CN107656169A - The detection method of display panel, display device and display panel - Google Patents

The detection method of display panel, display device and display panel Download PDF

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Publication number
CN107656169A
CN107656169A CN201711064769.XA CN201711064769A CN107656169A CN 107656169 A CN107656169 A CN 107656169A CN 201711064769 A CN201711064769 A CN 201711064769A CN 107656169 A CN107656169 A CN 107656169A
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China
Prior art keywords
calibrating terminal
switch
signal
terminal
unit
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Granted
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CN201711064769.XA
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CN107656169B (en
Inventor
邹宗骏
孙莹
许育民
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN201711064769.XA priority Critical patent/CN107656169B/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The embodiment of the invention discloses the detection method of a kind of display panel, display device and display panel.Wherein, display panel includes：N pressure sensitive unit, first switch unit, second switch unit and the 3rd switch element, the first end of i-th of pressure sensitive unit electrically connects with the first end of i-th of first switch unit, second end of i-th of pressure sensitive unit electrically connects with the second end of i-th of second switch unit, 3rd end of each pressure sensitive unit electrically connects with the 3rd calibrating terminal, 4th end of each pressure sensitive unit electrically connects with the 4th calibrating terminal, second end of each first switch unit electrically connects with the first calibrating terminal, the first end of each second switch unit electrically connects with the second calibrating terminal；The control terminal of i-th first switch unit and the control terminal of i-th of second switch unit electrically connect with the trigger signal output end of same one-level scanning element.Technical scheme provided in an embodiment of the present invention, the position of abnormal pressure sensing unit can be accurately positioned.

Description

The detection method of display panel, display device and display panel
Technical field
The present embodiments relate to Display Technique, more particularly to the inspection of a kind of display panel, display device and display panel Survey method.
Background technology
At present, the display panel with touch controllable function is widely used in mobile phone, flat board as a kind of information input tool In the various display products of computer, the information enquiry machine etc. in public place hall.
In order to preferably meet user's request, generally it is provided with touch-control display panel and touches touch-control for detecting user The pressure sensitive unit of touch-control pressure size during display panel, makes display panel to gather position of touch information, and Touch-control pressure size can be gathered, to enrich the application of touch-control Display Technique.The pressure sensitive unit of setting is typically by electricity Bridge is formed., it is necessary to be detected to pressure touch function in display panel manufacturing process, whether detection pressure touching control circuit goes out Now abnormal, detection method is that the first input end of each pressure sensitive unit is connected into (the test weldering of first calibrating terminal at present Disk) on, the second input of each pressure sensitive unit is connected to second calibrating terminal, then directly detects first test Integrated circuit impedance between terminal and second calibrating terminal, however, such a detection method is due to cannot be distinguished by pressure sensitive list The connection of first internal circuit, missing inspection be present, false retrieval, out-of-the way position can not be accurately positioned, can not confirm that abnormal cause etc. is various and ask Topic.
The content of the invention
The present invention provides the detection method of a kind of display panel, display device and display panel, to realize in manufacturing process In pressure touch detection is carried out to display panel, with prejudge pressure sensitive unit whether occur it is bad and abnormal, and accurately It is determined that the position of abnormal pressure sensitive unit.
In a first aspect, the embodiments of the invention provide a kind of display panel, the display panel includes：
N pressure sensitive unit, n first switch unit, n second switch unit and n the 3rd switch element, its In, n is the integer more than 1；
First calibrating terminal, the second calibrating terminal, the 3rd calibrating terminal and the 4th calibrating terminal；
The first end of i-th of pressure sensitive unit electrically connects with the first end of i-th of first switch unit, the Second end of the i pressure sensitive units electrically connects with the second end of i-th of second switch unit, each feeling of stress The 3rd end of unit is answered to be electrically connected with the 3rd calibrating terminal, the 4th end of each pressure sensitive unit is surveyed with the described 4th Terminal electrical connection is tried, the second end of each first switch unit electrically connects with first calibrating terminal, and each described second opens The first end for closing unit electrically connects with second calibrating terminal；
The scanning element of multi-stage cascade, for exporting scanning signal step by step, the scanning element exports including trigger signal End, for exporting trigger signal to scanning element described in next stage, to control the next stage scanning element to export the scanning Signal；
The control terminal of i-th first switch unit and the control terminal of i-th of second switch unit and same one-level The trigger signal output end electrical connection of the scanning element, the different first switch units and the scanning element not at the same level Trigger signal output end electrical connection；Wherein, 1≤i≤n.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, and it is any real that the display device includes the present invention The display panel of example offer is provided.
The third aspect, the embodiment of the present invention additionally provide a kind of detection method of display panel, and the detection method can be used for The display panel that any embodiment of the present invention provides, the detection method include：
In the pressure touch abnormality detection stage, to the first calibrating terminal input test signal, at i-th described first When switch element and i-th of second switch unit conducting, receive respectively second calibrating terminal signal, the described 3rd The signal of the signal of calibrating terminal and the 4th calibrating terminal, surveyed according to the signal of second calibrating terminal, the described 3rd Try the different of at least one of the signal of terminal and the signal of the 4th calibrating terminal i-th of pressure sensitive unit of determination Normal situation；
Or to the second calibrating terminal input test signal, in i-th of first switch unit and i-th of institute State second switch unit conducting when, receive respectively the signal of first calibrating terminal, the signal of the 3rd calibrating terminal and The signal of 4th calibrating terminal, according to the signal of first calibrating terminal, the signal of the 3rd calibrating terminal and institute State the unusual condition that at least one of signal of the 4th calibrating terminal determines i-th of pressure sensitive unit.
Fourth aspect, the embodiment of the present invention additionally provide a kind of detection method of display panel, and the detection method can be used for The display panel that any embodiment of the present invention provides, the detection method include：
In the pressure touch abnormality detection stage in i-th of first switch unit and i-th of second switch unit During conducting, the resistance between the first calibrating terminal and the second calibrating terminal is detected, first calibrating terminal and the described 3rd is surveyed Try at least one in the resistance between the resistance and second calibrating terminal and the 3rd calibrating terminal between terminal Kind, determine the unusual condition of i-th of pressure sensitive unit.
The control signal that the present invention is provided by scanning element, realizes and pressure sensitive unit is detected one by one, accurately Position the position of abnormal pressure sensitive unit.And each calibrating terminal of pressure sensitive units shared first, the second calibrating terminal, 3rd calibrating terminal and the 4th calibrating terminal, the quantity of calibrating terminal on display panel can be reduced, realize the narrow side of display panel Frame designs.
Brief description of the drawings
Fig. 1 is a kind of structural representation of display panel provided in an embodiment of the present invention；
Fig. 2 is a kind of signal waveforms provided in an embodiment of the present invention；
Fig. 3 is the structural representation of another display panel provided in an embodiment of the present invention；
Fig. 4 is a kind of circuit diagram of pressure sensitive unit provided in an embodiment of the present invention；
Fig. 5 is the circuit diagram of another pressure sensitive unit provided in an embodiment of the present invention；
Fig. 6 is that the embodiment of the present invention provides a kind of equivalent circuit diagram of pressure sensitive unit；
Fig. 7 is the structural representation of another display panel provided in an embodiment of the present invention；
Fig. 8 is the structural representation of another display panel provided in an embodiment of the present invention；
Fig. 9 is the structural representation of another display panel provided in an embodiment of the present invention；
Figure 10 is the structural representation of another display panel provided in an embodiment of the present invention；
Figure 11 is the structural representation of another display panel provided in an embodiment of the present invention；
Figure 12 is a kind of schematic diagram of display device provided in an embodiment of the present invention；
Figure 13 is a kind of schematic flow sheet of the detection method of display panel provided in an embodiment of the present invention；
Figure 14 is the schematic flow sheet of the detection method of another display panel provided in an embodiment of the present invention；
Figure 15 is the schematic flow sheet of the detection method of another display panel provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Referring to Fig. 1, Fig. 1 is that the embodiment of the present invention provides a kind of structural representation of display panel, and the display panel includes：
N pressure sensitive unit 10, n first switch unit 11 and n second switch unit 12, wherein, n is more than 1 Integer；
First calibrating terminal 21, the second calibrating terminal 22, the 3rd calibrating terminal 23 and the 4th calibrating terminal 24；
The first end A1 of i-th of pressure sensitive unit 10 electrically connects with the first end of i-th of first switch unit 11, and i-th Second end A2 of individual pressure sensitive unit 10 electrically connects with the second end of i-th of second switch unit 12, each pressure sensitive unit 10 the 3rd end B1 electrically connects with the 3rd calibrating terminal 23, the 4th end B2 and the 4th calibrating terminal 24 of each pressure sensitive unit 10 Electrical connection, the second end of each first switch unit 11 electrically connect with the first calibrating terminal 21, and the first of each second switch unit 12 End electrically connects with the second calibrating terminal 22；
The scanning element 31 of multi-stage cascade, for exporting scanning signal step by step, scanning element 31 exports including trigger signal Hold next, the trigger signal output end next of upper level scanning element 31 and the trigger signal input of next stage scanning element 31 Stv is electrically connected, for exporting trigger signal to next stage scanning element 31, to control the output scanning letter of next stage scanning element 31 Number；The output end out of scanning element 31 can electrically connect with the scan line on display panel, the output end out of scanning element 31 The scanning signal of output is transmitted to scan line, and scan line is charged, and then opens the pixel electrically connected with scan line, with Enable voltage data signal writing pixel, control pixel light emission is shown.Wherein, scanning element 31 can be output scanning signal Shift register.
