CN100557428C - Polarizing film detection apparatus and method - Google Patents
Polarizing film detection apparatus and method Download PDFInfo
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- CN100557428C CN100557428C CNB2006100033636A CN200610003363A CN100557428C CN 100557428 C CN100557428 C CN 100557428C CN B2006100033636 A CNB2006100033636 A CN B2006100033636A CN 200610003363 A CN200610003363 A CN 200610003363A CN 100557428 C CN100557428 C CN 100557428C
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/005—Testing of reflective surfaces, e.g. mirrors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/86—Investigating moving sheets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
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- Optics & Photonics (AREA)
- Computer Vision & Pattern Recognition (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The present invention relates to and self-verifying to be applicable to whether the polarization film of LCD has the polarizing film detection apparatus and the method for substandard products.Polarizing film detection apparatus of the present invention comprises: loading part (10), the arrangement machine (12) that it comprises the film lifter (11) that makes polarization film (2) lifting and has a plurality of arrangement parts (12a) that are provided with at interval for four limits of arranging polarization film (2) and polarization film (2); Inspection portion (20) is arranged on a side of loading part (10) and is respectively equipped with line scanning and field scan video camera (21,22); Carrier is transferred device (4), and it will keep the carrier (3) of polarization film (2) to be transplanted on inspection portion (20) from loading part (10) by clip (3a); Unloading portion (30), the polarization film (2) that finishes is checked in output in above-mentioned inspection portion (20).
Description
Technical field
The present invention relates to polarizing film detection apparatus, particularly can self-verifying be applicable to whether the polarization film of LCD has the polarizing film detection apparatus and the method for substandard products.
Background technology
LCD (Liquid Crystal Display LCD) is owing to the birefringent characteristic that adopts liquid crystal, so use polarization film in order to regulate the direction of vibration that incides the light on the liquid crystal molecule.Polarization film has following function: make along the natural light of a plurality of direction vibrations and incident to become the polarized light that only vibrates along a direction, its kind has polarization films such as iodine class, dye class, phase differential, half transmitting and reflection-type.Wherein iodine class polarization film is used in iodine in transparent PVA (the PolyVinyl Alcohol polyvinyl alcohol (PVA)) film as the high meticulous LCD polarization film with high transmission and high polarized light property, thereby can absorb the light of visible region.
The structure of polarization film is roughly stacked gradually by TAC (Tri-Acetyl-Cellulose triacetyl cellulose) film, cementing agent, polarization element, cementing agent and TAC film and forms.For manufacturing has the polarization film of said structure, owing to need to use roller (roller) etc., thereby in the manufacture process of polarization film, the friction force of roller may produce trickle scratch (scratch).In addition, in the manufacture process of polarization film, trickle distortion on the PVA rete or damage etc. may produce light leak (Network ニ Star Network).In this polarization film, produce under the situation of light leak or scratch etc., the fatal defective of spot may take place to produce in the picture when the LCD picture is driven.
In the prior art, in order to check whether the polarization film that may produce critical defect in the LCD picture has defective and with its elimination, the operator confirms in the mode of eyes Direct observation and checks.That is to say that the operator confirms being used in 32 inches to the 46 inches polarization films among the big picture LCD in the mode that eyes are observed, thereby whether check in the polarization film and produce substandard products because of light leak, scratch, bubble or foreign matter.
Yet, in the prior art, check directly the operator under the situation of polarization film that according to operator's skill level, the precision of inspection and throughput rate may reduce.For example, under the low situation of operator's skill level, may check the careless omission of operation, even the skilled person is because operator's degree of fatigue also might make the throughput rate of checking operation reduce in addition.
Summary of the invention
Therefore, whether in order to address the above problem, the invention provides a kind of polarization film of can checking has the polarizing film detection apparatus and the method for substandard products.
Other purpose of the present invention is, can use polarizing film detection apparatus and method whether polarization film is had the inspection of substandard products, with the throughput rate of the inspection operation that improves polarization film.
