CN105823958A - Contact tester and liquid crystal cell testing device and method - Google Patents
Contact tester and liquid crystal cell testing device and method Download PDFInfo
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- CN105823958A CN105823958A CN201610145052.7A CN201610145052A CN105823958A CN 105823958 A CN105823958 A CN 105823958A CN 201610145052 A CN201610145052 A CN 201610145052A CN 105823958 A CN105823958 A CN 105823958A
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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
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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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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- Crystallography & Structural Chemistry (AREA)
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- Liquid Crystal (AREA)
Abstract
The invention provides a contact tester and a liquid crystal cell testing device and method. The contact tester is used to test whether a detector makes contact with an area to be tested, and comprises a contact detection device, a signal prompt device and a power supply device; the detection end of the contact detection device is leveled with the detection end of the detector; and when the detection end of the detector makes contact with the area to be tested, the detector, the contact tester, the area to be tested, the signal prompt device and the power supply device form a closed loop, so that the signal prompt device emits a prompt signal of contact success. The contact tester can obtain whether the detector makes sound contact with the area to be tested according to the prompt signal, and a display panel is prevented from quality misjudgment caused by contact failure between the detector and the area to be tested.
Description
Technical field
The present invention relates to Display Technique field, be specifically related to a kind of Contact Test Set, liquid crystal cell test equipment and liquid crystal cell method of testing.
Background technology
Panel test Celltest is the detection that product is carried out after panel Cell engineering completes, and has highly important meaning.Existing detection method is by the test Pad on the shorting pin loaded on fixture to glass by signal, and then transmission signal, can determine whether out panel whether existing defects according to display picture.But, if the probe on fixture is bad with test pad contact, just cannot accurately judge that panel is the most problematic.Such as, when using existing detection method to detect that panel is problematic, it is more likely that can be such a situation: panel itself is no problem, testing result causes due to probe and test pad loose contact.
Summary of the invention
For defect of the prior art, the present invention provides a kind of Contact Test Set, liquid crystal cell test equipment and liquid crystal cell method of testing, can know whether detection device contacts well with region to be measured according to cue, thus avoid because of detection device and the bad generation that display floater quality is caused erroneous judgement situation caused of area contact to be measured.
For solving above-mentioned technical problem, the present invention provides techniques below scheme:
First aspect, the invention provides a kind of Contact Test Set, for whether contacting detection device with region to be measured tests, and described Contact Test Set includes contact detecting apparatus, signal prompt device and supply unit；The test side of described contact detecting apparatus is concordant with the end of probe of described detection device, when the end of probe of described detection device is with described area contact to be measured, described detection device, described contact detecting apparatus, described region to be measured, described signal prompt device and described supply unit form closed-loop path, so that described signal indicating device sends the successful cue of contact.
Preferably, described contact detecting apparatus includes columnar metal structure.
Preferably, described contact detecting apparatus includes that metal detection cover, described detection device are positioned at described metal detection cover and insulate with described metal detection cover.
Preferably, described detection device is positioned at the center of described metal detection cover.
Preferably, described metal detection cover is circular surface with the surface of described area contact to be measured, and the area of described circular surface is equal to the area of described region to be measured inscribed circle.
Preferably, described contact detecting apparatus includes that metal detection cover, described detection device are positioned at outside described metal detection cover.
Preferably, described metal detection cover be metal stud detection cover, metal round platform detection cover, metal conic detection cover and metal pyramid detection cover in any one.
Preferably, described signal prompt device includes signal prompt lamp.
Preferably, described Contact Test Set also includes: the first detection line, the second detection line and the 3rd detection line, the non-end of probe of described detection device is connected with one end of described signal prompt device by described first detection line, the other end of described signal prompt device is connected with one end of described supply unit by described second detection line, and the other end of described supply unit is connected with the non-test side of described contact detecting apparatus by described 3rd detection line.
Second aspect, present invention also offers a kind of liquid crystal cell test equipment, the region to be measured including liquid crystal cell to be tested, being arranged on described liquid crystal cell, for the detection device of described liquid crystal cell transmission test signal and Contact Test Set as described above.
Preferably, described liquid crystal cell being provided with multiple region to be measured, described liquid crystal cell test equipment also includes multiple detection device and multiple Contact Test Set；Wherein, described detection device and described region to be measured one_to_one corresponding, described detection device and described test device one_to_one corresponding to be contacted；
When each detection device is with corresponding area contact to be measured, contact detecting apparatus, signal prompt device and supply unit meeting and this detection device in the region to be measured corresponding with this detection device and the Contact Test Set corresponding with this detection device form independent closed-loop path, so that the signal prompt device in the Contact Test Set corresponding with this detection device sends and contacts successful cue.
Preferably, described liquid crystal cell test equipment also includes the carrier for fixing the plurality of detection device.
Preferably, described liquid crystal cell test equipment also includes that Signals Transfer Board, described Signals Transfer Board are connected with described detection device, for described detection device transmission test signal.
