CN104685391A - Optical film manufacturing device and bonding system - Google Patents

Abstract

An optical film manufacturing device includes: a transport device for transporting an optical film; a corona processing device, disposed on the transport path of the optical film, for generating corona discharge in the width direction of the optical film, which is perpendicular to the transport direction of the optical film, and applying corona processing to a surface of the optical film; and an inspection device for inspecting the amount of light emitted by corona discharge in the width direction of the optical film.

Description

The manufacturing installation of blooming and applying system

Technical field

The present invention relates to manufacturing installation and the applying system of blooming.

The Patent 2012-223299 CLAIM OF PRIORITY that the application applied in Japan based on October 5th, 2012, here cites its content.

Background technology

The blooming such as polarizing coating, phase retardation film is the important optical element forming liquid crystal indicator.Such as, in liquid crystal indicator, polarizing coating is respectively configured with one as rectangular-shaped blooming piece in the upper and lower surface of liquid crystal panel.The structure that polarizing coating such as adopts the polarization film body be made up of PVA (polyvinyl alcohol (PVA)) etc. to be clamped by two diaphragms be made up of TAC (Triafol T) film etc.Polarization film body is required that high adhesiveness is peeled off from polarization film body to avoid diaphragm.

In the past, by implementing corona treatment to the surface of film, upgrading being carried out to the surface of film, and increasing the water wettability on the surface of film, thus improving cementability.In the production line etc. of factory, the gap between electrode and treatment tube produces corona discharge, makes the film being wound into roll form sheet and with the speed of regulation by the gap between electrode and treatment tube, implement corona treatment to the surface of film.Then, the film implementing corona treatment is wound into roll, thus makes blank roller Roll Sushi (for example, referring to patent documentation 1).

Blank roller Roll Sushi is imported into the applying system of blooming.The film rolled out from blank roller Roll Sushi is cut into given size, and fits in liquid crystal panel.Then, check that the laminating between blooming and liquid crystal panel is defective by appearance inspection device.

At first technical literature

Patent documentation

Patent documentation 1: Japanese Laid-Open 2001-305052 publication

According to corona treatment, by accordingly the output valve of corona discharge being set to the value of regulation with the kind of film, thus the cementability on the surface of film can be improved.But, according to the knowledge opinion of present inventor, sometimes no matter whether control the output valve of corona discharge rightly to implement corona treatment, in visual examination operation, all find that the laminating caused because intermembranous bonding force is not enough is defective.Be found in the defective visual examination when blooming being fitted in liquid crystal panel like this.Therefore, need to peel off blooming and the correcting process of blooming of again fitting from liquid crystal panel, become and reduce productive reason.

Summary of the invention

The problem that invention will solve

The object of the solution of the present invention is to provide a kind of manufacturing installation and the applying system that can detect the underproof blooming of laminating caused because intermembranous bonding force is not enough in advance.

For solving the means of problem

In order to realize above-mentioned object, the manufacturing installation of the blooming involved by the solution of the present invention and applying system adopt following structure.

(1) manufacturing installation of the blooming involved by a scheme of the present invention comprises: conveying device, its feeding optical film; Corona treatment plant, it is configured on the transport path of described blooming, and the Width of the described blooming orthogonal with the throughput direction of described blooming produces corona discharge, implements corona treatment thus to the surface of described blooming; And testing fixture, the light quantity of its light produced by described corona discharge throughout the whole Width inspection of described blooming.

(2) on the basis of the manufacturing installation of the blooming described in above-mentioned (1), described testing fixture also can comprise CCD camera, and this CCD camera is carried out photosensitive to the light produced by described corona discharge.

(3) applying system involved by another program of the present invention comprises: the manufacturing installation of above-mentioned (1) or the blooming described in (2); Judgment means, it judges whether the light quantity of the light produced by described corona discharge is comprised within the limits prescribed; Shearing device, it will be judged as that by described judgment means the part be not included in the scope of described regulation cuts as defective part from the blooming utilizing the manufacturing installation of described blooming to produce, and forms the blooming that there is not described defective part; Retracting device, it reclaims described defective part; And laminating apparatus, the blooming that there is not described defective part formed by described shearing device is fitted in laminating object by it.

Invention effect

According to the solution of the present invention, the laminating caused because intermembranous bonding force is not enough can be detected in advance defective.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the manufacturing installation of the blooming illustrated involved by one embodiment of the present invention.

Fig. 2 is the partial perspective view of the manufacturing installation of blooming.

Fig. 3 is the figure of the configuration relation that CCD camera and treatment tube are shown.

Fig. 4 A illustrates electric discharge to be exported the position of Width of blooming when being set as 800W and the figure of the relation of light quantity grade.

Fig. 4 B illustrates electric discharge to be exported the position of Width of blooming when being set as 800W and the figure of the relation of light quantity grade.

Fig. 5 is the figure of the brief configuration of the applying system illustrated involved by one embodiment of the present invention.

Fig. 6 is the vertical view of the example that liquid crystal panel is shown.

Fig. 7 is the sectional view of the example that optical sheet is shown.

Fig. 8 A illustrates electric discharge to be exported the position of Width of blooming when being set as 1200W and the figure of the relation of light quantity grade.

Fig. 8 B illustrates electric discharge to be exported the position of Width of blooming when being set as 1200W and the figure of the relation of light quantity grade.

Fig. 9 A illustrates electric discharge to be exported the position of Width of blooming when being set as 1000W and the figure of the relation of light quantity grade.

Fig. 9 B illustrates electric discharge to be exported the position of Width of blooming when being set as 1000W and the figure of the relation of light quantity grade.

Figure 10 A illustrates electric discharge to be exported the position of Width of blooming when being set as 600W and the figure of the relation of light quantity grade.

Figure 10 B illustrates electric discharge to be exported the position of Width of blooming when being set as 600W and the figure of the relation of light quantity grade.

Figure 11 A illustrates electric discharge to be exported the position of Width of blooming when being set as 400W and the figure of the relation of light quantity grade.

Figure 11 B illustrates electric discharge to be exported the position of Width of blooming when being set as 400W and the figure of the relation of light quantity grade.

Figure 12 A illustrates electric discharge to be exported the position of Width of blooming when being set as 300W and the figure of the relation of light quantity grade.

Figure 12 B illustrates electric discharge to be exported the position of Width of blooming when being set as 300W and the figure of the relation of light quantity grade.

Figure 13 A illustrates electric discharge to be exported the position of Width of blooming when being set as 230W and the figure of the relation of light quantity grade.

Figure 13 B illustrates electric discharge to be exported the position of Width of blooming when being set as 230W and the figure of the relation of light quantity grade.

Embodiment

Hereinafter, with reference to the accompanying drawings of embodiments of the present invention, but the invention is not restricted to following embodiment.

It should be noted that, in following whole accompanying drawings, in order to easily observe accompanying drawing, making the size of each inscape, ratio etc. suitably different.In addition, in the following description and accompanying drawing, the Reference numeral identical to identical or equivalent element annotation, the repetitive description thereof will be omitted.

In the following description, set XYZ orthogonal coordinate system as required, be described with reference to the position relationship of this XYZ orthogonal coordinate system to each component.In the present embodiment, the Width of rectangular blooming is set to X-direction, direction (throughput direction of rectangular blooming) orthogonal with X-direction in the plane of blooming is set to Y-direction, the direction orthogonal with X-direction and Y-direction is set to Z-direction.