To achieve these goals, polarizing film detection apparatus of the present invention comprises: loading part, the arrangement machine that it comprises the film lifter that makes the polarization film lifting and has a plurality of arrangement parts that are provided with at interval for four limits of arranging polarization film and polarization film; Inspection portion is arranged on a side of loading part, is respectively equipped with line-scan camera and field scan video camera; Carrier is transferred device, and it will be transplanted on inspection portion from loading part by the carrier that clip keeps polarization film also can carry out tension adjustment; Unloading portion, the polarization film that finishes is checked in output in above-mentioned inspection portion.Wherein, the film lifter comprises: the evacuated panel that is formed with a plurality of pores; And be arranged on a side of evacuated panel and make the upper and lower mobile Lift Part of evacuated panel.The line-scan camera of inspection portion comprises: at least one first camera is vertically set on polarization film top; First lighting device is relative with first camera and be provided with in the polarization film bottom; The second and the 3rd lighting device, on polarization film/downside according to isolate predetermined interval simultaneously the mode of predetermined oblique angle be provided with; And at least one the second and the 3rd camera, on polarization film/downside according to isolating predetermined interval toward each other and according to predetermined angle setting, in order to taking by the image of the second and the 3rd lighting device reflection.The field scan video camera comprises: at least one the 4th camera is arranged on the upside of polarization film and polarization film is carried out step-scan; The 4th lighting device is relative with the 4th camera and be provided with at the downside of polarization film; Check polarization film, be arranged on the top of the 4th lighting device; And the field scan rotary part, make described inspection polarization film with predetermined angle rotation.
Polarized light film checking method of the present invention comprises: the arrangement machine by loading part is arranged polarization film, then the flatness of polarization film is carried out jet adjustment and above-mentioned polarization film is placed on step on the evacuated panel; After having placed polarization film, by carrier polarization film is clamped, then the step that the tension force of polarization film is adjusted; After polarization film has been adjusted tension force by carrier, the evacuated panel of placing polarization film is dropped to the step of transmitting place; After carrier is transplanted on transmitting place, transfer the step that device is transplanted on carrier inspection portion by carrier; After carrier is transplanted on inspection portion, polarization film is carried out the step that line scanning/field scan is checked; After polarization film line scanning/field scan inspection finishes, the step of output polarization light film.
Description of drawings
Fig. 1 is the vertical view according to polarizing film detection apparatus of the present invention;
Fig. 2 is the front view of polarizing film detection apparatus shown in Figure 1;
Fig. 3 is the enlarged front view of inspection portion shown in Figure 2;
Fig. 4 is the front view of loading part shown in Figure 1;
Fig. 5 a and Fig. 5 b are the process flow diagrams according to polarized light film checking method of the present invention.
Symbol description
1 body, 2 polarization films, 3 carriers, 4 carriers are transferred device, 10 loading parts, 11 film lifters, 12 arrangement machines, 20 inspection portions, 21 line-scan cameras, device is transferred in the 21a line scanning, 22 field scan video cameras, the 22a carrier is transferred device, 30 unloading portions, device is transferred in 31 unloadings
Embodiment
Below, with reference to accompanying drawing embodiments of the invention are described.
Fig. 1 is the vertical view of the polarizing film detection apparatus according to the present invention, and Fig. 2 is the front view of polarizing film detection apparatus shown in Figure 1.As shown in the figure, polarizing film detection apparatus of the present invention comprises: loading part 10, and the side that it is arranged on body 1 wherein is provided with the arrangement machine 12 that is used to arrange polarization film; With inspection portion 20, the side that it is arranged on loading part 10 wherein is respectively equipped with line scanning and field scan video camera 21,22 that polarization film 2 is checked.
In addition, in testing fixture of the present invention, on body 1, be provided with and be used for to keep the carrier 3 of polarization film 2 to transfer device 4, transfer between the device 4 at arrangement machine 12 and carrier and be provided with film lifter 11 from the carrier that loading part 10 is transplanted on inspection portion 20.
Next will the structure and the effect of polarizing film detection apparatus of the present invention be elaborated.
Polarizing film detection apparatus of the present invention is provided with loading part 10 in a side of body 1, side at loading part 10 is provided with the inspection portion 20 that polarization film 2 is checked, and the side at body 1 is provided with carrier handover device 4, in order to keeping the carrier 3 of polarization film 2 to be transplanted on inspection portion 20 from loading part 10 between loading part 10 and inspection portion 20.
As shown in Figure 1, carrier is transferred the length direction setting of device 4 along body 1, if remain on the carrier 3 at loading part 10 polarization films 2, then it is transplanted on separately successively the line-scan camera 21 and the field scan video camera 22 of inspection portion 20.
