CN104535597A - Touch screen coating detection method and device - Google Patents
Touch screen coating detection method and device Download PDFInfo
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- CN104535597A CN104535597A CN201410782696.8A CN201410782696A CN104535597A CN 104535597 A CN104535597 A CN 104535597A CN 201410782696 A CN201410782696 A CN 201410782696A CN 104535597 A CN104535597 A CN 104535597A
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Abstract
The invention discloses a touch screen coating detection method. The touch screen comprises a substrate and a touch screen coating arranged on the substrate, wherein the touch screen coating comprises a first layer arranged on the substrate and a second layer arranged on the first layer; one of the first layer and the second layer is an anti-ghost layer; and the other one of the first layer and the second layer is a transparent conductive layer. The detection method comprises the following steps: respectively obtaining spectral lines of characteristic X rays of the first layer and the second layer; analyzing the components of the first layer and the second layer according to the spectral lines of the characteristic X rays of the first layer and the second layer; and judging which one of the first layer and the second layer is the anti-ghost layer and which one of the first layer and the second layer is the transparent conductive layer according to the components of the first layer and the second layer, and judging whether the touch screen coating is qualified, wherein if the first layer is the transparent conductive layer and the second layer is the anti-ghost layer, the touch screen coating is qualified, otherwise, the touch screen coating is unqualified. According to the mode, whether the sequence of the touch screen coating is inverted can be detected, and the yield of the touch screen coating is well detected.
Description
Technical field
The present invention relates to touch-screen detection technique field, particularly relate to a kind of detection method and device of touch-screen coating.
Background technology
There is a kind of technology be directly plated in by the technique of vacuum coating by ITO indium oxide on one deck glass in touch screen technology in recent years.Generally be OGS (One Glass Solution) one deck glass proposals or TOL (Touch sensor On Lens touch sensible is in glass surface scheme), it is thinner that advantage is relatively traditional GG (double glazing), GFF one deck glass adds double-layer films scheme, transmittance is higher, and saves starting material.But this type of touch-screen is because ITO direct plating is on glass, the refractive index of ITO and the refractive index of glass are too many, in order to be easy to find out ITO pattern.The shadow layer (IM) that disappears must be plated again, improve display effect.This type of touch-screen has coating 4 ~ 5 layers, if these coating reversed order, can affect the performance of touch-screen, gently then hop, and heavy then touch-screen nonfunctional lost efficacy.Existing detection is only by the technological process management and control of supplier oneself, effect is bad has batch mixing and supplier may reload for reducing costs or subtract flow process, because these coating are all intimate transparent, and be nano-micrometre grade, from we all can not Timeliness coverage in appearance.At present, on the market to due to coating (being mainly the shadow layer IM that disappear) reversed order, not enough on the impact understanding of performance, let alone effective detection method.
Therefore, detection method and device that a kind of touch-screen coating is provided is needed, to solve the problems of the technologies described above.
Summary of the invention
Whether the technical matters that the present invention mainly solves is to provide a kind of detection method and device of touch-screen coating, effectively can detect touch-screen coating order and put upside down, detect the qualification rate of touch-screen coating preferably.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the detection method providing a kind of touch-screen coating, touch-screen comprises substrate and is arranged on the touch-screen coating on substrate, touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in ground floor and the second layer, one is the shadow layer that disappears, another one is transparency conducting layer, and detection method comprises: the spectral line obtaining the characteristic X-ray of ground floor and the second layer respectively; According to the spectrum analysis ground floor of characteristic X-ray and the composition of the second layer of ground floor and the second layer; To judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified, wherein, if ground floor is transparency conducting layer, the second layer for disappear shadow layer then touch-screen coating be qualified, otherwise, then defective.
Wherein, the step obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively comprises: with electron beam irradiation touch-screen coating surface to excite the characteristic X-ray of ground floor and the second layer; Observation also obtains the spectral line of the characteristic X-ray of ground floor and the second layer respectively.
Wherein, the step obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively also comprises: the xsect utilizing electron microscope observation touch-screen coating, to distinguish ground floor and the second layer.
Wherein, touch-screen coating also comprises the third layer be positioned under ground floor and the 4th layer that is positioned on the second layer, and the step wherein obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively comprises: with electron beam irradiation coating surface to excite the characteristic X-ray of ground floor, the second layer, third layer and the 4th layer; Observation also obtains the spectral line of characteristic X-ray of ground floor, the second layer, third layer and the 4th layer respectively.
