CN109187645A - The detection method of display panel and display panel - Google Patents
The detection method of display panel and display panel Download PDFInfo
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- CN109187645A CN109187645A CN201811115638.4A CN201811115638A CN109187645A CN 109187645 A CN109187645 A CN 109187645A CN 201811115638 A CN201811115638 A CN 201811115638A CN 109187645 A CN109187645 A CN 109187645A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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Abstract
The invention discloses the detection methods of a kind of display panel and display panel, belong to field of display technology.The display panel includes: underlay substrate；Edge detection line, edge detection line include at least one sub- edge line of the fringe region positioned at underlay substrate；Middle part detection line, middle part detection line include at least one son middle part line positioned at other regions of the underlay substrate in addition to fringe region, and in the middle part of at least one son in line, the both ends of any son middle part line are not attached to.The present invention passes through detection line in the middle part of other regions setting in underlay substrate in addition to fringe region, and other regions in display panel in addition to fringe region are detected by the middle part detection line and whether there is crackle, it whether there is crackle in the edge detection line detection fringe region in the region of matched edges again, more comprehensive inspection carried out to display panel.Solve the problems, such as that there are the display panels of crackle for possible missing inspection in the related technology.The display panel for avoiding missing inspection there are crackle is achieved the effect that.
Description
Technical field
The present invention relates to field of display technology, in particular to the crack detecting method of a kind of display base plate and display base plate.
Background technique
Due to various reasons small crackle may occur for display panel during manufacture.In order to avoid having occurred
Such cracked display panel comes into the market, it will usually be made whether the detection there are crackle to display panel.
In one of the relevant technologies display panel, edge is provided with the detection line that a circle has opening, and utilization is additional
Detection one end input signal of the signal from the opening, and determine according to whether the other end of the opening receives output signal
Crackle truncation on the whether shown panel of the detection line.
In the implementation of the present invention, inventor has found the relevant technologies the prior art has at least the following problems: above-mentioned display panel
Not comprehensive enough for the detection of crackle, there are the display panels of crackle for possible missing inspection.
Summary of the invention
The embodiment of the invention provides the detection methods of a kind of display panel and display panel, are able to solve in the related technology
Not comprehensive enough for the detection of display panel crackle, there is the display panel of crackle in possible missing inspection.The technical solution
It is as follows:
According to the first aspect of the invention, a kind of display panel is provided, the display panel includes:
Underlay substrate；
Edge detection line, the edge detection line include at least one sub- side of the fringe region positioned at the underlay substrate
Edge line, in at least one sub- edge line, the both ends of any sub- edge line are not attached to；
Middle part detection line, the middle part detection line include being located at other areas of the underlay substrate in addition to the fringe region
Domain at least one son middle part line, it is described at least one son middle part line in, it is any son middle part line both ends be not attached to.
Optionally, the display panel further includes the multiple luminescence units being arranged on the underlay substrate,
One end of any son middle part line is connect at least one luminescence unit in the multiple luminescence unit, described
The other end of any son middle part line is configured as input to electric signal, at least one described luminescence unit is configured as in the telecommunications
Starting when number not reaching described one end of any son middle part line.
Optionally, at least one described luminescence unit is connect with a data line,
One end of any son middle part line is connect with the data line.
Optionally, the other end of any son middle part line is connect with one end of any sub- edge line, described
The other end of any sub- edge line is configured as input to the electric signal.
Optionally, described one end of any sub- edge line passes through switch and at least one in the multiple luminescence unit
A luminescence unit connection, and the other end of described one end of any sub- edge line and any son middle part line connects
It connects.
Optionally, the switch is thin film transistor (TFT).
Optionally, the quantity of son middle part line is n, and sub- edge line described in n item is located at n of the underlay substrate
Different regions, n >=2.
Optionally, region of the underlay substrate in addition to the fringe region is equally divided into the n different regions.
