JP2002207109A - Glare-proof film, polarizing film and transmission type display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent surface dazzling while retaining high clearness in a glare- proof film. SOLUTION: The glare-proof film 10 is obtained by stacking a transparent substrate film 12 and a glare-proof layer 18 formed by dispersing 3 to <30 pts.wt. light transmissive fine particles 16 having 0.5-5 μm particle diameter and a refractive index different from that of a light transmissive resin 14 by 0.02-0.2 in 100 pts.wt. of the light transmissive resin 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a computer,
The present invention relates to an anti-glare film provided on the surface of a high-definition image display such as a CRT and a liquid crystal panel used for image display of a word processor and a television, a polarizing film using the anti-glare film, and a transmission type display device.

[0002]

2. Description of the Related Art In such a display, if light emitted mainly from the inside goes straight without diffusing on the display surface, the light emitted from the inside is diffused to some extent because it is dazzling when the display surface is visually observed. Is provided on the display surface.

This anti-glare film is disclosed in, for example,
As disclosed in JP-A-8706 and JP-A-10-20103, a transparent substrate film is formed by applying a resin containing a filler such as silicon dioxide (silica) to the surface thereof.

[0004] These antiglare films are of a type in which irregularities are formed on the surface of the antiglare layer by agglomeration of particles such as cohesive silica, and an organic filler having a particle size larger than the thickness of the coating film is added to the resin. There is a type in which an uneven shape is formed on the surface of the layer, and a type in which a film having unevenness is laminated on the surface of the layer to transfer the uneven shape.

[0005]

The conventional anti-glare film as described above is capable of obtaining light diffusion and anti-glare effects by the action of only the surface shape of the anti-glare layer in any type. In order to enhance the anti-glare property, it is necessary to increase the unevenness. However, when the unevenness is increased, the haze value (haze value) of the coating film increases, and the transmission sharpness decreases accordingly. is there.

[0006] Similar to the above, there is a light diffusion film in which fine particles are dispersed in a layer to obtain a light diffusion effect. However, in order to obtain a sufficient light diffusion effect by the fine particles used here, However, it is necessary to increase the particle size, and therefore, there is a problem that although the haze value is high, the transmission sharpness is very small.

Furthermore, the above-mentioned conventional type of antiglare film has a problem that a so-called scintillation shine is generated on the film surface and visibility of a display surface is reduced.

The present invention has been made in view of the above-mentioned conventional problems, and is intended to improve transmission sharpness and reduce scintillation without lowering diffusion and antiglare properties. An object of the present invention is to provide an antiglare film, a polarizing plate using the antiglare film, and a transmissive display device.

[0009]

According to the present invention, at least a transparent base film and an antiglare layer containing at least one kind of light-transmitting fine particles in a light-transmitting resin are laminated. The light-transmitting fine particles have a particle size of 0.5 to 5
μm, the difference in refractive index between the transparent resin and the transparent resin is 0.02 to 0.2 μm.
The above-mentioned object is achieved by an antiglare film, which is 2 and is mixed in an amount of 3 or more and less than 30 parts by weight with respect to 100 parts by weight of the translucent resin.

[0010] The antiglare layer may have a haze value of 10% or more and less than 40%, a transmission sharpness of 50 or more, and a variation in luminance of transmitted light observed from the front of less than 0.3V.

Further, the antiglare layer may contain fine particles of cohesive silica of 5 parts by weight or less.

Further, the translucent resin may be an ionizing radiation curable resin.

Further, the transparent substrate film may be a triacetyl cellulose film.

[0014] The invention relating to the polarizing plate is as follows.
By providing a polarizing element and the above-described anti-glare film laminated on the surface of the polarizing element with the surface on the side opposite to the anti-glare layer of the transparent substrate facing the above, the above object is achieved. Is to achieve.

Further, the invention of a transmission type display device is described in claim 7.
Like, a flat light-transmitting display, a light source device for irradiating the light-transmitting display from the back, and the above-described anti-glare film laminated on the surface of the light-transmitting display, Thus, a transmission type display is constituted to achieve the above object.

