CN101887098B - Touch panel inspection apparatus - Google Patents

Touch panel inspection apparatus Download PDF

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Publication number
CN101887098B
CN101887098B CN2010101763420A CN201010176342A CN101887098B CN 101887098 B CN101887098 B CN 101887098B CN 2010101763420 A CN2010101763420 A CN 2010101763420A CN 201010176342 A CN201010176342 A CN 201010176342A CN 101887098 B CN101887098 B CN 101887098B
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CN
China
Prior art keywords
signal
distribution
axle
axle distribution
feed mechanism
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Expired - Fee Related
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CN2010101763420A
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Chinese (zh)
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CN101887098A (en
Inventor
山下宗宽
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Nidec Corp
Nidec Read Corp
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Nidec Corp
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Publication of CN101887098A publication Critical patent/CN101887098A/en
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Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/07Non contact-making probes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

The invention provides a touch panel inspection apparatus, characterized in that it includes: a first signal supply mechanism, supplying an alternating-current signal for implementing conducting inspection of x shaft wiring of the detected object; a second signal supply mechanism, supplying an alternating-current signal for implementing conducting inspection of y shaft wiring of the detected object; a third signal supply mechanism, supplying an alternating-current signal for implementing short circuit detection of the x shaft wiring and the adjacent y shaft wiring of the detected object; an inspection probe part, having a plurality of power supply parts, for supplying alternating-current signals come from each supply mechanism in order to inspect the wiring conducting and short circuit of the detected object, and a plurality of eletricity testing parts, for detecting the electrical signals come from the wirings; and a travel mechanism, making the inspection probe part moving on the surface of the detected object along a scheduled shaft direction.

Description

Touch panel inspection apparatus
Technical field
The present invention relates to touch panel inspection apparatus, specifically relate to touch panel inspection apparatus as described below: can be by using transmitting electrode and the detecting electrode of cordless, can be rapidly and effectively be implemented in conducting and the test for short-circuit of the distribution that contact panel forms, and do not damage contact panel.
Wherein, the invention is not restricted to so-called contact panel, also can be arranged in the inspection object of rectangular distribution and implement to check for having as contact panel in X-direction and Y direction.
Background technology
In the past, for being called as the having at the inspection object that is configured to rectangular distribution on X-direction and Y direction that forms on the ITO film of contact panel (or Touch Screen, touch-control picture), make respectively contact (the conducting probe of needle-like) be disposed at X-direction contact with each distribution of Y direction and implement each distribution conducting and with the test for short-circuit of adjacent distribution.
But so make contact contact in the method for implementing to check to exist following problems with each distribution: do not have stability between the distribution that forms on the ITO film and contact, the instability of the contact resistance that causes because of oxide film can't the Accurate Determining electrical characteristics.And, because contact is crimped with the distribution that checks object, thereby have the contact distribution and problem that the indenture that causes forms.
On the other hand, as open in patent documentation 1, the known inspection technology that the electrical characteristics such as resistance value that check exactly contact panel integral body are arranged, this contact panel energy precision detect the predetermined touch-control input position on contact panel after assembling well.So, disclosed the technology of the electrical characteristics of the function that checks the contact panel after assembling.
But, the not conducting of the distribution before public examination such as above-mentioned assembling and the technology of short circuit.
And, there is Plasmia indicating panel (PDP) etc. in the glass substrate as having the distribution that forms from the teeth outwards.The glass substrate of PDP is formed with the distribution of a plurality of strips on one direction.In manufacturing process, need to check a plurality of conducting and short circuits that are arranged in the distribution on one direction.
As the testing fixture of this PDP, noncontact inspection technology as disclosed in patent documentation 2 has been proposed.In the disclosed noncontact inspection of this patent documentation 2 technology, signal is supplied to and becomes the distribution that checks object, and, relatively from the detected signal of this distribution and from the detected signal of distribution apart from this patch bay 4 or 5 figures, detect difference to implement inspection.