According to the second aspect of the invention, a kind of detection method of display panel is provided, for showing described in first aspect
Show panel, which comprises
Any sub- edge line is detected with the presence or absence of fracture by the both ends of sub- edge line any in edge detection line；
Any son middle part line is detected with the presence or absence of fracture by the both ends of son any in the detection line of middle part middle part line.
Optionally, whether the both ends by son any in the detection line of middle part middle part line detect any son middle part line
There are fractures, comprising:
Measure the resistance at any son middle part line both ends；
If the resistance at any son middle part line both ends is infinitely great, it is determined that any son middle part line has fracture.
Optionally, the display panel further includes the multiple luminescence units being arranged on the underlay substrate, described any
One end of sub- middle part line is connect at least one luminescence unit in the multiple luminescence unit, at least one described luminescence unit
It is configured as the starting when the electric signal does not reach described one end of line in the middle part of any son
Any son middle part line is detected with the presence or absence of disconnected in the both ends by son any in the detection line of middle part middle part line
It splits, comprising:
To the other end input electrical signal of any son middle part line；
When the starting of at least one described luminescence unit, determine that any son middle part line has fracture.
Technical solution bring beneficial effect provided in an embodiment of the present invention includes at least:
By detection line in the middle part of other regions setting in underlay substrate in addition to fringe region, and detected by the middle part
Line detects other regions in display panel in addition to fringe region with the presence or absence of the edge detection in crackle, then matched edges region
Line, which detects, whether there is crackle in fringe region, carry out more comprehensive inspection to display panel.It solves in the related technology
Not comprehensive enough for the detection of display panel crackle, there is the display panel of crackle in possible missing inspection.Reach and has avoided leaking
There are the effects of the display panel of crackle for inspection.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of display panel during the present invention is implemented；
Fig. 2 is a kind of structural schematic diagram of display panel shown in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 8 is a kind of flow chart of the detection method of display panel provided in an embodiment of the present invention；
Fig. 9 is the flow chart of the detection method of another display panel provided in an embodiment of the present invention；
Figure 10 is a kind of current potential schematic diagram in embodiment illustrated in fig. 9；
Figure 11 is another current potential schematic diagram in embodiment illustrated in fig. 9；
Figure 12 is another current potential schematic diagram in embodiment illustrated in fig. 9；
Figure 13 is another current potential schematic diagram in embodiment illustrated in fig. 9.
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate idea of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Currently, some have flexible display panels flexible (such as Organic Light Emitting Diode (English: Organic Light-
Emitting Diode；Referred to as: OLED) display panel) fringe region usually can be the region for being bent, such as one
The screen of a little curved surface screen mobile phones, edge is usually curved state.Therefore, it is usually set in the fringe region in the related technology
Being equipped with detection line, (detection line is properly termed as panel crack detection (English: Panel Crack Detect；Referred to as: PCD) line).
Illustratively, as shown in Figure 1, the fringe region b of the display panel can be the edge of display panel to center extend it is specified away from
From region, except other regions of fringe region b can be central region z.It is provided with detection line t in fringe region b, it should
Detection line t may include both ends d1 and d2, and detection line t can be judged by this both ends with the presence or absence of disconnecting, if detection line t is deposited
It disconnects, then can determining the fringe region, there are crackles.Wherein, judge that detection line t can have with the presence or absence of the mode disconnected
It is a variety of, for example an electric signal can be inputted to one end in the both ends of detection line t, and detect whether the other end receives the electricity
Signal shows detection line t there is no disconnecting, if not receiving the electric signal, shows that detection line t exists if having received
It disconnects.
But aforesaid way is difficult to comprehensively detect display panel.
Fig. 2 is a kind of structural schematic diagram of display panel shown in the embodiment of the present invention.The display panel 20 may include:
Underlay substrate 21.
Edge detection line 22, edge detection line 22 include at least one sub- edge of the fringe region b positioned at underlay substrate
Line 221, at least one sub- edge line 221, the both ends (e1 and e2) of any sub- edge line 221 are not attached to.
