CN109817131A - Crack detection circuit, method and display device - Google Patents
Crack detection circuit, method and display device Download PDFInfo
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Abstract
本公开是关于一种裂纹检测电路、方法和显示装置，所述裂纹检测电路包括：第一裂纹检测线、第一检测信号模块和检测模块，第一裂纹检测线设于基板的弯折部；第一检测信号模块，连接于第一裂纹检测线的第一端，用于响应检测控制信号而将第一检测信号传输至第一裂纹检测线；检测模块连接于所述第一裂纹检测线的第二端，用于接收所述第一检测信号。当基板弯折部产生裂纹时会导致第一裂纹检测线发生形变或者断裂，第一检测信号通过第一裂纹检测线后会发生变化，检测模块接收第一检测信号，通过第一检测信号判断基板弯折部是否具有裂纹，实现了对裂纹的检测，避免了基板弯折部的裂纹影响显示效果，提升了显示品质。
The present disclosure relates to a crack detection circuit, a method and a display device. The crack detection circuit includes: a first crack detection line, a first detection signal module and a detection module, and the first crack detection line is arranged on a bent portion of a substrate; The first detection signal module is connected to the first end of the first crack detection line, and is used for transmitting the first detection signal to the first crack detection line in response to the detection control signal; the detection module is connected to the first crack detection line. The second end is used for receiving the first detection signal. When a crack occurs in the bent portion of the substrate, the first crack detection line will be deformed or broken, and the first detection signal will change after passing through the first crack detection line. The detection module receives the first detection signal, and judges the substrate through the first detection signal. Whether there is a crack in the bending part realizes the detection of the crack, avoids the crack in the bending part of the substrate from affecting the display effect, and improves the display quality.
Description
Technical field
This disclosure relates to field of display technology, in particular to a kind of crack detection circuit, method and display device.
Background technique
With the development of technology and progress, flexible display apparatus using more and more extensive, in flexible display apparatus, base
Plate includes viewing area and rim area, and rim area is provided with the bending part for connecting driving IC, when being bent to bending part,
There is the risk cracked in bending part.If there are crackles to impact to the leakproofness of display device for display device frame,
Cause the granule foreigns such as water or dust to enter display device, influences the display effect of display device.Therefore a kind of crackle is needed
Detection device detects the frame of display device.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The disclosure is designed to provide, and then overcomes the limitation and defect due to the relevant technologies at least to a certain extent
Caused by one or more problem.
According to the disclosure in a first aspect, providing a kind of crack detection circuit, the crack detection circuit includes:
First crack detection line, set on the bending part of substrate；
First detection signal module is connected to the first end of the first crack detection line, for response detection control signal
First detection signal is transmitted to the first crack detection line；
Detection module is connected to the second end of the first crack detection line, for receiving the first detection signal.
According to an embodiment of the disclosure, the detection module includes:
Line hinders detection module, for detecting the resistance value of the first crack detection line according to first detection signal.
According to an embodiment of the disclosure, the first crack detection line turns round distribution in the bending part of the substrate.
According to an embodiment of the disclosure, the detection module includes:
Multi-stage shift register, the first detection signal are transmitted separately to multistage shifting by the first crack detection line
First clock signal terminal of every level-one shift register in bit register.
According to an embodiment of the disclosure, the crack detection circuit further include:
Second crack detection line；
Second detection signaling module, is connected to the first end of the second crack detection line, and the second detection signal passes through institute
State the second clock signal end that the second crack detection line is transmitted separately to every level-one shift register in multi-stage shift register.
According to an embodiment of the disclosure, the first crack detection line turns round distribution in the bending part of the substrate；
The line resistance of the second crack detection line is identical with the resistance of the line of the first crack detection line.
According to the second aspect of the disclosure, a kind of crack detecting method is provided, is examined for crackle provided by the disclosure
Slowdown monitoring circuit, the crack detecting method include:
Signal is controlled according to the first detection, first detection signal is transmitted to the first crack detection line；
The first detection signal is received, and judges whether substrate bending part has crackle.
