CN108572470A - A kind of electrical measurement fixture and its control method - Google Patents
A kind of electrical measurement fixture and its control method Download PDFInfo
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- CN108572470A CN108572470A CN201810374544.2A CN201810374544A CN108572470A CN 108572470 A CN108572470 A CN 108572470A CN 201810374544 A CN201810374544 A CN 201810374544A CN 108572470 A CN108572470 A CN 108572470A
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- 238000005259 measurement Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 41
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 10
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- 238000009825 accumulation Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 26
- 206010044565 Tremor Diseases 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 10
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 102100026658 Cathepsin W Human genes 0.000 description 2
- 101000910988 Homo sapiens Cathepsin W Proteins 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of electrical measurement fixture and its control methods, are related to test equipment designs technical field, for solving the problems, such as the panel caused by lower electrical anomaly in follow-up test or being assembled into after product the when of opening display and occur trembling screen phenomenon.The electrical measurement fixture, including：Pedestal, pedestal have placed side；Press part, press part is equipped with pogo pin, and pogo pin is located at the top of placed side, and the connecting portion in press part is in the direction moving process of placed side, connecting portion can be moved to operating position by first position, and connecting portion is the position being connected with pogo pin in press part；Controller, controller include the first signal output end, and the first signal output end is electrically connected with pogo pin, and controller is used for during press part is moved from operating position to first position, and discharge signal is exported by the first signal output end.The present invention can be used for the lighting test of panel (cell).
Description
Technical field
The present invention relates to test equipment technical field more particularly to a kind of electrical measurement fixture and its control methods.
Background technology
Currently, being directed to display device, such as liquid crystal display panel, usually require to carry out electrical property to it in the fabrication process
It can detect, detecting qualified product can go in next process.The electric property of the products such as liquid crystal display panel
Detection (such as lighting test of cell) is typically to be carried out on electrical measurement fixture, and whether electrical measurement fixture design is reasonable, directly
Connect the display quality for being related to display device.
Existing electrical measurement fixture over there plate (cell) lighting test when, be the signal input point by probe and panel
(cell ET Pad points, also referred to as electromotive checking point) is in contact, then by probe to panel input test signal；It is testing
After, it is L in panel0When picture (completely black picture), the signal input point of probe and panel is separated, to complete panel
Lighting test.
However, during actual test, it often will appear lower electrical anomaly, such as panel (panel in test
Show non-L0When picture), the signal input point phase separation of probe and panel, after the two separation, due to filling during the test
Enter pixel electrode still presence after probe is detached with the signal input point of panel with the charge on public electrode to panel, this
Sample, remaining charge will make to generate pressure difference between pixel electrode and public electrode, to make to be located at pixel electrode and common electrical
Liquid crystal molecule between pole causes liquid crystal molecule to generate polarization for a long time to an angular deflection, when the panel carries out subsequent point
It when lamp test or is assembled into after product the when of opening display and just will appear and tremble screen phenomenon, greatly reduce the display of display panel
Quality.
Invention content
A kind of electrical measurement fixture of the embodiment of the present invention offer and its control method, for solving caused by lower electrical anomaly
Panel in follow-up test or be assembled into after product the when of opening display and the problem of trembling screen phenomenon occur.
In order to achieve the above objectives, in a first aspect, an embodiment of the present invention provides a kind of electrical measurement fixtures, including：Pedestal, it is described
There is pedestal placed side, the placed side to be used to place detected panel, further include：Press part, the press part, which is equipped with, stretches
Contracting probe, the pogo pin can make elastic telescopic along the axial direction of the pogo pin, and the pogo pin is located at the placement
The top in face, the connecting portion in the press part can be moved to the direction close to or far from the placed side, in the company
To in the direction moving process of the placed side, the connecting portion can be moved to working position by first position for socket part position
It sets, the connecting portion is the position being connected with the pogo pin in the press part；The first position is described stretches
The critical localisation that contracting probe is in contact with the signal input point on detected panel；Controller, the controller include the first letter
Number output end, first signal output end are electrically connected with the pogo pin, and the controller is used in the connecting portion
During being moved from the operating position to the first position, discharge signal is exported by first signal output end；
The discharge signal is used to discharge the charge of the detected panel itself accumulation by the pogo pin.
Further, further include trigger member, the trigger member in the connecting portion by the operating position for being moved
To during the first position, when the connecting portion is in the second position, the controller is triggered by described the
One signal output end exports the discharge signal.
Further, the trigger member includes being separated by the first electrically conducting contact and the second electrically conducting contact of setting, institute
It states the first electrically conducting contact and second electrically conducting contact is connect with the controller, when the connecting portion is in described
When the second position, first electrically conducting contact is electrically connected with second electrically conducting contact；The controller is for detecting
When being electrically connected to the first electrically conducting contact and the second electrically conducting contact, the electric discharge is exported by first signal output end and is believed
Number.