Middle part detection line 23, middle part detection line 23 include being located at other region zs of the underlay substrate in addition to fringe region b extremely
Line 231 in the middle part of a few strip, at least one son middle part line 231, the both ends of any son middle part line 231 are not attached to (e3 and e4).
Optionally, middle part detection line 23 can with the source-drain electrode metal layer in display panel in a patterning processes shape
At, or can also individually underlay substrate (underlay substrate can by polyimides (English: Polyimide；Referred to as: PI) structure
At) on independently form.
Fig. 2 shows be the quantity of sub- edge line 221 and son middle part line 231 be 1 the case where, but not to sub- edge line
221 and the quantity of son middle part line 231 limited, the quantity of sub- edge line 221 and son middle part line 231 can also be other, such as
2,3,4 or 5 etc..In addition, sub- edge line 221 and son middle part line 231 may be the same or different.
In conclusion the embodiment of the present invention he provide display panel, by underlay substrate in addition to fringe region
Other region settings middle part detection line, and other regions in display panel in addition to fringe region are detected by the middle part detection line
With the presence or absence of whether there is crackle in the edge detection line detection fringe region in crackle, then matched edges region, to display surface
Plate has carried out more comprehensive inspection.Solves not comprehensive enough for the detection of display panel crackle in the related technology, possible leakage
There is the display panel of crackle in inspection.The display panel for avoiding missing inspection there are crackle is achieved the effect that.
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.The display panel is shown in Fig. 2
Some adjustment have been carried out on the basis of display panel.
Optionally, display panel 20 further includes the multiple luminescence units 24 being arranged on underlay substrate 21.It is multiple to shine
Unit 24 can be the unit in display panel 20 for being shown.
One end e3 of any son middle part line 231 is connect in multiple luminescence units 24 at least one luminescence unit 241.
The other end e4 of any son middle part line 231 is configured as input to electric signal, at least one luminescence unit 241 is configured
For the starting when electric signal does not reach one end e3 of line 231 in the middle part of any son.That is, with any son middle part line 231
The luminescence unit 241 of one end e3 connection can be used as indicator light, line 231 exists in the middle part of any son when disconnecting, the indicator light
It lights, is found convenient for testing staff.
In embodiments of the present invention, multiple luminescence units 24 on underlay substrate 21 can be arranged array in such a way that x row y is arranged
Cloth.With one end e3 of any son middle part line 231 quantity of luminescence unit connect and arrange position can there are many.It is exemplary
, it is any son middle part line 231 one end e3 can on underlay substrate 21 any multirow luminescence unit or any multiple row (such as
12) luminescence unit connects.
Optionally, one end e3 of any son middle part line 231 can be at least one luminescence unit on underlay substrate 21
Data line j connection, to control this at least one luminescence unit.
It should be noted that the positional relationship between data line j and multiple luminescence units 24 shown in Fig. 3 is only to show
Meaning property, data line j and multiple luminescence units 24 can be located at the same layer in display panel, can also be located at display panel
In different layers, the embodiment of the present invention is not limited.
Optionally, since OLED display panel Green luminescence unit is relatively easy to control, thus any son middle part line 231
One end e3 can be connected at least one green emitting unit on underlay substrate 21.
In display panel shown in Fig. 3, it can be detected in fringe region b by the edge detection line 22 in fringe region b
With the presence or absence of crackle, can also be detected by the middle part detection line 23 in central region z, which whether there is in central region z, splits
Line.That is fringe region b and central region z can be detected independently.But in display panel provided in an embodiment of the present invention, edge
Region b and central region z can also be detected simultaneously.
Fig. 4 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Wherein, any son middle part line
231 other end e4 is connect with one end e1 of any sub- edge line 221, and the other end e2 of any sub- edge line 221 is configured as
Input electrical signal.