If carrier is transferred device 4 and transferred the carrier 3 that keeps polarization films 2, the line-scan camera 21 of then above-mentioned inspection portion 20 carries out the transmission inspection by the first camera 21b and the first lighting device 21c to polarization film 2.As Fig. 2 and shown in Figure 3, the first camera 21b that polarization film 2 is carried out the transmission inspection with remain on polarization film 2 on the carrier 3 be benchmark thereon side be provided with one at least; The first lighting device 21c is that benchmark is arranged on its downside according to the mode relative with the first camera 21b with polarization film 2, and shown in Fig. 1 is the embodiment that is provided with three first camera 21b.
The transmission inspection of the polarization film 2 that is undertaken by the first camera 21b and the first lighting device 21c, the light that is sent by the first lighting device 21c that is arranged on polarization film 2 downsides carries out transmission to polarization film 2, thus, thereby the first camera 21b photographic images is checked the bigger foreign matter in inboard of polarization film 2, for this reason, transfer device 4 by carrier and transfer carrier 3 linearly.At this, the first lighting device 21c is suitable for strip lighting device.
If the transmission inspection of the polarization film 2 that is undertaken by the first camera 21b and the first lighting device 21c finishes, then by the second and the 3rd lighting device 21e, 21g, the second and the 3rd camera 21d, 21f on the polarization film 2/lower surface carries out reflex respectively, thereby checks on the polarization film 2 whether comprise foreign matter or bubble.At this, the second and the 3rd lighting device 21e, 21g are suitable for strip lighting device.
For on the polarization film 2/lower surface carries out reflex, the second and the 3rd lighting device 21e, 21g according to isolate predetermined interval m and respectively the mode of predetermined oblique angle k be arranged on the polarization film 2 that remains on the carrier 3 on/downside.At this, the predetermined angular k of inclination is 30 ° to 60 °, and the angle of inclination that is preferably with 45 ° is provided with the second and the 3rd lighting device 21e, 21g respectively.
The second and the 3rd camera 21d, 21f respectively with predetermined interval n on polarization film 2/downside is provided with at least one, so that take image by the second and the 3rd lighting device 21e, the 21g reflection that is provided with according to predetermined angle incline, take the image of the polarization film 2 that reflects by the light that sends from the second and the 3rd lighting device 21e, 21g respectively thus, thereby whether exist foreign matter or bubble to carry out scanning shoot polarization film 2.For this reason, keep the carrier 3 of polarization film 2 to transfer linearly, and the second and the 3rd lighting device 21e, 21g are suitable for strip lighting device respectively by carrier handover device 4.
If, then transfer device 4 and will keep the carrier 3 of polarization film 2 to be transplanted on field scan video camera 22 by carrier by the reflex that the second and the 3rd camera 21d, 21f finish polarization film 2.Field scan video camera 22 is made of the 4th camera 22b, the 4th lighting device 22c, inspection polarization film 22d and field scan rotary part 22e, in order to check polarization film 2 contingent light leaks.At this, the 4th lighting device 22c is suitable for the LCD backlighting arrangement.
The 4th camera 22b of field scan video camera 22 is a benchmark side disposed thereon to remain on the polarization film of being transferred on the carrier 3 that device 4 transfers by carrier 2, and on the smear camera on the scene 22 at least one is set, in order to polarization film 2 step-scans; The 4th lighting device 22c is arranged on the downside of polarization film 2 according to the mode relative with the 4th camera 22b.In addition, be provided with field scan rotary part 22e in the bottom of the 4th lighting device 22c, so that check that polarization film 22d is with predetermined angle rotation.At this, field scan rotary part 22e is provided with according to the mode that is driven its rotation by turning motor 22f, in order to distinguish mutually with the polarization film 2 of conduct inspection object, uses the title of so-called inspection polarization film 22d.
22 pairs of polarization films 2 that kept by the carrier 3 of carrier handover device 22a step delivering of field scan video camera with said structure carry out the light leak inspection.For this reason, the 4th lighting device 22c is set, is provided with on the top of the 4th lighting device 22c and checks polarization film 22d at the downside of the 4th camera 22b.Be provided with and check that polarization film 22d is used for the cross-check of polarization film 2, and check the predetermined angle of polarization film 22d rotation according to making, the mode of promptly rotating 360 ° at least is provided with field scan rotary part 22e.