Wherein, the step obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively also comprises: the xsect utilizing electron microscope observation touch-screen coating, to distinguish ground floor, the second layer, third layer and the 4th layer.
Wherein, detection method also comprises: according to the spectrum analysis third layer of characteristic X-ray and the composition of the 4th layer of third layer and the 4th layer; Composition according to third layer and the 4th layer judges whether third layer is silicon dioxide layer, judges whether the 4th layer be organic insulation protective seam.
Wherein, comprise according to ground floor and the spectrum analysis ground floor of characteristic X-ray of the second layer and the step of the composition of the second layer: the standard transparent conductive layer spectral line of the characteristic X-ray of disappeared with the standard of the characteristic X-ray of the shadow layer that disappears obtained in advance respectively by the spectral line of the characteristic X-ray of ground floor and the second layer shadow layer spectral line and transparency conducting layer is compared, wherein, ground floor its composition consistent with the shadow layer spectral line that disappear with standard in the second layer is consistent with the shadow layer that disappears, its composition consistent with standard transparent conductive layer spectral line and transparency conducting layer consistent.
Wherein, comprise according to third layer and the spectrum analysis third layer of characteristic X-ray of the 4th layer and the step of the composition of the 4th layer: by the standard silica layer spectral line comparison of the spectral line of the characteristic X-ray of third layer with the characteristic X-ray of the silicon dioxide layer obtained in advance; if consistent, the composition of third layer is consistent with the composition of silicon dioxide layer; compared by the standard organic insulation protective seam spectral line of the spectral line of the characteristic X-ray of the 4th layer with the characteristic X-ray of the organic insulation protective seam obtained in advance, if consistent, the composition of the 4th layer is consistent with the composition of organic insulation protective seam.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the pick-up unit providing a kind of touch-screen coating, this touch-screen comprises substrate and touch-screen coating, touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in ground floor and the second layer, one is the shadow layer that disappears, another one is transparency conducting layer, and pick-up unit comprises: characteristic X-ray acquiring unit, for obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively; Spectrum analysis unit, for the spectrum analysis ground floor of the characteristic X-ray according to ground floor and the second layer and the composition of the second layer; Processing unit, for judging according to the composition of ground floor and the second layer in ground floor and the second layer that whichever is as the shadow layer that disappears, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified, wherein, if ground floor is transparency conducting layer, the second layer for disappear shadow layer then touch-screen coating be qualified, otherwise, then defective.
Wherein, characteristic X-ray acquiring unit comprises: electron-beam excitation device, irradiates touch-screen coating surface to excite the characteristic X-ray of ground floor and the second layer for divergent bundle; Electron microscope and power spectrum detection instrument, for observing and obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention is by obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively; According to the spectrum analysis ground floor of characteristic X-ray and the composition of the second layer of ground floor and the second layer, and to judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified, thus effectively can detect touch-screen coating order and whether put upside down, preferably detect the whether qualified of touch-screen coating.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the detection method of the touch-screen coating of first embodiment of the invention;
Fig. 2 is the process flow diagram of the detection method of the touch-screen coating of second embodiment of the invention;
Fig. 3 is the structural representation of the pick-up unit of the touch-screen coating of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described in detail.
Refer to Fig. 1, Fig. 1 is the process flow diagram of the detection method of the touch-screen coating of first embodiment of the invention.In the present embodiment, touch-screen comprises substrate and is arranged on the touch-screen coating on substrate, touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in ground floor and the second layer, one is the shadow layer that disappears, another one is transparency conducting layer, preferably, the shadow composition of layer that disappears is niobium pentaoxide, and the composition of transparency conducting layer is indium sesquioxide.The detection method of touch-screen coating comprises:
Step S11: the spectral line obtaining the characteristic X-ray of ground floor and the second layer respectively.
In step s 11, such as, utilize characteristic X-ray acquiring unit to obtain the spectral line of the characteristic X-ray of ground floor and the second layer respectively, this step specifically can comprise: the xsect utilizing electron microscope observation touch-screen coating, to distinguish ground floor and the second layer; Electron-beam excitation device electron beam irradiation touch-screen coating surface is to excite the characteristic X-ray of ground floor and the second layer; Electron microscope and power spectrum detection instrument is utilized to observe and obtain the spectral line of the characteristic X-ray of ground floor and the second layer respectively.