Fig. 1 is the schematic diagram of the manufacturing installation of the blooming illustrated involved by one embodiment of the present invention.Below, as blooming, the example manufacturing the polarization film body forming polarizing coating is described, but is not limited to this.Blooming also can be the diaphragm forming polarizing coating except polarization film body.In addition, can be phase retardation film, brightness enhancement film etc., also can be by film stacked for multiple to phase retardation film, polarizing coating etc. optical element.

The structure that polarizing coating such as adopts the polarization film body be made up of PVA (polyvinyl alcohol (PVA)) etc. to be clamped by two cellulose membranes and TAC (Triafol T) film as diaphragm.

In order to block the light beyond the light that vibrates on fixed-direction, polarization film body is by double-colored pigment dyeing such as such as iodine, dichromatic dye etc.Polarizing coating style is as formed by making the PVA film after utilizing double-colored pigment dyeing extend on an axis.

As diaphragm, except TAC film, also can use COP (cyclic olefin polymer) film, PET (polyethylene terephthalate) film, MMA (methyl methacrylate) film etc.

As shown in Figure 1, the manufacturing installation 1 of blooming possesses: conveying device 2, and the blooming of its conveying strip is (below, sometimes referred to as blooming.); Corona treatment plant 3, it is configured on the transport path of blooming, (below, is sometimes referred to as film cross direction at the Width of the blooming orthogonal with the throughput direction of blooming.) on produce corona discharge, corona treatment is implemented to the surface of blooming; Testing fixture 4, the light quantity of its light produced by corona discharge throughout the whole Width inspection of blooming; Control device 5, it carries out the control of front; And distributed control system 6 (Distributed Control System, hereinafter sometimes referred to DCS.), it is electrically connected with testing fixture 4 and control device 5.

Conveying device 2 possesses: filling portion 20, and it is loaded the blooming not implementing corona treatment and (below, is sometimes referred to as untreated film.) Fa; Conveying roller 21a, conveying roller 21b, the untreated film Fa loaded in filling portion 20 carries to downstream by it; Conveying roller 21c, conveying roller 21d, it implements the blooming of corona treatment (hereinafter referred to as processing film forming by utilizing corona treatment plant 3.) Fb carries to downstream; Winder 23, its winding processes film forming Fb.

Corona treatment plant 3 possesses corona treatment portion 30 and the treatment tube 31 arranged opposite with corona treatment portion 30.

Fig. 2 is the partial perspective view of the manufacturing installation 1 of blooming.In fig. 2, the corona treatment plant 3 that the manufacturing installation 1 forming blooming is shown is amplified.

As shown in Figure 2, corona treatment portion 30 possesses the electrode 32 arranged opposite with treatment tube 31 and is configured in the ozone exhaust passage 33 of top of electrode 32.

Electrode 32 extends along film cross direction.The length of the electrode 32 on film cross direction is in fact equal with the length of the treatment tube 31 on film cross direction.In the present embodiment, use pottery as the formation material of electrode 32.In addition, as the formation material of electrode 32, such as, also aluminium, stainless steel and other metal materials can be used.

The pipe arrangement 33b that ozone exhaust passage 33 possesses rectangular-shaped case component 33a and is connected with the upper surface of case component 33a.Case component 33a is arranged to surrounding's (part beyond the part opposed with treatment tube 31 of electrode 32) of coated electrode 32.Thereby, it is possible to the ozone produced because of corona treatment is externally discharged.

Treatment tube 31 ground connection.In the present embodiment, use stainless steel products as treatment tube 31.In addition, as treatment tube 31, such as, also the dielectric clad roller such as silica gel roller can be used.It should be noted that, treatment tube 31 can correspondingly use various roller according to the combination with electrode 32.

As shown in Figure 1, control device 5 is unified controls conveying device 2, corona treatment plant 3 and testing fixture 4.Such as, by the control of control device 5, set the transporting velocity of blooming, the output of corona discharge, the speed of feed for the treatment of tube 31 respectively.The output of the speed of feed of blooming, corona discharge (is comprised the connection-cut-out of corona discharge by control device 5.), the information such as the speed of feed for the treatment of tube 31 sends to DCS6.

As shown in Figure 1 and Figure 2, the untreated film Fa loaded in filling portion 20 is mounted to, winding end on the outer peripheral face of untreated film Fa is drawn out of in the form of sheets, guided by conveying roller 21a, conveying roller 21b and pass through between electrode 32 and treatment tube 31, and guided by conveying roller 21c, conveying roller 21d and winder 23 can be wound in.When by the control of control device 5 to when applying the high voltage of high frequency between electrode 32 and treatment tube 31, air generation insulation breakdown and ionization, produce corona discharge thus.By making untreated film Fa inner by corona discharge with the speed of regulation, thus corona treatment is implemented to the surface of electrode 32 side of untreated film Fa.Thus, acquisition processes film forming Fb (the polarization film body as blooming).

It should be noted that, in corona treatment, by changing the kind of electrode 32, the interval between electrode 32 and treatment tube 31, the voltage applied, the translational speed of processed blooming and the output etc. of corona discharge, and the surfaction process desired by the surface of blooming is implemented.Such as, the translational speed of blooming also can be set as more than 3m/ minute and the speed of the scope of less than 50m/ minute.

In the present embodiment, the interval between electrode 32 and treatment tube 31 is set as 1mm.The output of corona discharge is set as 800W.The translational speed of blooming is set as more than 10m/ minute and the speed of the scope of less than 30m/ minute.

As shown in Figure 1, testing fixture 4 is configured in the downstream of corona treatment plant 3.

Testing fixture 4 possess to the light produced by corona discharge (following, be sometimes called corona discharge light.) calculation element 41 that carries out photosensitive CCD camera 40 and be electrically connected with CCD camera 40.Testing fixture 4 based on the light received by CCD camera 40 light quantity and check the deviation on the film cross direction of the discharge current density of corona discharge.Testing fixture 4 as the change of the discharge current density for successively knowing corona discharge surveillance (corona surveillance) and play function.

The instruction that DCS6 sends corona supervision to testing fixture 4 (comprises the connection-cut-out of testing fixture 4.), the instruction of guard condition (comprises method No..) etc. information.Testing fixture 4 send to DCS6 the Width of blooming position and light quantity grade, with or without producing the information such as exception.

Although not shown, but in CCD camera 40, be provided with multiple CCD light being converted to electric signal and then convert image to.CCD camera 40 is so-called CCD linear sensor cameras that multiple CCD is configured to wire.

Such as, as the lens used in CCD camera 40, the lens that use focal length is 24mm (f24), f-number (F value) is 2.8, aperture is 4 (one-level apertures).Aperture 4 (one-level aperture) represents, when by f-number being the lens de-magnification one-level aperture of 2.8, f-number becomes 4.

The visual field width of CCD camera 40 is about 760mm.The photosensitive distance of CCD camera 40 is about 930mm.The sweep velocity of CCD camera 40 is 999.9 microseconds.