Further, the controller further includes ground terminal and second signal output end, the second signal output end
For exporting high level signal after controller unlatching；First electrically conducting contact is electrically connected with the ground terminal, institute
The second electrically conducting contact is stated to be electrically connected with the second signal output end, when the connecting portion is in the second position,
First electrically conducting contact is electrically connected with second electrically conducting contact, and the controller is for detecting the second signal
When the high level signal of output end is pulled low, the discharge signal is exported by first signal output end.
Further, first signal output end includes：Grid control terminal, common signal control terminal and data-signal
Control terminal；The discharge signal includes first control signal, second control signal and third control signal, the first control letter
Number believe for the control for simultaneously opening the grids of all pixels of the detected panel of grid control terminal output
Number；The second control signal is used for for common signal control terminal output by the electric position of the public electrode of all pixels
For the control signal of 0V；The third control signal is used for for data-signal control terminal output by the pixel of all pixels
The current potential of electrode is set to the control signal of 0V.
Further, further include operating mechanism, the operating mechanism includes pressure head, and the pressure head is rotationally connected with described
On pedestal, during the pressure head is rotated relative to the pedestal, the pressure head can push the press part along close to described
The direction of placed side is moved, so that the connecting portion is moved to the operating position；The press part is connected with return unit, institute
The reset force moved along the direction far from the placed side can be provided to the press part by stating return unit.
Further, further include ground terminal and second signal output end in the controller, the trigger member includes the
In the case of one electrically conducting contact and the second electrically conducting contact, first electrically conducting contact and second electrically conducting contact are equal
It is set in the press part, when the connecting portion is in the second position, the pressure head is conductive with described first
Contact site, second electrically conducting contact are in contact, so that first electrically conducting contact and second electrically conducting contact electricity
Connection.
Second aspect, the embodiment of the present invention additionally provide a kind of control method of electrical measurement fixture, and the electrical measurement fixture includes
Pedestal and press part, the pedestal have placed side, and the placed side is for placing detected panel；The press part is equipped with
Pogo pin, the pogo pin can make elastic telescopic along the axial direction of the pogo pin, and the pogo pin is located at described put
The top in face is set, the connecting portion in the press part can be moved to the direction close to or far from the placed side, described
For connecting portion in the direction moving process of the placed side, the connecting portion can be moved to working position by first position
It sets, the connecting portion is the position being connected with the pogo pin in the press part；The first position is described stretches
The critical localisation that contracting probe is in contact with the signal input point on detected panel；The control method of the electrical measurement fixture includes：
During the connecting portion is moved to operating position by first position, discharge signal is exported, the discharge signal is used for
The charge of the detected panel itself accumulation is discharged by the pogo pin.
Further, the discharge signal includes that first control signal, second control signal and third control signal, described
First control signal is for simultaneously opening the grid of all pixels of the detected panel；The second control signal is used for
The current potential of the public electrode of all pixels is set to 0V；The third control signal is used for the electricity of the pixel electrode of all pixels
Position is 0V；During the connecting portion in the press part is moved to operating position by first position, output electric discharge letter
It number specifically includes：Export the first control signal, the second control signal and third control signal.
Further, the discharge signal further includes grid reset signal, and the grid reset signal will be for that will own
The output control signal of GOA driving circuits is set to 0V；It is further comprising the steps of before exporting the first control signal：It is defeated
Go out the grid reset signal.
Electrical measurement fixture provided in an embodiment of the present invention and its control method, since the connecting portion in press part is to close
In the direction moving process of placed side, connecting portion can be moved to operating position by first position, and first position is flexible
The critical localisation that probe is in contact with the signal input point on detected panel, in this way, connecting portion is moved by operating position
To first position, or during being moved to operating position by first position, the pogo pin letter with detected panel always
Number input point is in contact；Again since controller is used for during connecting portion is moved from operating position to first position, lead to
Cross the first signal output end output discharge signal；Since controller is used to be moved from operating position to first position in connecting portion
During, discharge signal is exported by the first signal output end, in this way, in electrical detection (such as lighting detection) mistake of panel
Cheng Zhong, if press part is lifted, during press part is lifted, that is, connecting portion is put by operating position along separate
Set face direction movement during, controller can the first signal output end export discharge signal, using connecting portion in work
The a period of time (this period that pogo pin is also still in contact with signal input point) being moved in first position as position,
The charge that panel itself accumulates during the test is discharged by pogo pin to the outside of panel, the pixel electricity of such panel
The pressure difference of pole and public electrode will be reduced to 0V because of the release of charge, the liquid crystal between pixel electrode and public electrode point
Son would not generate polarization, therefore, can when opening display when the panel follow-up lighting test of progress or after being assembled into product
To avoid there is the phenomenon that trembling screen, so as to improve the display quality of display panel.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the perspective view of electrical measurement fixture in the embodiment of the present invention；