Preferably, described liquid crystal cell test equipment also includes: base and the clamping apparatus suitable with described base, described liquid crystal cell to be tested is fixed on described base, and described clamping apparatus carries described detection device and described Contact Test Set.
The third aspect, present invention also offers a kind of liquid crystal cell method of testing applying liquid crystal cell as described above test equipment, including:
Make detection device and the area contact to be measured on liquid crystal cell；
If it is determined that described detection device and the area contact to be measured success on liquid crystal cell, then preset test signal to the transmission of described detection device, so that described liquid crystal cell to be tested.
Preferably, before the described area contact to be measured determined on described detection device and liquid crystal cell success, described method also includes:
Judge that described detection device is the most successful with the area contact to be measured on liquid crystal cell.
Preferably, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including:
If only one of which region to be measured on described liquid crystal cell, then judge that described detection device is the most successful with described area contact to be measured；
If there being multiple region to be measured on described liquid crystal cell, then judge to detect device one to one with the plurality of region to be measured all the most successful with corresponding area contact to be measured, when each detection device is all with corresponding area contact success to be measured, determine described detection device and the success of described area contact to be measured.
Preferably, when only one of which region to be measured on described liquid crystal cell, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including: judge whether the signal prompt device in the Contact Test Set corresponding with described detection device sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured；
When having multiple region to be measured on described liquid crystal cell, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including:
Judge that the signal prompt device in the Contact Test Set corresponding with each detection device the most all sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured.
As shown from the above technical solution, Contact Test Set of the present invention, for whether detection device is contacted with region to be measured to test, Contact Test Set includes contact detecting apparatus, signal prompt device and supply unit；Wherein, the test side of contact detecting apparatus is concordant with the end of probe of detection device, when detecting the end of probe of device and area contact to be measured, described detection device, described contact detecting apparatus, described region to be measured, described signal prompt device and described supply unit form closed-loop path, so that described signal indicating device sends the successful cue of contact.Visible, when Contact Test Set does not sends the successful cue of contact, represent that detection device is bad with described area contact to be measured, and then related personnel can be reminded to take certain measure to ensure, and detection device contacts with the normal of region to be measured, carry out the transmission of dependence test signal the most again to judge panel whether existing defects, so can avoid due to the generation of detection device with the bad erroneous judgement situation caused of area contact to be measured.It can thus be appreciated that, according to cue, the Contact Test Set that the present embodiment provides can know whether detection device (such as probe) contacts well with region to be measured (celltestpad as on liquid crystal board), thus avoid because of detection device and the bad generation that display floater quality causes erroneous judgement situation caused of area contact to be measured.
Accompanying drawing explanation
In order to be illustrated more clearly that the present embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the Contact Test Set that embodiment two provides；
Fig. 2 is embodiment two detection device and the area contact to be measured that provide schematic diagram well and when contacting bad；
Fig. 3 is a kind of structural representation (detection device is positioned at metal detection cover) of the Contact Test Set that embodiment three provides；
Fig. 4 is embodiment three detection device and the area contact to be measured that provide schematic diagram well and when contacting bad；
Fig. 5 is detection device position relationship schematic diagram when being positioned at metal detection cover center between the two；
Fig. 6 is a kind of structural representation (it is outer that detection device is positioned at metal detection cover) of the Contact Test Set that other embodiments of the invention provide；
Fig. 7 is the another kind of structural representation (with detection line) of the Contact Test Set that embodiment three provides；
Fig. 8 is the structural representation of the liquid crystal cell test equipment that embodiment four provides；
Fig. 9 is the schematic diagram of the liquid crystal cell with multiple regions to be measured；
Figure 10 is the structural representation of the liquid crystal cell test equipment that embodiment five provides；
Figure 11 is equivalent circuit diagram；
Figure 12 is the top view of panel test Celltest fixture；
Figure 13 is the flow chart of the liquid crystal cell method of testing that embodiment six provides；
Figure 14 is the another kind of flow chart of the liquid crystal cell method of testing that embodiment six provides；
Wherein, 100 represent detection device；200 represent region to be measured；1 represents the contact detecting apparatus using columnar metal structure to realize；1 ' represents the contact detecting apparatus using metal detection cover to realize；101 end of probe representing detection device 100；The 102 non-end of probe representing detection device 100；11 test sides representing the contact detecting apparatus using columnar metal structure to realize；11 ' the test sides representing the contact detecting apparatus using metal detection cover to realize；12 ' the non-test sides representing the contact detecting apparatus using metal detection cover to realize；2 represent supply unit；3 represent signal prompt device；4 represent the first detection line；5 represent the second detection line；6 represent the 3rd detection line；7 represent carrier；8 represent Signals Transfer Board；A represents para-position screw；B represents lower pressure handle hands.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Panel test Celltest is the detection that product is carried out after panel Cell engineering completes, and has highly important meaning.Its detection method is by the test Pad on the shorting pin loaded on fixture to panel by signal, and then transmission signal, can determine whether out panel whether existing defects according to display picture.Owing to its design feature typically uses, the fixture counter plate of celltest efficiently easy to make detects the product of existing exploitation.Fixture makes in advance according to design drawing, but during practice, owing to fabrication error or technical process occurring some problems, such as sealed plastic box spillings etc. cause panel alignment inaccurate, so that the probe of fixture is bad with test Pad contact, cause picture to show with expection there are differences, thus cannot accurately judge that panel is the most problematic.Based on this problem, the present invention devises a kind of Contact Test Set, and this Contact Test Set can automatically detect celltest fixture and contact with panel test Pad the best, and can provide cue, thus can be greatly improved the accuracy rate of celltest.