Calculation element 41 calculates light quantity grade based on the sensitization data of CCD camera 40, obtains the position of the Width of blooming and the relation of light quantity grade.It should be noted that, " light quantity grade " and " position of the Width of blooming and the relation of light quantity grade " is in rear explanation.

Below, DCS6 is described.

DCS6 receives the state of front by serial communication (RS-422) from control device 5, when meeting fixing condition, by ethernet communication (IEEE802.310BASE-T), testing fixture 4 is sent to the instruction of corona supervision.

Specifically, fixing condition is, the speed of (1) front is more than fixed value (film is in flowing); (2) corona discharge be designated as ON (in corona treatment); (3) have issued corona by the operating personnel's operation on DCS6 and monitor instruction.When above-mentioned (1) ~ (3) all meet, send corona and monitor instruction.That is, as long as when having one not satisfy condition in (1) ~ (3), corona is just stopped to monitor instruction.

Testing fixture 4 accepts to monitor instruction from the corona of DCS6, starts to carry out corona supervision, the data of the position of the Width of blooming and light quantity grade is sent to DCS6.This data real-time update (about every 3 seconds).DCS6 monitors the situation that light quantity grade is passed in the scope of the threshold value preset all the time, when having departed from scope, is shown in the monitor in DCS6, and makes external alarm message device (emergency warning lamp, hummer etc.) action.Thus, operating personnel are made to recognize exception.In addition, not only make operating personnel recognize the exception of light quantity grade, make operating personnel recognize the exception of testing fixture 4 equally.DCS6 preserves the historical data of the passing of light quantity grade.

Fig. 3 is the figure of the configuration relation that CCD camera 40 (first camera 40a, second camera 40b) and treatment tube 31 are shown.In the following description, enumerate and be configured with two CCD camera 40a on film cross direction, the example of CCD camera 40b is described, but the configurable number of CCD camera is not limited thereto.

The configurable number of CCD camera correspondingly suitably can change according to the size of the visual field width of CCD camera, film width.Such as, under wanting to put forward high-resolution situation, also can increase the configurable number of CCD camera, and carry out reduced field of view width by changing the lens used in CCD camera.

It should be noted that, when carrying out corona treatment, the resolution of the film cross direction of CCD camera also can be made to be 100 μm/about pixel.

In figure 3, Reference numeral AR1 be feeding optical film in treatment tube 31 region (following, be sometimes called film conveyor zones.)。Reference numeral AR2 is that the region that region, the i.e. surface for the treatment of tube 31 of the not feeding optical film at the both ends for the treatment of tube 31 is exposed (below, is called roller exposed area sometimes.)。Reference numeral W1 be length, the i.e. blooming of film conveyor zones AR1 on film cross direction width (following, sometimes referred to as film width.)。Reference numeral W2 is the length of the roller exposed area AR2 on film cross direction.Reference numeral W3 is the total length of length, the i.e. treatment tube 31 for the treatment of tube 31 on film cross direction.Reference numeral Wa is the visual field width of the first camera 40a in two CCD camera 40.Reference numeral Wb is the visual field width of second camera 40b.Reference number C L be treatment tube 31 on film cross direction center line (following, sometimes referred to as center line.)。

In the present embodiment, film width W 1 is 1500mm, and the total length W3 for the treatment of tube 31 is that the visual field width W a of 1800mm, CCD camera 40a and the visual field width W b of CCD camera 40b are respectively 760mm.

Two CCD camera 40a, CCD camera 40b consider that film wriggles amplitude and to be configured to shooting film width overall.In the present embodiment, first camera 40a be configured to photographing process roller 31-the film conveyor zones AR1 in X-direction side (left side), second camera 40b be configured to photographing process roller 31+the film conveyor zones AR1 on X-direction side (right side).

Specifically, first camera 40a be configured to visual field width W a+edge (edge on right side) of X-direction side is positioned at centre line C L.Second camera 40b be configured to visual field width W b-edge (edge in left side) of X-direction side is positioned at centre line C L.It should be noted that, the visual field width W a of first camera 40a+end (end on right side) of X-direction side and the visual field width W b of second camera 40b-end (end in left side) of X-direction side also can near centre line C L part superposition.

Thus, even if blooming is advanced tortuously (wriggle amplitude 10mm), also can make the overall width (1500mm) of blooming in the scope of the visual field width (visual field width 760mm of the visual field width 760mm and second camera 40b of first camera 40a being added the width 1520mm of gained) of CCD camera 40a, CCD camera 40b.

In addition, if can make the overall width of blooming be in CCD camera 40a, CCD camera 40b visual field width scope in, then can detect the light quantity of the discharging light of corona discharge exactly throughout the whole Width of blooming.

According to the research of the present inventor, specify known, between discharge current density and the intensity of intermembranous bonding force, there is high correlation.In addition, also specify that, between discharge current density and the light quantity of discharging light, there is high correlation, CCD camera especially can be used to detect the deviation of the light quantity of discharging light accurately.Though its reason is failed to understand, think, CCD camera converts light to electric signal, and because the light quantity of discharging light changes according to discharge current density, therefore for both sides, the mechanism producing above-mentioned correlativity is similar.Thus, if use the distribution of the light quantity of the discharging light in the face of CCD camera detecting optical film, then the underproof generating unit of laminating that can cause because intermembranous bonding force is not enough with high-precision forecast, can contribute to the raising of fabrication yield.

Below, discharge current density and discharging light are described.

Discharging light is by the charged particle of releasing from sparking electrode and gas molecule collision and producing.

By improving discharge current, give energy (kinetic energy and internal energy sum) to more charged particle.Consequently, the collision energy of charged particle and gas molecule increases, and the light quantity of discharging light also increases thereupon.

Energy equilibrium represents in fact as follows: energy (kinetic energy and internal energy the sum) × charged particle number+radiation+heat transfer of energy=each charged particle of electric discharge.

Because the larger then electric power of electric current is larger, therefore, though the average energy of each charged particle ( temperature) fixing, the charged particle larger due to energy increases, and therefore radiates increase.In fact, when the current increases, temperature changes because of heating, thus the internal energy change of charged particle.Thus, radiation increases, and heat transfer also increases simultaneously.

Exist from the radiant density of material and the proportional stefan boltzmann's law of 4 powers of temperature.Being be that whole spectrum of the visible region of light are added the total emission energy obtained by comprising human perception due to radiation, therefore radiating the luminescence that all can not convert the visible ray of only human perception or the spectral sensitivity region of CCD element to.Owing to being energy density, the total amount of therefore radiating and the surface area of luminophor proportional.

Thus, energy is not all converted to luminescence, so luminous quantity and electric current or current density is proportional or can not represent uniquely by relational expression with square proportional etc.

The information of the light quantity of discharging light is relevant to the positional information of the long side direction of blooming and Width, such as, as image mapped, is stored in storage part and the testing fixture 4 of DCS6 respectively.Thus, the part that the light quantity easily removing discharging light in applying system described later does not control in suitable scope (produces abnormal in corona discharge, suitably do not carry out the part of surfaction: unusual part), the part of the fader control of discharging light in suitable scope (do not produce exception in corona discharge, be appropriately the part of surfaction: part without exception) is used in product.

It should be noted that, the light quantity can not removing discharging light in applying system described later does not control the part (unusual part) in suitable scope yet, even if there is unusual part does not regard as defective for the time being yet, but emphasis checks that final products confirm whether quality aspect has problems.