Under such structure, disconnected as long as any sub- edge line 221 or any son middle part line 231 exist, from this
One end e3 of any son middle part line 231 can not be reached once the electric signal that the other end e2 of sub- edge line 221 is inputted, and then also can
Light at least one luminescence unit connecting with one end e3.I.e. when fringe region b or central region z is there are when crackle, i.e.,
It can be known by least one luminescence unit 241 being connect with one end e3 of line 231 in the middle part of son.So can achieve can be whole
Detect the effect that whether there is crackle in display panel fringe region b and central region z.
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Wherein, any sub- edge line
221 one end e1 is connect by switch s at least one luminescence unit 241 in multiple luminescence units 24, and any sub- edge
One end e1 of line 221 is connect with the other end e4 of any son middle part line 231.
In Fig. 5, when switch s open circuit, the equivalent circuit diagram of Fig. 5 can be similar with Fig. 4, can be with whole detection display surface
It whether there is crackle in the crackle and central region z of the fringe region b of plate.
When switch s closure, can by at least one luminescence unit 241 for connecting of one end e3 of line 231 in the middle part of son
Know in fringe region b with the presence or absence of crackle.Individually fringe region is detected.
Optionally, switch s is thin film transistor (TFT) (English: Thin Film Transistor；Referred to as: TFT).It can pass through
The grid g of switch s controls the open circuit and closure of switch s.It illustratively, should when inputting high-potential voltage to grid g
Switch s may be at open-circuit condition, and when inputting low-potential voltage to grid g, switch s may be at closed state.At this
In inventive embodiments, high-potential voltage is the voltage higher than low-potential voltage.
Fig. 6 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Wherein, line 231 in the middle part of son
Quantity is n (the case where Fig. 6 is n=2, but do not limit the quantity of n), and 231 lines are located at substrate base in the middle part of n strip
N different regions of plate, n >=2.Whether different zones can be detected respectively by being located at the son middle part 231 of different zones
There are crackles, just can so know the exact position of crackle, convenient for dividing for region cracked on display panel
Analysis, to improve the manufacturing technology of display panel.
Optionally, region (central region) z of underlay substrate 21 in addition to fringe region b is equally divided into n different regions.
Average out at n region can be convenient for analysis for crackle in display panel.
The meaning that other in Fig. 6 mark can refer to Fig. 5, and details are not described herein.
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Wherein, line 231 in the middle part of son
Quantity is 2, and the quantity of sub- edge line 221 is also 2,2 son middle part symmetry arrangements on underlay substrate 21 of line 231,2 sub- edges
The also symmetry arrangement on underlay substrate 21 of line 221.One end e3 of sub- middle part line can connect with the test suite 25 in display panel
It connects, which can connect with the data line of at least one luminescence unit in display panel.
Optionally, it in each display panel provided in an embodiment of the present invention, is split judging that any one region whether there is
When line, can also by the resistance at any one route being located in the region (such as sub- edge line, son middle part line) both ends come
Judgement.If the infinite of any one route, show that there are gaps for any one route, i.e., the region may deposit
In crackle；If the resistance of any one route is not infinity, showing any one route, there is no gap, the areas Ze Gai
Crackle may be not present in domain.So crack detection just can be carried out to display panel in the case where not starting display panel.
Optionally, the both ends of each route of the embodiment of the present invention (such as sub- edge line, son middle part line), can pass through cabling
The edge of underlay substrate is extended to, it so can be in order to testing these routes.
The display panel of body of the embodiment of the present invention can be large-sized flexible foldable display panel, such display
Panel may be by one or many foldings to be changed into a lesser display panel.Display provided in an embodiment of the present invention
Middle part detection line in panel is able to detect its central region with the presence or absence of crackle.