The control terminal of i-th first switch unit 11 and the control terminal of i-th of second switch unit 12 with one-level with scanning The trigger signal output end next electrical connections of unit 31, different first switch units 11 and the triggering of scanning element 31 not at the same level Signal output part next is electrically connected；Wherein, 1≤i≤n.
4 pressure sensitive units 10 are schematically illustrated in Fig. 1.In Fig. 1 from top to bottom, it is followed successively by the 1st to the 4th Individual pressure sensitive unit 10.In display panel provided in an embodiment of the present invention, the number of pressure sensitive unit 10 can basis It is actually needed and carries out adaptability configuration.In embodiments of the present invention, first switch unit 11 and second switch unit 12 can roots Turned on according to the high level of its control terminal input, the low level inputted according to control terminal turns off；Or first switch unit 11 and The low level that two switch elements 12 input according to its control terminal turns on, and the high level inputted according to control terminal turns off.Fig. 2 is this hair The schematic diagram of the signal of the trigger signal output end output for the scanning element that bright embodiment provides.Wherein, next1, next2, Next3 and next4 represents tactile with the 1st in Fig. 1 to the 11 of the 4th first switch unit scanning element 31 electrically connected respectively The signal of signalling output end next outputs.Referring to Fig. 1 and Fig. 2, during with the control terminal input high level of first switch unit 11 First switch unit 11 turns on, and the conducting of second switch unit 12 is during the control terminal input high level of second switch unit 12 Example.In the t1 stages, next is high level, and the 1st first switch unit 11 and the 1st second switch unit 12 turn on, and other One switch element 11 and second switch unit 12 turn off.Signal is surveyed in the input of first calibrating terminal 21, and test signal passes through conducting 1st first switch unit 11 is transmitted to the first end A1 of the 1st pressure sensitive unit 10, by receiving the second calibrating terminal 22nd, the signal of the 3rd calibrating terminal 23 and of the 4th test lead 24, according to the signal of the second calibrating terminal 22, the 3rd calibrating terminal The signal of 23 signal and the 4th calibrating terminal 24 determines whether the 1st pressure sensitive unit 10 be abnormal, i.e., whether occurs not It is good.Such as by the signal of the signal of the second calibrating terminal 22, the signal of the 3rd calibrating terminal 23 and the 4th calibrating terminal 24 with The detection signal of first calibrating terminal 21 input is compared, and determines whether i-th pressure sensitive unit be abnormal, or according to the The electricity between resistance, the first calibrating terminal 21 and the 3rd calibrating terminal 23 between one calibrating terminal 21 and the second calibrating terminal 22 Resistance between resistance, the first calibrating terminal and the 4th calibrating terminal 24 determines whether i-th of pressure sensitive unit 10 be abnormal.In t2 Stage, next2 are high level, and the 2nd first switch unit 11 and the 2nd second switch unit 12 turn on, other first switches Unit 11 and second switch unit 12 turn off.Signal is surveyed in the input of first calibrating terminal 21, and test signal passes through the 2nd of conducting the One switch element 11 is transmitted to the first end A1 of the 2nd pressure sensitive unit 10, is surveyed by receiving the second calibrating terminal the 22, the 3rd The signal of the calibrating terminal 24 of terminal 23 and the 4th is tried, according to the signal of the second calibrating terminal 22, the signal of the 3rd calibrating terminal 23 And the 4th the signal of calibrating terminal 24 determine whether the 2nd pressure sensitive unit 10 abnormal.In the t3 stages, next3 is high electricity Flat, the 3rd first switch unit 11 and the 3rd second switch unit 12 turn on, other first switch units 11 and second switch Unit 12 turns off.The 3rd first switch unit 11 for passing through conducting to the input test signal of the first calibrating terminal 21, test signal Transmit to the first end of the 3rd pressure sensitive unit 10, by receiving the second calibrating terminal 22, the 3rd calibrating terminal 23 and the 4th The signal of calibrating terminal 24, according to the signal of the second calibrating terminal 22, the signal and the 4th test lead of the 3rd calibrating terminal 23 The signal of son 24 determines whether the 3rd pressure sensitive unit 10 be abnormal.In the t4 stages, next4 is high level, and the 4th first is opened Close unit 11 and the 4th second switch unit 12 turns on, other first switch units 11 and second switch unit 12 turn off.First Signal is surveyed in the input of calibrating terminal 21, and test signal is transmitted to the 4th pressure sensitive by the 4th first switch unit 11 of conducting The first end A1 of unit 10, by receiving the second calibrating terminal 22, the 3rd calibrating terminal 23 and the signal of the 4th calibrating terminal 24, The 4th is determined according to the signal, the signal of the 3rd calibrating terminal 23 and the signal of the 4th calibrating terminal 24 of the second calibrating terminal 22 Whether individual pressure sensitive unit 10 is abnormal.
, can also be by the second calibrating terminal it should be noted that in the other embodiment of the embodiment of the present invention 22 input test signals, pass through the signal of the first calibrating terminal 21 of detection, the signal and the 4th test lead of the 3rd calibrating terminal 23 The signal of son 24, determine whether pressure sensitive unit 10 is abnormal.Or the first calibrating terminal 21 of detection and the second calibrating terminal 22 Between resistance, detect the first calibrating terminal 21 and the 3rd calibrating terminal 23, detect the first calibrating terminal 21 and the 4th test lead Resistance between son 24, and then determine whether pressure sensitive unit 10 is abnormal.In addition, though the of each pressure sensitive unit 10 Three end B1 electrically connect with the 3rd calibrating terminal 21, the 4th end B2 of each pressure sensitive unit 10 with the 4th calibrating terminal 24 Electrical connection.Due to when being detected to one of pressure sensitive unit 10, the of the electrical connection of other pressure sensitive units 10 One switch element 11 and second switch unit 12 are turned off, and the test signal on the first calibrating terminal 21 is transmitted less than other pressure The first end of sensing unit 10, therefore, the pressure sensitive unit that other pressure sensitive units 10 will not be to current detection cause shadow Ring.It can be seen that multiple pressure sensitive units 10 can share the first calibrating terminal 21, the test of the second calibrating terminal the 22, the 3rd The calibrating terminal 24 of terminal 23 and the 4th, save the quantity of calibrating terminal, it is easy to accomplish the narrow frame design of display panel.To When one calibrating terminal 21 or the second 22 input test signal of calibrating terminal, and receive the signal of the 3rd calibrating terminal 23 and the 4th During the signal of calibrating terminal 24, the test probe of test equipment can be contacted the first calibrating terminal 21, the second calibrating terminal 22, 3rd calibrating terminal 23 and the 4th calibrating terminal 24, by testing probe to the first calibrating terminal 21 or the second calibrating terminal 22 Test signal is exported, the signal of the 3rd calibrating terminal 23 and the 4th calibrating terminal 24 is received by testing probe.
