CN100439922C

CN100439922C - Detecting apparatus of display panel

Info

Publication number: CN100439922C
Application number: CNB200510130433XA
Authority: CN
Inventors: 安斋正行
Original assignee: Micronics Japan Co Ltd
Current assignee: Micronics Japan Co Ltd
Priority date: 2004-12-17
Filing date: 2005-12-09
Publication date: 2008-12-03
Anticipated expiration: 2025-12-09
Also published as: KR20060069260A; JP2006194858A; KR100829892B1; TW200622386A; CN1790032A

Abstract

To provide an inspection system of a display panel for preventing probes and probe units from damages caused by dust adhered to electrodes of the display panel. This inspection system is used for the inspection of the rectangular display panel, which has a plurality of electrodes formed inside a plane in parallel to this panel by spacing in one direction. The system comprises a configuration area formation device to form configuration area, where the display panel is located, and a debris detector which detects any foreign material adhered to the electrodes of the display panel, arranged on the configuration area to output foreign material signal, if there is a foreign material.

Description

The testing fixture of display panel

Technical field

The present invention relates to a kind of testing fixture that as display panels, has the display panel of a plurality of electrodes that are configured at least one row.

Background technology

The device that the display panel that has a plurality of electrodes that are configured at least one row as display panels is checked generally has such structure, promptly, the a plurality of contacts that are contacted with the electrode of display panel are respectively promptly popped one's head in to be assembled in form probe unit on the substrate holder, this probe unit is assembled on the framework of device, display panel is placed on the inspecting stand that is disposed in the framework, by inspecting stand display panel is moved to X, Y, Z three directions, push the electrode and the probe of display panel thus.(with reference to No. 1044738 communiques of Japanese kokai publication hei, No. 7454677 communiques of Japanese kokai publication hei)

In such testing fixture, the status of electrically connecting between the probe and the electrode of display panel is attached to the dust considerable influence on the electrode of display panel, causes sometimes to be electrically connected badly, can not carry out correct inspection to display panel.

Big foreign matter is particularly arranged attached on the electrode time, when popping one's head in when being pressed in electrode, since probe be with big foreign matter state of contact under be pressed, thereby can damage probe self, in addition, use the miscellaneous part of the probe unit of probe to be pressed on big foreign matter, thereby can make the miscellaneous part breakage.

Summary of the invention

The objective of the invention is to prevent the probe that causes by the dust on the electrode that is attached to display panel and the damage of probe unit.

Testing fixture of the present invention, be used to check display panel, this display panel is that the display panel of rectangle and having is separated with a plurality of electrodes that formation is set at interval in face in parallel on a direction, such testing fixture comprises: configuring area forms device, and it forms the configuring area of the described display panel of configuration; Detection device for foreign matter, it detects the foreign matter on the described electrode that is attached to the display panel that is disposed at described configuring area, output foreign matter signal when having foreign matter; The panel clearing apparatus cleans described electrode; Described panel clearing apparatus comprises: installing plate (118,120), and it can move along the orientation of described electrode; Band roller (122,124), it be can be rotated to support on this installing plate, is wound with cleaning band (110,112); Take up roll (126,128), itself and this band roller are separated with the compartment of terrain configuration, are wound with described cleaning band, and are driven in rotation in order to reel this cleaning band; Idler roller (114,116) for being pushed on the described electrode to the part that described take up roll moves from described band roller of described cleaning band, supports from the back side of described cleaning band.。

Described detection device for foreign matter can comprise: line sensor, and its upper surface to described electrode is taken; Mobile device, it relatively moves this line sensor and described display panel on a described direction; Decision maker, its output signal judgement according to described line sensor has or not foreign matter, exports described foreign matter signal.

Described detection device for foreign matter can comprise: face sensor, and its scope to the upper surface that comprises described electrode is taken; Decision maker, its output signal according to this face sensor is judged having or not of foreign matter, exports described foreign matter signal.

Described detection device for foreign matter comprises: displacement meter, and its height and position to the upper surface of described electrode is measured; Mobile device, it relatively moves this displacement meter and described display panel on a described direction; Decision maker, its output signal judgement according to described displacement meter has or not foreign matter, exports described foreign matter signal.

Testing fixture can also comprise annunciator, and it receives described foreign matter signal, the report foreign matter exists.

Testing fixture can also comprise connection device, and it is used for described display panel is joined with respect to described configuring area, and this connection device receives described foreign matter signal, and this display panel is removed from described configuring area; Described configuring area forms device and comprises the platform that forms described configuring area.

Testing fixture can also comprise conveying device, and it is used to form described configuring area, and described display panel is delivered to described configuring area, and this conveying device receives described foreign matter signal, with this display panel from shown in configuring area remove.

Testing fixture also comprises the panel clearing apparatus that described electrode is cleaned.Described panel clearing apparatus and described display panel are relatively moved on a described direction.

In testing fixture of the present invention, by the foreign matter signal takes place, can this display panel be removed from testing fixture by staff or automation, thus, can prevent the probe of the probe unit that causes by foreign matter or the damage of miscellaneous part.

Description of drawings

Fig. 1 is the front elevation of outward appearance of the 1st embodiment of expression testing fixture of the present invention.

Fig. 2 is the right view of testing fixture shown in Figure 1.