In conclusion the embodiment of the present invention he provide display panel, by underlay substrate in addition to fringe region
Other region settings middle part detection line, and other regions in display panel in addition to fringe region are detected by the middle part detection line
With the presence or absence of whether there is crackle in the edge detection line detection fringe region in crackle, then matched edges region, to display surface
Plate has carried out more comprehensive inspection.Solves not comprehensive enough for the detection of display panel crackle in the related technology, possible leakage
There is the display panel of crackle in inspection.The display panel for avoiding missing inspection there are crackle is achieved the effect that.
Fig. 8 is a kind of flow chart of the detection method of display panel provided in an embodiment of the present invention, and this method can be used for
Detect some display panels provided by the above embodiment.This method may include following several steps:
Step 801 detects any sub- edge line with the presence or absence of disconnected by the both ends of sub- edge line any in edge detection line
It splits.
When any sub- edge line has fracture, the region where showing any sub- edge line on a display panel is deposited
In crackle, which results in any sub- edge thread breakage.When any sub- edge line is there is no being broken, show that this is any
Sub- edge line on a display panel where region be not present crackle
The mode of this step detection edge detection line can refer to step 802.
Step 802 detects any son middle part line with the presence or absence of disconnected by the both ends of son any in the detection line of middle part middle part line
It splits.
In embodiments of the present invention, any son middle part line is detected with the presence or absence of fracture by the both ends of any son middle part line
Method may include following two:
First way.
Such mode may include following two steps:
1) resistance at any son middle part line both ends is measured.
The resistance at any son middle part line both ends can be measured by resistance meter.
2) if the resistance at any son middle part line both ends is infinitely great, it is determined that any son middle part line has fracture.
Such mode can detect in the case where not lighting display panel and whether there is crackle on display panel.
The second way.
Under such mode, the structure of display panel can be as shown in Figure 3.Wherein, display panel further includes being arranged in substrate
Multiple luminescence units 24 on substrate 21, at least one of one end e3 and multiple luminescence units 24 of any son middle part line 231
Luminescence unit 241 connects, which is configured as not reaching one end of line in the middle part of any son in electric signal
Shi Qidong.
Such mode may include following two steps:
1) to the other end input electrical signal of any son middle part line.
As shown in figure 3, can be to the other end e4 input electrical signal of any son middle part line 231.
2) when at least one luminescence unit starts, determine that any son middle part line has fracture.
When the starting of at least one luminescence unit, show that electric signal does not reach one end of any son middle part line, it at this time can be with
Determine that any son middle part line has fracture.
When any son middle part, line has fracture, the region where showing any son middle part line on a display panel is deposited
In crackle, which results in any son middle part thread breakage.When any son middle part line is there is no being broken, show that this is any
Sub- middle part line on a display panel where region crackle is not present.
In conclusion the detection method of the display panel of his offer of the embodiment of the present invention, passes through the middle part detection line and detects
Other regions in display panel in addition to fringe region are with the presence or absence of the edge detection line detection in crackle, then matched edges region
It whether there is crackle in fringe region, more comprehensive inspection carried out to display panel.It solves in the related technology for aobvious
Show that the detection of panel crackle is not comprehensive enough, possible missing inspection has the display panel of crackle.Reach and missing inspection is avoided to exist
The effect of the display panel of crackle.
Fig. 9 is the flow chart of the detection method of another display panel provided in an embodiment of the present invention, and this method can be used
In the above-mentioned display panel shown in Fig. 7 of detection.This method may include following several steps:
Step 901 opens switch between one end and at least one luminescence unit of any sub- edge line.
The switch can be thin film transistor (TFT), and the thin film transistor (TFT) can be controlled by the grid g of the thin film transistor (TFT)
Switch state.
Step 902 judges any sub- edge line with the presence or absence of fracture by the both ends of any sub- edge line.If this
There is fracture in one sub- edge line, execute step 903；If there is no fractures for any sub- edge line, step 904 and 905 is executed.
Judge that any sub- edge line can be with reference to above-described embodiment with the presence or absence of the method for fracture, details are not described herein.