Next, the inspection of the light quantity of the discharging light of the corona discharge undertaken by the testing fixture 4 of present embodiment is described.

Fig. 4 A, Fig. 4 B illustrate electric discharge to be exported the position of Width of blooming when being set as 800W and the figure of the relation of light quantity grade.

Fig. 4 A implements single pass (acquisitions of data) every 999.9 microseconds and the light quantity data of a minute, namely 1000 times/second × 60 seconds=60000 times light quantity data is drawn on continuously the figure of same chart (repeating to write).

Fig. 4 B is the figure that the data not repeating the single pass write are shown.

In Fig. 4 A, Fig. 4 B, transverse axis represents the position of the Width of blooming, and the longitudinal axis illustrates the photosensitive light quantity of the corona discharge light that light quantity grade receives as CCD camera 40.

At this, light quantity grade illustrates the photosensitive light quantity of corona discharge light with 256 GTGs.It should be noted that, represent light quantity grade based on data, the i.e. so-called raw data of the photosensitive light quantity of the corona discharge light do not received by CCD camera, and represent light quantity grade based on data (rationalization data) after impact raw data being eliminated to the noises such as illumination light.

The transverse axis of Fig. 4 A, Fig. 4 B is corresponding with the visual field width (760mm) of a CCD camera in two CCD camera 40, if represent with pixel, is equivalent to 4096pixel.The longitudinal axis of Fig. 4 A, Fig. 4 B illustrates 256 GTGs, in Figure 4 A, makes that the lower limit of light quantity grade is 0, higher limit is 255 to illustrate.

As shown in Fig. 4 A, Fig. 4 B, the mean value of light quantity grade electric discharge exported when being set as 800W is 127, is the roughly half of 256 GTGs.Light quantity grade in the whole region of the Width of blooming to a certain degree to change.When the whole region of the Width of viewing optics film, the mobility scale of light quantity grade is 97 ~ 156.As shown in Figure 4 A, the mobility scale of light quantity grade is expanded in banded in the whole region of the Width of blooming.

But according to the difference of the position of the Width of blooming, the mobility scale of light quantity grade is different.Such as, the Width of blooming is equivalent to the position of pixel 600pixel, the lower limit of light quantity grade is lower than other positions.That is, on the Width of blooming, the discharge current density of corona discharge diminishes, and fully may not carry out the surfaction of blooming.

In the present embodiment, by the setting threshold value up and down of the light quantity grade when electric discharge output being set as 800W, thus can be included in light quantity grade and be judged as normally by the scope of upper and lower prescribed threshold, be not included in light quantity grade and be judged as exception by the scope of upper and lower prescribed threshold.Such as, that is the value of the mean value 127 low 50 than light quantity grade 77 is set as threshold value, if on the Width of blooming, the lower limit of the mobility scale of light quantity grade be included in threshold value be lower limit scope in (identical with threshold value or higher than the situation of threshold value), then identical with threshold value or higher than threshold value part is judged as normally, not being contained in threshold value in the situation (situation lower than threshold value) in the scope being lower limit, the part lower than threshold value is judged as exception.

It should be noted that, also can be, be not only the situation of lower limit lower than threshold value of the mobility scale of light quantity grade on the Width of blooming, the higher limit of the mobility scale of light quantity grade or mean value are lower than threshold value on the Width of blooming, also the part lower than threshold value is judged as exception.

The information relevant to the light quantity of discharging light is stored in the storage part of DCS6 in the mode that the information of being correlated with the long side direction of blooming and the position of Width is associated.Further, in applying system described later, read these information from storage part, the blooming of the part being judged as light quantity grade exception is excised as defective position, is reclaimed by retracting device.Thus, the generation of the laminating caused because of corona treatment defective (the intermembranous laminating caused by bonding force deficiency is defective) is suppressed, and can provide the manufacturing system that yield rate is high.

As described above, the manufacturing installation 1 of blooming according to the present embodiment, can check the distribution of the discharging light of the corona discharge in the face of blooming by testing fixture 4.According to the research of the present inventor, between the distribution of discharging light and the distribution of discharge current density, there is high correlation, and, there is high correlation between the intensity (intermembranous bonding force) of discharge current density and surfaction.Therefore, by obtaining the distribution of discharging light, can, predicting the underproof generating unit of laminating caused because intermembranous bonding force is not enough before liquid crystal panel laminating blooming, can contribute to improving fabrication yield.

In addition, because testing fixture 4 possesses, photosensitive CCD camera 40 is carried out to corona discharge light, therefore, it is possible to check the light quantity of the discharging light of corona discharge in real time.In addition, according to this structure, without the need to checking the wettability of the surface of the blooming implementing corona treatment separately.Therefore, it is possible to simply and be promptly confirmed whether uniformly to implement corona treatment at blooming.

It should be noted that, in the present embodiment, as an example, the position of Width and the relation of light quantity grade that electric discharge are exported blooming when being set as 800W are illustrated, but are not limited thereto.Such as, electric discharge exports and can also be set as 1200W, 1000W, 600W, 400W, 300W, 230W etc. according to suitably needing in addition.So, when changing the setting value that electric discharge exports, also the present invention can be applied.

(applying system)

Hereinafter, with reference to the accompanying drawings of the applying system involved by one embodiment of the present invention.

Fig. 5 is the figure of the brief configuration of the applying system 100 illustrated involved by one embodiment of the present invention.

As shown in Figure 5, applying system 100 possesses: the manufacturing installation 1 (omitting diagram) of the blooming involved by above-mentioned embodiment; Judgment means 110, it judges whether the light quantity of the discharging light of corona discharge comprises within the limits prescribed; Shearing device 106, it will be judged as that by judgment means 110 part do not comprised within the limits prescribed cuts as defective part from blooming, forms the blooming that there is not defective part; Retracting device 107, it reclaims defective part; And laminating apparatus 108, the blooming that there is not defective part utilizing shearing device 106 to be formed is fitted in laminating object by it.

It should be noted that, in applying system 100, the mode be associated with the information relevant to the long side direction of blooming and the position of Width be stored in the storage part of DCS6 (with reference to Fig. 1), testing fixture 4, the information (such as image mapped) relevant with the light quantity of discharging light can read by judgment means 110.

Applying system 100 can at fit area A1 to optical components such as the such as laminating such as liquid crystal panel, organic EL panel object laminating polarization plates, antireflection film, light-diffusing films.Thus, applying system 100 can manufacture the equipment containing laminating object and optical component.Applying system 100 also can be part or all of the manufacturing system manufacturing above-mentioned equipment.

The retracting device 107 of present embodiment can by comprise in the optical sheet of optical component, to get rid of from the path towards fit area A1 containing the optical component of defective part and to reclaim.That is, applying system 100 can will not fit in laminating object containing defective optical component.Before the detailed description of applying system 100, first the structure example of optical sheet and the structure example of liquid crystal panel are described.

Fig. 6 is the vertical view of the structure example that liquid crystal panel is shown.Illustrate liquid crystal panel when overlooking from the thickness direction of liquid crystal layer in figure 6.The liquid crystal layer P3 that liquid crystal panel P shown in Fig. 6 possesses first substrate P1 and first substrate P1 second substrate P2 arranged opposite and encloses between first substrate P1 and second substrate P2.In liquid crystal panel P, the scope being housed in the inner side of the periphery of liquid crystal layer P3 when overlooking becomes viewing area P4.