Fig. 3 is the stereographic map that expression is disposed at a near embodiment of the cleaning portion of testing fixture shown in Figure 1 inside and inspection portion.

Fig. 4 is that expression is disposed at the panel clearing apparatus of testing fixture shown in Figure 1 inside and the amplification stereogram of various mobile devices.

Fig. 5 is the block diagram of an embodiment of the circuit of expression testing fixture shown in Figure 1.

Fig. 6 is the stereographic map of the embodiment the cleaning portion among the 2nd embodiment of expression testing fixture of the present invention near.

Fig. 7 is the internal structure of the 3rd embodiment of expression testing fixture of the present invention and the right view of outward appearance.

Fig. 8 is the internal structure of the 4th embodiment of expression testing fixture of the present invention and the right view of outward appearance.

Fig. 9 be testing fixture shown in Figure 8 the omission nearby of panel delivery position the vertical view of connection device.

Figure 10 is the stereographic map of a panel delivery position embodiment nearby of expression testing fixture shown in Figure 8.

Figure 11 is the internal structure of the 5th embodiment of expression testing fixture of the present invention and the right view of outward appearance.

Embodiment

(the 1st embodiment)

Referring to figs. 1 through Fig. 4, testing fixture 10 is applied to rectangular display panels is lighted inspection as the display panel 12 that will check visual.Testing fixture 10 is manufactured into: under the state with panel 12 tilted configuration, checked by operator's naked eyes.

In the following description, the direction at the long edge of panel 12 is called directions X (the 1st direction), the direction of the minor face edge of panel 12 is called Y direction (the 2nd direction), will be called Z direction (the 3rd direction) perpendicular to the direction of panel 12.In addition, will be called X-axis line, Y-axis line and z axis to the axis of X, Y and the extension of Z direction.And, the direction of a side of the visual panel of having lighted 12 of operator is called the place ahead, the direction of a side that will be opposite with visual side is called the rear.

Panel 12 has a plurality of the 1st electrodes 14 and a plurality of the 2nd electrode 16, these a plurality of the 1st electrodes 14 and a plurality of the 2nd electrode 16 with the rectangular limit of panel 12 in, on corresponding 2 ora terminalis in the limit of adjacent directions X and Y direction, on directions X and Y direction, be separated with the compartment of terrain and form (with reference to Fig. 3 and Fig. 4).

Testing fixture 10 comprises: the cleaning portion 20 that the electrode 14 of housing 18, counter plate 12 and electrode 16 clean and carry out the inspection portion 22 that lights inspection of panel 12.Cleaning portion 20 and inspection portion 22 are separated with the compartment of terrain and are assembled in the supporting member (not shown) that is arranged at housing 18 inside on directions X.

The front surface top of housing 18 forms facial 24.The face 24 that tilts has opening 26 and opening 28, and this opening 26 and opening 28 are used for carrying out at the position corresponding with the position of cleaning portion 20 and inspection portion 22 handing-over and the visual examination of panel 12.Opening 26 and opening 28 have the rectangular shape that big and its bight of ratio panels 12 forms fillet.

Inspection portion 22 comprises detection pedestal 32, a plurality of detection pieces 34 that are disposed at detection pedestal 32 that are formed with opening 30, the inspecting stand 36 that bears panel 12.Opening 30 is used as the hole of the visual panel of having lighted 12 of operator, and this opening 30 has the rectangular shape that big and its bight of ratio panels 12 forms fillet.

Survey piece 34 and make the central side of its front end lateral openings 30 outstanding, so that see at that time from the Z direction, the front end that is disposed at a plurality of probes of respectively surveying piece 34 is overlapping with electrode 14 and electrode 16 on the panel 12 that is disposed at inspecting stand 36.Surveying pedestal 32 and inspecting stand 36 all is to be supported on housing 18, and probe can be that pin type, vane type etc. are any.

Cleaning portion 20 comprise counter plate 12 carry out the pre-calibration device 38 of pre-calibration and be positioned at pre-calibration device 38 around and be disposed at the panel clearing apparatus (the 1st clearing apparatus) 40 on the directions X of housing 18 and be disposed at panel clearing apparatus 42 (the 2nd clearing apparatus) on the Y direction.

The panel clearing apparatus of directions X (the 1st clearing apparatus) 40 makes it move to directions X, Y direction and Z direction by X mobile device 44 (the 1st mobile device), Y mobile device 46 (the 2nd mobile device) and Z mobile device 48 (the 3rd mobile device), so that it cleans the electrode 14 that is arranged in directions X.

The panel clearing apparatus of Y direction (the 2nd clearing apparatus) 42 makes it move to directions X, Y direction and Z direction by X mobile device 50 (the 4th mobile device), Y mobile device 52 (the 5th mobile device) and Z mobile device 54 (the 6th mobile device), so that it cleans the electrode 16 that is arranged in the Y direction.

Testing fixture 10 also comprises a pair of panel carrying device 56,56.The panel 12 that this

panel carrying device

56,56 synchronously will be disposed in the inspection portion 22 is carried to inspection portion 22 from cleaning portion 20 to the panel 12 that cleaning portion 20 carries, will be disposed in the cleaning portion 20 from inspection portion 22.