Step 903, determining the fringe region of display panel, there are crackles.
If any sub- edge line has fracture, it can determine that there are crackles for the edge of display panel.
Optionally, in Fig. 7, if input low-potential voltage to the grid of switch s, switch s closure, to the grid g of switch s
When inputting high-potential voltage, switch s open circuit, and the other end e2 input of sub- edge line 221 is high level, then in this step
In, the current potential of each node can be as shown in Figure 10 in display panel.As can be seen that when the grid g of switch s is by low-potential voltage
When becoming high-potential voltage when (i.e. switch s is by being closed into open circuit), (e3 can be equivalent to sub- side to one end e3 of son middle part line at this time
One end e1 of edge line) low level is also become from high level, i.e., the electric signal of sub- 221 other end e2 of edge line input is in switch open
Afterwards, one end e1 that can not reach the sub- edge line 221 shows that the sub- edge line 221 has fracture.
If step 904, any sub- edge line there is no fracture, determine that crackle is not present in the fringe region of display panel.
Optionally, in Fig. 7, if input low-potential voltage to the grid of switch s, switch s closure, to the grid g of switch s
When inputting high-potential voltage, switch s open circuit, and the other end e2 input of sub- edge line 221 is high level, then in this step
In, the current potential of each node can be as shown in figure 11 in display panel.As can be seen that when the grid g of switch s is low-potential voltage
When (switch s closure) when, son middle part line one end e3 (one end e1 that e3 can be equivalent to sub- edge line at this time) be high level,
The electric signal of i.e. sub- 221 other end e2 of edge line input has reached one end e1 of the sub- edge line 221, shows the sub- edge line
221 are not present fracture.
Step 905 makes switch open between one end and at least one luminescence unit of any sub- edge line.Execute step
906。
If there is no fractures for any sub- edge line, one end and at least one list that shines of any sub- edge line can be made
Switch open between member.
Step 906 judges any son by the other end of any sub- edge and one end of any son middle part line
Middle part line is with the presence or absence of fracture.If any son middle part line has fracture, step 907 is executed；If any son middle part line is not deposited
It is being broken, is executing step 908.
Judgment method can refer to above-described embodiment, and details are not described herein.
In Fig. 7, if input low-potential voltage to the grid of switch s, switch s closure inputs high to the grid g of switch s
When potential voltage, switch s open circuit, and the other end e2 input of sub- edge line 221 is high level, then in this step, display
A kind of current potential situation of each node is shown in Fig.12 in panel.As can be seen that when the grid g of switch s is high potential electricity
When pressure when (switch s open circuit), one end e3 of son middle part line is low level, i.e., the telecommunications of sub- 221 other end e2 of edge line input
One end e3 of line 231 then shows that line 231 is deposited in the middle part of the son since sub- edge line 221 is there is no fracture number not up in the middle part of the son
It is being broken.
Another current potential situation can be as shown in figure 13, it can be seen that when the grid g of switch s is high-potential voltage (
Switch s open circuit) when, one end e3 of son middle part line is high level, i.e., the electric signal of sub- 221 other end e2 of edge line input reaches
One end e3 of line 231 in the middle part of the son shows that there is no fractures for line 231 in the middle part of the son.
Step 907, determining the central region of display panel, there are crackles.
When any son middle part there is fracture in line, can determine where any son middle part line there are crackles in region, if
There is fracture in the son middle part line in some or some regions in the multiple regions on underlay substrate, then can determine that this is a little
There are crackles in region where the line of middle part.
Step 908 determines that crackle is not present in the central region of display panel.
If there is no fractures for any son middle part line, the area where any son middle part line of display panel can be determined
Crackle is not present in domain.