Fig. 7 is the sectional view of the structure example that optical sheet is shown.The optical sheet of this example is rectangular band shape, illustrates the section orthogonal with the long side direction of optical sheet in the figure 7.In the following description, sometimes by the long side direction of optical sheet referred to as long side direction.

Optical sheet F shown in Fig. 7 possesses: membranaceous optical component F1, the tack coat F2 be arranged in the one side of optical component F1, across tack coat F2 with the stacked separation layer F3 of the mode that can be separated with optical component F1 and the surface protection film F4 that is arranged on the another side of optical component F1.

The optical component F1 of the optical sheet F of this example plays function as polarization plates, fits throughout the whole region of the viewing area P4 of liquid crystal panel P and the neighboring area of viewing area P4.

Optical component F1 has tack coat F2 and separation layer F3 fits in laminating object across tack coat F2 from the state that tack coat F2 is separated at the left on surfaces of optical component F1.Separation layer F3 protects tack coat F2 and optical component F1 during before tack coat F2 separation.Surface protection film F4 fits in laminating object together with optical component F1, is configured in the side contrary with object of fitting relative to optical component F1.The moment that surface protection film F4 is taking the circumstances into consideration to select of this example is separated from optical component F1.Surface protection film F4 protects optical component F1 during before optical component F1 separation.

It should be noted that, optical component F1 also can not comprise surface protection film F4.In addition, surface protection film F4 also can not be separated from optical component F1.In the following description, the part sometimes obtained removing separation layer F3 from optical sheet F is called adhesive piece F5.

Optical component F1 has polarization film body F6, be engaged in the first film F7 of the one side of polarization film body F6 by bonding agent etc. and be engaged in the second film F8 of another side of polarization film body F6 by bonding agent etc.The film forming Fb that processes that the polarization film body F6 of present embodiment is equivalent to the manufacturing installation 1 by above-mentioned blooming produces implements the film of corona treatment further, namely implements the film of corona treatment to the film table back side at the film back side.First film F7 and the second film F8 is the diaphragm protecting polarization film body F6.

It should be noted that, optical component F1 can be the monolayer constructions will be made up of one deck optical layers, also can be the lit-par-lit structure that multiple optical layers is laminated mutually.Except above-mentioned polarization film body F6, optical layers also can be phase retardation film, brightness enhancement film etc.At least one party of the first film F7 and the second film F8 also can implement to comprise surface treatment that protect the hardening coat process of the outmost surface of liquid crystal display cells or anti-glare process, that can obtain the effect such as anti-dazzle.In addition, at least one party of the first film F7 and the second film F8 also can not be set.Such as, optical sheet F also can omit the first film F7, adopts separation layer F3 to fit in the structure of the one side of optical component F1 across tack coat F2.

Next, the applying system 100 of present embodiment is described in detail.

The defect of feeding optical sheet F one side, the applying system 100 one side detecting optical component F1 shown in Fig. 5, form incision line by carrying out hemisect to optical sheet F in multiple positions of long side direction, can form by incision line the multiple monolithics divided along long side direction.

It should be noted that, the light quantity for the discharging light of corona discharge does not comprise defective part within the limits prescribed, detects based on the image mapped illustrated with above-mentioned embodiment.

Optical component F1 in multiple monolithic can not fit containing the adhesive piece of defective qualified monolithic F10 and each liquid crystal panel P of transporting from the upstream of the production line of liquid crystal display cells at fit area A1 by applying system 100.Optical component F1 in multiple monolithic can reclaim containing defective defective monolithic F13 by applying system 100, and does not make the adhesive piece of defective monolithic 13 and liquid crystal panel P fit.

In the present embodiment, the direction parallel with the long limit of viewing area P4, liquid crystal panel P mono-edge is carried, and is parallel to the optical component F1 that liquid crystal panel P carries and fits.The size of the Width orthogonal with long side direction of optical sheet is such as set as more than the length of the minor face of the viewing area P4 at liquid crystal panel P and below the external dimensions of liquid crystal panel P on the direction parallel with the minor face of viewing area P4.The length of the long side direction of the monolithic of fitting with liquid crystal panel (below, is called unit length sometimes.) be such as set as more than the size on the long limit of the viewing area P4 at liquid crystal panel P and below the external dimensions of liquid crystal panel P on the direction parallel with the long limit of viewing area P4.

It should be noted that, applying system 100 also can in the following way: liquid crystal panel P carries along the direction parallel with the minor face of viewing area P4, and is parallel to the optical component F1 that liquid crystal panel P carries and fits.In this approach, the size of the Width of optical sheet F and above-mentioned unit length suitably change according to the size of the minor face of the viewing area P4 of liquid crystal panel P, the size etc. on long limit.

Applying system 100 possesses conveying device 101, and this conveying device 101 can extract optical sheet F out from the roller Roll Sushi R being wound with optical sheet F, is carried by least separation layer F3 in optical sheet F along long side direction.Conveying device 101 with separation layer F3 for adhesive piece F5 carries by carrier together with separation layer F3.

Conveying device 101 possesses: optical sheet supply unit 102, and its transport path being equivalent to separation layer F3 (below, is called for short transport path sometimes.) starting point; Coiling machine 103, it is equivalent to the terminal of transport path; Multiple roller, it forms the transport path of separation layer F3 between optical sheet supply unit 102 and coiling machine 103; And device for measuring length 104, it is arranged at least one of multiple roller.In the following description, sometimes be called upstream side by relative to the optional position on transport path close to the side of the starting point (optical sheet supply unit 102) of transport path, the side of the terminal (coiling machine 103) close to transport path is called downstream.

The applying system 100 of present embodiment possesses the multiple devices being configured on transport path and the optical sheet F in conveying being implemented to process.Applying system 100 possesses: pick-up unit 105, and it is configured in than the position of optical sheet supply unit 102 by the downstream of transport path, the defect of detecting optical component F1; Shearing device 106, it is configured in than the position of pick-up unit 105 by the downstream of transport path, implements hemisect to optical sheet F; Retracting device 107, it is configured in than the position of shearing device 106 by the downstream of transport path; Laminating apparatus 108, it is configured in fit area A1; And control device 109, it controls each several part of applying system 100.It should be noted that, control device 109 comprises judgment means 110.

The optical sheet supply unit 102 of conveying device 101 comprises drawing mechanism, and this drawing mechanism can maintaining roller Roll Sushi R make it rotate, and extracts optical sheet F out from roller Roll Sushi R to transport path.Coiling machine 103, when optical component F1 is separated with separation layer F3, in fact only reclaims separation layer F3.Coiling machine 103, when optical component F1 is not separated with separation layer F3, reclaims separation layer F3 and adhesive piece F5.

Multiple roller forms transport path by least separation layer F3 in erection optical sheet F.Multiple roller is made up of the roller selected from the roller of direct of travel of optical sheet F, the roller of the tension force of the optical sheet F that can adjust in conveying etc. that change in conveying.

