Abstract: A material roll including a roll of a continuous sheet material, including an optical member including a polarizer and a release film provided on one side of the optical member with an adhesive interposed therebetween, wherein when no external force is applied, the continuous sheet material curls in the longitudinal direction in such a way that the release film is facing inward, and the continuous sheet material is for use in a process including bonding the optical member to a substrate with the adhesive interposed therebetween to form an optical display unit.

Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.

Abstract: There is provided a display apparatus that can suppress the occurrence of a crack in a circularly polarizing plate in its manufacturing process without reducing designability and mass productivity. A display apparatus according to an embodiment of the present invention includes: a display element; and a circularly polarizing plate placed on a viewer side of the display element. The circularly polarizing plate includes a polarizer and a retardation film. In-plane retardations of the retardation film satisfy a relationship represented by the below-indicated expression (1); and an angle ?1 formed between a slow axis of the retardation film and a direction in which a wiring crimping portion provided along at least one side of a peripheral edge portion of the display element extends satisfies a relationship represented by the below-indicated expression (2): Re(450)<Re(550)??(1) ?1?70°??(2) where Re(450) and Re(550) represent in-plane retardations measured at 23° C.

Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.

Abstract: Provided is a polarizing plate that has an excellent viewing angle characteristic and suppresses changes in display characteristics. A polarizing plate of the present invention is used in an organic EL panel, and includes a polarizer (10), a first retardation layer (30), and a second retardation layer (40). The first retardation layer (30) shows a refractive index characteristic of nx>ny?nz, satisfies a relationship of Re(450)<Re(550), and has a water absorption rate of 3% or less. The second retardation layer (40) shows a refractive index characteristic of nz>nx?ny. A laminate of the first retardation layer (30) and the second retardation layer (40) has an Re(550) of from 120 nm to 160 nm and an Rth(550) of from 40 nm to 100 nm.

Abstract: Provided are a material roll and a method for manufacturing the material roll in which lifting between base films and an optical film is hardly generated. Provided is a material roll (R), wherein a first base film (F12), a first pressure-sensitive adhesive layer (F14), an optical film (F11), a second pressure-sensitive adhesive layer (F15) and a second base film (F13) are wounded together in a manner that said layers are laminated in said order from outer side. An adhesive power A of the first pressure-sensitive adhesive layer (F14) at an interface on the first base film (F12) side, an adhesive power B of the first pressure-sensitive adhesive layer (F14) at an interface on the optical film (F11) side, an adhesive power C of the second pressure-sensitive adhesive layer (F15) at an interface on the optical film (F11) side, and an adhesive power D of the second pressure-sensitive adhesive layer (F15) at an interface on the second base film (F13) side satisfy the relationships A<B and A<C<D.

Abstract: Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?5; and (iii) Rth1>2500 nm.

Abstract: A method of easily manufacturing a light diffusion film by a continuous process, which achieves both good display properties and an increase in viewing angle when used in a liquid crystal display. A method of manufacturing a light diffusion film includes forming a laminate of an original light diffusion film and a photosensitive resin, wherein the photosensitive resin includes at least two types of materials that are different in refractive index from each other; and irradiating the laminate with a collimated laser beam from a side of the original light diffusion film, wherein a reflection hologram formation-preventing layer is located on a side of the laminate opposite from the side of irradiation of the laminate with a collimated laser beam. In the process of irradiating the laminate, the reflection hologram formation-preventing layer prevents formation of a reflection hologram on the photosensitive resin due to a reflected light from the irradiation.

Abstract: Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?7; and (iii) Rth1>2500 nm. Re1, Rth1 and Nz1 are defined by following equations: Re1=(nx1?ny1)d1; Rth1=(nx1?nz1)d1; and Nz1=Rth1/Re1, wherein d1 represents a thickness of the first protective film, nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz1 represents a refractive index in a direction of the thickness of the protective film.

Abstract: Provided is a liquid crystal display in which occurrence of iridescent unevenness is suppressed, even when a film with high level of mechanical properties, chemical resistance and water-barrier properties is used as a polarizer-protective-film. Also, disclosed is a polarizing plate to be used in the liquid crystal display. The liquid crystal display includes a liquid crystal cell, a light source, a first polarizing plate placed between the liquid crystal cell and the light source, and a second polarizing plate placed on a viewer side of the liquid crystal cell. The first polarizing plate includes a polarizer and a first protective film placed on a light source side principal surface of the first protective film, and the first protective film satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?5; and (iii) Rth1>2500 nm.

Abstract: A video image appreciation system 10 of the present invention comprises: a self-luminous display 30; and a circularly-polarized light source 11, wherein the self-luminous display 30 comprises in order: (a) a first wavelength plate 13 having functions to convert circularly-polarized light into linearly-polarized light and vice versa; (b) a polarizing film 15; (c) a linearly-polarized separation film 20; (d) a second wavelength plate 18 having functions to convert circularly-polarized light into linearly-polarized light and vice versa; and (e) a self-luminous panel 16.