Check when polarization film 22d and shaft angle as the polarization film 2 of checking object depart from, use field scan rotary part 22e that it is carried out revisal, downside at this field scan rotary part 22e is provided with turning motor 22f, and 22f makes its rotation by this turning motor.
In order to take and to check the pollution source that comprise in the polarization film 2, be used for that polarization film 2 on the carrier 3 is transplanted on the line-scan camera 21 of inspection portion 20 respectively and a plurality of backing rolls 23 of field scan video camera 22 are arranged on body 1 with remaining on by said process.A plurality of backing rolls 23 are located at inspection portion 20 respectively, remain on polarization film 2 on the carrier 3 in order to support.
In order to scan at 20 pairs of polarization films 2 that supported and transferred by backing roll 23 of inspection portion and to judge whether substandard products are arranged, the flatness of polarization film 2 will be important factor.Especially when being applicable to that 32 inches polarization films 2 to 46 inches big picture LCD remain on the carrier 3, the flatness of polarization film 2 must correctly be kept.
For this reason, be respectively equipped with film lifter 11 and arrangement machine 12 on the loading part 10.As Fig. 1 and shown in Figure 4, arrangement machine 12 is respectively equipped with a plurality of arrangement part 12a along four limits of polarization film 2, and each arrangement part 12a is made of ball-screw isoline transfer mechanism (not shown) or LM guides (Linear Motion Guide linear motion guidance device).
Arrangement machine 12 is provided with film lifter 11 for supporting polarization film 2 in the central authorities of loading part 10 when polarization film 2 is arranged.As Fig. 1 and shown in Figure 4, film lifter 11 is made of evacuated panel 11c and Lift Part 11b.
Evacuated panel 11c is formed with a plurality of pore 11a that air can be provided, and Lift Part 11b is arranged on the precalculated position of evacuated panel 11c, transfers device 4 in order to respectively evacuated panel 11c is transplanted on arrangement machine 12, carrier 3 and carrier.
As shown in Figure 4, the operator is under the situation of placing polarization film 2 on the arrangement machine 12 of loading part 10, and for it is kept, the film lifter 11 with said structure makes evacuated panel 11c rise to the height A that arrangement machine 12 is provided with.If evacuated panel 11c rises by Lift Part 11b, after then the operator is placed on polarization film 2 on the evacuated panel 11c, just can arrange by arrangement machine 12.
When 12 pairs of polarization films 2 of arrangement machine are arranged, one side, arrange remaining limit then earlier with being aligned on the arrangement part 12a of polarization film 2.If polarization film 2 is arranged machine 12 and arranges, then go up a plurality of pore 11a that form air is provided partially or entirely, thereby the flatness of polarization film 2 is carried out trickle adjustment by evacuated panel 11c.This operation can use the control device (not shown) of polarizing film detection apparatus and solenoid valve (not shown) automatically air to be offered a plurality of pore 11a.
If the air that a plurality of pore 11a that upward form by evacuated panel 11c provide is adjusted the flatness of polarization film 2, then under this state, polarization film 2 drops to the height B of carrier 3 present positions by the Lift Part 11b along the vertical direction rising/decline shown in the arrow " c ".If the height B of carrier 3 present positions is transferred and dropped to polarization film 2 along arrow " a " direction, then the clip 3a of carrier 3 clamps polarization film 2.
If the clip 3a of carrier 3 all clamps four limits of polarization film 2, then on carrier 3, make clip 3a move and the tension force of polarization film 2 is operated.By this operation, polarization film 2 flatly remains on the carrier 3 with the state of keeping tension force to a certain degree.If polarization film 2 remains on the carrier 3, then transfer evacuated panel 11c and make the carrier 3 that keeps polarization film 2 drop to carrier along arrow " b " direction once more and transfer the height c that device 4 is provided with.
Transfer the position that device 4 is provided with if carrier 3 drops to carrier, then carrier 3 is transferred device 4 by carrier and is transplanted on inspection portion 20, thereby just can whether substandard products inspection be arranged to the polarization film 2 that keeps on the carrier 3.
If the inspection under the above-mentioned state that remains on the carrier 3 finishes, then under the situation that polarizing film detection apparatus is provided with in-line arrangement, can transfer device 4 by carrier and output to Fig. 1 and unloading portion 30 shown in Figure 2; Under the situation of non-in-line arrangement, can transfer and output according to the opposite order of the process of transferring with the polarization film 2 that remains on for inspection on the carrier 3.So transfer the carrier of carrier 3 and transfer device 4 suitable linear servomotor (linear servo motor) isoline transfer mechanisms.