But the disclosed technology of this patent documentation 2, can implement to check for being set up in parallel at unidirectional distribution, but can't check as contact panel and be configured to rectangular distribution at x direction of principal axis and y direction of principal axis.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2005-274225 communique
Patent documentation 2: TOHKEMY 2006-200992 communique
Summary of the invention
The present invention makes in view of above actual conditions, it provides a kind of touch panel inspection apparatus, even check that object is for being configured to inspection thing the contact panel of rectangular distribution as having at x direction of principal axis and y direction of principal axis, also can, by with the noncontact test mode, implementing to check, shorten the supervision time and enforcement inspection effectively.
The described invention of technical scheme 1 provides a kind of touch panel inspection apparatus, detection has the above-mentioned x axle distribution of inspection thing of x axle distribution and y axle distribution and conducting and the short circuit of y axle distribution, described x axle distribution, be set side by side with a plurality of bar-shaped distributions, described y axle distribution, become rectangular and configure with above-mentioned x axle distribution, and be set side by side with a plurality of bar-shaped distributions, it is characterized in that, comprise: the first signal feed mechanism, supply with to be used for implement to become the AC signal of checking of the x axle distribution of above-mentioned inspection object; The secondary signal feed mechanism, supply with to be used for implement to become the AC signal of checking of the y axle distribution of above-mentioned inspection object; The 3rd signal feed mechanism, supply with to be used for implement to become the AC signal of x axle distribution and the test for short-circuit between adjacent y axle distribution of above-mentioned inspection object; Check and to have probe portion: a plurality of power supplies, supply with the AC signal from each feed mechanism for the conducting of the distribution that checks above-mentioned inspection object and short circuit; , with a plurality of electrical verification section, detect the electric signal from this distribution; Travel mechanism, move above-mentioned inspection probe portion along the predetermined shaft direction on the surface of above-mentioned inspection thing; Bindiny mechanism, be electrically connected to a plurality of power supplies of above-mentioned inspection probe portion and this a plurality of electrical verification section with above-mentioned the first to the 3rd signal feed mechanism; Common electrode section, all configure in non-contacting mode with respect to an end of above-mentioned a plurality of x axle distributions and an end of above-mentioned a plurality of y axle distributions, and be electrically connected to an end of above-mentioned first signal feed mechanism and an end of above-mentioned secondary signal feed mechanism respectively; And decision mechanism,, according to the detection signal from above-mentioned inspection probe portion, implement x axle distribution and y axle distribution conducting and test for short-circuit separately; And above-mentioned inspection probe portion comprises: the first power supply is disposed on the other end that becomes the x of above-mentioned inspection object axle distribution in non-contacting mode, and with the other end of above-mentioned first signal feed mechanism, is electrically connected to; The first electrical verification section, be disposed on above-mentioned x axle distribution in non-contacting mode, for detection of the electric signal of the x axle distribution that becomes above-mentioned inspection object; A plurality of the second power supplies, be disposed on the other end of above-mentioned a plurality of y axle distributions in non-contacting mode respectively, and with the other end of above-mentioned secondary signal feed mechanism or an end of above-mentioned the 3rd signal feed mechanism, be electrically connected to; A plurality of the second electrical verification sections, be disposed on above-mentioned a plurality of y axle distribution in non-contacting mode respectively, and detect the electric signal that AC signal that above-mentioned secondary signal feed mechanism and/or above-mentioned the 3rd signal feed mechanism supply with causes; , with the 3rd power supply, be electrically connected to the other end of above-mentioned the 3rd signal feed mechanism, and with the x axle distribution that becomes above-mentioned inspection object, in non-contacting mode, be configured.
The described invention of technical scheme 2, provide touch panel inspection apparatus as described in technical scheme 1, it is characterized in that, the AC signal that above-mentioned secondary signal feed mechanism is supplied with to a plurality of the second power supplies, be respectively the AC signal of different frequency.