According to an embodiment of the disclosure, when the detection module includes line resistance detection module, the judgement substrate
Whether bending part has crackle, comprising:
The first detection signal based on the received obtains the resistance value of the first crack detection line；
The resistance value and standard resistance value for comparing the first crack detection line, when the resistance value and standard of the first crack detection line hinder
Value is consistent, then substrate bending part flawless, when the resistance value and standard resistance value of the first crack detection line are inconsistent, then substrate bending part
There are crackles；
Wherein, the standard resistance value is the expection resistance value of the first crack detection line.
According to an embodiment of the disclosure, when the detection module includes multi-stage shift register, the judgement base
Whether plate bending part has crackle, comprising:
First detection signal is received, the first detection picture is obtained；
Compare the first detection picture and standard picture, when the first detection picture is consistent with standard picture, then base
Plate bending part flawless, when the first detection picture and standard picture are inconsistent, then there are crackles for substrate bending part；
Wherein, standard picture is the picture of the expected display of display device under the first detection signal.
According to the third aspect of the disclosure, a kind of display device, including crack detection circuit provided by the disclosure are provided.
The disclosure provides a kind of crack detection circuit, by the way that the first crack detection line is arranged in substrate bending part, works as substrate
Will lead to the first crack detection line when bending part cracks, deformation occurs or fracture, and first detection signal passes through the first crackle
It can change after detection line, detection module receives first detection signal, judges that substrate bending part is by first detection signal
It is no that there is crackle, the detection to crackle is realized, the cracks influence display effect of substrate bending part is avoided, improves display product
Matter.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the schematic diagram for the first crack detection circuit that disclosure exemplary embodiment embodiment provides.
Fig. 2 is a kind of schematic diagram for substrate that disclosure exemplary embodiment embodiment provides.
Fig. 3 is the schematic diagram for second of crack detection circuit that disclosure exemplary embodiment embodiment provides.
Fig. 4 is the schematic diagram for the third crack detection circuit that disclosure exemplary embodiment embodiment provides.
Fig. 5 is the schematic diagram for the 4th kind of crack detection circuit that disclosure exemplary embodiment embodiment provides.
Fig. 6 is the schematic diagram for one kind the first crack detection line that disclosure exemplary embodiment embodiment provides.
Fig. 7 is the schematic diagram for one kind the second crack detection line that disclosure exemplary embodiment embodiment provides.
Fig. 8 is a kind of scanning signal schematic diagram that disclosure exemplary embodiment embodiment provides.
Fig. 9 is the flow chart for the first crack detecting method that disclosure exemplary embodiment embodiment provides.
Figure 10 is the flow chart for second of crack detecting method that disclosure exemplary embodiment embodiment provides.
Figure 11 is the flow chart for the third crack detecting method that disclosure exemplary embodiment embodiment provides.
Figure 12 is the shift register signal waveform diagram that disclosure exemplary embodiment embodiment provides.
In figure: 100, first detection signal module；200, the first crack detection line；300, detection module；310, line resistance inspection
Survey module；320, shift register；400, the second detection signaling module；500, the second crack detection line；700, substrate；710, curved
Folding part；800, pixel circuit.
CS1, the first detection control signal；CS2, the second detection control signal；CA, the first clock signal；CB, second clock
Signal；CA1, first detection signal；CB1, the second detection control signal；STV, input signal.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical attached drawing in figure
Label indicates same or similar structure, thus the detailed description that will omit them.
Although the term of relativity, such as "upper" "lower" is used to describe a component of icon for another in this specification
The relativeness of one component, but these terms are in this manual merely for convenient, for example, with reference to the accompanying drawings described in show
The direction of example.It is appreciated that, if making it turn upside down the device overturning of icon, the component described in "upper" will
As the component in "lower".When certain structure is at other structures "upper", it is possible to refer to that certain structural integrity is formed in other structures
On, or refer to that certain structure is " direct " and be arranged in other structures, or refer to that certain structure is arranged by the way that another structure is " indirect " in other knots
On structure.