In conclusion the detection method of the display panel of his offer of the embodiment of the present invention, passes through the middle part detection line and detects
Other regions in display panel in addition to fringe region are with the presence or absence of the edge detection line detection in crackle, then matched edges region
It whether there is crackle in fringe region, more comprehensive inspection carried out to display panel.It solves in the related technology for aobvious
Show that the detection of panel crackle is not comprehensive enough, possible missing inspection has the display panel of crackle.Reach and missing inspection is avoided to exist
The effect of the display panel of crackle.
It should be pointed out that in the accompanying drawings, for the size that clearly may be exaggerated layer and region of diagram.And it can be with
Understand, when element or layer be referred in another element or layer "upper", it can be directly in other elements, or may exist
Intermediate layer.Additionally, it is appreciated that it can be directly at other when element or layer be referred in another element or layer "lower"
Under element, or there may be the layer of more than one centre or elements.In addition, it is to be appreciated that when layer or element are referred to as
Two layers or two elements " between " when, the layer that it can be only between two layers or two elements, or there may also be one
Above middle layer or element.Similar reference marker indicates similar element in the whole text.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely exemplary embodiment of the present invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes:
Underlay substrate；
Edge detection line, the edge detection line include at least one sub- edge of the fringe region positioned at the underlay substrate
Line, in at least one sub- edge line, the both ends of any sub- edge line are not attached to；
Middle part detection line, the middle part detection line include being located at other regions of the underlay substrate in addition to the fringe region
At least one son middle part line, it is described at least one son middle part line in, it is any son middle part line both ends be not attached to.
2. display panel according to claim 1, which is characterized in that the display panel further includes being arranged in the substrate
Multiple luminescence units on substrate,
One end of any son middle part line is connect at least one luminescence unit in the multiple luminescence unit, described any
The other end of sub- middle part line is configured as input to electric signal, at least one described luminescence unit be configured as the electric signal not
Starting when reaching described one end of any son middle part line.
3. display panel according to claim 2, which is characterized in that the other end of any son middle part line and institute
One end connection of any sub- edge line is stated, the other end of any sub- edge line is configured as input to the electric signal.
4. display panel according to claim 2, which is characterized in that at least one described luminescence unit and a data line
Connection,
One end of any son middle part line is connect with the data line.
5. display panel according to claim 3, which is characterized in that described one end of any sub- edge line is by opening
Pass is connect at least one luminescence unit in the multiple luminescence unit, and described one end of any sub- edge line and institute
State the other end connection of any son middle part line.
6. display panel according to claim 5, which is characterized in that the switch is thin film transistor (TFT).
7. display panel according to claim 1, which is characterized in that the quantity of son middle part line is n, son described in n item
Middle part line is located at n different regions of the underlay substrate, n >=2.
8. a kind of detection method of display panel, which is characterized in that for any display panel of claim 1 to 7, institute
The method of stating includes:
Any sub- edge line is detected with the presence or absence of fracture by the both ends of sub- edge line any in edge detection line；
Any son middle part line is detected with the presence or absence of fracture by the both ends of son any in the detection line of middle part middle part line.
9. according to the method described in claim 8, it is characterized in that, described pass through the two of son any in the detection line of middle part middle part line
Detection any son middle part line in end is with the presence or absence of fracture, comprising:
Measure the resistance at any son middle part line both ends；
If the resistance at any son middle part line both ends is infinitely great, it is determined that any son middle part line has fracture.
10. according to the method described in claim 8, it is characterized in that, the display panel further includes being arranged in the substrate base
Multiple luminescence units on plate, at least one of one end of any son middle part line and the multiple luminescence unit shine single
Member connection, at least one described luminescence unit are configured as not reaching described one of line in the middle part of any son in the electric signal
Start when end
Any son middle part line is detected with the presence or absence of fracture, packet in the both ends by son any in the detection line of middle part middle part line
It includes:
To the other end input electrical signal of any son middle part line；
When the starting of at least one described luminescence unit, determine that any son middle part line has fracture.
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| CN201811115638.4A CN109187645B (en) | 2018-09-25 | 2018-09-25 | Display panel and detection method of display panel |
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