CN1967317A - Inspection method and apparatus of flat display pane - Google Patents
Inspection method and apparatus of flat display pane Download PDFInfo
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- CN1967317A CN1967317A CNA2006100585881A CN200610058588A CN1967317A CN 1967317 A CN1967317 A CN 1967317A CN A2006100585881 A CNA2006100585881 A CN A2006100585881A CN 200610058588 A CN200610058588 A CN 200610058588A CN 1967317 A CN1967317 A CN 1967317A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
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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
Abstract
Disclosed is an inspection method and an apparatus of flat display pane capable of performing continuously a visual test and a collectivity test using the same equipment. The inspection method used for flat panel display (FPD) comprises a loading process used for fixing a flat panel display transferred to an inspecting stand to an inspecting pad; an overall test process used for applying an electric power and a control signal to a channel part of said inspecting pad through a plurality of probes of the overall test unit after the FPD inspection device comprising the overall test unit and the visual test unit is set to the inspecting pad, through which an overall test screen is displayed on the flat panel display to detect defects of the flat panel display through the overall test screen; and a visual test process used for contacting the visual test unit partly with the channel part of the inspecting pad to short circuit said pad in the channel part, through which a visual test screen is displayed on the flat panel display to detect the line defects and the element defects of the flat panel display through the visual test screen.
Description
Technical field
The present invention relates to a kind of inspection method and device that is used for flat-panel monitor (FPD).
More specifically, the present invention relates to a kind of FPD inspection method and device, it allows to utilize same equipment to carry out visual test and overall test in succession.
Background technology
In the manufacturing of the flat-panel monitor that comprises LCD (LCD), before fitteding to be the flat-panel monitor product of finishing, it will stand to be used to check some technology of the existence of FPD panel defect.
In order before assembling, the FPD panel to be checked, at first, the accompanying inspection pad of drive IC is contacted with checking probe.After this, be applied to electric power and the control signal of checking probe, be applied to the FPD panel, so that the output overall test shields on the FPD panel via inspection pad from drive IC.By using this overall test screen, can carry out the overall test that to check the FPD panel defect.Overall test enables the inspection and other inspections related with display to putting on the FPD panel.Herein, the accompanying inspection pad of drive IC comprises Mb pad and channel part.The Mb pad is used for signal is applied to corresponding inspection probe piece, and channel part has R, G and B characteristic.
But observable defective is normally caused by so-called " pin disappearance (pin-miss) " in above-mentioned overall test, although it looks like and is caused by the impurity on the above-mentioned FPD panel.The wearing and tearing pin that " pin disappearance " often is provided with owing to the probe piece place that uses in the inspection of FPD panel etc. takes place.The pad spacing of FPD panel is narrow more, and the frequency that the pin disappearance produces is high more.
Correspondingly, be difficult to determine exactly the reason of FPD panel defect.
In addition, when the panel of defectiveness stands module process for back technology, only after drive IC and printed circuit board (PCB) being forced together, could detect the existence of defective panel by use anisotropic conductive film (ACF).Correspondingly, if detect defective panel, expensive drive IC and PCB must remove from defective panel, and removed drive IC and PCB also can not re-use.Therefore, exist the problem of economic loss.
Simultaneously, under the situation of mobile display panel or large-scale display pannel, carry out the visual test that is used for inspection panel wiring defective usually.Compare with only carrying out overall test, this has the effect that reaches the ratio of defects reduction.But the two independent execution of visual test and overall test means that carrying out two required time, labour and spaces of test doubles.
In addition, visual pattern (that is, short bar) must be removed before execution module technology, therefore, can not carry out visual test in module process.Correspondingly, must before module process, carry out visual test.
Summary of the invention
Therefore, in view of above problem, finished the present invention, an object of the present invention is to provide a kind of flat-panel monitor (FPD) inspection method and device of being used for, wherein can utilize same equipment to carry out in succession visual test and overall test such as the FPD panel of LCD (LCD) panel.
Another object of the present invention provides inspection method and the device of a kind of FPD of being used for, wherein, during overall test, by using the pivot unit, the visual test contact unit can rotate pivotally with respect to the overall test contact unit, has only the overall test contact unit to contact with the FPD panel of examine thus.
Another purpose of the present invention provides inspection method and the device of a kind of FPD of being used for, wherein the visual test unit has vertically moving structure, thus, under the situation of visual test, the visual test unit can contact with the FPD panel of looking into to be checked with the overall test unit, and under the situation of overall test, the visual test unit moves up to enable the execution of overall test.
Another purpose of the present invention provides inspection method and the device of a kind of FPD of being used for, wherein the visual test unit is arranged on the lower end of overall test unit, and has a structure that can move horizontally, thus, under the situation of visual test, when receiving by overall test unit applied pressure, the visual test unit moves forward to contact with the FPD panel of examine to carry out visual test, and under the situation of overall test, the visual test unit moves backward so that the overall test unit contacts with the FPD panel of examine, to enable the execution of overall test.
According to an aspect of the present invention, by a kind of inspection method that is used for flat-panel monitor (FPD) is provided, can realize above-mentioned and other purposes, this method comprises: loading technique, and its FPD panel that is used for being sent to the FPD inspecting stand is installed to inspection pad; Overall test technology, overall test unit and visual test whole unit are being formed after wherein FPD testing fixture is installed on the inspection pad, a plurality of probes via the overall test unit, electric power and control signal are applied to the channel part of inspection pad, thereby output overall test screen on the FPD panel, so that shield the defective that detects the FPD panel via overall test; And visual test process, it is used to make the visual test unit to contact with the channel part of inspection pad, with at the described pad of channel part short circuit, thus on the FPD panel output visual test screen so that shield line defect and the first defective that detects the FPD panel via visual test.