Term "one", " one ", "the", " described " and "at least one" be to indicate that there are one or more elements/groups
At part/etc.；Term " comprising " and " having " is to indicate the open meaning being included and refer in addition to listing
Element/component part/also may be present except waiting other element/component part/etc.；The only conduct such as term " first ", " second "
Label uses, and is not the quantity limitation to its object.
A kind of crack detection circuit is provided firstly in this example embodiment, as shown in Figure 1, the crack detection circuit
It include: the first crack detection line 200, first detection signal module 100 and detection module 300；First crack detection line 200 is set to
The bending part 710 of substrate 700；First detection signal module 100 is connected to the first end of the first crack detection line 200, for ringing
It answers the first detection control signal CS1 and first detection signal CA1 is transmitted to the first crack detection line 200；Detection module 300 connects
It is connected to the second end of the first crack detection line 200, for receiving the first detection signal CA1.
The crack detection circuit that the embodiment of the present disclosure provides, by the way that the first crack detection is arranged in 700 bending part 710 of substrate
Line 200, will lead to the first crack detection line 200 when 700 bending part 710 of substrate cracks, deformation occurs or fracture, the
For one detection signal CA1 by that can change after the first crack detection line 200, detection module 300 receives first detection signal
CA1 judges whether 700 bending part 710 of substrate has crackle by first detection signal CA1, realizes the detection to crackle, keep away
The cracks influence display effect for having exempted from 700 bending part 710 of substrate, improves display quality.
Each component part of the crack detection circuit provided the disclosure is described in detail below:
It include viewing area and non-display area in display device, non-display area is also generally referred to as frame, in practical applications,
With the development of technology and progress, people are higher and higher to the requirement for accounting for screen ratio of display device, account for screen ratio needs to improve
Reduction frame as far as possible, in order to reduce the back side that frame can will drive the circuit devcies such as IC to be set to display panel, such as Fig. 2 institute
Show, the circuit devcie for being located at the display panel back side is connected by the bending part 710 of substrate 700.In practical applications, bending part
710, usually there are the risk of crackle, influence display effect.
Substrate 700 described in the embodiment of the present disclosure may include flexible substrate and the functional layer in flexible substrate,
700 bending part 710 of substrate may be cracked in the functional layer that bending is provided in flexible substrate, be split to detect this part
Line, the first crack detection line 200 can be attached at the surface of the functional layer, and when bending, when the functional layer is in bending, is produced from surface
Raw crackle, can stretch the first crack detection line 200 attached to the surface, and the first crack detection line 200 is caused to generate deformation, than
Such as, area of section is changed or is broken after stretching.
First detection signal module 100 may include sensed signal sources and first switch unit, and sensed signal sources are for mentioning
For first detection signal CA1, it can be and provided by sequence controller, be also possible to be provided by individual signal source, the disclosure
Embodiment is not specifically limited in this embodiment.First detection signal CA1 can be clock signal.The input terminal of first switch unit connects
Sensed signal sources, output end connecting detection module 300, control terminal connection the first detection control signal CS1, first switch unit are rung
It answers the first detection control signal CS1 and is connected, first detection signal CA1 is transmitted to detection module 300 from sensed signal sources.
In disclosure one kind it is possible that in embodiment, as shown in figure 3, the detection module 300 includes: line resistance detection
Module 310, line resistance detection module 310 are used to detect the resistance of the first crack detection line 200 according to first detection signal CA1
Value.First crack detection line 200 is attached at the surface of 700 bending part 710 of substrate, cracks when bending part 710 is in bending,
First crack detection line 200 generates deformation, and resistance value can change.The resistance value that detection module 310 is hindered by line, when first
When the resistance value of crack detection line 200 and its inconsistent original resistance value, there are crackles for 700 bending part 710 of substrate, when the first crackle is examined
When the resistance value of survey line 200 and its inconsistent original resistance value, crackle is not present in 700 bending part 710 of substrate.Original resistance value refers to first
Resistance value of the crack detection line 200 when being not stretched.