To specifically introduce, to implementing six, Contact Test Set, liquid crystal cell test equipment and the liquid crystal cell method of testing that the present invention provides below by enforcement one.
Embodiment one
The embodiment of the present invention one provides a kind of Contact Test Set, for whether contacting detection device with region to be measured tests, and described Contact Test Set includes contact detecting apparatus, signal prompt device and supply unit；The test side of described contact detecting apparatus is concordant with the end of probe of described detection device, when the end of probe of described detection device is with described area contact to be measured, described detection device, described contact detecting apparatus, described region to be measured, described signal prompt device and described supply unit form closed-loop path, so that described signal indicating device sends the successful cue of contact.
Contact Test Set described in the present embodiment, for whether contacting detection device with region to be measured tests, and Contact Test Set includes contact detecting apparatus, signal prompt device and supply unit；Wherein, the test side of contact detecting apparatus is concordant with the end of probe of detection device, when detecting the end of probe of device and area contact to be measured, described detection device, described contact detecting apparatus, described region to be measured, described signal prompt device and described supply unit form closed-loop path, so that described signal indicating device sends the successful cue of contact.Visible, when Contact Test Set does not sends the successful cue of contact, represent that detection device is bad with described area contact to be measured, and then related personnel can be reminded to take certain measure to ensure, and detection device contacts with the normal of region to be measured, carry out the transmission of dependence test signal the most again to judge panel whether existing defects, so can avoid due to the generation of detection device with the bad erroneous judgement situation caused of area contact to be measured.It can thus be appreciated that, according to cue, the Contact Test Set that the present embodiment provides can know whether detection device (such as probe) contacts well with region to be measured (celltestpad as on liquid crystal board), thus avoid because of detection device and the bad generation that display floater quality causes erroneous judgement situation caused of area contact to be measured.
Embodiment two
The one providing the contact detecting apparatus in above-mentioned Contact Test Set in the embodiment of the present invention two implements structure, is specifically described as follows.
In the present embodiment, described contact detecting apparatus can use columnar metal structure to realize.Seeing Fig. 1, in Fig. 1,100 represent detection device；200 represent region to be measured；1 represents the contact detecting apparatus using columnar metal structure to realize；2 represent supply unit；3 represent signal prompt device；101 end of probe representing detection device 100,11 represent the test side of contact detecting apparatus 1；
As it is shown in figure 1, contact detecting apparatus 1 is similar with the structure of detection device 100 in the present embodiment, contact detecting apparatus 1 can use columnar metal structure to realize, such as metal probe, columnar metal pen etc..In actual application, detection device 100 typically uses metal probe or metal bar to realize.Detection device 100 shown in Fig. 1 uses metal bar to realize.
As can be seen from the figure, the test side 11 of described contact detecting apparatus 1 is concordant with the end of probe 101 of described detection device 100, when the end of probe 101 of described detection device contacts with described region 200 to be measured, described detection device 100, described contact detecting apparatus 1, described region 200 to be measured, described signal prompt device 3 and described supply unit 2 form closed-loop path, so that described signal indicating device 3 sends the successful cue of contact.
See Fig. 1 and 2, when the end of probe 101 detecting device 100 contacts good with region 200 to be measured, contact detecting apparatus 1, the closed-loop path of supply unit 2, signal prompt device 3, region to be measured 200 and detection device 100 composition is in channel status, signal prompt device 3 sends the successful cue of contact, represents that detection device 100 contacts well with region 200 to be measured；If the end of probe 101 of detection device 100 deviates region 200 (seeing Fig. 2) to be measured, at this moment contact detecting apparatus 1, the loop of supply unit 2, signal prompt device 3, region to be measured 200 and detection device 100 composition is in the state of open circuit, signal prompt device 3 will not send the successful cue of contact, now show that detecting device 100 contacts bad with region 200 to be measured, if now by detection device 100 to region 200 to be measured transmission test signal, then being certain to draw the test result that there is quality problem in region 200 to be measured.But it practice, region to be measured 200 is likely to not problem, only because detection device 100 and region 200 loose contact to be measured.Therefore, before region 200 to be measured is really tested, the Contact Test Set described in the present embodiment can be used to carry out engaged test, determine whether detection device 100 contacts well with region 200 to be measured.When detecting device 100 and contacting bad with region 200 to be measured, detection device 100 should be adjusted in time, detection device 100 is made to contact with region 200 to be measured, and again use the Contact Test Set described in the present embodiment to carry out engaged test, when determining that detection device 100 contacts good with region 200 to be measured, again by detection device 100 to region 200 to be measured transmission test signal, region 200 to be measured is carried out attribute test, to avoid because contacting the bad erroneous judgement situation caused.It addition, the Contact Test Set not only simple in construction described in the present embodiment, cost is low, and more practical, can be greatly improved the accuracy rate of cell detection.
