WO2006088056A1 - 近赤外線吸収フィルター、プラズマディスプレイ用光学フィルター及びプラズマディスプレイパネル - Google Patents
近赤外線吸収フィルター、プラズマディスプレイ用光学フィルター及びプラズマディスプレイパネル Download PDFInfo
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- WO2006088056A1 WO2006088056A1 PCT/JP2006/302646 JP2006302646W WO2006088056A1 WO 2006088056 A1 WO2006088056 A1 WO 2006088056A1 JP 2006302646 W JP2006302646 W JP 2006302646W WO 2006088056 A1 WO2006088056 A1 WO 2006088056A1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Definitions
- the present invention relates to a near-infrared absorption filter that blocks near-infrared rays, an optical filter for plasma display, and a plasma display panel.
- PDP plasma display panels
- This PDP emits visible light of red, blue, and green by exciting ultraviolet light by discharge in an inert gas such as neon or xenon and applying it to a phosphor.
- an inert gas such as neon or xenon
- electromagnetic waves of various wavelengths generated only by ultraviolet rays are generated by discharge in an inert gas.
- the electromagnetic wave includes light having a wavelength in the near-infrared region often used for operation of a remote controller. If this wavelength of light is emitted from the PDP, the remote controller will malfunction, affecting various home appliances. It is also said to have an adverse effect on infrared communication between electronic devices.
- a near-infrared filter that shields near-infrared light on the front of the plasma display panel.
- This near-infrared filter has a highly transparent plastic film surface coated with a near-infrared absorber, polymer noinder or other additives dissolved or dispersed in an organic solvent, dried, and the solvent removed. Generally, it is manufactured by removing (see Patent Document 1).
- Patent Document 2 proposed a method for producing a filter by kneading a near-infrared absorber into a resin instead of a coating and extruding it.
- near-infrared absorbers for high-quality displays are dyes with low heat resistance, so when they are kneaded into polyester and extruded, the dye deteriorates (decomposes and deteriorates).
- the original near-infrared absorptivity decreases, and part of the visible light region is absorbed as a result of the deterioration of the dye. I have come to understand that the object color is unfavorable.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-121828
- Patent Document 2 JP 2002-286929 A
- Non-Patent Document 3 Journal of the Institute of Image Information and Television Engineers Vol. 51 NO. 4 P. 459—463 (1997) Patent Document 4: Japanese Patent Laid-Open No. 2004-10875
- the first object of the present invention is to focus on the melting point of polyester and suppress the deterioration (decomposition and alteration) of the near-infrared absorber, thereby reducing the near-infrared absorption filter and the optical filter for plasma display. And maintaining the performance required for plasma display panels over a long period of time.
- the second object of the present invention is to suppress the deterioration (decomposition and alteration) of the near-infrared absorber by providing an independent near-infrared absorption filter itself with an ultraviolet-cut function, and to absorb near-infrared rays.
- the purpose is to maintain the performance of the filter and the plasma display panel and to improve the manufacturing efficiency.
- a third object of the present invention is to provide not only a near-infrared cut function but also an ultraviolet cut function in a single independent plasma display optical filter itself having an image quality correction layer.
- the purpose is to suppress the deterioration (decomposition and alteration) of near-infrared absorbers, maintain the performance required for plasma display optical filters and plasma display panels, and improve manufacturing efficiency.
- a near-infrared absorbing filter according to the first aspect of the present invention is a film in which a polyester having a near-infrared absorber (for example, a dim-um salt compound) is biaxially oriented. Has a melting point of 230 ° C or lower.
- a near-infrared absorber for example, a dim-um salt compound
- the melting point of the polyester was considered as follows. Even near-infrared diatom salt compound with improved heat resistance accelerates decomposition at 260 ° C or higher and has excellent heat resistance. With an absorbent, decomposition is accelerated above 240 ° C. Melt extrusion by an extruder is usually performed at a melt line temperature obtained by adding a margin temperature (about 30 ° C) to the melting point of polyester. Therefore, the upper limit of the melting point of the polyester in the dimoyuum salt compound having improved heat resistance is 230 ° C.
- the lower limit of the melting point of the polyester needs to be higher than the maximum temperature at the time of use of the filter.
- a temperature lower by 50 ° C than the melting point is considered as the continuous use temperature.
- the maximum temperature is said to be about 120 ° C, so the lower limit of melting point is about 170 ° C.
- a higher melting point is preferable. In practice, 200 ° C or higher is preferable.
- the melting point of this polyester needs to be 230 ° C or lower, preferably 170 ° C or higher and 230 ° C or lower, more preferably 200 ° C or higher and 225 ° C or lower. Below, it is still more preferably 210 ° C or higher and 220 ° C or lower.
- this near-infrared absorption filter can be used not only for plasma display panels but also for base films for transparent touch panels and prism sheets used in liquid crystal display devices, and for antistatic and antireflection. It can be used for a base film of a protective film provided with a functional layer such as an electromagnetic wave shield.
- the filter according to the first aspect can be processed at a temperature lower than the decomposition temperature of the near-infrared absorber, so that deterioration (decomposition and alteration) of the near-infrared absorber is suppressed and the near-infrared absorber is suppressed.
- the line absorption ability can be maintained.
- An optical filter for plasma display includes a near-infrared cut layer having a polyester power containing a near-infrared absorber and a compound that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm.
- a biaxially oriented film that is integrally formed by a coextrusion method in which these layers are melt-extruded together with an extrusion machine force, and has a melting point of these polyesters. It is set below 230 ° C.
- the near-infrared cut layer and the image quality correction layer may be laminated in direct contact with each other or indirectly laminated with another layer interposed therebetween.
- the lamination in the coextrusion method can reduce the number of lamination processes, simplify the production of optical filters for plasma displays with UV-cutting functions, and use a molten resin melt line that does not contact air.
- the manufacture is completed, and in the melt line, the foreign matter removal filter can be used to keep the product in a tailline, so that production management can be facilitated.
- the plasma display panel can include the near-infrared absorption filter of the first aspect or the optical filter for plasma display of the second aspect as a part of a plurality of laminated bodies. In this case, in the plasma display panel, it is possible to maintain a color tone that is favorable in appearance.
- the visible light transmittance of 380 to 780 nm of the optical filter is 30 to 90%, preferably 50 to 90% in the filter of the first embodiment. More preferably, it can be controlled to 70 to 90%.
- the visible light transmittance can be controlled to 20 to 80%, preferably 30 to 70%, more preferably 35 to 60%.
- the near-infrared transmittance of the optical filter 820 ⁇ : L lOOnm is both in the filters of the first and second modes. It is possible to control to 0.1 to 19%, preferably 0.1 to 9%, more preferably 0.1 to 4%.
- the near-infrared absorption filter according to the third aspect of the present invention includes a near-infrared cut layer having a polyester force containing a near-infrared absorber (for example, a dimoyuum salt compound) and an ultraviolet absorber. It is a biaxially oriented film in which a UV-cutting layer made of a polyester film containing bismuth is laminated.
- a near-infrared absorber for example, a dimoyuum salt compound
- the near-infrared absorption filter according to the fourth aspect of the present invention includes a near-infrared cut layer having a polyester force containing a near-infrared absorber (for example, a dimoyuum salt compound) and an ultraviolet absorber. And a UV-cut layer made of polyester that contains polyester. It is a biaxially oriented film that is integrally formed and laminated by a coextrusion method in which both the extrusion machine forces are melt extruded.
- the near-infrared cut layer and the ultraviolet cut layer may be laminated in direct contact with each other, or may be laminated indirectly with another layer interposed.
- the near-infrared absorbing filter according to the fifth aspect of the present invention is a first biaxial filter having a near-infrared cut layer that also has a polyester power having a near-infrared absorber (for example, a dimoyuum salt compound). It is a laminate of an oriented film and a second biaxially oriented film having an ultraviolet cut layer made of a polyester cover having an ultraviolet absorber. The first film and the second film may be laminated in direct contact with each other or may be laminated indirectly with another film interposed therebetween.
- a near-infrared absorber for example, a dimoyuum salt compound
- the near-infrared absorption filter itself also has an ultraviolet-cut function, so that deterioration (decomposition and alteration) of the near-infrared absorber is suppressed and the near-infrared absorption ability is maintained. Can do.
- the lamination in the coextrusion method as in the fourth aspect it is possible to simplify the production of a near-infrared absorption filter having an ultraviolet cut function by reducing the number of lamination steps, and to melt without contact with air. Since it is completed with a resin melt line, and it can be kept clean with a foreign matter removal filter in the melt line, production management can be facilitated.
- the melting point of the polyester of the near infrared cut layer may be set to 230 ° C. or lower. The reason is the same as in the first embodiment.
- the near-infrared absorption filter of the third to fifth aspects may be applied to a plasma display panel. In that case, in order to maintain a color tone that is preferable in appearance, it is preferable to dispose the ultraviolet cut layer outside the near infrared cut layer.
- An optical filter for plasma display includes a near-infrared cut layer made of polyester containing a near-infrared absorber and an ultraviolet cut layer made of polyester containing an ultraviolet absorber. And an image quality correction layer made of polyester containing a compound that absorbs visible light having an absorption maximum wavelength in the range of 560 to 600 nm.
- An optical filter for plasma display includes a near-infrared cut layer made of polyester containing a near-infrared absorber and a polyester containing an ultraviolet absorber.