Wherein, line resistance detection module 310 can pass through the first crack detection line by detection first detection signal CA1
What is occurred after 200 changes to detect the variation of the first crack detection signal wire resistance value.It should be noted that when the first crackle
When the difference of the resistance value of detection line 200 and its original resistance value is in an allowed band, it can be determined that the first crack detection line 200
Resistance value is consistent with its original resistance value.For example, when the resistance value of the first crack detection line 200 detected and the deviation of its original resistance value
When less than or equal to 0.5%, it is possible to determine that the resistance value of the first crack detection line 200 is consistent with its original resistance value, that is to say substrate 700
Crackle is not present in bending part 710；When the resistance value of the first crack detection line 200 and the deviation of its original resistance value that detect are greater than
When 0.5%, it is possible to determine that the resistance value of the first crack detection line 200 and its original resistance value are inconsistent, that is to say 700 bending part of substrate
710 there are crackles.
In the related technology, by detecting crackle around setting wire in panel non-display area, and it will test signal feedback
Onto pixel signal line, picture is shown by the detection signal drives, is deposited when abnormal when picture is shown, judge that frame exists and split
Line.Or determine whether crackle by way of detection tinsel resistance, be surrounded on the wire of non-display area due to length compared with
Long, the resistance of its own is larger, causes the variation of the resistance as caused by crackle to be compared with wire itself resistance value smaller, it is difficult to
Detection.The precision pair of the crack detection circuit detection crackle of detection detection crackle and disclosure offer is provided by line in the related technology
Than as shown in table 1.
Table 1
It can be obtained by table 1, in the embodiment of the present disclosure, the first crack detection line 200 line resistive caused by by technological fluctuation
About 0.58%~0.67% (50~60 Ω).And in the related technology, wire line resistive caused by by technological fluctuation is about
4.22%~8.01%.(1660~3150 Ω).If generate micro-crack, the influence to line resistance is assumed to be 100 Ω, uses this public affairs
When the crack detection circuit progress resistance test of embodiment offer is provided, existing micro-crack can be successfully determined.And the relevant technologies
In, the resistance fluctuation of wire itself is just very big, and lesser resistance variations caused by micro-crack can be judged as technique itself
Caused by fluctuation, to can not effectively detect micro-crack there is a phenomenon where judging by accident to sentence.
Further, in order to when cracking, the first crack detection line 200 can deformation occurs in multiple regions or
The number of fracture, as shown in figure Fig. 5 and Fig. 6, the first crack detection line 200 is turned round in the bending part 710 of the substrate 700
Distribution.First crack detection line 200 of revolution distribution allows crackle and the first crack detection line 200 to have multiple intersection points,
The first crack detection line 200 generates deformation in multiple point of intersection when cracking, so that the resistance value of the first crack detection line 200 becomes
Change it is larger, convenient for detection.
In disclosure another kind it is possible that in embodiment, as shown in figure 4, the detection module 300 includes multistage moves
Bit register 320, the first detection signal CA1 are transmitted separately to stages shift by the first crack detection line 200 and post
First clock signal terminal of every level-one shift register 320 in storage 320.
Shift register 320 receives scanning signal for exporting scanning signal, the pixel circuit 800 of display drive apparatus,
Progressive scan is to show picture.When detecting, first detection signal CA1 is transmitted to displacement by the first crack detection line 200 and posts
First clock signal terminal of storage 320.First crack detection line 200 is attached at the surface of 700 bending part 710 of substrate, works as bending
Portion 710 is cracked in bending, and the first crack detection line 200 generates deformation, by the first inspection of the first crack detection line 200
Variation can be generated by surveying signal CA1, and then influence the scanning signal that shift register 320 exports, and cause display abnormal.
