摘要:
The present invention provides a prism-integrated light-diffusing plate, characterized in that a prismatic portion formed of a plurality of prism-shaped protrusions is provided on at least one surface of a light-diffusing sheet which is formed of a transparent resin material containing a light-diffusing agent and which has a thickness of 0.5 to 3 mm and a total light transmittance of 60 to 95%. The prism-integrated light-diffusing plate serves as both a prism sheet and a light-diffusing plate, diffuses light uniformly, and increases the brightness of an illumination cover or a liquid crystal display backlight for a large screen.
摘要:
The present invention relates to a multilayered sheet for light reflection for forming a thin and lightweight reflector, a reflector using it, a lighting unit equipped with the reflector and a liquid crystal display device equipped with the lighting unit, with reduced numbers of components in the lighting unit and in the assembly steps that are attained by preparing a reflector comprising a light reflecting plate, a boss portion for attaching a circuit, a reinforced rib portion and a light diffuser panel supporting frame, and, optionally comprising a lamp holder, a lamp supporter and a light diffuser panel supporting column integrated in a single piece, a lighting unit equipped with the reflector and a liquid crystal display device using the lighting unit, wherein the multilayered sheet for light reflection includes a multilayered sheet for light reflection comprising a light reflecting resin layer (A) and a resin substrate layer (B) which contains an inorganic filler in an amount of 30% by mass or more and has the flexural modulus of 5 GPa or more, and a multilayered sheet for light reflection further provided with a flexible resin layer (C) on the side of the resin substrate layer.
摘要:
Provided is a light diffusing resin composition, which, when molded into a large-plane light diffusing plate, is free of yellowing due to thermal deterioration, and can exhibit good light diffusing property, and a light diffusing plate using the resin composition. The light diffusing resin composition includes 100 parts by mass of a polycarbonate resin containing a polycarbonate copolymer (A) having repeating structural units represented by formulae (I) and (II) and 0.01 to 10 parts by mass of a light diffusing agent (B).
摘要:
The present invention provides a housing structure for a lighting device, including a molded product having a thickness of 1.5 to 3.5 mm produced from a polycarbonate-based resin composition containing 20 to 60% by mass of titanium oxide, and a method of producing a housing structure for a lighting device, including: subjecting a polycarbonate-based resin composition containing 20 to 60% by mass of titanium oxide into a sheet; and subjecting the sheet to vacuum forming or pressing to produce a box-type molded product in which a fixing portion of a terminal of a light source is molded integrally to an inner side portion of the molded product. Also provided are a housing structure for a lighting device, which is lightweight and requires small man-hour for assembling, a method of manufacturing the same, a backlight device using the housing for a lighting device, and a liquid crystal display member.
摘要:
A light reflecting sheet having high light reflectance and an excellent light shielding property and a molded product using the same are provided. The light reflecting sheet has a light reflecting layer that has voids inside thereof and formed from a thermoplastic resin composition provided on at least one side of a base material sheet formed from a polycarbonate resin composition containing a combination of (A) 90 to 50% by mass of a polycarbonate-based polymer and (B) 10 to 50% by mass of titanium oxide. The molded product is formed from the light-reflecting sheet.
摘要:
A modularized reflector is produced by integrating or laminating: a sheet metal back chassis in which a light source supporting section, a through-hole or a groove for extracting a light source electrode terminal, and a frame for supporting a light diffusing plate and an optical film are integrally formed through sheet metal working; and a light reflecting layer made of a molded product of a light reflective thermoplastic resin material formed into a shape for covering the back chassis. By producing a backlight device and a liquid crystal display using the reflector, there are provided the reflector reduced in the number of components, in the number of assembly steps, and in weight and thickness, and a back light and a liquid crystal display using the reflector.
摘要:
The present invention provides a light-diffusing resin composition comprising (A) an aromatic polycarbonate resin in an amount of 100 parts by mass, (B) an acrylic resin in an amount of 0.01 to 1 part by mass, and (C) a light-diffusing agent in an amount of 0.01 to 10 parts by mass, the light-diffusing resin composition which is usable for optical elements in the field of liquid crystal displays, such as light diffuser plates, optical lenses and optical guide plates, street lamp covers, glass substitutes such as laminated glass for vehicles or construction materials, and the like.
摘要:
A polycarbonate resin composition which has excellent flame retardancy, even when containing neither any phosphorus compound flame retardant nor any halogenated flame retardant, and which is highly reflective and has light-shutting properties and excellent thermal stability. The polycarbonate resin composition comprises 5 to 98 parts by weight of a polycarbonate/polyorganosiloxane copolymer, 0 to 93 parts by weight of a polycarbonate resin, 2 to 50 parts by weight of titanium oxide, 0 to 1.0 parts by weight of a fibril-forming polytetrafluoroethylene, and 0.05 to 2.0 parts by weight of an organosiloxane, the sum of the ingredients (A), (B), and (C) is 100 parts by weight.
摘要:
A polycarbonate resin composition which has excellent flame retardancy, even when containing neither any phosphorus compound flame retardant nor any halogenated flame retardant, and which is highly reflective and has light-shutting properties and excellent thermal stability. The polycarbonate resin composition comprises 5 to 98 parts by weight of a polycarbonate/polyorganosiloxane copolymer, 0 to 93 parts by weight of a polycarbonate resin, 2 to 50 parts by weight of titanium oxide, 0 to 1.0 parts by weight of a fibril-forming polytetrafluoroethylene, and 0.05 to 2.0 parts by weight of an organosiloxane, the sum of the ingredients (A), (B), and (C) is 100 parts by weight.
摘要:
The invention relates to a styrene resin material, especially a styrene-based resin composition having good high-speed castability and good spreadability and favorable to extrusion molding lines. Of the styrene-based resin material, the product of the melt index (MI, g/10 min) and the melt tension (MT, g) measured under a specific condition is at least 20. Concretely, for example, it is a styrene-based resin composition comprising (A) from 35 to 95% by weight of a styrenic polymer having a syndiotactic structure, (B) from 5 to 50% by weight of a specific polyethylenic resin, and (C) from 0 to 15% by weight (including 0) of a specific styrene-olefin copolymer.