Technical scheme provided in an embodiment of the present invention, the first test can be passed through when scanning element exports trigger signal Terminal, the second calibrating terminal, the 3rd calibrating terminal and the 4th calibrating terminal detect to each pressure sensitive unit, to prejudge It is bad whether pressure sensitive sensor occurs.Trigger signal is exported by scanning element one by one, realized to pressure sensitive unit Detect one by one, which pressure sensitive unit can accurately determine is, can accurately determine the position of failure pressure sensing unit Put, solve the problems, such as that existing pressure sensitive unit has false retrieval and missing inspection.In addition, by the time-sharing multiplex to connection terminal, subtract The quantity of calibrating terminal is lacked, so that the more conducively realization of narrow frame.
Further, referring to Fig. 3, Fig. 3 is the structural representation of another display panel provided in an embodiment of the present invention.The One switch element 11 includes the first transistor M1, and second switch unit 12 includes second transistor M2；The of the first transistor M1 The first end with first switch unit 11, the second end and control terminal electrically connect respectively for one pole, the second pole and grid；Second transistor The first end with second switch unit 12, the second end and control terminal electrically connect M2 the first pole, the second pole and grid respectively.
Fig. 4 is a kind of structural representation of pressure sensitive unit provided in an embodiment of the present invention, referring to Fig. 4, the feeling of stress Unit is answered to include, pressure sensitive unit includes the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th Inductive reactance R4；
First inductive reactance R1 first end and the 3rd inductive reactance R3 first end and the first of pressure sensitive unit Hold A1 electrical connections, the of the first inductive reactance R1 the second end and the second inductive reactance R2 first end and pressure sensitive unit Three end B1 are electrically connected, the second inductive reactance R2 the second end and the 4th inductive reactance R4 the second end and pressure sensitive unit Second end A2 is electrically connected, the 3rd inductive reactance R3 the second end and the 4th inductive reactance R4 first end and pressure sensitive unit The 4th end B2 electrical connection.
With reference to Fig. 1, Fig. 2 and Fig. 4, using the 1st pressure sensitive unit as example, illustrate the embodiment of the present invention to pressure The detailed process of sensing unit detection.
In the t1 stages, when the 1st first switch unit 11 and the 1st conducting of second switch unit 12, the first test lead Test signal TX on son 21 is transmitted to the first end of pressure sensitive unit 10 by the 1st first switch unit 11 of conducting, By detecting the signal of the second calibrating terminal 22 successively, the signal of the 3rd calibrating terminal 23, the signal of the 4th calibrating terminal 24, really Whether constant-pressure sensing unit 10 is abnormal.Specifically, if the amplitude of the signal of the second calibrating terminal 22 of detection is more than the first threshold Value, such as when the amplitude of test signal be aV, first threshold can be 0.95aV, then illustrates the second calibrating terminal 22 and the first survey Examination terminal 21 is likely to occur short circuit, i.e. circuit between the first end A1 of pressure sensitive unit 10 and the second end A2 occurs short Road；If detecting that the amplitude of the signal of the second calibrating terminal 22 is more than or equal to Second Threshold, and it is less than or equal to first threshold, For example, Second Threshold can be 0.5aV, then the circuit for characterizing the first end A1 and the second end A2 of pressure sensitive unit 10 is normal； If detecting that the amplitude of the signal of the second calibrating terminal 22 is more than zero, less than Second Threshold, then pressure sensitive unit 10 is characterized First end A1 and the second end A2 between circuit be in high-impedance state；If the amplitude for detecting the signal of the second calibrating terminal 22 is Zero, then there is open circuit in the circuit characterized between the first end A1 and the second end A2 of pressure sensitive unit 10.When the test of detection the 3rd During the signal of terminal 23, if the amplitude of the signal of the 3rd calibrating terminal 23 of detection is more than first threshold, the 3rd test is characterized There is short circuit, i.e. the 3rd end B1 and first end A1 of pressure sensitive unit 10 in circuit between the calibrating terminal 21 of terminal 23 and first Between circuit there is short circuit；If detect that the amplitude of the signal of the 3rd calibrating terminal 23 is more than or equal to Second Threshold, and And being less than or equal to first threshold, then the circuit for characterizing the first end A1 and the 3rd end B1 of pressure sensitive unit 10 is normal；If inspection The amplitude for measuring the signal of the 3rd calibrating terminal 23 is more than zero, less than Second Threshold, then characterizes the first of pressure sensitive unit 10 It is in high-impedance state to hold the circuit between A1 and the 3rd end B1；If the amplitude for detecting the signal of the 3rd calibrating terminal 23 is zero, Open circuit be present in the circuit for characterizing the first end A1 and the 3rd end B1 of pressure sensitive unit 10.When the letter for detecting the 4th calibrating terminal 24 Number when, if the amplitude of the signal of the 4th calibrating terminal 24 of detection is more than first threshold, the 4th calibrating terminal 24 of sign and the There is short circuit in circuit between one calibrating terminal 21, i.e. the circuit of the end B2 of pressure sensitive unit 10 the 4th and first end A1 occurs Short circuit；If detecting that the amplitude of the signal of the 4th calibrating terminal 24 is more than or equal to Second Threshold, and it is less than or equal to the first threshold The circuit that value then characterizes the first end A1 and the 4th end B2 of pressure sensitive unit 10 is normal；If detect the 4th calibrating terminal 24 The amplitude of signal is more than zero, and less than Second Threshold, then the circuit for characterizing the first end A1 and the 4th end B2 of pressure sensitive unit 10 is in High-impedance state；If the amplitude for detecting the signal of the 4th calibrating terminal 24 is zero, the first end of pressure sensitive unit 10 is characterized Open circuit be present in A1 and the 4th end B2 circuit.The detection to the 2nd pressure sensitive unit 10 can be realized in the t2 stages, in the t3 stages The detection to the 3rd pressure sensitive unit 10 can be achieved, the detection to the 4th pressure sensitive unit 10 can be realized in the t4 stages. That is, the trigger signal of the trigger signal output end next outputs of scanning element 31, n first switch unit 11 and n individual the is controlled Two switch elements 12 sequentially turn on, the test signal that n pressure sensitive unit 10 of control is sequentially accessed on the first calibrating terminal 21 TX., can when the 1st to i-th first switch unit 11 turns on one by one, and the 1st to i-th second switch unit 12 turns on To realize the 1st detection to i-th of pressure sensitive unit 10 one by one.Wherein, SS1 and SS2 can represent the second calibrating terminal 22, Waveform on 3rd calibrating terminal 23 or the 4th calibrating terminal 24；Wherein, SS1 waveform can characterize the 1st to the 4th pressure Sensing unit 10 is normal, and SS2 waveform can characterize the 1st pressure sensitive unit 10 and short circuit, the 2nd pressure sensitive unit 10 occurs Normally, there is high-impedance state in the circuit in the 3rd pressure sensitive unit 10,
Open circuit conditions be present in the circuit in the 4th pressure sensitive unit 10.
In the other embodiment mode of the embodiment of the present invention, pressure sensitive unit 10 can be also determined by detection resistance value It is whether abnormal.Exemplarily, it is assumed that the first inductive reactance R1, the second inductive reactance R2, the sensings of the 3rd inductive reactance R3 and the 4th Resistance R4 resistance value is r.Testing result judgement refers to following table,
Wherein, what terminal 21-23 represented detection is the resistance value between the first calibrating terminal 21 and the 3rd calibrating terminal 23, As therebetween resistance value be 0, then characterize the circuit between the first calibrating terminal 21 and the 3rd calibrating terminal 23 occur it is short Road, if the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4, without there is short circuit, first senses Resistance R1 short circuits；If resistance value therebetween is (2/3) r, characterize the second inductive reactance R2, the 3rd inductive reactance R3 or 4th inductive reactance R4 short circuits.If resistance value therebetween is 3r, the first inductive reactance R1 open circuits are characterized.Terminal 21- 24 represent the resistance value between the first calibrating terminal 21 of detection and the 4th calibrating terminal 24.Terminal 21-22 represents that detection first is surveyed Try the resistance value between the calibrating terminal 22 of terminal 21 and second.
It can be seen that display panel provided in an embodiment of the present invention, it may be determined that the abnormal cause of each pressure sensitive unit.
Fig. 5 is the structural representation of another pressure sensitive unit provided in an embodiment of the present invention.Referring to Fig. 5, feeling of stress It is in quadrangle to answer unit, is made up of semi-conducting material, including first be oppositely arranged while and when second, and be oppositely arranged Three while and when the 4th；
The first end A1 of pressure sensitive unit, the second end A2, the 3rd end B1 and the 4th end B2 are respectively positioned at the first side, second While, the 3rd while and the 4th side.