- the near-infrared cut layer, the ultraviolet cut layer, and the image quality correction layer may be laminated in direct contact with each other, or may be laminated indirectly with another layer interposed.
- An optical filter for plasma display includes an ultraviolet cut layer having a polyester strength containing an ultraviolet absorber, and a compound that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm.
- a biaxially oriented film having a near-infrared cut layer made of a polyester cover is laminated. The two films may be laminated in direct contact with each other, or may be laminated indirectly with another film interposed.
- An optical filter for plasma display includes a near-infrared cut layer having a polyester power containing a near-infrared absorber, and a compound that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm.
- a biaxially oriented film that is integrally formed and laminated by a co-extrusion method in which these layers are melt-extruded together with an extrusion machine force, and a polyester containing an ultraviolet absorber.
- a biaxially oriented film having an ultraviolet cut layer comprising: The two films may be laminated in direct contact with each other or indirectly through another film.
- the optical filter for a plasma display having an image quality correction layer itself has a near-infrared cut function and an ultraviolet cut function, the near-infrared absorber is deteriorated (decomposed or altered). In the visible light castle, the generation of a new absorption region due to the deterioration of the near-infrared absorber is suppressed, and the color reproduction performance of the filter can be maintained.
- the seventh aspect by performing lamination by a coextrusion method, By reducing the number, it is possible to simplify the production of optical filters for plasma displays with near-infrared cut and ultraviolet cut functions, and at the same time, complete the production with a melt-resin melt line that does not come into contact with air. The production control can be facilitated because the foreign matter removal filter can be kept clean in the line.
- the melting point of the polyester in the near infrared cut layer is preferably set to 230 ° C or lower. The reason is as described in the first embodiment.
- the visible light transmittance of the optical filter In order to maintain color reproducibility as a plasma display, it is desirable to set the visible light transmittance of the optical filter at 380 to 780 nm to 20 to 80%, preferably 30 to 70%, more Preferably it is 35 to 60%. Also, in order to prevent malfunction of the remote controller and adverse effects on infrared communication between electronic devices, it is desirable to set the near infrared transmittance of the optical filter at 800-11 OOnm to 0.1-19%. Preferably it is 0.1 to 9%, more preferably 0.1 to 4%.
- the UV transmittance of the optical filter at 370 nm to 0.01 to 5%, preferably 0.01 to 2 %, More preferably 0.01 to 1%.
- FIG. 1] (a) to (f) are explanatory views schematically showing a laminated structure of various near-infrared absorption filters.
- FIG. 2] (a) to (d) are explanatory views schematically showing the laminated structure of various optical filters for plasma display.
- FIG. 3 (a) to (f) are explanatory views schematically showing a laminated structure of various optical filters for plasma display.
- FIG. 4] (a) to (e) are explanatory diagrams schematically showing the laminated structure of various plasma display panels.
- FIG. 5 is a schematic view showing a film forming process by an extruder.
- FIG. 6 (a) to (g) are explanatory diagrams schematically showing a laminated structure of various near-infrared absorption filters.
- FIG. 7 (a) to (f) schematically show the laminated structure of various near infrared absorption filters.
- FIG. 8] (a) to (b) are explanatory diagrams schematically showing the laminated structure of various plasma display panels.
- FIG. 9 (a) to (h) are explanatory views showing various optical filters for plasma display.
- FIG. 10 (a) to (c) are explanatory views showing various optical filters for plasma display.
- FIG. 11] (a) to (c) are explanatory views showing various plasma display panels.
- FIG. 12 is a schematic view showing a film forming process by an extruder.
- a near-infrared absorption filter 1 schematically shown in Fig. 1 (a) is an extruded single-layer film 2, which comprises a polyester containing a near-infrared absorber and predetermined particles uniformly mixed. Biaxially oriented.
- a dim-um salt compound can be used, but other existing ones are particularly limited as long as they have a maximum absorption wavelength of light of 800 to LlOOnm. is not.
- phthalocyanine compounds for example, phthalocyanine compounds, naphthalocyanine compounds, indoor phosphorus compounds, benzopyran compounds, quinoline compounds, anthraquinone compounds, squarylium compounds, nickel complex compounds, copper compounds, tungsten compounds, indium tin oxide, acid compounds ⁇ Antimony tin, ytterbium phosphate, and mixtures thereof may be employed.
- predetermined particles force capable of adopting silica particles having a diameter of several meters or other existing particles such as calcium carbonate particles may be adopted.
- the adhesion in a state in which the polyester film is wound can be reduced, and the polyester film can be made slippery.
- the melting point during extrusion is set to 230 ° C or less.
- a near-infrared absorption filter 1 schematically shown in Fig. 1 (b) is a mixture of a near-infrared cut layer 4 made of a polyester fiber in which a near-infrared absorber is uniformly mixed, and predetermined particles uniformly mixed.
- the co-extrusion method is a method in which a plurality of molten materials are extruded together from a die using an extruder, and is well known in the art.
- a near-infrared absorption filter 1 schematically shown in Fig. 1 (c) includes a near-infrared cut layer 4 made of a polyester fiber in which a near-infrared absorber and predetermined particles are uniformly mixed, and predetermined particles.
- a non-particle-containing layer 6 made of a polyester fiber is a two-layer biaxially oriented film 3 that is integrally molded by a coextrusion method and laminated.
- the near-infrared absorption filter 1 schematically shown in Fig. 1 (d) includes a near-infrared cut layer 4 made of a polyester fiber in which a near-infrared absorber and predetermined particles are uniformly mixed, and predetermined particles
- a particle-containing layer 5 made of a uniformly mixed polyester is a two-layer biaxially oriented film 3 that is integrally molded by a coextrusion method and laminated.
- the near-infrared absorption filter 1 schematically shown in Fig. 1 (e) includes a particle-containing layer 5 made of a polyester powder in which predetermined particles are uniformly mixed, and a polyester cover that does not contain predetermined particles.
- This is a three-layer biaxially oriented film 7 that is integrally molded by a coextrusion method and laminated.
- a near-infrared absorption filter 1 schematically shown in FIG. 1 (f) is disposed between a pair of particle-containing layers 5 having a polyester force in which predetermined particles are uniformly mixed, and both particle-containing layers 5.
- a near-infrared cut layer 4 consisting of a polyester fiber in which a near-infrared absorber is uniformly mixed is a three-layer biaxially oriented film 7 that is integrally formed and laminated by a co-extrusion method.
- the optical filter 8 for plasma display schematically shown in Fig. 2 (a) includes a near-infrared cut layer 4 comprising a polyester fiber in which a near-infrared absorber is uniformly mixed, an image quality corrector, and predetermined particles.
- the image quality correction layer 10 having a polyester force mixed uniformly with each other is a two-layer biaxially oriented film 9 which is integrally formed and laminated by a coextrusion method.
- This image quality correction agent is a power that employs a tetraazaporphyrin compound, which is a compound that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm, and other existing ones, and an absorption maximum at 560 to 600 nm.
- the compound is not particularly limited as long as it is a compound having a wavelength.
- a cyanine compound, a squarylium compound, an azo compound, and a phthalocyanine compound are used. May be.
- the near-infrared cut layer 4 is provided close to the main body of the plasma display panel (abbreviated as PDP). Is disposed.
- the optical filter 8 for plasma display schematically shown in Fig. 2 (b) is the same as that shown in Fig. 2 (a), but an image quality correction layer 10 is provided in the vicinity of the PDP body. This is different from the filter shown in Fig. 2 (a).
- the optical filter 8 for plasma display schematically shown in Fig. 2 (c) is a bilayer biaxial arrangement in which a near-infrared cut layer 4 and an image quality correction layer 10 are integrally molded by a coextrusion method and laminated. It is a direction film 9.
- the near-infrared cut layer 4 is a polyester cover in which a near-infrared absorber and predetermined particles are uniformly mixed.
- the image quality correction layer 10 also has a polyester power in which image quality correction agents are uniformly mixed.
- a near-infrared cut layer 4 is disposed in the vicinity of the PDP body.
- the optical filter 8 for plasma display schematically shown in Fig. 2 (d) is the same as that shown in Fig. 2 (c), but an image quality correction layer 10 is provided in the vicinity of the PDP body. This is different from the filter shown in Fig. 2 (c).
- An optical filter 8 for plasma display schematically shown in Fig. 3 (a) has an image quality correction layer 10, a particle-containing layer 5, and a near-infrared cut layer 4 integrally formed by a coextrusion method. This is a laminated three-layer biaxially oriented film 11.
- the image quality correction layer 10 is made of a polyester card in which an image quality correction agent is uniformly mixed.
- the particle-containing layer 5 also has a polyester force in which predetermined particles are uniformly mixed.
- the near-infrared cut layer 4 is disposed between the image quality correction layer 10 and the particle-containing layer 5 and is made of a polyester cover in which a near-infrared absorber is uniformly mixed.
- An image quality correction layer 10 is disposed in the vicinity of the PDP main body.
- the optical filter 8 for plasma display schematically shown in Fig. 3 (b) has the same force as that shown in Fig. 3 (a).
- the particle-containing layer 5 is disposed in the vicinity of the PDP body. It is different.
- the image quality correction layer 10 In the optical filter 8 for plasma display schematically shown in FIG. 3 (c), the image quality correction layer 10, the particle-free layer 6, and the near-infrared cut layer 4 are integrally formed by a coextrusion method. This is a three-layer biaxially oriented film 11 that is stacked in layers. Image quality correction layer 10
- a polyester cartridge in which an image quality correction agent and predetermined particles are uniformly mixed is obtained.
