Light-reflecting polycarbonate resin sheet and light-reflecting laminate using same

Abstract

A reflective polycarbonate resin sheet is characterized in that at least one side of the polycarbonate resin foam layer is equipped with a light-resistant layer capable of blocking or absorbing ultraviolet light. A reflective laminate is obtained by laminating such a reflective polycarbonate resin sheet to a metal plate. The reflective polycarbonate resin sheet has high light resistance while maintaining its excellent reflective properties.

Description

technical field [0001] This invention relates to reflective polycarbonate resin sheets and reflective laminates using the same. More specifically, the present invention relates to such reflective polycarbonate resin sheets and reflective laminates using the same, which are suitable for use in reflectors of backlighting devices for liquid crystal displays, lighting fixtures for housing and various facilities, fluorescent lamps, Or light source parts such as LED (light emitting diode), EL (electroluminescent element), plasma, laser, etc. Background technique [0002] In general, reflective foamed sheets (hereinafter, films also belong to the category of sheets) include metal plates or foils / foamed plastic sheets, metal deposited foamed plastic sheets, foamed stretched PET films or their metal Laminates and whatnot. In recent years, reflective foam sheets have found widespread use in LCD displays and are expected to continue to grow, especially in LCD TVs and generally i...

AI Technical Summary

Problems solved by technology

In direct backlighting for liquid crystal displays, reflective sheets made of conventional foamed PET films or microporous foamed PET films cannot provide the required high enough reflective performance

Reflective sheeting made of polycarbonate resin foam has a high reflective capacity (=light reflection ratio), but it does not have sufficient light resistance compared to reflective sheeting made of microcellular foamed PET film