KR20220084370A - Polarizer composite and optical laminate - Google Patents

Abstract

A polarizer composite has a polarizer, a retardation layer, and a reinforcing material. The polarizer has a polarization region having a thickness of 15 μm or less, and a non-polarization region surrounded by the polarization region in plan view. The retardation layer has a retardation region that has retardation characteristics and exists in a region corresponding to the polarization region, and a non-retardation region that does not have retardation characteristics and exists in a region corresponding to the non-polarization region. The reinforcing material has a plurality of cells each having an open end face, each of the open end faces being arranged to face the plane of the polarizer, a cell region in which the cell exists and in a region corresponding to the polarization region; It has a non-cell region that does not exist and exists in a region corresponding to the non-polarization region. A non-polarization area|region, a non-retardation area|region, and a non-cell area|region contain the hardened|cured material of active energy ray-curable resin.

Description

Polarizer composite and optical laminate

The present invention relates to a polarizer composite and an optical laminate.

A polarizer is widely used as a polarization|polarized-light supply element in display apparatuses, such as a liquid crystal display device and an organic electroluminescent (EL) display apparatus, and also as a polarized-light detection element. A display device with a polarizer is also developed in mobile devices such as notebook personal computers and mobile phones, and polarizers having regions with different transmittance are required from the demands for diversification of display purposes, clarification of display divisions, decoration, etc. is becoming In particular, in small and medium-sized portable terminals typified by smartphones and tablet-type terminals, a polarizer may be bonded to the entire surface of the display surface in order to have a design without borders over the entire surface from the viewpoint of decorativeness. In this case, since the polarizer may be overlapped also in the area of the camera lens and the area of the icon or logo printed under the screen, there is a problem that the sensitivity of the camera is deteriorated or the designability is deteriorated.

For example, in Patent Document 1, a dichroic substance low concentration part having a relatively low content of a dichroic substance is partially provided in a polarizer included in a polarizing plate, and the camera is arranged in correspondence with this dichroic substance low concentration part. It is described to avoid adverse effects.

Patent Document 1: Japanese Patent Laid-Open No. 2015-215609

In patent document 1, the resin film is partially decolorized and the dichroic substance low concentration part is formed by performing the chemical process of making a basic solution contact the resin film containing a dichroic substance. In order to process the basic solution used for decolorization as a waste liquid, time and cost are needed. Moreover, it is described in patent document 1 that content of an iodine can be reduced and a dichroic substance low concentration part can be formed by making a basic solution contact when iodine as a dichroic substance is used. However, when a dichroic substance other than iodine is used, there is no disclosure regarding a specific method of forming the dichroic substance low concentration portion.

An object of this invention is to provide the polarizer composite and optical laminated body provided with a novel polarizer instead of the polarizer which formed the area|region with little content of a dichroic substance by chemical treatment, such as discoloration.

The present invention provides the following polarizer composite and optical laminate.

[1] A polarizer composite having a polarizer, a retardation layer and a reinforcing material,

The polarizer has a polarization region having a thickness of 15 μm or less, and a non-polarization region surrounded by the polarization region in plan view,

The retardation layer has a retardation characteristic and has a retardation region existing in a region corresponding to the polarization region, and a non-retardation region having no retardation characteristic and existing in a region corresponding to the non-polarization region;

The reinforcement is

a plurality of cells having an open end face, and each open end face is arranged to face the face of the polarizer;

a cell region in which the cell is present and in a region corresponding to the polarization region, and a non-cell region in which the cell is not present and in a region corresponding to the non-polarization region;

The non-polarization region, the specific retardation region, and the non-cell region include a cured product of an active energy ray-curable resin,

The cured product contained in the non-polarization region is provided in a through hole surrounded by the polarization region in plan view,

The polarizer composite in which the cured product contained in the non-retardation region is provided in a through hole surrounded by the retardation region in plan view.

[2] The reinforcing material is provided on one side of the polarizer,

The polarizer composite according to [1], wherein the reinforcing material has the retardation layer on the opposite side to the polarizer.

[3] the retardation layer is formed on one side of the polarizer,

The polarizer composite according to [1], wherein the retardation layer has the reinforcing material on the opposite side to the polarizer.

[4] The polarizer composite according to [2] or [3], further comprising the reinforcing material on the other side of the polarizer.

[5] The polarizer composite according to any one of [1] to [4], wherein the thickness of the cured product is the same as the thickness of the laminated structure portion including the polarization region, the retardation region and the cell region in the polarizer composite.

[6] The polarizer composite according to any one of [1] to [4], wherein a thickness of the cured product is smaller than a thickness of a layered structure portion including the polarization region, the retardation region, and the cell region in the polarizer composite.

[7] The polarizer composite according to any one of [1] to [4], wherein a thickness of the cured product is greater than a thickness of a laminated structure portion including the polarization region, the retardation region, and the cell region in the polarizer composite.

[8] The polarizer composite according to any one of [1] to [7], wherein the retardation region is a polymerization cured layer of a polymerizable liquid crystal compound.

[9] The polarizer composite according to any one of [1] to [8], wherein the non-polarization region has light transmission properties.

[10] The polarizer composite according to any one of [1] to [9], wherein the non-polarization region has a planar diameter of 0.5 mm or more and 20 mm or less.

[11] The polarizer composite according to any one of [1] to [10], wherein the active energy ray-curable resin contains an epoxy compound.

[12] The polarizer composite according to [11], wherein the epoxy compound contains an alicyclic epoxy compound.

[13] The polarizer composite according to any one of [1] to [12], wherein the shape of the opening of the cell is a polygonal shape, a circular shape, or an elliptical shape.

[14] The polarizer composite according to any one of [1] to [13], wherein a light-transmitting filler is further provided in the inner space of the cell.

[15] An optical laminate having a protective layer on one side or both sides of the polarizer composite according to any one of [1] to [14].

[16] The protective layer provided on one side of the polarizer composite is the same active energy ray-curable resin as the active energy ray-curable resin constituting the cured product included in the non-polarization region, the specific retardation region and the non-cell region The optical laminate according to [15].

ADVANTAGE OF THE INVENTION According to this invention, the polarizer composite and optical laminated body provided with a novel light polarizer can be provided.

Fig. 1 (a) is a schematic cross-sectional view schematically showing an example of the polarizer composite of the present invention, (b) is a schematic plan view on the reinforcing material side of the polarizer composite shown in (a), (c) is , it is a schematic plan view of the phase difference layer side of the polarizer composite shown in (a).
Fig.2 (a)-(d) is a schematic sectional drawing which shows typically another example of the polarizer composite of this invention.
3 (a) and (b) are diagrams schematically showing an example of a cross section around the non-polarization region, non-cell region, and non-retardation region of the polarizer composite, in the non-polarization region, non-cell region and non-retardation region It is explanatory drawing for demonstrating the method of determining the thickness of the provided hardened|cured material.
It is a schematic sectional drawing which shows typically another example of the polarizer composite of this invention.
It is a schematic sectional drawing which shows typically another example of the polarizer composite of this invention.
It is a schematic sectional drawing which shows typically another example of the polarizer composite of this invention.
7(a)-(d) are schematic cross-sectional views which show typically an example of the manufacturing method of the polarizer composite_body|complex of this invention.
8A to 8D are schematic cross-sectional views schematically showing a continuation to the manufacturing method of the polarizer composite shown in FIG. 8 .
9A to 9C are schematic cross-sectional views schematically showing another example of the method for manufacturing the polarizer composite of the present invention.
10A to 10C are schematic cross-sectional views schematically showing a continuation to the manufacturing method of the polarizer composite shown in FIG. 9 .
11A to 11E are schematic cross-sectional views schematically showing another example of the method for manufacturing the polarizer composite of the present invention.
12A to 12D are schematic cross-sectional views schematically showing a continuation to the manufacturing method of the polarizer composite shown in FIG. 11 .
13A to 13D are schematic cross-sectional views schematically showing another example of the method for manufacturing the polarizer composite of the present invention.
14A to 14C are schematic cross-sectional views schematically showing a continuation to the manufacturing method of the polarizer composite shown in FIG. 13 .
It is a schematic sectional drawing which shows typically an example of the optical laminated body of this invention.
It is a schematic sectional drawing which shows typically another example of the optical laminated body of this invention.
It is a schematic sectional drawing which shows typically still another example of the optical laminated body of this invention.
It is a schematic sectional drawing which shows typically still another example of the optical laminated body of this invention.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, preferable embodiment of the polarizer composite and optical laminated body of this invention is described. In all the drawings below, the scales are appropriately adjusted to facilitate understanding of each component, and the scale of each component shown in the drawings and the scale of the actual component do not necessarily coincide.

<Polarizer complex>

(polarizer complex (1))

Fig. 1 (a) is a schematic cross-sectional view schematically showing an example of the polarizer composite of this embodiment, and Fig. 1 is a schematic plan view of the polarizer composite shown in Fig. 1 (a) on the reinforcing material side, Fig. Fig. 1(c) is a schematic plan view of the phase difference layer side of the polarizer composite shown in Fig. 1(a). 2A to 2D are schematic cross-sectional views schematically showing another example of the polarizer composite of the present embodiment. The polarizer composite 40 shown in FIG. 1A has the polarizer 10, the reinforcing material 50, and the retardation layer 71 in this order.

The polarizer 10 which the polarizer composite 40 has has a polarization area|region 11 and the non-polarization area|region 12, as shown to Fig.1 (a). The thickness of the polarization region 11 is 15 μm or less. The non-polarization region 12 is a region surrounded by the polarization region 11 in a plan view of the polarizer 10 .

Arrangement of the polarization area|region 11 and the non-polarization area|region 12 in the polarizer 10 will not be specifically limited if the polarization area|region 11 is provided so that the non-polarization area|region 12 may be enclosed. The planar view of the polarizer 10 WHEREIN: It is preferable that the total area occupied by the polarization area|region 11 is larger than the total area which the non-polarization area|region 12 occupies. The polarizer 10 should just have one non-polarization area|region 12, and may have the non-polarization area|region 12 two or more. When it has two or more non-polarization areas|regions 12, the shape of each non-polarization area|region 12 may mutually be mutually same, and may differ from each other.

The reinforcing material 50 included in the polarizer composite 40 has a plurality of cells 51 each having an open end surface, as shown in FIG. are arranged to face each other. The reinforcing material 50 has a cell region 55 in which the cell 51 exists and a non-cell region 56 in which the cell 51 does not exist. The cell 51 has a hollow columnar (cylindrical) structure surrounded by cell partition walls 53 that partition the cell 51, and has an open end face with both ends of the columnar structure open in the axial direction. The non-cell region 56 in which the cell 51 does not exist is an area in which the cell partition walls 53 constituting the cell 51 and a hollow columnar (tubular shape) space surrounded by the cell partition walls 53 do not exist.

In the reinforcing material 50 , the cell region 55 exists in a region corresponding to the polarization region 11 present in the polarizer 10 , and the non-cell region 56 is a non-polarization region ( 12) exists in the corresponding area. Here, the presence of the cell region 55 in the region corresponding to the polarization region 11 means that the cell region 55 and the polarization region 11 have substantially the same shape and substantially the same dimensions in the plan view direction. Likewise, the fact that the non-cell region 56 is in the region corresponding to the non-polarization region 12 means that the non-cell region 56 and the non-polarization region 12 are at approximately the same position and approximately the same in the plan view direction. It means that the shape and the size (diameter) are approximately the same. In other words, when the non-cell region 56 is projected onto the polarizer 10 in the planar view direction, the projected region of the non-cell region 56 and the non-polarization region 12 in the polarizer 10 are approximately say the same thing According to the manufacturing means of the polarizer composite which will be described later, it is possible to efficiently manufacture the polarizer composite in which the cell region 55 corresponds to the polarization region 11 . When the polarizer 10 included in the polarizer composite 40 has two or more non-polarization regions 12, if the non-cell region 56 is present in the region corresponding to at least one non-polarization region 12, The cell area 55 may exist in the area|region corresponding to the other non-polarization area|region 12 (projection).

The retardation layer 71 may be formed on the side opposite to the polarizer 10 of the reinforcing material 50 through a bonding layer (not shown). As a bonding layer, an adhesive layer or an adhesive bond layer is mentioned. Examples of the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer and the adhesive for forming the pressure-sensitive adhesive layer include pressure-sensitive adhesives and adhesives used for constituting a filler to be described later. The bonding layer interposed between the reinforcing material 50 and the retardation layer 71 is preferably also formed in the inner space of the cell 51 of the reinforcing material 50 . If the inner space of the cell 51 of the reinforcing material 50 is hollow, the visibility of the display device may decrease due to a difference in refractive index between the cell partition wall 53 and the inner space of the cell 51 . Therefore, by providing the material constituting the bonding layer interposed between the reinforcing material 50 and the retardation layer 71 so as to fill the internal space of the cell 51 of the reinforcing material 50, the display device A fall in visibility can be suppressed. As will be described later, when a gap is formed between the plurality of cells 51, it is preferable that a material constituting the bonding layer is also provided in the gap.

The phase difference layer 71 has a phase difference region 75 having a phase difference characteristic and a non-retardation region 76 having no phase difference characteristic, as shown in FIG. 1A . The retardation region 75 refers to a region in which at least one of the in-plane retardation value R0 and the thickness direction retardation value Rth exceeds 40 nm at a wavelength of 590 nm. The specific retardation region 76 means a region in which the in-plane retardation value R0 and the thickness direction retardation value Rth are each 40 nm or less at a wavelength of 590 nm.

The in-plane retardation value R0 is a retardation value in a direction perpendicular to the thickness direction of the retardation layer 70 (in-plane direction), and can be obtained by the following formula (I). The thickness direction retardation value Rth is a retardation value of the thickness direction of the retardation layer 70, and can be calculated|required by following formula (II).

Both the in-plane retardation value R0 and the thickness direction retardation value Rth are measured with light having a wavelength of 590 nm at a temperature of 23°C.