Each panel carrying device 56 has the tray moving mechanism 58 that is supported on housing 18, makes it respectively to a pair of carriage 62,62 that directions X moves be assembled in a pair of arm 64 on each carriage 62 by tray moving mechanism 58.

Each arm 64 has 2 anchor clamps 66,66 that are separated with the interval setting at directions X.Each arm 64 drives by the reciprocating drive unit as cylinder mechanism 68 and moves to the Y direction, and the anchor clamps 66 that make this arm 64 carry out clamping, the releasing of panel 12 with the anchor clamps 66 of the arm 64 on opposite.

When two arms 64,64 moved towards the direction that is close, the anchor clamps 66 common clampings of this two arm 64,64 were disposed at the opposite side to the directions X extension of the panel 12 in cleaning portion 20 or the inspection portion 22.

Move to directions X by carriage 62 and carriage 62, thereby will carry to cleaning portion 20 to inspection portion 22 or from inspection portion 22 from cleaning portion 20 by the panel 12 of anchor clamps 66 clampings of two arms 64, arm 64.

By arm 64,64 is moved towards the direction that is separated in inspection portion 22 or cleaning portion 20, thereby the panel 12 that is delivered to inspection portion 22 or cleaning portion 20 is discharged from anchor clamps 66, deliver to inspection portion 22 or cleaning portion 20.

(about inspecting stand)

Inspecting stand 36 comprises the Z platform 70 that is supported on the housing 18, be assembled in the XY θ platform 72 on the Z platform 70 and be assembled in chuck top 74 on the XY θ platform 72.

Chuck top 74 vacuum suction configuration panel 12 thereon.Though not shown, be disposed in the chuck top 74 from the illuminating back of the body illuminator at the back side.

Be disposed in the chuck top 74 back of the body illuminator from the power supply of testing fixture 10 be switched on begin to continue to light be stopped to this power supply till.

Chuck top 74 has 2 groups of push rods 76 and register pin 78.These 2 groups of push rods 76 and register pin 78 are used to locate and make the allocation position of the electrode 14 of the panel 12 that is born and electrode 16 corresponding with the position of surveying piece 34.

When panel 12 was disposed at the upper surface at chuck top 74, this panel 12 was pressed on the register pin 78 that is disposed at a side opposite with these push rods by 2 groups of push rods 76 and push rod 76.Thus, make panel 12 with respect to chuck top 74 and then with respect to surveying piece 34 location.

XY θ platform 72 makes chuck top 74 and then is making its panel that bears 12 with respect to surveying piece 34 when directions X and Y direction move, and, it is rotated to an angle around the axis that extends to the Z direction.Thus, can make chuck 74 and the panel 12 that born is correctly located with respect to surveying piece 34.

The Z platform 70 of inspection portion 22 makes chuck top 74 and then makes its panel that bears 12 with respect to surveying piece 34 across XY θ platform 72 and moves to the Z direction.Thus, the electrode 14 that is installed on the panel 12 on the chuck top 74 contacts and is electrically connected with the probe of surveying piece 34 with electrode 16.

(about the pre-calibration device)

Pre-calibration device 38 comprises that Z platform 80 on the supporting member that is assembled in housing 18 and the panel that is assembled on the Z platform 80 bear portion 82.

In testing fixture 10, panel bears portion 82 and forms device as the configuring area of the configuring area that forms configured board 12 and work.

Panel bears portion 82 to have the panel 12 that is used for bearing and is disposed at panel and bears 2 groups of middle position of portion 82 to

central component

84,84.

Panel 12 is disposed at panel when bearing the upper surface of portion 82, by 2 groups central component 84 is moved towards the directions that are close, and panel 12 is by to the center.Thus, this panel 12 is born portion 82 and then relative panel clearing apparatus 40, panel clearing apparatus 42 and carriage 62,62 location with respect to panel.

(about the panel clearing apparatus)

The Z platform 80 of cleaning portion 20 directly moves to the Z direction with respect to 2 groups of carriages 62,62 by making panel bear portion 82, can make to be installed on the cleaning position of readiness that panel 12 that panel bears portion 82 moves to the panel clearing apparatus 42 of the panel clearing apparatus 40 of directions X and Y direction.

Mobile device 44, mobile device 46, mobile device 48, mobile device 50, mobile device 52, mobile device 54 all are respectively to be made of line slideway that is used as fixed part and the line block that is used as movable member like that as described below.

The Y mobile device 46 that is used for the panel clearing apparatus 40 of directions X has the line slideway 86 that extends to the Y direction that is supported on the housing 18 and is assembled in line block 88 on the line slideway 86 movably in the Y direction.

The X mobile device 44 that is used for the panel clearing apparatus 40 of directions X has with single armed beam shape and is assembled in line block 88 and the line slideway 90 that extends to directions X and be assembled in line block 92 on the line slideway 90 movably at directions X.

The Z mobile device 48 that is used for the panel clearing apparatus 40 of directions X has the line slideway 94 that is assembled in line block 92 and extends to the Z direction and is assembled in line block 96 on the line slideway 94 movably in the Z direction.

The X mobile device 50 that is used for the panel clearing apparatus 42 of Y direction has the line slideway 98 that is supported on housing 18 and extends to directions X and is assembled in line block 100 on the line slideway 98 movably at directions X.

