WO2002052531A1

WO2002052531A1 - Plasma display filmand protection filter, and plasma display

Info

Publication number: WO2002052531A1
Application number: PCT/JP2001/011038
Authority: WO
Inventors: Masato Sugimachi; Shinji Saito; Tetsuo Kitano; Taichi Kobayashi
Original assignee: Bridgestone Corporation
Priority date: 2000-12-19
Filing date: 2001-12-17
Publication date: 2002-07-04

Abstract

A plasma display film improved in color reproducibility based on light emission characteristics of a plasma display characterized in that a resin layer with a layer thickness of 1-50νm which contains a dye having an absorption maximum wavelength in a range of 575-595nm is formed on a transparent film. A plasma display film improved in color reproducibility and having the function of preventing a near-infrared light emission remote controller from malfunctioning characterized in that a resin layer with a layer thickness of 1-50νm which contains a near-infrared absorption dye having an absorption maximum wavelength in a range of 800-1200nm and a dye having an absorption maximum wavelength in a range of 575-595nm is formed on a transparent film.

Description

Specification

Plasma display film and protective filter,

And plasma display [Background of the invention]

1. Technical field to which the invention belongs

The present invention provides a color reproducibility improving film for improving the image quality of a plasma display, a film having a function of preventing a malfunction of a near-infrared light emitting remote control of a plasma display, and a film having a function of preventing P-direction, and can be directly bonded to the front surface of a panel of a plasma display The present invention relates to a front protection filter installed on the front of a film and a panel, and a plasma display.

2. Description of related prior art

In the past, cathode ray tube (CRT: cathode ray tube) displays were the mainstream display, but in recent years, thin displays (FPDs: flat panel displays) have been developed and commercialized. ing. As an FPD, a liquid crystal display (LCD: Liquid Crystal Display 1 ay) has been widely used by taking advantage of its features of thinness, light weight, and low power consumption. A plasma display (PDP: P1 as ma Display Panel), which is thin and advantageous for large screens, is also attracting attention.

For example, a DC-type plasma display selectively discharges and emits phosphors in a large number of display cells separated between two glass plates. Auxiliary cells and the like are arranged, and each display cell has a basic structure in which a red phosphor, a green phosphor, and a blue phosphor are provided on the inner wall in a film shape. These phosphors emit light when a voltage is applied to the cathode, display anode, and auxiliary anode to display an image.

For this reason, generation of electromagnetic waves of several kHz to several GHz cannot be avoided from the front of the PDP due to voltage application, discharge, light emission, and the like. There is concern that the electromagnetic waves generated from this PDP may affect the human body and other electronic devices. Is usually provided with an electromagnetic wave shielding filter. In order to prevent leakage of electromagnetic waves, an integrated material in which a conductive mesh material such as a wire mesh is interposed between transparent substrates (such as an acrylic plate) is generally used.

Filters used in PDPs must not only prevent the leakage of electromagnetic waves, but also have high transmittance of visible light and excellent antireflection properties. One of the major issues is improving color reproducibility.

For example, Japanese Patent Application Laid-Open No. Hei 9-922162 discloses that a first optical filter provided for each cell and corresponding to three primary colors and a discharge light energy of a discharge gas (maximum energy: 585) nm), a PDP with a second optical filter having transmittance characteristics that reduces the thickness of the silica thin-film sheet as the second optical filter.

Also, Japanese Patent Application Laid-Open No. 11-231301 discloses that in a PDP or the like, an increase in the amount of light in a wavelength region at a boundary between a red region and a green region and at a boundary between a green region and a blue region is suppressed. Therefore, a color purity correction filter comprising a polymer containing a phosphate group and a neodymium ion is disclosed.

[Summary of the Invention]

An object of the present invention is to provide a film having improved color reproducibility based on the emission characteristics of a plasma display.

It is a further object of the present invention to provide a film having not only the improved color reproducibility described above but also a function of preventing malfunction of a near-infrared light emitting remote controller of a plasma display.