Further, the crack detection circuit further includes the second crack detection line 500 and the second detection signaling module
400, the second detection signaling module 400 is connected to the first end of the second crack detection line 500, and the second detection signal CB1 is logical
It crosses the second crack detection line 500 and is transmitted separately to second of every level-one shift register 320 in multi-stage shift register 320
Clock signal terminal.Pass through second by the second the second detection of output of detection signaling module 400 signal CB1, the second detection signal CB1
Crack detection line 500 is transmitted to the second clock signal end of shift register 320.
In order to which when cracking, the first crack detection line 200 can deformation occurs or time of fracture in multiple regions
Number, as shown in fig. 6, the first crack detection line 200 turns round distribution in the bending part 710 of the substrate 700.Revolution distribution
First crack detection line 200 allows crackle and the first crack detection line 200 to have multiple intersection points, and when cracking, first splits
Line detection line 200 generates deformation in multiple point of intersection, so that the first detection signal CA1 by the first crack detection line 200 becomes
Change it is larger, and then make show picture generate large change convenient for detection.Wherein in order to guarantee first detection signal CA1 and second inspection
The consistency for surveying signal CB1, as shown in fig. 7, the distribution mode of the second crack detection line 500 can be with first crackle
Detection line 200 is identical.Certainly the distribution mode of the second crack detection line 500 can also be with the first crack detection in practical applications
The distribution mode of line 200 is different, and the embodiment of the present disclosure is not specifically limited in this embodiment.
In practical applications, the pixel circuit 800 of display device receives the scanning signal of gate driving circuit output, line by line
It is scanned.Shift register 320 is defeated under the control of the first clock signal CA, second clock signal CB and input signal STV
Scanning signal out.Cascade multi-stage shift register 320 exports scanning signal line by line in order, can be in the side of one-row pixels
Shift register 320 is set, shift register 320 can also be respectively provided in the two sides of one-row pixels.When the side of one-row pixels
When shift register 320 is arranged, the first crack detection line 200 of bent area can be one, be connected to shift register 320
First clock signal terminal, the second crack detection line 500 can be one, be connected to the second clock signal of shift register 320
End；When one-row pixels two sides are provided with shift register 320, the first crack detection line 200 of bent area can be two
Item is connected to the first clock signal terminal of two sides shift register 320, and the second crack detection line 500 can be two, point
It is not connected to the second clock signal end of two sides shift register 320.
Wherein, the second detection signaling module 400 may include the second detection source signal CB1 and second switch unit, detection
Signal source can be and be provided by sequence controller, is also possible to by individual signal source for providing the second detection signal CB1
It provides, the embodiment of the present disclosure is not specifically limited in this embodiment.Second detection signal CB1 can be clock signal.Second switch unit
Input terminal connecting detection signal source, output end connecting detection module 300, control terminal connection the second detection control signal CS2, the
The detection of two switch unit responds second controls signal CS2 and is connected, and the second detection signal CB1 is transmitted to inspection from sensed signal sources
Survey module 300.
The crack detection circuit that the embodiment of the present disclosure provides can also include third switch unit and the 4th switch unit, and the
Three switch units are set between 320 first clock signal terminal of the first source clock signal CA and shift register, the 4th switch unit
It is set to the second clock source signal CB and second clock signal end, third switch unit and the detection of the 4th switch unit responds first
It controls signal CS1 and turns off, and then enter detection pattern.
Wherein, input signal STV, the first clock signal CA and second clock signal CB are as shown in figure 12, when detection, pass through
The detection of first detection signal CA1 and second signal CB1 replaces the first clock signal CA and second clock signal CB, and crackle is not present
With signal that there are in the case of two kinds of crackle, shift register 320 is exported as shown in figure 8, curve S is standard curve, S1, S2 and
S3 is the scanning signal of shift register output there are when crackle.It can be obtained from figure, crackle shift register 320 is defeated if it exists
Signal changes out, and it is abnormal that display device will appear display.
