-
公开(公告)号：US08926777B2
公开(公告)日：2015-01-06
申请号：US13629570
申请日：2012-09-27
发明人： Myung Duck Suh , Hyun Doo Lee , Sang Hun Lee , Kyoung-IL Lee , Jong Sun Yoon
CPC分类号： B32B5/16 , B32B27/08 , B32B27/281 , B32B27/286 , B32B27/308 , B32B27/36 , B32B27/365 , B32B38/06 , B32B2037/243 , B32B2038/0076 , B32B2250/24 , B32B2255/10 , B32B2255/26 , B32B2255/28 , B32B2307/406 , B32B2551/00 , G02B5/0221 , Y10T428/24405
摘要： The present invention relates to a method for preparing an optical sheet comprising the steps of: (a) preparing a transfer film having a single roughened side by coating one side of a first substrate with resin component comprising 100 parts by weight of binder resin and 70 to 130 parts by weight of spherical organic polymer beads, followed by drying; (b) laminating the transfer film preparing in step (a) with an ultraviolet-curable (UV-curable) resin-coated layer, which prepared by coating one side of a second substrate with UV-curable resin, such that the roughened side of the transfer film is facing the UV-curable resin-coated side of the second substrate; and (c) forming a roughened diffusive layer on the single-side of the second substrate having refractive index of 1.41 to 1.59 by curing the laminate obtained in step (b), followed by separating and removing the transfer film, wherein the roughened side of the transfer film has a segment angle of 130 to 150°. The optical sheet prepared by the method of the present invention has high brightness, which can also provide masking of prism sheet pattern, and is safe from surface stains and interface scratches between the sheet and the polarizing plate positioned underneath, thus, can be used as an optical sheet in backlight unit of LCD.
摘要翻译： 本发明涉及一种制备光学片的方法，包括以下步骤：（a）通过用包含100重量份粘合剂树脂和70重量份的树脂组分涂覆第一基材的一侧来制备具有单一粗糙面的转印膜 至130重量份的球形有机聚合物珠粒，然后干燥; （b）将步骤（a）中制备的转印膜与通过用UV可固化树脂涂覆第二基材的一侧制备的紫外线固化（UV固化）树脂涂层来层压，使得粗糙面 转印膜面向第二基板的可UV固化树脂涂覆侧; 和（c）通过固化步骤（b）中获得的层压体，在折射率为1.41〜1.59的第二基板的单面上形成粗糙化的扩散层，然后分离除去转印膜，其中粗糙化侧 转印膜的分割角度为130〜150°。 通过本发明的方法制备的光学片具有高亮度，其还可以提供棱镜片图案的掩蔽，并且安全地防止片材和位于下面的偏振片之间的表面污渍和界面划痕，因此可以用作 LCD背光单元中的光学片。
搜索结果
1 条记录 (耗时 0.016 秒)