Fig. 2 is the side view of electrical measurement fixture in the embodiment of the present invention；
Fig. 3 is the GOA driving circuit figures that panel is detected in the embodiment of the present invention；
Fig. 4 is that the oscillogram that electrical measurement fixture controller exports in the embodiment of the present invention (is defeated in lower electric process in dotted line frame
The oscillogram of the signal gone out；Wherein, the VGH Chinese meaning is high level；The Keep VGH Chinese meaning is holding high level；In VGL
The text meaning is low level；The Keep VGL Chinese meaning is holding low level；The GND Chinese meaning is ground connection；Keep GND Chinese is anticipated
Think to keep ground connection；The Normal Display Chinese meaning is normal display；The Normal Power Off Chinese meaning is normal
Lower electricity, or normal power down)；
Fig. 5 be in the embodiment of the present invention under electrical measurement fixture in electric process control method flow chart.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is right
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Term " first ", " second " are used for description purposes only, be not understood to indicate or imply relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
In a first aspect, an embodiment of the present invention provides a kind of electrical measurement fixtures, as shown in Figure 1, including：Pedestal 1, pedestal 1 have
There is placed side 11, placed side 11 is for placing detected panel, wherein placed side 11 can be the card slot being opened on pedestal 1
Slot bottom；Press part 2, press part 2 are equipped with pogo pin 3, and pogo pin 3 can make elastic telescopic along the axial direction of pogo pin 3,
As shown in Fig. 2, pogo pin 3 is located at the top of placed side 11, the connecting portion 21 in press part 2 can be put to close to or far from
The direction movement for setting face 11, in connecting portion 21 into the direction moving process close to placed side 11, connecting portion 21 can be by the
One position is moved to operating position, and connecting portion 21 is the position being connected with pogo pin 3 in press part 2, that is, is pressed
The position being in contact with pogo pin 3 on part 2；First position is pogo pin 3 and the signal input point phase on detected panel
The critical localisation of contact, for example, shown in Fig. 2, when first position is that pressure head 51 is in contact with the positions A in press part 2, press part 2
On the location of connecting portion 21, the beginning of pogo pin 3 at this time is in contact with the signal input point on detected panel；Work
It is pressure head 51 when being in contact with the positions C in press part 2 to make position, 21 location of connecting portion；Controller (Program,
Abbreviation PG), controller includes the first signal output end, and the first signal output end is electrically connected with pogo pin 3, and controller is used for
During connecting portion 21 is moved from operating position to first position, discharge signal is exported by the first signal output end；It puts
Electric signal is for discharging the charge that detected panel itself accumulates by pogo pin 3.
Electrical measurement fixture provided in an embodiment of the present invention, since the connecting portion 21 in press part 2 is to close to placed side 11
Direction moving process in, connecting portion 21 can be moved to operating position by first position, and first position is pogo pin 3
The critical localisation being in contact with the signal input point on detected panel, in this way, connecting portion 21 is moved to by operating position
First position, or during being moved to operating position by first position, the signal with detected panel always of pogo pin 3
Input point is in contact；Again since controller is used for during connecting portion 21 is moved from operating position to first position, lead to
Cross the first signal output end output discharge signal；Since controller is used to be moved from operating position to first position in connecting portion 21
In dynamic process, discharge signal is exported by the first signal output end, in this way, in the electrical detection (such as lighting detection) of panel
In the process, if press part 2 is lifted, during press part 2 is lifted, that is, connecting portion 21 is by operating position edge
Be located remote from 11 direction of face movement during, controller can the first signal output end export discharge signal, utilize connection
A period of time that position 21 is moved in operating position in first position, (pogo pin 3 was also still in contact with signal input point
This period), the charge that panel itself is accumulated during the test is discharged by pogo pin 3 to the outside of panel, this
The pixel electrode of sample panel and the pressure difference of public electrode will be reduced to 0V because of the release of charge, be located at pixel electrode and common electrical
Liquid crystal molecule between pole would not generate polarization, therefore, when panel carries out follow-up lighting test or after being assembled into product
The phenomenon that trembling screen can be avoided the occurrence of when opening display, so as to improve the display quality of display panel.
During connecting portion 21 is moved from operating position to first position, controller is made to pass through first signal
The mode that output end exports discharge signal is not unique, for example, can directly be passed through come trigger controller by trigger member 4 described
First signal output end exports discharge signal, as shown in Figure 1, electrical measurement fixture provided in an embodiment of the present invention further includes trigger member 4,
Trigger member 4 is used for during connecting portion 21 is moved to first position by operating position, when connecting portion 21 is in second
When position, trigger controller exports discharge signal by the first signal output end, utilizes connecting portion 21 by the second position in this way
It is moved in this period of first position, being detected the charge of panel itself accumulation can be discharged extremely by pogo pin 3
The outside of panel.In addition, controller can also be made to pass through the first signal output end output electric discharge by way of the time is arranged
Specifically a position sensor is arranged in signal, which is connected with controller, is arranged one in advance to controller
If the time (preset time is less than connecting portion 21 and is moved to time of first position by operating position), connecting portion 21 from
When opening operating position, position sensor sends signal to controller, and the timer on controller starts timing, when reaching default
Between when, controller by first signal output end export discharge signal, the charge that detected panel itself accumulates is led to
The release of pogo pin 3 is crossed to the outside of panel.