Step S12: according to the spectrum analysis ground floor of characteristic X-ray and the composition of the second layer of ground floor and the second layer.
In step s 12, such as, utilize spectrum analysis unit according to the spectrum analysis ground floor of characteristic X-ray of ground floor and the second layer and the composition of the second layer, this step specifically comprises: disappeared with the standard of the characteristic X-ray of the shadow layer that disappears obtained in advance respectively by the spectral line of the characteristic X-ray of ground floor and the second layer standard transparent conductive layer spectral line of characteristic X-ray of shadow layer spectral line and transparency conducting layer of spectrum analysis unit is compared, wherein, ground floor its composition consistent with the shadow layer spectral line that disappear with standard in the second layer is consistent with the shadow layer that disappears, its composition consistent with standard transparent conductive layer spectral line and transparency conducting layer consistent.
Step S13: to judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified.
In step s 13, such as, utilize processing unit to judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified.Ground floor its composition consistent with the shadow layer spectral line that disappear with standard in the second layer is consistent with the shadow layer that disappears, and this coating is the shadow layer that disappears.Unanimously, this coating is transparency conducting layer for its composition consistent with standard transparent conductive layer spectral line and transparency conducting layer.If ground floor is transparency conducting layer, the second layer for disappear shadow layer then touch-screen coating be qualified, otherwise if ground floor is the shadow layer that disappears, the second layer is transparency conducting layer, then defective.
Refer to Fig. 2, Fig. 2 is the process flow diagram of the detection method of the touch-screen coating of second embodiment of the invention.In the present embodiment, touch-screen comprises substrate and is arranged on the touch-screen coating on substrate, touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in ground floor and the second layer, one is the shadow layer that disappears, another one is transparency conducting layer, and touch-screen coating also comprises the third layer be positioned under ground floor and the 4th layer that is positioned on the second layer.Preferably, the shadow composition of layer that disappears is niobium pentaoxide, and the composition of transparency conducting layer is indium sesquioxide.
Step S21: the xsect utilizing electron microscope observation touch-screen coating, to distinguish ground floor, the second layer, third layer and the 4th layer.
Step S22: with electron beam irradiation coating surface to excite the characteristic X-ray of ground floor, the second layer, third layer and the 4th layer.
In step S22, such as, electron-beam excitation device electron beam irradiation coating surface is to excite the characteristic X-ray of ground floor, the second layer, third layer and the 4th layer.
Step S23: observation also obtains the spectral line of characteristic X-ray of ground floor, the second layer, third layer and the 4th layer respectively.
In step S23, such as, utilize electron microscope and the observation of power spectrum detection instrument and obtain the spectral line of characteristic X-ray of ground floor, the second layer, third layer and the 4th layer respectively.
Step S24: according to the spectrum analysis ground floor of characteristic X-ray and the composition of the second layer of ground floor and the second layer, according to the spectrum analysis third layer of characteristic X-ray and the composition of the 4th layer of third layer and the 4th layer.
In step s 24 which, such as, utilize spectrum analysis unit according to the spectrum analysis ground floor of characteristic X-ray of ground floor and the second layer and the composition of the second layer, its concrete steps comprise: disappeared with the standard of the characteristic X-ray of the shadow layer that disappears obtained in advance respectively by the spectral line of the characteristic X-ray of ground floor and the second layer standard transparent conductive layer spectral line of characteristic X-ray of shadow layer spectral line and transparency conducting layer of spectrum analysis unit is compared, wherein, ground floor its composition consistent with the shadow layer spectral line that disappear with standard in the second layer is consistent with the shadow layer that disappears, its composition consistent with standard transparent conductive layer spectral line and transparency conducting layer consistent.Comprise according to third layer and the spectrum analysis third layer of characteristic X-ray of the 4th layer and the step of the composition of the 4th layer: by the standard silica layer spectral line comparison of the spectral line of the characteristic X-ray of third layer with the characteristic X-ray of the silicon dioxide layer obtained in advance; if consistent, the composition of third layer is consistent with the composition of silicon dioxide layer; compared by the standard organic insulation protective seam spectral line of the spectral line of the characteristic X-ray of the 4th layer with the characteristic X-ray of the organic insulation protective seam obtained in advance, if consistent, the composition of the 4th layer is consistent with the composition of organic insulation protective seam.