According to a further aspect in the invention, by a kind of FPD testing fixture that is used to check the FPD display is provided, can finish above-mentioned and other purposes, wherein the FPD display is connected to the pad of a plurality of contact points with the drive IC of being connected to, and this FPD testing fixture comprises: at least one visual test unit; With the overall test unit of at least one, wherein visual test unit and overall test unit are selectively driven to allow optionally to carry out visual test and overall test at the FPD panel.
Preferably, at least one overall test unit can comprise the overall test contact unit, and this overall test contact unit comprises: framework, and it has the part that is articulated and connected that is formed on frame facet; Overall test probe shell, it is used for holding a plurality of overall test probes at the framework front end; With the driver coupling part, its rear end from framework is outstanding.At least one visual test unit can comprise the vision-based detection contact unit, but its mode with pivotal rotation is hingedly connected to framework, and has a plurality of visual test probes at the one end.The FPD testing fixture can further comprise the pivot unit, so that the visual test contact unit rotates pivotally with respect to the overall test contact unit.
Preferably, FPD display testing fixture can further comprise: main connecting frame; A plurality of vertical moving unit, main connecting frame is coupled in its use by secure component; And sub-connecting frame, thereon Biao Mian ad-hoc location, be coupled to vertical moving unit by the use of secure component.At least one overall test unit can comprise by the use of secure component so that a plurality of overall tests unit that they are spaced apart from each other and are coupled to main connecting frame with constant distance, each vertical moving unit is between adjacent two the overall test unit on the main connecting frame, and at least one visual test unit can comprise and is coupled to sub-connecting frame lower surface so that a plurality of visual tests unit that they are spaced apart from each other with constant distance.
Description of drawings
By following detailed description with the accompanying drawing, will clearer understanding be arranged to above-mentioned and other purposes of the present invention, feature and other advantages, wherein:
Fig. 1 is the block diagram of explanation according to a kind of FPD inspection method of the present invention;
Fig. 2 is the skeleton view of explanation according to a FPD testing fixture of first embodiment of the invention;
Fig. 3 is the part decomposition diagram of the FPD testing fixture of key diagram 2;
Fig. 4 and Fig. 5 are the side views of the FPD testing fixture operation of key diagram 2;
Fig. 6 is the skeleton view of explanation according to a FPD testing fixture of second embodiment of the invention;
Fig. 7 is the part decomposition diagram of the FPD testing fixture of key diagram 6;
Fig. 8 and Fig. 9 are the side views of the FPD testing fixture operation of key diagram 6;
Figure 10 is the skeleton view of explanation according to a FPD testing fixture of third embodiment of the invention;
Figure 11 and Figure 12 are the side views of the FPD testing fixture operation of explanation Figure 10;
Figure 13 is the skeleton view of explanation according to a FPD testing fixture of fourth embodiment of the invention;
Figure 14 is the end skeleton view that the visual test unit in the FPD testing fixture that is included in Figure 13 is described;
Figure 15 is the end skeleton view that the overall test unit in the FPD testing fixture that is included in Figure 13 is described; And
Figure 16 is the bottom exploded perspective view of Figure 14.
Embodiment
Now, with reference to the accompanying drawings, will explain the preferred embodiment that is used for the testing fixture of flat-panel monitor (FPD) according to of the present invention.
With reference to figure 1, FPD inspection method according to the present invention comprises: loading technique S100, overall test technology S200 and visual test process S300.In loading technique S100, the FPD panel that is sent to the FPD inspecting stand is installed at least one inspection pad; Then, for carrying out overall test technology S200 and visual test process S300 in succession, wherein the FPD testing fixture that is integral with each other of overall test unit and visual test unit is installed on the inspection pad.In overall test technology S200,, electric power and control signal are applied to the channel part of inspection pad, on the FPD panel so that the overall test screen is exported via a plurality of probes of overall test unit.By this overall test screen, might detect the defective of FPD panel itself.In visual test process S300, the visual test unit contacts with the channel part of inspection pad, with at the described pad of channel part short circuit, exports on the FPD panel so that visual test shields.By this visual test screen, might detect the line defect and unit (cell) defective of FPD panel.
Hereinafter, the different embodiment of the FPD testing fixture that uses said method will be explained in detail.
First embodiment
With reference to figure 2, Fig. 2 illustrates a FPD testing fixture according to first embodiment of the invention, and this FPD testing fixture comprises: overall test contact unit 10, and it is used for the FPD panel is carried out overall test; Visual test contact unit 20, it is used for the FPD panel is carried out visual test, but visual test contact unit 20 is hingedly connected to overall test contact unit 10 in the mode of pivotal rotation; And pivot unit 30, it is used to make visual test contact unit 20 to rotate pivotally with respect to overall test contact unit 10.
Overall test contact unit 10 comprises: framework 11, and it has one or more parts 12 that is articulated and connected; With overall test probe shell 13, it is used for holding a plurality of overall test probes 14 at framework 11 front ends.
Particularly, framework 11 with overall test contact unit 10 of reservation shape has occupied the part of FPD testing fixture, and be coupled to overall test probe shell 13 at its front end, in overall test probe shell 13, hold overall test probe 14, to finish overall test contact unit 10.
Consider to be articulated and connected part 12, they can be arranged on a side (lateral side) of the framework 11 with reservation shape, or preferably, can be arranged on the relative side of framework 11 symmetrically.As shown in Figure 2, the part that is articulated and connected 12 can be configured to from framework 11 outwards outstanding, perhaps also can take the form in hole, although do not illustrate.
As mentioned above, the overall test probe shell 13 that is used to hold overall test probe 14 is arranged on the front end of framework 11.Overall test probe shell 13 inside define predetermined space and have open basal surface, so that overall test probe 14 is provided with in parallel with each other, contact with the contact point 2 of the inspection pad 1 shell 13 is popped one's head at one end place with overall test in.Each overall test probe 14 has the shape of blade, and is formed with contact portion 14a at the one end, to contact with one of contact point 2 of pad 1.The electric signal that overall test probe 14 is used for being applied to it is transferred to the contact point 2 of inspection pad 1, so that check the existence of the defective of FPD panel own.