R0=(Nx-Ny)×d (I)

Rth=[{(Nx+Ny)/2}-Nz]×d (II)

[In formulas (I) and (II),

Nx is the refractive index in the direction in which the in-plane refractive index is maximum (that is, the slow axis direction),

Ny is the refractive index in the direction orthogonal to the slow axis in the plane (that is, the fast axis direction),

Nz is the refractive index in the thickness direction,

d is the thickness [nm] of the retardation layer.]

The in-plane retardation value R0 and the thickness direction retardation value Rth can be measured, for example, by a birefringence measuring apparatus (trade name: KOBRA-WPR) manufactured by Oji Instruments Corporation.

In the retardation layer 71 included in the polarizer composite 40 , the retardation region 75 is present in a region corresponding to the polarization region 11 of the polarizer 10 , and the non-retardation region 76 is the polarizer 10 . ) in the region corresponding to the non-polarization region 12 . Here, the presence of the phase difference region 75 in the region corresponding to the polarization region 11 means that the phase difference region 75 and the polarization region 11 have substantially the same shape and substantially the same dimension in the plan view direction. Likewise, that the non-phase difference region 76 is in the region corresponding to the non-polarization region 12 means that the non-phase difference region 76 and the non-polarization region 12 are at approximately the same position in the planar view direction; It means that they have approximately the same shape and approximately the same size (diameter). In other words, when the non-retardation region 76 is projected onto the polarizer 10 in the planar view direction, the projection region of the non-retardation region 76 and the non-polarization region 12 in the polarizer 10 are This says about the same thing. According to the manufacturing means of the polarizer composite which will be described later, it is possible to efficiently manufacture the polarizer composite in which the retardation region 75 is present in the region corresponding to the polarization region 11 . When the polarizer 10 included in the polarizer complex 40 has two or more non-polarization regions 12 , the non-retardation region 76 is present in the region corresponding to at least one non-polarization region 12 . And the phase difference area|region 75 may exist in the area|region corresponding to the other non-polarization area|region 12. At least one non-phase difference region 76 is preferably provided in a region corresponding to the non-polarization region 12 and a region corresponding to the non-cell region 56 .

The polarizer composite 40 may have one layer of retardation layer 71 on the opposite side to the polarizer 10 of the reinforcing material 50, and may have the retardation layer 71 of two or more layers. In the case of having two or more retardation layers, the retardation layers may be laminated with each other through a bonding layer, and the retardation characteristics may be the same or different from each other. In the case of having two or more retardation layers, if at least one layer is the retardation layer 71, the other retardation layer may be a retardation layer entirely composed of a retardation region (a retardation layer having no specific retardation region). In this case, the retardation layer 71 is preferably formed on the side relatively close to the polarizer 10 .

The non-polarization region 12 of the polarizer 10, the non-cell region 56 of the reinforcing material 50, and the non-retardation region 76 of the retardation layer 71 are formed of an active energy ray-curable resin (hereinafter, “curable resin (X) )" in some cases.)). The non-polarization area|region 12 can be made into the area|region in which the hardened|cured material of curable resin (X) was provided in the through-hole 22 surrounded by the polarization area|region 11 in planar view. The non-cell region 56 is provided so as to cut out all or a part of the plurality of cells 51 , and is formed in a through hole 52 formed in a region corresponding to the through hole 22 , in which the curable resin (X) is formed. It can be done in the area where the cargo is prepared. The non-retardation region 76 is a region in which a cured product of the curable resin (X) is provided in the through-hole 72 formed in the region corresponding to the through-hole 22 and surrounded by the retardation region 75 in plan view. to be.

The through-hole 22 of the polarizer 10, the through-hole 52 of the reinforcing material 50, and the through-hole 72 of the retardation layer 71 can be made into the same shape in planar view. The through-hole 22 , the through-hole 52 , and the through-hole 72 may communicate in the thickness direction of the polarization region 11 , and are curable across the communicating through-holes 22 , 52 , 72 . A cured product of the resin (X) can be prepared.

The polarizer 10 which the polarizer composite 40 has has the non-polarization area|region 12, as shown to Fig.1 (a). Therefore, when applying the polarizer composite 40 to a display device such as a liquid crystal display device or an organic EL display device deployed on a smartphone or tablet type terminal, etc., it is made to correspond to the non-polarization region 12, a camera lens, an icon or By arranging printing parts, such as a logo, the fall of the sensitivity of a camera and the fall of designability can be suppressed. In particular, in the polarizer composite 40 , the retardation layer 71 has a non-retardation region 76 . Therefore, by making the non-polarization area 12 and the non-phase difference area 76 correspond to the camera lens, and by arranging printing parts such as icons or logos, a decrease in the sensitivity of the camera and a decrease in designability can be further suppressed. have.

Since the polarizer 10 has the non-polarization region 12, it is thought that cracks are likely to occur in the periphery of the non-polarization region 12 due to the contraction of the polarizer 10 according to the temperature change received when applied to a display device, etc. . Moreover, since the thickness of the polarization area|region 11 is 15 micrometers or less, since the polarizer 10 receives an impact, it is thought that it is easy to generate|occur|produce a crack. In the polarizer composite 40, since the reinforcing material 50 is provided on one side of the polarizer 10 as described above, the occurrence of cracks in the case of temperature change or impact, or the progress of fine cracks to large cracks can be suppressed. I think it can

In the polarizer composite 40 , the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 contain the cured product of the curable resin (X), so that the through hole 22 of the polarizer 10 is ), the through hole 52 of the non-cell region 56 , and the through hole 72 of the non-phase difference region 76 may be filled. Since the polarizer 10 of the polarizer composite 40 has a thickness of 15 μm or less, the cured product of the curable resin X is not provided in the non-polarization region 12 and the through hole 22 is hollow. , when applied to a display device, etc., there is a possibility that a problem such as a crack may occur in the periphery of the through hole 22 due to the shrinkage of the polarizer according to the temperature change exposed. On the other hand, like the polarizer 10 of the polarizer composite 40, the non-polarization region 12 can be filled by providing a cured product of the curable resin X in the through hole 22, It can suppress the occurrence of problems.

The thickness of the cured product of the curable resin (X) provided in the polarizer composite 40 is the thickness of the layered structure portion including the polarization region 11 , the cell region 55 , and the retardation region 75 in the polarizer composite 40 . It may be the same as the thickness (FIG. 1(a)), may be smaller than the thickness of the laminated structure part (FIG. 2(a), (b)), or may be larger than the thickness of the laminated structure part (FIG. 2(((b)) c), (d)). The thickness of the laminated structure portion may be the total thickness of the thickness of the polarization region 11, the thickness of the cell region 55, and the thickness of the retardation region 75, and the total thickness of the polarization region 11 and the cell region ( 55) and the thickness of the layer interposed between it and the phase difference region 75 may be included. For example, when the polarizer composite 40 has a bonding layer between the polarizer 10 and the retardation layer 71 , the thickness of the layered structure portion is the thickness of the polarization region 11 and the cell region 55 . The thickness of the bonding layer is also added to the total thickness of the thickness and the thickness of the phase difference region 75 . The cured product of the curable resin (X) provided in the polarizer composite 40 includes at least a portion of the through hole 22 of the polarizer 10 , at least a portion of the through hole 52 of the reinforcing material 50 , and a retardation layer 71 . What is necessary is just to provide so that at least a part of the through-hole 72 of ) may be filled. When the polarizer composite 40 has a bonding layer between the polarizer 10 and the retardation layer 71, a cured product of the curable resin (X) may be provided so as to fill at least a part of the through hole formed in the bonding layer. . The cured product of the curable resin (X) is preferably provided so as to fill the entire through-hole 22 of the polarizer 10, the entire through-hole 22 of the polarizer 10, and the through-hole ( 52) It is more preferable to provide so as to fill the entirety of the through-holes 72 of the retardation layer 71, and the entire through-holes of the bonding layer.

The thickness of the layered structure portion including the polarization region 11, the cell region 55, and the retardation region 75 in the polarizer composite 40 is preferably 30 μm or less, more preferably 25 μm or less, 20 It is more preferable that it is micrometer or less, 18 micrometers or less may be sufficient, 16 micrometers or less may be sufficient, and it is 2 micrometers or more normally. When the thickness of the laminated structure portion exceeds the above range, workability for preparing a cured product of the curable resin (X) in the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 as described later This is easy to degrade. The thickness can be measured using, for example, a contact-type film thickness measuring device (MS-5C, manufactured by Nikon Corporation). In addition, the thickness of the cell region refers to the height of the cell 51 (length in the direction perpendicular to the open end face of the cell 51 ).

The thickness of the hardened|cured material provided in the polarizer composite 40 is determined as follows. First, in the polarizer composite 40 , the first plane including the surface of the polarization region 11 of the polarizer 10 (the surface opposite to the reinforcing material 50 side) and the retardation region of the retardation layer 71 . A second plane including the surface of (75) (the surface on the side opposite to the side of the reinforcement material 50) is assumed. Next, in the non-polarization region 12 , the first position, which is a position where the shortest distance between the surface of the cured product on the polarizer 10 side and the first plane, is maximized, and the surface of the cured product on the retardation layer 71 side and The second position at which the shortest distance formed by the second plane becomes the maximum is determined. Then, the sum of the shortest distance (dm) from the first position, the shortest distance (dn) from the second position, and the distance (D) between the first plane and the second plane (dm+dn+D) , the thickness of the cured product provided in the polarizer composite 40 .

The thickness of the cured product of the curable resin (X) provided in the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 , and the polarization region 11 and the cell region 55 in the polarizer composite 40 . and a method of determining the thickness in the case where the thicknesses of the laminated structure portion including the phase difference region 75 are different will be described in detail based on FIG. 3 . 3 (a) and (b) are diagrams schematically showing an example of a cross section around the non-polarization region, non-cell region, and non-retardation region of the polarizer composite, in the non-polarization region, non-cell region and non-retardation region It is explanatory drawing for demonstrating the method of determining the thickness of the provided hardened|cured material.

As shown to Fig.3 (a), when the hardened|cured material is provided in the non-polarization area|region 12, the non-cell area|region 56, and the non-retardation area|region 76, it differs from the reinforcement material 50 side of the polarizer 10. A straight line in the non-polarization region 12 along the opposite surface side is assumed to be the first plane 11m. Among the straight lines connecting any point on the first plane 11m and any point on the surface of the cured product provided in the non-polarization region 12 to the shortest distance, the length of the straight line (Fig. 3(a)) The position when "dm") in ) becomes the maximum is made into a 1st position. Next, as shown in FIG. 3A , a straight line indicated by a dashed-dotted line in the non-retardation region 76 along the surface side of the retardation layer 71 on the opposite side to the reinforcing material 50 side is a second Assume a plane 11n. Among the straight lines that are the shortest distance, a straight line connecting any point on the second plane 11n and any point on the surface of the cured product provided in the non-phase difference region 76 is the length of the straight line (Fig. 3(a)). The position at which "dn") in ) becomes the maximum is set as the second position. Here, as shown in Fig. 3A, the surface of the cured product provided in the non-polarization region 12 and the phase difference region 76 is the first plane ( 11m) and the second plane 11n, when present on the inner surface side (reinforcing material 50 side), dm and dn shall be expressed as negative values. In addition, the distance (corresponding to the thickness of a laminated structure part) between the 1st plane 11m and the 2nd plane 11n is D. Then, the thickness of the hardened|cured material provided in the non-polarization area|region 12, the non-cell area|region 56, and the non-retardation area|region 76 shown in Fig.3 (a) is D+dm+dn (dm and dn are negative) value) can be determined.

Moreover, as shown in FIG.3(b), also about the case where hardened|cured material is provided in the non-polarization area|region 12, the non-cell area|region 56, and the non-retardation area|region 76 similarly to the above, the 1st plane 11m ) and the second plane 11n, the thickness of the cured product provided in the non-polarization region 12, the non-cell region 56, and the non-retardation region 76 can be determined. Specifically, first, among the straight lines connecting any point on the first plane 11m and any point on the surface of the cured product provided in the non-polarization region 12 to the shortest distance, the length of the straight line ( Let the position at the time of "dm") in FIG.3(b) become the 1st position. Next, among the straight lines connecting any point on the second plane 11n and any point on the surface of the cured product provided in the non-phase difference region 76 to the shortest distance, the length of the straight line (in FIG. 3 ) The position when "dn") in (b) becomes the maximum is made into a 2nd position. Here, as shown in Fig. 3B, the surface of the cured product provided in the non-polarization region 12 and the phase difference region 76 is the first plane ( 11m) and the second plane 11n, dm and dn are shown as positive values when they exist on the outer surface side (the side opposite to the reinforcing material 50 side). Then, the thickness of the hardened|cured material provided in the non-polarization area|region 12, the non-cell area|region 56, and the non-retardation area|region 76 shown in FIG.3(b) is D+dm+dn (dm and dn are plus) value of ) can be determined.

(polarizer complex (2))

4 : is a schematic sectional drawing which shows typically another example of the polarizer composite of this embodiment. The polarizer composite 41 shown in FIG. 4 further provides the reinforcement material 50 on the polarizer 10 side of the polarizer composite 40 shown in FIG. 1(a), and the reinforcement material 50, the polarizer 10 ), the reinforcing material 50 and the retardation layer 71 in this order. The reinforcing material 50 , the polarizer 10 , and the retardation layer 71 are the same as described above.

The polarizer composite 41, like the polarizer composite 40, can further suppress a decrease in the sensitivity of the camera and a decrease in designability by arranging a printing part such as a camera lens, an icon, or a logo, and the problem described above. can prevent the occurrence of In addition, in the polarizer composite 41, since the reinforcing material 50 is provided on both surfaces of the polarizer 10, cracks and minute cracks in the polarizer 10 that occur when a temperature change or impact is received. I think it can be suppressed.