In the present invention, the difference between the refractive index of the light-transmitting resin constituting the anti-glare layer and the refractive index of the light-transmitting fine particles contained in the resin is set to 0.02 to 0.2, so that the diffusion and anti-glare can be achieved. The transmission clarity is improved without lowering the transparency.
Also, in this case, the haze value is increased and the surface is uneven (luminance variation).
, The transmission sharpness can be maintained high.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

An anti-glare film 10 according to an embodiment of the present invention, as shown in FIG.
2 and an anti-glare layer 18 including light-transmitting fine particles 16 in a light-transmitting resin 14, wherein the light-transmitting fine particles 16 are
The particle size is 0.5 to 5 μm, the difference in refractive index from the light-transmitting resin 14 is 0.02 to 0.2, and the light-transmitting resin 14 is 3 or more based on 100 parts by weight. , Less than 30 parts by weight.

The transparent substrate film 12 is a resin film such as a triacetyl cellulose film, and the translucent resin 14 can be cured after being applied to the transparent substrate film 12, for example, an ultraviolet curable resin (refractive resin). Rate 1.5
1) wherein the light-transmitting fine particles 16 are made of a light-transmitting resin;
For example, it is composed of styrene beads (refractive index: 1.60).

The reason why the difference in the refractive index between the light-transmitting fine particles 16 and the light-transmitting resin 14 is 0.02 or more is that when the difference in the refractive index is less than 0.02, the difference between the two refractive indices becomes smaller. If the refractive index difference is larger than 0.2 because the light diffusing effect cannot be obtained because it is too small, the light diffusing property is too high and the whole film is whitened. The difference in the refractive index is 0.1.
04 or more and 0.1 or less are the best.

The particle size of the light-transmitting fine particles 16 is 0.5 μm
The reason for the above is that when the thickness is less than 0.5 μm, the translucent resin 1
Unless the amount of the light-transmitting fine particles 16 to be added to 4 is very large, the light diffusion effect cannot be obtained, and the unevenness on the surface of the antiglare layer 18 is not formed, and the antiglare effect cannot be obtained. It is. The reason why the particle diameter of the light-transmitting fine particles 16 is 5 μm or less is that when the particle diameter exceeds 5 μm, the surface shape of the antiglare layer 18 becomes coarse and the haze value becomes high. Note that, ideally, the diameter of the light-transmitting fine particles 16 is 1 μm or more and 4 μm or less.

Furthermore, the light-transmitting resin 1 of the light-transmitting fine particles 16
When the amount is less than 30 parts by weight, the light diffusion effect is not obtained, and when the amount is more than 5 parts by weight, the entire film is whitened. The translucent fine particles 16
Is ideally not less than 5 parts by weight and not more than 20 parts by weight when the translucent resin 14 is 100 parts by weight.

As described above, due to the slight difference in the refractive index between the light-transmitting fine particles 16 as the filler and the light-transmitting resin 14, a state in which high transmission definition is maintained without whitening the entire film. Thus, light transmitted through the antiglare film 10 can be averaged by the diffusion effect.

For this reason, even when the haze value of the film is high, it is possible to prevent glare on the surface without lowering the transmission clarity. Furthermore, surface glare can be prevented while maintaining high transmission definition.

The glare on the surface is the brightness of light based on the variation in brightness on the film surface. Therefore, by measuring the variation in luminance on the film surface, it is possible to measure the glare of the surface.

The material of the transparent substrate film 12 includes a transparent resin film, a transparent resin plate, a transparent resin sheet and a transparent glass.

Examples of the transparent resin film include a triacetate cellulose (TAC) film, a polyethylene terephthalate (PET) film, a diacetyl cellulose film, an acetate butyrate cellulose film, a polyether sulfone film, a polyacrylic resin film, a polyurethane resin film, Polyester films, polycarbonate films, polysulfone films, polyether films, polymethylpentene films, polyetherketone films, (meth) acrylonitrile films and the like can be used. The thickness is usually 25
It is set to about μm to 1000 μm.

As the transparent substrate film 12, a TAC having no birefringence can be used to form a polarizing plate by laminating an antiglare film with a polarizing element (described later). It is particularly preferable because a liquid crystal display device having excellent display quality can be obtained.

When the anti-glare layer 18 is applied by various coating methods, from the viewpoint of workability such as heat resistance, solvent resistance and mechanical strength, the transparent substrate film 12 is made of P
ET is particularly desirable.