Another object of the present invention is to provide the above-mentioned film which can be directly bonded to the front surface of a panel of a plasma display, a front protective filter provided on the front surface of the panel made of the above film, and a plasma display provided with these films or filters. Is to do.

In the present invention, a resin layer having a layer thickness of 1 to 5 μm and containing a dye having an absorption maximum wavelength at 575 to 595 nm is formed on a transparent film. The light transmittance of the above film at 585 nm is preferably 50% or less. Preferred dyes used above are at least one selected from cyanine dyes, squarylium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and polyazo dyes, and particularly preferred dyes are cyanine dyes. It is a dye or a squarylium dye. It is preferable that the half width of the absorption maximum wavelength of the dye is 40 nm or less.

It is preferable that the dye-containing resin layer is formed by coating. The present inventors have repeated studies on a material that selectively absorbs unnecessary light emission derived from neon gas of a plasma display, and have found that color reproducibility can be improved by using a specific dye. From the study, for example, a film containing a selective absorption dye is used.However, in a method in which the dye is mixed with a film resin to form a film by extrusion molding, the resin temperature is set to at least 200 ° C or more. They discovered that they needed to be melted, and the pigments could be degraded or discolored even in a short time, and they found that the coating method was preferable.

Further, the present invention provides at least one kind of near-infrared absorbing dye (A dye) having an absorption maximum wavelength at 800 to 1200 nm and a dye having an absorption maximum wavelength at 575 to 595 nm. (Pigment B) A film for a plasma display, characterized in that a resin layer having a layer thickness of 1 to 50 microns containing at least one kind of (B dye) is formed on a transparent film (transparent substrate).

The above film improves both color reproducibility and near-infrared light emitting remote control malfunction prevention.

The light transmittance of the above film at 585 nm is preferably 50% or less. Preferred B dyes are at least one selected from cyanine dyes, squarylium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and polyazo dyes, and particularly preferably cyanine dyes or squarylium dyes. Is prime. Further, the half width at the absorption maximum wavelength of the B dye is preferably 40 nm or less. On the other hand, preferred A dyes are phthalocyanine dyes, metal complex dyes, nickel dithiolene complex dyes, cyanine dyes, squarylium dyes, polymethine dyes, azomethine dyes, azo dyes, polyazo dyes, and dimonium. Dyes, amidium dyes, and anthraquinone dyes, and particularly preferably at least one selected from nickel dithiolene complex dyes, dimodium dyes, and phthalocyanine dyes . Further, as described above, it is preferable that the pigment-containing resin layer is formed by coating.

The present invention still further relates to a front protective filter for a plasma display, which is provided with an antireflection layer on one side of the above-mentioned film via an adhesive layer.

A front protective filter for a plasma display bonded to a transparent substrate is preferable. Visible light transmittance 35. /. As described above, the above-mentioned front protective filter for a plasma display having a near-infrared transmittance of 850 to 1000 nm of 15% or less and a transmittance of 585 nm of 35% or less is preferable.

Further, the present invention is also a plasma display having the protective filter film on the front surface.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of one example of a plasma display to which a film of the present invention is attached.

FIG. 2 is a cross-sectional view of one example of a plasma display having a protective filter of the present invention on the front surface.

FIG. 3 is an absorption spectrum of squarium dye I.

FIG. 4 is an absorption spectrum of squarylium dye II.

FIG. 5 is an absorption spectrum of cyanine dye III.

FIG. 6 is a transmission spectrum of the film obtained in Example 1.

FIG. 7 is a transmission spectrum of the film obtained in Example 2.

FIG. 8 is a transmission spectrum of the film obtained in Example 3.

FIG. 9 is a transmission spectrum of the film obtained in Example 4.

FIG. 10 is a transmission spectrum of the film obtained in Example 5.

FIG. 11 is a transmission spectrum of the film obtained in Example 6.