The distance (fed distance) that device for measuring length 104 can be carried according to the rotation angle of roller and the length measurment optical sheet F of periphery being provided with device for measuring length 104.The measurement result of device for measuring length 104 exports to control device 109.Control device 109, according to the measurement result of device for measuring length 104, generates sheet positional information, and this sheet positional information represents any time during optical sheet F carries, and each point of the long side direction of optical sheet F is present in which position on transport path.

It should be noted that, conveying device 101 can suitably change, so that can according to the transport path feeding optical sheet of regulation.In addition, also can be that device for measuring length 104 can generate above-mentioned sheet positional information according to the measurement result of fed distance, and the sheet positional information of generation can be exported to control device 109.Can be that device for measuring length 104 generates sheet positional information, control device 109 generate sheet positional information yet.

Pick-up unit 105 can detect the defect in the optical component F1 of the optical sheet F be present in conveying.The pick-up unit 105 of present embodiment can by performing reflex, through the defect checking, tiltedly come through check processings such as inspections through inspection, cross Nicols detecting optical component F1 to the optical sheet F in conveying.

Pick-up unit 105 possesses: Lighting Division 111, and it can irradiate light to optical sheet F; And photodetector 112, its can detect from Lighting Division 111 irradiate and through (reflection and through one side or both sides) light after optical component F1, because of optical component F1 in have zero defect and the change that occurs.The defect of optical component F1 is such as: the part that there is the foreign matter be made up of at least one of solid, liquid, gas in the inside of optical component F1; Part that is concavo-convex or cut is there is on the surface of optical component F1; And the part etc. of bright spot is become because of the distortion of optical component F1 or the deflection of material etc.

Lighting Division 111 can irradiate the kind according to the inspection undertaken by above-mentioned pick-up unit 105 and correspondingly have adjusted the light of light intensity, wavelength, polarized light state etc.The photodetector 112 of present embodiment is made up of capturing elements such as CCD, can take the optical sheet F that the part of light is irradiated in illuminated portion 111.The testing result (shooting results) of photodetector 112 exports to control device 109.The image taken by photodetector 112 resolved by control device 109, can judge the presence or absence of defect.Control device 109 is when being judged as existing defects in optical component F1, and the measurement result with reference to device for measuring length 104 generates the defective locations information of the position on the optical sheet F representing defect.It should be noted that, comprise the out-of-the way position information generated with reference to the judged result of judgment means 110 by control device 109 in defective locations information, this out-of-the way position information represents that the light quantity of the discharging light of corona discharge does not comprise defective part (exception) position on optical sheet F within the limits prescribed.

A part for the thickness direction of optical sheet F is cut off (sometimes also referred to as hemisect along whole Width throughout the whole width of the Width orthogonal with long side direction of optical sheet F by shearing device 106.), form incision line.Incision line is formed in multiple positions of the long side direction of optical sheet F.Optical sheet F is divided by multiple incision on long side direction, is become a monolithic respectively by the zoning that a pair adjacent on long side direction incision line is clipped in the middle.

Control device 109 is with reference to above-mentioned defective locations information, and the interval that the first incision line that judging distance is formed by shearing device 106 is equivalent to the unit length of the long side direction of optical component F1 (below, is sometimes referred to as the interval of next monolithic.) in, whether there is the defect of optical component F1.Control device 109 according in the interval of next monolithic whether existing defects decide the position of the incision line next formed, generate the incision line position information representing the forming position of incision line on optical sheet F.

Control device 109 in the interval being judged as next monolithic not existing defects time, with make from the incision line of previous formation (following, be sometimes referred to as the first incision line L1.) (below, be sometimes referred to as the second incision line L2 to the incision line next formed.) optical sheet F on distance become the mode of above-mentioned unit length, determine the forming position of the second incision line L2.Control device 109 controls shearing device 106 in the following manner: when from the position being formed with the first incision line L1 by optical sheet F convey unit length when, shearing device 106 forms the second incision line L2.

Optical sheet F in from the first incision line L1 to the interval of the second incision line L2 becomes the qualified monolithic F10 with separation layer F3 and qualified adhesive piece, and described qualified adhesive piece comprises not containing defective optical component F1 (qualified optical component).

When control device 109 exists the defect of optical component F1 in the interval being judged as next monolithic, (below, be sometimes called the 3rd than the position decision incision line of defect by the upstream side of transport path and cutting line L3.) forming position.Control device 109 controls shearing device 106 to make shearing device 106 is leaning on the position of the upstream side of transport path to form the 3rd incision line L3 mode than defect.

Optical sheet F in from the first incision line L1 to the interval of the 3rd incision line L3 becomes the defective monolithic F13 with separation layer F3 and defective adhesive piece, and described defective monolithic F13 comprises containing defective optical component F1 (defective optical component).

The applying system 100 of present embodiment possesses the panel carrying device 113 liquid crystal panel P fitted with qualified adhesive piece can carried to fit area A1.Panel carrying device 113 possesses: panel maintaining part 114, and it can keep liquid crystal panel P; Panel moving part 115, it can make panel maintaining part 114 move to fit area A1's from the region of moving into moving into liquid crystal panel P to applying system 100; And conveying equipment 116, it can at fit area A1 by the direction conveying of liquid crystal panel P to regulation.In the present embodiment, the action moment of each several part of panel carrying device 113 is controlled by control device 109.

Panel maintaining part 114 is controlled by control device 109, is maintained by the upstream from the production line of liquid crystal display cells such as conveying equipment to moving into the liquid crystal panel P shipped in region by vacuum suction etc. in removably mode.Panel moving part 115 can make panel maintaining part 114 move in the vertical direction and in horizontal direction relative to conveying equipment 116.Under the state that panel moving part 115 maintains liquid crystal panel P in panel maintaining part 114, making panel maintaining part 114 move to fit area A1 from moving into region, in fact liquid crystal panel P can be moved to fit area A1.

Panel maintaining part 114 controlled device 109 controls, and can remove the absorption of liquid crystal panel P, and joined to conveying equipment 116 by liquid crystal panel P at fit area A1.Conveying equipment 116 to make to be delivered to the liquid crystal panel P of fit area A1 and to be delivered to fit area A1 and the mode of the mutual aligned position of qualified adhesive piece of fitting with liquid crystal panel P, can supply liquid crystal panel P to laminating apparatus 108.Panel moving part 115 and conveying equipment 116 controlled device 109 control in the following manner: the moment making liquid crystal panel P be transported to fit area A1 at the qualified monolithic F10 formed by shearing device 106 arrives fit area A1.

Qualified adhesive piece in qualified monolithic F10 and separation layer F3 are separated from each other by the retracting device 107 of present embodiment.Qualified adhesive piece after being separated with separation layer F3 and the liquid crystal panel P being delivered to fit area A1 are fitted by laminating apparatus 108.Separation layer F3 after retracting device 107 reclaims and is separated with qualified adhesive piece.Defective adhesive piece in defective monolithic F13 reclaims by retracting device 107 together with separation layer F3.

Retracting device 107 possesses: transferred unit, and monolithic for carrier with separation layer F3, reels and transfers (conveying) to point of a knife 117 by it; And judging part, it judges that the monolithic transferred to point of a knife 117 is defective monolithic F13 or qualified monolithic F10.