Step S25: to judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer; whichever is transparency conducting layer; composition according to third layer and the 4th layer judges whether third layer is silicon dioxide layer; judge whether the 4th layer be organic insulation protective seam, to judge that whether touch-screen coating is qualified.
In step s 25, such as, according to the composition of ground floor and the second layer, processing unit to judge in ground floor and the second layer that whichever is as the shadow layer that disappears, whichever is transparency conducting layer, composition according to third layer and the 4th layer judges whether third layer is silicon dioxide layer, judge whether the 4th layer be organic insulation protective seam, to judge that whether touch-screen coating is qualified, if ground floor is transparency conducting layer, the second layer is the shadow layer that disappears, third layer is silicon dioxide layer, 4th layer is organic insulation protective seam, then touch-screen coating is qualified, if ground floor is the shadow layer that disappears, the second layer is hyaline layer, or, third layer is not silicon dioxide layer, or the 4th layer is not organic insulation protective seam, then defective.
Refer to Fig. 3, Fig. 3 is the module diagram of the pick-up unit of the touch-screen coating of the preferred embodiment of the present invention.
In the present embodiment, this touch-screen comprises substrate and touch-screen coating, and touch-screen coating comprises the second layer being arranged on ground floor on substrate and arranging on the first layer, and in ground floor and the second layer, one is the shadow layer that disappears, and another one is transparency conducting layer.
In the present embodiment, the pick-up unit of touch-screen coating comprises characteristic X-ray acquiring unit 11, spectrum analysis unit 12 and processing unit 13.
Characteristic X-ray acquiring unit 11 is for obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively; The spectrum analysis ground floor of spectrum analysis unit 12 for the characteristic X-ray according to ground floor and the second layer and the composition of the second layer; Processing unit 13 is for judging according to the composition of ground floor and the second layer in ground floor and the second layer that whichever is as the shadow layer that disappears, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified, wherein, if ground floor is transparency conducting layer, the second layer for disappear shadow layer then touch-screen coating be qualified, otherwise, then defective.
Preferably, characteristic X-ray acquiring unit 11 comprises: electron-beam excitation device 111, electron microscope 112 and power spectrum detection instrument 113 irradiate touch-screen coating surface to excite the characteristic X-ray of ground floor and the second layer for divergent bundle.Electron microscope 112 and power spectrum detection instrument 113, for observing and obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively.
In other embodiments, touch-screen coating also comprises the third layer be positioned under ground floor and the 4th layer that is positioned on the second layer.Characteristic X-ray acquiring unit 11 is also for obtaining the spectral line of the characteristic X-ray of third layer and the 4th layer respectively; Spectrum analysis unit 12 is also for the spectrum analysis third layer of the characteristic X-ray according to third layer and the 4th layer and the composition of the 4th layer; Processing unit 13, also for judging whether third layer is silicon dioxide layer according to the composition of third layer and the 4th layer, judges whether the 4th layer be organic insulation protective seam.
Preferably, the shadow composition of layer that disappears is niobium pentaoxide, and the composition of transparency conducting layer is indium sesquioxide.
Be different from the situation of prior art, the present invention is by obtaining the spectral line of the characteristic X-ray of ground floor and the second layer respectively; According to the spectrum analysis ground floor of characteristic X-ray and the composition of the second layer of ground floor and the second layer, and to judge in ground floor and the second layer that whichever is as the shadow layer that disappears according to the composition of ground floor and the second layer, whichever is transparency conducting layer, to judge that whether touch-screen coating is qualified, thus effectively can detect touch-screen coating order and whether put upside down, whether qualifiedly detect preferably touch-screen coating.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the detection method of a touch-screen coating, it is characterized in that, the touch-screen coating that described touch-screen comprises substrate and arranges on the substrate, described touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in described ground floor and the described second layer, one is the shadow layer that disappears, another one is transparency conducting layer, and described detection method comprises:
Obtain the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively;
The composition of ground floor and the described second layer according to the spectrum analysis of the characteristic X-ray of described ground floor and the described second layer;
According to the composition of described ground floor and the described second layer to judge in described ground floor and the described second layer whichever for described in disappear shadow layer, whichever is described transparency conducting layer, whether qualified to judge described touch-screen coating, wherein, if described ground floor is transparency conducting layer, the described second layer for disappear shadow layer then described touch-screen coating be qualified, otherwise, then defective.