It should be noted that switch unit described in the embodiment of the present disclosure can be transistor, such as metal oxide
Transistor or thin film transistor (TFT) etc..The first end of transistor is source electrode, and second end is drain electrode, and control terminal is grid；Or the
One end is drain electrode, and second end is source electrode.It can be N-type transistor or P-type transistor, the embodiment of the present disclosure is not done this specifically
It limits.
Multiple cascade shift registers 320 connect the first source clock signal CA, second signal line by the first signal wire
The source second clock signal CB is connected, input signal STV line connects the source input signal STV.First signal wire, second signal line and defeated
Enter the side that signal STV line is distributed in the first crack detection line 200, the first signal wire, second signal line and input signal STV line
Between filled with insulating dielectric materials can be in insulating dielectric materials when the first crack detection line 200 is connected with the first signal wire
Upper setting connecting hole connects the first crack detection line 200 and the first signal wire by wire jumper.
Disclosure example embodiment also provides a kind of crack detecting method, for the electricity of crack detection provided by the disclosure
Road, as shown in figure 9, the crack detecting method includes:
Step S910 controls signal CS1 according to the first detection, first detection signal CA1 is transmitted to the first crack detection
Line 200；
Step S920 receives the first detection signal CA1, and judges whether 700 bending part 710 of substrate has crackle.
The crack detecting method that the embodiment of the present disclosure provides, by the way that the first crack detection is arranged in 700 bending part 710 of substrate
Line 200, will lead to the first crack detection line 200 when 700 bending part 710 of substrate cracks, deformation occurs or fracture, the
For one detection signal CA1 by that can change after the first crack detection line 200, detection module 300 receives first detection signal
CA1 judges whether 700 bending part 710 of substrate has crackle by first detection signal CA1, realizes the detection to crackle, keep away
The cracks influence display effect for having exempted from 700 bending part 710 of substrate, improves display quality.
In step S910, signal CS1 is controlled according to the first detection, first detection signal CA1 is transmitted to the first crackle
Detection line 200.
First crack detection line 200 is activated in detection pattern, the source first detection signal CA1 and the first crack detection line
First switch unit, first switch unit response the first detection control signal CS1 conducting, by the first detection can be set on 200
Signal CA1 is transmitted to the first crack detection line 200.Or it can be the source first detection signal CA1 and receive the first detection control letter
Number CS1 exports first detection signal CA1 to the first crack detection line 200.
It is as shown in Figure 10, described to sentence when the detection module 300 includes line resistance detection module 310 in step S920
Whether disconnected 700 bending part 710 of substrate has crackle, comprising:
Step S921, the first detection signal CA1, obtains the resistance of the first crack detection line 200 based on the received
Value；
Wherein, first detection signal CA1 passes through the first crack detection line 200, rear to can detecte by line resistance detection device
The resistance value of first crack detection line 200 out.
Step S922, the resistance value and standard resistance value of the first crack detection line 200, when the first crack detection line
200 resistance value is consistent with standard resistance value, then 700 bending part of substrate, 710 flawless, when the first crack detection line 200 resistance value and
Standard resistance value is inconsistent, then there are crackles for 700 bending part 710 of substrate；
Wherein, the standard resistance value is the expection resistance value of the first crack detection line 200.First crack detection line 200 attaches
In the surface of 700 bending part 710 of substrate, cracked when bending part 710 is in bending, the first crack detection line 200 generates shape
Become, resistance value can change.The resistance value that detection module 310 is hindered by line, when the resistance value of the first crack detection line 200 and its
When original resistance value is inconsistent, there are crackles for 700 bending part 710 of substrate, when the resistance value and its original resistance of the first crack detection line 200
When being worth inconsistent, crackle is not present in 700 bending part 710 of substrate.Original resistance value refers to that the first crack detection line 200 is being not stretched
When resistance value.Line, which hinders detection module 310, can pass through the first crack detection line 200 by detection first detection signal CA1
What is occurred later changes to detect the variation of the first crack detection signal wire resistance value
It should be noted that when the resistance value of the first crack detection line 200 and the difference of its original resistance value are in an allowed band
When interior, it can be determined that the resistance value of the first crack detection line 200 is consistent with its original resistance value.For example, when the first crackle detected
When the deviation of the resistance value of detection line 200 and its original resistance value is less than or equal to 0.5%, it is possible to determine that the first crack detection line 200
Resistance value is consistent with its original resistance value, and that is to say 700 bending part 710 of substrate, there is no crackles；When the first crack detection detected
When the deviation of the resistance value of line 200 and its original resistance value is greater than 0.5%, it is possible to determine that the resistance value of the first crack detection line 200 and its
Original resistance value is inconsistent, that is to say that there are crackles for 700 bending part 710 of substrate.