The equivalent circuit diagram of pressure sensitive unit is as shown in fig. 6, adjacent two connection ends (first end A1 and the 3rd end B1, first end A1 and the 4th end B2, the second end A2 and the 3rd end B1 and the second end A2 and the 4th end B2) between by partly leading Body material membrane connects, and is equivalent to connect by a resistance, now obtains four resistance R by equivalent between four connection ends, just Equivalent to an electric bridge shown in Fig. 4, the detailed process of pressure sensitive unit detection is referred to the feeling of stress shown in Fig. 4 Answer the description of the detection of unit.Wherein, the shape of pressure sensitive unit can be square.
The embodiment of the present invention also provides a kind of display panel, after pressure touch abnormality detection, pressure sensitive shown in Fig. 1 Electrical connection between 3rd end B1 of unit 10 and the 3rd calibrating terminal 23 is cut off, the 4th end B2 of pressure sensitive unit 10 with Electrical connection between 4th calibrating terminal 24 is cut off, and then obtains the display panel.Exemplarily, for aobvious shown in Fig. 1 Show panel, after pressure touch abnormality detection is carried out to display panel, each pressure sensitive list can be cut off by laser cutting The metal routing that the calibrating terminal 23 of member 10 and the 3rd electrically connects, cut off the electricity of each calibrating terminal 24 of pressure sensitive unit 10 and the 4th The metal routing of connection.Each 3rd end B1 of each pressure sensitive unit 10 is set to insulate, and the of each pressure sensitive unit 10 Four end B2 insulate.To realize to the detection for the pressure born on display panel.Specifically, display panel also includes the first input Signal wire, the second input signal cable and the output signal line of n bars first and the output signal line of n bars second；I-th of pressure sensitive unit The 3rd end and the 4th end electrically connected respectively with i-th article of first output signal line and i-th article of second output signal line；First input Signal wire electrically connects with the first calibrating terminal, and the second input signal cable electrically connects with the second calibrating terminal.Wherein, pressure sensitive list The first end and the second end of member are respectively two inputs of pressure sensitive unit, the 3rd end of pressure sensitive unit and the 4th end Respectively two output ends of pressure sensitive unit.First input signal cable, the second input signal cable, the output signal of n bars first Line and the output signal line of n bars second can be respectively with drive integrated circult (driving IC) corresponding port electrically connect.For example, normal During display, IC is to the first input signal cable and the second input signal cable output drive signal for driving, is opened when the 1st first When closing unit and the conducting of the 1st second switch unit, pass through conducting the 1st first of the drive signal on the first input signal cable Switch element is transmitted to the first end of the 1st pressure sensitive unit, and the drive signal on the second input signal cable passes through conducting 1st second switch unit is transmitted to the second end of the 1st pressure sensitive unit, the 1st pressure sensitive unit according to its first End and the drive signal of the second end input, at the 3rd end and the 4th end output pressure detection signal, IC is according to pressure detecting for driving Signal, determine the size of touch-control pressure.When the 2nd first switch unit and the 2nd second switch unit conducting, the first input Drive signal on signal wire is transmitted to the first end of the 2nd pressure sensitive unit by the 2nd first switch unit of conducting, Drive signal on second input signal cable is transmitted to the 2nd pressure sensitive unit by the 2nd second switch unit of conducting The second end, the drive signal that the 2nd pressure sensitive unit inputs according to its first end and the second end, at the 3rd end and the 4th end Output pressure detection signal, IC is according to pressure detecting signal for driving, determines the size of touch-control pressure.In this way, display panel is successively Touch-control pressure detecting is realized by each pressure sensitive unit, determines that display panel bears the size of pressure.
Fig. 7 is the structure chart of another display panel provided in an embodiment of the present invention, referring to Fig. 7, in above-described embodiment On the basis of, the display panel also includes n the 3rd switch elements 13, n the 4th switch elements 14 and the 5th calibrating terminal 25； 3rd end B1 of pressure sensitive unit 10 is electrically connected by the 3rd switch element 13 with the 3rd calibrating terminal 23；Pressure sensitive unit 10 the 4th end B2 is electrically connected by the 4th switch element 14 with the 4th calibrating terminal 24；
Wherein, the 3rd end B1 and i-th of the 3rd switch elements 13 of i-th of pressure sensitive unit 10 first end are electrically connected Connect, the 4th end B2 of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 4th switch elements 14；Each 3rd switch Second end of unit 13 electrically connects with the 3rd calibrating terminal 23, the second end and the 4th calibrating terminal 24 of each 4th switch element 14 Electrical connection；
The control terminal of each 3rd switch element 13 and the control terminal of the switch elements 14 of Ge tetra- and the electricity of the 5th calibrating terminal 25 Connection.
When being detected to each pressure sensitive unit 10, control signal, control can be inputted to the 5th calibrating terminal 25 Each 3rd switch element 13 and the 4th switch element 14 turn on, right after the 3rd switch element 13 and the conducting of the 4th switch element 14 The detection of pressure sensitive unit 10 is similar with to the display panel shown in Fig. 1.Pressure is touched on to the display panel shown in Fig. 7 After controlling abnormality detection completion, the metal that can not cut off each calibrating terminal 23 of pressure sensitive unit 10 and the 3rd electrical connection is walked Line, the metal routing of each calibrating terminal 24 of pressure sensitive unit 10 and the 4th electrical connection is not cut off yet.By driving electricity accordingly The output control signal of the 5th calibrating terminal of road direction 25, control the 3rd switch element 13 and the 4th switch element 14 to turn off, make a pressure Each 3rd end B1 of power sensing unit 10 insulate, and the 4th end B2 of each pressure sensitive unit 10 insulate.And then ensure The detection of touch-control pressure on display panel can be realized.The survey of pressure sensitive unit 10 and the 3rd is cut by laser due to that need not pass through The metal routing of the electrical connection of the calibrating terminal 2 of terminal 23 and the 4th is tried, laser cutting process can be solved and easily cause metal The problem of cabling short circuit, ensure the reliability of display panel work.
Certainly, also can be after pressure touch abnormality detection, the 3rd end of cut-out pressure sensing unit is opened with the described 3rd The electrical connection between unit is closed, the electrical connection between the 4th end of cut-out pressure sensing unit and the 4th switch element, is obtained another A kind of display panel.
Fig. 8 is the structural representation of another display panel provided in an embodiment of the present invention, referring to Fig. 8, in above-mentioned implementation On the basis of example, the display panel also includes the 6th calibrating terminal 26, n the 5th switch element 15 and n the 6th switch elements 16；The first end of i-th of the 5th switch elements 15 electrically connects with the first end of i-th of pressure sensitive unit 10, opens for i-th the 5th The second end for closing unit 15 electrically connects with the first calibrating terminal 21, control terminal and the 6th calibrating terminal of each 5th switch element 15 26 electrical connections；
Second end of i-th of the 6th switch elements 16 electrically connects with the second end A2 of i-th of pressure sensitive unit 10, and i-th The first end of individual 6th switch element 16 electrically connects with the second calibrating terminal 22, the control terminal and the 6th of each 6th switch element 16 Calibrating terminal 26 electrically connects.By setting the 6th calibrating terminal 26, in display panel course of normal operation, the 5th can be controlled The switch element 16 of switch element 15 and the 6th turns on, and drive signal is added by the 5th switch element 15 and the 6th switch element 16 It is loaded onto the first end A1 and the second end A2 of pressure sensitive unit 10, the output pressure detection signal of pressure sensitive unit 10, realization pair The detection of touch-control pressure on display panel.Display surface course of normal operation, after referring to display panel composition module, there is driving electricity Road, such as drive IC, first end A1 and the second end A2 to pressure sensitive unit 10 provide drive signal, such as to pressure sensitive The first end A1 of unit 10 provides power supply signal, and the second end A2 provides ground signalling；According to each pressure sensitive list received 10 the 3rd end B1 of member and the 4th end B2 signal, determine the size of touch-control pressure.In display panel course of normal operation, The 5th switch element 15 and the 6th switch element 16 can be controlled to turn off, exported by the trigger signal output end next of scanning element 31 Trigger signal control first switch unit 11 and second switch unit 12 turn on, realize pressure sensitive unit 10 to touch-control one by one The detection of pressure, when a pressure sensitive unit 10 works wherein, other pressure sensitive units 10 do not have input drive signal, no Work, can reduce power consumption.Corresponding control mode can be selected according to the design requirement of display panel.