In 4 trigger controller of trigger member exports the embodiment of discharge signal by first signal output end, triggering
The structure type of part 4 is not unique, for example, trigger member 4 can be following structure：As shown in Figure 1, trigger member 4 includes being separated by set
The first electrically conducting contact 41 and the second electrically conducting contact 42 set, the first electrically conducting contact 41 and the second electrically conducting contact 42 with
Controller connects, and when connecting portion 21 is in the second position, the first electrically conducting contact 41 is electrically connected with the second electrically conducting contact 42
It connects；Controller is used to, when detecting that the first electrically conducting contact 41 and the second electrically conducting contact 42 are electrically connected, pass through the first signal
Output end exports discharge signal.In addition, trigger member 4 can also be close to switch, close to switch setting in the second place, when even
When socket part position 21 is in the second position, close to inductive switching to the arrival of press part 2, and signal, controller are sent to controller
For receiving close to after the transmitted signal of switch, discharge signal is exported by the first signal output end.Compared to trigger member 4
To approach the embodiment of switch, in the embodiment shown in fig. 1, trigger member 4 includes being separated by the first electrically conducting contact 41 of setting
Relatively simple for structure in this way with the second electrically conducting contact 42, price is also cheaper than fitting switch, is conducive to save electrical measurement fixture
Totle drilling cost.
Include being separated by the first electrically conducting contact 41 of setting and the embodiment of the second electrically conducting contact 42 in trigger member 4,
It is also not unique for detecting mode that whether the first electrically conducting contact 41 and the second electrically conducting contact 42 are electrically connected, for example, can be with
It is detected by the current potential height with signal, it is specific as follows：Controller further includes ground terminal (Ground, guide number D) and second
Signal output end (such as I/O mouthfuls), second signal output end are used to export high level signal after controller unlatching, the high level
Signal is the signal more than 0V；First electrically conducting contact 41 is electrically connected with ground terminal, the second electrically conducting contact 42 and second signal
Output end is electrically connected, when connecting portion 21 is in the second position, 42 electricity of the first electrically conducting contact 41 and the second electrically conducting contact
Connection, it is defeated by the first signal output end when controller is used to detect that the high level signal of second signal output end is pulled low
Go out discharge signal.It is specific as follows alternatively, it is also possible to be detected by short-circuit detecting circuit, short-circuit detecting is set in controller
Circuit, such as the short-circuit detecting circuit may include the power supply for connecting into circuit, first resistor and second resistance, and first is conductive
Contact site 41 and the second electrically conducting contact 42 are connected to the both ends of second resistance, when connecting portion 21 is in the second position
When, the first electrically conducting contact 41 is electrically connected with the second electrically conducting contact 42, and controller is used to detect the electricity at first resistor both ends
When pressure is drawn high, discharge signal is exported by the first signal output end.
In electrical measurement fixture provided in an embodiment of the present invention, the first signal output end may include：It is grid control terminal, public
Signal control terminal and data-signal control terminal；Discharge signal may include first control signal, second control signal and third
Signal is controlled, first control signal is the output of grid control terminal for simultaneously beating the grid of all pixels of detected panel
The control signal opened；Such as shown in Fig. 3, which is GOA (Gate Driver on Array, the Chinese paraphrase for being detected panel：
Array substrate gate driving) driving circuit, the first control signal signal that GOA driving circuits export in order to control, such as STV, CN,
The signals such as CNB, CLK, VGL, EN_touch, Reset (such as shown in Fig. 3) and the pixel electrode CTD letters for controlling RGB sub-pixels
Number open MUXR, MUXG, MUXB signal (such as shown in Fig. 4)；Second control signal is the use of common signal control terminal output
The Vcom of current potential in the control signal that the current potential of the public electrode of all pixels is set to 0V, such as controlling public electrode
The CTSW/CTSW_Vcom signals (such as shown in Fig. 4) of change-over switch on signal, and control Vcom signal wires, wherein CTSW/
When CTSW_Vcom signals are high level (+8V), which is used to make Vcom signal wires and detected face on electrical measurement fixture
Signal input point electrical connection on plate；Third controls signal and is used for the pixel of all pixels for the output of data-signal control terminal
The current potential of electrode is set to the control signal of 0V, for example, the current potential for controlling pixel electrode CTD signals.Connecting portion 21 by
During operating position is moved to first position, such as when being moved to the second position, controller controls common signal control terminal
Second control signal is exported, the current potential of the public electrode of all pixels is set to 0V, such as shown in Fig. 4 (in figure in dotted line frame
For the oscillogram of each signal of lower electric process), Vcom signals are set to 0V；Data-signal control terminal exports third and controls signal,
The current potential of the pixel electrode of all pixels is set to 0V；Such as shown in Fig. 4, by CTD_ODD (for controlling odd column pixel electricity
The signal of the current potential height of pole), the signals (signal of the current potential height for controlling even column pixels electrode) such as CTD_EVEN set
For 0V；It controls grid control terminal and exports first control signal, the grid of all pixels of detected panel to be opened simultaneously, example
As shown in figure 4, by STV, CLK, VGL_G (the VGL signals in GOA driving circuits shown in corresponding diagram 3), EN_touch, MUXR,
The current potential of the signals such as MUXG, MUXB is drawn high and (is set to+8V), in this way, being detected institute on the pixel electrode and public electrode of panel
The charge of accumulation can be obtained by quick release.