Next use accompanying drawing 1, Fig. 4, Fig. 5 a and Fig. 5 b, check that to using above-mentioned polarizing film detection apparatus the method for polarization film 2 describes.
For foreign matter, bubble or the light leak of checking that polarization film 2 comprises, at first implementation step S10: the 12 pairs of polarization films 2 of arrangement machine by loading part 10 are arranged, and place it in then on the evacuated panel 11c.
For polarization film 2 is placed on the evacuated panel 11c, implementation step S11 at first: polarization film 2 is put on the loading part 10 by the operator.At this, the operator puts into the height that arrangement machine shown in Figure 4 12 is provided with polarization film 2.If drop on the loading part 10 polarization film 2, then implementation step S12 arranged: arrange polarization film 2 by arrangement machine 12.If polarization film 2 is arranged, implementation step S13 then: the polarization film of arranging 2 is adsorbed by evacuated panel 11c.
If polarization film 2 is adsorbed on the evacuated panel 11c, then remove adsorbed state, then implementation step S14: polarization film 2 is placed on evacuated panel 11c.If polarization film 2 is placed on the evacuated panel 11c, then implementation step S15: from the flatness of evacuated panel 11c ejection air with adjustment polarization film 2.In step S15, go up the pore 11a ejection air that forms by evacuated panel 11c, the flatness of polarization film 2 is adjusted.
Be placed on the evacuated panel 11c if adjusted the flatness and the polarization film 2 of polarization film 2, then implementation step S20: clamp polarization film 2 by carrier 3, adjust the tension force of polarization film 2 then.
In order to adjust the tension force of polarization film 2, if at first polarization film 2 is placed on the evacuated panel 11c, then implement first and clamp step S21: make evacuated panel 11c drop to clamping/tension adjustment position, the height B of carrier 3 residing positions promptly shown in Figure 4 and carrier 3 clamp polarization film 2.Finish if first clamps step S21, then implement the first tension force step S22: the tension force that is clipped in the polarization film 2 on the carrier 3 is adjusted.If the first tension force step finishes, then implement second and clamp step S23: once more polarization film 2 is clamped again by carrier 3, finish if second clamps step, then implement the second tension force step S24: once more the tension force of polarization film 2 is adjusted again by carrier 3.
If polarization film 2 has been adjusted tension force by carrier 3, implementation step S30 then: the evacuated panel 11c that will be placed with polarization film 2 drops to transmitting place.
For the carrier 3 that will maintain polarization film 2 is transferred to transmitting place, be that carrier shown in Figure 4 is transferred the height C that device 4 is provided with, implementation step S31 at first:, evacuated panel 11c is descended so that carrier 3 is transferred to transmitting place if polarization film 2 has been adjusted tension force by carrier 3.If evacuated panel 11c descends and carrier 3 is transferred to transmitting place, then implement the 3rd tension force step S32: the tension force by 3 pairs of polarization films 2 of carrier is adjusted again, at last tension force is maintained the controlled state of flatness by carrier 3 polarization films 2.
Keep at polarization film 2 under the state of flatness, if carrier 3 is transferred to transmitting place, implementation step S40 then: transfer device 4 by carrier carrier 3 is transferred to inspection portion 20.If carrier 3 is transferred to inspection portion 20, implementation step S50 then: polarization film 2 is carried out line scanning/field scan inspection, whether polarization film 2 is had substandard products inspection; If being carried out line scanning/field scan inspection, finishes polarization film 2, then implementation step S60: transfer device 4 output polarization light films 2 by carrier, thereby finish the inspection operation of polarization film 2.
So, the polarization film that is applicable to big picture LCD is checked, can under the state of the flatness of keeping polarization film, be judged correctly whether polarization film has substandard products by using polarizing film detection apparatus and the method formed by loading part and inspection portion.
By above explanation as can be known, whether the application of the invention polarizing film detection apparatus has substandard products inspection to polarization film, can more critically check, can improve the throughput rate of polarized light film checking operation simultaneously.