FIG. 12 is a transmission spectrum of the film obtained in Example 7. [Detailed description of the invention]

As described above, the film of the present invention has a basic structure in which a resin layer having a layer thickness of 1 to 50 μm containing a dye having an absorption maximum wavelength at 575 to 595 nm is formed on a transparent film. Structure or at least one kind of near-infrared absorbing dye (A dye) having an absorption maximum wavelength at 800 to 1200 nm and dye (B dye) having an absorption maximum wavelength at 575 to 595 nm It has a structure in which a resin layer with a layer thickness of 1 to 50 microns is formed on a transparent film (transparent substrate).

In general, the resin layer is formed by uniformly coating a coating solution containing an organic solvent, a binder resin, and a dye on a transparent film, and then evaporating the solvent to form a film containing a dye having a thickness of! Thus, a film with little deterioration can be produced without being exposed to high temperatures. Alternatively, a mixture containing a binder resin and a pigment may be formed into a pigment-containing sheet by extrusion molding, calendering, or the like and laminated on a transparent film, or the mixture may be directly laminated on a transparent film.

Examples of the binder resin forming the resin layer include, but are not limited to, acrylic resin, polycarbonate resin, and ABS resin represented by polymethyl methacrylate (PMMA). Particularly, an acrylic resin is preferable. Examples of the material of the transparent film serving as the transparent substrate include polyester (eg, polyethylene terephthalate), polycarbonate, acrylic resin, and the like. Particularly, polyester is preferable. The thickness of the transparent film is generally in the range of 5 to 600 111, preferably in the range of 100 to 100 μιη.

In the present invention, as the selective absorption dye for neon emission used for cutting unnecessary light peculiar to neon gas, a dye (or B dye) having an absorption maximum wavelength at 575 to 595 nm is used in the present invention. Used. This selective absorption dye needs to have selective absorption of neon emission near 585 nm and small absorption at other visible light wavelengths. 5595 nm, particularly those having a half width of absorption spectrum of 40 nm or less are preferably used. As the selective absorption characteristics, it is particularly desirable that the transmittance of a film having a wavelength of 585 nm is 50% or less. Examples of the above dyes include cyanine dyes, squarylium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and polyazo dyes. Particularly preferred are cyanine dyes and squarylium dyes. Ma These dyes can be used alone or in combination. The dye content in the resin layer is preferably 0.05 to 1.0 g ZmS, and particularly preferably 0.05 to 0.5 g / m2.

Of course, a coloring pigment, an ultraviolet absorber, and an antioxidant may be further added as long as the optical properties are not significantly affected.

Among the fluorescent emission colors of the plasma display, the peak near 590 nm is close to vermilion, which causes deterioration of color reproducibility, and causes poor color purity and color reproducibility. In the present invention, in order to improve this, the peaks around the wavelengths of 590 and 600 nm are offset by using the above-mentioned specific dye, thereby improving the redness of the red spectrum. ing.

When using the A dye, which is a near-infrared absorbing dye having an absorption maximum wavelength of 800 to 1200 nm in combination with the above B dye, phthalocyanine dyes and metal complex dyes that can be used as the A dye , Nickel dithiolene complex dye, cyanine dye, squarylium dye, polymethine dye, azomethine dye, azo dye, polyazo dye, dimodium dye, amidium dye, anthraquinone Dyes, and particularly preferred are nickel dithiolene complex dyes, dimodium dyes, and phthalocyanine dyes. Among them, a combination of a nickel dithiolene complex dye and a dichromium dye, a combination of a phthalocyanine dye and a dichromium dye, and a combination of a cyanine dye and a dichromium dye have improved light resistance and improved durability. Is preferred. These dyes can be used alone or in combination. The content of the above dye is preferably from 0.05 to 1.0 g Zm ² , and particularly preferably from 0.05 to 0.5 g_ / m 2.

Among the A dyes, a cyanine dye and a dymium dye represented by the following general formula are particularly preferable.

The cyanine dye is represented by the general formula (1).