Here should be appreciated that, when carrying out engaged test, the test side 11 of described contact detecting apparatus 1 should keep contacting with described region 200 to be measured all the time, to ensure when signal indicating device 3 does not sends the successful cue of contact, can directly determine and cause because the end of probe 101 of detection device 100 does not normally contact with region 200 to be measured.
But when reality is applied, the most usually cannot ensure that the test side 11 of described contact detecting apparatus 1 contacts (implement more to bother and maybe cannot implement) all the time with described region 200 to be measured, in consideration of it, the Contact Test Set that the present embodiment provides may there is problems in that
A. when detecting device 100 and contacting good with region 200 to be measured, and contact detecting apparatus 1 contacts bad with region 200 to be measured, signal indicating device will not send the successful cue of contact, the most easily allows related personnel be mistakenly considered and does not well cause because detection device 100 contacts with region 200 to be measured.
B., when contact detecting apparatus 1 does not contacts good with region 200 to be measured with detection device 100, signal indicating device will not send the successful cue of contact, and now related personnel cannot determine this adjustment contact detecting apparatus 1 or adjust detection device 100.
In order to solve this problem, the embodiment of the present invention three gives the another kind of above-mentioned contact detecting apparatus and implements structure.
Embodiment three
The another kind providing the contact detecting apparatus in above-mentioned Contact Test Set in the embodiment of the present invention three implements structure, is specifically described as follows.
In an embodiment, described contact detecting apparatus includes that metal detection cover, described detection device are positioned at described metal detection cover and insulate with described metal detection cover.Seeing Fig. 3, in Fig. 3,100 represent detection device；200 represent region to be measured；1 ' represents the contact detecting apparatus using metal detection cover to realize；2 represent supply unit；3 represent signal prompt device；101 end of probe representing detection device 100,11 ' represent the test side of contact detecting apparatus 1 '；
As it is shown on figure 3, contact detecting apparatus 1 uses metal detection cover to realize in the present embodiment, wherein, the shape of metal detection cover does not limits.Can be such as metal stud detection cover, metal round platform detection cover, metal conic detection cover and metal pyramid detection cover in any one.Metal detection cover shown in Fig. 3 is metal round platform detection cover.In actual application, detection device 100 typically uses metal probe to realize.
As can be seen from the figure, the test side 11 ' of described contact detecting apparatus 1 ' is concordant with the end of probe 101 of described detection device 100, detection device is positioned at described contact detecting apparatus 1 ' (metal detection cover) and insulate with described metal detection cover, when the end of probe 101 of described detection device contacts with described region 200 to be measured, the test side 11 ' of described metal detection cover also contacts with described region 200 to be measured, described detection device 100, described contact detecting apparatus 1 ', described region to be measured 200, described signal prompt device 3 and described supply unit 2 form closed-loop path, so that described signal indicating device 3 sends the successful cue of contact.
See Fig. 3 and 4, when the end of probe 101 detecting device 100 contacts good with region 200 to be measured, contact detecting apparatus 1 ', the closed-loop path of supply unit 2, signal prompt device 3, region to be measured 200 and detection device 100 composition is in channel status, signal prompt device 3 sends the successful cue of contact, represents that detection device 100 contacts well with region 200 to be measured；If the end of probe 101 of detection device 100 deviates region 200 (seeing Fig. 4) to be measured, at this moment contact detecting apparatus 1 ', the loop of supply unit 2, signal prompt device 3, region to be measured 200 and detection device 100 composition is in the state of open circuit, signal prompt device 3 will not send the successful cue of contact, now show that detecting device 100 contacts bad with region 200 to be measured, if now by detection device 100 to region 200 to be measured transmission test signal, then being certain to draw the test result that there is quality problem in region 200 to be measured.But it practice, region to be measured 200 is likely to not problem, only because detection device 100 and region 200 loose contact to be measured.Therefore, before region 200 to be measured is really tested, the Contact Test Set described in the present embodiment can be used to carry out engaged test, determine whether detection device 100 contacts well with region 200 to be measured.When detecting device 100 and contacting bad with region 200 to be measured, detection device 100 should be adjusted in time, detection device 100 is made to contact with region 200 to be measured, and again use the Contact Test Set described in the present embodiment to carry out engaged test, when determining that detection device 100 contacts good with region 200 to be measured, again by detection device 100 to region 200 to be measured transmission test signal, region 200 to be measured is carried out attribute test, to avoid because contacting the bad erroneous judgement situation caused.It addition, the Contact Test Set not only simple in construction described in the present embodiment, cost is low, and more practical, can be greatly improved the accuracy rate of cell detection.
