摘要:
An optical film includes a transparent film having provided on one side thereof an adhesive layer, a layer which includes a plurality of groove structures, each structure having optical-path changing slopes oriented substantially toward certain directions at an angle of 35 to 48 degrees relative to the transparent film, and which is laid on the other side of the transparent film, a transparent cover film for covering the surface of the layer in which the groove structures are formed, and at least an anti-reflection layer and an anti-moisture layer laid on an exterior side of the cover film.
摘要:
A light pipe includes rectangular upper and lower surfaces, an incidence side surface which is one of side surfaces between the upper and lower surfaces, and light output means formed in one of the upper and lower surfaces so that light incident on the incidence side surface exits from the other one of the upper and lower surfaces through the light output means. A radius of curvature of a corner portion formed at a point of intersection between the incidence side surface and each of side surfaces adjacent to the incidence side surface is not larger than 0.3 mm. A plane light source unit in which a linear light source is disposed on the incidence side surface of the light pipe is provided. A transmission type or reflection type, or reflection-transmission double type liquid-crystal display device which has at least such a plane light source unit and a liquid-crystal cell is provided.
摘要:
A roll of a continuous web of an optical film laminate with predefined slit lines for use in a continuous manufacturing system by laminating optically functional film sheets to liquid-crystal panels. The optical film laminate with predefined slit lines comprises an optically functional film having an adhesive layer which is subjected to a preliminary inspection, and a carrier film releasably laminated to the adhesive layer. Defect-free normal sheets and defective or defect-containing sheets having predefined length corresponding to the dimension of the liquid-crystal panel are formed on the carrier film by sequentially forming slit lines along the transverse direction with respect to the lengthwise direction of the optical film laminate.
摘要:
A method for manufacturing a liquid crystal display element is provided which simultaneously achieves the object of cutting an optical film without causing degradation in appearance and the object of preventing the film from being broken in a continuous bonding process, and includes: providing a long sheet material including a laminate of an optical film containing a polarizer, a pressure-sensitive adhesive layer, and a carrier film temporarily bonded to the pressure-sensitive adhesive layer; cutting the long sheet material at predetermined intervals, while maintaining the continuity of the carrier film; peeling off the carrier film by a tensile force; and continuously bonding the resulting optical film pieces to liquid crystal panels, respectively, through the pressure-sensitive adhesive layer exposed by the peeling off, while feeding the resulting optical film pieces, wherein the cutting is performed to such a depth as to substantially reach the carrier film, and the carrier film is cut to a depth less than half of the thickness of the carrier film at least both end portions in the width direction of the carrier film.
摘要:
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.
摘要:
An objective of the present invention is to alleviate streaky display unevenness that occurs in liquid crystal display elements when feeding optical function film from a continuous roll having score lines in the width direction thereof and bonding the optical function film on a liquid crystal panel. A continuous roll comprises an optical film laminate (15) that is in the form of a continuous web wound into a roll and comprises at least an optical function film (10) and a carrier film (13) releasably placed on the optical function film (10). The optical function film (10) is divided into a plurality of cut pieces by score lines (16) formed along a widthwise direction of the optical film laminate (15). It is possible to resolve the problem by making the bending rigidity per unit longitudinal length of the optical function film fall within a specific range.
摘要:
The method for manufacturing a liquid crystal display device includes carrier film feeding steps including feeding long carrier films from continuous rolls, respectively; peeling steps including folding back each of the carrier films at a front end part placed on a carrier film feed path so that the optical films are peeled off from the carrier films, respectively; and bonding steps including bonding the optical films to the viewer side and back side of a liquid crystal panel, wherein in the bonding steps, the optical films are bonded to the liquid crystal panel in such a manner that the number of times the optical film is bonded to the back side of the liquid crystal panel is greater than the number of times the optical film is bonded to the viewer side of the liquid crystal panel.
摘要:
A method of the present invention for producing a polarizing plate including a polarizer and a transparent protective film provided on one side of the polarizer with an adhesive layer interposed therebetween, include the steps of: (A) irradiating at least one side of a polarizer with vacuum ultraviolet rays to treat a surface of the polarizer; (B) bonding a first transparent protective film to the side of the polarizer, which has been subjected to the surface treatment step (A), with a first adhesive layer interposed therebetween to produce a temporary polarizing plate; and (C) peeling off the first transparent protective film and a surface layer of the polarizer, which has been subjected to the surface treatment, from the temporary polarizing plate. A thin polarizing plate in which shrinkage-induced bending is reduced may be obtained by the method.
摘要:
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.
摘要:
Provided are a liquid crystal panel which contributes to reduction in thickness and is excellent in optical properties and a liquid crystal display apparatus. The liquid crystal panel of the present invention includes a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on another side of the liquid crystal cell, a first optical compensation layer and a first negative C plate disposed between the first polarizer and the liquid crystal cell, and a second negative C plate and a second optical compensation layer disposed between the liquid crystal cell and the second polarizer, in which the first optical compensation layer is disposed between the first polarizer and the first negative C plate, the second optical compensation layer is disposed between the second negative C plate and the second polarizer, the first and second optical compensation layers each include a coating layer functioning as a λ/4 plate, and each have a thickness of 0.3 to 3 μm, and the first and second negative C plates each include a coating layer, and each have a thickness of 0.5 to 10 μm.