The thickness of the cured product of the curable resin (X) provided in the polarizer composite 41 includes the polarization region 11 in the polarizer composite 41, the cell region 55 in the two reinforcing materials, and the retardation region 75 It may be the same as the thickness of the laminated structure part (FIG. 4), it may be smaller than the thickness of the said laminated structure part, and it may be larger than the thickness of the said laminated structure part. The thickness of the laminated structure portion may be the total thickness of the thickness of the polarization region 11, the thickness of the two cell regions 55, and the thickness of the retardation region 75, and the total thickness of the polarization region 11 and the cell The thickness of the layer interposed between the region 55 and the phase difference region 75 may be included. For example, when this intervening layer is a bonding layer, the thickness of the laminated structure portion is bonded to the sum of the thickness of the polarization region 11 , the thickness of the two cell regions 55 , and the thickness of the retardation region 75 . The thickness of the layer is also added. When it has a bonding layer, the hardened|cured material of curable resin (X) may just be provided so that at least one part of the through hole formed in the bonding layer may be filled. The cured product of the curable resin (X) provided in the polarizer composite 41 includes at least a portion of each of the through holes 52 of the two reinforcing materials 50, at least a portion of the through holes 22 of the polarizer 10, and What is necessary is just to provide so that at least a part of the through hole 72 of the retardation layer 71 may be filled. It is preferable that the hardened|cured material of curable resin (X) is provided so that the whole through hole 22 of the polarizer 10 may be filled, and the whole through hole 52 of the two reinforcing materials 50 and the polarizer 10 penetrate. It is more preferable to provide so as to fill the entire hole 22 , the entire through hole 72 of the retardation layer 71 , and the entire through hole of the bonding layer.

The thickness of the layered structure portion including the polarization region 11 in the polarizer composite 41, the cell region 55 and the phase difference region 75 in the two reinforcing materials is preferably 30 µm or less, and 25 µm or less More preferably, it is more preferable that it is 20 micrometers or less, 18 micrometers or less may be sufficient, 16 micrometers or less may be sufficient, and it is 2 micrometers or more normally. When the thickness of the laminated structure portion exceeds the above range, workability for preparing a cured product of the curable resin (X) in the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 as described later This is easy to degrade. Each thickness and the measuring method of the thickness are as described above.

What is necessary is just to carry out the thickness of the hardened|cured material provided in the polarizer composite 41 according to the measuring method of the thickness of the hardened|cured material provided in the polarizer composite 40 demonstrated above. Specifically, in the above measurement method, the first plane is the cell region 55 of the reinforcing material 50 provided on the opposite side to the retardation layer 71 side of the polarizer 10 among the two reinforcing materials 50 . What is necessary is just to determine the thickness of the hardened|cured material of curable resin (X) as a plane containing an opening end surface (opening end surface on the opposite side to the polarizer 10 side).

The reinforcing material 50 is applied to a display device or the like in a state included in the polarizer composite 41 . If the inner space of the cell 51 of the reinforcing material 50 is hollow, the visibility of the display device may decrease due to a difference in refractive index between the cell partition wall 53 and the inner space of the cell 51 . In the reinforcing material 50 , when gaps are formed between the plurality of cells 51 as will be described later, the gaps may also cause a decrease in visibility of the display device. Therefore, as described in the polarizer composite 40, the internal space of the cell 51 of the reinforcing material 50 existing between the polarizer 10 and the retardation layer 71 and the space between the plurality of cells 51 A bonding layer interposed between the reinforcing material 50 and the retardation layer 71 is preferably formed in the gap. On the other hand, in the cell region 55 of the reinforcing material 50 provided on the opposite side to the retardation layer 71 side of the polarizer 10 in the polarizer composite 41, the inner space of the cell 51 and the plurality of cells It is preferable that a light-transmitting filler be provided in the gap between (51). These fillers will be described later.

In the present specification, light transmittance refers to a property (transmittance) that transmits 80% or more of visible light in a wavelength range of 400 nm to 700 nm, preferably transmits 85% or more, more preferably transmits 90% or more, 92 % or more is more preferable. The definition of "transmittance" below and the preferable range of the transmittance|permeability with respect to visible light are also the same as above.

(polarizer complex (3))

5 : is a schematic sectional drawing which shows typically still another example of the polarizer composite of this embodiment. The polarizer composite 42 shown in FIG. 5 has the polarizer 10, the retardation layer 71, and the reinforcing material 50 in this order. The polarizer 10 , the retardation layer 71 , and the reinforcing material 50 are the same as described above.

The retardation layer 71 can be formed on one side of the polarizer 10 through a bonding layer (not shown). The polarizer composite 42 may have one retardation layer 71 on one surface side of the polarizer 10, and may have the retardation layer 71 of two or more layers. In the case of having two or more retardation layers, the retardation layers may be laminated with each other through a bonding layer, or a retardation layer may be further formed on the side opposite to the polarizer 10 side of the reinforcing material 50 . The retardation characteristics of the two or more retardation layers may be mutually the same or mutually different. In the polarizer composite 42, when the reinforcing material 50 further has a retardation layer on the opposite side to the polarizer 10 side, the retardation layer may be a retardation layer 71, and the entire retardation layer is composed of a retardation region. (retardation layer which does not have a non-retardation layer) may be sufficient.

The polarizer composite 42 is also similar to the polarizer composite 41 , the non-polarization region 12 of the polarizer 10 , the phase difference region 76 of the retardation layer 71 , and the non-cell region 56 of the reinforcing material 50 . Silver contains the hardened|cured material of an active-energy-ray-curable resin composition (Hereinafter, it may call "curable resin (X).").

Polarizer composite 42, similarly to the polarizer composites 40 and 41, by arranging a printing unit such as a camera lens, icon or logo, it is possible to further suppress a decrease in the sensitivity of the camera and a decrease in designability, The occurrence of the above problems can be suppressed. In addition, in the polarizer composite 42, since the reinforcing material 50 is provided, cracks in the polarizer 10 that occur when a temperature change or an impact is received, and it is thought that it is possible to suppress the progress of fine cracks to large cracks do. In particular, in the polarizer composite 42, since the reinforcing material 50 is provided on the opposite side to the polarizer 10 side of the retardation layer 71, it is thought that it is easy to improve the impact resistance of the polarizer composite 42.

The thickness of the cured product of the curable resin (X) provided in the polarizer composite 42 is the thickness of the layered structure portion including the polarization region 11 , the retardation region 75 and the cell region 55 in the polarizer composite 42 . It may be the same as the thickness (FIG. 5), may be smaller than the thickness of the said laminated structure part, and may be larger than the thickness of the said laminated structure part. The thickness of the laminated structure portion may be the total thickness of the thickness of the polarization region 11, the thickness of the retardation region 75, and the thickness of the cell region 55, and the total thickness of the polarization region 11 and the retardation region ( 75) and the thickness of the layer interposed between the cell region 55 may be included. For example, when this intervening layer is a bonding layer, the thickness of the laminated structure portion is the sum of the thickness of the polarization region 11, the thickness of the cell region 55, and the thickness of the retardation region 75 to the thickness of the bonding layer. Thickness is also added. When it has a bonding layer, the hardened|cured material of curable resin (X) may just be provided so that at least one part of the through hole formed in the bonding layer may be filled. The cured product of the curable resin (X) provided in the polarizer composite 42 includes at least a portion of the through hole 22 of the polarizer 10 , at least a portion of the through hole 72 of the retardation layer 71 , and a reinforcing material 50 . What is necessary is just to provide so that at least a part of the through hole 52 of ) may be filled. The cured product of the curable resin (X) is preferably provided so as to fill the entire through hole 22 of the polarizer 10 , the entire through hole 22 of the polarizer 10 and the through hole of the retardation layer 71 . (72) It is more preferable to provide so that the whole, the through hole 52 of the reinforcing material 50, and the through hole of the said bonding layer may be filled.

The thickness of the layered structure portion including the polarization region 11, the retardation region 75 and the cell region 55 in the polarizer composite 42 is preferably 30 μm or less, more preferably 25 μm or less, 20 It is more preferable that it is micrometer or less, 18 micrometers or less may be sufficient, 16 micrometers or less may be sufficient, and it is 2 micrometers or more normally. When the thickness of the laminated structure portion exceeds the above range, workability for providing a cured product of the curable resin (X) in the non-polarization region 12 , the phase difference region 76 , and the non-cell region 56 as will be described later This is easy to fall, and a yield is easy to fall. Each thickness and the measuring method of the thickness are as described above.

What is necessary is just to perform the thickness of the hardened|cured material provided in the polarizer composite 42 according to the measuring method of the thickness of the hardened|cured material provided in the polarizer composite 40 demonstrated above. Specifically, in the above measurement method, the second plane is a plane including the open end face of the cell region 55 of the reinforcing material 50 (the open end face on the opposite side to the retardation layer 71 side), , what is necessary is just to determine the thickness of the hardened|cured material of curable resin (X).

The reinforcing material 50 is applied to a display device or the like in a state included in the polarizer composite 42 . Therefore, as described in the polarizer composite 41 , in the cell region 55 of the reinforcing material 50 , a translucent filler is provided in the inner space of the cell 51 and in the gap between the plurality of cells 51 . It is preferable to be

(polarizer complex (4))

6 is a schematic cross-sectional view schematically showing another example of the polarizer composite of the present embodiment. The polarizer composite 43 shown in FIG. 6 further provides a reinforcing material 50 on the polarizer 10 side of the polarizer composite 42 shown in FIG. 5, and the reinforcing material 50, the polarizer 10, and the retardation layer (71) and the reinforcing material (50) in this order. The reinforcing material 50 , the polarizer 10 , and the retardation layer 71 are the same as described above.

The polarizer composite 43, similarly to the polarizer composites 40 to 42, can further suppress a decrease in the sensitivity of the camera and a decrease in designability by arranging a printing unit such as a camera lens, an icon, or a logo, The occurrence of the above problems can be suppressed. In addition, in the polarizer composite 43, since the reinforcing material 50 is provided on one surface side of the polarizer 10 and one surface side of the retardation layer 71, respectively, the polarizer 10 generated when a temperature change or an impact is received. It is considered that it is possible to suppress the cracks and fine cracks from advancing to large cracks, and to easily improve the impact resistance of the polarizer composite 43 .

The thickness of the cured product of the curable resin (X) provided in the polarizer composite 43 includes a cell region 55 , a polarization region 11 , and a retardation region 75 in two reinforcing materials in the polarizer composite 43 . The thickness of the laminated structure part may be the same as the thickness of the laminated structure part (FIG. 6), it may be smaller than the thickness of the said laminated structure part, and it may be larger than the thickness of the said laminated structure part. The thickness of the laminated structure portion may be the total thickness of the two cell regions 55, the thickness of the polarization region 11, and the thickness of the retardation region 75, and the total thickness of the cell region 55 and the polarization region The thickness of the layer interposed between the region 11 and the phase difference region 75 may be included. For example, when this intervening layer is a bonding layer, the thickness of the laminated structure portion is the sum of the thickness of the two cell regions 55 , the thickness of the polarization region 11 , and the thickness of the retardation region 75 . The thickness of the layer is also added. When it has a bonding layer, the hardened|cured material of curable resin (X) may just be provided so that at least one part of the through hole formed in the bonding layer may be filled. The cured product of the curable resin (X) provided in the polarizer composite 43 includes at least a portion of each of the through holes 52 of the two reinforcing materials 50, at least a portion of the through holes 22 of the polarizer 10, and What is necessary is just to provide so that at least a part of the through hole 72 of the retardation layer 71 may be filled. The cured product of the curable resin (X) is preferably provided so as to fill the entire through-hole 22 of the polarizer 10 , and the entire through-hole 52 of the two reinforcing materials 50 and the polarizer 10 penetrate It is more preferable to provide so that the whole hole 22, the whole through hole 72 of the retardation layer 71, and the whole through hole of the said bonding layer may be filled.

The thickness of the laminated structure portion including the cell region 55, the polarization region 11, and the retardation region 75 in the two reinforcing materials in the polarizer composite 43 is preferably 30 μm or less, and is 25 μm or less. More preferably, it is more preferable that it is 20 micrometers or less, 18 micrometers or less may be sufficient, 16 micrometers or less may be sufficient, and it is 2 micrometers or more normally. When the thickness of the laminated structure portion exceeds the above range, workability for preparing a cured product of the curable resin (X) in the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 as described later This is easy to degrade. Each thickness and the measuring method of the thickness are as described above.

What is necessary is just to perform the thickness of the hardened|cured material provided in the polarizer composite 43 according to the measuring method of the thickness of the hardened|cured material provided in the polarizer composite 40 demonstrated above. Specifically, in the above measurement method, the first plane and the second plane are set as follows, and the thickness of the cured product of the curable resin (X) may be determined. The first plane is set on the open end face of the cell region 55 of the reinforcing material 50 provided on the opposite side to the retardation layer 71 side of the polarizer 10 (the polarizer 10 side) among the two reinforcing materials 50 . is a plane including the opening end face on the opposite side). The second plane is set on the open end face of the cell region 55 of the reinforcing material 50 provided on the opposite side to the polarizer 10 side of the retardation layer 71 (retardation layer 71 side) among the two reinforcing materials 50 . It is set as the plane including the opening end surface on the opposite side to

The reinforcing material 50 is applied to a display device or the like in a state included in the polarizer composite 43 . Therefore, as described in the polarizer composite 41 , in the cell region 55 of the reinforcing material 50 , a translucent filler is provided in the inner space of the cell 51 and in the gap between the plurality of cells 51 . It is preferable to be

The polarizer composites 40 to 43 described above may be circularly polarizing plates. In this case, the retardation region 75 of the retardation layer 71 may have retardation characteristics functioning as a quarter wave plate. When the polarizer composites 40 to 43 are circularly polarizing plates, two or more retardation layers may be provided on one surface side of the polarizer 10 . For example, on one surface side of the polarizer 10, the retardation characteristics of the retardation region 75 are [a] in the order of 1/2 wave plate and 1/4 wave plate, [b] 1/4 wave plate with reverse wavelength dispersion and The retardation layers 71 may be laminated so as to be arranged in the order of the positive C plate or [c] the positive C plate and the quarter wave plate having reverse wavelength dispersion.

The polarizer composites 40 to 43 may be a sheet body or an elongate body having a length to be rolled into a roll shape at the time of storage, transport, or the like. The planar shape and size of the polarizer composites 40 to 43 are not particularly limited.

(polarization area)

The polarization region 11 of the polarizer 10 preferably exhibits absorption dichroism in the wavelength range of 380 nm to 780 nm. The polarizer 10 has a property of absorbing linearly polarized light having an oscillation plane parallel to the absorption axis and transmitting linearly polarized light having an oscillation plane perpendicular to the absorption axis (parallel to the transmission axis), and this property is mainly polarized light It can be obtained by the area (11).

The polarization region 11 is, for example, in a hydrophilic polymer film such as a polyvinyl alcohol-based film, a partially formalized polyvinyl alcohol-based film, or an ethylene/vinyl acetate copolymer-based partially saponified film, and a dichroic substance such as iodine or a dichroic dye. This adsorption/orientation; What the dichroic substance adsorbed and orientated to what orientated the polyene-type orientation film or liquid crystal compound, such as a dehydration-processed material of polyvinyl alcohol, and a dehydrochloric acid-treated product of polyvinyl chloride; etc. can be used. Especially, it is preferable to use the thing obtained by dyeing a polyvinyl alcohol-type film with iodine and uniaxially stretching as a thing excellent in an optical characteristic.

First, the manufacturing method of the polyvinyl alcohol-type film used as the preferable polarization area|region 11 is briefly demonstrated about what was obtained by dyeing|staining with iodine and uniaxially stretching.

Dyeing with iodine is performed by, for example, immersing a polyvinyl alcohol-based film in an aqueous iodine solution. It is preferable that the draw ratio of uniaxial stretching is 3 to 7 times. Extending|stretching may be performed after dyeing process, and may be performed while dyeing|staining. Moreover, you may dye|dye after extending|stretching.

A swelling process, a crosslinking process, a washing process, a drying process, etc. are performed to a polyvinyl alcohol-type film as needed. For example, by immersing the polyvinyl alcohol-based film in water and washing with water before dyeing, it is possible to not only wash the surface of the polyvinyl alcohol-based film from contamination and anti-blocking agent, but also to swell the polyvinyl alcohol-based film to prevent dyeing unevenness, etc. can do.

Stretching treatment, dyeing treatment, crosslinking treatment (boric acid treatment), water washing treatment, and drying treatment of the polyvinyl alcohol-based resin film may be performed according to, for example, the method described in Japanese Patent Application Laid-Open No. 2012-159778. In the method described in this document, the polyvinyl alcohol-type resin layer used as the polarization area|region 11 is formed by coating of the polyvinyl alcohol-type resin with respect to a base film. At this time, the used base film can also be used as the 1st support layer 25 mentioned later.

Then, the polarization|polarized-light area|region 11 which the dichroic dye was adsorb|sucked and orientated to what orientated the liquid crystal compound is demonstrated briefly. As the polarization region 11 in this case, for example, Japanese Patent Application Laid-Open No. 2013-37353, Japanese Patent Application Laid-Open No. 2013-33249, Japanese Patent Application Laid-Open No. 2016-170368, and Japanese Patent Application Laid-Open No. 2017-83843 As described in publications, etc., in the cured film in which the liquid crystal compound superposed|polymerized, you may use what the dichroic dye orientated. As a dichroic dye, what has absorption within the range of wavelength 380-800 nm can be used, and it is preferable to use organic dye. As a dichroic dye, an azo compound is mentioned, for example. A liquid crystal compound is a liquid crystal compound which can superpose|polymerize with orientation, and may have a polymeric group in a molecule|numerator. The cured film in which such a liquid crystal compound superposed|polymerized may be formed on the base film, and in that case, the said base film can also be used as the 1st support layer 25 mentioned later.

After producing the polarizing film used for the polarization area|region 11 as mentioned above, it is also preferable to form the non-polarization area|region 12 by hole processing, and to form the polarizer 10. In this specification, the polarizing film formed only with such a polarization area|region 11 may be called the raw material polarizer 20.

The visibility correction polarization degree Py of the polarization region 11 is preferably 80% or more, more preferably 90% or more, still more preferably 95% or more, and particularly preferably 99% or more. The single transmittance Ts of the polarization region 11 is usually less than 50%, and may be 46% or less. The single transmittance (Ts) of the polarization region 11 is preferably 39% or more, more preferably 39.5% or more, still more preferably 40% or more, and particularly preferably 40.5% or more.

The single transmittance (Ts) is the Y value which measured based on the 2 degree field of view (C light source) of JIS Z8701, and performed the visibility correction|amendment. Visibility corrected polarization degree (Py) and single transmittance (Ts) can be measured using, for example, an ultraviolet and visible spectrophotometer (manufactured by Nippon Bunko Co., Ltd., product name: V7100), and the parallel transmittance Tp and orthogonal transmittance to which visibility has been corrected Based on Tc, it is calculated|required by the following formula.

Py[%]={(Tp-Tc)/(Tp+Tc)} ^1/2 × 100

(non-polarization area)

Generally, "non-polarization" refers to light having no observable regularity in an electric field component. In other words, unpolarized light is random light in which no dominant specific polarization state is observed. In addition, "partially polarized light" refers to light in an intermediate state between polarized light and unpolarized light, and refers to light in which at least one of linearly polarized light, circularly polarized light, and elliptically polarized light and unpolarized light are mixed. The non-polarization area|region 12 in the polarizer 10 means that the light (transmission light) which permeate|transmits the said non-polarization area|region 12 becomes non-polarization|polarized-light or partially polarized light. In particular, a non-polarization region in which transmitted light is non-polarization is preferable.

The non-polarization region 12 of the polarizer 10 is a region surrounded by the polarization region 11 in plan view.

The non-polarization area|region 12 contains the hardened|cured material of curable resin (X). In the non-polarization region 12, a cured product of an active energy ray-curable resin composition containing a curable resin (X) described later is provided in a through hole formed in a polarizer (raw material polarizer 20) formed only by the polarization region 11. it is preferable The non-polarization region 12 has light-transmitting properties.

When the non-polarization area|region 12 of the polarizer 10 has translucency, predetermined|prescribed transparency can be ensured in the non-polarization area|region 12. Thereby, when applying the polarizer composites 40-43 to a display device, it makes it correspond to the non-polarization area|region 12, and by arranging printing parts, such as a camera lens, an icon, or a logo, the fall of the sensitivity of a camera, or A decrease in designability can be suppressed.

Although the planar shape of the non-polarization area|region 12 is not specifically limited, Circle; oval; Jang Won-Hyeong; polygons such as triangles or squares; At least one corner of the polygon is rounded (a shape having R), and may be a rounded polygon or the like.

It is preferable that the diameter of the non-polarization area|region 12 is 0.5 mm or more, 1 mm or more may be sufficient as it, 2 mm or more may be sufficient as it, and 3 mm or more may be sufficient as it. It is preferable that the diameter of the non-polarization area|region 12 is 20 mm or less, 15 mm or less may be sufficient as it, 10 mm or less may be sufficient as it, and 7 mm or less may be sufficient as it. The diameter of the non-polarization area|region 12 means the length in the longest straight line among the straight lines which connect arbitrary two points of the outer periphery of the said non-polarization area|region 12.

The thickness of the hardened|cured material of curable resin (X) provided in the non-polarization area|region 12 may be the same as the thickness of the polarization area|region 11, and may be smaller than the thickness of the polarization area|region 11, More than the thickness of the polarization area|region 11 big is good As mentioned above, it is preferable that the hardened|cured material of curable resin (X) provided in the non-polarization area|region 12 may be provided so that the through hole 22 whole may be filled.

What is necessary is just to perform the thickness of the hardened|cured material provided in the non-polarization area|region 12 according to the measuring method of the thickness of the hardened|cured material provided in the polarizer composite 40 demonstrated above. Specifically, in the above measurement method, the second plane is the surface of the polarization region 11 of the polarizer 10 on the opposite side to the surface included in the first plane, and the curable resin (X) You just need to determine the thickness of the cured product.

(cell area)

The cell region 55 is a region in which the cells 51 of the reinforcing material 50 exist. As shown in Fig. 1B, the cell 51 has a hollow columnar (tubular) structure surrounded by cell partition walls 53 that partition the cell 51, and both ends of the columnar structure in the axial direction This open end face is formed. The cell 51 has, as an open end face, a first open end face disposed on a side relatively close to the polarizer 10 of the polarizer complexes 40 to 43, and a second open end face disposed on a relatively far side. has In the cell region 55, at least one of the first open end face and the second open end face should be arranged so as to face the polarizer 10, and both the first open end face and the second open end face have a polarizer ( 10) is preferably arranged to face.

Although the shape of the opening of the cell 51 of the cell region 55 is not particularly limited, it is preferably a polygon, a circle, or an ellipse. Although it is preferable that the shape of the opening of a 1st open end surface and the shape of the opening of a 2nd open end surface are the same shape of the same size, different shapes may be sufficient and the same shape and size may differ. In addition, the shapes of the openings of the plurality of cells 51 in the cell region 55 may be the same as or different from each other.

It is preferable that the plurality of cells 51 included in the cell region 55 are arranged so that the openings of the cells 51 are adjacent to each other in a plan view of the end surface of the opening. In the case of the plurality of cells 51 in plan view of the end faces of the openings, for example, as in the case where the openings of the cells 51 shown in FIG. They may be arranged so as to be arranged. Alternatively, in the case where the opening of the cells 51 has a circular shape or the like in a plan view of the opening end face of the plurality of cells 51 , a part of the cell partition walls 53 of the plurality of cells 51 are in contact with each other. and may be arranged so as to be disposed with a gap between the plurality of cells 51 .

In the cell region 55 of the reinforcing material 50, for example, as shown in FIG. 40 to 43), it is preferable to have a honeycomb structure in which a plurality of cells 51 are arranged so that the openings are arranged adjacent to each other without gaps.

Although the size of the opening of the cell 51 is not particularly limited, it is preferable to have a diameter smaller than the diameter of the non-polarization region 12 . The diameter of the cell 51 is preferably 3 mm or less, may be 2 mm or less, may be 1 mm or less, and is usually 0.1 mm or more, and may be 0.5 mm or more. The diameter of the opening of the cell 51 is the length of the longest straight line connecting two arbitrary points on the outer periphery of the opening.

The height of the cell 51 (length in the direction perpendicular to the open end face of the cell 51) is usually 0.1 μm or more, may be 0.5 μm or more, may be 1 μm or more, may be 3 μm or more, and Usually 15 micrometers or less, 13 micrometers or less may be sufficient, and 10 micrometers or less may be sufficient.

It is preferable that the cell partition walls 53 dividing the cells 51 of the cell region 55 have light-transmitting properties.

The line width of the cell partition wall 53 of the reinforcing material 50 is, for example, 0.05 mm or more, may be 0.1 mm or more, may be 0.5 mm or more, may be 0.5 mm or more, may be 1 mm or more, and is usually 5 mm or less and 3 mm or less. good night.

The cell partition walls 53 of the cell region 55 can be formed of, for example, a resin material or an inorganic oxide, and are preferably formed of a resin material. Curable resins, such as a thermoplastic resin, a thermosetting resin, and an active energy ray-curable resin, etc. are mentioned as a resin material. As a resin material, For example, the said curable resin (X); The thermoplastic resin etc. illustrated as a thermoplastic resin used for the said filler are mentioned. As an inorganic oxide, _a silicon oxide (SiO2), aluminum oxide, etc. are mentioned.

(non-cell area)

The non-cell region 56 is a region where the cells 51 of the reinforcing material 50 do not exist, and as described above, the cell partition walls 53 constituting the cell 51 and the cell partition walls 53 are surrounded by a hollow columnar shape. (Cylinder) is an area where space does not exist. The non-cell region 56 is provided so as to cut out all or a part of the plurality of cells 51 , and has a through hole 52 formed in a region corresponding to the through hole 22 of the polarizer 10 . The non-cell region 56 may include a cured product of the curable resin (X) in the through hole 52 .

The planar shape and diameter of the non-cell area|region 56 are not specifically limited, The shape and diameter illustrated as a planar shape of the non-polarization area|region 12 are mentioned. It is preferable that the planar shape and diameter of the non-cell region 56 are the same as the planar shape and diameter of the non-polarization region 12 .

(phase difference area)

The retardation layer 71 has a retardation characteristic, and this property can be mainly obtained by the retardation region 75 . At least one of the in-plane retardation value R0 and the thickness direction retardation value Rth at a wavelength of 590 nm in the retardation region 75 is more than 40 nm, and each independently may be 100 nm or more, or 500 nm or more. , 1000 nm or more may be sufficient, and it is 15000 nm or less normally.

The retardation region 75 may have retardation characteristics functioning as, for example, a quarter-wave plate, a half-wave plate, a quarter-wave plate having reverse wavelength dispersion, or a positive C plate. As described above, a plurality of types of retardation layers having mutually different retardation characteristics may be stacked to form the retardation region 75 .

The retardation region 75 can be a region formed of a raw material retardation layer, which is a retardation region as a whole, which will be described later. What is necessary is just to set what laminated|stacked multiple types of retardation layers from mutually different retardation characteristics into the phase difference area|region 75 what laminated|stacked multiple types of mutually different types of retardation layers as a raw material retardation layer. Therefore, the retardation region 75 is formed of a material constituting a raw material retardation layer to be described later, and specifically may contain a thermoplastic resin. The retardation region can be formed by, for example, a stretched film obtained by uniaxially stretching or biaxially stretching a thermoplastic resin, or a polymerization cured layer of a polymerizable liquid crystalline compound.

The thickness of the phase difference region 75 is preferably 15 µm or less, may be 13 µm or less, may be 10 µm or less, may be 8 µm or less, may be 5 µm or less, and is usually 1 µm or more.

(non-phase difference region)

The non-retardation region 76 of the retardation layer 71 is a region surrounded by the retardation region 75 in plan view. The in-plane retardation value R0 and the thickness direction retardation value Rth at a wavelength of 590 nm in the non-retardation region 76 are 40 nm or less, and each independently may be 35 nm or less, or 30 nm or less, 20 nm or less may be sufficient and 0 nm may be sufficient as it.

The non-retardation area|region 76 can contain the hardened|cured material of curable resin (X) in the through-hole 72 enclosed by the retardation area|region 75 in planar view. The thickness of the cured product of the curable resin (X) provided in the non-retardation region 76 may be the same as the thickness of the retardation region 75 or may be smaller than the thickness of the non-retardation region 76, It may be larger than the thickness. As mentioned above, it is preferable that the hardened|cured material of the curable resin (X) provided in the non-retardation area|region 76 may be provided so that the whole through hole 72 may be filled. When applying the polarizer composites 40 to 43 to a display device by providing such a non-phase difference area|region 76 corresponding to the non-polarization area|region 12 so that it may mention later, the non-polarization area|region 12 and By arranging printing parts, such as a camera lens, an icon, or a logo, in correspondence with the non-phase difference area|region 76, the fall of the sensitivity of a camera and the fall of designability can be suppressed.

What is necessary is just to perform the thickness of the hardened|cured material provided in the specific phase difference area|region 76 according to the measuring method of the thickness of the hardened|cured material provided in the polarizer composite 40 demonstrated above. Specifically, in the above measurement method, the first plane is the surface of the retardation region 75 of the retardation layer 71 on the opposite side to the surface included in the second plane, and the curable resin (X ) to determine the thickness of the cured product.

The planar shape and diameter of the non-retardation area|region 76 are not specifically limited, The shape and diameter illustrated as a planar shape of the non-polarization area|region 12 are mentioned. It is preferable that the planar shape and diameter of the non-phase difference region 76 are the same as the planar shape and diameter of the non-polarization region 12 , respectively.

(Active energy ray-curable resin (curable resin (X)))

The non-polarization region 12, the non-cell region 56 and the non-retardation region 76 in the polarizer composites 40 to 43 are prepared with a cured product of an active energy ray-curable resin (curable resin (X)) as described above. It is an area|region, Preferably, it forms with the active-energy-ray-curable resin composition (henceforth "curable resin composition" may be called) containing the said curable resin (X). Curable resin (X) contained in curable resin composition hardens|cures by irradiation of active energy rays, such as an ultraviolet-ray, a visible light, an electron beam, and X-ray. It is preferable that curable resin (X) is ultraviolet curable resin hardened|cured by irradiation of an ultraviolet-ray. An active energy ray hardening-type adhesive agent may be sufficient as curable resin composition containing curable resin (X), and in this case, it is more preferable that it is an ultraviolet curable adhesive agent.

It is preferable that curable resin composition is a solvent-free type. The solvent-free type means that no solvent is actively added, and specifically, the solvent-free type curable resin composition has a solvent content of 5 weight percent with respect to 100 weight % of the curable resin (X) contained in the curable resin composition. % or less.

It is preferable that curable resin (X) contains an epoxy compound. An epoxy compound is one or more in a molecule|numerator, Preferably it is a compound which has two or more epoxy groups. As an epoxy compound, an alicyclic epoxy compound, an aliphatic epoxy compound, a hydrogenated epoxy compound (glycidyl ether of the polyol which has an alicyclic ring), etc. are mentioned. One type may be sufficient as the epoxy compound contained in curable resin (X), and 2 or more types may be sufficient as it.

It is preferable that content of an epoxy compound is 40 weight% or more with respect to 100 weight% of curable resin (X), It is more preferable that it is 50 weight% or more, It is still more preferable that it is 60 weight% or more. Content of the epoxy compound may be 100 weight% or less with respect to 100 weight% of curable resin (X), 90 weight% or less may be sufficient, Furthermore, 80 weight% or less may be sufficient and 75 weight% or less may be sufficient as it.

The epoxy equivalent of the epoxy compound is usually in the range of 40 to 3000 g/equivalent, preferably 50 to 1500 g/equivalent. When an epoxy equivalent exceeds 3000 g/equivalent, compatibility with the other component contained in curable resin (X) may fall.

It is preferable that the epoxy compound contained in curable resin (X) contains an alicyclic epoxy compound. An alicyclic epoxy compound is an epoxy compound which has one or more epoxy groups couple|bonded with the alicyclic in a molecule|numerator. "The epoxy group couple|bonded with the alicyclic" means the oxygen atom -O- of bridge|crosslinking in the structure shown to a following formula. In the following formula, m is an integer of 2 to 5.

In the formula (CH ₂ ) _m in which one or more hydrogen atoms have been removed, the compound in which the group is bonded to another chemical structure may be an alicyclic epoxy compound. (CH ₂ ) One or a plurality of hydrogen atoms in _m may be suitably substituted with a straight-chain alkyl group such as a methyl group or an ethyl group. Among the alicyclic epoxy compounds, the epoxy compound which has an oxabicyclohexane ring (the thing of m=3 in the said formula) and the oxabicycloheptane ring (the thing of m=4 in the said formula) is a polarizer (10) of the polarization region 11 , the retardation region 75 of the retardation layer 71 , and the cell region 55 of the reinforcing material 50 , the non-polarization region 12 , the non-retardation region 76 , and the non-cell region 56 . ), it is preferably used from the viewpoint of imparting excellent adhesiveness to the cured product of the curable resin (X). Although the alicyclic epoxy compound used preferably is specifically illustrated below, it is not limited to these compounds.

[a] Epoxycyclohexylmethyl epoxycyclohexanecarboxylates represented by the following formula (IV):

[In formula (IV), R ⁸ and R ⁹ each independently represent a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms.]

[b] Epoxycyclohexanecarboxylates of alkanediol represented by the following formula (V):

[In formula (V), R ¹⁰ and R ¹¹ each independently represent a hydrogen atom or a linear alkyl group having 1 to 5 carbon atoms, and n represents an integer of 2 to 20.]

[c] Epoxycyclohexylmethyl esters of dicarboxylic acids represented by the following formula (VI):

[In formula (VI), R ¹² and R ¹³ each independently represent a hydrogen atom or a linear alkyl group having 1 to 5 carbon atoms, and p represents an integer of 2 to 20.]

[d] Epoxycyclohexylmethyl ethers of polyethylene glycol represented by the following formula (VII):

[In formula (VII), R ¹⁴ and R ¹⁵ each independently represent a hydrogen atom or a linear alkyl group having 1 to 5 carbon atoms, and q represents an integer of 2 to 10.]

[e] Epoxycyclohexylmethyl ethers of alkanediol represented by the following formula (VIII):

[In formula (VIII), R ¹⁶ and R ¹⁷ each independently represent a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms, and r represents an integer of 2 to 20.]

[f] a diepoxytrispiro compound represented by the following formula (IX):

[In formula (IX), R ¹⁸ and R ¹⁹ each independently represent a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms.]

[g] a diepoxy monospiro compound represented by the following formula (X):

[In formula (X), R ²⁰ and R ²¹ each independently represent a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms.]

[h] Vinylcyclohexene diepoxides represented by the following formula (XI):

[In formula (XI), R ²² represents a hydrogen atom or a linear alkyl group having 1 to 5 carbon atoms.]

[i] Epoxycyclopentyl ethers represented by the following formula (XII):

[In formula (XII), R ²³ and R ²⁴ each independently represent a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms.]

[j] diepoxytricyclodecanes represented by the following formula (XIII):

[In formula (XIII), R ²⁵ represents a hydrogen atom or a straight-chain alkyl group having 1 to 5 carbon atoms.]

As an aliphatic epoxy compound, the polyglycidyl ether of an aliphatic polyhydric alcohol or its alkylene oxide adduct is mentioned. More specifically, diglycidyl ether of 1,4-butanediol; diglycidyl ether of 1,6-hexanediol; triglycidyl ether of glycerin; triglycidyl ether of trimethylolpropane; diglycidyl ether of polyethylene glycol; diglycidyl ether of propylene glycol; and polyglycidyl ethers of polyether polyols obtained by adding one or more alkylene oxides (ethylene oxide or propylene oxide) to an aliphatic polyhydric alcohol such as ethylene glycol, propylene glycol or glycerin.

A hydrogenated epoxy compound is obtained by making epichlorohydrin react with the alicyclic polyol obtained by performing a hydrogenation reaction on the aromatic ring of an aromatic polyol. As an aromatic polyol, Bisphenol type compounds, such as bisphenol A, bisphenol F, and bisphenol S; novolak-type resins such as phenol novolac resins, cresol novolac resins, and hydroxybenzaldehyde phenol novolac resins; and polyfunctional compounds such as tetrahydroxydiphenylmethane, tetrahydroxybenzophenone and polyvinylphenol. As a preferable thing among a hydrogenation epoxy compound, the diglycidyl ether of hydrogenated bisphenol A is mentioned.

Curable resin (X) may contain a (meth)acrylic-type compound etc. with active energy ray-curable compounds, such as an epoxy compound. By using the (meth)acrylic compound together, the polarization region 11 of the polarizer 10, the phase difference region 75 of the retardation layer 71, and the cell region 55 of the reinforcing material 50, and the non-polarization region (12), the effect of increasing the adhesion between the cured product of the curable resin (X) forming the non-cell region 56 and the non-retardation region 76, and the hardness and mechanical strength of the cured product of the curable resin (X) is expected Furthermore, it becomes possible to perform adjustment of the viscosity of curable resin (X), a curing rate, etc. more easily. "(meth)acryl" means at least one selected from the group which consists of acryl and methacryl.

It is preferable that curable resin composition containing curable resin (X) contains a polymerization initiator. As a polymerization initiator, cationic polymerization agents, such as a photocationic polymerization agent, and a radical polymerization initiator are mentioned. A photocationic polymerization initiator generates a cationic species or a Lewis acid by irradiation of active energy rays, such as a visible light ray, an ultraviolet-ray, X-ray, an electron beam, and initiates the polymerization reaction of an epoxy group. As described above, the curable resin (X) is preferably an ultraviolet curable resin that is cured by irradiation with ultraviolet rays, and the curable resin (X) preferably contains an alicyclic epoxy compound. Therefore, the polymerization initiator in this case is , it is preferable to generate a cationic species or a Lewis acid by irradiation with ultraviolet rays.

The curable resin composition further contains additives such as a photosensitizer, a polymerization accelerator, an ion trapping agent, an antioxidant, a chain transfer agent, a tackifier, a thermoplastic resin, a filler, a flow regulator, a plasticizer, an antifoaming agent, an antistatic agent, a leveling agent can do.

(filling)

The filler that may be provided in the reinforcing material 50 is not particularly limited as long as it has light-transmitting properties and can fill the inner space of the cell 51 of the reinforcing material 50 . The filler is preferably a material different from the material constituting the cell partition walls 53 of the reinforcing material 50 , and preferably contains a resin material. Examples of the resin material include at least one selected from the group consisting of a thermoplastic resin, a thermosetting resin, and a curable resin such as an active energy ray-curable resin, and may be an adhesive or an adhesive.

Examples of the thermoplastic resin include polyolefin-based resins such as chain polyolefin-based resins (polypropylene-based resins, etc.) and cyclic polyolefin-based resins (norbornene-based resins, etc.); Cellulose ester-type resin, such as a triacetyl cellulose and a diacetyl cellulose; polyester-based resins such as polyethylene terephthalate, polyethylene naphthalate, and polybutylene terephthalate; polycarbonate-based resin; (meth)acrylic resin; polystyrene-based resin; polyether-based resin; polyurethane-based resin; polyamide-based resin; polyimide-based resin; A fluorine-type resin etc. are mentioned.

As curable resin, the said curable resin (X) is mentioned, for example.

An adhesive expresses adhesiveness by adhering itself to a to-be-adhered body, and is what is called a so-called pressure-sensitive adhesive. Examples of the pressure-sensitive adhesive include those containing, as a main component, a polymer such as a (meth)acrylic polymer, a silicone polymer, a polyester polymer, a polyurethane polymer, a polyether polymer, or a rubber polymer.

In this specification, a main component means the component containing 50 mass % or more in the total solid of an adhesive. An active energy ray hardening type or a thermosetting type may be sufficient as an adhesive, and it may adjust a crosslinking degree and adhesive force by active energy ray irradiation or heating.

An adhesive agent contains a sclerosing|hardenable resin component, and is an adhesive agent other than a pressure-sensitive adhesive agent (adhesive agent). Examples of the adhesive include a water-based adhesive in which a curable resin component is dissolved or dispersed in water, an active energy ray-curable adhesive containing an active energy ray-curable compound, and a thermosetting adhesive.

As the adhesive, a water-based adhesive commonly used in the technical field of polarizing plates may be used.

Examples of the resin component contained in the water-based adhesive include polyvinyl alcohol-based resins and urethane-based resins. As an active energy ray-curable adhesive agent, the composition hardened|cured by irradiation of active energy rays, such as an ultraviolet-ray, a visible light, an electron beam, and X-ray, is mentioned. As an active energy ray-curable adhesive agent, you may use the curable resin composition containing the said curable resin (X). Examples of the thermosetting adhesive include those containing an epoxy-based resin, a silicone-based resin, a phenol-based resin, a melamine-based resin, and the like as a main component.