Abstract: A video viewing facility is provided. A circularly polarized light source is provided outside a self-luminous display. The self-luminous display includes a first wave plate having a function of converting circularly polarized light into linearly polarized light; a polarizing film; a second wave plate having a function of converting circularly polarized light into linearly polarized light; a circularly polarized light separating film; and a self-luminous panel, in this order from a visible side of the self-luminous display.

Abstract: Adhesive composition according to the present invention includes an adhesive base agent consisting of a monomer and a polymerization initiator. Adhesion of the adhesive composition changes to take local maximum value, minimum value and a value greater than the local maximum value along with increase of irradiation amount of the electromagnetic wave or particle beam irradiated to the adhesive composition under a predetermined temperature environment. In a method for manufacturing a laminate according to the present invention allows for easy peeling of adherends and a layer of the adhesive composition when adhesion of the adhesive composition takes the minimum value.

Abstract: An adhesive composition which allows for preventing misalignment when mutually laminating adherends, mutually strongly bonding the adherends when correction of lamination is not required, as well as peeling the adherends without causing any damage thereto when correction of lamination is required. The adhesive composition includes an adhesive base agent consisting of a monomer and a polymerization initiator. Adhesive strength of the adhesive composition changes to take a local maximum value, a local minimum value and a value greater than the local maximum value along with increase of irradiation amount of the electromagnetic wave or particle beam irradiated to the adhesive composition under a predetermined temperature environment.

Abstract: Provided are an optical display device manufacturing system and a method for manufacturing an optical display device which can bond optical films to both surfaces of a liquid crystal cell in good condition with a simpler constitution. A first optical film F11 is fed in an orthogonal direction with respect to the width direction from a first material roll R1 formed by winding the first optical film F11 in such a manner that an absorption axis B1 extends in the orthogonal direction, and then the first optical film F11 is cut and bonded to one surface of a liquid crystal cell. A second optical film F21 is fed in an orthogonal direction with respect to the width direction from a second material roll R2 formed by winding the second optical film F21 in such a manner that an absorption axis B2 extends in the width direction, and then the second optical film F21 is cut and bonded to the other surface of the liquid crystal cell.

Abstract: A video image evaluation equipment of the present invention is capable of converting circularly-polarized light emitted from a circularly polarizing light source into linearly-polarized light so as to transmit an absorption-type linear polarizer by a wavelength plate to be incident on a liquid crystal panel. This makes it possible to enter and reflect light emitted from the circularly polarizing light source on the liquid crystal panel without loss, which leads to display brighter video images than conventional ones.

Abstract: A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T1) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlight light guide plate (L), and a reflection plate (R) having a repetitive slope structure is disposed on the other surface of the sidelight type backlight light guide plate (L). The invention light source is less in absorption loss due to repetition of light reflection and the like.

Abstract: There is provided a liquid crystal panel exhibiting a high contrast ratio and a liquid crystal display apparatus including the liquid crystal panel. The liquid crystal panel of the present invention includes a first polarizer, a first optical compensation layer, a liquid crystal cell, a second optical compensation layer, and a second polarizer in the stated order from a viewer side. The first optical compensation layer and the second optical compensation layer have a refractive index profile of nx>ny>nz, and a light transmittance (T2) of the second polarizer is larger than a light transmittance (T1) of the first polarizer.

Abstract: A method for manufacturing an optical display unit including a substrate and an optical member having a polarizer, the optical member being bonded to the substrate with an adhesive interposed therebetween. The method includes a cutting step of feeding a continuous sheet material from a roll of the continuous sheet material, the continuous sheet material including the optical member and a release film provided on one side of the optical member with the adhesive interposed therebetween, and cutting the continuous sheet material by cutting means, while leaving the release film uncut, and a bonding step including bonding the sheet material to the substrate with the adhesive interposed therebetween, while removing the release film. When no external force is applied to the sheet material, the sheet material curls in the longitudinal direction so that the release film is facing inward.

Abstract: The liquid crystal panel 1 of the present invention comprises a liquid crystal cell 2, a first polarizer 31 disposed on one surface side of the liquid crystal cell 2, a second polarizer 41 disposed on the other surface side of the liquid crystal cell 2, and first optical compensation layer 5 and second optical compensation layer 6 disposed between the first polarizer 31 and second polarizer 41, and the liquid crystal cell 2 satisfies a relationship of 0.8 Re [450]/Re [550] 1, the first optical compensation layer 5 satisfies relationships of the Nz coefficient is from 0.8 to 1.4 and 0.8 Re[450]/Re[550] 1, and the second optical compensation layer 6 satisfies relationships of nx =ny>nz and 0.98 Re[450]/Re[550] 1.04. The liquid crystal panel of the present invention is hardly generated color shift when the panel is viewed from all azimuth angle directions and polar angle directions, so that the liquid crystal panel is excellent in color display characteristics.