Framework 11 is with being used for driver coupling part 15 formation that driver connects, and driver will be explained hereinafter.Driver coupling part 15 is formed on the rear end of framework 11, pops one's head in 14 relative with overall test.
Visual test contact unit 20 comprises: subframe 21 is provided with a pair of parts 22 that are articulated and connected; A plurality of visual test probes 24, it is arranged on the front of subframe 21; With actuator support 25, it is arranged on the rear end of subframe 21.
The parts 22 that are articulated and connected of subframe 21 are hingedly connected to the part 12 that is articulated and connected of framework 11, make subframe 21 to rotate predetermined angular pivotally with respect to framework 11.As shown in Figure 3, by the use parts 22 that are articulated and connected, subframe 21 has the shape of part 12 complementations that is articulated and connected with framework 11, so that be hingedly connected to framework 11.Therefore, subframe 21 being hingedly connected to framework 11 makes visual test contact unit 20 to rotate pivotally with respect to overall test contact unit 10.
A plurality of visual test probes 24 are defined as piece shape, and as the short bar that in conventional visual test, uses.Although need short bar so that divide into groups to filling up 1 contact point 2 with predetermined number from conventionally saying, the present invention does not need short bar owing to used piece shape visual test probe 24.A plurality of visual tests probe 24 is set to extend preset width to the right from the left side of Fig. 3 so that they corresponding to except other contact points that are positioned at the zone, opposite end, be arranged on some contact points 2 that fill up on 1.
The actuator support 25 that is arranged on subframe 21 rear ends is coupled to driver 31 with driver plate 33.
Though do not illustrate, overall test probe 14 is connected to and is used for one or more drive IC (not shown) that electricity drives the FPD panel.Visual test probe 24 is suitable for receiving individually electric power, thereby is used for the contact point 2 of short circuit pad 1, more specifically, and the contact point 2 on the channel part of test for short-circuit pad 1.
Before being coupled to driver 31, the driver plate 33 that is used for the coupling of driver 31 at first is hingedly connected to the rear end of framework 11.Particularly, driver plate 33 is hingedly connected to the driver coupling part 15 of framework 11 in its lower end, so that it can rotate pivotally with respect to framework 11.Then, when driver 31 was coupled to driver plate 33, driver 31 can rotate pivotally with respect to framework 11.
After being coupled to driver plate 33, when the bar 32 of driver 31 when the one end is connected to the actuator support 25 that is arranged on subframe 21 rear ends, driver 31 also is coupled to the subframe 21 of visual test contact unit 20.Therefore, visual test contact unit 20 can rotate with respect to overall test contact unit 10 pivotally according to the operation of driver 31.
Now, with operation and the effect explained according to the FPD testing fixture with above-mentioned configuration of first embodiment of the invention.
At first, the FPD panel is sent to the FPD panel of LCD panel in the FPD testing fixture for inspection comprises, and it is arranged on the predetermined position of checking.
Then, the FPD panel of examine is connected to the pad 1 of a plurality of contact points 2 with the drive IC of being connected to.When the FPD of examine panel is connected to the pad 1 that contact point 2 as shown in Figure 2 evenly is provided with constant distance thereon, might before the flat-panel monitor product that the FPD panel-mounted is become to finish, be checked through the existence of FPD panel defect.
If the FPD panel is ready for inspection as mentioned above, at first by using visual test contact unit 20 to come the FPD panel is carried out visual test.For this reason, as shown in Figure 4, in the state of driver 31, more specifically bar 32 extensions of driver 31, the visual test probe 24 that is arranged on visual test contact unit 20 front ends contacts with the contact point 2 of pad 1.
Then,, be applied to pad 1, only make the contact point 2 on the channel part of pad 1 by short circuit, and will output on the FPD panel of examine for the visual test screen of blank screen from the power supply electrical power supplied of independent connection via visual test probe 24.As a result, the operator can feel that test panel determines line defect and first defective of FPD panel via blackout.
In this case,, then this FPD panel is unloaded from testing fixture, to dispose to defective regional place under repair or with panel itself if the FPD panel is confirmed as defective one.On the contrary, if the FPD panel is confirmed as normal one, will carry out overall test to this FPD panel subsequently.
In aforesaid visual test, be arranged on the institute of pad on 1 equably with constant distance and had point of contact and 2 all pop one's head in and 24 do not contact with visual test.Except being suitable for receiving other contact points 2 of electric power and control signal, have only some contact points that are suitable for the receiving cable signal 2 to contact with visual test probe 24.
After visual test is finished, operate driver 31 so that visual test contact unit 20 separates from filling up 1.If driver 31, more specifically bar 32 is compressed so that visual test contact unit 20 rotates to state shown in Fig. 5 pivotally from state shown in Fig. 4 clockwise, the visual test probe 24 that then is arranged on visual test contact unit 20 front ends is removed from filling up 1 contact point 2.Thereby in visual test probe 24 and pad 1 state that separates, the control signal that applies from drive IC is applied to the overall test probe 14 of overall test contact unit 10, so that carry out the overall test of the defective that is used for determining FPD panel corresponding units.
Particularly, if control signal is applied to overall test probe 14,, and therefore can determine whether defectiveness of FPD panel then based on the defective of the corresponding unit of FPD panel and the particular value of output notice ratio of defects.If the FPD panel is defined as normal one, then this panel is sent to back technology, so that be assembled into the flat-panel monitor product of finishing.On the contrary, if the FPD panel is defined as defective one, panel must be disposed or stood above-mentioned inspection technology once more after repairing.