General formula (1):

In the formula, A represents a divalent linking group containing an ethylene group, R ¹ and R ² represent a monovalent group containing a carbon atom, and X 1 is a monovalent negative ion.

A in the general formula (1) is represented by the following general formulas (2) to (4) in that it is excellent in blocking near-infrared rays, has excellent transparency in visible light, and has good tint. It is preferably one of the following groups.

General formulas (2) to (4):

(2) (3) (4)

—In the general formulas (2) to (4), Y represents an alkyl group, a diphenylamino group, a halogen atom or a hydrogen atom.

In the general formula (1), a specific example when Α is the general formula (3) is shown in the following general formula (5), and a specific example when A is the general formula (4) is shown in the following general formula (6). Specific examples in which A is the general formula (2) are shown in the following general formula (7).

In the general formula (1), examples of R ¹ and R ² include an alkyl group, an aryl group, an alkoxy group, an alkoxycarbonyl group, a sulfonylalkyl group, and a cyano group. Examples of X- is, I-, B r-, C l O 4 _, BF 4 one, PF ₆ one, S b F ₆ _{_{one, CH 3 S0 4 -, N0}} 3 one, CH ₃ - C ₆ H ₄ — S〇 ₃ One can be mentioned.

The dimodime dye is represented by the general formula (I) or (Π).

2+

■ 2X "

(I)

—In the general formulas (I) and (II), R ^{7 to} R ^{1 (3} represents an alkyl group, an aryl group, a group having an aromatic ring, a hydrogen atom or a halogen atom, and X_ represents a monovalent negative Is an ion, and Y ² — is a divalent negative ion

Examples of X- of the general formula ^{(I), I _, B} r-, C 10 4 -, BF 4 -, PF 6 -, SbF 6 -, inorganic ions and the like, CH _₃ COO-, CF ₃ COO - organic carboxylic acid ion such as benzoate ion, CH ₃ S_〇 ₃ -, CF ₃ S0 ₃ -, may be mentioned benzenesulfonic acid ion, an organic sulfonate ion such as naphthalene sulfonic acid ion. As Y ² — in the general formula (II), an aromatic disulfonic acid ion having two sulfonic acid groups is preferable, for example, naphthalene-1,5-disulfonic acid, R acid, G acid, H acid, benzoyl H acid (A benzoyl group is bonded to the amino group of H acid), p-chloro benzoyl H acid, p-toluenesulfonyl H acid, chloro H acid (the amino group of H acid is substituted with chlorine atom), chloro Acetyl H acid, Methanyl γ acid, 6-sulfonaphthinole γ acid, C acid, ε acid, 'ρ-toluenesulfonyl R acid, naphthalene-1,6-disulfonic acid, 1-naphthol-1,4,8-disulfonic acid, etc. Naphthalenedisulfonic acid derivatives, carbonyl J acid, 4,4'-diaminostilbene-1,2, -disonolefonic acid, diJ acid, naphthalic acid, naphthalene-2,3-dicarboxylic acid, diphenic acid, stilbene-1,4 4 '— Zika Levonic acid, 6-sulfo-2-oxy-3-naphthoic acid, anthraquinone-1,8-disulphonic acid, 1,6-diaminoanthraquinone-1,2,7-disnoroleic acid, 2- (4-sulfophenyl) -1-6- Aminobenzotriazole-5-snolephonic acid, 6- (3-Methyl-15-pyrazolonyl) mononaphthalene-1,3-disulfonic acid, 1-naphthol-16- (4-Amino-3-sulfo) anilino-1 3- Examples include ion such as sulfonic acid. Naphthalenedisulfonic acid is preferred. When a plurality of near-infrared absorbing dyes having an absorption maximum wavelength of 800 to 1200 nm are used in combination, when the dyes have different solubility, or when mixed, the reaction between the dyes may occur. If this occurs, if the heat resistance, moisture resistance, etc., are reduced, all the near-infrared absorbing dyes need not be contained in the same layer, and may be formed as separate layers.