From the present embodiment it can be seen that in order to avoid there is the problem that above-described embodiment two describes, the contact detecting apparatus of the present embodiment uses metal detection cover to realize, and detection device is made to be positioned at described metal detection cover and insulate with described metal detection cover.Because so can ensure that contacting of metal detection cover and region to be measured, thus when carrying out engaged test, if signal prompt device does not sends cue, then can directly determine that detection device is not in contact with well with region to be measured.
Preferably, preferably contacting in order to realize detection device 100 with region 200 to be measured, described detection device 100 is positioned at the center of described metal detection cover 1 '.See Fig. 5, Fig. 5 and show top view when detection device 100 is positioned at the center of described metal detection cover 1 ' and profile.
Preferably, in order to avoid because the area of metal detection cover 1 ' is excessive or the area in region 200 to be measured is excessive, cause contacting detection and lose meaning, correspondingly, the surface that described metal detection cover 1 ' contacts with described region 200 to be measured is circular surface, and the area of described circular surface is equal to the area of described region 200 to be measured inscribed circle.For panel cell, described region 200 to be measured is celltestpad, the generally circular or polygon in described region 200 to be measured.
In other embodiments of the invention, seeing Fig. 6, described contact detecting apparatus includes that metal detection cover, described detection device are positioned at outside described metal detection cover.It practice, this kind of implementation is similar with the implementation of above-described embodiment two, simply have employed metal detection cover and replace the columnar metal structure in above-described embodiment two.
See Fig. 7, preferably, described Contact Test Set also includes: the first detection line 4, second detects line 5 and the 3rd detection line 6, the non-end of probe 102 of described detection device 100 is connected with one end of described signal prompt device 3 by described first detection line 4, the other end of described signal prompt device 3 is connected with one end of described supply unit 2 by described second detection line 5, and the other end of described supply unit 2 is connected with the non-test side 12 ' of described contact detecting apparatus 1 ' by described 3rd detection line 6.
Preferably, so that prompting effect is more preferably or the most directly perceived, described signal prompt device 3 can use signal prompt lamp to realize, it is of course possible to other devices realizations that may be used for carrying out signal prompt such as employing music box, player etc..
Knowable to content above, the present embodiment adds metal detection cover on existing detection device basic, and wherein, detection device does not contacts with metal detection cover, and detection device is concordant with the lower surface of metal detection cover.The present embodiment utilizes detection device, region to be measured, signal prompt device, supply unit and metal detection cover to constitute a loop, when detecting device with area contact to be measured, described detection cover, supply unit, signal prompt device and detection device form closed-loop path, and signal prompt device sends the successful cue of contact.Assume that signal prompt device does not send the successful cue of contact, then show to detect device bad with area contact to be measured, such that it is able to the cue sent according to signal prompt device judges to detect whether device normally contacts with region to be measured, and then can effectively prevent the erroneous judgement in cell test, and can accurately know which detection device is not in contact with, thus accurately judge that picture occurs bad be whether the reason of panel itself.The Contact Test Set that the present embodiment provides can be greatly improved the accuracy rate of cell detection.
Embodiment four
The embodiment of the present invention four provides a kind of liquid crystal cell test equipment, and this liquid crystal cell test equipment includes: liquid crystal cell to be tested, the region to be measured being arranged on described liquid crystal cell, for the detection device of described liquid crystal cell transmission test signal and the Contact Test Set as described in above-described embodiment one to embodiment three any embodiment.
Fig. 8 shows that the structural representation of equipment tested by the liquid crystal cell that embodiment four provides.See Fig. 8, the liquid crystal cell that wherein 300 expressions are to be tested；200 expressions are arranged on the region to be measured on described liquid crystal cell to be tested 300；100 represent for the detection device to described liquid crystal cell 300 to be tested transmission test signal；In the example depicted in fig. 8, described Contact Test Set is made up of metal detection cover 1 ', supply unit 2, signal prompt device the 3, first detection line the 4, second detection line 5 and the 3rd detection line 6.Wherein, the size being arranged on the region to be measured 200 on liquid crystal cell 300 to be tested is generally a few tenths of a mm, it it is readily seen that hardly relative to liquid crystal cell 300 to be tested, Fig. 8 of the present embodiment and FIG. 9 below, Figure 10 are all in order to highlight description region to be measured, that is therefore drawn is relatively big, does not represent the actual size ratio in liquid crystal cell 300 to be tested and region to be measured 200 shown in Fig. 8～Figure 10.
As can be seen from Figure 8, when described detection device 100 contacts with described region 200 to be measured, described detection device 100 region to be measured 200, metal detection cover 1 ', supply unit 2, signal prompt device 3, first detect line 4, second and detect line 5 and the Contact Test Set formation closed-loop path of the 3rd detection line 6 composition, so that signal prompt device 3 sends the successful cue of contact.
The liquid crystal cell test equipment that the present embodiment provides, owing to containing the Contact Test Set described in above-described embodiment, therefore before liquid crystal cell is carried out cell test, the liquid crystal cell test equipment described in the present embodiment can be utilized, prejudge whether detection device (such as probe) normally contacts with the region to be measured (such as celltestpad) on liquid crystal cell, when determining that probe the most normally contacts with celltestpad, the position of probe should be adjusted in time, probe is contacted with celltestpad, carry out cell test process the most again, to avoid the generation that display floater quality is caused erroneous judgement situation caused because of probe and celltestpad loose contact.