Fig. 9 is the structural representation of another display panel provided in an embodiment of the present invention.Referring to Fig. 9, the display panel Also include the 7th calibrating terminal 27 and n the 7th switch elements 17；
The control terminal of each first switch unit 11 and the control terminal of second switch unit 12 pass through one the 7th switch element 17 electrically connect with the trigger signal output end next of corresponding scanning element 31；
Wherein, the first end of i-th of the 7th switch elements 17 and the control terminal of i-th first switch unit 11 and i-th The control terminal electrical connection of second switch unit 12, the second end of i-th of the 7th switch elements 17 and i-th of first switch unit 11 The trigger signal output end next electrical connections of corresponding scanning element 31, the control terminal and the 7th of i-th of the 7th switch elements 17 Calibrating terminal 27 electrically connects.Because display panel is in course of normal operation, may work in both modes：1st, display and touch-control Pressure detecting time-sharing work；2nd, display and touch-control pressure detecting work simultaneously；Under the 1st kind of mode of operation, the circuit work in Fig. 8 Make no any problem, but work as under the 2nd kind of mode of operation, because the trigger signal output end next of scanning element 31 opens with first Close the control terminal of unit 11 and the control terminal electrical connection of second switch unit 12, the trigger signal output end next of scanning element 31 The trigger signal of output opens first switch unit 11 and second switch unit 12 successively, such as is exported to the 6th calibrating terminal 26 Control signal, control the 5th switch element 15 and the 6th switch element 16 to turn on, open the 1st first switch unit and the 1st Individual second switch unit, and now other first switch units 11 and second switch unit 12 turn off, and will cause the 1st feeling of stress Answer the first end A1 of unit 10 and the impedance on the second end A2 circuits and the situation of other pressure sensitive units 10 inconsistent, may Influence the degree of accuracy of touch-control pressure detecting.Therefore the 7th switch element 17 of design and the 7th calibrating terminal 27, it is different in touch-control pressure During normal detection-phase, the 7th switch element 17 of control turns on.In display panel course of normal operation, and work in the 2nd kind of pattern When lower, it can be turned off by drive circuit to the output control signal of the 7th calibrating terminal 27, all 7th switch elements 17 of control, In this way, the trigger signal of the trigger signal output end next outputs of scanning element 31 can not be transmitted to first switch unit 11 and the The control terminal of two switch elements 12, first switch unit 11 and second switch unit 12 are not turned on, in detection process, each feeling of stress Answer the resistance between the first end A1 of unit 10 and the second end A2 to reach unanimity, improve the degree of accuracy of touch-control pressure detecting and reliable Property.
Figure 10 is the structural representation of another display panel provided in an embodiment of the present invention, above-mentioned any referring to Figure 10 On the basis of display panel shown in embodiment, in the display panel, first switch unit 11 includes the first transistor M1, and second Switch element 12 includes second transistor M2, and the 3rd switch element 13 includes third transistor M3, and the 4th switch element 14 includes 4th transistor M4, the 5th switch element 15 include the 5th transistor M5, and the 6th switch element 16 includes the 6th transistor M6, the Seven switch elements 17 include the 7th transistor M7；
Wherein, the first transistor M1 the first pole, the second pole and the grid first end with first switch unit 11, respectively Two ends and control terminal electrical connection；Second transistor M2 the first pole, the second pole and grid respectively with second switch unit 12 One end, the second end and control terminal electrical connection；Third transistor M3 the first pole, the second pole and grid respectively with the 3rd switch element 13 first end, the second end and control terminal electrical connection；4th transistor M4 the first pole, the second pole and grid is opened with the 4th respectively Close first end, the second end and the control terminal electrical connection of unit 14；5th transistor M5 the first pole, the second pole and grid respectively with First end, the second end and the control terminal electrical connection of 5th switch element 15；6th transistor M6 the first pole, the second pole and grid The first end with the 6th switch element 16, the second end and control terminal electrically connect respectively；7th transistor M7 the first pole, the second pole The first end with the 7th switch element 17, the second end and control terminal electrically connect respectively with grid.Wherein, the first to the 7th transistor Can be N-type transistor or P-type transistor.Exemplarily, in the circuit shown in Figure 10, the first to the 7th transistor is N-type transistor, Fig. 2 is participated in, signal pad25, the 6th test on touch-control pressure anomaly detection-phase, the 5th calibrating terminal 25 The test signal pad27 on signal pad26, the 7th calibrating terminal 27 on terminal 26 is high level, third transistor to Seven transistors are both turned on.
It should be noted that display panel provided in an embodiment of the present invention, two adjacent pressure sensitive units can lead to Cross first switch unit and second switch unit to electrically connect from different scanning elements, the two different scanning elements can phase Neighbour, can also be non-conterminous.Figure 11 is the structural representation of another display panel provided in an embodiment of the present invention.1st first The trigger signal of the control terminal of switch element 11 and the control terminal and first scanning element 31 of the 1st second switch unit 12 is defeated Go out to hold out to electrically connect；The control terminal of 2nd first switch unit 11 and the control terminal and the 3rd of the 2nd second switch unit 12 The trigger signal output end out electrical connections of individual scanning element 31, also, the output end out of scanning element is as its trigger signal Output end next.
The embodiment of the present invention additionally provides a kind of display device, and referring to Figure 12, Figure 12 is provided in an embodiment of the present invention one The structural representation of kind display device.Referring to Figure 12, the display device 110 includes the display that any embodiment of the present invention provides Panel 100.Display device 110 can be such as touch display screen, mobile phone, tablet PC, notebook computer or television set Any electronic equipment with display function.
The embodiment of the present invention additionally provides a kind of detection method of display panel, and the detection method can be used for appointing the present invention The display panel that meaning embodiment provides is detected.Exemplarily, by taking the display panel shown in Fig. 1 as an example, referring to Figure 13, this hair The detection method for the display panel that bright embodiment provides includes：
S101, in the pressure touch abnormality detection stage, to the first calibrating terminal input test signal, opened at i-th first When closing unit and i-th of second switch unit conducting, signal, the signal of the 3rd calibrating terminal of the second calibrating terminal are received respectively With the signal of the 4th calibrating terminal；
For example, contacting the first calibrating terminal by the test probe of test equipment, test equipment is inputted to the first terminal and surveyed Trial signal；Simultaneously by providing corresponding control signal, scanning element trigger signal output end output triggering letter to scanning element Number give first switch unit and second switch unit.
In S102, signal, the signal of the 3rd calibrating terminal and the signal of the 4th calibrating terminal according to the second calibrating terminal I-th of pressure sensitive unit of at least one determination unusual condition；
With reference to figure 1 and Fig. 2, in the t1 stages, the trigger signal output end of scanning element 31 exports trigger signal to the 1st the One switch element 11 and the 1st second switch unit 12, the 1st first switch unit 11 and the 1st second switch unit 12 are led Logical, the test signal TX on the first calibrating terminal 21 is transmitted to pressure sensitive list by the 1st first switch unit 11 of conducting The first end of member 10, by detecting the signal of the second calibrating terminal 22, the signal of the 3rd calibrating terminal 23, the 4th test lead successively The signal of son 24, determine whether pressure sensitive unit 10 is abnormal.Specifically, if the width of the signal of the second calibrating terminal 22 of detection Value is more than first threshold, such as when the amplitude of test signal is V, first threshold can be 0.95V, then illustrates the second calibrating terminal 22 and first calibrating terminal 21 be likely to occur short circuit, i.e. circuit between the first end A1 of pressure sensitive unit 10 and the second end A2 There is short circuit；If detecting that the amplitude of the signal of the second calibrating terminal 22 is more than or equal to Second Threshold, and it is less than or equal to First threshold, for example, Second Threshold can be 0.5V, then characterize the first end A1 and the second end A2 of pressure sensitive unit 10 electricity Road is normal；If detecting that the amplitude of the signal of the second calibrating terminal 22 is more than zero, less than Second Threshold, then pressure sensitive is characterized Circuit between the first end A1 of unit 10 and the second end A2 is in high-impedance state；If detect the signal of the second calibrating terminal 22 Amplitude is zero, then the circuit characterized between the first end A1 and the second end A2 of pressure sensitive unit 10 has open circuit.When detection the During the signal of three calibrating terminals 23, if the amplitude of signal of the 3rd calibrating terminal 23 of detection is more than first threshold, the is characterized There is short circuit in circuit between three calibrating terminals 23 and the first calibrating terminal 21, i.e. the 3rd end B1 of pressure sensitive unit 10 and the There is short circuit in circuit between the A1 of one end；
Figure 14 is the detection method of another display panel provided in an embodiment of the present invention, referring to Figure 14, the detection method Including：
S201, in the pressure touch abnormality detection stage, to the second calibrating terminal input test signal, opened at i-th first When closing unit and i-th of second switch unit conducting, signal, the signal of the 3rd calibrating terminal of the first calibrating terminal are received respectively With the signal of the 4th calibrating terminal.