2. detection method according to claim 1, is characterized in that, the described step obtaining the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively comprises:
With touch-screen coating surface described in electron beam irradiation to excite the characteristic X-ray of described ground floor and the described second layer;
Observation also obtains the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively.
3. detection method according to claim 2, is characterized in that, the described step obtaining the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively also comprises:
Utilize the xsect of touch-screen coating described in electron microscope observation, to distinguish described ground floor and the described second layer.
4. detection method according to claim 1, it is characterized in that, described touch-screen coating also comprises the third layer be positioned under described ground floor and the 4th layer that is positioned on the second layer, and the wherein said step obtaining the spectral line of the characteristic X-ray of described ground floor and the second layer respectively comprises:
With electron beam irradiation coating surface to excite the characteristic X-ray of described ground floor, the described second layer, described third layer and described 4th layer;
Observation also obtains the spectral line of characteristic X-ray of described ground floor, the described second layer, described third layer and described 4th layer respectively.
5. detection method according to claim 4, is characterized in that, the described step obtaining the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively also comprises:
Utilize the xsect of touch-screen coating described in electron microscope observation, to distinguish described ground floor, the described second layer, described third layer and described 4th layer.
6. detection method according to claim 5, is characterized in that, detection method also comprises:
The composition of third layer and described 4th layer according to the spectrum analysis of the characteristic X-ray of described third layer and described 4th layer;
Composition according to described third layer and described 4th layer judges whether described third layer is silicon dioxide layer, judges whether described 4th layer be organic insulation protective seam.
7. detection method according to claim 1, is characterized in that, described in the spectrum analysis of the described characteristic X-ray according to described ground floor and the described second layer, the step of the composition of ground floor and the described second layer comprises:
By the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively with obtain in advance described in the disappear standard transparent conductive layer spectral line of characteristic X-ray of shadow layer spectral line and described transparency conducting layer of the standard of characteristic X-ray of shadow layer that disappears compare, wherein, its composition that described ground floor is consistent with the shadow layer spectral line that disappear with described standard in the described second layer and the described shadow layer that disappears consistent, its composition consistent with described standard transparent conductive layer spectral line and described transparency conducting layer consistent.
8. detection method according to claim 6, is characterized in that, the step of the composition of third layer described in the spectrum analysis of the described characteristic X-ray according to described third layer and described 4th layer and described 4th layer comprises:
By the standard silica layer spectral line comparison of the spectral line of the characteristic X-ray of described third layer with the characteristic X-ray of the described silicon dioxide layer obtained in advance; if consistent, the composition of described third layer is consistent with the composition of described silicon dioxide layer; compared by the standard organic insulation protective seam spectral line of the spectral line of the characteristic X-ray of described 4th layer with the characteristic X-ray of the described organic insulation protective seam obtained in advance, if consistent, the composition of described 4th layer is consistent with the composition of described organic insulation protective seam.
9. the pick-up unit of a touch-screen coating, it is characterized in that, described touch-screen comprises substrate and touch-screen coating, described touch-screen coating comprises the ground floor be arranged on substrate and the second layer arranged on the first layer, in described ground floor and the described second layer, one is the shadow layer that disappears, another one is transparency conducting layer, and described pick-up unit comprises:
Characteristic X-ray acquiring unit, for obtaining the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively;
Spectrum analysis unit, for the characteristic X-ray according to described ground floor and the described second layer spectrum analysis described in the composition of ground floor and the described second layer;
Processing unit, for to judge according to the composition of described ground floor and the described second layer in described ground floor and the described second layer whichever for described in disappear shadow layer, whichever is described transparency conducting layer, whether qualified to judge described touch-screen coating, wherein, if described ground floor is transparency conducting layer, the described second layer for disappear shadow layer then described touch-screen coating be qualified, otherwise, then defective.
10. pick-up unit according to claim 9, is characterized in that, described characteristic X-ray acquiring unit comprises:
Electron-beam excitation device, irradiates described touch-screen coating surface to excite the characteristic X-ray of described ground floor and the described second layer for divergent bundle;
Electron microscope and power spectrum detection instrument, for observing and obtaining the spectral line of the characteristic X-ray of described ground floor and the described second layer respectively.
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| JPH1195239A (en) * | 1997-09-25 | 1999-04-09 | Toshiba Corp | Production of liquid crystal display device |
| US20080296499A1 (en) * | 2007-05-31 | 2008-12-04 | Fei Company | Charged Particle Instrument Equipped with Optical Microscope |
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