公开(公告)号：KR1020090033652A

公开(公告)日：2009-04-06

申请号：KR1020070098793

申请日：2007-10-01

Applicant: 제일모직주식회사

Inventor： 조규찬 ,  김종관 ,  오세진 ,  성윤정

IPC: G02B6/00 ,  H04M1/22 ,  H01H13/70

Abstract: An optical waveguide film for key pad illumination of a portable terminal and a manufacturing method thereof are provided to reduce light loss in an interface by forming a heterogeneous resin protective layer in at least one surface of a transparent resin layer. An optical waveguide film includes a transparent resin layer(11), a protective layer(12), and a light scattering pattern(2). The transparent resin layer transmits the incident light from a side optical source. The protective layer is positioned in at least one surface of the transparent resin layer. The light scattering pattern is carved in the transparent resin layer or the protective layer and changes the transmission direction of the incident light to a keypad direction positioned in an upper part of the optical waveguide film. The transparent resin layer is a thin film that is a main path transmitting the light from an optical source(4). The protective layer is positioned in at least one surface of the transparent resin layer and prevents the scratch in the surface of the transparent layer or the contamination due to the dust. The protective layer reduces the leakage of the light transmitted by the total reflection in the transparent resin layer.

Abstract translation: 提供一种用于便携式终端的键盘照明的光波导膜及其制造方法，以通过在透明树脂层的至少一个表面上形成非均匀的树脂保护层来减少界面的光损失。 光波导膜包括透明树脂层（11），保护层（12）和光散射图案（2）。 透明树脂层透射来自侧光源的入射光。 保护层位于透明树脂层的至少一个表面上。 将光散射图案雕刻在透明树脂层或保护层中，并将入射光的透射方向改变为位于光波导膜上部的键盘方向。 透明树脂层是作为透射来自光源（4）的光的主路的薄膜。 保护层位于透明树脂层的至少一个表面，防止透明层表面的划伤或灰尘的污染。 保护层减少由透明树脂层中的全反射透射的光的泄漏。

公开(公告)号：KR1020090022312A

公开(公告)日：2009-03-04

申请号：KR1020070087573

申请日：2007-08-30

Applicant: 제일모직주식회사

Inventor： 이진우 ,  김방덕 ,  성윤정 ,  김종관 ,  오세진

IPC: G02B5/02 ,  G02F1/1335

Abstract: A light diffusion film having surface protecting function is provided to reduce the manufacturing cost by using the light diffusion film with no protective film. A multilayer light diffusion film comprises a core layer(11) and a skin layer(12). The emboss pattern is molded in the surface of the skin layer. The core layer is made of the thermoplastic resin. The thermoplastic resin is the methacrylic resin, styrene resin, cycloolefin based resin, and polycarbonate. The skin layer is made of the Acryl resin. The Acryl resin is selected from the group consisting of the methylmethacrylate, ethylmethacrylate, propyl methacrylate, butyl methacrylate, methyl acrylate, ethylacrylate, propyl methacrylate, butyl acrylate, 2- ethylhexylacrylat, 2- hydroxy ethyl acrylate, 2- hydroxyproylacrylate, monoglycerol acrylate, acrylamide, metacryl amide, the alicyclic Acryl resin and their mixture.

Abstract translation: 提供具有表面保护功能的光漫射膜，通过使用没有保护膜的光漫射膜来降低制造成本。 多层光扩散膜包括芯层（11）和表皮层（12）。 压花图案被模制在表皮层的表面上。 芯层由热塑性树脂制成。 热塑性树脂是甲基丙烯酸树脂，苯乙烯树脂，环烯烃基树脂和聚碳酸酯。 表层由丙烯酸树脂制成。 丙烯酸树脂选自甲基丙烯酸甲酯，甲基丙烯酸乙酯，甲基丙烯酸丙酯，甲基丙烯酸丁酯，丙烯酸甲酯，丙烯酸乙酯，甲基丙烯酸丙酯，丙烯酸丁酯，丙烯酸2-乙基己基酯，丙烯酸2-羟基乙酯，丙烯酸2-羟基丙酯，丙烯酸单甘油酯，丙烯酰胺 ，甲基丙烯酰胺，脂环族丙烯酸树脂及其混合物。