In above-mentioned overall test, the institute of pad 1 has point of contact and 2 contacts with the contact portion 14a of all overall tests probe 14 respectively, with the defective of definite corresponding unit of FPD panel.
After finishing overall test, FPD panel on inspection is sent to back technology, and new panel is ready for inspection.If new panel has been ready for inspection, driver 31, more specifically bar 32 extends once more so that visual test contact unit 20 rotate pivotally and makes visual test probe 24 contact with the contact point 2 that fills up 1, so that the execution visual test.Similarly, after visual test was finished, visual test contact unit 20 rotated pivotally so that visual test probe 24 is removed from filling up 1 contact point 2, so that allow to carry out overall test.
When aforesaid operation repeats, can check the existence of its defective continuously at a plurality of FPD panels.
Second embodiment
With reference to Fig. 6 to Fig. 9 according to the FPD testing fixture of second embodiment of the invention of explanation, this testing fixture comprises: main connecting frame 100, a plurality of overall tests unit 109; A plurality of vertical moving unit 135; Sub-connecting frame 126; A plurality of visual tests unit 119; With a plurality of elastomeric elements 124.By the use of secure component 102, be used for a plurality of overall tests unit 109 of FPD panel execution overall test is fixedly mounted in main connecting frame 100, so that they are spaced apart from each other with constant distance.By the use of secure component 102, a plurality of vertical moving unit 135 also are fixedly mounted on the main connecting frame 100, so that each vertical moving unit 135 is between two the adjacent overall test unit 109 on the main connecting frame 100.Vertical moving unit 135 is used for making visual test unit 119 to contact with the FPD panel or is used for making visual test unit 119 to separate from the FPD panel.By the use of secure component 102, vertical moving unit 135 also is installed in the ad-hoc location of the upper surface of sub-connecting frame 126.Be used for a plurality of visual tests unit 119 of FPD panel execution visual test is coupled to the lower surface of sub-connecting frame 126, so that they are spaced apart from each other with constant distance.A plurality of elastomeric elements 124 are inserted through respectively in a plurality of holes 122 of sub-connecting frame 126 vertical punchings, so that in the depression 116 of the visual test unit 119 of an association of an end of each elastomeric element 124 insertion, and the other end of elastomeric element 124 is pushed by secure component 125 and is supported.
Particularly, each overall test unit 109 comprises: main body 104; With overall test probe shell 108, it is positioned at the front end of main body 104 and is configured to hold therein a plurality of overall test probes 106.The overall test unit 109 of present embodiment is identical in configuration with the overall test unit of above-mentioned first embodiment, no longer provides detailed description thus.
With reference to figure 7, each visual test unit 119 comprises: be formed on outstanding 112 of its upper surface center; A pair of fixed-wing 114, its be formed on described upper surface the opposite end, with outstanding 112 predetermined at interval distances; A pair of depression, it is formed between outstanding 112 and two fixed-wings 114; And the visual test parts 118 that are arranged on its front end surface.
In addition, visual test parts 118 can have the shape or the probe shape of plate.
Utilize above-mentioned configuration, the fixed-wing 114 that is formed on the opposite end of each visual test unit 119 upper surface inserts along the guide channel 130 of the association of sub-connecting frame 126, and is coupled to related guide channel 130; And outstanding 112 coupling slots 128 along the association of sub-connecting frame 126 that are formed on 119 upper surface centers, visual test unit insert, and are coupled to related coupling slot 128.Therefore, if a plurality of visual tests unit 119 is coupled to sub-connecting frame 126 fully, then the depression 116 of visual test unit 119 respectively with hole 122 vertical alignments of sub-connecting frame 126.
After visual test unit 119 was coupled to sub-connecting frame 126 fully, elastomeric element 124 inserted from the hole 122 of above-mentioned sub-connecting frame 126, reaches the depression 116 of visual test unit 119 up to them.Then, secure component 125 is fastened to respectively in the hole 122, to push elastomeric element 124, so that it is installed in the depression 116 by hole 122.In this case, each hole 122 perimeter surface within it is formed with screw thread, therefore allows turn secure component 125.
Simultaneously, sub-connecting frame 126 is provided with a plurality of LM guidings 129 at the one end surfaces towards vertical moving unit 135.
Each vertical moving unit 135 comprises: main body 110 is provided with guide rod 136 at the one end, to insert in one of LM guiding 129; Lid 132, it is arranged on the upper surface of the main body 110 that is coupled to sub-connecting frame 126; And bool 134, it is connected to via secure component 102 and covers 132, and is suitable for allowing sub-connecting frame 126 to move up when receiving external force.
Particularly, after the use by secure component 102 of the main body 110 of the unit 135 that moves up was fixed on the main connecting frame 100, guide rod 136 was inserted into the LM guiding 129 of sub-connecting frame 126, is coupled to sub-connecting frame 126 to allow main body 110.Then, by the use of secure component 102, bool 134 couplings also are fixed to sub-connecting frame 126, cover 132 simultaneously and are inserted in therebetween.Utilize this configuration, when the upper surface 134a of bool 134 by cylinder (as shown in phantom in Figure 8) when pushing, based on lever principle, sub-connecting frame 126 can move up by the bool 134 that is coupled to it.
Now, with operation and the effect explained according to the FPD testing fixture with above-mentioned configuration of second embodiment of the invention.
To be relevant to first embodiment described as top, in order to check the FPD panel that comprises the LCD panel, at first the FPD panel transmitted into testing fixture, and it is arranged on predetermined inspection position.
Then, if the FPD panel is connected to contact point 2 as shown in Figure 6 with the even pad 1 disposed thereon of constant distance, might before the flat-panel monitor product that the FPD panel-mounted is become to finish, check the existence of FPD panel defect.