Claims (6)
1. a polarizing film detection apparatus is characterized in that, described device comprises:
Loading part, it comprises: make the film lifter of polarization film lifting, and the arrangement machine with a plurality of arrangement parts that are provided with at interval for four limits of arranging polarization film and polarization film, wherein said film lifter comprises: the evacuated panel that is formed with a plurality of pores; And be arranged on a side of described evacuated panel and make the upper and lower mobile Lift Part of evacuated panel;
Inspection portion, it is arranged on a side of described loading part, and is respectively equipped with line-scan camera and field scan video camera;
Carrier is transferred device, and it is transplanted on inspection portion with carrier from loading part, and described carrier keeps polarization film and can carry out tension adjustment by clip;
Unloading portion, output is checked the polarization film that finishes in described inspection portion,
Wherein, the line-scan camera of described inspection portion comprises:
At least one first camera is vertically set on polarization film top;
First lighting device is relative with described first camera and be provided with in the polarization film bottom;
The second and the 3rd lighting device, on polarization film/downside according to isolate predetermined interval simultaneously the mode of predetermined oblique angle be provided with;
At least one the second and the 3rd camera, on polarization film/downside according to isolating predetermined interval toward each other and according to predetermined angle setting, in order to taking by the image of the described second and the 3rd lighting device reflection,
Described field scan video camera comprises:
At least one the 4th camera is arranged on the upside of polarization film and polarization film is carried out step-scan;
The 4th lighting device is relative with described the 4th camera and be provided with at the downside of described polarization film;
Check polarization film, be arranged on the top of described the 4th lighting device;
The field scan rotary part makes described inspection polarization film with predetermined angle rotation.
2. polarizing film detection apparatus according to claim 1 is characterized in that, described first to the 3rd lighting device is a list structure.
3. polarizing film detection apparatus according to claim 1 is characterized in that, described the 4th lighting device is that LCD is backlight.
4. method of using polarizing film detection apparatus as claimed in claim 1 to carry out polarized light film checking comprises:
Arrangement machine by loading part is arranged polarization film, then the flatness of polarization film is carried out jet adjustment and described polarization film is placed on step on the evacuated panel;
After described polarization film is placed, clamp polarization film, the step that the tension force of polarization film is adjusted then by carrier;
After described polarization film has been adjusted tension force by carrier, make the evacuated panel of placing polarization film drop to the step of transmitting place;
After described evacuated panel is transferred to transmitting place, transfer the step that device is transferred to carrier inspection portion by carrier;
After described carrier is transferred to inspection portion, polarization film is carried out the step that line scanning/field scan is checked;
After described polarization film line scanning/field scan inspection finishes, the step of output polarization light film.
5. method according to claim 4 is characterized in that, after described polarization film is placed, clamps polarization film by carrier, and the step that the tension force of polarization film is adjusted comprises then:
First clamps step, after described polarization film is placed on the evacuated panel, makes evacuated panel drop to clamping/tension adjustment position, and carrier clamps polarization film;
The first tension adjustment step after the described first clamping step finishes, is adjusted the tension force that is clipped in the polarization film on the carrier;
Second clamps step, after the described first tension adjustment step finishes, once more polarization film is clamped again by carrier;
The second tension adjustment step after the described second clamping step finishes, is adjusted the tension force of polarization film once more by carrier again.