In the film of the present invention (especially in the case of a film having the above-mentioned near-infrared absorption properties as well), as the near-infrared absorption properties, the transmittance in the wavelength range of 850 to 100 nm is preferably 2 Q% or less. Is preferably 15% or less. As the selective absorption characteristics, the transmittance at 585 nm is preferably 50% or less, particularly preferably 35% or less. Such a film is particularly preferable as a front protective filter for a plasma display.

When this film is directly bonded to a plasma display, general adhesives and adhesives (for example, acrylic adhesives using butyl acrylate, etc .; rubber adhesives; thermoplastic elastomers such as SEBS and SBS) TPE-based adhesive). When an anti-reflection film is used to improve image quality, a multilayer anti-reflection layer may be formed directly on the surface of the film opposite to the dye-containing resin layer. You can stick them together. A protective filter in which a film on which an antireflection film is formed is adhered to one surface of a plasma display film with an adhesive is preferable.

The present invention also provides a filter that can be directly attached to a PDP surface. This filter preferably has an anti-reflection function, an anti-static function, a near-infrared cut function, and an ultraviolet absorption function, and has a pressure-sensitive adhesive (or adhesive) on the back surface, so that the surface of the light-emitting panel can be protected. Can be attached to the glass surface.

The above film can be used as a front protective filter for a plasma display by bonding it to a transparent substrate having a thickness of about 2 to 6 mm. As the transparent substrate, a glass, acrylic plate, or polycarbonate plate is preferable. If anti-reflection properties, electromagnetic wave shielding properties, and near-infrared power are required as functions of the front protective filter, anti-reflection (AR) film, anti-glare film, transparent conductive film, conductive mesh, near-infrared absorbing film May be attached. The final optical characteristics of this protective filter are adjusted so that the visible light characteristics are 35% or more and the near-infrared absorption characteristics are 15% or less in the range of 850 nm to 100 nm. It is desirable. Further, as the selective absorption characteristics, it is desirable that the transmittance at 585 nm is 35% or less.

In the plasma display of the present invention, a partition wall, a display cell, a trapping cell, and the like are disposed between a windshield and a glass, and a red phosphor, a green phosphor, and a blue phosphor are coated on the inner wall of each display cell. FIG. 1 and FIG. 2 show schematic cross-sectional views of one example of the windshield having the basic structure provided in the shape of FIG. In FIG. 1, a film 3 of the present invention is affixed to the surface of a windshield 2 of a plasma display 1. In FIG. 2, the protective filter 5 of the present invention is arranged on the front surface of the windshield 2 of the plasma display 1 and attached and fixed by a known means. Example

[Examples 1 to 3]

To a mixed solvent of tetrahydrofuran, methinoleethyl ketone, tonolene and cyclohexanone (mass ratio, 2: 1: 2: 1), add an acrylic resin (polymethyl methacrylate: PMMA) to 8% by weight. Dissolved to form a paint base. A selective absorption dye was added to the base to obtain a paint. This paint was uniformly applied to a transparent polyester film by a gravure coater, and the solvent was evaporated in a drying oven at 120 ° C. to form a resin layer having a thickness of 5 μm. The amount of the dye was about 0.15 g / m2.

As a selective absorption dye, a squarium dye I in Example 1, a squarium dye II in Example 2, and a cyanine dye III in Example 3 were used to form a dye-containing resin layer having a thickness of 5 μm as described above.

FIG. 3, FIG. 4, and FIG. 5 are graphs showing absorption spectra of square dyes I and II and cyanine dye III, respectively.

FIG. 6, FIG. 7, and FIG. 8 are graphs showing transmission spectra of the films of Examples 1 to 3, respectively. As can be seen from FIGS. 6 to 8, all of the film transmission spectra had characteristics in which the transmittance was significantly reduced at 575 to 595 nm.

