CN211206836U - Polarizing plate laminate - Google Patents
Polarizing plate laminate Download PDFInfo
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- CN211206836U CN211206836U CN201921952067.XU CN201921952067U CN211206836U CN 211206836 U CN211206836 U CN 211206836U CN 201921952067 U CN201921952067 U CN 201921952067U CN 211206836 U CN211206836 U CN 211206836U
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- polarizing plate
- polarizing
- laminated
- film
- laminate
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Abstract
The polarizing plate laminate (1A) is a laminate in which a plurality of irregularly shaped polarizing plates (2) are laminated, the polarizing plates have a rectangular reference shape, the polarizing plates (2) have recesses (3) recessed from one side of the rectangle toward the inside of the polarizing plates (2), and the polarizing plates (2) in contact are laminated such that a region having the recesses (3) in one polarizing plate (2) and a region having no recesses (3) in the other polarizing plate (2) face each other.
Description
Technical Field
The utility model relates to a polaroid stack.
Background
As the shape of an image display surface varies, a polarizing plate having a shape other than a simple polygonal shape and having a concave cutout portion (concave portion) is developed as an optical member in an image display device such as a liquid crystal television, an organic E L television, and a smartphone (for example, see patent document 1).
Prior art documents
Patent document
Patent document 1: japanese patent laid-open publication No. 2018-92147
However, in the process of distributing polarizing plates, for example, several hundreds of polarizing plates are stacked and transported in a state where they are put in a storage container, and particularly, a polarizing plate having a different shape is stacked and transported as a laminate. In this case, stress is easily applied to the portion constituting the concave portion in the irregularly shaped polarizing plate, and therefore, there is a concern that the portion may be broken (cracked, or the like). A method of fitting the cushioning material into the recess is considered to protect the periphery of the recess, but the cushioning material must be prepared in accordance with the shape of the recess, and the cushioning material must be attached and detached.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can prevent the damaged polaroid stack of special-shaped partial dysmorphism of special-shaped polaroid.
The utility model provides a polaroid stack is the stack that has the special-shaped polaroid of multi-disc, and this polaroid has the shape that uses the rectangle as the benchmark, and the polaroid has the concave part that caves in from one side of rectangle towards the inboard of polaroid, and the polaroid that contacts stacks mutually and is the region that has the concave part in the polaroid of one side and the region that does not have the concave part in the polaroid of the other side face to face.
According to this polarizing plate laminate, the region having the concave portion in the polarizing plate faces the region having no concave portion of the other polarizing plate laminated thereon, and therefore, the stress applied to the concave portion from the outside is relaxed by the presence of the other polarizing plate. That is, in the irregular polarizing plate, the corner portion of the irregular portion constituting the concave portion is the weakest portion with respect to the stress from the outside, and according to the polarizing plate laminate and the method of laminating polarizing plates of the present invention, the corner portion is physically protected by the other polarizing plates laminated, and therefore, the irregular portion of the polarizing plate can be prevented from being damaged.
In another embodiment of the present invention, there is provided a polarizing plate laminate including a plurality of irregularly shaped polarizing plates stacked, the polarizing plates having a shape based on a rectangle, the polarizing plates having a concave portion recessed from one side of the rectangle toward an inner side of the polarizing plates, the polarizing plate laminate including a plurality of polarizing plate groups, the plurality of polarizing plate groups being configured such that regions having the concave portions face each other, and the plurality of polarizing plate groups being stacked such that a region having the concave portion in one polarizing plate group and a region having no concave portion in the other polarizing plate group face each other.
According to this polarizing plate laminate, the region having the recess in the polarizing plate group faces the region having no recess in the other polarizing plate group laminated thereon, and therefore the stress applied to the recess from the outside is relieved by the presence of the other polarizing plate group. That is, in the irregular polarizing plate, the corner portion of the irregular portion constituting the concave portion is the weakest portion against the stress from the outside, and according to the polarizing plate laminate and the method of laminating polarizing plates of the present invention, the corner portion is physically protected by the other laminated polarizing plate groups, and therefore, the irregular portion of the polarizing plate can be prevented from being damaged.