In S202, signal, the signal of the 3rd calibrating terminal and the signal of the 4th calibrating terminal according to the first calibrating terminal I-th of pressure sensitive unit of at least one determination unusual condition.
Further, display panel provided in an embodiment of the present invention also includes n the 3rd switch elements, n the 4th switch Unit and the 5th calibrating terminal；3rd end of pressure sensitive unit is electrically connected by the 3rd switch element with the 3rd calibrating terminal； 4th end of pressure sensitive unit is electrically connected by the 4th switch element with the 4th calibrating terminal；Wherein, i-th of pressure sensitive list 3rd end of member electrically connects with the first end of i-th of the 3rd switch elements, the 4th end of i-th of pressure sensitive unit and i-th The first end electrical connection of 4th switch element；Second end of each 3rd switch element electrically connects with the 3rd calibrating terminal, and each 4th Second end of switch element electrically connects with the 4th calibrating terminal；The control terminal of each 3rd switch element and the switch elements of Ge tetra- Control terminal electrically connects with the 5th calibrating terminal；
In the pressure touch abnormality detection stage, the first control signal is inputted to the 5th calibrating terminal, the 3rd switch element and 4th switching means conductive；Specifically, the first control signal, the first control can be inputted to the 5th calibrating terminal by test equipment Signal is high level signal or low level signal.
To the first calibrating terminal input test signal, if the signal of the second calibrating terminal, the signal of the 3rd calibrating terminal It is more than first threshold with the amplitude of the signal of the 4th calibrating terminal and is less than the amplitude of test signal, then i-th of pressure sensitive list It is first normal；If amplitude of signal of the signal of the second calibrating terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal etc. In the amplitude of test signal, then i-th of pressure sensitive unit appearance short circuit；If the signal of the second calibrating terminal, the 3rd test The amplitude of the signal of the signal of terminal or the 4th calibrating terminal is equal to zero, then open circuit occurs in i-th of pressure sensitive unit；If the The amplitude of the signal of the signal of two calibrating terminals, the signal of the 3rd calibrating terminal or the 4th calibrating terminal is more than zero and less than second Threshold value, then i-th of pressure sensitive unit there is high-impedance state；
To the second calibrating terminal input test signal, if the signal of the first calibrating terminal, the signal of the 3rd calibrating terminal Be more than or equal to first threshold with the amplitude of the signal of the 4th calibrating terminal and be less than or equal to Second Threshold, then i-th of pressure sensitive Unit is normal；If the amplitude of the signal of the signal of the first calibrating terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal More than Second Threshold and less than or equal to the amplitude of test signal, then i-th of pressure sensitive unit appearance short circuit；If the first test The amplitude of the signal of the signal of terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal is equal to zero, then i-th of pressure sensitive There is open circuit in unit；If the signal of the signal of the first calibrating terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal Amplitude is more than zero and is less than first threshold, then high-impedance state occurs in i-th of pressure sensitive unit.Above test process, there is test Equipment is completed.
Further, display panel provided in an embodiment of the present invention also includes the 6th calibrating terminal, n the 5th switch element With n the 6th switch elements；The first end of i-th of the 5th switch elements electrically connects with the first end of i-th of pressure sensitive unit, Second end of i-th of the 5th switch elements is electrically connected with the first calibrating terminal, and the control terminal of each 5th switch element is surveyed with the 6th Try terminal electrical connection；Second end of i-th of the 6th switch elements electrically connects with the second end of i-th of pressure sensitive unit, i-th The first end of 6th switch element electrically connects with the second calibrating terminal, control terminal and the 6th calibrating terminal of each 6th switch element Electrical connection；
Correspondingly, the detection method of display panel provided in an embodiment of the present invention also includes：
In the pressure touch abnormality detection stage, the second control signal is inputted to the 6th calibrating terminal, the switch of control the 5th is single Member and the shut-off of the 6th switch element.
Further, display panel provided in an embodiment of the present invention also includes the 7th calibrating terminal and n the 7th switch is single Member；The control terminal of each first switch unit and the control terminal of second switch unit are swept by one the 7th switch element with corresponding Retouch the trigger signal output end electrical connection of unit；Wherein, the first end of i-th of the 7th switch elements and i-th of first switch list The control terminal of member and the control terminal electrical connection of i-th second switch unit, the second end of i-th of the 7th switch elements with i-th Scanning element corresponding to first switch unit trigger signal output end electrical connection, the control terminal of i-th of the 7th switch elements with 7th calibrating terminal electrically connects；
Detection method also includes：
In the pressure touch abnormality detection stage, the first control signal is inputted to the 7th calibrating terminal, the 7th switch element is led It is logical.
After being completed to display panel detection, display panel composition module, in the normally display stage, to the 5th test lead Son and the 7th calibrating terminal input the second control signal, the 3rd switch element, the 4th switch element and the shut-off of the 7th switch element； The first control signal is inputted to the 6th calibrating terminal, controls the 5th switch element and the 6th switching means conductive.For example, normal In the display stage, there is the driving IC on display panel to input the second control signal, control to the 5th calibrating terminal and the 7th calibrating terminal Make the 3rd switch element, the 4th switch element and the shut-off of the 7th switch element；There is the driving IC on display panel to be tested to the 6th Terminal inputs the first control signal, controls the 5th switch element and the 6th switching means conductive.
The embodiment of the present invention additionally provides the detection method of another display panel, is carried available for any embodiment of the present invention The display panel of confession, referring to Figure 15, the detection method includes：
S301, in the pressure touch abnormality detection stage in i-th of first switch unit and the conducting of i-th second switch unit When, detect between resistance between the first calibrating terminal and the second calibrating terminal, the first calibrating terminal and the 3rd calibrating terminal At least one of resistance between resistance and the second calibrating terminal and the 3rd calibrating terminal；
S302, the resistance according between the first calibrating terminal of detection and the second calibrating terminal, the first calibrating terminal and the 3rd The resistance between resistance and the second calibrating terminal and the 3rd calibrating terminal between calibrating terminal at least one of determine the The unusual condition of i pressure sensitive unit.
Further, display panel provided in an embodiment of the present invention also includes：N the 3rd switch elements, n the 4th switch Unit and the 5th calibrating terminal；3rd end of pressure sensitive unit is electrically connected by the 3rd switch element with the 3rd calibrating terminal； 4th end of pressure sensitive unit is electrically connected by the 4th switch element with the 4th calibrating terminal；
Wherein, the 3rd end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 3rd switch elements, i-th 4th end of pressure sensitive unit electrically connects with the first end of i-th of the 4th switch elements；Second end of each 3rd switch element Electrically connected with the 3rd calibrating terminal, the second end of each 4th switch element electrically connects with the 4th calibrating terminal；
The control terminal of each 3rd switch element and the control terminal of the switch elements of Ge tetra- electrically connect with the 5th calibrating terminal；
6th calibrating terminal, n the 5th switch elements and n the 6th switch elements；
The first end of i-th of the 5th switch elements electrically connects with the first end of i-th of pressure sensitive unit, i-th the 5th Second end of switch element electrically connects with the first calibrating terminal, and the control terminal of each 5th switch element is electrically connected with the 6th calibrating terminal Connect；
Second end of i-th of the 6th switch elements electrically connects with the second end of i-th of pressure sensitive unit, i-th the 6th The first end of switch element electrically connects with the second calibrating terminal, and the control terminal of each 6th switch element is electrically connected with the 6th calibrating terminal Connect；
Detection method also includes：
In the pressure touch abnormality detection stage, the second control signal is inputted to the 6th calibrating terminal, the switch of control the 5th is single Member and the shut-off of the 6th switch element.