6. method according to claim 4 is characterized in that, after described polarization film had been adjusted tension force by carrier, the step that makes the evacuated panel of placing polarization film drop to transmitting place comprised:
After described polarization film has been adjusted tension force by carrier, evacuated panel is descended carrier is transferred to the step of transmitting place;
The 3rd tension adjustment step: descend and after described carrier is transferred to transmitting place, the tension force of described polarization film is adjusted again by described carrier at described evacuated panel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050027002A KR100789659B1 (en) | 2005-03-31 | 2005-03-31 | Apparatus and Method for Inspecting Polarizing Film |
| KR1020050027002 | 2005-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1841052A CN1841052A (en) | 2006-10-04 |
| CN100557428C true CN100557428C (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100033636A Expired - Fee Related CN100557428C (en) | 2005-03-31 | 2006-01-26 | Polarizing film detection apparatus and method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4226608B2 (en) |
| KR (1) | KR100789659B1 (en) |
| CN (1) | CN100557428C (en) |
| TW (1) | TWI275836B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100853247B1 (en) * | 2006-12-08 | 2008-08-21 | 주식회사 에스에프에이 | Apparatus and Method for Manufacturing Polarizing Film |
| KR100903585B1 (en) * | 2007-07-13 | 2009-06-23 | 충북대학교 산학협력단 | Vacuum Chuck for Inspecting Apparatus of Polarizing Film |
| KR100804033B1 (en) * | 2007-10-04 | 2008-02-18 | 주식회사 쓰리비 시스템 | Apparatus for inspecting optical film |
| KR100922616B1 (en) | 2007-10-24 | 2009-10-21 | 주식회사 아바코 | Film inspection system |
| KR100920221B1 (en) * | 2007-11-28 | 2009-10-05 | 주식회사 아바코 | Film inspection system |
| KR101052883B1 (en) * | 2009-02-10 | 2011-07-29 | 엘아이지에이디피 주식회사 | Polarizer Transfer Device and Polarizer Transfer Method |
| KR101042885B1 (en) * | 2011-03-04 | 2011-06-20 | 오승훈 | Pre-align apparutus for inspecting of sheet film |
| KR102025704B1 (en) * | 2012-09-14 | 2019-09-27 | 삼성디스플레이 주식회사 | Apparatus for inspecting film |
| KR101452214B1 (en) * | 2012-12-11 | 2014-10-22 | 주식회사 에스에프에이 | Apparatus for inspecting panel |
| CN104748856A (en) * | 2013-12-31 | 2015-07-01 | 致茂电子股份有限公司 | Optical detection device |
| CN106353332B (en) * | 2015-07-15 | 2019-05-28 | 明眼有限公司 | Utilize the polarisation film detection apparatus of pattern light-transmitting plate |
| KR101677016B1 (en) * | 2015-07-17 | 2016-11-18 | 디아이티 주식회사 | Apparatus for Inspecting together with the Surface of Glass and Film |
| KR20180016757A (en) * | 2016-08-08 | 2018-02-20 | 동우 화인켐 주식회사 | Method and device for inspecting depect of optical film |
| KR20190036007A (en) | 2017-09-26 | 2019-04-04 | 삼성전자주식회사 | Grip apparatus and substrate inspecting system including the same |
| CN108088857A (en) * | 2017-11-27 | 2018-05-29 | 江西合力泰科技有限公司 | A kind of detection method of light-transmissive film |
| KR101996346B1 (en) * | 2018-11-22 | 2019-07-03 | (주)제이티에스 | Visual inspection equipment of seperator with intergated slitter and Inspection system using the same |
| JP2023031371A (en) * | 2021-08-25 | 2023-03-09 | 日東電工株式会社 | Inspection method and inspection device for light permeable laminate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2677981B2 (en) * | 1996-01-26 | 1997-11-17 | 株式会社日立製作所 | Exposure equipment |
| JPH09329774A (en) * | 1996-06-11 | 1997-12-22 | Hitachi Ltd | Appearance inspecting device for liquid crystal display substrate |
| JP3977503B2 (en) | 1998-02-05 | 2007-09-19 | 住友化学株式会社 | Film inspection method and film inspection apparatus using the same |
| KR100799208B1 (en) * | 2002-02-26 | 2008-01-29 | 삼성테크윈 주식회사 | Method and apparatus for inspecting and sorting semiconductor package |
| KR100420244B1 (en) * | 2002-05-11 | 2004-03-02 | 주식회사 이오테크닉스 | The film marker system and its control method |
| KR100625689B1 (en) * | 2003-12-12 | 2006-09-20 | 에버테크노 주식회사 | Apparatus for Inspecting Polarized Film |
-
2005
- 2005-03-31 KR KR1020050027002A patent/KR100789659B1/en not_active IP Right Cessation
-
2006
- 2006-01-05 TW TW095100493A patent/TWI275836B/en not_active IP Right Cessation
- 2006-01-26 CN CNB2006100033636A patent/CN100557428C/en not_active Expired - Fee Related
- 2006-02-23 JP JP2006046341A patent/JP4226608B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP4226608B2 (en) | 2009-02-18 |
| KR100789659B1 (en) | 2007-12-31 |
| CN1841052A (en) | 2006-10-04 |
| KR20060104666A (en) | 2006-10-09 |
| TW200634357A (en) | 2006-10-01 |
| TWI275836B (en) | 2007-03-11 |
| JP2006284559A (en) | 2006-10-19 |
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