If the FPD panel is prepared to check as mentioned above, then at first by using the 119 pairs of FPD panels in visual test unit to carry out visual test.Particularly, if the pressure that cylinder (as shown in phantom in Figure 8) is applied to bool 134 is removed, then sub-connecting frame 126 moves down, and thus, the visual test parts 118 that are arranged on visual test unit 119 front ends contact with the contact point 2 that fills up 1.
Then, if be applied to visual test parts 118 from the independent current source electrical power supplied, then the contact point 2 on the channel part of short circuit pad 1 only is that blank screen output is on the FPD panel thereby allow the visual test screen.As a result, via this blackout feel test panel, the operator can determine line defect and first defective of FPD panel.In visual test, visual test unit 118 not with evenly be arranged on constant distance pad on 1 had point of contact and 2 contacted, but only contact with some contact points that are suitable for the receiving cable signal except other contact points that are suitable for receiving electric power and control signal.
If determining the FPD panel is defective one, then the FPD panel is unloaded from testing fixture, so that repair defective zone or the FPD panel itself is disposed.On the contrary, if determine that the FPD panel is normal one, then subsequently the FPD panel is carried out overall test.
Particularly, after finishing visual test, if operate cylinder as shown in Figure 9 to push bool 134, then guide rod 136 moves up along LM guiding 129, thereby allows sub-connecting frame 126 to move up.As a result, the visual test parts 118 of visual test unit 119 separate from filling up 1, and therefore visual test unit 119 is removed from filling up 1 contact point 2.
Subsequently, if in visual test unit 119 from fill up 1 state of removing, drive IC is applied to the overall test probe 106 of overall test unit 109 with signal, then carries out the overall test of the defective that is used for determining the corresponding unit of FPD panel.
Particularly,, then come the particular value of output notice ratio of defects, therefore, can determine whether defectiveness of FPD panel based on the defective of the corresponding unit of FPD panel if signal is applied to overall test probe 106.If determine that the FPD panel is normal one, then this panel is sent to back technology, so that be assembled into the flat-panel monitor product of finishing.On the contrary, be defective one if determine the FPD panel, then panel must be disposed or stood above-mentioned inspection technology once more after repairing.
In above-mentioned overall test, the institute of pad 1 has point of contact and 2 contacts with pop one's head in 106 contact portion 106a of overall test, with the defective of definite corresponding unit of FPD panel.
After finishing overall test, the FPD panel is sent to back technology, and new panel is ready for inspection.
Because above-mentioned operation repeats, therefore can be at the existence of a plurality of its defectives of FPD panel continuous review.
The 3rd embodiment
The FPD testing fixture according to third embodiment of the invention as shown in Figure 10 to Figure 12 is slightly different with the FPD testing fixture according to second embodiment of the invention.Correspondingly, will omit having the description with the element of the second embodiment same structure, and hereinafter will only describe the difference between it.
Main difference between second embodiment of the invention and the 3rd embodiment comprises: be fixed to the architectural feature of bool 134 of the vertical moving unit 135 of sub-connecting frame 126, and the syndeton between sub-connecting frame 126 and the visual test unit 119.
Among the 3rd embodiment as shown in Figure 10, the connection of second embodiment and a plurality of bools 134 that are fixed to the main body 110 of each vertical moving unit 135 are replaced by the bending part 300 with a plurality of connectors 310.The position of connector 310 is defined as and vertical moving unit 135 vertical alignments, so that be connected respectively to a plurality of vertical moving unit 135.
Consider sub-connecting frame 126 different and the syndeton between the visual test unit 119 with second embodiment, present embodiment proposed respectively the fastening a plurality of elastomeric elements 124 in hole 122 by sub-connecting frame 126 ' use to insert in the depression 116 of visual test unit 119 at the one end.In this case, each hole 122 within it perimeter surface be formed with screw thread.
With reference to Figure 11, each elastomeric element 124 ' be shape with blank pipe of blind upper end and stepped lower end 124 ' a.
Spring 124 ' c insert elastomeric element 124 ' empty part 124 ' b.Equally, fixed body 124 ' d is connected to the lower end of spring 124 ' c, so as when it to be caught by stepped lower end 124 ' a not with elastomeric element 124 ' separate.
Particularly, as shown in Figure 11, when the external force that is applied to it disappeared, fixed body 124 ' d turned back to its original position when receiving the restoring force of spring 124 ' c, thereby allow a contact point that is associated of visual test unit 119 to contact, so that visual test can be carried out with pad.
As shown in Figure 12, action is upwards to push away spring 124 ' c when receiving external force for fixed body 124 ' d, and visual test unit 119 moves up, thereby a contact point with pad that makes overall test unit 109 be associated contacts, so that overall test can be carried out.
The 4th embodiment
With reference to figures 13 to Figure 16, Figure 13 to Figure 16 has illustrated the FPD testing fixture according to fourth embodiment of the invention, and this FPD testing fixture comprises: main connecting frame 200; A plurality of overall tests unit 209 is coupled to main connecting frame 200 by the use of secure component, is spaced apart from each other with constant distance; A pair of forward and reverse drive unit 247, by the use of fixed part 243, it is fixedly coupled to the opposite end of the lower surface of main connecting frame 200; Pair of L-shaped parts 245, each is coupled in forward and the reverse drive unit 247 one in its first, and is formed with a plurality of elongated pore 245a and 245b at its second portion, and second portion is perpendicular to first; A pair of guide rod 236b is being coupled to the lower surface of main connecting frame 200 respectively with L shaped parts 245 with the preset distance spaced positions; Pair of L M guides 236a, is coupled to guide rod 236b respectively; Movable part 226 is fixedly coupled to two LM guiding 236a, and has and be formed on its opposite end, the elongated pore 245a that inserts L shaped parts 245 and outstanding 226a and the 226b among the 245b, and movable part 226 has stair-stepping front end; And a plurality of visual tests unit 229, install and be coupling on the stepped front end of movable part 226, be spaced apart from each other within a predetermined distance.