The Y mobile device 52 that is used for the panel clearing apparatus 42 of Y direction has with single armed beam shape and is assembled in line slideway 102 on the line block 100 and that extend to the Y direction and is assembled in line block 104 on the line slideway 102 movably in the Y direction.

The Z mobile device 54 that is used for the panel clearing apparatus 42 of Y direction has the line slideway 106 that is assembled in line block 104 and extends to the Z direction and is assembled in line block 108 on the line slideway 106 movably in the Z direction.

Line slideway 86,90,94,98,102 and 106 and line block 88,92,96,100,104 and 108 constitute the part of linear guide at least.

As shown in Figure 4, Z mobile device 48 and Z mobile device 54 work as control device respectively, this control device control pushing force, this pushing force make directions X panel clearing apparatus 40 cleaning with 110 and the cleaning of the panel clearing apparatus 42 of Y direction contact with electrode 14 and electrode 16 in the position of idler roller 114 and idler roller 116 respectively with 112.

As shown in Figure 4, the panel clearing apparatus 40 of directions X and the panel clearing apparatus 42 of Y direction, except cleaning be with 110 and cleaning be with 112 with idler roller 114 and idler roller 116, also have the installing plate 118 that is installed on the line block 96 respectively and be installed on installing plate 120 on the line block 108, be separated with the compartment of terrain at directions X and be disposed at band roller 122 on the installing plate 118, take up roll 126 and be disposed at band roller 124, take up roll 128 on the installing plate 120 being separated with the compartment of terrain on the Y direction.

The cleaning of panel clearing apparatus 40 with 110, the cleaning of idler roller 114, band roller 122, take up roll 126 and panel clearing apparatus 42 is with 112, idler roller 116, band roller 124 and take up roll 128, protect by the cover 132 that is installed on the cover 130 on the installing plate 118 and be installed on the installing plate 120 respectively.

Cleaning is with 110, idler roller 114, band roller 122 and take up roll 126 and cleaning are with 112, idler roller 116, band roller 124 and take up roll 128 can be installed on cover 130 respectively and cover on 132.

The idler roller 114 of the panel clearing apparatus 40 of directions X, band roller 122 and take up roll 126 are separated with the compartment of terrain setting and extend to the Y direction in parallel to each other on directions X.The idler roller 116 of the panel clearing apparatus 42 of Y direction, band roller 124 and take up roll 128 are separated with the compartment of terrain setting and extend to directions X in parallel to each other on the Y direction.

Idler roller 114 is being disposed on the directions X between band roller 122 and the take up roll 126, and it more leans on panel 12 1 sides than band roller 122 and take up roll 126; Idler roller 116 is being disposed on the Y direction between band roller 124 and the take up roll 128, and it more leans on panel 12 1 sides than band roller 124 and take up roll 128.

The cleaning be with 110 and the cleaning be with 112 be wound in respectively the band roller 122 and the band roller 124 on.Cleaning with 110 and cleaning extend through panel 12 1 sides of idler roller 116 through panel 12 1 sides of idler roller 114 and from band roller 124 from band roller 122 respectively with 112, its leading section is wound on take up roll 126 and the take up roll 128 at least.

The panel clearing apparatus 40 of directions X and the panel clearing apparatus 42 of Y direction make take up roll 126 and take up roll 128 rotations by not shown drive unit respectively, are with 110 to make band roller 122 driven reaching by cleaning be with 112 to make band roller 124 driven by cleaning.

As cleaning with 110, cleaning can use band on a side of resin strip of fine lapping compound or adhesive applicating, strap etc. with 112.When using strap, can when cleaning, add on the strap by the liquid that water is the same.

Roller 114, roller 116, roller 122, roller 124, roller 126, roller 128 all have long size portion.Can use other members such as spool to replace these rollers.

(about foreign body detecting device)

Testing fixture 10 also is included as mobile device 144 and the mobile device 146 that the electrode 14 that is attached to panel 12 and the foreign matter on the electrode 16 is detected and be disposed at directions X foreign matter sensor 140 and Y direction foreign matter sensor 142 in the cleaning portion 20, foreign matter sensor 140 and foreign matter sensor 142 are moved to directions X and Y direction with respect to panel 12 respectively.

Foreign matter sensor 140 and foreign matter sensor 142 are respectively in Y direction and directions X a plurality of sensor elements as the CCD element to be configured to a line sensor that is listed as, so that it is taken the upper surface of electrode 14 and electrode 16 respectively.

The output signal of foreign matter sensor 140, foreign matter sensor 142 is supplied to foreign matter decision maker 148 shown in Figure 5.Foreign matter decision maker 148 is judged having or not of foreign matter according to the output signal of foreign matter sensor 140, foreign matter sensor 142, when having foreign matter, exports the foreign matter signal that shows its existence to control device 150.

Mobile device 144 and mobile device 146 are made of linear motor respectively, this linear motor use be installed on movably on the directions X on the line slideway 90 or be installed on line block 152 on the line slideway 102 on the Y direction movably, be installed on the line slideway 154 on the line block 152 and be installed on line block 156 on the line slideway 154 movably to the Z direction.

Foreign matter sensor 140 and foreign matter sensor 142 are installed on the line block 156 by the installation component 158 of L font respectively.