The described invention of technical scheme 3, provide touch panel inspection apparatus as described in technical scheme 1 or 2, it is characterized in that, the AC signal that the first to the 3rd signal feed mechanism is supplied with is all AC signal of different frequency.
The described invention of technical scheme 4, provide touch panel inspection apparatus as described in technical scheme 1, it is characterized in that, above-mentioned travel mechanism moves along the y direction of principal axis in the setting that distribution extends of above-mentioned y axle.
, by described invention is provided, can all address the above problem.
According to the described invention of any one in technical scheme 1 to 4, a kind of touch panel inspection apparatus can be provided, even check that object is for being configured to inspection thing the contact panel of rectangular distribution as having at x direction of principal axis and y direction of principal axis, also can, by with the noncontact test mode, implementing to check, shorten the supervision time and enforcement inspection effectively.
Description of drawings
Fig. 1 means that becoming the present invention checks the concise and to the point vertical view of an embodiment of the contact panel of object.
Fig. 2 is the simplified diagram for the inspection method of this testing fixture of explanation.
Fig. 3 means the chart for AC signal with the AC signal that detects from figure (distribution) of the inspection method of this testing fixture of explanation.
Fig. 4 represents the inspection probe portion 3 of testing fixture of the present invention and an embodiment of common electrode section 6.
Fig. 5 means the concise and to the point vertical view of the state when this testing fixture is implemented to check.
Concise and to the point vertical view when Fig. 6 means the checking of implementing x axle distribution.Wherein, check the Line:X6 of the x axle jumper list diagram 1 of object.
Concise and to the point vertical view when Fig. 7 means the checking of implementing y axle distribution.Wherein, check the Line:Y1 of the y axle jumper list diagram 1 of object.
Concise and to the point vertical view when Fig. 8 means the test for short-circuit of implementing x axle distribution and y axle distribution.Wherein, check the Line:X1 of the x axle jumper list diagram 1 of object, the Line:Y1 of y axle jumper list diagram 1.
Concise and to the point vertical view when Fig. 9 means the checking of implementing y axle distribution.Wherein, check the Line:Y8 of the y axle jumper list diagram 1 of object.
The explanation of label
21 ... the first signal feed mechanism
22... secondary signal feed mechanism
23 ... the 3rd signal feed mechanism
3 ... check probe portion
71 ... the first power supply
72 ... the second power supply
73 ... the 3rd power supply
81 ... the first electrical verification section
82 ... the second electrical verification section
Embodiment
Below optimal way of the present invention is implemented in explanation.
This testing fixture can improve for have the axial substrate of rectangular a plurality of distributions, the checking efficiency of glass substrate of being configured to of x direction of principal axis and y as contact panel.
At first explanation becomes the contact panel of the inspection object of this testing fixture.
Fig. 1 means that becoming the present invention checks the concise and to the point vertical view of an embodiment of the contact panel of object.In the contact panel TP of this Fig. 1, dispose respectively the axial x axle of a plurality of x of being disposed at distribution and be disposed at the axial y axle of y distribution on glass substrate.In this Fig. 1, x axle distribution is formed with 14, and (with the Line:X1 shown in symbol~Line:X14), y axle distribution is formed with 8 (with the Line:Y1 shown in symbol~Line:Y8).
The x axle distribution of contact panel TP and y axle distribution, configure in the mode that is covered the touch area (by the part of P1 and P2 covering) on picture by described distribution, be concatenated to form wide width part and narrow width part by 1 x axle distribution (and y axle distribution) as shown in Figure 1, form and cover whole touch area.By such formation, when using contact panel TP, can detect touched position (contact site) is to be positioned at which x axle distribution and which y axle distribution.
In addition, x axle distribution and y axle distribution not respectively are defined as 14 and 8, can suitably be adjusted by contact panel manufacturer.And the length of wide width part and narrow width part, its size also can suitably be adjusted by contact panel manufacturer.