Wherein, controller can export first control signal, second control signal and third control signal simultaneously, can also
Before exporting first control signal, exports second control signal and third controls signal, be not specifically limited herein.
It should be noted that：It is detected panel and passes through the first signal output end in detection and the process of lower electricity, controller
Further include the VGH_E and VGL_E that control is detected that static discharge unit (ESD units) is opened in panel in the signal exported
Signal (such as shown in Fig. 4), wherein static discharge unit be for the height of restriction controller institute input signal current potential, such as
The signal that controller is inputted is limited between -8V~+8V.
The grid of all pixels of detected panel is opened simultaneously for the ease of controller, the electric discharge that controller is exported
Signal further includes grid reset signal, and controller is used for before exporting first control signal, and grid are exported by grid control terminal
Pole reset signal, grid reset signal is used to the output control signal of all GOA driving circuits being set to 0V, multiple in grid in this way
The grid of all pixels is in the state closed after the signal output of position, to after facilitating controller to export first control signal by institute
There is the grid of pixel to open simultaneously, ensures that controller is smooth in the state opened line by line by output slab test signal control grid
It is switched to the state that output first control signal will open simultaneously the grid of all pixels, and simultaneously by the grid of all pixels
It opens, all pixels can be made while being discharged, be conducive to the discharge time for shortening panel.
Wherein, the output of GOA driving circuits controls signal, and the current potential for exactly controlling the output signal of GOA driving circuits is high
Low control signal, such as shown in Fig. 3, the output control signal of GOA driving circuits is STV, CN, CNB, CLK, VGL, EN_
The signals such as touch, Reset.
In electrical measurement fixture provided in an embodiment of the present invention, drive the connecting portion 21 in press part 2 to close to placed side 11
Direction movement mode it is not unique, for example can be driven by operating mechanism 5, as shown in Fig. 2, the embodiment of the present invention carries
The electrical measurement fixture of confession further includes operating mechanism 5, and operating mechanism 5 includes pressure head 51, and pressure head 51 is rotationally connected on pedestal 1,
For pressure head 51 relative to during pedestal 1 rotates, pressure head 51 can push press part 2 mobile to the direction close to placed side 11 so that even
Socket part position 21 is moved to operating position；Press part 2 is connected with return unit 6, and return unit 6 can provide edge to press part 2 and be located remote from
The reset force of the direction movement in face 11.Wherein, return unit 6 can be spring.In power up, pressure head is rotated in one direction
51, press part 2 drives pogo pin 3 to be moved to operating position to close to the direction of placed side 11 under the promotion of pressure head 51,
By the position locking of pressure head 51 so that press part 2 is maintained at operating position under the action of limit lock piece；During lower electricity,
Limit lock piece is released into locking, then rotates pressure head 51 towards other direction, press part 2 is under the action of reset force by working position
It sets to the direction in the face that is located remote from 11 and moves.Alternatively, it is also possible to drive press part 2 to the direction close to placed side 11 by manually
It is mobile, when being moved to operating position, press part 2 is limited in operating position by limiting lock piece.Compared to manual, pass through behaviour
Make mechanism 5 to drive press part 2 to move, can more control held stationary in 2 moving process of press part, while passing through operating mechanism 5
To drive 2 movement of press part that operating process can also be made more laborsaving time saving.
In the embodiment that electrical measurement fixture provided in an embodiment of the present invention includes operating mechanism 5, connecting portion 21 to by
In the moving process of nearly placed side 11, operating mechanism 5 in addition to press part 2 can be driven to be moved along close to the direction of placed side 11,
So that connecting portion 21 is moved to except operating position, operating mechanism 5 can also drive press part 2 to be rotated relative to pedestal 1, so that
Connecting portion 21 is moved to operating position, specific as follows：Press part 2 is rotatablely connected by shaft and pedestal 1, and operating mechanism 5 wraps
The rotational handle for including the drive shaft being connected with shaft and being connected with drive shaft, operator can drive pressure by rotational handle
Component 2 rotates, to which connecting portion 21 can just moved to the direction far from or close to placed side 11.Operating mechanism 5 drives
The movement of dynamic pressure component 5 or rotation can be herein not specifically limited depending on specific actual conditions.