When control device 150 was imported at the foreign matter signal, control report device 153 was so that its report has foreign matter to be attached on the electrode 14 or electrode 16 of this display panel 12.

Thus, control device 150 constitutes detection device for foreign matter with foreign matter sensor 140 and foreign matter sensor 142, mobile device 144 and mobile device 146, decision maker 148 etc., this detection device for foreign matter detects the electrode 14 that is attached to panel 12, the foreign matter on the electrode 16, output foreign matter signal when having foreign matter to exist.

Control device 150 is also controlled inspecting stand 36, pre-calibration device 38, panel clearing apparatus 40 and panel clearing apparatus 42, mobile device 44, mobile device 46, mobile device 48, mobile device 50, mobile device 52 and mobile device 54, panel carrying device 56 and panel carrying device 56, panel filming apparatus 155 and panel lamp device 157 etc.

Panel filming apparatus 155 comprises the mobile device 144 of foreign matter sensor 140, foreign matter sensor 142 and foreign matter sensor 140 and the mobile device 146 of foreign matter sensor 142.Panel lamp device 157 comprises to be surveyed pedestal 32 and surveys piece 34.

Survey pedestal 32, survey piece 34, inspecting stand 36, pre-calibration device 38, panel clearing apparatus 40, panel clearing apparatus 42, mobile device 44, mobile device 46, mobile device 48, mobile device 50, mobile device 52, mobile device 54, mobile device 144, mobile device 146, panel carrying device 56, foreign matter sensor 140, foreign matter sensor 142 grades constitute: promptly, at chuck top 74 and panel bear portion's 82 updips when tiltedly bearing each panel 12, carry this panel 12 with the state that tilts, in that this panel 12 is under the state of inclination, carry out cleaning to this panel 12, inspection of foreign substance and light inspection.

(action of the 1st embodiment)

Testing fixture 10 is action as follows for example.

At first, the display panel 12 that will be checked by staff is disposed on the pre-calibration device 38 of cleaning portion 20.

Next, by control device 150 control pre-calibration devices 38, so that its counter plate 12 carries out the center.Thus, each of pre-calibration device 38 is driven central component 83, and panel 12 is located in the central authorities that panel bears portion 82, and keeps this state.

Next, by control device 150 control mobile devices 44, mobile device 50, mobile device 46 and mobile device 52.Thus, panel clearing apparatus 40 and panel clearing apparatus 42 are moved by these mobile device respectively, and make when the Z direction is seen clearing apparatus 40, clearing apparatus 42, and it is 110 overlapping with electrode 14 that cleaning is with, and cleaning is with 112 overlapping with electrode 16.

Next, by control device 150 control Z mobile device 48 and Z mobile devices 54, so that panel clearing apparatus 40 and panel clearing apparatus 42 move to panel 12.Thus, the cleaning that is contacted with panel 12 1 sides that are positioned at idler roller 114 respectively of an end of electrode 14 and electrode 16 with 110 position and the cleaning of panel 12 1 sides that is positioned at idler roller 116 with 112 position.

Next, by the drive unit of control device 150 control take up rolls 126 and take up roll 128 so that cleaning be with 110 and cleaning be with 112 to pull out from band roller 122 and band roller 124 respectively.Thus, make 128 rotations of take up roll 126 and take up roll, the cleaning of reeling respectively be with 110 and cleaning be with 112.In addition, the band roller 122 and the band roller 124 respectively by the cleaning that is drawn out with 110 and the cleaning the driven rotation with 112 along with the rotation of take up roll 126 and take up roll 128.

Under above-mentioned state, move to an other end end of the panel 12 of the panel clearing apparatus 42 that makes the panel clearing apparatus 40 of directions X and Y direction by X mobile device 44 and Y mobile device 52 on directions X and the Y direction respectively.At this moment, cleaning with 110 and cleaning with 112 respectively at the position of panel 12 1 sides of idler roller 114 and the position of panel 12 1 sides of idler roller 116 contact with electrode 14 and electrode 16, and move to the contact of directions X and Y direction, thus cleaning with 110 and cleaning wipe the foreign matters such as dust that are attached on electrode 14 and the electrode 16 with 112.

As mentioned above, when carrying out the cleaning of panel 12, by control device 150 control panel filming apparatus 155.Thus, make foreign matter sensor 140 and panel clearing apparatus 40 synchronously move, be made by mobile device 146 foreign matter sensor 142 and panel clearing apparatus 42 synchronously to move to the other end an end of the panel 12 on the Y direction to the other end in an end of the panel 12 from the directions X by mobile device 144, the electrode 14 and the electrode 16 of counter plate 12 are taken simultaneously.

The output signal of foreign matter sensor 140 and foreign matter sensor 142 is supplied to foreign matter decision maker 148, is used for foreign matter decision maker 148 and judges having or not of foreign matter.

Foreign matter decision maker 148 is when having foreign matter to exist, and the foreign matter signal that its foreign matter of expression is existed exports control device 150 to, and when not having foreign matter, it does not have the normal signal of foreign matter to export control device 150 to expression.

When input foreign matter signal, 150 pairs of annunciators 153 of control device are controlled, and making on its electrode of reporting this display panel 12 14 or the electrode 16 has foreign matter to adhere to, and, 150 pairs of pre-calibration devices 38 of control device are controlled, and make it remove the maintenance of counter plate 12.Annunciator 153 can use as display device of hummer, display lamp, CRT and so on etc.

