Abstract: A polarizing plate of the present invention includes a polyvinyl alcohol-based polarizer; and transparent protective films provided on both sides of the polarizer with an adhesive layer interposed between the polarizer and each transparent protective film, wherein the transparent protective film on one side comprises a lactone ring structure-containing (meth)acrylic resin and has an in-plane retardation of less than 40 nm and a thickness direction retardation of less than 80 nm, and the transparent protective film on the other side is a retardation plate that comprises a cellulose ester and satisfies the relation: nx>ny>nz, wherein nx is a refractive index in an X-axis direction where the in-plane refractive index is maximum, ny is a refractive index in a Y-axis direction perpendicular to the X-axis, and nz is a refractive index in a Z-axis direction corresponding to the thickness direction. The polarizing plate can satisfy durability and display uniformity (unevenness).

Abstract: A polarizing plate of the present invention includes a stretched laminate that is a laminate including a base material layer and a hydrophilic polymer layer and has undergone a stretching process, and at least a dichroic substance is adsorbed to the hydrophilic polymer layer. The polarizing plate of the present invention can be prevented from curling even when the polarizer is reduced in thickness.

Abstract: An adhesive for polarizing plate used in order to provide a transparent protective film on at least one surface of a polarizer, comprising a crosslinking agent in the range of more than 30 parts by weight and 46 parts by weight or less relative to 100 parts by weight of a polyvinyl alcohol-based resin having an acetoacetyl group, is excellent in water resistance.

Abstract: A semiconductor device is proposed in which signal delay due to compensation capacitance elements in peripheral circuit element regions is eliminated. The semiconductor device includes: a first region including memory cells; a second region 10 including a functional circuit; cell capacitors formed in the first region; and compensation capacitance elements 36 to 38 formed in the second region 10, wherein the compensation capacitance elements 36 to 38 each include a lower electrode 36, a capacitance insulating film 37, and an upper electrode 38, the lower electrode 36, capacitance insulating film 37, and upper electrode 38 being the same as those of the cell capacitors, and wherein the compensation capacitance elements are formed over an upper layer of the second region 10 excluding upper layer portions of drain diffusion layers 44, 46 or gate electrodes 32 of transistors in the functional circuit.

Abstract: A pressure-sensitive adhesive and retardation layer-attached polarizing plate (4) of the invention comprises a retardation layer-attached polarizing plate (3) comprising a polarizing plate (2) that comprises an iodine-based polarizer (1) and a transparent protective film laminated on both sides of the polarizer (1); and a retardation layer provided on at least one of the transparent protective films; and an acrylic pressure-sensitive adhesive layer laminated on the retardation layer side of the retardation layer-attached polarizing plate (3), wherein the iodine-based polarizer (1) has a ratio (K/I), which is the content (% by weight) of potassium (K) to the content (% by weight) of iodine (I) in the polarizer, of 0.200 to 0.

Abstract: An adhesive of the invention for polarizing plates used for forming an adhesive layer in a polarizing plate in which a polarizer and a transparent protective film is are adhering with each other via the adhesive layer, wherein the adhesive for polarizing plates is an aqueous solution containing a polyvinyl alcohol-based resin having an acetoacetyl group and a crosslinking agent, and the aqueous solution has a pH of 4.3 or less. The adhesive of the invention for polarizing plates is good in durability and long in pot life.

Abstract: A method for producing a polarizing plate of the invention comprises bonding a transparent protective film (A) and another transparent protective film (B) to one side of a polarizer and to another side of the polarizer, respectively, with an adhesive, wherein the polarizer has a moisture content of 15 to 30% by weight, the transparent protective film (A) is made of the same quality material as the transparent protective film (B), the transparent protective film (A) is thicker than the transparent protective film (B), and the transparent protective film (A) has a moisture content higher than that of the transparent protective film (B). The polarizing plate obtained by the production method can suppress curling.

Abstract: This invention provides a method for manufacturing a combination-type optical film comprising a plurality of optical films each having at least one end face at which the optical films are opposed to one another, comprising the steps of: (1) opposing the end faces of the optical films to one another with a gap provided therebetween; (2) entirely holding the opposed portions of the optical films with a holding member placed on at least one side; (3) connecting an organic solvent- or adhesive-containing vessel to one side of the gap between the opposed portions of the optical films to charge the organic solvent or the adhesive into the gap with the aid of a negative pressure state; and (4) removing the organic solvent or the adhesive under reduced pressure to bond the opposed end faces to one another.

Abstract: The present invention provides a method for manufacturing a polarizing film, by which, even when a wide raw film is used, it is possible to obtain a polarizing film that achieves excellent optical characteristics as well as uniformity in in-plane optical characteristics. The method includes the steps of dyeing a polymer film; stretching the dyed film; and drying the film that has undergone the dyeing and stretching steps while conveying the film with rolls. In the drying step, at least two rolls are used as the rolls and the film is dried under a condition that a ratio (R/W) of a distance (R) between the adjacent rolls to an initial width (W) of the polymer film is not less than 0.5 and not more than 4.0.

Abstract: A polarizer that can be used for forming a liquid crystal display or an electroluminescent display with less display irregularities and excellent display characteristics is provided. The polarizer contains a dichroic material in a matrix, and its in-plane retardation at a measurement wavelength providing no absorption is in a range of 950 to 1350 nm. The measurement wavelength is preferably a wavelength that the dichroic material provides no absorption, and it is 1000 nm, for example.

Abstract: Problem to be Solved: To provide a cutting method for a laminated sheet to have excellent accuracy and an excellent surface state when cutting and finishing a cutting surface of the laminated sheet. Solution: In this cutting method for the laminated sheet 1, the cutting surface of the laminated sheet 1 cut into a rectangular shape is cut and finished. A control system for the cutting is performed by a copying system using a copying mold 3 and a copying roller 4. Preferably, the cutting surfaces of a plurality of laminated sheets 1 are cut together in an overlapped state of the plurality of laminated sheets 1.

Abstract: A method for producing a polarizing plate of the invention comprises bonding a transparent protective film (A) and another transparent protective film (B) to one side of a polarizer and to another side of the polarizer, respectively, with an adhesive, wherein the polarizer has a moisture content of 15 to 30% by weight, the transparent protective film (A) is made of the same quality material as the transparent protective film (B), the transparent protective film (A) is thicker than the transparent protective film (B), and the transparent protective film (A) has a moisture content higher than that of the transparent protective film (B). The polarizing plate obtained by the production method can suppress curling.

Abstract: A polarizing plate of the invention comprises a polarizer; and a transparent protective film provided on at least one side of the polarizer with an adhesive layer interposed therebetween, wherein the adhesive layer is formed of an adhesive for polarizing plate comprising: a resin solution comprising a polyvinyl alcohol-based resin, a crosslinking agent and a colloidal metal compound with an average particle size of 1 nm to 100 nm, wherein 200 parts by weight or less of the colloidal metal compound is added to 100 parts by weight of the polyvinyl alcohol-based resin, and the transparent protective film provided on at least one side is a retardation plate having a front retardation of 40 nm or more and/or a thickness direction retardation of 80 nm or more. The polarizing plate can reduce the occurrence of knicks.

Abstract: A method of producing a polarizing plate of the present invention comprises the steps of: bonding a protective film to at least one side of a polarizing film that is produced through at least uniaxial stretching and has an absorption axis in the uniaxial stretching direction, and removing by cutting at least one of the edges of the polarizing film that are substantially parallel to the direction of the absorption axis before the bonding the protective film. The method widen the effective width of the polarizing plate, and a large size polarizing plate was obtained.

Abstract: The combination optical film of the invention comprises a plurality of optical films in which at least one end face of the optical films are butted against one another, wherein the butted end faces substantially match one another in shape, the butted end faces each have a portion non-vertical to the front and back surfaces of the optical films, and the end faces are butted against one another so as not to form a continuous gap in the normal direction of the optical films from the front to back surfaces. The combination optical film can prevent light leakage without degrading appearance.

Abstract: This invention provides a method for producing a polarizing film, comprising: a dyeing step and a stretching step, a plurality of films being dipped into at least one processing liquid without contacting each other.

Abstract: An adhesive of the invention for polarizing plates used for forming an adhesive layer in a polarizing plate in which a polarizer and a transparent protective film is are adhering with each other via the adhesive layer, wherein the adhesive for polarizing plates is an aqueous solution containing a polyvinyl alcohol-based resin having an acetoacetyl group and a crosslinking agent, and the aqueous solution has a pH of 4.3 or less. The adhesive of the invention for polarizing plates is good in durability and long in pot life.

Abstract: A process for producing a polarizing film including a step of stretching a raw film, wherein the ratio (L/W) of stretching distance (L) to width of initial raw film (W) is from 0.5 to 30.

Abstract: Disclosed herein is a method for producing an optical film, comprising carrying out a given process by allowing a film having a joint to continuously pass through the given process while meandering the film to increase the length of a film transport path, wherein when the joint of the film passes through a given position in the given process, the film transport path is made straight to allow the joint to pass through the given position without meandering the film.

Abstract: A polarizer that can be used for forming a liquid crystal display or an electroluminescent display with less display irregularities and excellent display characteristics is provided. The polarizer contains a dichroic material in a matrix, and its in-plane retardation at a measurement wavelength providing no absorption is in a range of 950 to 1350 nm. The measurement wavelength is preferably a wavelength that the dichroic material provides no absorption, and it is 1000 nm, for example.