The transferred unit of present embodiment is configured to comprise point of a knife 117 and roller, and this roller forms the roller setting up separation layer F3 together with point of a knife 117 in multiple conveying rollers of conveying device 101.The roller set up together with point of a knife 117 in the roller of separation layer F3 is configured in than the guide reel 118 of point of a knife 117 by the position in the downstream of transport path.

The judging part of present embodiment is contained in control device 109.The judging part (control device 109) of present embodiment, according to above-mentioned sheet positional information, defective locations information and incision line position information, judges that the monolithic transported to point of a knife 117 is defective monolithic F13 or qualified monolithic F10.

In the present embodiment, the optical sheet F being delivered to retracting device 107 makes it one side is opposed with the one side of point of a knife 117 to carry towards leading section.Separation layer F3 is set up in leading section and guide reel 118, by relative to than the optical component F1 shape of the part acutangulate direction conveying of leading section by the downstream of transport path, and is that fulcrum bends with leading section.Thus, separation layer F3 is separated from qualified adhesive piece from the downstream (the first incision line L1 side) of the transport path long side direction successively towards upstream side (the second incision line L both sides).The separation layer F3 be separated with qualified adhesive piece reels to coiling machine 103 via guide reel 118 and is recovered.

The laminating apparatus 108 of present embodiment possesses a pair doubling roller 119.The liquid crystal panel P transported to fit area A1 is delivered between a pair doubling roller 119 by conveying equipment 116.

Liquid crystal panel P bonded to each other and qualified adhesive piece are parallel to each other and the mode parallel relative to the turning axle of a pair doubling roller 119 with the respective face contacted with each other after making laminating, are delivered between a pair doubling roller 119.The liquid crystal panel P be delivered between a pair doubling roller 119 and qualified adhesive piece clamp by a pair doubling roller 119 in laminating process, make it mutually press and fit.Qualified adhesive piece and the liquid crystal panel P after fitting carry to the downstream of the production line of liquid crystal display cells.By performing laminating process like this.

It should be noted that, the defective adhesive piece behind the leading section 19 of point of a knife 117 is wound in coiling machine 103 through guide reel 118 together with separation layer F3, reclaims in the same manner as separation layer F3.

The control device 109 of present embodiment is configured to comprise computer system.This computer system possesses the storage parts such as computing portion, storer and hard disk such as CPU.The control device 109 of present embodiment comprise can perform and computer system outside device between the interface of communication.Also the input media that input signal can be inputted can be connected on control device 109.Above-mentioned input media comprises the input equipment such as keyboard, mouse or can input the communicator etc. of data of device of the outside from computer system.Control device 109 also can comprise the display device such as the liquid crystal display of the running-active status of each several part representing applying system 100, also can be connected with display device.

The operating system (OS) of computer for controlling system is installed at the storage part of control device 109.Have program stored therein in the storage part of control device 109, this program makes the process of each several part of applying system 100 execution for getting rid of defective monolithic F13 by making computing portion control each several part of applying system 100.The computing portion of control device 109 can read the various information comprising the program being stored in storage part.Control device 109 also can comprise the logical circuits such as the ASIC of the various process required for control of each several part performing applying system 100.

Storage part conceptually comprises the external memories etc. such as the semiconductor memory such as RAM (random access memory), ROM (ROM (read-only memory)), hard disk, CD-ROM reading device, optical disc type storage medium.Functionally, storage part is set with and is stored with conveying device 101, pick-up unit 105, shearing device 106, retracting device 107, judgment means 110, the storage area of program software of control sequence of action of laminating apparatus 108 and other various storage area.

As mentioned above, the retracting device 107 of present embodiment can remove the defect of optical component F1 effectively.In addition, the applying system 100 of present embodiment can remove the defect of optical component F1 effectively, and will not fit containing defective optical component F1 (qualified adhesive piece) and laminating object.In addition, even if the recovery method of present embodiment does not use the removal film etc. beyond separation layer F3, also can remove defective adhesive piece, therefore, it is possible to effectively remove the defect of optical component F1.

It should be noted that, technical scope of the present invention is not limited to above-mentioned embodiment.Various deformation can be carried out without departing from the spirit and scope of the invention.

Above-mentioned applying system 100 by the defect of pick-up unit 105 detecting optical component F1, but also can use optical sheet F checked in advance before transporting, and uses this check result to determine whether qualified monolithic F10 by control device 109.Above-mentioned check result both can be formed on optical sheet F by forms such as symbols, also can input to control device as the data representing the defect distance such as position of the end of the long side direction of roller Roll Sushi R.So, when using optical sheet F checked in advance, also pick-up unit 105 can be omitted.

In addition, above-mentioned applying system 100 extracts optical sheet F out from the roller Roll Sushi R of winding optical sheet F, but the optical sheet supply unit 102 of conveying device 101 also can be the manufacturing installation of optical sheet F.The manufacturing installation of this optical sheet F both can be a part for applying system 100, also can be the device of the outside of applying system 100.

Above, the preferred embodiment example involved by present embodiment is illustrated with reference to accompanying drawing, but the present invention is not limited to described example is self-evident.Each shape, combination etc. of each member of formation shown in above-mentioned example are examples, can carry out various change without departing from the spirit and scope of the invention according to designing requirement etc.

Below, illustrate the present invention further based on embodiment, but the present invention is not limited to following embodiment.

(corona treatment plant)

Electrode in corona treatment plant and the interval between treatment tube are set as 1mm.As treatment tube, use the roller that total length is 1800mm.

(testing fixture)

CCD camera in testing fixture uses CCD linear sensor camera.Following camera is used: the focal length of the lens used is 24mm (f24) as CCD camera, f-number (F value) is 2.8, and aperture is 4 (one-level apertures), and visual field width is about 760mm, photosensitive distance is about 930mm, and sweep velocity is 999.9 microseconds.

It should be noted that, CCD camera is configured with two along film cross direction.In addition, the resolution of CCD camera use film cross direction is the camera of 100 μm/pixel.

(blooming)

As the blooming becoming check object, use the polarization film body be made up of PVA etc.As blooming, use the film that film width is 1500mm.

(embodiment)

As shown in Fig. 4 A, Fig. 4 B, the electric discharge of embodiment 1 exports and is set as 800W.The electric discharge of embodiment 2 exports and is set as 1200W.The electric discharge of embodiment 3 exports and is set as 1000W.The electric discharge of embodiment 4 exports and is set as 600W.The electric discharge of embodiment 5 exports and is set as 400W.The electric discharge of embodiment 6 exports and is set as 300W.The electric discharge of embodiment 7 exports and is set as 230W.

(inspection of the deviation on the film cross direction of corona discharge)

Embodiment 2 ~ 7 is investigated respectively to the position of the Width of blooming and the relation of light quantity grade.Embodiment 2 ~ 7 is confirmed to export setting value relative to the electric discharge of embodiment 1 respectively and whether there is significant difference.

Fig. 8 A, Fig. 8 B are the figure of the position of the Width of the blooming that embodiment 2 is shown and the relation of light quantity grade.

Fig. 9 A, Fig. 9 B are the figure of the position of the Width of the blooming that embodiment 3 is shown and the relation of light quantity grade.

Figure 10 A, Figure 10 B are the figure of the position of the Width of the blooming that embodiment 4 is shown and the relation of light quantity grade.