In the visual test unit 229 each comprises: sheet copper 224; Be attached to the visual test parts 228 of copper coin 224; And fixture 222, it is used for sheet copper 224 couplings and is fixed to movable part 226.
Visual test parts 228 are elastomeric elements, more specifically are conductive rubbers.
To explain operation and effect now according to the FPD testing fixture with above-mentioned configuration of fourth embodiment of the invention.
Hereinafter, with omit to the detailed description of the first and second embodiment components identical, and visibly different element is only described.
If the FPD panel is ready for inspection, then as shown in Figure 14, at first reverse drive adopts the forward and the reverse drive unit 247 of cylindrical form, makes L shaped parts 245 move forward, and the LM guiding 236a that is connected to movable part 226 moves forward along guide rod 236b.As a result, movable part 226 moves forward, and a plurality of visual tests unit 229 that therefore allows to be coupled to movable part 226 by the use of fixture 222 moves forward, so that it is arranged in the lower end of each overall test unit 209.
Then, if an end of each overall test unit 209 is pushed an end of each visual test unit 229, then the visual test parts 228 of visual test unit 229 contact with the contact point 2 of pad 1, make it possible to carry out visual test.
With after carrying out visual test fully with first embodiment to the, three embodiment same way as, as shown in Figure 15, drive forwards forward and reverse drive unit 247, make L shaped parts 245 move backward, and make the LM guiding 236a that is connected to movable part 226 move backward along guide rod 236b, opposite with visual test.As a result, movable part 226 moves backward, and a plurality of visual tests unit 229 that therefore allows to be coupled to movable part 226 by the use of fixture 222 moves backward, so that the probe 206 of overall test unit 209 is exposed to the outside.
When outside the probe 206 of overall test unit 209 is exposed to and with the contact point 2 of pad 1, contacting, carry out overall test.
As mentioned above, by use identical equipment, under the situation of not mobile FPD panel, carried out visual test and overall test in succession, can reduce thus to transmit and be used to check time that the FPD panel is required and extra inspection setup time.
As according to foregoing description and significantly, FPD testing fixture according to the present invention has following effect.
The first, check that by in the manufacturing of FPD, reducing there is the required time of defective in the FPD panel, FPD testing fixture of the present invention has the effect that improves flat-panel monitor output.Particularly, according to the present invention, visual test and overall test to the FPD panel can utilize same equipment to carry out in succession, therefore, carry out the prior art of visual test and overall test with the independent technology of needs and compare, might reduce required time of mobile FPD panel and test setup time and labour.
The second, according to the present invention, some can not detected defective can detect by visual test by overall test.This has the effect that prevents from defective panel is sent to back technology fully.
The 3rd, owing in order to reduce the effort that price reduces drive IC quantity, proposed traditionally the spacing of pad is reduced by half to reduce the quantity of drive IC.But, when spacing reduces, need to reduce the spacing of checking between the contact unit, therefore there is this risk, promptly when connecting FPD, produce more continually so-called " pin disappearance (pin miss) ".By in same line, carry out in succession visual test and overall test the two, the present invention has the effect that prevents " pin disappearance ".
Although disclose the preferred embodiments of the present invention for illustrative purposes, it will be apparent to one skilled in the art that under the situation that does not break away from the disclosed spirit and scope of claims, might carry out various modifications, interpolation and replacement to the present invention.
Claims (31)
1. inspection method that is used for flat-panel monitor (FPD) comprises:
Loading technique, its FPD panel that is used for being sent to the FPD inspecting stand is installed to inspection pad;
Overall test technology, overall test unit and visual test whole unit are being formed at after wherein FPD testing fixture is installed on the described inspection pad, a plurality of probes via described overall test unit, electric power and control signal are applied to the channel part of described inspection pad, the output overall test shields on described FPD panel thus, so that detect the defective of described FPD panel via described overall test screen; And
Visual test process, it is used to make described visual test unit to contact with the channel part of described inspection pad, with at the described pad of described channel part short circuit, the output visual test shields on described FPD panel thus, so that detect line defect and first defective of described FPD panel via described visual test screen.
2. the method for claim 1 when wherein the two contacts with described pad simultaneously when described overall test unit and described visual test, is carried out described visual test process.
3. method as claimed in claim 2 wherein when described visual test unit is rotated when making the far-end of described visual test unit separate with described pad pivotally about described overall test unit, is carried out described overall test technology.
4. method as claimed in claim 2, wherein said visual test unit move up when receiving external force when making the far-end of described visual test unit separate with described pad, carry out described overall test technology.
5. method as claimed in claim 2, wherein move backward when making the far-end of described visual test unit separate with respect to described overall test unit according to the forward of one or more cylinders and reverse drive, carry out described overall test technology with described pad when described visual test unit.
6. testing fixture that is used for flat-panel monitor (FPD) comprises:
At least one visual test unit is used for the channel part of the pad that the described FPD panel of short circuit is connected to, and thus the visual test screen is outputed on the described FPD panel, so that detect line defect and first defective of described FPD panel; And
At least one overall test unit is used for via its a plurality of probes electric power and control signal being applied to described channel part, thus the overall test screen is exported on described FPD panel, so that detect the defective of described FPD panel;
Wherein said visual test unit and described overall test unit come the selectivity operation according to manual operation.
7. device as claimed in claim 6 further comprises:
The pivot unit is used for making described visual test unit to rotate pivotally about described overall test unit.
8. device as claimed in claim 6 further comprises:
Vertical moving unit, the external force that is applied to it by use moves up described visual test unit.
9. device as claimed in claim 6 further comprises:
Forward and reverse drive unit make described visual test unit move forward and backward about described overall test unit.