It is as shown in figure 11, described when the detection module 300 includes multi-stage shift register 320 in step S920
Judge whether 700 bending part 710 of substrate has crackle, comprising:
Step S923 receives first detection signal CA1, obtains the first detection picture；
First detection signal CA1 is transmitted to the first clock of shift register 320 after the first crack detection line 200
Signal end, shift register 320 export scanning signal, drive pixel circuit 800, so that display device shows picture.
Step S924, the first detection picture and standard picture, when the first detection picture and standard picture
Unanimously, then 700 bending part of substrate, 710 flawless, when the first detection picture and standard picture are inconsistent, then substrate 700 is curved
There are crackles for folding part 710；
Wherein, standard picture is the picture of the expected display of display device under the first detection signal CA1.Shift register
320 for exporting scanning signal, and the pixel circuit 800 of display drive apparatus receives scanning signal, progressively scans to show picture.
When detecting, first detection signal CA1 is transmitted to the first clock letter of shift register 320 by the first crack detection line 200
Number end.First crack detection line 200 is attached at the surface of 700 bending part 710 of substrate, generates and splits when bending part 710 is in bending
Line, the first crack detection line 200 generate deformation, can generate change by the first detection signal CA1 of the first crack detection line 200
Change, and then influence the scanning signal that shift register 320 exports, causes display abnormal, it is different with expected display picture.
It should be noted that although describing each step of method in the disclosure in the accompanying drawings with particular order,
This does not require that or implies must execute these steps in this particular order, or have to carry out step shown in whole
Just it is able to achieve desired result.Additional or alternative, it is convenient to omit multiple steps are merged into a step and held by certain steps
Row, and/or a step is decomposed into execution of multiple steps etc..
The embodiment of the present disclosure also provides a kind of display device, including the electricity of crack detection provided by the embodiment of the present disclosure
Road.The display device can also include the components such as sequence controller, display module and backlight module, because it is existing skill
Art, the embodiment of the present disclosure do not repeat again herein.Wherein, the display device for example may include mobile phone, tablet computer, TV
Any products or components having a display function such as machine, laptop, Digital Frame, navigator.
In addition, above-mentioned attached drawing is only the schematic theory of processing included by method according to an exemplary embodiment of the present invention
It is bright, rather than limit purpose.It can be readily appreciated that the time that above-mentioned processing shown in the drawings did not indicated or limited these processing is suitable
Sequence.In addition, be also easy to understand, these processing, which can be, for example either synchronously or asynchronously to be executed in multiple modules.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
His embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Adaptive change follow the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure or
Conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by claim
It points out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the attached claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128530.7A CN109817131A (en) | 2019-02-19 | 2019-02-19 | Crack detection circuit, method and display device |
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| CN114264700A (en) * | 2021-12-23 | 2022-04-01 | 东华大学 | Flexible gear crack monitoring device and method |
| CN114373411A (en) * | 2021-12-27 | 2022-04-19 | 长沙惠科光电有限公司 | Display panel, display device, electronic device, and crack detection method |
| CN118588022A (en) * | 2024-05-31 | 2024-09-03 | 京东方科技集团股份有限公司 | Display screen, crack detection method and display |
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