Further, display panel provided in an embodiment of the present invention also includes the 7th calibrating terminal and n the 7th switch is single Member；
The control terminal of each first switch unit and the control terminal of second switch unit by one the 7th switch element with it is right The trigger signal output end electrical connection for the scanning element answered；
Wherein, the first end of i-th of the 7th switch elements and the control terminal of i-th first switch unit and i-th second The control terminal electrical connection of switch element, the scanning corresponding with i-th of first switch unit of the second end of i-th of the 7th switch elements The trigger signal output end electrical connection of unit, the control terminal of i-th of the 7th switch elements electrically connect with the 7th calibrating terminal；
Detection method also includes：
In the pressure touch abnormality detection stage, the first control signal is inputted to the 7th calibrating terminal, the 7th switch element is led It is logical；For example, there is test equipment to input the first control signal to the 7th calibrating terminal.
In the normally display stage, the second control signal, the 3rd switch are inputted to the 5th calibrating terminal and the 7th calibrating terminal Unit, the 4th switch element and the shut-off of the 7th switch element；The first control signal is inputted to the 6th calibrating terminal, control the 5th is opened Close unit and the 6th switching means conductive.Such as there is driving IC on display panel to the 5th calibrating terminal and the 7th calibrating terminal Input the second control signal, the 3rd switch element of control, the 4th switch element and the shut-off of the 7th switch element；To the 6th test lead Son the first control signal of input, controls the 5th switch element and the 6th switching means conductive.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes, Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (19)

  1. A kind of 1. display panel, it is characterised in that including：
    N pressure sensitive unit, n first switch unit and n second switch unit, wherein, n is the integer more than 1；
    First calibrating terminal, the second calibrating terminal, the 3rd calibrating terminal and the 4th calibrating terminal；
    The first end of i-th of pressure sensitive unit electrically connects with the first end of i-th of first switch unit, i-th Second end of the pressure sensitive unit electrically connects with the second end of i-th of second switch unit, each pressure sensitive 3rd end of unit electrically connects with the 3rd calibrating terminal, the 4th end of each pressure sensitive unit and the described 4th test Terminal electrically connects, and the second end of each first switch unit electrically connects with first calibrating terminal, each second switch The first end of unit electrically connects with second calibrating terminal；
    The scanning element of multi-stage cascade, for exporting scanning signal step by step, the scanning element includes trigger signal output end, uses In exporting trigger signal to scanning element described in next stage, to control the next stage scanning element to export the scanning signal；
    The control terminal of i-th first switch unit and the control terminal of i-th of second switch unit with described in one-level The trigger signal output end electrical connection of scanning element, the different first switch units touch with the scanning element not at the same level Signalling output end electrically connects；Wherein, 1≤i≤n.
  2. 2. display panel according to claim 1, it is characterised in that also opened including n the 3rd switch elements, n the 4th Close unit and the 5th calibrating terminal；3rd end of the pressure sensitive unit passes through the 3rd switch element and the described 3rd Calibrating terminal electrically connects；4th end of the pressure sensitive unit passes through the 4th switch element and the 4th calibrating terminal Electrical connection；
    Wherein, the 3rd end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 3rd switch element, 4th end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 4th switch element；Each described 3rd Second end of switch element electrically connects with the 3rd calibrating terminal, the second end and the described 4th of each 4th switch element Calibrating terminal electrically connects；
    The control terminal of each 3rd switch element and the control terminal of each 4th switch element and the 5th calibrating terminal Electrical connection.
  3. 3. display panel according to claim 2, it is characterised in that after pressure touch abnormality detection, the pressure Electrical connection between 3rd end of sensing unit and the 3rd switch element is cut off, the 4th end of the pressure sensitive unit Electrical connection between the 4th switch element is cut off.
  4. 4. display panel according to claim 2, it is characterised in that also single including the 6th calibrating terminal, n the 5th switch Member and n the 6th switch elements；
    The first end of i-th of the 5th switch element electrically connects with the first end of i-th of pressure sensitive unit, i-th Second end of the 5th switch element electrically connects with first calibrating terminal, the control terminal of each 5th switch element with The 6th calibrating terminal electrical connection；
    Second end of i-th of the 6th switch element electrically connects with the second end of i-th of pressure sensitive unit, i-th The first end of 6th switch element electrically connects with second calibrating terminal, the control terminal of each 6th switch element with The 6th calibrating terminal electrical connection.
  5. 5. display panel according to claim 4, it is characterised in that the first end of the pressure sensitive unit and the second end Two inputs of respectively described pressure sensitive unit, the 3rd end and the 4th end of the pressure sensitive unit are respectively described Two output ends of pressure sensitive unit；
    The display panel also includes the first input signal cable, the second input signal cable and n articles of the first output signal line and n articles the Two output signal lines；The 3rd end and the 4th end of i-th pressure sensitive unit respectively with i-th article of first output signal Line and i-th the second output signal line electrical connection；First input signal cable electrically connects with first calibrating terminal, Second input signal cable electrically connects with second calibrating terminal.
  6. 6. display panel according to claim 4, it is characterised in that also including the 7th calibrating terminal and n the 7th switch Unit；
    The control terminal of each first switch unit and the control terminal of second switch unit pass through the 7th switch element Electrically connected with the trigger signal output end of the corresponding scanning element；
    Wherein, the first end of i-th of the 7th switch element and the control terminal of i-th first switch unit and i-th The control terminal electrical connection of the second switch unit, the second end of i-th of the 7th switch element with described i-th described the The trigger signal output end electrical connection of the scanning element corresponding to one switch element, the control of i-th of the 7th switch element End processed electrically connects with the 7th calibrating terminal.
  7. 7. display panel according to claim 6, it is characterised in that the first switch unit includes the first transistor, The second switch unit includes second transistor, and the 3rd switch element includes third transistor, and the 4th switch is single Member includes the 4th transistor, and the 5th switch element includes the 5th transistor, and the 6th switch element includes the 6th crystal Pipe, the 7th switch element include the 7th transistor；
    The first pole, the second pole and the grid of the first transistor first end with the first switch unit, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of the second transistor first end with the second switch unit, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of the third transistor first end with the 3rd switch element, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of 4th transistor first end with the 4th switch element, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of 5th transistor first end with the 5th switch element, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of 6th transistor first end with the 6th switch element, the second end respectively Electrically connected with control terminal；
    The first pole, the second pole and the grid of 7th transistor first end with the 7th switch element, the second end respectively Electrically connected with control terminal.
  8. 8. according to the display panel described in claim any one of 1-7, it is characterised in that the pressure sensitive unit includes first Inductive reactance, the second inductive reactance, the 3rd inductive reactance and the 4th inductive reactance；
    The first end of first inductive reactance and the first end of the 3rd inductive reactance and the pressure sensitive unit First end electrically connects, first end and the feeling of stress of the second end of first inductive reactance and second inductive reactance Answer the end of unit the 3rd to electrically connect, the second end of the second end of second inductive reactance and the 4th inductive reactance with it is described The second end electrical connection of pressure sensitive unit, the second end of the 3rd inductive reactance and the first of the 4th inductive reactance End electrically connects with the 4th end of the pressure sensitive unit.
  9. 9. according to the display panel described in claim any one of 1-7, it is characterised in that the pressure sensitive unit is in four sides Shape, be made up of semi-conducting material, including first be oppositely arranged while and when second, and the 3rd side being oppositely arranged and the 4th Side；
    First end, the second end, the 3rd end and the 4th end of the pressure sensitive unit are respectively positioned at first side, described second While, it is described 3rd while and the 4th side.
  10. 10. display panel according to claim 1, it is characterised in that after pressure touch abnormality detection, the pressure Electrical connection between 3rd end of sensing unit and the 3rd calibrating terminal is cut off, the 4th end of the pressure sensitive unit Electrical connection between the 4th calibrating terminal is cut off.
  11. 11. a kind of display device, it is characterised in that including the display panel described in claim any one of 1-10.