- Particle-free layer 6 Is a polyester cartridge containing no predetermined particles.
- the near-infrared cut layer 4 is disposed between the image quality correction layer 10 and the particle-free layer 6 and is made of polyester, in which a near-infrared absorber is uniformly mixed.
- An image quality correction layer 10 is disposed close to the PDP body.
- the optical filter 8 for plasma display schematically shown in Fig. 3 (d) is the same as that shown in Fig. 3 (c), but the particle-free layer 6 is disposed in the vicinity of the PDP body. This is different from the filter shown in Fig. (C).
- An optical filter 8 for plasma display schematically shown in Fig. 3 (e) has an image quality correction layer 10, a particle-containing layer 5, and a near-infrared cut layer 4 integrally formed by a coextrusion method.
- This is a laminated three-layer biaxially oriented film 11.
- the image quality correction layer 10 is made of a polyester cartridge in which an image quality correction agent and predetermined particles are uniformly mixed.
- the particle-containing layer 5 is made of a polyester cartridge in which predetermined particles are uniformly mixed.
- the near-infrared cut layer 4 is disposed between the image quality correction layer 10 and the particle-containing layer 5 and is made of a polyester cover in which a near-infrared absorber is uniformly mixed.
- An image quality correction layer 10 is disposed close to the PDP main body.
- the optical filter for plasma display schematically shown in Fig. 3 (f) is the same as that shown in Fig. 3 (e), but the particle-containing layer 5 is disposed in the vicinity of the PDP body. This is different from the filter in Fig. 3 (e).
- the plasma display panel 12 schematically shown in FIG. 4 (a) includes a single-layer first film 13 that is an antireflection layer and a single-layer first film that is an ultraviolet-absorbing pressure-sensitive adhesive layer as a plurality of laminates.
- the sixth film 19, the film 3, the fifth film 18, the fourth film 17, the third film 16, the glass substrate 15, the second film 14, and the first film 13 are sequentially laminated in the PDP body force. ing.
- the sixth film 19 is attached to the near-infrared cut layer 4 of the film 3.
- “attachment” means that the process paper is peeled off by applying and drying a liquid, bonding with an adhesive, or pasting and transferring what is applied to the process paper. It is a concept that includes cases, etc., and everything in the attached state is called a film in a broad sense. To do.
- the process paper refers to a paper or film coated with a release agent, or having good release properties and laminating resin.
- the plasma display panel 12 schematically shown in FIG. 4 (b) includes a plurality of laminates, the first film 13, the second film 14, the glass substrate 15, schematically shown in FIG. 4 (a), Including the third film 16 and the fourth film 17, and the seventh film 20 of a single layer which is an adhesive layer containing an image quality corrector, and the film 3 in the near-infrared absorption filter 1 shown in FIG. including.
- the film 3, the seventh film 20, the fourth film 17, the third film 16, the glass substrate 15, the second film 14, and the first film 13 are sequentially laminated in the PDP body force.
- the plasma display panel 12 schematically shown in FIG. 4 (c) includes, as a plurality of laminated bodies, the first film 13, the second film 14, the glass substrate 15, and the third film shown in FIG. 4 (a). 16, a fourth film 17, and a fifth film 18, and a film 9 in the optical filter 8 for plasma display shown in FIG. 2 (a).
- the film 9, the fifth film 18, the fourth film 17, the third film 16, the glass substrate 15, the second film 14, and the first film 13 are sequentially laminated.
- the plasma display panel 12 schematically shown in FIG. 4 (d) includes, as a plurality of laminated bodies, the first film 13, the second film 14, the glass substrate 15, and the third film shown in FIG. 4 (a). 16, the fourth film 17, and the fifth film 18, and the film 11 in the optical filter 8 for plasma display shown in FIG.
- the film 11, the fifth film 18, the fourth film 17, the third film 16, the glass substrate 15, the second film 14, and the first film 13 are sequentially laminated in the PDP body force.
- the plasma display panel 12 schematically shown in Fig. 4 (e) includes a plurality of laminates, the first film 13, the second film 14, the glass substrate 15, and the third film shown in Fig. 4 (a).
- 16 includes the fourth film 17 and includes the film 11 in the optical filter for plasma display 8 shown in FIG. 3 (e).
- the fourth film 17, the third film 16, the glass substrate 15, the film 11, the second film 14, and the first film 13 are sequentially laminated on the PDP body force.
- the image quality correction layer 10 of the film 11 is attached to the glass substrate 15! [Examples and Comparative Examples]
- polyester materials used in Examples 1 to 5 and Comparative Examples 1 and 2 below will be described.
- A Polyester material formed into pellets containing 600 ppm of silica particles polycondensed from ethylene glycol, isophthalic acid and terephthalic acid and having an average particle size of 2.2 microns. Melting point 206 ° C.
- B 184 parts by weight of 1,4-cyclohexanedicarboxylic acid (trans 98%), 158 parts by weight of 1,4-successed hexanedimethanol (67% trans), Ti (OC H) Of 6% pig by weight
- a polycondensation reaction is carried out with 0.9 part by weight of the sol solution, and the polymer obtained after the polycondensation reaction is extracted into water in the form of strands, and then the average particle size of 2.4 is added to the pelletized polyester material.
- the amorphous silica of the m were blended so that 0.1 wt 0/0, polyester materials into pellets and extruded into a strand. Melting point 220 ° C.
- D A general-purpose polyester material that is polycondensed from ethylene glycol and terephthalic acid, contains 600 ppm of silica particles having an average particle size of 2.2 microns, and is formed into pellets. Melting point 253.
- a material obtained by dry blending (diam salt compound) with 300: 1 was put into an extruder.
- melt extrusion was performed with the melt line temperature set to 230 ° C, and the molten resin was extruded into a sheet shape with a T-die force.
- the molten molten resin was cast on a cooling drum at 20 ° C.
- an electrostatic application adhesion method was applied.
- the unstretched sheet produced in this way was guided to the longitudinal stretching process.
- a round stretching method is adopted, preheating to 70 ° C with multiple ceramic rolls and IR (red
- the outer wire was also used in combination with a heater and stretched in the longitudinal direction at a stretch ratio of 3.0.
- this uniaxially stretched film was guided to a tenter, preheated at 90 ° C., and then stretched in the width direction at a stretch ratio of 4.0 times. Then, after heat fixing at 180 ° C under tension in the same tenter, relaxation treatment was performed in the 3% width direction at 150 ° C to obtain a 25 ⁇ m thick biaxially oriented polyester film. It was.
- this film was used as the first layer, and with a spectrophotometer UV 3100 manufactured by Shimadzu Corporation, the scanning speed was low, the sampling pitch was 1 nm, the visible light of 380 nm—78 Onm and The near-infrared average transmittance (* 1) of 820nm-1 lOOnm was measured.
- Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 Film Melting Point 3) 206 220 206 220 220 253 253
- Example 2 the polyester A in Example 1 was changed to polyester B (melting point: 220 ° C.), and the melt line temperature was changed to 250 ° C. Otherwise, film formation was performed in the same manner as in Example 1 to obtain a biaxially oriented polyester film having a thickness of 25 m. This film was evaluated in the same manner as in Example 1. The results are shown in Table 1.
- Polyester C (glass transition point: 80.5 ° C) was introduced into the first extrusion molding machine 21 of the coextrusion molding machine shown in Fig. 5, while polyester A and Japan as a near-infrared absorber.
- melt extrusion is performed with the melt line temperature set to 230 ° C, and immediately before the melt extrusion, the thickness ratio is in the order of CZAZC in which the polyester C layer is sandwiched by the polyester A layer.
- the molten resin was coextruded from the T-die 23 into a sheet shape by combining the flow paths of the extruders 21 and 22 so as to be 1Z8Z1. Therefore, as shown in Table 1, the first and third layers have polyester C force, and the second layer has polyester A force.
- the molten molten resin was cast on a cooling drum 24 at 20 ° C.
- an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to a longitudinal stretching machine 25.
- This longitudinal stretching machine 25 employed a roll stretching method, preheated to 70 ° C. with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- this uniaxially stretched film was led to a tenter and preheated at 90 ° C., and then led to a transverse stretcher 26 and stretched in the width direction at a stretch ratio of 4.0.
- the film was heat-set at 180 ° C. under tension in the same tenter, and then subjected to a relaxation treatment in the 3% width direction at a temperature of 150 ° C. to obtain a biaxially oriented polyester film having a thickness of 25 m.
- Example 4 the polyester C of the first and third layers of Example 3 was changed to polyester B (melting point: 220 ° C.), and the melt line temperature was changed to 250 ° C. Otherwise, film formation was performed in the same manner as in Example 3 to obtain a biaxially oriented polyester film having a thickness of 25 m. . This film was evaluated in the same manner as in Example 1. The results are shown in Table 1.
- Example 5 the polyester C of the first and third layers of Example 3 was changed to polyester B (melting point: 220 ° C.), and the melt line temperature was changed to 250 ° C. Otherwise, film formation was performed in the same manner as in Example 3 to obtain a biaxially oriented polyester film having a thickness of 25 m. . This film was evaluated in the same manner as in Example 1. The results are shown in Table 1.