Embodiment five
The present embodiment five gives when having multiple region 200 to be measured on liquid crystal cell to be tested, the concrete structure of above-mentioned liquid crystal cell test equipment.Such as, as it is shown in figure 9, have 6 regions 200 to be measured below about liquid crystal cell panel to be tested.Described region to be measured 200 can use celltestpad to realize, and celltestpad is generally Gate metal level.
In the present embodiment, liquid crystal cell being provided with multiple region to be measured, described liquid crystal cell test equipment also includes multiple detection device and multiple Contact Test Set；Wherein, described detection device and described region to be measured one_to_one corresponding, described detection device and described test device one_to_one corresponding to be contacted；
When each detection device is with corresponding area contact to be measured, contact detecting apparatus, signal prompt device and supply unit meeting and this detection device in the region to be measured corresponding with this detection device and the Contact Test Set corresponding with this detection device form independent closed-loop path, so that the signal prompt device in the Contact Test Set corresponding with this detection device sends and contacts successful cue.
Figure 10 shows that the structural representation of equipment tested by the liquid crystal cell that embodiment five provides.Seeing Figure 10,300 represent liquid crystal cell to be tested；200 expressions are arranged on the region to be measured on described liquid crystal cell to be tested 300；100 represent for the detection device to described liquid crystal cell 300 to be tested transmission test signal；In the example shown in Figure 10, described Contact Test Set is made up of metal detection cover 1 ', supply unit 2, signal prompt device the 3, first detection line the 4, second detection line 5 and the 3rd detection line 6.
As can be seen from Figure 10, the corresponding detection device 100 in each region 200 to be measured, correspondingly, each detection device 100 should a corresponding Contact Test Set, whether Contact Test Set contacts with corresponding region to be measured 200 for the detection device 100 detecting correspondence.
In the structure shown in Figure 10, each detection device 100 constitutes independent loop with corresponding Contact Test Set, and the most each Contact Test Set is only used for the contact condition testing corresponding detection device with corresponding region to be measured.Figure 10 sees Figure 11 seen from three equivalent circuit diagrams detected between devices 100 and three corresponding Contact Test Sets.Preferably, one end of the second detection line 5 supply unit 2 accessed in Contact Test Set in parallel in each Contact Test Set, the 3rd detection line 6 other end accessing supply unit 2 in parallel in each Contact Test Set.
In the present embodiment, signal prompt device 3 uses signal prompt lamp to realize, and contact detecting apparatus uses metal detection cover to realize, and detection device 100 uses probe to realize, and described region 200 to be measured uses celltestpad to realize.Wherein, probe does not contacts with metal detection cover, and probe is concordant with the lower surface of metal detection cover.When probe contacts good with celltestpad200, metal detection cover, the closed-loop path of supply unit 2 and signal prompt lamp, probe and region to be measured 200 composition is in channel status, and signal prompt lamp is bright, and prompting contact is good；If the position of certain probe deviation celltestpad, at this moment metal detection cover, the loop of supply unit 2 and signal prompt lamp, probe and celltestpad composition is in the state of open circuit, signal prompt lamp does not works, show that the contact of this probe is bad, it is thus possible to effectively prevent test error, and can accurately know which probe is not in contact with, thus accurately judge that picture occurs bad be whether the reason of panel itself.It addition, the liquid crystal cell test equipment not only simple in construction described in the present embodiment, cost is low, and more practical, can be greatly improved the accuracy rate of cell detection.
So that detection device can stably with area contact to be measured, it is preferable that seeing Figure 10, described liquid crystal cell test equipment also includes the carrier 7 for fixing the plurality of detection device.From fig. 10 it can be seen that multiple detection devices 100 are each attached on carrier 7, so can ensure that detection device 100 stably contacts with region 200 to be measured.
Preferably, seeing Figure 10, described liquid crystal cell test equipment also includes that Signals Transfer Board 8, described Signals Transfer Board 8 are connected with described detection device 100, for described detection device 100 transmission test signal.
Preferably, in order to fix liquid crystal cell and detection device and Contact Test Set well, described liquid crystal cell test equipment also includes: base (not shown) and the clamping apparatus (not shown) suitable with described base, described liquid crystal cell to be tested is fixed on described base, and described clamping apparatus carries described detection device and described Contact Test Set.