Described x axle distribution and y axle distribution, one end are formed with label (tag) T of section, it can be connected with electronic components such as drivers, and extend to form respectively the electrical connection section (label portion T) that is electrically connected to other electronic component.This label portion T is formed at and breaks away from (the position of P1~P2), and this label portion T can be electrically connected to, touch area in vertical view.In the contact panel TP of Fig. 1, the right side in the face of paper the time is formed with respectively (x axle distribution and y axle distribution) label portion T.The position of this label portion T beyond can be in touch area forms a place, also can make the label portion T of x axle distribution and y axle distribution be formed at respectively circumference.
This testing fixture (not shown) has first signal feed mechanism 21, secondary signal feed mechanism 22, the 3rd signal feed mechanism 23, checks probe portion 3, travel mechanism, bindiny mechanism, common electrode section 6 and decision mechanism.
First signal feed mechanism 21 is supplied with the first AC signal that becomes the checking of the x axle distribution that checks object for enforcement.First signal feed mechanism 21 is that two kinds of different AC power of phase place 180 degree are connected and (with reference to power supply PW1 and the power supply PW2 shown in Figure 2) of formation via ground wire.
One end of this first signal feed mechanism 21 is electrically connected to common electrode section 6, and its other end is electrically connected to the first power supply 71.Therefore, first signal feed mechanism 21, via common electrode section 6 and the first power supply 71, will supply to x axle distribution for the AC signal that checks.
Secondary signal feed mechanism 22 is supplied with the second AC signal that becomes the checking of the y axle distribution that checks object for enforcement.This secondary signal feed mechanism 22 is phase place 180 to be spent two kinds of different AC power connect via ground wire and form from first signal feed mechanism 21 in the same manner.One end of this secondary signal feed mechanism 22 is electrically connected to common electrode section 6, and its other end is electrically connected to the second power supply 72.Therefore, secondary signal feed mechanism 22 will supply to y axle distribution for the AC signal that checks via common electrode section 6 and the second power supply 72.
This secondary signal feed mechanism 22 is made as and can implements checking for the whole y axle distributions that form at contact panel TP.Particularly, the AC signal of setting the different frequency that equates with y axle distribution quantity is arranged, and respectively the AC signal of various frequencies is supplied to the method for y axle distribution, also the AC signal of 2 different frequencies alternately can be supplied to adjacent y axle distribution.
In addition, this secondary signal feed mechanism 22, preferred preparation is equal to a plurality of AC signal source of the AC signal quantity of different frequency.
The 3rd signal feed mechanism 23 is supplied with and is used for implementing to become the x axle distribution that checks object and adjacent and the 3rd AC signal test for short-circuit between the y axle distribution that configures.
One end of the 3rd signal feed mechanism 23 is electrically connected to the second power supply 72, and its other end is electrically connected to the 3rd power supply 73.Therefore, the 3rd signal feed mechanism 23, via the second power supply 72 and the 3rd power supply 73, checks the short circuit of x axle distribution and y axle distribution.
Below use simplified diagram that the inspection principle of this testing fixture is described.Fig. 2 is the schematic diagram for the inspection method of this testing fixture of explanation.This testing fixture is disposed at power supply A and power supply B the both ends of distribution W in non-contacting mode physically, to be used for checking the conducting of the distribution W that forms on glass substrate.From supplying with AC power PW1 and the AC power PW2 of the 180 different AC signal of degree, identical and phase place 180 different AC signal of degree supply to respectively this power supply A and power supply B (with reference to figure 3) with frequency.
AC signal from 2 AC power PW1, PW2 supplies, to supply to power supply A (or power supply B) for the AC signal that checks, from power supply A (or power supply B) when this AC signal is supplied to distribution W, because distribution W and the coupling of power supply A electrostatic capacitance, thereby at distribution W, produce the electric current that phase advance 90 is spent.At this moment, because power supply A supplies to distribution W with power supply B with the phase place 180 different AC signal of degree, thereby do not have (when conducting state is good) when bad as distribution W, because of the impact signal of the AC signal supplied with from 2 power supplies cancel each other (with reference to figure shown in Figure 3, applying electric current).