- Example 5 Example 5
- a material obtained by dry blending polyester A (melting point: 220 ° C) and near-infrared absorber (KAYASORB IR G-022 manufactured by Nippon Kayaku Co., Ltd.) at 270: 1 was introduced into the first extruder 21, and the Polyester material prepared by dry blending 12000: 1 with Stell B and an image quality corrector that absorbs visible light having an absorption maximum wavelength of 560 to 600 nm (TAP-2 tetraazaborphyrin compound made by Yamada Chemical Co., Ltd.) was put into a second extruder 22.
- TAP-2 tetraazaborphyrin compound made by Yamada Chemical Co., Ltd.
- melt extrusion is performed with the melt line temperature set at 250 ° C., and immediately before the melt extrusion, the thickness ratio of the flow paths is adjusted to 1Z1 and the melt Fat was coextruded from T die 23 into a sheet.
- the sheet-like molten resin was cast on a cooling drum 24 at 20 ° C.
- an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to a longitudinal stretching machine 25.
- This longitudinal stretching machine 25 employed a roll stretching method, preheated to 70 ° C. with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- this uniaxially stretched film was led to a tenter and preheated at 90 ° C., and then led to a transverse stretcher 26 and stretched in the width direction at a stretch ratio of 4.0.
- Comparative Example 1 polyester A (melting point 206 ° C) in Example 1 was changed to polyester D (melting point 253 ° C), and the melt line temperature was changed to 290 ° C. Otherwise, film formation was performed in the same manner as in Example 1 to obtain a biaxially oriented polyester film having a thickness of 25 m. This film was evaluated in the same manner as in Example 1. The results are shown in Table 1. Comparative Example 2
- Example 2 polyester A (melting point: 206 ° C) in Example 3 was changed to polyester D (Melting point 253 ° C) and the melt line temperature was changed to 290 ° C. Otherwise, a film was formed in the same manner as in Example 3 to obtain a biaxially oriented polyester film having a thickness of 25 ⁇ m. This film was evaluated in the same manner as in Example 1. The results are shown in Table 1.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (a) includes a near-infrared cut layer 33 made of a polyester fiber in which a near-infrared absorber is uniformly mixed, an ultraviolet absorber and predetermined particles.
- the UV-cutting layer 34 made of a uniformly mixed polyester film is a two-layer biaxially oriented film 32 that is integrally molded by a coextrusion method and laminated. As this near-infrared absorber, dimoyuum salt compound can be adopted.
- phthalocyanine compounds for example, phthalocyanine compounds, naphthalocyanine compounds, indoor-linny compounds, Adopts benzopyran compound, quinolin compound, anthraquinone compound, squarylium compound, nickel complex compound, copper compound, tungsten compound, indium tin oxide, antimony tin oxide, ytterbium phosphate and mixtures thereof Even so.
- a benzoxazinone compound is used as an ultraviolet absorber
- other existing compounds have a maximum absorption between 300 and 400 nm and efficiently cut light in that region.
- organic ultraviolet absorbers include benzotriazole, benzophenone, salicylate, triazine, paraaminobenzoic acid, cinnamate, acrylate, hindered amine, and cyclic iminoester.
- examples of the inorganic ultraviolet absorber include titanium oxide, zinc oxide, and fine particle iron oxide-based ultraviolet absorbers.
- the predetermined particles silica particles having a diameter of several / zm can be employed. Other existing ones such as calcium carbonate particles may be employed.
- the adhesiveness in the state of the polyester film being reduced can be reduced and the polyester film can be made slippery.
- This polyester has a melting point of 230 ° C or lower during extrusion.
- the ultraviolet cut layer 34 is disposed outside the near-infrared cut layer 33 with respect to the plasma display panel (PDP) body. Is done.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (b) includes a near-infrared cut layer 33 made of a polyester fiber in which a near-infrared absorber and a predetermined particle are uniformly mixed, and an ultraviolet absorber.
- a UV-cut layer 34 made of a polyester film in which are uniformly mixed is a two-layer biaxially oriented film 32 that is integrally molded by a coextrusion method and laminated.
- the ultraviolet cut layer 34 is disposed outside the near infrared cut layer 33 with respect to the PDP body.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (c) includes a near-infrared cut layer 3 made of a polyester fiber in which a near-infrared absorber and a predetermined particle are uniformly mixed, and an ultraviolet absorber.
- the UV-cutting layer 4 made of a polyester fiber in which predetermined particles are uniformly mixed is a two-layer biaxially oriented film 32 that is integrally formed and laminated by a coextrusion method.
- the ultraviolet cut layer 34 is disposed outside the near infrared cut layer 33 with respect to the PDP main body.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (d) has a near-infrared cut layer 33 made of a polyester fiber in which a near-infrared absorber is uniformly mixed, and predetermined particles are uniformly mixed.
- the ultraviolet cut layer 34 is arranged outside the near infrared cut layer 33 with respect to the PDP body.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (e) includes a near-infrared cut layer 33 made of a polyester fiber in which a near-infrared absorber and predetermined particles are uniformly mixed, and predetermined particles A polyester-containing particle-containing layer 36 that is uniformly mixed, and a polyester that is disposed between the near-infrared cut layer 33 and the particle-containing layer 36 and uniformly mixed with an ultraviolet absorber.
- the ultraviolet cut layer 34 is a three-layer biaxially oriented film 35 that is integrally molded by a coextrusion method and laminated. The ultraviolet cut layer 34 is disposed on the outer side of the near-infrared cut layer 33 with respect to the PDP body.
- the film 37 which is a near-infrared cut layer 33 made of a polyester fiber in which a near-infrared absorber is uniformly mixed
- the film is adhered and laminated to the film 38 which is an ultraviolet cut layer 34 made of a polyester cover in which an ultraviolet absorber and predetermined particles are uniformly mixed.
- the ultraviolet cut layer 34 is disposed on the outside of the PDP main body with respect to the near infrared ray cut layer 33.
- the near-infrared absorption filter 31 schematically shown in Fig. 6 (g) includes an ultraviolet cut layer 34 made of a polyester cover in which an ultraviolet absorber is uniformly mixed, and a poWer in which predetermined particles are uniformly mixed.
- a near-infrared cut layer 33 comprising a bilayer biaxially oriented film 38 in which a particle-containing layer 36 such as a reester coater is integrally molded by a coextrusion method and a polyester in which a near-infrared absorber is uniformly mixed 33
- the film 37 is attached to the ultraviolet cut layer 34 of the film 38 and laminated.
- the ultraviolet cut layer 34 is disposed outside the near infrared cut layer 33 with respect to the PDP body.
- the near-infrared absorption filter 31 schematically shown in Fig. 7 (a) includes a film 37, which is a near-infrared cut layer 33 having a polyester force in which a near-infrared absorber and a predetermined particle are uniformly mixed, and an ultraviolet ray.
- a film 38 which is an ultraviolet cut layer 34 made of a polyester film in which an absorbent is uniformly mixed, and an optional layer 39 disposed between the film 37 and the film 38 are attached to each other and laminated.
- the optional layer 39 means that when the near-infrared absorption filter 31 is used for the plasma display panel 41, the ultraviolet cut layer 34 is even disposed on the outside of the PDP body rather than the near infrared cut layer 33.
- another film or glass may be interposed between the film 37 and the film 38, it is referred to as an arbitrary layer 39.
- the near-infrared absorption filter 31 schematically shown in Fig. 7 (b) has a bi-layer biaxial orientation in which a near-infrared cut layer 33 and a particle-containing layer 36 are integrally molded by a coextrusion method and laminated.
- Film 37, film 38 which is UV cut layer 34 which also has a polyester force mixed with UV absorber uniformly, and any film-containing layer 36 of film 37 between film 38 and any film 38 Layer 39 is laminated with each other attached.
- the near-infrared cut layer 33 is a polyester cover in which a near-infrared absorber is uniformly mixed.
- the particle-containing layer 36 is made of a polyester cartridge in which predetermined particles are uniformly mixed.
- the ultraviolet cut layer 34 is disposed outside the near infrared cut layer 33 with respect to the PDP body.
- the near-infrared absorption filter 31 schematically shown in FIG. 7 (c) is a biaxial biaxial structure in which a near-infrared cut layer 33 and a particle-free layer 40 are integrally formed by a coextrusion method and laminated.
- An orientation film 37, a film 38 which is a UV-cutting layer 34 having a polyester force mixed with a UV absorber uniformly, and an optional layer 39 between the particle-free layer 40 and the film 38 of the film 37; are stacked on each other.
- the near-infrared cut layer 33 is a polyester cover in which a near-infrared absorber and predetermined particles are uniformly mixed.
- the particle non-containing layer 40 is made of a polyester cartridge that does not contain predetermined particles.
- the ultraviolet cut layer 34 is disposed on the outer side of the PDP main body than the near infrared ray cut layer 33.
- the near-infrared absorption filter 31 schematically shown in Fig. 7 (d) is the same as the near-infrared absorption filter 31 shown in Fig. 7 (c) except that the particle-free layer 40 of the film 37 is changed to a particle-containing layer 36. Is.
- the near-infrared absorption filter 31 schematically shown in FIG. 7 (e) includes a biaxially oriented film 37, an film 38 that is an ultraviolet ray cut layer 34, and any film between the film 37 and the film 38. Layers 39 are stacked together attached to each other.
- the biaxially oriented film 37 is made of a polyester-containing particle-containing layer 36 in which predetermined particles are uniformly mixed, a polyester-free particle-containing layer 40 that does not contain predetermined particles, and the particle-containing layer.