The detailed process of panel cell test is given below in conjunction with Figure 12.The top view of panel test Celltest fixture is as shown in figure 12.When testing, panel cell is fixed by six para-position screw a on test platform, signal probe transmission on fixture, by lower pressure handle hands b, probe contacts with celltestpad, to panel input test signal, can determine whether out panel whether existing defects according to display picture.The present embodiment increases a metal detection cover on original each probe, and this metal detection cover does not contacts with probe, and probe is positioned at the center of metal detection cover.The metal detection cover that each probe is corresponding connects one article of the 3rd detection line respectively, and these the 3rd detection line parallels access the negative pole of supply unit.Probe respectively connects one first detection line, and these the first detection lines are by being connected to the positive pole of supply unit with a small power electric source apparatus and a signal prompt lamp after connecting, equivalent circuit diagram is as shown in figure 11.By this design, when probe contacts good with celltestpad, metal detection cover, the loop of small power electric source apparatus and signal prompt lamp, probe and celltestpad composition is in channel status, and display lamp is bright, and prompting contact is good；As long as when the position having a probe deviation celltestpad, at this moment corresponding with this probe metal detection cover, small power electric source apparatus, the loop of signal prompt lamp and celltestpad composition is in the state of open circuit, signal prompt lamp does not works, show that the contact of this probe is bad, such that it is able to whether normally contact with celltestpad according to the condition adjudgement probe of signal prompt lamp, and then can effectively prevent the erroneous judgement in cell test, and can accurately know which probe is not in contact with, thus accurately judge that picture occurs bad be whether the reason of panel itself.
Understanding from the description above, the present embodiment adds a metal detection cover on existing probe basis, and probe does not contacts with metal detection cover, and probe is concordant with the lower surface of detection cover.The present embodiment utilizes probe, signal prompt lamp, supply unit, metal detection cover and region to be measured (celltestpad) to constitute a loop, when probe contacts with celltestpad, metal detection cover, supply unit, signal prompt lamp, probe and celltestpad form loop, and signal prompt lamp is lit.Assume that signal prompt lamp is not lit, then show that probe contacts with celltestpad bad, such that it is able to whether normally contact with celltestpad according to the condition adjudgement probe of signal prompt lamp, and then can effectively prevent the erroneous judgement in cell test, and can accurately know which detection device does not contacts with celltestpad, thus accurately judge that picture occurs bad be whether the reason of panel itself.The Contact Test Set that the present embodiment provides can be greatly improved the accuracy rate of panel cell detection.
Embodiment six
The present embodiment six provides the liquid crystal cell method of testing of a kind of liquid crystal cell applied described in above-described embodiment test equipment, sees Figure 13, and this liquid crystal cell method of testing specifically includes following steps:
Step 101: make detection device and the area contact to be measured on liquid crystal cell.
Step 102: if it is determined that described detection device and the area contact to be measured success on liquid crystal cell, then preset test signal to the transmission of described detection device, so that described liquid crystal cell to be tested.
Liquid crystal cell method of testing described in the present embodiment, before liquid crystal cell is carried out official testing, first determine that detection device is the most successful with area contact to be measured, however, it is determined that detection device and area contact to be measured success, then preset test signal, so that described liquid crystal cell to be tested to detection device transmission.The method directly tested liquid crystal cell relative to prior art, the method for testing described in the present embodiment can be avoided because of detection device and the bad generation that display floater quality causes erroneous judgement situation caused of area contact to be measured.
Preferably, see Figure 14, described determine the success of described detection device and described area contact to be measured before, described liquid crystal cell method of testing also comprises the steps 102 ':
Step 102 ': judge that described detection device is the most successful with described area contact to be measured.
Preferably, described step 102 ' judge that described detection device is the most successful with described area contact to be measured, including:
If only one of which region to be measured on described liquid crystal cell, then judge that described detection device is the most successful with described area contact to be measured；
If there being multiple region to be measured on described liquid crystal cell, then judge to detect device one to one with the plurality of region to be measured all the most successful with corresponding area contact to be measured, when each detection device is all with corresponding area contact success to be measured, determine described detection device and the success of described area contact to be measured.
Preferably, when only one of which region to be measured on described liquid crystal cell, described judge described detection device whether with the success of described area contact to be measured, including: judge whether the signal prompt device in the Contact Test Set corresponding with described detection device sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured；
When having multiple region to be measured on described liquid crystal cell, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including:
Judge that the signal prompt device in the Contact Test Set corresponding with each detection device the most all sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured.
Visible, liquid crystal cell method of testing described in the present embodiment, before liquid crystal cell is tested, can first judge to detect device the most successful with area contact to be measured, when liquid crystal cell has multiple region to be measured, need to judge that each detection device is the most successful with corresponding area contact to be measured, only when each detection device is all with corresponding area contact success to be measured, just liquid crystal cell is tested, to avoid because of detection device and the bad generation that display floater quality is caused erroneous judgement situation caused of area contact to be measured.
Above example is merely to illustrate technical scheme, is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (18)
1. a Contact Test Set, it is characterised in that for whether contacting detection device with region to be measured testing, described Contact Test Set includes contact detecting apparatus, signal prompt device and supply unit；The test side of described contact detecting apparatus is concordant with the end of probe of described detection device, when the end of probe of described detection device is with described area contact to be measured, described detection device, described contact detecting apparatus, described region to be measured, described signal prompt device and described supply unit form closed-loop path, so that described signal indicating device sends the successful cue of contact.
Contact Test Set the most according to claim 1, it is characterised in that described contact detecting apparatus includes columnar metal structure.