In the embodiment that electrical measurement fixture provided in an embodiment of the present invention includes operating mechanism 5, the first electrically conducting contact 41
It is also not unique with the installation position of the second electrically conducting contact 42, for example, as shown in Figure 1, the first electrically conducting contact 41 is led with second
Electrical contacts 42 can may be contained in press part 2, and when connecting portion 21 is in the second position, pressure head 51 is conductive with first
Contact site 41, the second electrically conducting contact 42 are in contact, so that the first electrically conducting contact 41 and the electrical connection of the second electrically conducting contact 42,
Namely the contact position of pressure head 51 and press part 2 by C during being moved to A, when the contact position of pressure head 51 and press part 2
When setting at B, pressure head 51 is in contact with the first electrically conducting contact 41, the second electrically conducting contact 42, so that the first conductive contact
Portion 41 and the electrical connection of the second electrically conducting contact 42.In addition, the first electrically conducting contact 41 can be arranged with the second electrically conducting contact 42
In on pedestal 1, and the opposite both sides of press part 2 are respectively arranged at, being respectively arranged with first on the opposite both sides of press part 2 leads
Electric piece and the second conductive sheet, the first conductive sheet and the electrical connection of the second conductive sheet, when connecting portion 21 is in the second position, first
Electrically conducting contact 41 is in contact with the first conductive sheet, and the second electrically conducting contact 42 is in contact with the second conductive sheet, so that first leads
Electrical contacts 41 and the electrical connection of the second electrically conducting contact 42.It is arranged compared to the first electrically conducting contact 41 and the second electrically conducting contact 42
In on pedestal 1, and it is respectively arranged at the embodiment of the opposite both sides of press part 2, in embodiment shown in Fig. 1, first leads
Electrical contacts 41 and the second electrically conducting contact 42 may be contained in press part 2, and are realized and be electrically connected by pressure head 51, set in this way
Set that structure is compacter, the first electrically conducting contact 41 and the second electrically conducting contact 42 do not occupy the space outside press part 2 additionally.
Pressure head 51 is rotated in order to facilitate the operation, as shown in Figure 1, being connected with handle 52 on pressure head 51, handle 52 can drive
Pressure head 51 is rotated relative to pedestal 1.Operator can be made more convenient during driving press part 2 to move by the way that handle 52 is arranged
With it is laborsaving.
Wherein, pressure head 51 can be wedge block (such as shown in Fig. 2), or cam is not specifically limited herein.
In the power up before the detection for being detected panel starts, in order to ensure in pogo pin 3 and detected panel
On signal input point be in contact it is backward be detected panel input panel test signal, controller is additionally operable in connecting portion 21
During being moved to operating position by first position, pass through the first signal output end output slab test signal, such as Fig. 2 institutes
Show, during connecting portion 21 is moved to first position by operating position, when connecting portion 21 is in the second position, the
One electrically conducting contact 41 is electrically connected with the second electrically conducting contact 42, that is, pressure head 51 and the contact position of press part 2 are moved by A
During moving C, when the contact position of pressure head 51 and press part 2 is located at B, pressure head 51 and the first electrically conducting contact 41,
Second electrically conducting contact 42 is in contact, so that the first electrically conducting contact 41 and the electrical connection of the second electrically conducting contact 42；Controller is used
In when detecting that the first electrically conducting contact 41 and the second electrically conducting contact 42 are electrically connected, pass through the first signal output end output face
Board test signal, such electrical measurement fixture can carry out lighting test to being detected panel, functionality carried out not with detection panel
Good detection.
It should be noted that：The electrical measurement fixture is in the company to being detected during panel powers on and is lower electric in press part 2
Socket part position 21 is required to by a second position, and controller can be by judging the number of 4 trigger controller of trigger member come really
Determine output slab test signal or discharge signal, such as when trigger member 4 first time trigger controller, controller output face
Board test signal；When 4 second of trigger controller of trigger member, controller exports discharge signal.
Electrical measurement fixture provided in an embodiment of the present invention, primarily directed to no binding IC (integrated circuit, in
Literary paraphrase：Integrated circuit), FPC (Flexible Printed Circuit, Chinese paraphrase：Flexible PCB) etc. components face
Plate (cell) carries out lighting detection.Pogo pin 3 in the electrical measurement fixture can be spring probe, can also be that other can produce
The probe of raw elastic telescopic, is not specifically limited herein；
Second aspect, an embodiment of the present invention provides a kind of control method of electrical measurement fixture, the electrical measurement fixtures：Such as Fig. 1 institutes
Show, including pedestal 1 and press part 2, pedestal 1 has placed side 11, and placed side 11 is for placing detected panel；In press part 2
Equipped with pogo pin 3, pogo pin 3 can make elastic telescopic along the axial direction of pogo pin 3, as shown in Fig. 2, pogo pin 3 is located at
The top of placed side 11, connecting portion 21 in press part 2 can connected to close or be located remote from the direction in face 11 and move
Into the direction moving process close to placed side 11, connecting portion 21 can be moved to operating position by first position at position 21, even
Socket part position 21 is the position being connected with pogo pin 3 in press part 2；First position is on pogo pin 3 and detected panel
The critical localisation that is in contact of signal input point；
The control method of the electrical measurement fixture includes：The process of operating position is moved to by first position in connecting portion 21
In, discharge signal is exported, discharge signal is for discharging the charge that detected panel itself accumulates by pogo pin 3.