- the film 38 which is the ultraviolet cut layer 34 also has a polyester force in which an ultraviolet absorber is uniformly mixed.
- the ultraviolet cut layer 34 is arranged on the outside of the PDP main body with respect to the near infrared cut layer 33.
- a plasma display panel 41 schematically shown in Fig. 8 (a) includes a single-layer film 42 as an antireflection layer, a single-layer film 43 as an adhesive layer, and glass as a plurality of laminates.
- the film 35, the film 47, the film 46, the film 45, the glass substrate 44, the film 43, and the film 42 force PDP main body strength are sequentially arranged and stacked outward.
- tetraazaborphyrin compound which is a compound that absorbs visible light having an absorption maximum wavelength in the range of 560 to 600 nm.
- the compound is not particularly limited as long as it has a maximum absorption wavelength at 600 nm.
- a cyanine compound, a squarylium compound, an azo compound, or a phthalocyanine compound may be employed.
- the plasma display panel 41 schematically shown in FIG. 8 (b) includes a single-layer film 42 as an antireflection layer, a single-layer film 43 as an adhesive layer, and glass as a plurality of laminates.
- a substrate 44, a single-layer film 45 as an adhesive layer, a single-layer film 46 as an electromagnetic wave cut layer, a single-layer film 47 as an adhesive layer containing an image quality correction agent, and FIG. Films 37 and 38 in the near infrared absorption filter 31 shown in g) are included.
- the film 37, the film 38, the film 47, the film 46, the film 45, the glass substrate 44, the film 43, and the film 42 are sequentially stacked and stacked in order toward the outside of the PDP body force.
- polyester materials used in Examples 6 to 9 and Comparative Examples 3 to 5 below will be described.
- a polyester material polycondensed from ethylene glycol, isophthalic acid, and terephthalic acid into pellets containing 600 ppm of silica particles having an average particle size of 2.2 microns.
- AU Polyester A was fed into a twin screw extruder with a vent, and 2, 2, — (1, 4 phenylene) bis [4H— 3, 1-benzoxazine mono 4-one] ( CYTEC CYASORB UV-3638 manufactured by CYASORB (molecular weight 369 benzoxazinone) is supplied to a concentration of 10% by weight and melt-kneaded to form a pellet of polyester material and polyester A at a weight ratio of 1: Polyester material dry blended in 9.
- a polycondensation reaction is carried out from 0.9 part by weight of the sol solution, and the polymer obtained after the polycondensation reaction is extracted into water in the form of strands, and then the polyester material formed into pellets has an average particle size of 2.4 m.
- BI A material obtained by dry blending 270: 1 with polyester B and a near-infrared absorber (KAYASORB IRG-022 manufactured by Nippon Kayaku Co., Ltd.).
- Polyester B is subjected to a twin screw extruder with a vent as a UV absorber.
- a general-purpose polyester material that is polycondensed from ethylene glycol and terephthalic acid, contains 600 ppm of silica particles with an average particle size of 2.2 microns, and is pelletized.
- CI A polyester material obtained by dry blending 270: 1 with polyester C and a near-infrared absorber (KAYASORB IRG-022 manufactured by Nippon Kayaku Co., Ltd.).
- CU Polyester C was subjected to a twin-screw extruder with a vent, and 2, 2 '-(1, 4 phenylene) bis [4H— 3, 1-benzoxazine 4- on a polyester material was pelleted (CYTEC Co. CYASORB UV-3638 molecular weight 369 benzo O hexa, dimethylsulfoxide system) 10 wt 0/0 by supplying to a concentration by melting kneading, a polyether Sutenore C Polyester material dry blended 1: 9 by weight.
- a material obtained by dry blending polyester B and a near infrared (NIR) absorber (KAYASORB IRG-022 manufactured by Nippon Kayaku Co., Ltd.) at a ratio of 300: 1 was put into an extruder.
- NIR near infrared
- This extrusion machine Used melt extrusion at a melt line temperature of 250 ° C to extrude molten resin in a T-die force sheet.
- the molten resin in sheet form was cast on a cooling drum at 20 ° C. In this casting, an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to the longitudinal stretching process.
- polyester BU was put into an extruder in the same manner as the biaxially oriented polyester film (NIR) to form a film, and a 25 ⁇ m thick biaxially oriented polyester film (UV) was obtained. .
- This film was used as the first layer.
- SK Dyne 20 94 made by Soken Chemical Co., Ltd. and E-AX hardener made by Soken Chemical Co., Ltd. were mixed on the surface of the biaxially oriented polyester film (UV) in a ratio of 1000: 2.7 to obtain a 20% solid content solution.
- the adhesive layer is dried at 100 ° C for 3 minutes, and then this surface is bonded to a biaxially oriented polyester film (NIR) and pressed with a hand roller to remove air bubbles. A polyester film was obtained.
- NIR biaxially oriented polyester film
- the obtained film was scanned at a low scanning speed, with a sampling pitch of lnm, 380nm-780nm visible light, 370nm ultraviolet light, 820nm-1 lOOnm
- the near-infrared average transmittance (* 1) was measured.
- the film was placed inside the south window in the test room, and the transmittance (* 2) after exposure to sunlight for 2 months was also evaluated.
- Example 7 [0114] The polyester material AI was put into the first extruder 21 of the co-extrusion machine shown in FIG. 5, and the polyester material AU was put into the second extruder 22.
- melt extrusion is performed with the melt line temperature set at 230 ° C, and immediately before the melt extrusion, the flow paths are adjusted so that the thickness ratio of AIZAU is 4Z1,
- the molten resin was coextruded from T-die 23 into a sheet.
- the molten molten resin in sheet form was cast on a cooling drum 24 at 20 ° C. In this casting, an electrostatic application adhesion method was applied.
- the unstretched sheet produced in this way was guided to a longitudinal stretching machine 25.
- This longitudinal stretching machine 25 employs a roll stretching method, pre-heated to 70 ° C by a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 by using an IR heater together.
- this uniaxially stretched film was guided to a tenter and preheated at 90 ° C, and then guided to a transverse stretching machine 26 and stretched in the width direction at a stretching ratio of 4.0. Then, after heat setting at 180 ° C under tension in the same tenter, relaxation treatment was performed in the 3% width direction at a temperature of 150 ° C to obtain a biaxially oriented polyester film with a thickness of 25 ⁇ m. .
- the first layer of the obtained film is made of polyester AU force, and the second layer is made of polyester AI.
- This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- Example 6 Example 7
- Example 8 Example 9 ⁇ 3 Comparative Example 4
- Comparative Example 5 Film melting point (t) 220 206 220 253 220 ⁇ ⁇
- Acrylic binder Acrylic binder 1st layer BU + Adhesive layer AU BU CU BI + Near infrared absorber + UV absorber 2nd layer BI AI B1 CI None Polyester film Acrylic binder
- the polyester material BI was charged into the first extruder 21 shown in FIG. 5, and the polyester material BU was charged into the second extruder 22. In addition to these changes, the meltline temperature was changed to 250 ° C. Otherwise, a film was formed in the same manner as in Example 6 to obtain a biaxially oriented polyester film having a thickness of 25 / z m.
- the first layer of the obtained film also has polyester BU force, and the second layer is made of polyester BI.
- This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- Example 9 the polyester material BI in Example 6 was changed to the polyester material CI (melting point 253 ° C), the polyester material BU was changed to the polyester material CU (melting point 253 ° C), and the melt line temperature was changed. Was changed to 290 ° C. Otherwise, a film was formed in the same manner as in Example 6 to obtain a biaxially oriented polyester film having a thickness of 25 ⁇ m.
- the first layer of the obtained film also has polyester CU force, and the second layer is made of polyester CI.
- This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- Polyester B (melting point 220 ° C) before extrusion molding was 184 parts by weight of 1,4-cyclohexanedicarboxylic acid (trans 98%) and 1,4-cyclohexanedimethanol (67% trans) 158 parts by weight And 0.9 part by weight of a 6 wt% butanol solution of Ti (OC H)
- the polymer obtained after the polycondensation reaction was drawn into water in the form of a strand and pelletized, and then the pelletized material was added with amorphous silica having an average particle size of 2.4 m to 0.1. It is a polyester material that is blended to a weight percentage and extruded into a strand to form a pellet.
- melt extrusion was carried out with the melt line temperature set at 250 ° C, and the molten resin was extruded into a sheet shape with a T-die force.
- the molten molten resin was cast on a cooling drum at 20 ° C.
- an electrostatic application adhesion method was applied. like this
- the unstretched sheet produced as described above was led to a longitudinal stretching process.
- a roll stretching method was adopted, preheated to 70 ° C with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- the uniaxially stretched film was guided to a tenter, preheated at 90 ° C, and then stretched in the width direction at a stretch ratio of 4.0. Then, after heat-fixing at 180 ° C under tension in the same tenter, relaxation treatment was performed in the 3% width direction at 150 ° C to obtain a 25 ⁇ m thick biaxially oriented polyester film. .
- the first layer of the obtained film is made of polyester BI. This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- the first layer of the obtained film consists of an acrylic binder and a near-infrared absorber, and the second layer consists of a polyester film.