Therefore, the C of detecting electrode section that configures in order to detect the signal that produces at distribution W, detect the signal of zero level.
Suppose, position shown in the resistance on distribution W shown in Figure 2 has poor flow (opening circuit bad), and the C of detecting electrode section can detect and accept the signal that affects from the AC signal that power supply A supplies with, and can detect poor flow.
In addition, this detecting electrode section in Fig. 2 embodiment, represents 2 detecting electrode sections (C, D), but can be also the structure of only using side's detecting electrode section, can also be the structure of using simultaneously two detecting electrode sections.
The AC signal that first signal feed mechanism 21 to the 3rd signal feed mechanisms 23 are supplied with, also can all set different frequency for.At this moment, can when conducting or poor short circuit being detected, determine whether to exist on certain distribution bad.
Fig. 4 represents the inspection probe portion 3 of testing fixture of the present invention and an embodiment of common electrode section 6.Inspection probe portion 3 of the present invention, have and supply with from a plurality of power supplies of the AC signal of each feed mechanism and detect a plurality of electrical verification section from the electric signal of this distribution, with conducting and the short circuit of the distribution to checking object, checks.
Inspection probe portion 3 shown in Figure 4 has the first power supply 71, and this first power supply 71 is disposed on the other end that becomes the x axle distribution that checks object in non-contacting mode, and with the other end of first signal feed mechanism 21, is electrically connected to.
This first power supply 71 is configured to be positioned at the x axle distribution left end that checks probe portion 3.By being disposed at this position, common electrode section 6 and the first power supply 71 can be implemented the checking from the end points of x axle distribution to end points.
In addition, this first power supply 71 is arranged to be disposed on the wide width part of the end of x axle distribution.
Has the first electrical verification section 81 with the cordless configuration on x axle distribution, for detection of the electric signal that becomes the x axle distribution that checks object.This first electrical verification section 81 is disposed on the wide width part of the x axle distribution adjacent with the first power supply 71.Although configure this first electrical verification section 81 position so long as between the first power supply 71 and common electrode section 6 just without particular limitation of, be preferably the position in panel zone.
In addition, the first power supply 71 and the first electrical verification section 81 are disposed on same x axle distribution in non-contacting mode.
The first electrical verification section 81 is disposed on the x axle distribution (1 x axle distribution) that checks object as mentioned above, but second electrical verification section (auxiliary electrical verification section) also can be set and for detection of the electric signal of x axle distribution.In Fig. 4, can be with the position of assisting electrical verification section 83 to be disposed to be positioned on the wide width part of x axle distribution of panel zone right-hand member.
Check that probe portion 3 has a plurality of the second power supplies 72, this second power supply 72 is disposed at respectively the other end of a plurality of y axle distributions in non-contacting mode, and with the other end of secondary signal feed mechanism 22 or an end of the 3rd signal feed mechanism 23, is electrically connected to.
This second power supply 72 is made as with the quantity (in the embodiment of Fig. 1 being 8) of y axle distribution and equates, each second power supply 72 respectively with y axle distribution physically non-contacting mode configure.
This second power supply 72 is connected to secondary signal feed mechanism 22 and the 3rd signal feed mechanism 23, and by bindiny mechanism, controls with either party wherein and be connected, or with both sides, is connected.
Check that probe portion 3 has a plurality of the second electrical verification sections 82, this the second electrical verification section 82 is disposed on a plurality of y axle distributions in non-contacting mode respectively, the electric signal that the AC signal that detection is supplied with by secondary signal feed mechanism 22 and/or the 3rd signal feed mechanism 23 causes.
This second electrical verification section 82 is arranged to equate with the quantity (in the embodiment of Fig. 1 being 8) of y axle distribution, each second electrical verification section 82 respectively with y axle distribution physically non-contacting mode configure.