Wherein, the main body for executing the above control method can be controller, or other components are not done specific herein
It limits.
The control method of electrical measurement fixture provided in an embodiment of the present invention and the electrical measurement fixture described in first aspect are solved
The technical issues of and generation technique effect all same, details are not described herein.
In above-mentioned control method embodiment, discharge signal includes first control signal, second control signal and third control
Signal processed, first control signal is for simultaneously opening the grid of all pixels of detected panel；Second control signal is used for
The current potential of the public electrode of all pixels is set to 0V；Third controls signal and is used for the electric position of the pixel electrode of all pixels
For 0V；
As shown in figure 5, during connecting portion 21 is moved to operating position by first position, output discharge signal tool
Body includes：S102, output first control signal, second control signal and third control signal.
Wherein, first control signal, second control signal and third control signal can export simultaneously, can also export
Before first control signal, exports second control signal and third controls signal, be not specifically limited herein.
In the control method of electrical measurement fixture provided in an embodiment of the present invention, discharge signal further includes reset signal, resets letter
Number for the output of all GOA driving circuits control signal to be set to 0V；
During connecting portion 21 is moved to operating position by first position, before exporting first control signal,
It is further comprising the steps of：S101, output grid reset signal.
It should be noted that：If second control signal and third control signal are the output before first control signal exports
, then grid reset signal and second control signal, third control signal can also be referred to as reset signal.
After step s 102, as shown in figure 5, the control method of electrical measurement fixture provided in an embodiment of the present invention further includes：
S103, stop signal output；Such as can be after panel test, closing control device, stop signal output.
Phase in the product embodiments with above-mentioned electrical measurement fixture appeared in the control method embodiment of the electrical measurement fixture
Same or similar feature, specifically can refer to the description in the product embodiments of above-mentioned electrical measurement fixture, details are not described herein.
More than, specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of electrical measurement fixture, including：There is placed side, the placed side to be used to place detected panel for pedestal, the pedestal,
It is characterized in that, further including：
Press part, the press part are equipped with pogo pin, and the pogo pin can make elasticity along the axial of the pogo pin
Flexible, the pogo pin is located at the top of the placed side, and the connecting portion in the press part can be to close or separate
The direction of the placed side is moved, in the connecting portion into the direction moving process close to the placed side, the connection
Position can be moved to operating position by first position, and the connecting portion is to be connected with the pogo pin in the press part
Position；The first position is the critical localisation that the pogo pin is in contact with the signal input point on detected panel；
Controller, the controller include the first signal output end, and first signal output end is electrically connected with the pogo pin
It connects, the controller is used for during the connecting portion is moved from the operating position to the first position, is passed through
First signal output end exports discharge signal；The discharge signal is used for the charge of the detected panel itself accumulation
It is discharged by the pogo pin.
2. electrical measurement fixture according to claim 1, which is characterized in that further include trigger member, the trigger member is used in institute
It states during connecting portion is moved to the first position by the operating position, when the connecting portion is in the second position
When, it triggers the controller and the discharge signal is exported by first signal output end.
3. electrical measurement fixture according to claim 2, which is characterized in that the trigger member includes being separated by the first conduction of setting
Contact site and the second electrically conducting contact, first electrically conducting contact and second electrically conducting contact connect with the controller
It connects, when the connecting portion is in the second position, first electrically conducting contact and second electrically conducting contact electricity
Connection；The controller is used for when detecting that the first electrically conducting contact and the second electrically conducting contact are electrically connected, and passes through described the
One signal output end exports the discharge signal.
4. electrical measurement fixture according to claim 3, which is characterized in that the controller further includes ground terminal and second signal
Output end, the second signal output end are used to export high level signal after controller unlatching；First conduction connects
Contact portion is electrically connected with the ground terminal, and second electrically conducting contact is electrically connected with the second signal output end, when the company
When socket part position is in the second position, first electrically conducting contact is electrically connected with second electrically conducting contact, the control
It is defeated by first signal output end when device processed is used to detect that the high level signal of the second signal output end is pulled low
Go out the discharge signal.
5. electrical measurement fixture according to claim 1, which is characterized in that first signal output end includes：Grid controls
End, common signal control terminal and data-signal control terminal；
The discharge signal includes first control signal, second control signal and third control signal, the first control signal
For the control signal for simultaneously opening the grid of all pixels of the detected panel of grid control terminal output；
The second control signal is common signal control terminal output for the current potential of the public electrode of all pixels to be set to
The control signal of 0V；The third control signal is data-signal control terminal output for the pixel of all pixels is electric
The current potential of pole is set to the control signal of 0V.