- This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- UV absorber CYTEC CYASORB UV-3638
- polymethyl methacrylate resin Dainar BR-80
- Og methylethylketone 4.0 g and toluene 16. It was dissolved in 0 g of a mixed solvent. After taking 1.5 g of the obtained liquid and completely dissolving it with an ultrasonic cleaner, the obtained solution was applied to the near-infrared absorbing film obtained in Comparative Example 4 using a bar coater # 24.
- the laminated film of the ultraviolet absorption layer and the infrared absorption layer was obtained by processing and drying.
- the first layer of the obtained film consists of an acrylic binder and an ultraviolet absorber
- the second layer also acts as an acrylic binder and a near infrared absorber
- the third layer is a poly It consists of an ester film. This film was evaluated in the same manner as in Example 6. The results are shown in Table 2.
- the deterioration (decomposition and alteration) of the near-infrared absorber is suppressed by providing an independent ultraviolet-irradiation filter itself with an ultraviolet ray-cutting function.
- the near infrared ray average transmittance of 820 nm-lOO nm is kept low.
- the number of adhesion steps between the respective layers can be reduced by the coextrusion method.
- the number of steps is 1, it can be seen that evenness of appearance is ensured even when the near-infrared cut layer and the ultraviolet cut layer are laminated.
- the difference between the near-infrared transmittance and the visible light transmittance can be further increased by using a polyester having a melting point of 230 ° C. or less in each example.
- the plasma display optical filter 51 schematically shown in Fig. 9 (a) has a three-layer structure in which an image quality correction layer 53, an ultraviolet cut layer 54, and a near infrared cut layer 55 are integrally molded by a coextrusion method and laminated. Biaxially oriented film 52.
- the image quality correction layer 53 is made of a polyester cable in which an image quality correction agent is uniformly mixed.
- the UV cut layer 54 also has a polyester force in which the UV absorber and the predetermined particles are uniformly mixed.
- the near infrared cut layer 55 is disposed between the image quality correction layer 53 and the ultraviolet cut layer 54 and is made of polyester in which a near infrared absorber is uniformly mixed.
- the ultraviolet ray cut layer 54 is disposed outside the plasma display panel (PDP) main body with respect to the near infrared cut layer 55.
- a tetraazaporphyrin compound which is a compound that absorbs visible light having an absorption maximum wavelength in the range of 560 to 600 nm, is used, but other existing ones have an absorption maximum wavelength in the range of 560 to 600 nm. If it is a compound, it will not specifically limit. For example, cyanine compounds, squarylium compounds, azo compounds, and phthalocyanine compounds may be employed.
- organic UV absorbers include benzotriazole, benzophenone, salicylic acid ester, triazine, paraaminobenzoic acid, cinnamate, attalylate, hindered amine, and cyclic iminoester UV absorption.
- agents As the inorganic ultraviolet classifier, a titanium oxide-based, zinc oxide-based, or particulate acid-iron-based ultraviolet absorber may be employed.
- the predetermined particles silica particles having a diameter of several / zm can be used, but other existing particles such as calcium carbonate particles may be used.
- a power capable of adopting a dimoyuum salt compound or other existing ones is limited, as long as it is a compound having an absorption maximum wavelength at 800 to LlOOnm. It is not a thing.
- phthalocyanine compounds, naphthalocyanine compounds, indoor phosphorus compounds, benzopyran compounds, quinoline compounds, anthraquinone compounds, squalium compounds, nickel complex compounds, copper compounds, Tungsten compounds, indium tin oxide, antimony tin oxide, ytterbium phosphate, and mixtures thereof may be employed.
- the melting point of polyester during extrusion is set to 230 ° C or lower.
- the optical filter 51 for plasma display schematically shown in Fig. 9 (b) is formed by laminating an image quality correction layer 53, an ultraviolet cut layer 54, and a near infrared cut layer 55 integrally by a coextrusion method.
- a three-layer biaxially oriented film 52 formed.
- the image quality correction layer 53 is made of a polyester cartridge in which an image quality correction agent and predetermined particles are uniformly mixed.
- the ultraviolet cut layer 54 is made of a polyester cover in which an ultraviolet absorbent and predetermined particles are uniformly mixed.
- the near-infrared cut layer 55 is disposed between the image quality correction layer 53 and the ultraviolet cut layer 54, and also has a polyester force in which the near-infrared absorber is uniformly mixed.
- the ultraviolet cut layer 54 is disposed on the outer side of the PPP body than the near infrared cut layer 55.
- the plasma display optical filter 51 schematically shown in Fig. 9 (c) includes an image quality correction layer 53 having a polyester force in which an image quality correction agent and predetermined particles are uniformly mixed, and a near infrared ray.
- the ultraviolet cut layer 54 made of a mixed polyester cover is a three-layer biaxially oriented film 52 that is integrally formed and laminated by a coextrusion method.
- the ultraviolet cut layer 54 is disposed outside the PDP body with respect to the near infrared ray cut layer 55.
- the optical filter 51 for plasma display schematically shown in Fig. 9 (d) has an image quality correction layer 53 made of polyester in which an image quality correction agent is uniformly mixed, a near-infrared absorber and predetermined particles uniformly.
- a near-infrared cut layer 55 consisting of a mixed polyester cover, and a polyester cover disposed between the image quality correction layer 53 and the near-infrared cut layer 55 and uniformly mixed with an ultraviolet absorber and predetermined particles.
- the ultraviolet cut layer 54 is a three-layer biaxially oriented film 52 that is integrally formed and laminated by a coextrusion method.
- the ultraviolet cut layer 54 is disposed outside the PDP main body with respect to the near infrared ray cut layer 55.
- the plasma display optical filter 51 schematically shown in Fig. 9 (e) includes an image quality correction layer 53 having a polyester force in which an image quality correction agent and predetermined particles are uniformly mixed, a near-infrared absorber, and predetermined particles. And a near infrared cut layer 55 made of a uniformly mixed polyester, and a polyester cover in which an ultraviolet absorber and predetermined particles are uniformly mixed between the image quality correcting layer 53 and the near infrared cut layer 55.
- the ultraviolet cut layer 54 is a three-layer biaxially oriented film 52 that is integrally formed and laminated by a coextrusion method.
- the ultraviolet cut layer 54 is disposed outside the PDP main body with respect to the near infrared ray cut layer 55.
- the optical filter 51 for plasma display schematically shown in Fig. 9 (f) has an ultraviolet cut layer 54 having a polyester force in which an ultraviolet absorber and predetermined particles are uniformly mixed, and a near-infrared absorber is uniform.
- the near-infrared cut layer 55 made of polyester mixed with the polyester layer, and the image quality made of polyester that is arranged between the ultraviolet cut layer 54 and the near-infrared cut layer 55 and in which the image quality correction agent is uniformly mixed.
- the correction layer 53 is a three-layer biaxially oriented film 52 that is integrally molded by a coextrusion method and laminated.
- the ultraviolet cut layer 54 is disposed outside the PDP body with respect to the near infrared cut layer 55.
- the optical filter 51 for plasma display schematically shown in Fig. 9 (g) includes an ultraviolet cut layer 54 having a polyester force in which an ultraviolet absorber and predetermined particles are uniformly mixed, and a near red color.
- a near-infrared cut layer 55 consisting of a polyester fiber in which an external line absorber is uniformly mixed, and an image quality correction agent and predetermined particles are arranged uniformly between the ultraviolet line cut layer 54 and the near-infrared cut layer 55.
- the image quality correction layer 53 having a mixed polyester force is a three-layer biaxially oriented film 52 formed by co-extrusion and laminated.
- the UV cut layer 54 is disposed outside the PDP body more than the near infrared cut layer 55.
- a film 57 is attached to a biaxially oriented film 56 and laminated.
- the biaxially oriented film 56 includes an ultraviolet cut layer 54 made of a polyester layer in which an ultraviolet absorber and predetermined particles are uniformly mixed, and an image quality correction layer 53 having a polyester force in which an image quality correction agent is uniformly mixed.
- the film 57 is a near-infrared cut layer 55 made of a polyester cover in which a near-infrared absorber is uniformly mixed.
- the ultraviolet cut layer 54 is disposed outside the PDP main body with respect to the near infrared cut layer 55.
- optical filter 51 for plasma display schematically shown in FIG.
- the biaxially oriented film 58, the film 59, and an arbitrary layer 60 between the image quality correcting layer 53 and the film 59 of the biaxially oriented film 58 are laminated by being adhered to each other.
- the biaxially oriented film 58 is composed of an image quality correction layer 53 that has a polyester strength in which an image quality correction agent and predetermined particles are uniformly mixed, and a near infrared cut layer that is made of polyester in which a near infrared absorber is uniformly mixed.
- 55 is a two-layer film that is integrally formed and laminated by a co-extrusion method.
- the film 59 is an ultraviolet ray coating layer 54 made of a polyester cartridge in which an ultraviolet absorber is uniformly mixed.
- the optional layer 60 means that when the near-infrared absorption filter 51 is used for the plasma display panel 61, the ultraviolet cut layer 54 is disposed outside the PDP main body rather than the near infrared cut layer 55. This is called “arbitrary” as long as it is possible to interpose a film, glass, etc. between the film 58 and the film 59.
- the optical filter 51 for plasma display schematically shown in Fig. 10 (b) includes a biaxially oriented film 58, a film 59, and an image quality correcting layer 53 of the biaxially oriented film 58 and the film 59. Any arbitrary layer 60 and force are attached and laminated together.