Therefore, the red-based emission spectrum has a peak near the wavelength of 590 to 600 nm in addition to a peak near the wavelength of 630 nm, which originally corresponds to true red. For example, this peak near 590 nm is close to orange and causes color reproducibility to deteriorate. In addition, the green and blue emission spectrums also include red-based noise having a high wavelength, which deteriorates color reproducibility. These are spectra specific to plasma emission, and it is impossible to control the emission state by changing the design of the plasma display panel itself. The filter of the present invention absorbs the orange spectrum in particular, makes it possible to improve the light emission spectrum from the plasma display panel to improve the color purity and the color reproducibility. .

[Examples 4 to 7]

Polymethyl methacrylate (PMM A) is dissolved in a mixed solvent of tetrahydrofuran ', methyl ethyl ketone, toluene and cyclohexanone (mass ratio, 2: 1: 2: 1) so as to be 8% by weight. Was made.

To this base, appropriate amounts of a selective absorption dye and a near-infrared absorption dye were added in an appropriate amount to obtain a paint. This paint was uniformly applied to a transparent polyester film by a gravure coater, and the solvent was evaporated in a drying oven at 120 ° C. to form a resin layer having a thickness of 5 μm. The amount of the pigment was about 0.13 g / m2.

The selective absorbing dyes and near infrared absorbing dyes used in Examples 4 to 7 are as follows:

That is, in Example 4, squarylium dye I and dimonium dye (mass ratio, 1: 8),

In Example 5, the squalium dye I and the nickel dithiolene dye were mixed with the dimonium dye (mass ratio, 1: 1: 8),

In Example 6, the squalium dye II and the phthalocyanine dye and the dimethyl dye (mass ratio, 1: 1: 8),

In Example 7, cyanine dye III and cyanine dye and dimonium dye (mass ratio, 1: 1: 8) were used. The absorption spectra of the squarium dyes I and II and the cyanine dye III are the same as those shown in FIGS. 3, 4, and 5.

FIG. 9, FIG. 10, FIG. 11 and FIG. 12 are graphs showing transmission spectra of the films obtained in Examples 4 to 7, respectively. It was found to be excellent in properties, and also excellent in the effect of absorbing near-infrared rays, and reduced the effect on peripheral equipment.

Claims

The scope of the claims

1. A plasma characterized in that a resin layer with a layer thickness of 1 to 50 micron containing a dye having an absorption maximum wavelength at 575 to 595 nm is formed on a transparent film

2. The film for plasma display according to claim 1, which has a light transmittance at 585 nm of 50% or less. 3. The plasma display film according to claim 1, wherein the dye is at least one selected from the group consisting of cyanine dyes, squarylium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and polyazo dyes.

4. The method according to claim 1, wherein the dye is a cyanine dye or a squarylium dye.

5. The plasma display film according to claim 1, wherein the dye-containing resin layer is formed by coating. 6. The plasma display film according to claim 1, wherein a half width of the absorption maximum wavelength is 40 nm or less.

7. The plasma display film according to claim 1, wherein the resin of the dye-containing resin layer contains an acrylic resin.

8. The film according to claim 1, wherein the transparent film is made of polyester.

9. Near-infrared absorbing dye (A dye) having absorption maximum wavelength at 800 to 1200 nm And a resin layer with a layer thickness of 1 to 50 microns containing at least one kind of dye and at least one kind of dye (B dye) having an absorption maximum wavelength at 575 to 595 nm. A film for a plasma display, which is formed thereon. 10. The plasma display film according to claim 9, which has a light transmittance at 10.585 nm of 50% or less.

11. The plasma of claim 9, wherein the B dye is at least one selected from cyanine dyes, squarylium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and polyazo dyes.

12. The plasma data according to claim 9, wherein the B dye is a cyanine dye or a squarium dye.

13. The plasmid according to claim 9, wherein the half maximum width of the absorption maximum wavelength of the 13.3 B dye is 40 nm or less.