Contact Test Set the most according to claim 1, it is characterised in that described contact detecting apparatus includes that metal detection cover, described detection device are positioned at described metal detection cover and insulate with described metal detection cover.
Contact Test Set the most according to claim 3, it is characterised in that described detection device is positioned at the center of described metal detection cover.
Contact Test Set the most according to claim 4, it is characterised in that described metal detection cover is circular surface with the surface of described area contact to be measured, the area of described circular surface is equal to the area of described region to be measured inscribed circle.
Contact Test Set the most according to claim 1, it is characterised in that described contact detecting apparatus includes that metal detection cover, described detection device are positioned at outside described metal detection cover.
7. according to the Contact Test Set described in any one of claim 3～6, it is characterised in that described metal detection cover is any one in metal stud detection cover, metal round platform detection cover, metal conic detection cover and metal pyramid detection cover.
Contact Test Set the most according to claim 1, it is characterised in that described signal prompt device includes signal prompt lamp.
Contact Test Set the most according to claim 1, it is characterized in that, described Contact Test Set also includes: the first detection line, the second detection line and the 3rd detection line, the non-end of probe of described detection device is connected with one end of described signal prompt device by described first detection line, the other end of described signal prompt device is connected with one end of described supply unit by described second detection line, and the other end of described supply unit is connected with the non-test side of described contact detecting apparatus by described 3rd detection line.
10. a liquid crystal cell test equipment, it is characterized in that, the region to be measured that including liquid crystal cell to be tested, is arranged on described liquid crystal cell, for the detection device of described liquid crystal cell transmission test signal and the Contact Test Set as according to any one of claim 1～9.
11. liquid crystal cell according to claim 10 test equipment, it is characterised in that be provided with multiple region to be measured on described liquid crystal cell, described liquid crystal cell test equipment also includes multiple detection device and multiple Contact Test Set；Wherein, described detection device and described region to be measured one_to_one corresponding, described detection device and described test device one_to_one corresponding to be contacted；
When each detection device is with corresponding area contact to be measured, contact detecting apparatus, signal prompt device and supply unit meeting and this detection device in the region to be measured corresponding with this detection device and the Contact Test Set corresponding with this detection device form independent closed-loop path, so that the signal prompt device in the Contact Test Set corresponding with this detection device sends and contacts successful cue.
12. liquid crystal cell according to claim 10 test equipment, it is characterised in that described liquid crystal cell test equipment also includes the carrier for fixing the plurality of detection device.
13. liquid crystal cell according to claim 10 test equipment, it is characterised in that described liquid crystal cell test equipment also includes that Signals Transfer Board, described Signals Transfer Board are connected with described detection device, for described detection device transmission test signal.
14. test equipment according to the liquid crystal cell according to any one of claim 10～13, it is characterized in that, described liquid crystal cell test equipment also includes: base and the clamping apparatus suitable with described base, described liquid crystal cell to be tested is fixed on described base, and described clamping apparatus carries described detection device and described Contact Test Set.
The liquid crystal cell method of testing of the liquid crystal cell test equipment that 15. 1 kinds are applied as according to any one of claim 10～14, it is characterised in that including:
Make detection device and the area contact to be measured on liquid crystal cell；
If it is determined that described detection device and the area contact to be measured success on liquid crystal cell, then preset test signal to the transmission of described detection device, so that described liquid crystal cell to be tested.
16. liquid crystal cell method of testings according to claim 15, it is characterised in that before the described area contact to be measured determined on described detection device and liquid crystal cell success, described method also includes:
Judge that described detection device is the most successful with the area contact to be measured on liquid crystal cell.
17. liquid crystal cell method of testings according to claim 16, it is characterised in that described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including:
If only one of which region to be measured on described liquid crystal cell, then judge that described detection device is the most successful with described area contact to be measured；
If there being multiple region to be measured on described liquid crystal cell, then judge to detect device one to one with the plurality of region to be measured all the most successful with corresponding area contact to be measured, when each detection device is all with corresponding area contact success to be measured, determine described detection device and the success of described area contact to be measured.
18. liquid crystal cell method of testings according to claim 17, it is characterized in that, when only one of which region to be measured on described liquid crystal cell, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including: judge whether the signal prompt device in the Contact Test Set corresponding with described detection device sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured；
When having multiple region to be measured on described liquid crystal cell, described judge described detection device whether with the area contact to be measured success on liquid crystal cell, including:
Judge that the signal prompt device in the Contact Test Set corresponding with each detection device the most all sends and contact successful cue, if, it is determined that described detection device and the success of described area contact to be measured.
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| CN201610145052.7A CN105823958A (en) | 2016-03-14 | 2016-03-14 | Contact tester and liquid crystal cell testing device and method |
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| CN201610145052.7A CN105823958A (en) | 2016-03-14 | 2016-03-14 | Contact tester and liquid crystal cell testing device and method |
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| CN108803093A (en) * | 2018-05-24 | 2018-11-13 | 南京中电熊猫平板显示科技有限公司 | A kind of panel characteristics detection device |
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Application publication date: 20160803 |