Figure 11 A, Figure 11 B are the figure of the position of the Width of the blooming that embodiment 5 is shown and the relation of light quantity grade.

Figure 12 A, Figure 12 B are the figure of the position of the Width of the blooming that embodiment 6 is shown and the relation of light quantity grade.

Figure 13 A, Figure 13 B are the figure of the position of the Width of the blooming that embodiment 7 is shown and the relation of light quantity grade.

Fig. 8 A) ~ Figure 13 A is the figure implementing single pass (acquisitions of data) every 999.9 microseconds and the light quantity data of a minute, namely 1000 times/second × 60 seconds=60000 times light quantity data are drawn on continuously same chart (repeating to write).

Fig. 8 B) ~ Figure 13 B illustrates the figure of data not repeating the single pass write.

Fig. 8 B) chart shown in ~ Figure 13 B is equivalent to the bold portion shown in Fig. 8 A ~ Figure 13 A.

It should be noted that, in Fig. 8 A and Fig. 9 A, conveniently, the position of Width of the blooming in embodiment 1 (electric discharge exports 800W) and the relation of light quantity grade are illustrated in the lump.

In Fig. 8 A, Fig. 8 B ~ Figure 13 A, Figure 13 B, in the same manner as Fig. 4 A, Fig. 4 B, do not use raw data, use and rationalize data.

In Fig. 8 A, Fig. 8 B ~ Figure 13 A, Figure 13 B, transverse axis represents the position of the Width of blooming, and the longitudinal axis represents light quantity grade.It should be noted that, transverse axis is corresponding with the visual field width (760mm) of CCD camera, if represent with pixel, is then equivalent to 4096pixel.The longitudinal axis with the lower limit of light quantity grade be 0, higher limit be 255 mode illustrate.In the various figures, the scope of transverse axis and the longitudinal axis is consistent.

As shown in Fig. 8 A, Fig. 8 B ~ Figure 13 A, Figure 13 B, the mean value of light quantity grade increases along with electric discharge exports and increases.In addition, the mobility scale of light quantity grade is expanded in banded in the whole region of the Width of blooming.

But according to the difference of the position of the Width of blooming, the mobility scale of light quantity grade is different.Such as, the position of the scope of the pixel 0pixel on the Width of blooming ~ 600pixel, light quantity grade is higher than the light quantity grade of the position of the scope of pixel 600pixel ~ 4096pixel.

Think that its reason is, the scope of pixel 0pixel ~ 600pixel is equivalent to roller exposed area, and the scope of pixel 600pixel ~ 4096pixel is equivalent to film conveyor zones, and therefore the difference of the flash-over characteristic of roller exposed area and film conveyor zones has an impact.In other words, think that reason is, in film conveyor zones, owing to there is the blooming as insulator, therefore corona discharge dies down, and discharge current density reduces.

Table 1 is the table of the position of the Width of the blooming having arranged embodiment 1 ~ 7 and the relation of light quantity grade.

In Table 1, " mean value of light quantity grade " be with electric discharge during embodiment 1 usual export for during benchmark, the mean value that is about to the light quantity grade that electric discharge exports when being set as 800W be set to 127 of the roughly half of 256 GTGs time, the electric discharge that is set to embodiment 2 ~ 7 respectively exports when the mean value of light quantity grade.

" (mobility scale) " is the mobility scale of the light quantity grade on the whole region of Width of blooming.It should be noted that, the lower limit of the mobility scale of embodiment 2 and embodiment 3 fails to calculate, and therefore records.

" with the difference of mobility scale " is the difference (difference of a less side) of the mean value of respective light quantity grade of embodiment 2 ~ 7 and the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1.Specifically, in embodiment 2 ~ 7, record the difference of the arbitrary less side in the difference of the higher limit (156) of the mobility scale of the difference of lower limit (97) of the mobility scale of the mean value of light quantity grade and the light quantity grade of embodiment 1 and the light quantity grade of the mean value of light quantity grade and embodiment 1 respectively.It should be noted that, if " with the difference of mobility scale " is more than 10, be then judged as that exporting setting value relative to the electric discharge of embodiment 1 has significant difference.

" testing result " illustrates whether the mobility scale of light quantity grade is included in the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1 among embodiment 2 ~ 7 is respective.Among embodiment 2 ~ 7 is respective, the situation mobility scale of light quantity grade not being contained in the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1 represents with " zero (good) ".The situation that the part of the mobility scale of light quantity grade is contained in the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1 represents with " △ (fair) ".

[table 1]

As shown in table 1, in embodiment 3, a part due to the mobility scale of light quantity grade is contained in the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1, therefore, is slightly not enough to illustrate that its electric discharge relative to embodiment 1 exports setting value and has significant difference.But, by the setting threshold value up and down in light quantity grade, light quantity grade being included in is judged as normally by the situation of the scope of upper and lower prescribed threshold, light quantity grade is not included in and is judged as exception by the situation in the scope of upper and lower prescribed threshold, the exception of non-corona discharge can be detected thus, determine whether uniformly to have carried out corona treatment to blooming.

On the other hand, in embodiment 2, embodiment 4 ~ 7, mobility scale due to light quantity grade is not contained in the mobility scale (97 ~ 156) of the light quantity grade of embodiment 1, therefore can be considered as exporting setting value relative to the electric discharge of embodiment 1 and have significant difference.There is the exception of non-corona discharge therefore, it is possible to stably detect, can be confirmed whether accurately uniformly to have carried out corona treatment to blooming.

In addition, according to the result of embodiment 4 ~ 7, export in the scope for 230W ~ 600W in electric discharge, even if electric discharge exports the change that about 100W occurs, export setting value relative to the electric discharge of other embodiments and also obtain enough significant differences.

Description of reference numerals

1... the manufacturing installation of blooming; 3... corona treatment plant; 4... testing fixture; 40...CCD camera; 40a... first camera (CCD camera); 40b... second camera (CCD camera); 100... applying system; 106... shearing device; 107... retracting device; 108... laminating apparatus; 110... judgment means; P... liquid crystal panel (laminating object); Fa... untreated film (blooming); Fb... film forming (blooming) is processed

Claims (3)

1. a manufacturing installation for blooming, comprising:

Conveying device, its feeding optical film;

Corona treatment plant, it is configured on the transport path of described blooming, and the Width of the described blooming orthogonal with the throughput direction of described blooming produces corona discharge, implements corona treatment thus to the surface of described blooming; And

Testing fixture, the light quantity of its light produced by described corona discharge throughout the whole Width inspection of described blooming.

2. the manufacturing installation of blooming according to claim 1, wherein,

Described testing fixture comprises CCD camera, and this CCD camera is carried out photosensitive to the light produced by described corona discharge.

3. an applying system, comprising:

The manufacturing installation of the blooming described in claim 1 or 2;

Judgment means, it judges whether the light quantity of the light produced by described corona discharge is comprised within the limits prescribed;

Shearing device, it will be judged as that by described judgment means the part be not included in the scope of described regulation cuts as defective part from the blooming utilizing the manufacturing installation of described blooming to produce, and forms the blooming that there is not described defective part;

Retracting device, it reclaims described defective part; And

Laminating apparatus, the blooming that there is not described defective part formed by described shearing device is fitted in laminating object by it.