(Method for producing polarizer complex (1))

7 and 8 are schematic cross-sectional views schematically showing an example of the manufacturing method of the polarizer composite of this embodiment. In Figs. 7 and 8, the case of obtaining the polarizer composite 40 shown in Fig. 1 (a) is shown, but the polarizer complex 40 shown in Figs. 2 (b) and (d) is also shown below. It can be manufactured by the method described in The polarizer composite 40, for example, has the same visibility corrected polarization degree Py as a whole and the raw polarizer 20 (FIG. 7(a)) that does not have the non-polarization region 12, The polymerization cured layer 85 (FIG. 7(b)), which is a phase difference region, and either the raw material polarizer 20 or the polymerization cured layer 85, consists of only the cell region 55 and a non-cell region 56 . Hereinafter, a case in which the structure 58 is formed in the raw material polarizer 20 will be described as an example, but the structure 58 may be formed in the polymerization cured layer 85 serving as the raw material retardation layer.

Since the raw polarizer 20 is formed only in the polarization region 11 of the polarizer 10, the thickness of the raw polarizer 20 is 15 μm or less, which is the same thickness as the polarization region 11 of the polarizer 10. desirable. Since the cured polymerization layer 85 becomes the retardation region 75 of the retardation layer 71 , the thickness of the cured polymerization layer 85 is preferably the same thickness as the retardation region 75 of the retardation layer 71 . do. Since the structure 58 becomes the cell region 55 of the reinforcement 50, the thickness of the structure 58 (the height of the cell 51) is the thickness of the cell region 55 of the reinforcement 50 (cell 51)) and preferably the same.

The polarizer composite 40 can be manufactured, for example, in the following process. First, on one surface of the raw material polarizer 20, on one surface of the raw material polarizer 20, a first support layer 25 is formed so as to be peelable with respect to the raw material polarizer 20, and then the other side of the raw material polarizer 20 By forming the structure 58 on the side surface, the first laminate 31 is prepared (FIG. 7(a)). The structure 58 can be obtained by, for example, forming the cell partition walls 53 dividing the cells 51 on the surface of the raw material polarizer 20 using a resin material or an inorganic oxide.

Although it does not specifically limit as a method of forming the cell partition 53 using a resin material, For example, Printing methods, such as inkjet printing, screen printing, gravure printing; photolithography; The coating method using a nozzle, a die|dye, etc. are mentioned. In the said method, you may use the resin composition which mixed the resin material with a solvent, an additive, etc. As an additive, a leveling agent, antioxidant, a plasticizer, a tackifier, organic or inorganic filler, a pigment, antioxidant, a ultraviolet absorber, antioxidant, etc. are mentioned. The cell partition walls 53 may be formed by subjecting the printed or applied resin composition to a treatment for solidification or curing as needed.

Although it does not specifically limit as a method of forming the cell partition 53 using an inorganic oxide, For example, it can form by vapor-depositing an inorganic oxide.

A polymerizable liquid crystal compound is polymerized and cured on the base layer 84 to prepare a polymerizable cured layer 80 with a base layer in which a polymerization cured layer 85 that is the entire retardation region is formed on the base layer 84 (FIG. 7(b)).

On the side of the structure 58 of the prepared first laminate 31, the polymerization cured layer 85 side of the polymerization cured layer 80 with a base layer is laminated through a bonding layer (not shown) (Fig. 7(c)). )). At this time, it is preferable that the bonding layer is formed so as to enter the inner space of the cell 51 of the structure 58 and the gap between the plurality of cells 51 . Thereby, a second laminate 32 is obtained in which the base layer 84, the polymerization cured layer 85, the structure 58, the raw material polarizer 20, and the first support layer 25 are laminated in this order ( 7(c)). With respect to the second laminate 32, a through hole 33 penetrating in the lamination direction is formed by punching, cutout, cutting or laser cutting (FIG. 7(d)), and the first supporting layer 25 is formed. It peels to obtain the 3rd laminated body 34 (FIG.8(a)). Thereby, the perforated polarizer 21 in which the through-hole 22 is formed in the raw material polarizer 20 , the perforated structure 59 in which the through-hole 52 is formed in the structure 58 , and the polymerization cured layer 85 are penetrated The aperture retardation layer 81 in which the hole 72 was formed is obtained.

Then, the 2nd support layer 26 is laminated|stacked on the side of the aperture polarizer 21 of the 3rd laminated body 34 (FIG.8(b)), and the base material layer 84 is peeled (FIG.8(c)). )). The second support layer 26 is formed so as to block one side of the through hole 22 of the apertured polarizer 21 . After that, the through hole 22 of the perforated polarizer 21 , the through hole 52 of the perforated structure 59 , and the through hole 72 of the perforated retardation layer 81 include a curable resin (X). By filling a resin composition and irradiating an active energy ray, the curable resin (X) in the through-holes 22, 52, 72 is cured, and the through-hole 22 of the perforated polarizer 21, the perforated structure 59 ), and a cured product of the curable resin (X) is formed in the through-holes 52 and the through-holes 72 of the pore retardation layer 81 (FIG. 8(d)). Thereby, the polarizer composite 40 is obtained on the 2nd support layer 26 .

In the polarizer composite 40 , the polarizer 10 , the reinforcing material 50 , and the retardation layer 71 are laminated in this order on the second support layer 26 . After forming hardened|cured material, the 2nd support layer 26 may peel.

As for the obtained polarizer 10, the area|region other than the through-hole 22 of the apertured polarizer 21 became the polarization area|region 11, and the area|region of the through-hole 22 in which the hardened|cured material was provided became the non-polarization area|region 12. . In the obtained reinforcing material 50 , the region other than the through hole 52 of the perforated structure 59 became the cell region 55 , and the region of the through hole 52 provided with the cured product became the non-cell region 56 . In the obtained retardation layer 71 , the region other than the through hole 72 of the open hole retardation layer 81 becomes the retardation region 75 , and the region of the through hole 72 provided with the cured product is the non-retardation region 76 . it became

Instead of the above method, the polarizer composite 40 shown in Fig. 1 may be manufactured, for example, as follows. In the following, the case of obtaining the polarizer composite 40 shown in Fig. 1 (a) is shown, but the polarizer composite 40 shown in Figs. can be manufactured by 7(c) and 7(d), a through hole 33 penetrating in the lamination direction is formed in the second laminate 32 by punching, cutout, cutting or laser cutting. Then, the base material layer 84 is peeled. Then, a 3rd support layer is laminated|stacked on the side (open hole retardation layer 81 side) exposed by peeling the base material layer 84, and the 1st support layer 25 is peeled. After that, the through hole 22 of the perforated polarizer 21 , the through hole 52 of the perforated structure 59 , and the through hole 72 of the perforated retardation layer 81 include a curable resin (X). By filling a resin composition and irradiating an active energy ray, the curable resin (X) in the through-holes 22, 52, 72 is cured, and the through-hole 22 of the perforated polarizer 21, the perforated structure 59 ), a cured product of the curable resin (X) is formed in the through-holes 52 and the through-holes 72 of the opening retardation layer 81 . Thereby, the polarizer composite 40 is obtained on the 3rd support layer. In the polarizer composite 40 , a retardation layer 71 , a reinforcing material 50 , and a polarizer 10 are laminated in this order on a third support layer. After forming hardened|cured material, you may peel a 3rd support layer.

The method of filling the through hole 22 of the perforated polarizer 21, the through hole 52 of the perforated structure 59, and the through hole 72 of the perforated retardation layer 81 with the curable resin composition is particularly limited. doesn't happen For example, the curable resin composition may be injected into the through holes 22 , 52 , 72 using a dispenser or dispenser, or on the surface of the aperture retardation layer 81 or the surface of the aperture polarizer 21 . The through holes 22, 52, 72 may be filled with the curable resin composition while coating the curable resin composition thereon. When the curable resin composition is filled into the through holes 22 , 52 , 72 while coating the curable resin composition on the surface of the perforated polarizer 21 , the curable resin composition coated on the surface of the perforated polarizer 21 . The cured product layer of can be a protective layer described later. When coating curable resin composition, you may form a base film so that the coating layer surface formed by coating may be covered. A base film may be used as a protective layer mentioned later, and in this case, the hardened|cured material layer of curable resin (X) is good also as a bonding layer for bonding the protective layer mentioned later. You may peel a base film after hardening of curable resin (X) contained in curable resin composition.

The support layer used at the time of manufacture of the raw material polarizer 20 mentioned later may be sufficient as the 1st support layer 25, and the said base film used when coating curable resin composition may be used for it.

Alternatively, a peelable support layer bonded to the raw material polarizer 20 with a volatile liquid such as water may be sufficient, or a peelable adhesive sheet may be used with respect to the raw material polarizer 20 . The second support layer 26 may be a peelable support layer bonded to the aperture polarizer 21 with a volatile liquid such as water, or may be a peelable adhesive sheet with respect to the aperture polarizer 21 . As a method of forming the 3rd support layer and the 4th support layer, the method illustrated as a method of forming the 1st support layer 25 and the 2nd support layer 26 is mentioned.

As described above, when the thickness of the raw material polarizer 20 is 15 µm or less, the depth of the through hole 22 formed in the apertured polarizer 21 can also be 15 µm or less. As described with respect to the polarizer composite 40, the thickness of the portion of the laminated structure including the polarization region 11, the cell region 55, and the retardation region 75 in the polarizer composite 40 is preferably 30 μm or less. Therefore, the total thickness of the thickness of the structure 58 and the thickness of the polymerization cured layer 85 serving as the raw material retardation layer is preferably 15 µm or less. Thereby, the total depth of the through-holes 22, 52, 72 can be set to 30 mu m or less. Accordingly, the through hole 22 of the perforated polarizer 21 , the through hole 52 of the perforated structure 59 , and the through hole 72 of the perforated retardation layer 71 are filled with the curable resin composition or the through hole Since the hardening process of curable resin (X) contained in the curable resin composition filled in (22, 52, 72) can be performed in a short time, the fall of workability|operativity can be suppressed.

(Method for producing polarizer complex (2))

9 and 10 are schematic cross-sectional views schematically showing another example of the manufacturing method of the polarizer composite of the present embodiment. 9 and 10, the case where the polarizer composite 41 shown in FIG. 4 is obtained is shown. The polarizer composite 41 can be manufactured using the 2nd laminated body 32 (FIG.7(c)) obtained by the manufacturing method of the polarizer composite 40. First, the 1st support layer 25 is peeled from the 2nd laminated body 32 shown in FIG.7(c) (FIG.9(a)), and the exposed surface (polarizer 10) exposed by this peeling A structure 58 is formed on the side surface). The structure 58 may be formed by the method described above. Thereby, the 4th laminated body 35 which laminated|stacked the base material layer 84, the polymerization cured layer 85, the structure 58, the raw material polarizer 20, and the structure 58 in this order is obtained (FIG. 9). of (b)). With respect to the fourth laminated body 35, a through hole 36 penetrating in the lamination direction is formed by punching, cutout, cutting, laser cutting, or the like (FIG. 9(c)). Thereby, the perforated polarizer 21 in which the through-holes 22 are formed in the raw material polarizer 20, the perforated structures 59 in which the through-holes 52 are respectively formed in the two structures 58, and the polymerization cured layer 85 ), the aperture retardation layer 81 in which the through hole 72 was formed is obtained.

A fourth support layer 27 is laminated on the side of the perforated structure 59 (opposite to the perforated retardation layer 81) of the fourth laminate 35 in which the through-holes 36 are formed (Fig. 10(a)). . The fourth support layer 27 is formed so as to block one side of the through hole 52 of the perforated structure 59 . Thereafter, the base layer 84 is peeled off (FIG. 10(b)), the through-holes 22 of the perforated polarizer 21, the through-holes 52 of the two perforated structures 59, and the perforation retardation layer By filling the through hole 72 of (81) with a curable resin composition containing the curable resin (X) and irradiating an active energy ray, the curable resin (X) in the through hole (22, 52, 72) After curing, the through hole 22 of the perforated polarizer 21, the through hole 52 of the two perforated structures 59, and the through hole 72 of the perforated retardation layer 81 are coated with the curable resin (X). A cargo is formed (FIG. 10 (c)). Thereby, the polarizer composite 41 is obtained on the 4th support layer 27. In the polarizer composite 41 , a reinforcing material 50 , a polarizer 10 , a reinforcing material 50 , and a retardation layer 71 are laminated in this order on a fourth support layer 27 . After forming the cured product, the fourth support layer 27 may be peeled off. As for the obtained polarizer 10, the area|region other than the through-hole 22 of the apertured polarizer 21 became the polarization area|region 11, and the area|region of the through-hole 22 in which the hardened|cured material was provided became the non-polarization area|region 12. . In the obtained reinforcing material 50 , the region other than the through hole 52 of the perforated structure 59 became the cell region 55 , and the region of the through hole 52 provided with the cured product became the non-cell region 56 . In the obtained retardation layer 71 , the region other than the through hole 72 of the open hole retardation layer 81 becomes the retardation region 75 , and the region of the through hole 72 provided with the cured product is the non-retardation region 76 . it became And the non-polarization area|region 12 in the polarizer 10, the non-cell area|region 56 in the reinforcement material 50, and the non-retardation area|region 76 in the retardation layer 71 are mutually communicating.

A method of filling the through-holes 22 of the perforated polarizer 21, the through-holes 52 of the two perforated structures 59, and the through-holes 72 of the perforated retardation layer 81 with the curable resin composition, The charging method demonstrated in the manufacturing method of the polarizer composite 40 is mentioned. As a method of forming the 4th support layer 27, the method illustrated as a method of forming the 1st support layer 25 and the 2nd support layer 26 is mentioned.

(Method for producing polarizer complex (3))

11 and 12 are schematic cross-sectional views schematically showing another example of the method for manufacturing the polarizer composite of the present embodiment. 11 and 12, the case where the polarizer composite 42 shown in FIG. 5 is obtained is shown. The polarizer composite 42, for example, has the same visibility correction polarization degree Py as a whole, and the raw material polarizer 20 (FIG. 11(a)) which does not have the non-polarization region 12, and the raw material retardation layer As a result, it can be manufactured using the polymerization cured layer 85 (FIG. 11(b)), which is the entire retardation region. The raw material polarizer 20, the polymerization cured layer 85, and the structure 58 are as described above.

The polarizer composite 42 can be manufactured, for example, in the following process. First, on one surface of the raw material polarizer 20, on one surface of the raw material polarizer 20, the first support layer 25 is formed so that peeling is possible with respect to the raw material polarizer 20 (FIG. 11(a)). A polymerizable liquid crystal compound is polymerized and cured on the base layer 84 to prepare a polymerizable cured layer 80 with a base layer in which a polymerization cured layer 85 that is the entire retardation region is formed on the base layer 84 (FIG. 11(b)). On the raw material polarizer 20 on the first support layer 25, through a bonding layer (not shown), the polymerization cured layer 85 side of the polymerization cured layer 80 with a base layer is laminated (FIG. 11C) ), the base layer 84 is peeled (FIG. 11(d)). The structure 58 is formed on the surface (surface on the side of the polymerization cured layer 85) exposed by peeling the base material layer 84 (FIG.11(e)). The structure 58 may be formed by the method described above. Thereby, the 5th laminated body 37 in which the structure 58, the polymerization hardened|cured layer 85, the raw material polarizer 20, and the 1st support layer 25 were laminated|stacked in this order is obtained (FIG.11(e)) ).

With respect to the fifth laminate 37, a through hole 38 penetrating in the lamination direction is formed by punching, cutout, cutting, laser cutting, or the like (FIG. 12(a)). Thereby, the aperture polarizer 21 in which the through hole 22 is formed in the raw material polarizer 20 , the aperture retardation layer 81 in which the through hole 72 is formed in the polymerization cured layer 85 , and the structure 58 . A hole structure 59 in which each through hole 52 is formed is obtained. A fifth support layer 28 is laminated on the side of the aperture structure 59 (opposite side to the aperture retardation layer 81) of the fifth laminate 37 in which the through-holes 38 are formed (FIG. 12(b)). . The fifth support layer 28 is formed so as to block one side of the through hole 72 of the aperture retardation layer 81 .

Thereafter, the first support layer 25 is peeled off (FIG. 12(c)), the through-holes 22 of the perforated polarizer 21, the through-holes 72 of the perforated retardation layer 81, and the perforated structure ( 59), the curable resin composition containing the curable resin (X) is filled in the through-holes 52, and the curable resin (X) in the through-holes 22, 72, 52 is cured by irradiating an active energy ray. A cured product of the curable resin (X) is formed in the through hole 22 of the perforated polarizer 21 , the through hole 72 of the perforated retardation layer 81 , and the through hole 52 of the perforated structure 59 . (Fig. 12 (d)). Thereby, the polarizer composite 42 is obtained on the 5th support layer 28. As shown in FIG. In the polarizer composite 42 , a reinforcing material 50 , a retardation layer 71 , and a polarizer 10 are laminated in this order on a fifth support layer 28 . After forming the cured product, the fifth support layer 28 may be peeled off. As for the obtained polarizer 10, the area|region other than the through-hole 22 of the apertured polarizer 21 became the polarization area|region 11, and the area|region of the through-hole 22 in which the hardened|cured material was provided became the non-polarization area|region 12. . In the obtained reinforcing material 50 , the region other than the through hole 52 of the perforated structure 59 became the cell region 55 , and the region of the through hole 52 provided with the cured product became the non-cell region 56 . In the obtained retardation layer 71 , the region other than the through hole 72 of the open hole retardation layer 81 becomes the retardation region 75 , and the region of the through hole 72 provided with the cured product is the non-retardation region 76 . it became

As a method of filling the through-holes 22 of the perforated polarizer 21, the through-holes 72 of the perforated retardation layer 81, and the through-holes 52 of the perforated structure 59, the curable resin composition is filled with a polarizer composite. The filling method demonstrated in the manufacturing method of (1) is mentioned. As a method of forming the 5th support layer 28, the method illustrated as a method of forming the 1st support layer 25 and the 2nd support layer 26 is mentioned.

(Method for producing polarizer complex (4))

13 and 14 are schematic cross-sectional views schematically showing another example of the method for manufacturing the polarizer composite of the present embodiment. 13 and 14, the case where the polarizer composite 43 shown in FIG. 6 is obtained is shown. The polarizer composite 43 can be manufactured using the 5th laminated body 37 (FIG. 11(e)) obtained by the manufacturing method of the polarizer composite 42. First, the 6th support layer 29 is laminated|stacked on the structure 58 side of the 5th support layer 28 shown in FIG.11(e) (FIG.13(a)), After that, the 1st support layer 25 ) is peeled (FIG. 13(b)). The structure 58 is formed on the exposed surface (surface on the side of the polarizer 10) exposed by this peeling. The structure 58 may be formed by the method described above. Thereby, the 6th laminated body 39 in which the 6th support layer 29, the structure 58, the polymerization hardened|cured layer 85, the raw material polarizer 20, and the structure 58 were laminated|stacked in this order is obtained (FIG. 13(c)). With respect to the sixth laminated body 39, a through hole 91 penetrating in the lamination direction is formed by punching, cutout, cutting, laser cutting, or the like (FIG. 13(d)). Thereby, the perforated structure 59 in which the through-holes 52 are respectively formed in the two structures 58 , the perforated polarizer 21 in which the through-holes 22 are formed in the raw material polarizer 20 , and the polymerization cured layer 85 . ), the aperture retardation layer 81 in which the through hole 72 was formed is obtained.

In the sixth stacked body 39 in which the through-holes 91 are formed, a seventh support layer 92 is laminated on the side of the apertured structure 59 provided on the opposite side to the apertured retardation layer 81 of the apertured polarizer 21 . (FIG. 14 (a)). The seventh support layer 92 is formed so as to block one side of the through hole 52 of the perforated structure 59 . Thereafter, the sixth support layer 29 is peeled off (FIG. 14(b)), the through-holes 52 of the two perforated structures 59, the through-holes 22 of the perforated polarizer 21, and the perforation retardation The through-holes 72 of the layer 81 are filled with a curable resin composition containing a curable resin (X) and irradiated with active energy rays, whereby the curable resin (X) in the through-holes 52, 22, 72 of the curable resin (X) in the through-holes 52 of the two perforated structures 59, the through-holes 22 of the perforated polarizer 21, and the through-holes 72 of the perforated retardation layer 81. A cured product is formed (FIG. 14(c)). Thereby, the polarizer composite 43 is obtained on the 7th support layer 92. In the polarizer composite 43 , a reinforcing material 50 , a polarizer 10 , a retardation layer 71 , and a reinforcing material 50 are laminated in this order on a seventh support layer 92 . After forming the cured product, the seventh support layer 92 may be peeled off. As for the obtained polarizer 10, the area|region other than the through-hole 22 of the apertured polarizer 21 became the polarization area|region 11, and the area|region of the through-hole 22 in which the hardened|cured material was provided became the non-polarization area|region 12. . In the obtained two reinforcing materials 50, the region other than the through hole 52 of the perforated structure 59 becomes the cell region 55, and the region of the through hole 52 provided with the cured product is the non-cell region 56. became In the obtained retardation layer 71 , the region other than the through hole 72 of the open hole retardation layer 81 becomes the retardation region 75 , and the region of the through hole 72 provided with the cured product is the non-retardation region 76 . it became

A method of filling the through-holes 52 of the two perforated structures 59, the through-holes 22 of the perforated polarizer 21, and the through-holes 72 of the perforated retardation layer 81 with the curable resin composition, The charging method demonstrated by the manufacturing method of the polarizer composite 1 is mentioned. As a method of forming the 6th support layer 29 and the 7th support layer 92, the method illustrated as a method of forming the 1st support layer 25 and the 2nd support layer 26 is mentioned.

(raw polarizer)

It is preferable that the raw material polarizer 20 is not remarkably changed in quality by the active energy ray irradiated in order to harden curable resin (X) in the curable resin composition filled in the through hole 22. The raw material polarizer 20 is, for example, a film in which a dichroic dye is adsorbed and aligned on a polyvinyl alcohol-based resin film, or a dichroic dye is oriented in a cured layer of a polymerizable liquid crystal compound, and their manufacturing method is described above. As described for one polarization region 11 .

(Raw material retardation layer)

The raw material retardation layer consists of a retardation area|region which has retardation characteristic as a whole. The raw retardation layer may have, for example, retardation characteristics of the retardation region 75 described above. The raw material retardation layer may have retardation characteristics functioning as, for example, a quarter-wave plate, a half-wave plate, a quarter-wave plate having reverse wavelength dispersion, or a positive C plate.

The raw material retardation layer is, for example, a stretched film obtained by uniaxially stretching or biaxially stretching a thermoplastic resin, or a polymerization cured layer of a polymerizable liquid crystalline compound.

As the thermoplastic resin constituting the stretched film, a translucent (preferably optically transparent) thermoplastic resin is preferable. Specifically, polyolefin-based resins such as chain polyolefin-based resins (polyethylene-based resins, polypropylene-based resins, etc.) and cyclic polyolefin-based resins (norbornene-based resins, etc.); cellulose ester-based resins such as triacetyl cellulose, diacetyl cellulose, cellulose acetate propionate and cellulose acetate butyrate; Polyester-based resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polytrimethylene terephthalate, polytrimethylene naphthalate, polycyclohexanedimethyl terephthalate, and polycyclohexanedimethyl naphthalate ; polycarbonate-based resin; (meth)acrylic resin; polystyrene-based resin; or mixtures and copolymers thereof.

The polymerizable liquid crystal compound constituting the polymerization cured layer is a compound having a polymerizable reactive group and exhibiting liquid crystallinity. As a polymerizable reactor, the polymerizable reactor illustrated by the raw material polarizer is mentioned. The kind of the polymerizable liquid crystal compound is not particularly limited, and a rod-shaped liquid crystal compound, a disk-shaped liquid crystal compound, and a mixture thereof can be used. The liquid crystal property of the polymerizable liquid crystal compound may be either a thermotropic liquid crystal or a lyotropic liquid crystal, and a nematic liquid crystal or a smectic liquid crystal may be sufficient as a normal-order structure.

The raw material retardation layer is [v], for example, a method of applying a composition for forming a retardation layer comprising a polymerizable liquid crystal compound on an alignment layer formed on a base film, and polymerizing and curing the polymerizable liquid crystal compound, [vi] It can be formed by the method of apply|coating the composition for retardation layer formation on a base material layer, forming a coating film, and extending|stretching this coating film together with a base material layer. As a base material layer, the base film used by said [ii] demonstrated with the raw material polarizer is mentioned.

Examples of the stretched film and polymerization cured layer constituting the raw material retardation layer include the retardation layer described in International Publication No. 2018/003416.

(Structure (Structure) for Reinforcement Formation)

The structure 58 is a structure which consists of only the cell area|region 55 and does not have the non-cell area|region 56. As shown in FIG. The structure 58 can be obtained by forming the cell partition walls 53 dividing the cells 51 using a resin material or an inorganic oxide as described above. As a resin material and a material usable as an inorganic oxide, and a method for forming the cell barrier rib 53 using these materials, the materials and methods exemplified above are exemplified.

<Optical laminate>

15-18 are schematic cross-sectional views which show typically an example of the optical laminated body of this embodiment.

The optical laminate has a protective layer on one side or both sides of the polarizer composites 40 to 43 shown in Figs. 1 and 4 to 5 .

(Optical laminate (1))

The optical laminate 45 shown in FIG. 15 has protective layers 17 and 18 on both surfaces of the polarizer composite 40 shown in FIG. 1(a). The optical laminate 45 may have the protective layer 17 (or 18) only on one side of the polarizer composite 40. The polarizer composite 40 included in the optical laminate 45 may be the polarizer composite 40 shown in FIGS. 2A to 2D . The protective layers 17 and 18 may be provided on the polarizer composite 40 through a bonding layer such as an adhesive layer or an adhesive layer. In this case, for example, a film-type protective layer may be laminated on the polarizer composite 40 through a bonding layer. The protective layers 17 and 18 may be provided so as to be in direct contact with the polarizer composite 40 without passing through the bonding layer. In this case, for example, a composition containing a resin material constituting the protective layers 17 and 18 is applied on the polarizer composite 40, and the protective layers 17 and 18 are solidified or cured by solidifying or curing the coating layer. can form.

When the optical laminate 45 is a thing in which the protective layer 17 is formed through a bonding layer on the polarizer 10 side of the polarizer composite 40 shown in Fig.2 (a) or (c), It is preferable to form a bonding layer so that the thickness difference between the polarization area|region 11 and the non-polarization area|region 12 of the polarizer 10 may be filled, and to form the protective layer 17. When the optical laminate 45 is a thing in which the protective layer 18 is formed through a bonding layer on the polarizer 10 side of the polarizer composite 40 shown in Fig.2 (b) or (d), It is preferable to form a bonding layer so that the thickness difference between the polarization area|region 11 and the non-polarization area|region 12 of the polarizer 10 may be filled, and to form the protective layer 18.