10. as claim 7 or 8 described devices, wherein said visual test unit comprises the visual test parts, with the described channel part of the described pad of short circuit when receiving external power.
11. device as claimed in claim 10, wherein said visual test parts have the shape of plate.
12. device as claimed in claim 10, wherein said visual test parts have the shape of probe.
13. device as claimed in claim 9, wherein said visual test unit comprises:
Conductive component has first end that is fixed to auxiliary frame, and described auxiliary frame is connected to described forward and reverse drive unit; And
The visual test parts are arranged on second end of described conductive component, with the time by described conductive component received power, and the described channel part of the described pad of short circuit.
14. device as claimed in claim 13, wherein said conductive component is a sheet copper.
15. a testing fixture that is used for flat-panel monitor (FPD) comprises:
At least one visual test unit; And
At least one overall test unit,
Wherein said visual test unit and described overall test unit are that selectivity drives, to allow optionally to carry out visual test and overall test at the FPD panel.
16. device as claimed in claim 15,
Wherein, described at least one overall test unit comprises the overall test contact unit, and described overall test contact unit comprises: framework has the part that is articulated and connected that is formed on described frame facet; Overall test probe shell is used for holding a plurality of overall test probes at the front end of described framework; And the driver coupling part, its rear end from described framework is outstanding;
Wherein said at least one visual test unit comprises the visual test contact unit, but its mode with pivotal rotation is hingedly connected to described framework, and has a plurality of visual test probes at the one end; And
Wherein said FPD testing fixture further comprises around the pivot unit, so that described visual test contact unit rotates pivotally with respect to described overall test contact unit.
17. device as claimed in claim 16, wherein said visual test contact unit comprises:
Subframe;
Web joint, the framework that it is coupled to described subframe and is hingedly connected to described overall test contact unit; And
Visual test probe supporter, it is coupled to the front side of described subframe, and is provided with a plurality of visual test probes at the one end.
18. device as claimed in claim 16, wherein said pivot unit comprises:
Driver, it has main body and inserts in the described main body to extend from described main body or to collapse into bar the described main body; And
The driver plate, it is hingedly connected to the rear end of the described framework of described overall test contact unit,
Wherein, the main body of described driver is coupled to described driver plate, and the bar of described driver is connected to actuator support,
Thus, the action of described pivot unit so that described visual test contact unit rotate pivotally with respect to described overall test contact unit.
19. device as claimed in claim 15,
Wherein said FPD display testing fixture further comprises:
Main connecting frame;
A plurality of vertical moving unit, described main connecting frame is coupled in its use by secure component; And
Sub-connecting frame, Biao Mian ad-hoc location is coupled to described vertical moving unit by the use of secure component thereon;
Wherein said at least one overall test unit comprises a plurality of overall tests unit, being coupled to described main connecting frame by the use of secure component makes them be spaced apart from each other with constant distance, each vertical moving unit between adjacent two the overall test unit on the described main connecting frame, and
Wherein said at least one visual test unit comprises a plurality of visual tests unit, and the lower surface that is coupled to described sub-connecting frame makes them be spaced apart from each other with constant distance.
20. device as claimed in claim 19, wherein each described overall test unit comprises:
Main body; With
Overall test probe shell is arranged on the front end of described main body and is configured to a plurality of overall tests probes are contained in wherein.
21. device as claimed in claim 20, wherein each described visual test unit comprises:
Be formed on the outstanding of its upper surface center;
A pair of fixed-wing, it is formed on the opposite end of described upper surface, opens with described protruding distance within a predetermined distance;
A pair of depression, it is formed between described outstanding and two described fixed-wings; And
Be arranged on the described visual test parts of its front end surface.
22. device as claimed in claim 21, wherein said visual test parts are made by conductive material.
23. device as claimed in claim 21, wherein said visual test parts have the shape of plate.
24. device as claimed in claim 21, wherein said visual test parts have the shape of probe.
25. device as claimed in claim 20, wherein said FPD testing fixture further comprises:
A plurality of elastomeric elements, insert respectively in vertical a plurality of holes by sub-connecting frame punching, make first end of each elastomeric element insert in one of depression of a visual test unit being associated, and second end of described elastomeric element is pushed and is supported by secure component.
26. device as claimed in claim 20, wherein said sub-connecting frame has:
A plurality of coupling slots are formed on its lower surface, are spaced apart from each other within a predetermined distance; And
A plurality of guide channels are formed on the opposite side of corresponding coupling slot, make per two guide channels and each coupling slot be spaced apart from each other within a predetermined distance in relative direction.
27. device as claimed in claim 20,
Wherein said sub-connecting frame is provided with a plurality of LM guidings at the one end surfaces towards described vertical moving unit, and
Wherein each described vertical moving unit comprises:
Main body is provided with one the guide rod that inserts in the described LM guiding at its first end;
Lid, its upper surface that is coupled to described main body is to be coupled to described sub-connecting frame; And
Bool, the use by secure component is connected to described lid, and the external force that is suitable for being applied to by use it moves up described sub-connecting frame.
28. device as claimed in claim 15, wherein said FPD testing fixture comprises:
Main connecting frame;
A pair of forward and reverse drive unit, the opposite end of being coupled to the lower surface of described main connecting frame by the use of fixed part regularly;
The pair of L-shaped parts, each is coupled in described forward and the reverse drive unit one in its first, and is formed with a plurality of elongated pores at its second portion, and described second portion is perpendicular to described first;
A pair of guide rod is being coupled to the described lower surface of described main connecting frame with described L shaped parts respectively with the preset distance spaced positions;
Described guide rod is coupled in pair of L M guiding respectively; And
Movable part is coupled to two described LM guidings regularly, and has and be formed on its opposite end, insert elongated pore a plurality of outstanding of described L shaped parts respectively, and described movable part also has stair-stepping front end;
Wherein said at least one overall test unit comprises a plurality of overall tests unit, is coupled to described main connecting frame by the use of secure component, be spaced apart from each other with constant distance, and
Wherein said at least one visual test unit comprises a plurality of visual tests unit, and the described stair-stepping front end that it is coupled to described movable part regularly is spaced apart from each other within a predetermined distance.