  12. 12. a kind of detection method of display panel, it is characterised in that for display panel as claimed in claim 1, its feature It is,
    In the pressure touch abnormality detection stage,
    To the first calibrating terminal input test signal, in i-th of first switch unit and i-th of second switch When unit turns on, the signal of second calibrating terminal is received respectively, the signal of the 3rd calibrating terminal and the described 4th is surveyed The signal of terminal is tried, according to the signal of second calibrating terminal, the signal of the 3rd calibrating terminal and the 4th test At least one of signal of terminal determines the unusual condition of i-th of pressure sensitive unit；
    Or to the second calibrating terminal input test signal, in i-th of first switch unit and i-th described During two switching means conductives, the signal of first calibrating terminal, the signal of the 3rd calibrating terminal and described are received respectively The signal of 4th calibrating terminal, according to the signal of first calibrating terminal, the signal of the 3rd calibrating terminal and described At least one of signal of four calibrating terminals determines the unusual condition of i-th of pressure sensitive unit.
  13. 13. detection method according to claim 12, it is characterised in that also including n the 3rd switch elements, n the individual 4th Switch element and the 5th calibrating terminal；3rd end of the pressure sensitive unit passes through the 3rd switch element and described the Three calibrating terminals electrically connect；4th end of the pressure sensitive unit passes through the 4th switch element and the 4th test lead Son electrical connection；
    Wherein, the 3rd end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 3rd switch element, 4th end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 4th switch element；Each described 3rd Second end of switch element electrically connects with the 3rd calibrating terminal, the second end and the described 4th of each 4th switch element Calibrating terminal electrically connects；
    The control terminal of each 3rd switch element and the control terminal of each 4th switch element and the 5th calibrating terminal Electrical connection；
    In the pressure touch abnormality detection stage, the first control signal is inputted to the 5th calibrating terminal, the 3rd switch is single First and described 4th switching means conductive；
    To the first calibrating terminal input test signal, if the signal of second calibrating terminal, the 3rd test lead The amplitude of the signal of son and the signal of the 4th calibrating terminal is more than first threshold and is less than the amplitude of the test signal, then I-th of pressure sensitive unit is normal；If the signal of the signal of second calibrating terminal, the 3rd calibrating terminal or The amplitude of the signal of 4th calibrating terminal is equal to the amplitude of the test signal, then i-th of pressure sensitive unit goes out Existing short circuit；If the signal of second calibrating terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal The amplitude of signal is equal to zero, then open circuit occurs in i-th of pressure sensitive unit；If the signal of second calibrating terminal, The amplitude of the signal of 3rd calibrating terminal or the signal of the 4th calibrating terminal is more than and zero and is less than Second Threshold, then and the There is high-impedance state in the i pressure sensitive units；
    To the second calibrating terminal input test signal, if the signal of first calibrating terminal, the 3rd test lead The amplitude of the signal of son and the signal of the 4th calibrating terminal is more than or equal to and first threshold and is less than or equal to Second Threshold, then and the The i pressure sensitive units are normal；If the signal of first calibrating terminal, the signal of the 3rd calibrating terminal or institute The amplitude for stating the signal of the 4th calibrating terminal is more than the Second Threshold and less than or equal to the amplitude of the test signal, then and i-th There is short circuit in the individual pressure sensitive unit；If the signal of the signal of first calibrating terminal, the 3rd calibrating terminal Or the amplitude of the signal of the 4th calibrating terminal is equal to zero, then there is open circuit in i-th of pressure sensitive unit；It is if described The amplitude of the signal of the signal of first calibrating terminal, the signal of the 3rd calibrating terminal or the 4th calibrating terminal is more than zero And being less than the first threshold, then there is high-impedance state in i-th of pressure sensitive unit.
  14. 14. detection method according to claim 13, it is characterised in that the display panel also includes the 6th test lead Son, n the 5th switch element and n the 6th switch elements；
    The first end of i-th of the 5th switch element electrically connects with the first end of i-th of pressure sensitive unit, i-th Second end of the 5th switch element electrically connects with first calibrating terminal, the control terminal of each 5th switch element with The 6th calibrating terminal electrical connection；
    Second end of i-th of the 6th switch element electrically connects with the second end of i-th of pressure sensitive unit, i-th The first end of 6th switch element electrically connects with second calibrating terminal, the control terminal of each 6th switch element with The 6th calibrating terminal electrical connection；
    The detection method also includes：
    In the pressure touch abnormality detection stage, the second control signal is inputted to the 6th calibrating terminal, control described the Five switch elements and the 6th switch element shut-off.
  15. 15. detection method according to claim 14, it is characterised in that the display panel also includes the 7th calibrating terminal With n the 7th switch elements；
    The control terminal of each first switch unit and the control terminal of second switch unit pass through the 7th switch element Electrically connected with the trigger signal output end of corresponding scanning element；
    Wherein, the first end of i-th of the 7th switch elements and the control terminal and i-th of second switch of i-th of first switch unit The control terminal electrical connection of unit, the scanning corresponding with i-th of first switch unit of the second end of i-th of the 7th switch elements The trigger signal output end electrical connection of unit, the control terminal of i-th of the 7th switch elements electrically connect with the 7th calibrating terminal；
    The detection method also includes：
    In the pressure touch abnormality detection stage, the first control signal is inputted to the 7th calibrating terminal, the 7th switch is single Member conducting.
  16. 16. detection method according to claim 15, it is characterised in that in the normally display stage, to the described 5th test Terminal and the 7th calibrating terminal input the second control signal, the 3rd switch element, the 4th switch element and institute State the shut-off of the 7th switch element；Input the first control signal to the 6th calibrating terminal, control the 5th switch element and 6th switching means conductive.
  17. 17. a kind of detection method of display panel, it is characterised in that for display panel as claimed in claim 1, its feature It is,
    In the pressure touch abnormality detection stage
    In i-th of first switch unit and i-th of second switch unit conducting, the first calibrating terminal and the are detected The resistance and described between resistance, first calibrating terminal and the 3rd calibrating terminal between two calibrating terminals At least one of resistance between two calibrating terminals and the 3rd calibrating terminal, determine i-th of pressure sensitive unit Unusual condition.
  18. 18. detection method according to claim 17, it is characterised in that the display panel also includes：N the 3rd switch Unit, n the 4th switch elements and the 5th calibrating terminal；3rd end of the pressure sensitive unit passes through the described 3rd switch Unit electrically connects with the 3rd calibrating terminal；4th end of the pressure sensitive unit passes through the 4th switch element and institute State the electrical connection of the 4th calibrating terminal；
    Wherein, the 3rd end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 3rd switch element, 4th end of i-th of pressure sensitive unit electrically connects with the first end of i-th of the 4th switch element；Each described 3rd Second end of switch element electrically connects with the 3rd calibrating terminal, the second end and the described 4th of each 4th switch element Calibrating terminal electrically connects；
    The control terminal of each 3rd switch element and the control terminal of each 4th switch element and the 5th calibrating terminal Electrical connection；
    6th calibrating terminal, n the 5th switch elements and n the 6th switch elements；
    The first end of i-th of the 5th switch element electrically connects with the first end of i-th of pressure sensitive unit, i-th Second end of the 5th switch element electrically connects with first calibrating terminal, the control terminal of each 5th switch element with The 6th calibrating terminal electrical connection；
    Second end of i-th of the 6th switch element electrically connects with the second end of i-th of pressure sensitive unit, i-th The first end of 6th switch element electrically connects with second calibrating terminal, the control terminal of each 6th switch element with The 6th calibrating terminal electrical connection；
    The detection method also includes：
    In the pressure touch abnormality detection stage, the second control signal is inputted to the 6th calibrating terminal, control described the Five switch elements and the 6th switch element shut-off.
  19. 19. detection method according to claim 18, it is characterised in that the display panel also includes the 7th calibrating terminal With n the 7th switch elements；
    The control terminal of each first switch unit and the control terminal of second switch unit pass through the 7th switch element Electrically connected with the trigger signal output end of corresponding scanning element；
    Wherein, the first end of i-th of the 7th switch elements and the control terminal and i-th of second switch of i-th of first switch unit The control terminal electrical connection of unit, the scanning corresponding with i-th of first switch unit of the second end of i-th of the 7th switch elements The trigger signal output end electrical connection of unit, the control terminal of i-th of the 7th switch elements electrically connect with the 7th calibrating terminal；
    The detection method also includes：
    In the pressure touch abnormality detection stage, the first control signal is inputted to the 7th calibrating terminal, the 7th switch is single Member conducting；
    In the normally display stage, the second control signal is inputted to the 5th calibrating terminal and the 7th calibrating terminal, it is described 3rd switch element, the 4th switch element and the 7th switch element shut-off；To the 6th calibrating terminal input the One control signal, control the 5th switch element and the 6th switching means conductive.
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