In inspection probe portion 3 shown in Figure 4, the second power supply 72 and the second electrical verification section 82 with respect to 4 y axle distributions, check the upside of probe portion 3 while because of the label portion shape of y axle distribution, being disposed at the second power supply 72 in the face of paper, and the second electrical verification section 82 is disposed at the wide width part of comparing the y axle distribution that disposes this second power supply 72 and the top that is positioned at the wide width part of adjacent position.For all the other 4 y axle distributions, when being disposed in the face of paper, the second electrical verification section 82 checks the downside of probe portion 3, the second power supply 72 is disposed at the wide width part of comparing the y axle distribution that disposes this second electrical verification section 82 and the top that is positioned at the wide width part of adjacent position.
Check that probe portion 3 has the 3rd power supply 73, the three power supplies 73 and is electrically connected to the other end of the 3rd signal feed mechanism 23, and in the non-contacting mode of x axle distribution with becoming the inspection object, configure.
The 3rd power supply 73 and the first power supply 71 and the second power supply 72 are disposed at same becoming on the x axle distribution that checks object.The 3rd power supply 73 forms on the wide width part that is disposed at the substantial middle section of x axle distribution in touch area.
in Fig. 4 of the inspection probe portion 3 that represents this testing fixture, represent the first power supply 71 by electrode part X11, represent the first electrical verification section 81 by electrode part X21, by electrode part Y11, electrode part Y21, electrode part Y31, electrode part Y41, electrode part Y52, electrode part Y62, electrode part Y72, electrode part Y82 represents a plurality of the second power supplies 72, by electrode part Y12, electrode part Y22, electrode part Y32, electrode part Y42, electrode part Y51, electrode part Y61, electrode part Y71, electrode part Y81 represents the second electrical verification section 82, represent the 3rd power supply 73 by electrode part X51, represent auxiliary electrical verification section 83 by electrode part X91.
Described electrode part forms the shape (for example, circular, rectangle) that has with the size of the wide width part same degree of distribution.
Check that probe portion 3 is formed by the plate-like portion material with electrode part as above, this inspection probe portion 3 is implemented to check by moving on glass substrate.At first as Fig. 4, this inspection probe portion 3 forms the size of addition part of the wide width part of length with x axle distribution and y axle distribution.
Common electrode section 6, all configure in non-contacting mode with respect to an end of a plurality of x axle distributions and an end of above-mentioned a plurality of y axle distributions, and be electrically connected to an end of first signal feed mechanism and an end of secondary signal feed mechanism respectively.In the embodiment of Fig. 5, the label portion of the label portion T of x axle distribution and y axle distribution concentrates on a position on glass substrate, and described label portion T is configured in whole physically modes of contactless state.In addition, this common electrode section 6, also can move simultaneously with inspection probe portion described later, but with whole distributions described later, keep contactless state.
This testing fixture will check that probe portion 3 is mobile along predetermined shaft direction (the long axis direction v of y axle distribution in Fig. 5) on the surface of the glass substrate as checking thing.This travel mechanism can use utilized linear motor etc. in mechanism that rectilinear orbit moves.
This testing fixture has and will check a plurality of power supplies of probe portion 3 and the bindiny mechanism that a plurality of electrical verification section is electrically connected to the first to the 3rd signal feed mechanism.This bindiny mechanism uses a plurality of change-over switches suitably to be electrically connected to.
This testing fixture has decision mechanism, and this decision mechanism, according to the detection signal that carrys out self-check probe portion 3, implements conducting separately and the test for short-circuit of each x axle distribution and y axle distribution.
This decision mechanism, according to the inspection signal that detects from each electrical verification section, judgement becomes the x axle distribution of inspection object and conducting and the short circuit of y axle distribution.
When judgement becomes the conducting of the x axle distribution that checks object, supply is from the AC signal of the first power supply 71 and common electrode section 6, the signal that detects by the first electrical verification section 81 is to be subject to the impact that causes from the AC signal that the first power supply 71 is supplied with, and still is subject to being subject to which impact from the impact that the AC signal that common electrode section 6 supplies with causes and judges.Wherein, be subject to from the impact of arbitrary power supply and signal while being cancelled, be judged to be conducting good.
