CN102156318A - Manufacturing method for promoting absorption axis precision of polarizing plate and polarizing plate - Google Patents
Manufacturing method for promoting absorption axis precision of polarizing plate and polarizing plate Download PDFInfo
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- CN102156318A CN102156318A CN 201110074241 CN201110074241A CN102156318A CN 102156318 A CN102156318 A CN 102156318A CN 201110074241 CN201110074241 CN 201110074241 CN 201110074241 A CN201110074241 A CN 201110074241A CN 102156318 A CN102156318 A CN 102156318A
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Abstract
The invention relates to a manufacturing method for promoting absorption axis precision of a polarizing plate and the polarizing plate. In order to solve the technical problems, the invention provides the manufacturing method, which comprises the following steps of: A, manufacturing a three-layer continuous coiled material of the polarizing plate; B, measuring an absorption axis of at least one monitored position of the width direction of the three-layer continuous coiled material at a predetermined interval in the length direction along the length direction of the three-layer continuous coiled material; C, marking signs for representing the information of the absorption axis and the position information of the monitored position on the edge in the width direction of the three-layer continuous coiled material; D, sticking a protective film and a release film on the three-layer continuous coiled material marked with the signs to form a five-layer continuous coiled material; E, reading the signs; F, controlling the angle and the position of a cutting device according to the signs; and G, cutting the five-layer continuous coiled material into preset size.
Description
[technical field]
The invention relates to a kind of manufacture method of Polarizer, and particularly relevant for a kind of manufacture method that promotes the absorption axes precision of Polarizer.
[background technology]
Polarizer is an imaging part important in the LCD screen, its absorption axes accurately whether, imaging effect that can the influence surface slab integral.
At present, the making of Polarizer, at first lamination comprises three layers of continuous coiled strip of TAC/PVA/RETARDER at least, pastes diaphragm, fractal film in three layers of continuous coiled strip again, makes five layers of continuous coiled strip.Afterwards, according to order, cut out required size from five layers of continuous coiled strip.
So; now when five layers of continuous coiled strip cut out required size; usually the geometric center with required size is as the criterion; when seeing through practical application with the diaphragm, the fractal film that remove; and the absorption axes that carries out the only place in five layers of continuous coiled strip is measured; afterwards, the absorption axes according to being measured cuts out required number continuously.When so cutting, because of carry out the mensuration of absorption axes through diaphragm, fractal film, the information of measuring gained is protected the influence of film, fractal film, the accurate absorption axes of the Polarizer under the three laminated layer states when being difficult to obtain practical application.And, manufacture even consider in heterogeneity, but the absorption axes at each position of three layers of continuous coiled strip making still has change slightly.Seeing through the diaphragm, the fractal film that influence measurement result measures; and when only measuring the absorption axes at a place and cutting into the pre-sizing of plural pieces according to this; the absorption axes of each Polarizer that cuts out is different; even from the plural Polarizer that the continuous coiled strip of same mother metal cuts out, the imaging effect of each made panel also has good and the bad difference.
After previous diaphragm, the fractal film that five layers of continuous coiled strip will making were earlier once arranged removes; mensuration cuts the absorption axes at the geometric center place of size; control the angle of cutting means afterwards according to measurement result; the motion that cuts; but because of lacking the protection of diaphragm and fractal film; the damage Polarizer makes and produces the yield variation easily.
Moreover; when before once pasting diaphragm, release film; edge exposure with three layers of continuous coiled strip cross direction; the measurement result of the absorption axes at three layers of continuous coiled strip cross direction edge of foundation is controlled the angle of cutting means; the motion that cuts; but deviation is slightly also arranged between the absorption axes at other position of the absorption axes at coiled strip cross direction edge and cross direction continuously, can't cut out Polarizer according to this with desirable absorption axes.
[summary of the invention]
The object of the present invention is to provide a kind of manufacture method that promotes the absorption axes precision of Polarizer, it comprises: steps A, three layers of continuous coiled strip of making Polarizer; Step B along these three layers continuous coiled strip length direction, measures the absorption axes of at least one monitoring place of these three layers of continuous coiled strip cross directions with the predetermined space on the length direction; Step C indicates the mark of the positional information of representing this absorption axes information and this monitoring place in these three layers of continuous coiled strip edges of this cross direction; Step D pastes diaphragm, five layers of continuous coiled strip of fractal film formation on these three layers of continuous coiled strips that indicate mark; Step e reads this mark; Step F is according to the angle and the position of this mark control cutting means; And step G, cut these five layers of continuous coiled strips and become preliminary dimension.
As optional technical scheme, determine the positional information of this monitoring place according to this preliminary dimension.
As optional technical scheme, the manufacture method of the absorption axes precision of described lifting Polarizer comprises: repeat this step B and step C, indicate until these three layers continuous coiled strip and finish.
As optional technical scheme, the manufacture method of the absorption axes precision of described lifting Polarizer comprises: repeat this step e, step F and step G, cut until these five layers of continuous coiled strips and finish.
As optional technical scheme, this step B finishes by analyzer, and this step C finishes by indication device, and this analyzer is arranged at the upstream position of this indication device.
As optional technical scheme, this step e is finished by reading device, and this step F, G are finished by cutting means, and this reading device is arranged at the upstream position of this cutting means.
Another object of the present invention provides a kind of Polarizer, and this Polarizer forms via above-mentioned a kind of manufacture method manufacturing.
Compared with prior art, the present invention can cut out the Polarizer with desirable absorption axes.
[description of drawings]
Fig. 1 represents the process flow diagram of manufacture method of the absorption axes precision of lifting Polarizer of the present invention.
Fig. 2 represents to make the detail flowchart with the Polarizer of mark.
Fig. 3 represents to make the synoptic diagram with the Polarizer of mark.
Fig. 4 represents to cut the detail flowchart with the Polarizer of mark.
Fig. 5 represents to cut the synoptic diagram with the Polarizer of mark.
Fig. 6 represents to make based on the predetermined geometric center that cuts size the synoptic diagram of the Polarizer of having mark.
Fig. 7 represents to cut an enforcement kenel synoptic diagram of the Polarizer of making among Fig. 6.
Fig. 8 represents to measure absorption axes with the length direction of continuous coiled strip and the preset space length of cross direction respectively, and a plurality of absorption axes measured values on the same cross direction are recorded as a mark, makes the synoptic diagram with the Polarizer of mark.
Fig. 9 represents to cut an enforcement kenel synoptic diagram of the Polarizer of making among Fig. 8.
[embodiment]
Fig. 1 represents the process flow diagram of manufacture method of the absorption axes precision of lifting Polarizer of the present invention.The manufacture method of the absorption axes precision of lifting Polarizer of the present invention comprises the Polarizer step S100 that makes with mark at least; And cut Polarizer step S200 with mark.
Fig. 2 represents to make the detail flowchart with the Polarizer step S100 of mark, and Fig. 3 represents to make the synoptic diagram with the Polarizer of mark.Make with among the Polarizer step S100 of mark, at first, in step S110, make the continuous coiled strip of Polarizer of three laminated layer.This step can to predetermined direct of travel, be made the continuous coiled strip 903 of three laminated layer that comprise TAC/PVA/RETARDER according to prior art.
Then, in step S120,, measure the absorption axes of the continuous coiled strip of Polarizer with predetermined space along three layers of continuous coiled strip length direction.As shown in Figure 3, in this step, the precalculated position of three layers of continuous coiled strip 903 is made as starting point, measure the absorption axes at least one place (be central portion in the present embodiment) of three layers of continuous coiled strip 903 cross direction of these starting points with analyzer 100, absorption axes measurement result and the positional information of measuring part are sent to sign controller 700.The analyzer 100 of measuring absorption axes can adopt existing various analyzer.Comprise the cross direction means (not shown) that relatively move between analyzer 100 and the three layers of continuous coiled strip 903, use the relative position of the cross direction that changes analyzer 100 and three layers of continuous coiled strip 903, measure the positional information of part, the information (for example driving the pulse of step motor) in the time of can moving analyzer 100 by this mobile means and providing.
Then, in step S130, indicate the positional information of controller 700 according to measurement result and mensuration, same continuous coiled strip 903 cross direction edges in above-mentioned steps S120, indicate mark 210 with indication device 200, with the positional information of measurement result and mensuration, be recorded in continuous coiled strip 903 with mark 210.
Afterwards, relatively move three layers of continuous coiled strip 903 to direct of travel, last time measured the position of part predetermined space in distance, carry out the absorption axes of step S120 repeatedly, and step S130 indicates mark 210 with indication device 200 in the cross direction edge of continuous coiled strip 903 with at least one place of three layers of continuous coiled strip 903 cross direction of analyzer 100 mensuration.
Above-mentioned indication device 200 can be given an example as marking press equipment of the printing equipment of ink-jet, dot matrix etc., laser, diamond cutter etc. etc.Above-mentioned mark 210 can be the bar-code marks of two dimension, three-dimensional etc., also can be and can visually distinguish various literal, the symbol of reading.Because of the absorption axes of different position has slightly change, thus the information of each mark 210 representative also can thereby different.Above-mentioned predetermined space can be controlled by the travel distance of three layers of continuous coiled strip 903 of control.In addition, the number of times that carries out step S120 and step S130 repeatedly can freely be set according to actual needs.
Then, in step S140, finish the part that indicates mark in three layers of continuous coiled strip 903 and pasted diaphragm, fractal film (not shown among Fig. 3), made the continuous coiled strip of five laminated layer.So far finish each step made from the Polarizer S100 of mark.The width of diaphragm, fractal film must have the width that cuts size greater than predetermined at least.If the width of the diaphragm that pasted, fractal film is during more than or equal to the width of three layers of continuous sheet stock 903, diaphragm, fractal film must can make following reading device 300 read mark 210 through diaphragm, release film.
Fig. 4 represents to cut the detail flowchart with the Polarizer step S200 of mark, and Fig. 5 represents to cut the synoptic diagram with the Polarizer of mark.Cut in the step with the Polarizer S200 of mark, at first, in step S210, read mark 210, the information of mark 210 representatives is sent to cuts controller 800 with reading device 300.
As long as but the information of interpretation mark 210 representatives, reading device 300 can be the reading device that can read mark 210 arbitrarily, for example barcode reader, scanner, camera, video camera etc.If diaphragm, fractal film are not overlying under the situation of mark 210, reading device 300 can directly read mark 210.If diaphragm, fractal film are overlying under the situation of mark 210; when reading device 300 reads mark 210, also need not remove the diaphragm, fractal film of five layers of continuous sheet stock 905 and directly see through diaphragm, fractal film reads the mark 210 on three layers of continuous sheet stock 903 that are shown in actual use.In the step S130 that indicates mark 210; directly the absorption axes information of being measured is indicated with mark 210; and diaphragm, fractal film can make reading device 300 see through and read; even reading device 300 sees through diaphragm, fractal film reads mark 210, the relevant information that is read also can not change to some extent.
Then, in step S220, cut the absorption axes information and the positional information of mark 210 representatives that controller 800 reads according to reading device 300, the angle and the position of control cutting means.Comprise the cross direction means (not shown) that relatively move between cutting means 400 and the five layers of continuous coiled strip 905, use the relative position of the cross direction that changes cutting means 400 and five layers of continuous coiled strip 905.The angle of cutting means 400 and the scope of position can freely be set according to actual needs.
Then, in step S230, the Polarizer that cuts five layers of continuous coiled strip 905 with the cutting means 400 that is controlled to predetermined angular becomes and cuts size 910.
Afterwards, relatively move five layers of continuous coiled strip 905 to direct of travel, in cutting out the preposition that cuts size 910 once more, the angle and the cutting into of position and step S230 of carrying out the control cutting means 400 that reads mark 210, step S220 of step S210 repeatedly cut size 910.Can cut out the preposition that cuts size 910 once more can be controlled by the travel distance of five layers of continuous coiled strip 905 of control.
As shown in Figure 3, make among the step S100 with the Polarizer of mark, when measuring the step S120 of absorption axes of the continuous coiled strip of Polarizer with predetermined space, with short distance as predetermined space, the rower of going forward side by side shows the step S130 of mark, carries out step S120 and step S130 afterwards repeatedly.When so carrying out step S100, the edge of three layers of continuous coiled strip 903 indicates mark 210 thick and fast, in the step S200 that cuts with the Polarizer of mark, the more multiple different size of correspondence cuts simply, perhaps, when cutting, also can reduce the spacing of clout with single size, cut Polarizer comparatively dense, avoid waste.So, if when indicating mark 210 thick and fast with short distance, because of carrying out step S120 and step S130 thick and fast repeatedly, need spend more man-hour, processing procedure is slow.To this, can in step S120, consider to cut the size of desiring to cut among the step S200 with the Polarizer of mark, as predetermined space, carry out step S120 and step S130 with suitable distance repeatedly.
As shown in Figure 3, make among the step S100 of the Polarizer of having mark, when indicating the step S130 of mark 210, indication device 200 indicates the absorption axes information that marks 210 are the Polarizer cross direction central portion that analyzer 100 measures instantly, carry out step S120 after the completing steps S130, S130 ... but if analyzer 100 is arranged at the upstream of indication device 200, before the step S130 that indicates mark 210, the absorption axes of the same cross direction central portion of Polarizer is promptly finished mensuration in the upstream, measurement result is sent to sign controller 700, transmit analyzer 100 simultaneously to the pitch information between the indication device 200, get final product the man-hour of compression step S120 and step S130.
In the same manner, as shown in Figure 5, cut among the step S200 of the Polarizer of having mark, when reading the step S210 of mark 210, the mark 210 that reading device 300 reads promptly represents to desire instantly to cut the absorption axes information of the Polarizer cross direction central portion of position, carry out step S220 afterwards, S230 ... but if reading device 300 is arranged at the upstream of cutting means 400, the predetermined position arrival cutting means 400 that cuts on Polarizer is promptly finished the step S210 that reads mark 210 before, the information of mark 210 representative is sent to cuts controller 800, transmit reading device 300 simultaneously to the pitch information between the cutting means 400, get final product compression step S210 and step S220, the man-hour of S230.
The absorption axes of three layers of continuous coiled strip 903 cross direction central portion is only measured in making shown in Figure 3 with expression in the synoptic diagram of the Polarizer of mark, but shown in the 6th, 7 figure, measure absorption axes based on the predetermined geometric center that cuts size, and a plurality of absorption axes measured values on the same cross direction are marked in the mark 210, at this moment, the angle that comprises a plurality of absorption axes in the mark 210 also is contained in the data that a plurality of absorption axes on the cross direction locate.Make as illustrated in fig. 6 with after the Polarizer of mark, as shown in Figure 7,, adjust respectively cutting the position and, cutting Polarizer of cutting means respectively in the angle that respectively cuts the position according to the different absorption axes measured value of the same cross direction of mark 210 records.
In addition, the absorption axes of three layers of continuous coiled strip 903 cross direction central portion is only measured in making shown in Figure 3 with preset space length with expression in the synoptic diagram of the Polarizer of mark, but as shown in Figure 8, also can measure the absorption axes data of the plural position on three layers of continuous coiled strip 903 same cross direction according to the preset space length on the length direction, and a plurality of absorption axes measured values on the same cross direction are marked in the mark 210, at this moment, except the angle of a plurality of absorption axes, also be contained in the data that locate on the cross direction in the mark 210.Afterwards, as shown in Figure 9, can adjust the angle and the position of cutting means, cut out Polarizer 910A, can adjust the different cutting means of size respectively, cut out Polarizer 910B1 and 910B2 respectively according to the data among the mark 210B according to the data among the mark 210A.
If the manufacture method of the absorption axes precision of the lifting Polarizer of enforcement the invention described above; with the preset space length on the length direction; the absorption axes at least one place of the continuous coiled strip cross direction of practical measurement; indicate mark in the edge of continuous sheet stock; when cutting; read mark to obtain absorption axes information and the positional information of desiring to cut; the angle and the position of control cutting means cut; the every finished product that then cuts out connects has accurate absorption axes precision; and be protected the protection of film, fractal film, can improve the production yield.
Though the present invention discloses as above with embodiment, so it is not that protection scope of the present invention is when being as the criterion with claims in order to qualification the present invention.
Claims (7)
1. manufacture method that promotes the absorption axes precision of Polarizer is characterized in that comprising:
Steps A, three layers of continuous coiled strip of making Polarizer;
Step B along these three layers continuous coiled strip length direction, measures the absorption axes of at least one monitoring place of these three layers of continuous coiled strip cross directions with the predetermined space on the length direction;
Step C indicates the mark of the positional information of representing this absorption axes information and this monitoring place in these three layers of continuous coiled strip edges of this cross direction;
Step D pastes diaphragm, five layers of continuous coiled strip of fractal film formation on these three layers of continuous coiled strips that indicate mark;
Step e reads this mark;
Step F is according to the angle and the position of this mark control cutting means; And
Step G cuts these five layers of continuous coiled strips and becomes preliminary dimension.
2. the manufacture method of the absorption axes precision of lifting Polarizer as claimed in claim 1 is characterized in that complying with the positional information that this preliminary dimension determines this monitoring place.
3. the manufacture method of the absorption axes precision of lifting Polarizer as claimed in claim 1 is characterized in that comprising: repeat this step B and step C, indicate until these three layers continuous coiled strip and finish.
4. the manufacture method of the absorption axes precision of lifting Polarizer as claimed in claim 1 is characterized in that comprising: repeat this step e, step F and step G, cut until these five layers of continuous coiled strips and finish.
5. the manufacture method of the absorption axes precision of lifting Polarizer as claimed in claim 1 is characterized in that: this step B finishes by analyzer, and this step C finishes by indication device, and this analyzer is arranged at the upstream position of this indication device.
6. the manufacture method of the absorption axes precision of lifting Polarizer as claimed in claim 1 is characterized in that: this step e is finished by reading device, and this step F, G are finished by cutting means, and this reading device is arranged at the upstream position of this cutting means.
7. Polarizer is characterized in that this Polarizer is via forming as any described manufacture method manufacturing in the claim 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074241 CN102156318B (en) | 2011-03-25 | 2011-03-25 | Manufacturing method for promoting absorption axis precision of polarizing plate and polarizing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110074241 CN102156318B (en) | 2011-03-25 | 2011-03-25 | Manufacturing method for promoting absorption axis precision of polarizing plate and polarizing plate |
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| CN102156318A true CN102156318A (en) | 2011-08-17 |
| CN102156318B CN102156318B (en) | 2013-03-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154386A (en) * | 2015-05-14 | 2016-11-23 | 住华科技股份有限公司 | Non-rectangular polarizing plate and method for manufacturing same |
| CN107144908A (en) * | 2015-09-30 | 2017-09-08 | 日东电工株式会社 | The manufacture method of polarization plates and the manufacture device of polarization plates |
| JP2017181994A (en) * | 2016-03-31 | 2017-10-05 | 株式会社巴川製紙所 | Polarizing body for liquid crystal device and method for manufacturing the same |
| JP2018525680A (en) * | 2015-08-21 | 2018-09-06 | スリーエム イノベイティブ プロパティズ カンパニー | Optical film having optical axis, and system and method for processing the same |
| CN113454500A (en) * | 2019-02-08 | 2021-09-28 | 日东电工株式会社 | Method for producing optical film |
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| JP2010066616A (en) * | 2008-09-12 | 2010-03-25 | Nitto Denko Corp | Polarizing film and method for manufacturing the same |
| CN101743493A (en) * | 2008-02-15 | 2010-06-16 | 日东电工株式会社 | Method for manufacturing optical film laminate |
| US20100283943A1 (en) * | 2008-04-15 | 2010-11-11 | Nitto Denko Corporation | Roll of optical film laminate,and method and system for manufacturing the same |
| WO2010131677A1 (en) * | 2009-05-15 | 2010-11-18 | 日東電工株式会社 | Optical display device manufacturing system and manufacturing method, and material roll set and method for manufacturing same |
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| CN101221314A (en) * | 2006-01-12 | 2008-07-16 | 住友化学株式会社 | Method for manufacturing optical film product |
| CN101743493A (en) * | 2008-02-15 | 2010-06-16 | 日东电工株式会社 | Method for manufacturing optical film laminate |
| US20100283943A1 (en) * | 2008-04-15 | 2010-11-11 | Nitto Denko Corporation | Roll of optical film laminate,and method and system for manufacturing the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154386A (en) * | 2015-05-14 | 2016-11-23 | 住华科技股份有限公司 | Non-rectangular polarizing plate and method for manufacturing same |
| JP2018525680A (en) * | 2015-08-21 | 2018-09-06 | スリーエム イノベイティブ プロパティズ カンパニー | Optical film having optical axis, and system and method for processing the same |
| JP2019139239A (en) * | 2015-08-21 | 2019-08-22 | スリーエム イノベイティブ プロパティズ カンパニー | Optical film having optical axis, and system and method for processing the same |
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| JP2017181994A (en) * | 2016-03-31 | 2017-10-05 | 株式会社巴川製紙所 | Polarizing body for liquid crystal device and method for manufacturing the same |
| CN113454500A (en) * | 2019-02-08 | 2021-09-28 | 日东电工株式会社 | Method for producing optical film |
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