When the protective layer 18 is formed so that the optical laminate 45 is in direct contact with the retardation layer 71 side of the polarizer composite 40 shown in Fig. 2(a) or (c), Forming the protective layer 18 by preparing a composition containing a resin material constituting the protective layer 18 to fill the thickness difference between the retardation region 75 and the non-retardation region 76 of the retardation layer 71 it is preferable When the protective layer 18 is formed so that the optical laminate 45 is in direct contact with the retardation layer 71 side of the polarizer composite 40 shown in Fig. 2 (b) or (d), Forming the protective layer 18 by preparing a composition containing a resin material constituting the protective layer 18 to fill the thickness difference between the retardation region 75 and the non-retardation region 76 of the retardation layer 71 it is preferable

In the optical laminate 45 , the protective layer 17 may be a cured product layer of the curable resin (X) provided directly on the polarizer 10 . The curable resin (X) constituting the protective layer 17, which is the cured material layer, is not particularly limited as long as it is a resin that is cured by irradiation with active energy rays such as ultraviolet rays, visible light, electron beams, and X-rays. For example, the curable resin described above (X) is mentioned. The protective layer 17 is a cured product layer of the same curable resin (X) as the curable resin (X) constituting the cured product included in the non-polarization region 12 , the non-cell region 56 , and the non-retardation region 76 . It is preferable to be

The protective layer 17 is a cured product of the same curable resin (X) as the curable resin (X) constituting the cured product of the polarizer 10 , the cured product of the reinforcing material 50 , and the cured product of the retardation layer 71 . In the case of a layer, the protective layer 17 preferably covers at least the non-polarization region 12 of the polarizer 10 . The protective layer 17 may cover at least a part of one surface of the polarizer 10 , but it is preferable to cover the entire surface of one surface of the polarizer 10 .

In order to manufacture the optical laminate 45, for example, by coating a curable resin composition on the polarizer 10 side of the polarizer composite 40, and irradiating an active energy ray, the curable resin (X) (open hole polarizer 21) (with the curable resin (X) filled in the through hole 22, the through hole 52 of the perforated structure 59, and the through hole 72 of the perforated retardation layer 81) is cured. Thereby, on the polarizer 10, the protective layer 17 which is a hardened|cured material layer of curable resin (X) may be formed, and the optical laminated body 45 may be obtained.

Alternatively, in the process of manufacturing the polarizer composite 40, by coating the curable resin (X) on the surface of the apertured polarizer 21, the through-holes 72 of the apertured retardation layer 81, the apertured structure ( 59) and the through hole 22 of the apertured polarizer 21 are filled with a curable resin composition, and an application layer of the curable resin composition is also formed on the surface of the apertured polarizer 21. Thereafter, by irradiation with an active energy ray, in the through hole 72 of the aperture retardation layer 81, in the through hole 52 of the aperture structure 59, in the through hole 22 of the aperture polarizer 21, And the curable resin (X) contained in the curable resin composition on the apertured polarizer 21 may be hardened, the hardened|cured material and the protective layer 17 which is a hardened|cured material layer may be formed, and the optical laminated body 45 may be obtained. In this case, the hardened|cured material contained in the non-retardation area|region 76, the non-polarization area|region 12, and the non-cell area|region 56, and the hardened|cured material layer which comprises the protective layer 17 can be integrated, and the protective layer 17 ), the cured product of the curable resin (X) can be the same as the cured product contained in the non-retardation region 76 , the non-polarization region 12 , and the non-cell region 56 .

(Optical laminate (2))

The optical laminate 46 shown in FIG. 16 has protective layers 17 and 18 on both sides of the polarizer composite 41 shown in FIG. The optical laminate 46 may have the protective layer 17 (or 18) only on one side of the polarizer composite 41 . The protective layers 17 and 18 may be formed on the polarizer composite 41 through a bonding layer such as an adhesive layer or an adhesive layer, or may be formed so as to be in direct contact with the polarizer composite 41 without passing through the bonding layer. Regarding the method of forming the protective layers 17 and 18 on the polarizer composite 41, in the optical laminate 45 shown in FIG. 15, the protective layers 17 and 18 are formed on the polarizer composite 40. It can be done in the same order as the method.

When the optical laminate 46 is a case in which the protective layer 17 is formed on the reinforcing material 50 side of the polarizer composite 41 through a bonding layer, the inner space of the cell 51 of the reinforcing material 50; And it is preferable to form the protective layer 17 by forming a bonding layer so as to fill the gap between the plurality of cells 51 . When the protective layer 17 is formed so that the optical laminate 46 is in direct contact with the reinforcing material 50 side of the polarizer composite 40, the internal space of the cell 51 of the reinforcing material 50, and It is preferable to form the protective layer 17 by providing a composition containing a resin material constituting the protective layer 17 so as to fill a gap or the like between the plurality of cells 51 .

(Optical laminate (3))

The optical laminate 47 shown in FIG. 17 has protective layers 17 and 18 on both sides of the polarizer composite 42 shown in FIG. 5 . The optical laminate 47 may have a protective layer 17 (or 18) only on one side of the polarizer composite 42 . The protective layers 17 and 18 may be formed on the polarizer composite 42 through a bonding layer such as an adhesive layer or an adhesive layer, or may be formed so as to be in direct contact with the polarizer composite 42 without passing through the bonding layer. Regarding the method of forming the protective layers 17 and 18 on the polarizer composite 42, the protective layer on the polarizer composites 40 and 41 in the optical laminates 45 and 46 shown in FIGS. 15 and 16 above. (17, 18) can be performed in the same order as the method of forming.

(optical laminate (4))

The optical laminate 48 shown in FIG. 18 has protective layers 17 and 18 on both sides of the polarizer composite 43 shown in FIG. The optical laminate 48 may have the protective layer 17 (or 18) only on one side of the polarizer composite 43 . The protective layers 17 and 18 may be formed on the polarizer composite 43 through a bonding layer such as an adhesive layer or an adhesive layer, or may be formed so as to be in direct contact with the polarizer composite 43 without passing through the bonding layer. Regarding the method of forming the protective layers 17 and 18 in the polarizer composite 43, the protective layer in the polarizer composites 40 to 42 in the optical laminates 45 to 47 shown in FIGS. 15 to 17 above. (17, 18) can be performed in the same order as the method of forming.

When the protective layer 17 (or 18) provided on one side of the polarizer composites 40 to 43 is a layer formed so as to be in direct contact with the polarizer composites 40 to 43, the protective layer 17 (or 18) is A cured product of the same curable resin (X) as the curable resin (X) constituting the cured product contained in the non-retardation region 76, the non-polarization region 12, and the non-cell region 56 of the polarizer composites 40 to 43 can be done in layers. In this case, when manufacturing the polarizer composites 40 to 43 , the through hole 72 of the aperture retardation layer 81 , the through hole 52 of the aperture structure 59 , and the through hole of the apertured polarizer 21 ( While filling the curable resin composition in 22), a cured product layer obtained by curing the curable resin composition coated on the surfaces of the aperture retardation layer 81, the aperture polarizer 21, and the aperture structure 59 is applied to the protective layer 17 ( or 18). Thereby, the hardened|cured material contained in the non-retardation area|region 76, the non-polarization area|region 12, and the non-cell area|region 56, and the hardened|cured material layer which comprises the protective layer 17 (or 18) can be integrated, and , the curable resin (X) constituting the protective layer 17 (or 18) is a curable resin constituting the cured product contained in the non-retardation region 76, the non-polarization region 12 and the non-cell region 56 ( X) can be the same.

In the optical laminates 45 to 48 shown in Figs. 15 to 18, the protective layers 17 and 18 are formed using one of the protective layers formed through the bonding layer and the other formed without the bonding layer. It is good also as one protective layer. The protective layers 17 and 18 included in the optical laminates 45 to 48 may be the same as or different from each other.

When coating curable resin (X), you may form a base film so that the coating layer surface formed by coating may be covered. In this case, the base film is used as the protective layers 17 and 18, and the cured product layer of the curable resin (X) is used as a bonding layer for bonding the protective layers 17 and 18 to the polarizer composites 40 to 43. good night. You may peel a base film after hardening of curable resin (X).

(protective layer)

It is preferable that the protective layers 17 and 18 are a resin layer which can transmit light, and a resin film may be sufficient as it, and the coating layer formed by apply|coating the composition containing a resin material may be sufficient as it. The resin used for the resin layer is preferably a thermoplastic resin excellent in transparency, mechanical strength, thermal stability, moisture barrier property, isotropy, stretchability, and the like. As a thermoplastic resin, the thermoplastic resin which comprises the base film which may be used for manufacture of the said raw material polarizer 20 is mentioned. When the optical laminates 45 to 48 have the protective layers 17 and 18 on both surfaces, the resin compositions of the protective layers 17 and 18 may be the same as or different from each other.

The thickness of the protective layers 17 and 18 is usually 200 µm or less, preferably 150 µm or less, more preferably 100 µm or less, 80 µm or less, or 60 µm or less from the viewpoint of reducing the thickness. The thickness of the protective layers 17 and 18 is usually 5 µm or more, and may be 10 µm or more, or 20 µm or more. The protective layers 17 and 18 may or may not have a phase difference. When the optical laminates 45 to 48 have protective layers 17 and 18 on both surfaces, the thicknesses of the protective layers 17 and 18 may be the same as or different from each other.

(bonding layer)

The bonding layer is an adhesive layer or an adhesive layer. Examples of the pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer and the adhesive for forming the adhesive layer include pressure-sensitive adhesives and adhesives used to constitute the filler.

<Laminate body having bonding layer for optical display element>

The polarizer composites 40 to 43 shown in Figs. 1 to 6 and the optical laminates 45 to 48 shown in Figs. 15 to 18 are optical display elements of a display device such as a liquid crystal display device or an organic EL display device. You may further have the bonding layer for optical display elements for bonding to (a liquid crystal panel, organic electroluminescent element).

Between the polarization region 11 and the non-polarization region 12, like the polarizer composite 40 shown in Figs. 2(a) to (d), or between the phase difference region 75 and the non-phase difference region 76 When forming the bonding layer for optical display elements in the surface in which the thickness difference arose between them, it is preferable to form the bonding layer for optical display elements so that this thickness difference may be filled.

In the polarizer composites 41-43 and the optical laminates 46-48, when forming the bonding layer for optical display elements on the surface of the reinforcement material 50, it is an optical display element as a filler provided in the reinforcement material 50. You may perform the filling of the filler with respect to the internal space of the cell 51 of the reinforcing material 50, etc., and formation of the bonding layer for optical display elements simultaneously using the material which comprises the bonding layer for an optical display.

10 polarizer, 11: polarization region, 11m: first plane, 11n: second plane, 12: non-polarization region, 17, 18: protective layer, 20: raw polarizer, 21: aperture polarizer, 22: through hole, 25: : first support layer, 26: second support layer, 27: fourth support layer, 28: fifth support layer, 29: sixth support layer, 31: first laminate, 32: second laminate, 33: through hole, 34: 3rd laminated body, 35 4th laminated body, 36 through hole, 37 5th laminated body, 38 through hole, 39 6th laminated body, 40-43 polarizer composite, 45-48 optical laminated body , 50: reinforcing material, 51: cell, 52: through hole, 53: cell barrier rib, 70, 71: retardation layer, 72: through hole, 75: retardation region, 76: non-retardation region, 80: polymerization cured layer with base material layer , 81: pore retardation layer, 84: base layer, 85: polymerization cured layer, 91: through hole, 92: 7th support layer.

Claims (16)

A polarizer composite having a polarizer, a retardation layer and a reinforcing material, comprising:
The polarizer has a polarization region having a thickness of 15 μm or less, and a non-polarization region surrounded by the polarization region in plan view,
The retardation layer has a retardation characteristic and has a retardation region existing in a region corresponding to the polarization region, and a non-retardation region having no retardation characteristic and existing in a region corresponding to the non-polarization region,
The reinforcement is
a plurality of cells having an open end face, and each open end face is arranged to face the face of the polarizer;
a cell region in which the cell is present and in a region corresponding to the polarization region, and a non-cell region in which the cell is not present and in a region corresponding to the non-polarization region;
The non-polarization region, the specific retardation region, and the non-cell region include a cured product of an active energy ray-curable resin,
The cured product contained in the non-polarization region is provided in a through hole surrounded by the polarization region in plan view,
The polarizer composite in which the cured product contained in the non-retardation region is provided in a through hole surrounded by the retardation region in a plan view. According to claim 1, wherein the reinforcing material is provided on one side of the polarizer,
A polarizer composite having the retardation layer on the opposite side to the polarizer of the reinforcing material. According to claim 1, wherein the retardation layer is formed on one side of the polarizer,
A polarizer composite having the reinforcing material on the opposite side to the polarizer of the retardation layer. The polarizer composite according to claim 2 or 3, further comprising the reinforcing material on the other side of the polarizer. The polarizer composite according to any one of claims 1 to 4, wherein a thickness of the cured product is the same as a thickness of a laminated structure portion including the polarization region, the retardation region, and the cell region in the polarizer composite. The polarizer composite according to any one of claims 1 to 4, wherein a thickness of the cured product is smaller than a thickness of a laminated structure portion including the polarization region, the retardation region, and the cell region in the polarizer composite. The polarizer composite according to any one of claims 1 to 4, wherein a thickness of the cured product is greater than a thickness of a laminated structure portion including the polarization region, the retardation region, and the cell region in the polarizer composite. The polarizer composite according to any one of claims 1 to 7, wherein the retardation region is a polymerization cured layer of a polymerizable liquid crystal compound. The polarizer composite according to any one of claims 1 to 8, wherein the non-polarization region has light-transmitting properties. The polarizer composite according to any one of claims 1 to 9, wherein a diameter of the non-polarization region in a plan view is 0.5 mm or more and 20 mm or less. The polarizer composite according to any one of claims 1 to 10, wherein the active energy ray-curable resin contains an epoxy compound. The polarizer composite according to claim 11, wherein the epoxy compound comprises an alicyclic epoxy compound. The polarizer composite according to any one of claims 1 to 12, wherein a shape of the opening of the cell is a polygonal shape, a circular shape, or an elliptical shape. The polarizer composite according to any one of claims 1 to 13, wherein a light-transmitting filler is further provided in the inner space of the cell. An optical laminate having a protective layer on one side or both sides of the polarizer composite according to any one of claims 1 to 14. The method according to claim 15, wherein the protective layer provided on one side of the polarizer composite has the same active energy as an active energy ray-curable resin constituting the cured product included in the non-polarization region, the specific retardation region, and the non-cell region. An optical laminate that is a pre-curable resin.

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