When judgement becomes the conducting of the y axle distribution that checks object, supply is from the AC signal of the second power supply 72 and common electrode section 6, the signal that detects by the second electrical verification section 82 is to be subject to the impact that causes from the AC signal that the second power supply 72 is supplied with, and still is subject to being subject to which impact from the impact that the AC signal that common electrode section 6 supplies with causes and judges.Wherein, be subject to from the impact of arbitrary power supply and signal while being cancelled, be judged to be conducting good.
When judgement becomes the short circuit of the x axle distribution that checks object and y axle distribution, AC signal from the second power supply 72 and the 3rd power supply 73 supply the 3rd signal feed mechanisms 23, the signal that detects by the second electrical verification section 82 is to be subject to the impact that causes from the AC signal that the second power supply 72 is supplied with, still be subject to from the AC signal that the 3rd power supply 73 is supplied with cause impact be subject to which impact and judge.At this moment, while having poor short circuit, from the AC signal of the second power supply 72 and the 3rd power supply 73, offset, or be subject to impact from the signal of the second power supply 72.
In addition, while not having poor short circuit, be subject to the impact from the signal of the 3rd power supply 73.
, because many configurations side by side of the label portion T of each distribution, thereby the problem of existence and adjacent label portion T poor short circuit, particularly there is the situation of the label portion T generation poor short circuit of y axle distribution as shown in Figure 1 in the label portion T of contact panel TP.
At this moment, by AC signal is supplied to, be disposed at the y axle distribution that checks object and the second power supply 72 that becomes the y axle distribution of test for short-circuit object, when the second electrical verification section 82 detects AC signal from other y axle distribution, poor short circuit namely detected.
And the AC signal that detects the short circuit of y axle distribution can be set as the AC signal of different frequency, also can set alternately different frequencies and detects short circuit.
Above explanation, electrode part when expression inspection probe portion 3 moves along the long axis direction of y axle distribution by travel mechanism and the configuration of power supply, when checking that the long axis direction of probe portion 3 along x axle distribution moves, the x axle between electrode part and power supply is corresponding with the y axle is replaced configuration.
It is more than the structure of touch panel inspection apparatus of the present invention.
The action of this testing fixture then is described.
Contact panel TP is disposed on the precalculated position of this testing fixture, starts to carry out the inspection (with reference to figure 5) of contact panel TP.
As shown in Figure 5, check that probe portion 3 moves the below when facing paper by travel mechanism.
In addition, while checking the contact panel TP of Fig. 1, the first power supply 71 and the first electrical verification section 81 are being disposed on x axle distribution, and each second power supply 72 and the second electrical verification section 82 are being disposed in situation on the y axle distribution of y axle distribution Line:Y1~Y4, starting to check.
While starting to carry out inspection as above, carry out the checking of x axle distribution Line:X1 and the checking of y axle distribution Line:Y1~Y4.
At this moment, for example implement the checking of x axle distribution as shown in Figure 6, and implement the checking of y axle distribution as shown in Figure 7.
While implementing the checking of above-mentioned x axle distribution and y axle distribution, implement x axle distribution (Line:X1) and the described y axle distribution (test for short-circuit of line:Y1~Y8).
Then, check that probe portion 3 moves along long axis direction v, the x axle distribution Line:X2 of using checks as checking object.At this moment, the first power supply 71 and the first electrical verification section 81 are until be disposed on the wide width part of x axle distribution Line:X2 and move.
At this moment, during with x axle distribution Line:X1, the same checking of implementing, implement the test for short-circuit with each y axle distribution.
The inspection object of x axle distribution becomes x axle distribution Line:X14, while implementing this checking, then, as shown in Figure 9, implements the checking of y axle distribution Line:Y5~Y8.
Check in operation at each, detect bad (poor flow, poor short circuit).
It is more than the explanation of action of the present invention.

Claims (4)

1. touch panel inspection apparatus, detection has the described x axle distribution of inspection thing of x axle distribution and y axle distribution and conducting and the short circuit of y axle distribution, described x axle distribution, be set side by side with a plurality of bar-shaped distributions, described y axle distribution, become rectangular and configure with described x axle distribution, and being set side by side with a plurality of bar-shaped distributions, it is characterized in that, comprising:
The first signal feed mechanism, supply with the AC signal for the checking of the x axle distribution of implementing described inspection thing;
The secondary signal feed mechanism, supply with the AC signal for the checking of the y axle distribution of implementing described inspection thing;
The 3rd signal feed mechanism, supply with to be used for implementing the AC signal of x axle distribution and the test for short-circuit between adjacent y axle distribution of described inspection thing;
Check and to have probe portion: a plurality of power supplies, supply with the AC signal from each feed mechanism for the conducting of the distribution that checks described inspection thing and short circuit; , with a plurality of electrical verification section, detect the electric signal from this distribution;
Travel mechanism, move described inspection probe portion along the predetermined shaft direction on the surface of described inspection thing;
Bindiny mechanism, be electrically connected to a plurality of power supplies of described inspection probe portion and this a plurality of electrical verification section with described the first to the 3rd signal feed mechanism;
Common electrode section, an end with respect to a plurality of bar-shaped distributions of an end of a plurality of bar-shaped distributions of described x axle distribution and described y axle distribution all configures in non-contacting mode, and is electrically connected to an end of described first signal feed mechanism and an end of described secondary signal feed mechanism respectively; With
Decision mechanism,, according to the detection signal from described inspection probe portion, implement x axle distribution and y axle distribution conducting and test for short-circuit separately,
Described a plurality of power supply comprises the first power supply, a plurality of the second power supply and the 3rd power supply, and described a plurality of electrical verification section comprises the first electrical verification section and a plurality of the second electrical verification section,
Described the first power supply, be disposed in non-contacting mode on the other end of x axle distribution of described inspection thing, and with the other end of described first signal feed mechanism, be electrically connected to,
Described the first electrical verification section, be disposed on described x axle distribution in non-contacting mode, for detection of the electric signal of the x axle distribution of described inspection thing,
Described a plurality of the second power supply, be disposed on the other end of a plurality of bar-shaped distributions of described y axle distribution in non-contacting mode respectively,
Described a plurality of the second electrical verification section, be disposed on a plurality of bar-shaped distribution of described y axle distribution in non-contacting mode respectively,
Described the 3rd power supply, be electrically connected to an end of described the 3rd signal feed mechanism, and with the x axle distribution of described inspection thing, in non-contacting mode, be configured,
Wherein,
When described a plurality of the second power supplies are electrically connected to the other end of described secondary signal feed mechanism, the electric signal that the AC signal that described a plurality of the second electrical verification sections described secondary signal feed mechanisms of detection are supplied with causes,
When described a plurality of the second power supplies are electrically connected to the other end of described the 3rd signal feed mechanism, the electric signal that the AC signal that described a plurality of the second electrical verification sections described the 3rd signal feed mechanisms of detection are supplied with causes.
2. touch panel inspection apparatus as claimed in claim 1, is characterized in that, the AC signal that described secondary signal feed mechanism is supplied with to a plurality of the second power supplies, be respectively the AC signal of different frequency.
3. touch panel inspection apparatus as claimed in claim 1 or 2, is characterized in that, the AC signal that the first to the 3rd signal feed mechanism is supplied with is all AC signal of different frequency.
4. touch panel inspection apparatus as claimed in claim 1, is characterized in that, described travel mechanism moves along the y direction of principal axis in the setting that distribution extends of described y axle.
CN2010101763420A 2009-05-14 2010-05-12 Touch panel inspection apparatus Expired - Fee Related CN101887098B (en)

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CN101887098A (en) 2010-11-17
KR20100123627A (en) 2010-11-24

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