The translucent resin 14 forming the anti-glare layer 18
As the resin, three types of resins mainly cured by ultraviolet rays and electron beams, that is, ionizing radiation-curable resins, mixtures of ionizing radiation-curable resins with thermoplastic resins and solvents, and thermosetting resins are used.

The film-forming component of the ionizing radiation-curable resin composition is preferably one having an acrylate-based functional group, for example, a polyester resin, a polyether resin, an acrylic resin, an epoxy resin, a urethane resin having a relatively low molecular weight, Oligomers or prepolymers such as (meth) alylates of polyfunctional compounds such as alkyd resins, spiroacetal resins, polybutadiene resins, polythiol polyene resins, polyhydric alcohols, and ethyl (meth) acrylate and ethylhexyl (meth) acrylate as reactive diluents , Styrene, methylstyrene, N-vinylpyrrolidone and other monofunctional monomers and polyfunctional monomers such as polymethylolpropane tri (meth) acrylate, hexanediol (meth) acrylate, tripropylene glycol di (meth) acrylate. ) Acrylate, diethylene glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, 1,6-hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, etc. Those containing an extremely large amount can be used.

Further, in order to make the above-mentioned ionizing radiation-curable resin composition into an ultraviolet-curable resin composition, acetophenones, benzophenones, Michler benzoyl benzoate, α-amyloxime ester as photopolymerization initiators may be used. Tetramethyl turum monosulfide, thioxanthones, and n-butylamine, triethylamine, poly-n-butylphosphine, and the like as photosensitizers can be mixed and used. In particular, in the present invention, it is preferable to mix urethane acrylate as an oligomer and dipentaerythritol hexa (meth) acrylate as a monomer.

Further, as the light-transmitting resin 14 for forming the antiglare layer 18, a solvent-drying resin may be contained in the ionizing radiation-curable resin as described above. As the solvent drying type resin, a thermoplastic resin is mainly used.
As the type of the solvent-drying type thermoplastic resin to be added to the ionizing radiation-curable resin, a commonly used type is used. Particularly, when a cellulose-based resin such as TAC as described above is used as the transparent substrate film 12, ionizing radiation is used. Cellulose resins such as nitrocellulose, acetylcellulose, cellulose acetate propionate, and ethylhydroxyethylcellulose are advantageous as the solvent-drying resin contained in the curable resin in terms of adhesion and transparency of the coating film.

The reason is that when toluene is used as a solvent for the above-mentioned cellulose resin, the transparent substrate film 1
Despite the use of toluene, which is a solvent insoluble in polyacetylcellulose being 2, the transparent substrate film 12
Even if a coating containing the solvent-drying type resin is applied to the transparent substrate film, the adhesion between the transparent substrate film 12 and the coating resin can be improved, and the toluene can be used as the transparent substrate film of polyacetyl. This is because, since the cellulose is not dissolved, the surface of the transparent base film 12 is not whitened, and there is an advantage that transparency is maintained.

Furthermore, there is an advantage that the ionizing radiation-curable resin composition contains a solvent-drying resin as described below.

When the ionizing radiation-curable resin composition is applied to the transparent substrate film 12 by a roll coater having a metalling roll, the liquid residual resin film on the surface of the metalling roll flows and becomes streaked or uneven over time. However, these re-transfer to the coated surface and cause defects such as streaks and unevenness on the coated surface, but when the ionizing radiation-curable resin composition contains a solvent-dried resin as described above, Coating defects can be prevented.

As the method for curing the ionizing radiation-curable resin composition as described above, the method for curing the ionizing radiation-curable resin composition may be an ordinary curing method, that is, curing by irradiation with an electron beam or ultraviolet rays. it can.

For example, in the case of electron beam curing, the electron beam is emitted from various electron beam accelerators such as Cockloft-Walton type, Bandegraf type, Resonant transformer type, Insulating core transformer type, Linear type, Dynamitron type and High frequency type. 50 to 1000 Ke
V, preferably an electron beam having an energy of 100 to 300 KeV is used. In the case of ultraviolet curing, ultraviolet rays emitted from light beams such as an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc, a xenon arc, and a metal halide lamp are used. Available.