6. electrical measurement fixture according to any one of claims 1 to 5, which is characterized in that further include operating mechanism, the behaviour
Include pressure head as mechanism, the pressure head is rotationally connected on the pedestal, in the mistake that the pressure head is rotated relative to the pedestal
Cheng Zhong, the pressure head can push the press part to be moved along the direction close to the placed side, so that the connecting portion moves
To the operating position；The press part is connected with return unit, and the return unit can be provided to the press part along far from described
The reset force of the direction movement of placed side.
7. electrical measurement fixture according to claim 6, which is characterized in that the controller further include ground terminal and second letter
Number output end, in the case that the trigger member includes the first electrically conducting contact and the second electrically conducting contact,
First electrically conducting contact may be contained with second electrically conducting contact in the press part, when the connecting portion
When in the second position, the pressure head is in contact with first electrically conducting contact, second electrically conducting contact, with
First electrically conducting contact and second electrically conducting contact is set to be electrically connected.
8. a kind of control method of electrical measurement fixture, the electrical measurement fixture includes pedestal and press part, and the pedestal has placed side,
The placed side is for placing detected panel；The press part is equipped with pogo pin, and the pogo pin can be stretched along described
The axial direction of contracting probe makees elastic telescopic, and the pogo pin is located at the top of the placed side, the interconnecting piece in the press part
Position can be moved to the direction close to or far from the placed side, be moved to the direction close to the placed side in the connecting portion
During dynamic, the connecting portion can be moved to operating position by first position, the connecting portion be in the press part with
The position that the pogo pin is connected；The first position is the pogo pin and the signal input point on detected panel
The critical localisation being in contact；It is characterized in that, the control method of the electrical measurement fixture includes：
During the connecting portion is moved to operating position by first position, discharge signal, the discharge signal are exported
For the charge of the detected panel itself accumulation to be discharged by the pogo pin.
9. the control method of electrical measurement fixture according to claim 8, which is characterized in that the discharge signal includes the first control
Signal, second control signal and third processed control signal, and the first control signal is for simultaneously by the detected panel
The grid of all pixels is opened；The second control signal is used to the current potential of the public electrode of all pixels being set to 0V；It is described
Third control signal is used to the current potential of the pixel electrode of all pixels being set to 0V；
During the connecting portion is moved to operating position by first position, output discharge signal specifically includes：
Export the first control signal, the second control signal and third control signal.
10. the control method of electrical measurement fixture according to claim 9, which is characterized in that the discharge signal further includes grid
Pole reset signal, the grid reset signal are used to the output control signal of all GOA driving circuits being set to 0V；
It is further comprising the steps of before exporting the first control signal：Export the grid reset signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374544.2A CN108572470B (en) | 2018-04-24 | 2018-04-24 | Electrical measurement jig and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374544.2A CN108572470B (en) | 2018-04-24 | 2018-04-24 | Electrical measurement jig and control method thereof |
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| Publication Number | Publication Date |
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| CN108572470A true CN108572470A (en) | 2018-09-25 |
| CN108572470B CN108572470B (en) | 2021-03-26 |
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| CN201810374544.2A Expired - Fee Related CN108572470B (en) | 2018-04-24 | 2018-04-24 | Electrical measurement jig and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109491319A (en) * | 2019-01-22 | 2019-03-19 | 蓝思智能机器人(长沙)有限公司 | Glass panel detection method and glass panel feeding detection device |
| TWI751636B (en) * | 2020-08-03 | 2022-01-01 | 尹鑽科技有限公司 | Panel inspection device |
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| JPH11329247A (en) * | 1998-04-15 | 1999-11-30 | Shimadzu Corp | Inspection device and method for field emission flat panel display |
| CN101136156A (en) * | 2006-10-26 | 2008-03-05 | 塔工程有限公司 | Array tester |
| KR100881631B1 (en) * | 2007-07-02 | 2009-02-04 | 주식회사 에이디피엔지니어링 | Electron beam testing system and testing method |
| CN204314567U (en) * | 2015-01-08 | 2015-05-06 | 昆山龙腾光电有限公司 | LCD board test device |
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| JPH11329247A (en) * | 1998-04-15 | 1999-11-30 | Shimadzu Corp | Inspection device and method for field emission flat panel display |
| CN101136156A (en) * | 2006-10-26 | 2008-03-05 | 塔工程有限公司 | Array tester |
| KR100881631B1 (en) * | 2007-07-02 | 2009-02-04 | 주식회사 에이디피엔지니어링 | Electron beam testing system and testing method |
| CN204314567U (en) * | 2015-01-08 | 2015-05-06 | 昆山龙腾光电有限公司 | LCD board test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109491319A (en) * | 2019-01-22 | 2019-03-19 | 蓝思智能机器人(长沙)有限公司 | Glass panel detection method and glass panel feeding detection device |
| CN109491319B (en) * | 2019-01-22 | 2023-11-28 | 蓝思智能机器人(长沙)有限公司 | Glass panel detection method and glass panel material taking detection device |
| TWI751636B (en) * | 2020-08-03 | 2022-01-01 | 尹鑽科技有限公司 | Panel inspection device |
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| CN108572470B (en) | 2021-03-26 |
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