- the biaxially oriented film 58 includes an image quality correction layer 53 made of a polyester fiber in which an image quality correction agent is uniformly mixed, and a near red color. Near-infrared cut layer consisting of a polyester fiber in which an external absorber and predetermined particles are uniformly mixed
- the film 59 is an ultraviolet cut layer 54 having a polyester power in which an ultraviolet absorber is uniformly mixed.
- the ultraviolet cut layer 54 is disposed outside the PDP main body with respect to the near infrared cut layer 55.
- the optical filter 51 for plasma display schematically shown in Fig. 10 (c) includes a biaxially oriented film 58, a film 59, and an image quality correction layer 53 of the biaxially oriented film 58 and the film 59. Any arbitrary layer 60 and force are attached and laminated together.
- the biaxially oriented film 58 is made of an image quality correction layer 53 consisting of a polyester film in which an image quality corrector and predetermined particles are uniformly mixed, and a polyester film in which a near infrared absorber and predetermined particles are uniformly mixed.
- the near-infrared cut layer 55 is a two-layer film that is integrally molded by a coextrusion method and laminated.
- the film 59 is an ultraviolet cut layer 54 made of a polyester film in which an ultraviolet absorber is uniformly mixed.
- the ultraviolet cut layer 54 is disposed outside the PDP main body with respect to the near infrared cut layer 55.
- a plasma display panel 61 schematically shown in Fig. 11 (a) includes a single-layer film 62 that is an antireflection layer, a single-layer film 63 that is an adhesive layer, a glass substrate 64, and an adhesive.
- Film 52 in optical filter 51 for use is included. The film 52, the film 67, the film 66, the film 65, the glass substrate 64, the film 63, and the film 62 are sequentially arranged and laminated from the PDP main body.
- a plasma display panel 61 schematically shown in Fig. 11 (b) includes a single-layer film 62 that is an antireflection layer, a single-layer film 63 that is an adhesive layer, a glass substrate 64, and an adhesive.
- a single-layer film 65 that is an electromagnetic wave cut layer a single-layer film 66 that is an electromagnetic wave cut layer
- a single-layer film 67 that is an adhesive layer an optical filter for plasma display 51 shown in FIG. Including film 52.
- the film 52, the film 67, the film 66, the film 65, the glass substrate 64, the film 63, and the film 62 are sequentially stacked from the PDP body.
- the plasma display panel 61 schematically shown in Fig. 11 (c) is a simple antireflection layer.
- the films 56 and 57 in the plasma display optical filter 51 shown in FIG. 9 (h) are sequentially arranged and laminated from the PDP main body.
- polyester materials used in the following Examples 10 to 15 and Comparative Example 6 will be described.
- A A polyester material polycondensed from ethylene glycol, isophthalic acid, and terephthalic acid into pellets containing 600 ppm of silica particles with an average particle size of 2.2 microns. Melting point 20 6.
- C A polyester material polycondensed from ethylene glycol, isophthalic acid, and terephthalic acid into pellets containing 600 ppm of silica particles with an average particle size of 2.2 microns. Melting point 20 6.
- AI A polyester material obtained by dry blending 270: 1 with polyester A and a near-infrared absorber (KAYASORB IRG-022 manufactured by Nippon Kayaku Co., Ltd.).
- AU Polyester A was supplied to a twin screw extruder with a vent, and 2, 2 '-(1, 4-phenol) bis [4H— 3, 1-benzoxazine mono 4-one] as an ultraviolet absorber.
- CYTEC's CYASORB UV— 3638 molecular weight 369 benzoxazinone
- CYTEC's CYASORB UV— 3638 molecular weight 369 benzoxazinone
- AS Polyester A and an image quality correction agent (TAP-2 Tetraazaborfylin Compound, manufactured by Yamada Chemical Industry Co., Ltd.) that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm.
- TEP-2 Tetraazaborfylin Compound manufactured by Yamada Chemical Industry Co., Ltd.
- 120 00 1 Polyester material dry blended with.
- B 184 parts by weight of 1,4-cyclohexanedicarboxylic acid (trans 98%), 158 parts by weight of 1,4-successed hexanedimethanol (trans 67%), Ti (OC H) Of 6% pig by weight
- a polycondensation reaction is carried out with 0.9 part by weight of the sol solution, and the polymer obtained after the polycondensation reaction is extracted into water in the form of strands, and the pelletized polyester material has an average particle size of 2.4 / zm. blended as amorphous silica a 0.1 wt 0/0, after out pressed into strands, polyester materials in pellet form. Melting point 220 ° C.
- BI Polyester B and a near-infrared absorber (KAYASORB IRG— 022 manufactured by Nippon Kayaku Co., Ltd.) are dry blended at 270: 1.
- BU Polyester B was supplied to a twin-screw extruder with a vent and used as a UV absorber. 2, 2 '-(1, 4-phenol-bis) bis [4H— 3, 1-benzoxazine 4-one] CYTEC's CYASORB UV— 3638 (molecular weight 369 benzoxazinone) is supplied to a concentration of 10% by weight, melt-kneaded, and then the polyester material in the form of pellets and polyester B are in a weight ratio of 1 : Polyester material dry blended in 9.
- BS Polyester B and an image quality correction agent (TAP-2 tetraazaporphyrin compound, manufactured by Yamada Chemical Co., Ltd.) that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm are dried at 12 000: 1. Blended polyester material.
- TEP-2 tetraazaporphyrin compound manufactured by Yamada Chemical Co., Ltd.
- C A general-purpose polyester material that is polycondensed from ethylene glycol and terephthalic acid, and is added into pellets by adding 600 ppm of silica particles with an average particle size of 2.2 microns. Melting point 253 ° C.
- CI A polyester material obtained by dry blending 270: 1 with polyester C and a near infrared absorber (KAYASORB IRG-022 manufactured by Nippon Kayaku Co., Ltd.).
- CU Polyester C was supplied to a twin-screw extruder with a vent, and 2, 2 '-(1, 4-phenol) bis [4H— 3, 1-benzoxazine mono 4-one] as UV absorber CYTEC's CYASORB UV— 3638 (molecular weight 369 benzoxazinone) was fed to a concentration of 10% by weight, melted and kneaded, and then pelletized polyester material and polyester C in a weight ratio of 1: Polyester material dry blended in 9.
- CS Polyester C and an image quality correction agent (TAP-2 tetraazaborphyrin compound manufactured by Yamada Chemical Co., Ltd.) that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm is 120 00: 1 Polyester material dry blended with.
- TEP-2 tetraazaborphyrin compound manufactured by Yamada Chemical Co., Ltd. an image quality correction agent that absorbs visible light having an absorption maximum wavelength at 560 to 600 nm is 120 00: 1 Polyester material dry blended with.
- the polyester material AU is fed into the first extruder 68 of the co-extrusion machine shown in FIG. 12, the polyester material AI is fed into the second extruder 69, and the polyester material AS is fed into the third extruder. I put it in 70.
- melt extrusion is performed with the melt line temperature set to 230 ° C, and the flow paths are set immediately before the melt extrusion.
- the molten resin was co-extruded from the T-die 71 into a sheet shape so that the thickness ratio was 1Z4Z4 in the order of the AU layer, AI layer, and AS layer.
- the AU layer, AI layer, and AS layer correspond to the first to third layers in Table 3.
- the sheet-shaped molten resin was cast on a cooling drum 72 at 20 ° C.
- an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to a longitudinal stretching machine 73.
- This longitudinal stretching machine 73 employs a roll stretching method, preheated to 70 ° C. with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- this uniaxially stretched film was introduced into a tenter and preheated at 90 ° C., and then introduced into a transverse stretcher 74 and stretched in the width direction at a stretch ratio of 4.0.
- relaxation treatment was performed in the 3% width direction at 150 ° C. to obtain a biaxially oriented polyester film having a thickness of 45 m.
- the obtained film was averaged of 380 nm – 780 nm visible light, 8 20 nm-1 lOOnm near-infrared, with a low scanning speed and lnm sampling pitch.
- the transmittance (* 1) was measured.
- the film was placed inside the south window in the test room, and the transmittance (* 2) after exposure to sunlight for 2 months was also evaluated.
- the obtained film was lightly pressed with a cotton cloth soaked with toluene with the tip of the finger on the surface of the first layer and reciprocated five times, and then the surface condition was visually confirmed to be uniform in appearance (* 3 ) Was evaluated.
- the properties of this film are shown in Table 3.
- Example 11 the polyester material AU in Example 10 was changed to BU, the polyester material AI was changed to BI, the polyester material AS was changed to BS, and the melt line temperature was changed to 250 ° C. Otherwise, film formation was performed in the same manner as in Example 10 to obtain a biaxially oriented polyester film having a thickness of 45 m. This film was evaluated in the same manner as in Example 10. The characteristics are shown in Table 3.
- Example 12 the polyester material AU in Example 10 was changed to CU.
- the tellurium material AI was changed to CI
- the polyester material AS was changed to CS
- the melt line temperature was changed to 290 ° C.
- film formation was performed in the same manner as in Example 10 to obtain a biaxially oriented polyester film having a thickness of 45 m. This film was evaluated in the same manner as in Example 10. The characteristics are shown in Table 3.
- Example 13 a material obtained by dry blending polyester B and a near-infrared absorber (KAYASORB I RG-022 manufactured by Nippon Kayaku Co., Ltd.) at 300: 1 was put into an extruder.
- melt extrusion was performed with the melt line temperature set at 250 ° C, and the molten resin was extruded into a sheet shape with a T-die force.
- the sheet-like molten resin was cast on a cooling drum at 20 ° C.
- an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to the longitudinal stretching process.
- a roll stretching method was employed, preheated to 70 ° C with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- a film was formed using polyester BU in the same manner as the biaxially oriented polyester film (NIR) to obtain a biaxially oriented polyester film (UV) having a thickness of 25 ⁇ m.
- This film (UV) corresponds to BU in the first layer in Table 3.
- a film was formed using polyester BS in the same manner as the biaxially oriented polyester film (NIR) to obtain a biaxially oriented polyester film (VIS) having a thickness of 25 ⁇ m.
- This film (VIS) corresponds to the third layer BS in Table 3.
- SK Dyne 2094 manufactured by Soken Chemical Co., Ltd. and the hardener E-AX manufactured by the company were mixed at a ratio of 1000: 2.7 on the surface of the first layer of biaxially oriented polyester film (UV) to obtain a solid.
- standing and degassing it was applied by a bar coating method using a # 24 bar and dried at 100 ° C for 1 minute.
- the second layer of biaxially oriented polyester A laminated biaxially stretched polyester film was obtained by sticking to a film (NIR) and pressing with a hand roller to remove air bubbles.
- the polyester material BU was put into the first extruder 68, and the polyester material BS was put into the second extruder 69.
- melt extrusion is performed with the melt line temperature set at 250 ° C, and immediately before the melt extrusion, the flow paths are adjusted so as to have a thickness specific force of BU ZBS.
- the molten resin was coextruded from the T-die 71 into a sheet.
- the sheet-like molten resin was cast on a cooling drum 72 at 20 ° C. In this casting, an electrostatic application adhesion method was applied.
- the unstretched sheet thus produced was guided to a longitudinal stretching machine 73.
- This longitudinal stretching machine 73 employs a roll stretching method, preheated to 70 ° C. with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 times using an IR heater.
- this uniaxially stretched film was led to a tenter and preheated at 90 ° C., and then led to a transverse stretcher 74 and stretched in the width direction at a stretch ratio of 4.0.
- relaxation treatment was performed in the 3% width direction at a temperature of 150 ° C to obtain a biaxially oriented polyester film with a thickness of 25 m. .
- the obtained film is obtained by laminating the first layer and the second layer.
- the polyester material BI was charged into the first extruder 68 and the polyester material BS was charged into the second extruder 69.
- melt extrusion is performed with the melt line temperature set at 250 ° C, and immediately before the melt extrusion, the flow paths are adjusted so as to have a thickness specific force of BU ZBS.
- the molten resin was coextruded from the T-die 21 into a sheet shape.
- the sheet-like molten resin was cast on a cooling drum 22 at 20 ° C. In this casting, an electrostatic application adhesion method was applied.
- the unstretched sheet produced in this way was guided to the longitudinal stretching machine 23.
- This longitudinal stretching machine 23 employed a roll stretching method, preheated to 70 ° C. with a plurality of ceramic rolls, and stretched in the longitudinal direction at a stretching ratio of 3.0 using an IR heater.
- the obtained uniaxially stretched film was introduced into a tenter and preheated at 90 ° C, and then introduced into a transverse stretcher 74 and stretched in the width direction at a stretch ratio of 4.0. After that, after heat fixing at 180 ° C under tension in the same tenter, relaxation treatment was performed in the 3% width direction at 150 ° C, and a 50 / zm thick biaxially oriented polyester film (VIS ) This film corresponds to the first and second layers in Table 3.
- a 25 m-thick biaxially oriented polyester film (BU) described in Example 13 was prepared, and SK Dyne 2094 manufactured by Soken-Igaku Co., Ltd. and cured by the same company were formed on this surface.
- An adhesive layer composed of Agent E-AX was formed in the same procedure as in Example 13, and dried at 100 ° C. for 1 minute to obtain a third layer film. Thereafter, the adhesive layer in the third layer was bonded to a biaxially oriented polyester film (VIS), pressed with a hand roller to remove air bubbles, and a transparent laminated biaxially stretched polyester film was obtained. This film was evaluated in the same manner as in Example 10. The characteristics are shown in Table 3.
- Tetraazaporphyrin (0.003 g) and Mitsubishi Rayon Polymethylmethacrylate (Dianar BR-80) 5. Og were mixed with methyl ethyl ketone 8. Og and toluene 8. Og. Dissolved, 1.5 g was collected from this, and completely dissolved with an ultrasonic cleaner to obtain a coating solution. After that, this coating solution is applied to a biaxially oriented film (0300, thickness 25 m) manufactured by Mitsubishi Chemical Polyester Film Co., Ltd. with a bar coater # 24 and dried. A quality correction film was obtained. This corresponds to the third layer in Table 3. The coating film thickness should be about.
- an optical filter for an independent plasma display itself having an image quality correction layer itself can have an ultraviolet ray cut function as well as a near infrared ray cut function, deterioration of the near infrared absorber (decomposition and alteration) It can be seen that the performance of the optical filter for plasma display can be maintained by suppressing this.
- the use of polyester having a melting point of 230 ° C or lower can increase the difference between near infrared transmission and visible light transmission.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Optical Filters (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06713787A EP1850154A1 (en) | 2005-02-16 | 2006-02-15 | Near infrared ray absorbing filter, optical filter for plasma display and plasma display panel |
US11/816,250 US20090009899A1 (en) | 2005-02-16 | 2006-02-15 | Near Infrared Ray Absorbing Filter, Optical Filter for Plasma Display and Plasma Display Panel |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005039436A JP4744893B2 (ja) | 2005-02-16 | 2005-02-16 | プラズマディスプレイパネル |
JP2005039435A JP4744892B2 (ja) | 2005-02-16 | 2005-02-16 | プラズマディスプレイパネル |
JP2005-039437 | 2005-02-16 | ||
JP2005039437A JP4744894B2 (ja) | 2005-02-16 | 2005-02-16 | プラズマディスプレイパネル |
JP2005-039435 | 2005-02-16 | ||
JP2005-039436 | 2005-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006088056A1 true WO2006088056A1 (ja) | 2006-08-24 |
Family
ID=36916460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/302646 WO2006088056A1 (ja) | 2005-02-16 | 2006-02-15 | 近赤外線吸収フィルター、プラズマディスプレイ用光学フィルター及びプラズマディスプレイパネル |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090009899A1 (ja) |
EP (1) | EP1850154A1 (ja) |
KR (1) | KR20070114139A (ja) |
WO (1) | WO2006088056A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008170975A (ja) * | 2006-12-11 | 2008-07-24 | Dainippon Printing Co Ltd | 光学シート及び表示装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100220388A1 (en) * | 2007-06-08 | 2010-09-02 | Bridgestone Corporation | Near-infrared shielding material, laminate including the same, and optical filter for display including the same |
KR20090094582A (ko) * | 2008-03-03 | 2009-09-08 | 삼성에스디아이 주식회사 | 디스플레이 패널 |
EP2314074A4 (en) * | 2008-07-29 | 2013-06-26 | Thomson Licensing | FILTERING DISPLAY CHARACTERIZATION |
KR101243717B1 (ko) * | 2009-05-20 | 2013-03-13 | 주식회사 엘지화학 | 색감 및/또는 시인성이 우수한 터치 윈도우 |
KR102004816B1 (ko) * | 2011-09-15 | 2019-07-29 | 제이에스알 가부시끼가이샤 | 근적외선 차단 필터 및 근적외선 차단 필터를 이용한 장치 |
US9746595B2 (en) * | 2012-06-25 | 2017-08-29 | Jsr Corporation | Solid-state image capture element optical filter and application thereof |
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JP2002286929A (ja) * | 2001-03-27 | 2002-10-03 | Mitsubishi Polyester Film Copp | 赤外線フィルター |
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JP2003227922A (ja) * | 2002-02-01 | 2003-08-15 | Sumitomo Metal Mining Co Ltd | プラズマディスプレイパネル用近赤外線吸収フィルターとこのフィルターの製造に用いられる近赤外線吸収剤の分散液 |
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2006
- 2006-02-15 WO PCT/JP2006/302646 patent/WO2006088056A1/ja active Application Filing
- 2006-02-15 US US11/816,250 patent/US20090009899A1/en not_active Abandoned
- 2006-02-15 EP EP06713787A patent/EP1850154A1/en not_active Withdrawn
- 2006-02-15 KR KR1020077019321A patent/KR20070114139A/ko not_active Application Discontinuation
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JP2002286929A (ja) * | 2001-03-27 | 2002-10-03 | Mitsubishi Polyester Film Copp | 赤外線フィルター |
JP2003096215A (ja) * | 2001-09-21 | 2003-04-03 | Teijin Dupont Films Japan Ltd | 近赤外線遮蔽フィルム及びそれを用いた積層体 |
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JP2008170975A (ja) * | 2006-12-11 | 2008-07-24 | Dainippon Printing Co Ltd | 光学シート及び表示装置 |
JP2011100139A (ja) * | 2006-12-11 | 2011-05-19 | Dainippon Printing Co Ltd | 光学シート及び表示装置 |
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Also Published As
Publication number | Publication date |
---|---|
US20090009899A1 (en) | 2009-01-08 |
KR20070114139A (ko) | 2007-11-29 |
EP1850154A1 (en) | 2007-10-31 |
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