In the polarizing plate laminate, the stacked polarizing plate groups are preferably stacked such that the regions having the recesses are located on opposite sides of the rectangular regions having the recesses. In such a lamination method, since the polarizing plates have a rectangular shape, the four corners of the polarizing plate group are aligned with each other, and the stability of the entire polarizing plate laminate is maintained.
In the polarizing plate laminate, the total number of polarizing plates having the same orientation of the concave portions preferably accounts for 30% to 70% of the total number of the polarizing plates to be laminated. This makes it possible to protect the concave portion substantially uniformly as a whole of the polarizing plate laminate.
The utility model discloses well polaroid that uses can possess: a polarizing film; protective films laminated on both surfaces of the polarizing film; an adhesive layer laminated on the single-piece side of the protective film; and a release film laminated on the adhesive layer.
According to the utility model discloses, can provide one kind and can prevent the damaged polaroid sheet stack of special-shaped partial dysmorphism of special-shaped polaroid sheet.
Drawings
Fig. 1 is a perspective view of a polarizing plate laminate according to embodiment 1.
Fig. 2 is an exploded perspective view of the polarizing plate laminate of fig. 1.
Fig. 3 is a perspective view of the polarizing plate laminate according to embodiment 2.
Fig. 4 is an exploded perspective view of the polarizing plate laminate of fig. 3.
Fig. 5 is a perspective view of a polarizing plate laminate according to another embodiment.
Fig. 6 is a plan view of a polarizing plate laminate according to another embodiment.
-description of symbols-
1A, 1B, 1C, 1D … polarizer laminate, 2 … polarizer, 3 … depression, 4A, 4B, 4C, 4D … polarizer set, a1 … having a region of depression 3, a2 … not having a region of depression 3.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description thereof is omitted.
< embodiment 1 >
As shown in fig. 1 and 2, a polarizing plate laminate 1A according to embodiment 1 of the present invention is formed by laminating a plurality of polarizing plates 2 so that the positions of the four corners coincide with each other. Here, the polarizing plate 2 includes a polarizing film and a protective film laminated on one or both surfaces of the polarizing film. The polarizing plate may further include an adhesive layer and a release film on one surface thereof. When the adhesive layer and the release film are provided, the layers are preferably aligned in the same orientation (for example, in the lower side in the figure) so that the front and back surfaces are aligned.
The other surface of the polarizing plate may further include an adhesive layer and a surface protective film. When the polarizing plate has an adhesive layer on both surfaces thereof, one adhesive layer is used for attaching the polarizing plate to a display panel or the like, and the other adhesive layer is matched with a surface protective film attached together to protect the surface of the polarizing plate from scratches or the like during transportation or the like. As described above, the polarizing plate in which the protective film is laminated on one surface or both surfaces of the polarizing film has been described, but the protective film may be a retardation film instead of the protective film, or may have a retardation film in addition to the protective film. The polarizing film, the protective film, and the retardation film may be any films known in the art.
The polarizing plate 2 is a special-shaped polarizing plate having a rectangular shape as a reference, and has a concave portion 3 recessed from one side of the rectangle toward the inside of the polarizing plate 2. Here, "based on a rectangle" means that the shape of the polarizing plate is assumed to be rectangular when the recess 3 is not present. In the present specification, "rectangular" means a rectangle and is a concept including a square. The "rectangular shape" also includes a shape obtained by subjecting the four corners thereof to deformation processing such as round-corner processing.
The size of the polarizing plate 2 is selected according to the size of the display panel to be used for lamination, and may be, for example, the size described in japanese patent application laid-open No. 2018-159911. Specifically, as the size of the polarizing film contained in the polarizing plate 2 when it is rectangular, the width of the short side is preferably more than 20mm and 160mm or less, more preferably more than 25mm and 130mm or less, still more preferably more than 30mm and 100mm or less, and particularly preferably more than 30mm and 80mm or less. The length of the long side (side in the direction perpendicular to the width direction of the polarizing plate 2) may be, for example, 30mm or more and 600mm or less. The width of the recess 3 is preferably less than 1.0 times the length of the side on which the recess 3 is formed (the length of the side when no recess 3 is present), and is preferably 0.03 times or more, 0.10 times or more, 0.13 times or more, 0.15 times or more, 0.20 times or more, or 0.22 times or more. More preferably 0.30 times or more. As shown in fig. 1 and 3, when the recess 3 is semicircular, the length of the recess 3 may be the radius thereof, and may be, for example, 3mm to 15 mm. Here, the case where the recess 3 is semicircular is shown, but depending on the width and length of the recess 3, it may be a case where it is semicircular in plan view, and as described later, it may be コ -shaped (a rectangular cutout in plan view) or V-shaped (a triangular cutout in plan view) or other shapes.