Thus, the operator can know that this panel 12 has foreign matter to exist, and this panel 12 is removed from pre-calibration device 38, and new panel 12 is disposed on the pre-calibration device 38.

When new panel 12 was configured on the pre-calibration device 38, control device 150 was carried out above-mentioned control once more, so that new panel 12 is cleaned and inspection of foreign substance.

During normal signal, 150 pairs of pre-calibration devices 38 of control device are controlled in input, so that it delivers to the conveying device 56 of a side with this panel 12, and the panel 12 that finishes from the conveying device receiving check of opposite side.

Parallel with above-mentioned cleaning and inspection of foreign substance, the visual lamp device that is disposed at the panel 12 on the inspecting stand 36 carries out as follows.

At first, 150 pairs of inspecting stands 36 of control device are controlled so that its counter plate 12 positions with respect to being disposed at the probe of surveying on the piece 34, then with the electrode 14 of panel 12 and electrode 16 by being pressed on these probes.

Next, control device 150 counter plate lamp devices 56 are controlled, to each probe energising.At this constantly, the back of the body illuminator that is disposed on the chuck top 74 is lighted.Thus, can carry out visual examination by operator's counter plate 12.

The visual result who lights inspection will represent that by the operator non-defective unit signal of non-defective unit or the defective products signal of expression defective products input to control device 150.

Import normal signal from foreign matter decision maker 148 to control device 150, and when importing any of non-defective unit signal or defective products signal again, control device 150 counter plate conveying devices 56, panel carrying device 56 are controlled, so that it moves to pre-calibration device 38 with the panel on the inspecting stand 36 12, and the panel on the pre-calibration device 38 12 is moved to inspecting stand 36.

Between pre-calibration device 38 and conveying device 56, carry out panel when handing-over, central component 84 is carried out the release of the panel 12 that clamping and checks the clamping of the panel that finishes.

Control device 150 is also controlled annunciator 153, so that the panel 12 of its report in inspecting stand 36 is carried is non-defective unit or defective products.Thus, the panel 12 that the operator will be delivered to pre-calibration device 38 takes off from pre-calibration device 38, according to its non-defective unit and it is moved to the position of regulation whether.

After, parallel carry out inspection that aforesaid foreign matter has or not and panel 12 visual lighted inspection.

(the 2nd embodiment)

In the above-described embodiments, it is 2 groups respectively that clearing apparatus 40, clearing apparatus 42 and foreign matter sensor 140, foreign matter sensor 142 are set, and replaces, and also can only establish 1 group, carries out the electrode 14 of panel 12, the cleaning and the inspection of foreign substance of electrode 16.

With reference to Fig. 6, in the cleaning portion 160, replace and not to be provided with clearing apparatus 42 and foreign matter sensor 142 and to make θ platform 162 be supported on not shown Z platform 80, and, by making panel support 82 be supported on θ platform 162, thereby form pre-calibration device 38, this θ platform 162 makes panel support 82 around θ axis rotation at least 90 degree that extend to the Z direction.

Cleaning portion 160 carries out the cleaning and the inspection of foreign substance of the electrode 14 and the electrode 16 of panel 12 as described below.

At first, clean by the either party in 40 pairs of electrodes 14 of clearing apparatus and the electrode 16, and, take by foreign matter sensor 140.

Next, make the angle θ (90 degree) of panel support 82 rotation regulation by θ platform 162 after, clean by the opposing party in 40 pairs of electrodes 14 of clearing apparatus and the electrode 16, and, take by foreign matter sensor 140.

Next, according to the output signal of foreign matter sensor 140, in foreign matter decision maker 148 shown in Figure 5, judge having or not of foreign matter.

In the embodiment shown in fig. 6, also can make panel support 82 be supported on Z platform 80, make Z platform 80 be supported on θ platform 162.

(the 3rd embodiment)

The present invention also is not limited to such device, that is, tilt to support each panel 12, under the state that tilts, carry this panel 12 by chuck top 74 and panel support 82, under the state that this panel is tilted, to this panel 12 clean, inspection of foreign substance and light the device of inspection.

The present invention can also be applicable to the testing fixture of other types such as following these devices, for example,, carry under this state to each panel 12 of upper support by chuck top 74 and panel support 82, under this state, clean, inspection of foreign substance and light the device of inspection; , clean and inspection of foreign substance under this state to each panel 12 of upper support by panel support 82, it is turned to delivering to conveying device after the heeling condition, under the state that tilts, light the testing fixture of inspection.

With reference to Fig. 7, in the testing fixture 164, pre-calibration device 38 has the whirligig 165 that it is rotated to an angle around the axis that extends to directions X.

Testing fixture 164 also comprises box portion 168 and junction 172, and this box portion 168 is contained in a plurality of panels 12 in the box 166 with horizontality, and this junction 172 disposes the robot 170 that panel 12 is joined with respect to pre-calibration device 38 and box 166.

Robot 170 moves to the position of box regulation with the panel 12 that checks out from panel support 82, and new panel 12 is moved to panel support 82 from other positions of box 166, is general handing-over robot.