14. A dye is a phthalocyanine dye, metal complex dye, nickel dithiolene complex dye, cyanine dye, squarylium dye, polymethine dye, azomethine dye, azo dye, polyazo dye, zimo2 10. The method according to claim 9, which is at least one member selected from the group consisting of a dye, an amide dye, and an anthraquinone dye.

15. The plasma according to claim 9, wherein the A dye is at least one selected from a nickel dithiolene complex dye, a dimodium dye, and a phthalocyanine dye.

6. The plasma display according to claim 9, wherein the dye-containing resin layer is formed by coating.

1 7. The plasma display film according to claim 9, wherein the resin of the pigment-containing resin layer contains an acrylic resin. 18. The plasma display film according to claim 9, wherein the transparent film is made of polyester.

19. A front protective filter for a plasma display, comprising a film according to any one of claims 1 to 18 and a reflection preventing layer provided on one side of the film via an adhesive layer.

20. A front protective filter for a plasma display, wherein the film according to any one of claims 1 to 18 is bonded to a transparent substrate.

21. The plasma display according to claim 19 or 20, wherein the visible light transmittance is 35% or more, the near infrared transmittance from 850 to 1000 nm is 15% or less, and the transmittance at 585 nm is 35% or less. Front protection filter.

22. Bra equipped with the protective filter according to any one of claims 19 to 21 on the front surface

Claims of amendment

[May 9, 2002 (09.05.02) Accepted by the International Bureau: Claims 7

Withdrawn; claims 1, 19 and 20 at the time of filing were amended;

Other claims remain unchanged. (2 pages)]

1. (After correction) Including dye and acryl resin having absorption maximum wavelength at 575 to 595 nm. A film for a plasma display, wherein a resin eyebrow of ~ 50 microns is formed on a transparent film.

2. The film for plasma display according to claim 1, wherein the light transmittance of 585 nm is 50% or less. 3. The film for plasma display according to claim 1, wherein the color is at least one selected from cyanine dyes, squarium dyes, anthraquinone dyes, phthalocyanine dyes, polymethine dyes, and borazo dyes. .

4. The film is a plasma display film according to claim 1, wherein the dye is a shear dye, a nin dye, or a squarylium dye.

5. The plasma display film according to claim 1, wherein the dye-containing resin layer is completely formed by coating. 6) The plasma display according to claim 1, wherein the half-width of the absorption maximum wavelength is 40 nm or less.

7 .. (Delete)

8. The plasma display film according to claim 1, wherein said transparent film is made of polyester.

Near-infrared absorbing dye (A dye) having an absorption maximum wavelength at 9,800 to 1200 nm

Amended paper (Article 19 of the Convention) 17., The plasma display of claim 9, wherein the resin of the dye-containing resin layer contains an acrylic resin. 18. The plasma display film of claim 9, wherein the transparent film is made of polyester.

19 (After amendment) Claim ¾: A front protective filter for a plasma display, comprising an antireflection layer via an adhesive layer on one side of the film according to any one of! To 6 and Claims 8 to 18.

20. (After correction) A front protective filter for a plasma display, wherein the film according to any one of claims 1 to 6 and claims 8 to 18 is bonded to a transparent S plate. 21.The plasma display according to claim 19 or 20, wherein the visible light transmittance is 35% or more, the transmittance of 850 nm: near infrared ray at i 000 nm is 15% or less, and the transmittance of 585 nm is 35% or less. Front protection filter.

22. A plasma display comprising a protective filter according to any one of claims 1 to 21 on a front surface.

Amended paper (Article 19 of the Convention) Claims for explanations under Article 19 (1) of the Convention Scope of claim: Item (!) Restricts the use of the acryl resin described in claim 7 as the resin for the resin layer specified in paragraph (1). The structure of the resin layer was clarified. Further, there is no description in the cited examples that an acryl resin is used in the color-containing resin layer of the film for a plasma display having the above-mentioned specific dye. Claims 9] and 20] are deleted from the deleted claim 7 (

Illum also quoted it, so I supplemented it for the correction.