Examples of the thermoplastic resin mixed with the ionizing radiation-curable resin include a serol resin, a urea resin, a diallyl phthalate resin, a melanin resin, a guanamine resin, an unsaturated polyester resin, a polyurethane resin, an epoxy resin, an amino alkyd resin, Melamine-urea co-condensation resin, silicon resin, polysiloxane resin, etc. are used, and a crosslinking agent, a curing agent such as a polymerization initiator, a polymerization accelerator, a solvent, a viscosity modifier and the like are added to these resins as necessary. use.

As the light-transmitting fine particles 16 contained in the anti-glare layer 18, plastic beads are preferable, and particularly, the beads have high transparency, and the refractive index difference from the matrix resin (light-transmitting resin 14) is as described above. The one that results in a numerical value is preferred.

As plastic beads, melamine beads (refractive index 1.57) and acrylic beads (refractive index 1.
49), acrylic-styrene beads (refractive index 1.5
4), polycarbonate beads, polyethylene beads,
Polystyrene beads, PVC beads and the like are used. The particle size of these plastic beads is 0.5 as described above.
５5 μm is appropriately selected and used.

When the translucent fine particles 16 as the organic filler as described above are added, the organic filler is liable to settle in the resin composition (translucent resin 14). May be added. The more the inorganic filler is added, the more effective it is in preventing the sedimentation of the organic filler, but it has a bad influence on the transparency of the coating film. Therefore, it is preferable to prevent sedimentation by adding an inorganic filler having a particle size of 0.5 μm or less to the translucent resin 16 in an amount of less than 0.1% by weight so as not to impair the transparency of the coating film. Can be.

When the inorganic filler which is an anti-settling agent for preventing the settling of the organic filler is not added, the organic filler is settled at the bottom at the time of application to the transparent base material film 12, so that the organic filler is thoroughly stirred and uniformly mixed. And use it.

Here, in general, the refractive index of the ionizing radiation-curable resin is about 1.5, which is about the same as that of glass. However, in comparison with the refractive index of the light-transmitting fine particles, the refractive index of the resin used is small. If it is low, TiO2 (refractive index: 2.3 to 2.7) which is fine particles having a high refractive index, Y
2O3 (refractive index; 1.87), La2O3 (refractive index; 1.9)
5), ZrO2 (refractive index; 2.05), Al2O3 (refractive index; 1.63), etc. can be added to such an extent that the diffusivity of the coating film can be maintained, and the refractive index can be increased.

Next, on the surface of the transparent substrate film 12,
The process of forming the antiglare layer 18 will be described with reference to FIG.

As shown in FIG. 2B, a transparent resin 14 mixed with transparent fine particles 16 is applied to the transparent base film 12 shown in FIG. Then, a shaping film 19 having fine irregularities formed on the surface is laminated so that the surface is in contact with the coating layer (see FIG. 2 (C)). In the case of an ultraviolet-curing resin, these electron beams or ultraviolet rays are irradiated through a shaping film 19, and in the case of a solvent-drying resin, the resin is cured by heating, and then the anti-glare layer 18 is cured. Peel from

In this way, the antiglare layer 18 becomes smooth as a whole, and fine irregularities formed in advance on the molding film 19 are formed.

Therefore, the surface of the diffusion layer 18 can be made smoother than when the liquid translucent resin 14 mixed with the translucent fine particles 16 is simply applied.

Next, an embodiment of the polarizing plate according to the present invention shown in FIG. 3 will be described.

As shown in FIG. 2, a polarizing plate 20 according to this embodiment is provided on a polarizing layer (polarizing element) 22 on one surface (upper side in FIG. 3) of the same anti-glare film 1 as described above.
1 is provided.

The polarizing layer 22 is laminated between two layers of the TAC films 12A and 24, which are transparent base films, and has a three-layer structure. The first and third layers are formed of polyvinyl alcohol (PVA). ) With iodine,
The intermediate second layer consists of a PVA film.

The antiglare film 11 is a TAC film 1
This is a configuration in which an antiglare layer 18 is laminated on 2A.

The TAC, which is provided on both outer sides of the polarizing layer 22 and serves as a transparent substrate, has no birefringence and does not disturb the polarized light. . Therefore, a liquid crystal display device having excellent display quality can be obtained by using such a polarizing plate 20.