Testing fixture 164 is panel 12 handing-over of carrying out 170 of panel support 82 and aut.eq. under horizontality, counter plate 12 cleans and inspection of foreign substance, by whirligig 165 Z platform 80 and panel support 82 are turned to, thereby under heeling condition, carry out conveying device 56, the panel handing-over between conveying device 56 and the panel support 82.

In testing fixture 164, inspecting stand 36, pre-calibration device 38, conveying device 56, control device 150 etc. similarly move with testing fixture 10.

(the 4th embodiment)

With reference to Fig. 8 to Figure 10, testing fixture 174 comprises the panel delivery section 176 that is formed at cleaning portion 20 downsides.

Panel delivery section 176 disposes conveying device 178, a plurality of align member 180 and connection device 182, these conveying device 178 counter plates 12 are carried, this align member 180 makes the panel 12 that transports with respect to panel clearing apparatus 40 and panel clearing apparatus 42 and foreign matter sensor 140 and foreign matter sensor 142 location, and this connection device 182 carries out with respect to panel 12 handing-over of panel support 82 with conveying device 178.

Conveying device 178 has a plurality of roller assemblys 184, and this roller assembly 184 is installed on a plurality of rollers each interval on the rotating shaft axis direction on the turning axle respectively with interval.Roller assembly 184 is separated with on the throughput direction (being directions X on the example in diagram) of panel 12 at interval, but and free rotary ground supporting on the long rectangular frame 186 of directions X, also make its synchronous rotation by not shown driving mechanism.

Align member 180 is disposed at by the panel 12 of the connection device 182 decision delivery position with respect to conveying device 178.

Identical among align member 180 and Fig. 3 to central component 84, by the relative limit with relative align member 180 retainer panel 12, thereby counter plate 12 carries out the center, and, panel 12 is maintained irremovable state.

Align member 180 before panel 12 is transported to delivery position be in the top portion's panel of being positioned at conveying device 178 carry the road below the state of position of readiness under standby.

But when panel 12 was transported to delivery position, the upper end of align member 180 was projected into panel and carries road, retainer panel 12.

In addition, align member 180 returns position of readiness when the cleaning of panel 12 and inspection of foreign substance finish.

Connection device 182 has pair of guide rails 188, carriage 190 and a plurality of panel clamping device 192, this pair of guide rails 188 is separated with on directions X and is provided with at interval and direction extension forwards, backwards, this carriage 190 is supported on two guide rails 188 movably at fore-and-aft direction, and these panel clamping devices 192 are installed on the downside of carriage 190.

Carriage 190 makes a pair of movable body 196 of the extension of direction forwards, backwards that is separated with the compartment of terrain setting on directions X be supported on guide rail 188 movably, is installed on two movable bodies 196 at a pair of cramp bar 198 that extends to directions X that is separated with the compartment of terrain setting on the fore-and-aft direction to each other.Movable body 196 by not shown drive source make its forwards, backwards direction move.

Carriage 190 only when carrying out panel 12 with respect to the handing-over of conveying device 178, moves to the top of the delivery position that is joined by connection device 182.

Panel clamping device 192 is the reciprocating mechanisms as cylinder mechanism, has by being supplied to the piston rod that compressed-air actuated cylinder barrel and relative this cylinder barrel move back and forth.In addition, when the reciprocating direction of piston rod was above-below direction, cylinder was installed on the downside of cramp bar 198, and piston rod is stretched synchronously.

Each panel clamping device 192 has the absorption of carrying out panel 12 and removes the suction tray 200 of its absorption in the lower end of connecting rod.Counter plate 12 adsorbs suction tray 200 by being connected in not shown vacuum source, by opening the absorption of removing panel 12 into atmospheric pressure.

In testing fixture 174, be positioned at a plurality of roller assemblys 184 of cleaning portion 20 belows and panel clamping device 192 and form device as the configuring area of the configuring area that forms panel 12 and work.

Testing fixture 174 moves as follows.

When by conveying device 178 panel 12 being delivered to the delivery position of cleaning portion 20 belows, align member 180 moves.Thus, this panel 12 is located, and is maintained and can not moves with respect to clearing apparatus 40, clearing apparatus 42 and foreign matter sensor 140, foreign matter sensor 142.

Next, identical with the situation of testing fixture 10, clearing apparatus 40 and clearing apparatus 42 are driven by

drive unit

44,46,48 and drive

unit

50,52,54 respectively, are with the electrode of counter plates 12 to clean by these cleanings.

In addition, identical with the situation of testing fixture 10, foreign matter sensor 140 and foreign matter sensor 142 are driven by drive unit 144, drive unit 146 respectively, and the electrode of counter plate 12 is photographed.The output signal of foreign matter sensor 140 and foreign matter sensor 142 is applied to the judgement that 148 pairs of foreign matters of foreign matter decision maker shown in Figure 5 have or not.

When having foreign matter, align member 180 drops to position of readiness, thus, this panel 12 is delivered to than delivery position by conveying device 178 and more removes the position by the defective products in downstream, removes the position at defective products and by staff or handing-over aut.eq. it is removed from conveying device 178.

When not having foreign matter, carriage 190 moves to the top of conveying device 178, and panel clamping device 192 moves.Thus, panel 12 is adsorbed dish 200 absorption, is raised to the top.