29. device as claimed in claim 28, wherein each described visual test unit comprises:
Sheet copper;
Adhere to and be fixed to the visual test parts of described copper coin; And
Described sheet copper is coupled to regularly the fixture of described movable part.
30. device as claimed in claim 29, wherein said visual test parts are elastomeric elements.
31. device as claimed in claim 30, wherein said elastomeric element is a conductive rubber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050109360 | 2005-11-15 | ||
| KR20050109360 | 2005-11-15 | ||
| KR1020060007227 | 2006-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1967317A true CN1967317A (en) | 2007-05-23 |
| CN100514126C CN100514126C (en) | 2009-07-15 |
Family
ID=37594228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100585881A Expired - Fee Related CN100514126C (en) | 2005-11-15 | 2006-03-22 | Inspection method and apparatus of flat panel display |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100611608B1 (en) |
| CN (1) | CN100514126C (en) |
| TW (1) | TW200719014A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354485B (en) * | 2007-07-23 | 2011-04-06 | 奇美电子股份有限公司 | System and method for testing display apparatus |
| CN102819126A (en) * | 2012-08-06 | 2012-12-12 | 深圳市华星光电技术有限公司 | Testing device and testing method |
| CN103728505A (en) * | 2012-10-15 | 2014-04-16 | 日本麦可罗尼克斯股份有限公司 | Detection device |
| CN112233580A (en) * | 2020-11-03 | 2021-01-15 | 天长市辉盛电子有限公司 | Base module of fast assembly LED module |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101312079B1 (en) | 2006-09-29 | 2013-09-26 | 주식회사 아이에스시 | Probe unit assembly and testing method of flat panel display using the same |
| KR100818563B1 (en) * | 2007-02-16 | 2008-04-02 | 안재일 | Method of testing for display panel and the device thereof |
| KR100902600B1 (en) | 2008-05-06 | 2009-06-11 | (주)유비프리시젼 | Contact block |
| KR100867308B1 (en) | 2008-06-05 | 2008-11-06 | 주식회사 코디에스 | Testing apparatus for flat panel display and method using the same |
| KR100995811B1 (en) * | 2008-11-07 | 2010-11-22 | 주식회사 크라또 | Probe unit being capable of delicate adjustment of probe |
| JP5156970B2 (en) * | 2008-11-10 | 2013-03-06 | 株式会社日本マイクロニクス | Probe unit for electrical inspection, electrical inspection device, and lighting inspection device |
| KR100916218B1 (en) | 2008-11-25 | 2009-09-08 | 주식회사 코디에스 | Multi testing apparatus for flat panel display |
| JP2010127706A (en) * | 2008-11-26 | 2010-06-10 | Micronics Japan Co Ltd | Probe unit and inspection apparatus |
| KR101003394B1 (en) * | 2008-12-11 | 2010-12-23 | 주식회사 크라또 | Probe unit including a detachable part using a sliding PCB type |
| KR100945951B1 (en) | 2009-01-15 | 2010-03-05 | 주식회사 코디에스 | Probe unit for both visual inspection and gross test |
| KR101021622B1 (en) | 2009-01-15 | 2011-03-17 | 주식회사 코디에스 | Multi testing apparatus for flat panel display |
| KR101618134B1 (en) | 2009-09-22 | 2016-05-09 | 엘지디스플레이 주식회사 | Auto probe test method |
| KR20150066018A (en) * | 2013-12-05 | 2015-06-16 | 주식회사 이엘피 | Display panel testing apparatus and method for testing amoled panel |
| KR101749888B1 (en) | 2015-12-24 | 2017-06-23 | 주식회사 하우토 | Inspection apparatus of display panel and inspection method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100815146B1 (en) * | 2002-01-24 | 2008-03-19 | 삼성전자주식회사 | Apparatus and method for detecting a line error of liquid crystal display panel |
| KR20050006521A (en) * | 2003-07-09 | 2005-01-17 | 삼성전자주식회사 | Liquid crystal display and test method thereof |
| KR100973803B1 (en) * | 2003-07-24 | 2010-08-03 | 삼성전자주식회사 | Liquid crystal display |
| KR100970246B1 (en) * | 2004-01-26 | 2010-07-16 | 삼성전자주식회사 | Thin Film Transistor Substrate And Method of Manufacturing LCD Panel Comprising The Same |
-
2006
- 2006-01-24 KR KR1020060007227A patent/KR100611608B1/en not_active IP Right Cessation
- 2006-02-09 TW TW095104290A patent/TW200719014A/en unknown
- 2006-03-22 CN CNB2006100585881A patent/CN100514126C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354485B (en) * | 2007-07-23 | 2011-04-06 | 奇美电子股份有限公司 | System and method for testing display apparatus |
| CN102819126A (en) * | 2012-08-06 | 2012-12-12 | 深圳市华星光电技术有限公司 | Testing device and testing method |
| CN103728505A (en) * | 2012-10-15 | 2014-04-16 | 日本麦可罗尼克斯股份有限公司 | Detection device |
| CN103728505B (en) * | 2012-10-15 | 2016-06-22 | 日本麦可罗尼克斯股份有限公司 | Check device |
| CN112233580A (en) * | 2020-11-03 | 2021-01-15 | 天长市辉盛电子有限公司 | Base module of fast assembly LED module |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100611608B1 (en) | 2006-08-11 |
| TW200719014A (en) | 2007-05-16 |
| CN100514126C (en) | 2009-07-15 |
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