The polarizing layer 2 in the polarizing plate 20 as described above
Examples of the polarizing element constituting 2 include a PVA film dyed and stretched with iodine or a dye, a polyvinyl formal film, a polyvinyl acetal film, a saponified ethylene-vinyl acetate copolymer film, and the like.

In laminating the films constituting the polarizing layer 22, it is preferable to perform a saponification treatment on the TAC film in order to increase adhesion and prevent static electricity.

Next, an example of an embodiment in which the liquid crystal display is used as the transmissive display according to the present invention shown in FIG. 4 will be described.

A liquid crystal display device 30 shown in FIG. 4 includes a polarizing plate 32 similar to the above-described polarizing plate 20, a liquid crystal panel 34,
The polarizing plate 36 and the polarizing plate 36 are stacked in this order, and the polarizing plate 36
This is a transmissive liquid crystal display device in which a backlight 38 is arranged on the back surface on the side.

The liquid crystal modes used in the liquid crystal panel 34 of the liquid crystal display device 30 include a twisted nematic type (TN), a super twisted nematic type (STN), a guest-host type (GH), and a phase transition type (PC). And polymer dispersion type (PDLC).

The driving mode of the liquid crystal may be either a simple matrix type or an active matrix type. In the case of the active matrix type, a driving method such as TFT or MIM is adopted.

The liquid crystal panel 34 may be of a color type or a monochrome type.

[0061]

EXAMPLES Examples of the present invention will be described below in comparison with comparative examples.

Table 1 shows the materials and additives of the light-transmitting fine particles added to the light-transmitting resin constituting the anti-glare layer, the particle diameter of the light-transmitting fine particles, the refractive index of the light-transmitting fine particles, and the surface of the anti-glare layer. Roughness Rz, changing the respective conditions of the addition parts by weight of the light-transmitting fine particles with respect to 100 parts by weight of the light-transmitting resin in the anti-glare layer, and the maximum brightness variation V of the anti-glare film obtained under the above conditions, Scintillation (surface), the haze value (haze value) of the antiglare film, and clear transmission as a result of laminating a polarizing plate formed using the antiglare film on an XGA liquid crystal panel having a size of 12.1 inches The degree is shown for Examples 1 to 12.

[0063]

[Table 1]

[0064]

[Table 2]

Table 2 shows the respective conditions such as the case where coagulable silica was added instead of the light-transmitting fine particles and the case where the particle size and the added amount by weight of the light-transmitting fine particles such as acryl were changed. , And the results of observation are shown in comparison with Examples in Comparative Examples 1 to 11.

Here, in the above Examples and Comparative Examples,
The translucent resin constituting the anti-glare layer is an ultraviolet curable resin (PETA, manufactured by Nippon Kayaku, refractive index: 1.51), and the translucent resin is triacetyl cellulose (Ceridol CP, manufactured by Bayer AG). , A refractive index of 2.22) and a curing initiator (Irigacure 18 manufactured by Ciba Geigy).
4) 5 parts by weight, light-transmitting fine particles were styrene beads (manufactured by Soken Chemical Co., refractive index 1.60), melamine beads (manufactured by Nippon Shokubai, refractive index 1.57), and further, polycarbonate beads (manufactured by Teijin Chemicals Ltd.) , A refractive index of 1.57), an acrylic styrene bead, and a coagulable silica having a secondary particle size of 1.0 μm (manufactured by Nippon Silica), and a mixture obtained by mixing them and adjusting the solid content to 40% with toluene. A triacetyl cellulose film (TD-80U, manufactured by Fuji Photo Film) is coated so as to have a thickness of 6 μm / dry, and after drying the solvent, a shaping film (X-45, manufactured by Toray) is laminated on the coated surface, and ultraviolet rays are irradiated at 140 MJ. After the irradiation, the shaped film was peeled off and formed.

Further, the “luminance variation” in Tables 1 and 2
Was detected by measuring transmitted light with a photomultiplier tube (Photomaru) under the following conditions.