Next, carriage 190 moves to the top of pre-calibration device 38, and the panel 12 that is keeping is delivered on the pre-calibration device 38.

Next, pre-calibration device 38 moves, carry out panel 12 to center and clamping.

Thereafter, inspecting stand 36, pre-calibration device 38, conveying device 56, control device 150 etc. carry out the action same with testing fixture shown in Figure 7 164.Thus, check that the panel 12 that finishes is sent on the pre-calibration device 38.

Check that the panel 12 that finishes is sent to carriage 190 from pre-calibration device 38, moves to conveying device 178 by carriage 190.

Check the panel 12 that finish be transported to the non-defective unit recovery position of than delivery position more leaning on downstream, at non-defective unit reclaim position by staff or handing-over aut.eq. it from conveying device 178 removed thereafter.

(the 5th embodiment)

As foreign matter sensor 140, foreign matter sensor 142, can use C CD camera 204 to replace the use line sensor like that by testing fixture 202 as shown in figure 11 as video camera.CCD camera 204 is disposed at housing 18, works as the face sensor that the whole front panel on the pre-calibration device 38 12 is photographed.

Though testing fixture 202 is examples of the testing fixture of Fig. 7 and type shown in Figure 8, testing fixture shown in Figure 1 also can use above-mentioned face sensor.

In the above-described embodiments, though whichsoever all be after the cleaning that clearing apparatus carries out, having or not of foreign matter to be checked, also can after carrying out the inspection that foreign matter has or not, clean by counter plate 12.

Utilizability on the industry

1. automatic lighting inspection apparatus, the face sensor of the CCD camera that will photograph to the panel on the inspecting stand 36 and so on is disposed at inspection portion 22, carries out the Flame Image Process of the output signal of this face sensor in control device 150 or data processing equipment.

2. the testing fixture of a display panel can be checked the display panel with a plurality of electrodes that are configured to 1 row, or the display panel that has the other types such as display panel of a plurality of electrodes respectively at the edge part corresponding with 2,3 or 4 limits.

3. the testing fixture of a display panel can be checked the display panel of other types such as the glass substrate of enclosing the display panels that liquid crystal is arranged, Plasmia indicating panel, organic EL.

4. a testing fixture as the panel clearing apparatus of other types, can use the device of the other types as the air injection type device.

5. testing fixture replaces line sensor and uses the displacement meter as height sensor with the surveyed area that cleans at least to be used as the foreign matter sensor.

The present invention is not limited to the foregoing description, can carry out various changes under the aim of the present invention not breaking away from.

Claims

1. the testing fixture of a display panel is used to check display panel, and this display panel is the display panel of rectangle and has a plurality of electrodes that are separated with compartment of terrain formation in face in parallel on a direction, it is characterized in that, comprising:

Configuring area forms device, and it forms the configuring area of the described display panel of configuration; Detection device for foreign matter, it detects the foreign matter on the described electrode that is attached to the display panel that is disposed at described configuring area, output foreign matter signal when having foreign matter; The panel clearing apparatus cleans described electrode;

Described panel clearing apparatus comprises: installing plate (118,120), and it can move along the orientation of described electrode; Band roller (122,124), it be can be rotated to support on this installing plate, is wound with cleaning band (110,112); Take up roll (126,128), itself and this band roller are separated with the compartment of terrain configuration, are wound with described cleaning band, and are driven in rotation in order to reel this cleaning band; Idler roller (114,116) for being pushed on the described electrode to the part that described take up roll moves from described band roller of described cleaning band, supports from the back side of described cleaning band.

2. the testing fixture of display panel according to claim 1 is characterized in that, described detection device for foreign matter comprises: line sensor, and its upper surface to described electrode is photographed; Mobile device, it relatively moves this line sensor and described display panel on a described direction; Decision maker, its output signal judgement according to described line sensor has or not foreign matter, exports described foreign matter signal.

3. the testing fixture of display panel according to claim 2 is characterized in that, described detection device for foreign matter comprises: face sensor, and its scope to the upper surface that comprises described electrode is photographed; Decision maker, its output signal judgement according to this face sensor has or not foreign matter, exports described foreign matter signal.

4. the testing fixture of display panel according to claim 1 is characterized in that, described detection device for foreign matter comprises: displacement meter, and its height and position to the upper surface of described electrode is measured; Mobile device, it relatively moves this displacement meter and described display panel on a described direction; Decision maker, its output signal judgement according to described displacement meter has or not foreign matter, exports described foreign matter signal.

5. the testing fixture of display panel according to claim 1 is characterized in that, described testing fixture also comprises annunciator, and it receives described foreign matter signal, and the report foreign matter exists.

6. the testing fixture of display panel according to claim 1, it is characterized in that, described testing fixture also comprises connection device, it is used for described configuring area is joined described display panel, this connection device receives described foreign matter signal, and this display panel is removed from described configuring area; Described configuring area forms device and comprises the platform that forms described configuring area.

7. the testing fixture of display panel according to claim 1, it is characterized in that, described testing fixture also comprises conveying device, it is used to form described configuring area, and be used for described display panel is delivered to described configuring area, after this conveying device receives described foreign matter signal, with this display panel from shown in configuring area remove.

8. the testing fixture of display panel according to claim 1 is characterized in that, described panel clearing apparatus and described display panel relatively move on a described direction.