The stacked polarizers 2 are all formed in the same shape, and have a recess 3 on one side of a reference rectangle. Fig. 1 and 2 show a case where the recess 3 has a shape that describes a substantially semicircular arc. The width of the recess 3, that is, the width of a portion opened to one side of the rectangle as a reference may be 5mm or more and 30mm or less. The depth of the recess 3, that is, the length of a line drawn perpendicularly from one side of a rectangle as a reference to the deepest portion of the recess 3 may be 1mm or more and 30mm or less.
The thickness of the polarizing plate 2 is not particularly limited, and can be selected within the range of a polarizing plate processed into a single piece by cutting, and is, for example, about 10 to 150 μm.
In the polarizing plate laminate 1A, the polarizing plates 2 in contact with each other are laminated such that a region a1 (see fig. 2) having the concave portion 3 in one polarizing plate 2 faces a region a2 not having the concave portion 3 in the other polarizing plate 2. That is, when two polarizing plates 2 in contact with each other are focused, the stacked polarizing plates 2 are oriented by 180 ° with respect to an axis perpendicular to the principal surface of the polarizing plate 2, and the region a1 having the concave portion 3 is stacked so as to be located on the opposite side of the region a1 having the concave portion 3 in a rectangular shape. In this manner, the recesses 3 are stacked in different directions for each of the polarizing plates 2. Here, the term "region" is used to specify a portion in a rectangle, and refers to an edge portion having a predetermined area extending from an arbitrary side of the rectangle to the inside of the polarizing plate along the side.
The number of stacked polarizing plates 2 in the entire polarizing plate stack 1A is preferably 100 to 1000. The polarizing plate laminate 1A is placed in a storage container and conveyed so as to be sandwiched between buffer materials from the top and bottom in the figure.
The polarizing plate laminate 1A laminated by this lamination method has a shape in which the region a1 having the concave portion 3 in the polarizing plate 2 faces the region a2 having no concave portion 3 of the other polarizing plate 2 laminated thereon, and therefore stress applied to the concave portion from the outside is relaxed by the presence of the other polarizing plate 2. That is, in the polarizing plate formed in a deformed shape like the polarizing plate 2, the corner portion of the deformed portion constituting the concave portion 3 is the weakest portion against the stress from the outside, but according to the polarizing plate laminate 1A of the present embodiment, the corner portion is physically protected by the other polarizing plate 2 laminated, and therefore, the deformed portion of the polarizing plate 2 can be prevented from being damaged.
In the polarizing plate laminate 1A, the polarizing plates 2 are laminated such that the region a1 having the concave portion 3 is located on the opposite side of the region a1 having the concave portion 3, and therefore, the four corners of all the polarizing plates 2 are aligned, and the stability of the entire polarizing plate laminate 1A is maintained.
< embodiment 2 >
As shown in fig. 3 and 4, a polarizing plate laminate 1B according to embodiment 2 of the present invention is formed by laminating a plurality of polarizing plates 2. The laminated polarizing plate 2 is the same as the polarizing plate 2 according to embodiment 1. The polarizing plate laminate 1B according to embodiment 2 is different from the polarizing plate laminate 1A according to embodiment 1 in that the polarizing plates 2 are not laminated one by one with their orientations being different, but the groups of polarizing plates 4A and 4B each composed of a plurality of polarizing plates 2 are laminated with their orientations being different from each other.
The polarizing plate laminate 1B includes two polarizing plate groups 4A and 4B. Each of the polarizer groups 4A and 4B is configured by stacking a plurality of polarizers 2 so that the regions a1 having the recesses 3 face each other (in fig. 4, a symbol "a 1" is given by collecting a plurality of polarizers 2 and the same applies to a region "a 2" not having the recesses 3, which will be described later), that is, so that the recesses 3 face each other in the same direction. The number of polarizing plates 2 constituting one polarizing plate group is preferably 50 to 200.
The plurality of polarizer groups 4A and 4B are stacked such that the region a1 having the recess 3 in one polarizer group (1 st polarizer group) 4A faces the region a2 having no recess 3 in the other polarizer group (2 nd polarizer group) 4B. That is, the stacked polarizer groups are oriented by being rotated by 180 ° about an axis perpendicular to the principal surfaces of the polarizer groups, and the region a1 having the concave portion 3 is located on the opposite side of the rectangular region a1 having the concave portion 3 of each of the stacked polarizer groups. Thus, the concave portion 3 can be observed on one of the four surfaces constituting the thickness portion of the polarizing plate laminate 1B without forming a rectangular parallelepiped in the overall appearance shape. On one of the opposite surfaces, the recesses 3 are connected to occupy a half of the stacked thickness to form a recess group, and on the other surface, the recesses 3 are connected to occupy the remaining half of the stacked thickness to form a recess group.
In each of the polarizer groups 4A and 4B, the number of stacked polarizers 2 is preferably 50 to 500. In the polarizing plate laminate 1B, the total number of polarizing plates 2 having the same orientation of the concave portions 3 is preferably 30 to 70%, more preferably 40 to 60%, and still more preferably 45 to 55% of the total number of polarizing plates 2 to be laminated. Within these ranges, the recesses 3 can be easily and uniformly protected as the entire polarizing plate laminate 1B.
Examples of the lamination method for constituting the polarizing plate laminate 1B include two methods. The first method is a method in which a plurality of polarizing plates 2 are stacked with the concave portions 3 facing the same direction to form the respective independent polarizing plate groups 4A and 4B, and finally, the two polarizing plate groups 4A and 4B are stacked on each other. The second method is a method of forming one polarizer group 4A first and then sequentially stacking another polarizer 2 thereon to form the next polarizer group 4B. In this case, when the other polarizing plate 2 is laminated on the polarizing plate group 4A, the region a1 having the concave portion 3 in the polarizing plate group 4A and the region a2 not having the concave portion 3 in the other polarizing plate 2 are laminated so as to face each other, and the subsequent polarizing plate 2 is laminated: with respect to the other polarizing plate 2, the regions a1 having the recesses 3 are further laminated with the polarizing plate 2 facing each other.
While the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, in embodiment 2, a polarizing plate laminate 1B is shown in which two polarizing plate groups can be regarded as being laminated, but three or more polarizing plate groups may be included in the polarizing plate laminate. For example, as shown in fig. 5, the polarizing plate laminate of the present invention may be a polarizing plate laminate 1C including four polarizing plate groups 4A, 4B, 4C, and 4D.
In the polarizing plate laminate 1C shown in fig. 5, the total number of polarizing plates 2 having the same orientation of the concave portions 3 is preferably 30 to 70%, more preferably 40 to 60% of the total number of polarizing plates 2 stacked. In particular, the number of the recesses 3 in one direction is preferably substantially the same as that in the other direction. Thus, the recess 3 can be protected substantially uniformly as the entire polarizing plate laminate 1C.
In the above two embodiments, the polarizing plate 2 is laminated so that the directions in which the concave portions face are different by 180 °, but the directions in which the concave portions face may be different by 90 °. In particular, when the shape of the polarizer is a square reference shape, the polarizing plate laminate 1D can be configured such that the concave portions 3 face any of four directions in a plan view, as shown in fig. 6. In this case, since the positions of the four corners of the square are uniform on all the polarizers, the stability is high. In this embodiment, since the recesses 3 are oriented in four directions in a plan view of the polarizing plate laminate 1D, the number of polarizing plates having the recesses 3 oriented in the same direction preferably accounts for 15 to 35%, more preferably 20 to 30%, of the total number of polarizing plates.
In the above-described embodiment, the shape of the recess is shown in a form of drawing an arc of a substantially semicircular shape (semicircular notch), but the shape of the recess may be コ -shaped (quadrangular notch) or other shapes such as V-shaped (triangular notch).
Industrial availability-
The utility model discloses can utilize in the transport of special-shaped polaroid.
Claims (8)
1. A polarizing plate laminate comprising a plurality of irregularly shaped polarizing plates laminated together, the irregularly shaped polarizing plates having a rectangular shape as a reference,
the polarizing plate laminate is characterized in that,
the polarizing plate has a concave portion recessed from one side of the rectangle toward the inner side of the polarizing plate,
the polarizing plates in contact are stacked on each other as follows: the region having the recessed portion in one polarizing plate and the region not having the recessed portion in the other polarizing plate face each other.
2. The polarizing plate laminate according to claim 1,
the polarizing plate includes:
a polarizing film;
protective films laminated on both surfaces of the polarizing film;
an adhesive layer laminated on a single-sheet side of the protective film; and
and a release film laminated on the adhesive layer.
3. A polarizing plate laminate comprising a plurality of irregularly shaped polarizing plates laminated together, the irregularly shaped polarizing plates having a rectangular shape as a reference,
the polarizing plate laminate is characterized in that,
the polarizing plate has a concave portion recessed from one side of the rectangle toward the inner side of the polarizing plate,
the polarizing plate laminate includes a plurality of polarizing plate groups configured such that regions having the concave portions face each other,
the plurality of polarizer sets are stacked on each other as: the region having the recess in one of the polarizer groups and the region not having the recess in the other of the polarizer groups face each other.
4. The polarizing plate laminate according to claim 3,
the stacked sets of polarizers are stacked on top of each other as: the regions having the recesses are located on opposite sides of the rectangular regions having the recesses to each other.
5. The polarizer laminate according to claim 3 or 4, wherein,
the total number of the polarizing plates having the same orientation of the recesses accounts for 30 to 70% of the total number of the laminated polarizing plates.
6. The polarizing plate laminate according to claim 3,
the polarizing plate includes:
a polarizing film;
protective films laminated on both surfaces of the polarizing film;
an adhesive layer laminated on a single-sheet side of the protective film; and
and a release film laminated on the adhesive layer.
7. The polarizer laminate according to claim 4,
the polarizing plate includes:
a polarizing film;
protective films laminated on both surfaces of the polarizing film;
an adhesive layer laminated on a single-sheet side of the protective film; and
and a release film laminated on the adhesive layer.
8. The polarizer laminate according to claim 5,
the polarizing plate includes:
a polarizing film;
protective films laminated on both surfaces of the polarizing film;
an adhesive layer laminated on a single-sheet side of the protective film; and
and a release film laminated on the adhesive layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018239776A JP6683798B1 (en) | 2018-12-21 | 2018-12-21 | Polarizing plate laminate and method for laminating polarizing plates |
| JP2018-239776 | 2018-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206836U true CN211206836U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921952067.XU Active CN211206836U (en) | 2018-12-21 | 2019-11-12 | Polarizing plate laminate |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6683798B1 (en) |
| CN (1) | CN211206836U (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59176575U (en) * | 1983-05-12 | 1984-11-26 | トツパン・ム−ア株式会社 | Filling sheet set for pasting |
| US7059226B2 (en) * | 2002-09-20 | 2006-06-13 | Edward E. Alon | Page indexing system and apparatus for forming page shapes of system |
| JP4157758B2 (en) * | 2002-12-02 | 2008-10-01 | 日産ディーゼル工業株式会社 | Manufacturing method and apparatus for electric double layer capacitor |
| JP5918157B2 (en) * | 2013-02-22 | 2016-05-18 | 株式会社フジキカイ | Laminate feeder |
| JP6495374B2 (en) * | 2016-05-30 | 2019-04-03 | 住友化学株式会社 | Polarizing plate for image display device, image display device, and method for producing polarizing plate for image display device |
-
2018
- 2018-12-21 JP JP2018239776A patent/JP6683798B1/en active Active
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2019
- 2019-11-12 CN CN201921952067.XU patent/CN211206836U/en active Active
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| Publication number | Publication date |
|---|---|
| JP2020101679A (en) | 2020-07-02 |
| JP6683798B1 (en) | 2020-04-22 |
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