Apparatus used: Microscopic gloss meter MG-1 manufactured by Suga Test Instruments Co., Ltd. Method: Light-emitting part (halogen lamp) and light-receiving part (Photomaru)
Black stripe line width 30μ perpendicular to the optical axis
m, a staggered color filter having openings of 100 μm is installed, and an antiglare film to be measured is bonded to the surface of the filter with the uneven surface facing the light receiving unit side. Photomal voltage of 450
V, set the amplifier gain to 4, and move the color filter / anti-glare film bonded product in the direction perpendicular to the optical axis at a speed of 2 μm / sec to 2 μm in the anti-glare film surface.
The minute luminance for each m is measured.

The luminance variation refers to a change in luminance at the opening of the minute luminance.

Further, the surface roughness (Rz) is determined according to JIS-B-
0601, measured using Kosaka Laboratory SE-3400, haze (cloudiness value) was measured using Murakami Color Research Laboratory HR-100 according to JIS-K-7105,
The transmission sharpness was measured using a sigma tester ICM-1DP image clarity measuring device according to JIS-K-7105.

The ATO filler as an internal diffusing agent to be mixed into the translucent resin in Comparative Example 8 has a refractive index of 1.90, manufactured by Shinto Paint Co., Ltd.

As can be seen from Table 1, in the present invention, even when the haze value is high, the maximum luminance variation is small, no flat surface is observed, and the transmission sharpness is high.

Further, when the haze value is low, the maximum brightness variation is small and the transmission sharpness is very high, although no surface flaws are observed.

On the other hand, in the comparative example, as shown in Table 2, the haze value can be made extremely high to reduce the fuzziness, but the transmission sharpness is greatly reduced.

Further, the transmission sharpness is improved by reducing the haze value. However, in this case, the maximum luminance variation is large, and the surface becomes uneven.

[0076]

The present invention is configured as described above.
Even when the haze value is increased in the anti-glare film, the transmission sharpness can be maintained relatively high, and the occurrence of surface glazing can be prevented. When the haze value is low, the transmission clarity can be achieved without surface glazing. It has an excellent effect that the degree can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an antiglare film according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a manufacturing process of the anti-glare film.

FIG. 3 is a cross-sectional view showing an example of an embodiment of the invention of a polarizing plate using the antiglare film of the present invention.

FIG. 4 is a sectional view showing an example of an embodiment of a transmission type display device using the antiglare film of the present invention.

[Explanation of symbols]

 10, 11: Anti-glare film 12: Transparent base film 14: Translucent resin 16: Translucent fine particles 18: Anti-glare layer 20, 32, 36: Polarizing plate 22: Polarizing layer 30: Liquid crystal display device 34: Liquid crystal panel

Continued on the front page F-term (reference) 2H042 BA02 BA12 BA20 2H049 BA02 BB43 BB49 BB65 BC22 2K009 AA12 BB28 CC09 4F100 AA20C AJ06B AK01C AK12C AR00A AR00B BA03 BA07 DE01C EJ53C GB41 JA03C03 J01JNJ JN01B03

Claims (7)

[Claims] 1. A laminate comprising at least a transparent base film and an antiglare layer containing at least one kind of light-transmitting fine particles in a light-transmitting resin, wherein the light-transmitting fine particles have a particle size of 0%. .
5 to 5 μm, and the difference in refractive index from the translucent resin is 0.02
An anti-glare film, characterized in that it is contained in an amount of 3 to less than 30 parts by weight with respect to 100 parts by weight of the translucent resin. 2. The anti-glare layer according to claim 1, wherein the anti-glare layer has a haze value of 1.
0% or more, less than 40%, transmission sharpness of 50 or more, and a variation in luminance of transmitted light observed from the front of 0.3 V
Anti-glare film characterized by being less than. 3. The anti-glare layer according to claim 1, wherein
An antiglare film comprising 5 parts by weight or less of fine particles of cohesive silica. 4. The antiglare film according to claim 1, wherein the light-transmitting resin is an ionizing radiation-curable resin. 5. The antiglare film according to claim 1, wherein the transparent base film is a triacetyl cellulose film. 6. A polarizing element, and the anti-glare film according to claim 1, which is laminated on a surface of the polarizing element with a surface of the transparent substrate opposite to the anti-glare layer. Polarizing plate provided. 7. A light-transmitting display having a planar shape, a light source device for irradiating the light-transmitting display from the back, and a light-emitting device laminated on the surface of the light-transmitting display. A transmissive display device comprising: