region.
For example, as shown in Figure 4 B, unlike example shown in Fig. 4 A：In example shown in Fig. 4 B, detection circuit is walked
Line 211 includes serpentine configuration (such as S-shaped cabling, Z-shaped cabling, W-shaped cabling etc.), and the covering for peripheral region 200 can be improved
Rate, it is whether cracked so as to the peripheral region of preferably detecting display panel.In addition, the other structures in this example design
Identical as the other structures design in example shown in Fig. 4 A, details are not described herein.
For example, as shown in Figure 4 C, unlike example shown in Fig. 4 A：In example shown in Fig. 4 C, voltage application portion
220 and switching signal applying unit 230 be flexible print circuit binding pad, the crack detection of the display panel is in display panel
Mould group test phase carries out.Therefore, in mould group test phase, flexible print circuit binding pad is not only used as voltage application portion 220, but also
As switching signal applying unit 230.And electrical signal testing cushion 270 and crack detection circuit structure 210 do not have electrical connection.
For example, the flexible print circuit binding pad for the display panel that this example provides includes being located at center line (in Fig. 4 A
Center line 300) at left and right sides of two input ports, thus for positioned at center line two sides two parts detection circuit cabling 211
Apply detection voltage.This example is without being limited thereto, and the flexible print circuit binding pad in this example can also only include an input
Port.
It is identical as electrical signal testing cushion in the working principle of mould group test phase, flexible print circuit binding pad, here
It repeats no more.In addition, the other structures design in this example is identical as the other structures design in example shown in Fig. 4 A, herein
It repeats no more.
For example, as shown in Figure 4 D, unlike example shown in Fig. 4 A：In example shown in Fig. 4 D, in electrical testing
Stage, electrical signal testing cushion had not only included voltage application portion 220, but also including switching signal applying unit 230；Rank is tested in mould group
Section, flexible print circuit binding pad had not only included voltage application portion 220, but also including switching signal applying unit 230.Therefore, in Fig. 4 D
Shown in example, the crack detection circuit structure in the display panel both can detect display panel in the electrical testing stage
The fine crack on periphery can also detect the fine crack of display panel periphery in mould group test phase.
For embodiment shown in Fig. 4 D, voltage application portion 220 includes electrical signal testing cushion and flexible printing electricity simultaneously
Road binding pad, then corresponding crackle test can both carry out in the electrical testing stage of display panel, can also be in display panel
Mould group test phase carry out, two kinds of crackle test modes do not interfere each other, contradict.
Therefore, the crack detection circuit structure in the display panel of the embodiment both can be used in the electrical testing stage,
It can be used for thus can detect that the fine crack of display panel periphery in mould group test phase, it in time will be in display panel
Defective products is picked out, so that undesirable display panel both can be effectively prevented in subsequent use process due to extraneous steam
Inside into it, and the metallic circuit of display device is caused to be corroded, in turn results in display panel failure；It is again not in user
After being loaded with the mobile product of this bad display panel for a period of time, since crackle is gradually expanded, and cause mechanical
Damage, causes display screen to fail.
Display panel in the example no matter in electrical testing stage or mould group test phase, realize by crack detection
Principle with the crack detection of display panel shown in Fig. 4 A realize principle it is identical, which is not described herein again.
In above-mentioned each example, in the electrical testing stage, electrical signal testing cushion includes voltage application portion, and is believed including switch
Number applying unit；In mould group test phase, flexible print circuit binding pad not only includes voltage application portion, but also is applied including switching signal
Portion.
For example, as shown in Figure 4 E, unlike example shown in Fig. 4 A：In example shown in Fig. 4 E, voltage application portion
220 be electrical signal testing cushion, and switching signal applying unit 230 is flexible print circuit binding pad.Therefore, electrical signal testing cushion
For applying detection voltage for detection circuit cabling 211, flexible printing binding pad to the first detection switch circuit 212 for applying
Switching signal is to control the on or off of the first detection switch circuit 212.
For example, as illustrated in figure 4f, unlike example shown in Fig. 4 A：In example shown in Fig. 4 F, voltage application portion
220 be flexible print circuit binding pad, and switching signal applying unit 230 is electrical signal testing cushion.Therefore, flexible print circuit is tied up
For applying detection voltage for detection circuit cabling 211, electrical signal testing cushion is used for the first detection switch circuit 212 fixed pad
Apply switching signal to control the on or off of the first detection switch circuit 212.
In example shown in Fig. 4 E and Fig. 4 F, electrical signal testing cushion and flexible print circuit binding pad can be respectively as
Voltage application portion and switching signal applying unit, to realize the detection to display panel periphery area crackle.
Fig. 5 A is the detection process of the crack detecting method for the display panel that an example of another embodiment of the disclosure provides
Schematic diagram, the display panel in the present embodiment are the display panel that any of the above-described example provides.As shown in Figure 5A, specific steps packet
It includes：
S201：The first detection switch circuit and the second detection switch circuit is connected.
S202：Apply detection voltage in the second end of detection circuit cabling.
S203：The first data-signal for showing black picture is applied to the second data line.
For example, this example is by first turning on the second detection switch circuit, then to the second data line on display panel
Apply for showing that the first data-signal of black picture makes display panel show black picture.
For example, if the first sub-pixel for emitting light, judging that peripheral region occurs in the case where display panel shows black picture
Crackle.For example, when the first sub-pixel is green sub-pixels, and when the first data line is connect with same row green sub-pixels, if
In the case where display panel shows black picture, occurs the bright line of green on display panel, then judge that peripheral region is cracked.
For example, if the first sub-pixel does not shine, judging that peripheral region does not have in the case where display panel shows black picture
Crackle is occurred, at this point, entire display panel only shows black picture.
For example, the crack detecting method that this example provides both can be in the peripheral region of electrical testing stage detection display panel
It is whether cracked, can also whether cracked in the peripheral region that mould group test phase detects display panel, this example is unlimited
In this.
In this example, in the case where display panel shows black picture, the luminous situation of the first sub-pixel can be passed through
Judge whether the peripheral region of display panel is cracked.
Fig. 5 B is the detection process of the crack detecting method for the display panel that an example of another embodiment of the disclosure provides
Schematic diagram, the display panel in the present embodiment are the display panel that any of the above-described example provides.As shown in Figure 5 B, specific steps packet
It includes：
S211：The first detection switch circuit and the second detection switch circuit is connected.
S212：Apply detection voltage in the second end of detection circuit cabling.
S213：The second data-signal for being displayed in white picture is applied to the second data line.
For example, this example by first turning on the second detection switch circuit, is then applied the second data line of display panel
Add the second data-signal for being displayed in white picture, so that display panel is displayed in white picture.
For example, if the first sub-pixel does not shine, judging that peripheral region does not have in the case where display panel is displayed in white picture
Occur crackle.For example, when the first sub-pixel is green sub-pixels, and the first data line is connect with same row green sub-pixels
When, if occurring the bright line of purple on display panel in the case where display panel is displayed in white picture, then judge that peripheral region does not have
It is cracked.
For example, if the first sub-pixel for emitting light, judging that peripheral region occurs in the case where display panel is displayed in white picture
Crackle, at this point, entire display panel is only displayed in white picture.
For example, the crack detecting method that this example provides both can be in the peripheral region of electrical testing stage detection display panel
It is whether cracked, can also whether cracked in the peripheral region that mould group test phase detects display panel, this example is unlimited
In this.
In this example, in the case where display panel is displayed in white picture, the luminous situation of the first sub-pixel can be passed through
Judge whether the peripheral region of display panel is cracked.
Another embodiment of the present disclosure provides a kind of display device, which includes the aobvious of any of the above-described example offer
Show panel.Display device provided in this embodiment can also both detect in the electrical testing stage in mould group test phase
The fine crack on its periphery, in time picks out defective products, so that undesirable display device both can be effectively prevented subsequent
Since extraneous steam enters inside it in use process, and the metallic circuit inside it is caused to be corroded, in turn results in display
Failure of apparatus；Be not in again after user's use is loaded with this bad display device for a period of time, since crackle is gradually expanded, and
Mechanical damage is caused, display screen is caused to fail.
For example, the display device is aobvious for Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
The display devices such as showing device and TV including the display device, digital camera, mobile phone, wrist-watch, tablet computer, notebook electricity
Any product having a display function such as brain, navigator or component, the present embodiment are without being limited thereto.
There is the following to need to illustrate：
(1) in embodiment of the present disclosure attached drawing, the structure being related to the embodiment of the present disclosure is related only to, other structures can join
It examines and is commonly designed.
(2) in the absence of conflict, the feature in disclosure the same embodiment and different embodiment can be combined with each other.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure should be based on the protection scope of the described claims.
Claims (13)
1. a kind of display panel, which is characterized in that including viewing area and around the peripheral region of the viewing area, the viewing area is set
The first data line for being equipped with the first sub-pixel and being electrically connected with first sub-pixel, the peripheral region are provided with crack detection
Circuit structure, the crack detection circuit structure include detection circuit cabling and the first detection switch circuit,
Wherein, the first end of first data line is electrically connected with the first end of the detection circuit cabling, first data
The second end of line is electrically connected by the first detection switch circuit with the second end of the detection circuit cabling, the detection electricity
The second end of road cabling is for receiving detection voltage.
2. display panel according to claim 1, which is characterized in that it further include voltage application portion, the voltage application portion
It is electrically connected with the second end of the detection circuit cabling and for applying the detection voltage to the detection circuit cabling.
3. display panel according to claim 2, which is characterized in that the voltage application portion includes being arranged on the periphery
The first engagement pad in area,
First engagement pad is configured as contacting with detection probe or being electrically connected with drive circuit board.
4. display panel according to claim 1-3, which is characterized in that further include switching signal applying unit, institute
It states switching signal applying unit to be electrically connected with the control terminal of the first detection switch circuit, and is used for first detection switch
Circuit applies switching signal to control the on or off of the first detection switch circuit.
5. display panel according to claim 4, which is characterized in that the switching signal applying unit includes being arranged described
Second engagement pad of peripheral region,
Second engagement pad is configured as contacting with detection probe or being electrically connected with drive circuit board.
6. display panel according to claim 4, which is characterized in that the first detection switch circuit includes at least one
Thin film transistor (TFT),
The grid of the thin film transistor (TFT) is electrically connected with the switching signal applying unit,
One of source electrode and drain electrode of the thin film transistor (TFT) is electrically connected with first data line, another and the detection circuit
The second end of cabling is electrically connected.
7. display panel according to claim 4, which is characterized in that further include resistive element, be connected to first number
According between the second end and the first detection switch circuit of line, or it is connected to the first detection switch circuit and the inspection
Between the second end of slowdown monitoring circuit cabling.
8. display panel according to claim 1-3, which is characterized in that the detection circuit cabling is around described
Viewing area setting.
9. display panel according to claim 1-3, which is characterized in that the detection circuit cabling includes snakelike
Structure.
10. display panel according to claim 4, which is characterized in that the viewing area be additionally provided with the second sub-pixel with
And the second data line being electrically connected with second sub-pixel,
The display panel further includes the second detection switch circuit, the switching signal applying unit and second detection switch electricity
The control terminal on road connects,
Second data line is electrically connected with the second detection switch circuit and can be connect by the second detection switch circuit
The display panel is received for showing the data-signal of black picture or white picture.
11. display panel according to claim 10, which is characterized in that first sub-pixel and second sub-pixel
Luminescent color it is different.
12. display panel according to claim 10, which is characterized in that first sub-pixel and second sub-pixel
Each of include pixel-driving circuit and organic illuminating element, and the pixel-driving circuit is configured as received aobvious
Show when data voltage is equal with supply voltage not output driving current.
13. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739883.1U CN208111041U (en) | 2018-05-17 | 2018-05-17 | display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739883.1U CN208111041U (en) | 2018-05-17 | 2018-05-17 | display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208111041U true CN208111041U (en) | 2018-11-16 |
Family
ID=64114370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820739883.1U Active CN208111041U (en) | 2018-05-17 | 2018-05-17 | display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208111041U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559668A (en) * | 2019-01-28 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of display panel and its detection method, display device |
| CN109638023A (en) * | 2019-02-28 | 2019-04-16 | 昆山国显光电有限公司 | A kind of array substrate, display panel and film layer crack detecting method |
| CN109697947A (en) * | 2019-02-26 | 2019-04-30 | 昆山国显光电有限公司 | The method of display device and crackle sensing |
| CN109872634A (en) * | 2019-03-28 | 2019-06-11 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel |
| CN110164344A (en) * | 2019-06-06 | 2019-08-23 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110211493A (en) * | 2019-04-12 | 2019-09-06 | 上海天马微电子有限公司 | Flexible display panels and flexible display apparatus |
| WO2019218709A1 (en) * | 2018-05-17 | 2019-11-21 | 京东方科技集团股份有限公司 | Display panel and crack detection method therefor, and display device |
| CN110634411A (en) * | 2019-11-07 | 2019-12-31 | 京东方科技集团股份有限公司 | Display module and packaging detection method thereof |
| CN110838273A (en) * | 2019-11-21 | 2020-02-25 | 武汉天马微电子有限公司 | Crack detection method for display panel |
| CN110853558A (en) * | 2019-12-19 | 2020-02-28 | 京东方科技集团股份有限公司 | Flexible display screen, detection method thereof and display device |
| CN111044578A (en) * | 2019-12-31 | 2020-04-21 | 厦门天马微电子有限公司 | Display panel, crack position positioning method thereof and display device |
| WO2020082657A1 (en) * | 2018-10-24 | 2020-04-30 | 昆山国显光电有限公司 | Display panel and display apparatus |
| WO2020107796A1 (en) * | 2018-11-30 | 2020-06-04 | 武汉华星光电技术有限公司 | Display panel and crack detection method for display panel |
| WO2020107797A1 (en) * | 2018-11-29 | 2020-06-04 | 武汉华星光电技术有限公司 | Display panel and method for detecting crack thereof |
| CN111508401A (en) * | 2020-06-12 | 2020-08-07 | 京东方科技集团股份有限公司 | Crack detection circuit, display panel and crack detection method |
| WO2020215176A1 (en) * | 2019-04-22 | 2020-10-29 | 深圳市柔宇科技有限公司 | Display panel and display device |
| WO2021068402A1 (en) * | 2019-10-08 | 2021-04-15 | 武汉华星光电半导体显示技术有限公司 | Crack detection circuit and display panel |
| CN115561571A (en) * | 2022-01-13 | 2023-01-03 | 深圳荣耀智能机器有限公司 | Crack detection circuit, crack detection system, integrated circuit and electronic equipment |
-
2018
- 2018-05-17 CN CN201820739883.1U patent/CN208111041U/en active Active
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218709A1 (en) * | 2018-05-17 | 2019-11-21 | 京东方科技集团股份有限公司 | Display panel and crack detection method therefor, and display device |
| CN110503907B (en) * | 2018-05-17 | 2024-04-05 | 京东方科技集团股份有限公司 | Display panel, crack detection method thereof and display device |
| US11232728B2 (en) | 2018-05-17 | 2022-01-25 | Boe Technology Group Co., Ltd. | Display panel and crack detecting method thereof, display apparatus |
| CN110503907A (en) * | 2018-05-17 | 2019-11-26 | 京东方科技集团股份有限公司 | Display panel and its crack detecting method, display device |
| WO2020082657A1 (en) * | 2018-10-24 | 2020-04-30 | 昆山国显光电有限公司 | Display panel and display apparatus |
| WO2020107797A1 (en) * | 2018-11-29 | 2020-06-04 | 武汉华星光电技术有限公司 | Display panel and method for detecting crack thereof |
| WO2020107796A1 (en) * | 2018-11-30 | 2020-06-04 | 武汉华星光电技术有限公司 | Display panel and crack detection method for display panel |
| CN109559668B (en) * | 2019-01-28 | 2022-04-29 | 京东方科技集团股份有限公司 | Display panel, detection method thereof and display device |
| CN109559668A (en) * | 2019-01-28 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of display panel and its detection method, display device |
| CN109697947A (en) * | 2019-02-26 | 2019-04-30 | 昆山国显光电有限公司 | The method of display device and crackle sensing |
| CN109638023A (en) * | 2019-02-28 | 2019-04-16 | 昆山国显光电有限公司 | A kind of array substrate, display panel and film layer crack detecting method |
| US11062630B2 (en) | 2019-03-28 | 2021-07-13 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel |
| CN109872634A (en) * | 2019-03-28 | 2019-06-11 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel |
| CN110211493A (en) * | 2019-04-12 | 2019-09-06 | 上海天马微电子有限公司 | Flexible display panels and flexible display apparatus |
| WO2020215176A1 (en) * | 2019-04-22 | 2020-10-29 | 深圳市柔宇科技有限公司 | Display panel and display device |
| CN110164344A (en) * | 2019-06-06 | 2019-08-23 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110164344B (en) * | 2019-06-06 | 2022-09-16 | 京东方科技集团股份有限公司 | Display panel and display device |
| WO2021068402A1 (en) * | 2019-10-08 | 2021-04-15 | 武汉华星光电半导体显示技术有限公司 | Crack detection circuit and display panel |
| CN110634411A (en) * | 2019-11-07 | 2019-12-31 | 京东方科技集团股份有限公司 | Display module and packaging detection method thereof |
| CN110838273B (en) * | 2019-11-21 | 2022-06-10 | 武汉天马微电子有限公司 | Crack detection method for display panel |
| CN110838273A (en) * | 2019-11-21 | 2020-02-25 | 武汉天马微电子有限公司 | Crack detection method for display panel |
| CN110853558A (en) * | 2019-12-19 | 2020-02-28 | 京东方科技集团股份有限公司 | Flexible display screen, detection method thereof and display device |
| CN111044578A (en) * | 2019-12-31 | 2020-04-21 | 厦门天马微电子有限公司 | Display panel, crack position positioning method thereof and display device |
| CN111508401A (en) * | 2020-06-12 | 2020-08-07 | 京东方科技集团股份有限公司 | Crack detection circuit, display panel and crack detection method |
| CN115561571A (en) * | 2022-01-13 | 2023-01-03 | 深圳荣耀智能机器有限公司 | Crack detection circuit, crack detection system, integrated circuit and electronic equipment |
| CN115561571B (en) * | 2022-01-13 | 2023-12-08 | 深圳荣耀智能机器有限公司 | Crack detection circuit, system, integrated circuit and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208111041U (en) | display panel and display device | |
| CN110503907A (en) | Display panel and its crack detecting method, display device | |
| US8115202B2 (en) | Thin film transistor array substrate and electronic ink display device | |
| US8063865B2 (en) | Liquid crystal display comprising electrostatic protection circuit and test circuit | |
| CN108922462A (en) | Display device and detection method for display device | |
| CN106875879A (en) | A kind of display panel, electronic equipment and method of testing | |
| CN108874194A (en) | Embedded touch display device and its test method and production method | |
| CN102566167B (en) | Array substrate | |
| CN104217672A (en) | Organic light emitting display panel | |
| CN108986728A (en) | Show equipment | |
| CN109523943A (en) | Display panel and display device | |
| CN106371656B (en) | Display device | |
| CN104517563B (en) | Display device | |
| CN104037193A (en) | DISPLAY, manufacturing method thereof, DISPLAY DRIVE METHOD, AND ELECTRONIC APPARATUS | |
| CN103309065B (en) | The measurement circuit of display panel and method of testing thereof | |
| CN109741684B (en) | Circuit substrate, display panel and manufacturing method | |
| CN109859672A (en) | The driving method of display panel assembly, display device and display panel assembly | |
| CN107479759A (en) | A kind of pressure touch display panel, detection method and display device | |
| CN104616612B (en) | Displayer, its test suite and its defect test method | |
| CN110264931A (en) | The detection method and detection device of the threshold voltage shift of transistor in pixel circuit | |
| WO2021195974A1 (en) | Display substrate and testing method therefor | |
| CN114026489A (en) | Display substrate and display device | |
| CN208477888U (en) | Display panel and display device | |
| CN205334925U (en) | Display panel and display device | |
| CN107004386B (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |