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公开(公告)号：US20140093650A1
公开(公告)日：2014-04-03
申请号：US13631845
申请日：2012-09-28
CPC分类号： B29D11/00663 , B29C59/046 , B29C2059/023 , B29D11/00326 , B29D11/0073 , G02B6/0036 , G02B6/0053 , G02B6/0065
摘要： The present invention provides an extrusion casting method for making composite light guide plates with a thickness of more than about 1 mm, for use in LCD backlights or in general illumination devices. In the fabrication method of the present invention the extrusion roll molding process is combined with coating and lamination steps to enable a cost effective roll-to-roll or roll-to-sheet manufacture of thick composite light guide plates wherein one or both principal surfaces of the light guide plate contain a pattern to enable extraction and redirection of light by the light guide plate from a light source or multiple light sources placed at one or multiple edges of the light guide plate. The composite light guide plate comprises a patterned film and a pre-cut sheet joined together by an adhesive layer. In order to attain good light extraction efficiency the adhesive layer and the two constituent layers of the light guide plate must be optically matched such that the refractive indices of any two of the three materials of the composite light guide plate can differ by no more than 0.01.
摘要翻译： 本发明提供一种用于制造厚度大于约1mm的复合导光板的挤压成型方法，用于LCD背光灯或一般的照明装置。 在本发明的制造方法中，将挤出辊成型工艺与涂覆和层压步骤组合以实现厚复合导光板的成本有效的卷对卷或辊对片制造，其中一个或两个主表面 导光板包含能够通过导光板从位于导光板的一个或多个边缘处的光源或多个光源引出和重定向光的图案。 复合导光板包括图案化膜和通过粘合剂层接合在一起的预切割片。 为了获得良好的光提取效率，导光板的粘合剂层和两个构成层必须光学匹配，使得复合导光板的三种材料中的任何两种的折射率可以不超过0.01 。
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公开(公告)号：US20140092632A1
公开(公告)日：2014-04-03
申请号：US13631840
申请日：2012-09-28
IPC分类号： F21V8/00
CPC分类号： B29D11/00663 , G02B6/0036 , G02B6/0065
摘要： The present invention provides a composite light guide plate having a thickness of more than about 1 mm, for use in LCD backlights or in general illumination devices. In the fabrication method of the present invention the extrusion roll molding process is combined with coating and lamination steps to enable a cost effective roll-to-roll or roll-to-sheet manufacture of the thick composite light guide plate wherein one or both principal surfaces of the light guide plate contain a pattern to enable extraction and redirection of light by the light guide plate from a light source or multiple light sources placed at one or multiple edges of the light guide plate. The composite light guide plate comprises a patterned film and a pre-cut sheet joined together by an adhesive layer. In order to attain good light extraction efficiency the adhesive layer and the two constituent layers of the light guide plate must be optically matched such that the refractive indices of any two of the three materials of the composite light guide plate can differ by no more than 0.01.
摘要翻译： 本发明提供一种厚度大于约1mm的复合导光板，用于LCD背光灯或普通照明装置。 在本发明的制造方法中，挤压辊成型工艺与涂覆和层压步骤组合以实现厚复合导光板的成本有效的卷对卷或辊对片制造，其中一个或两个主表面 的导光板包含能够通过导光板从导光板的一个或多个边缘处的光源或多个光源引出和重定向光的图案。 复合导光板包括图案化膜和通过粘合剂层接合在一起的预切割片。 为了获得良好的光提取效率，导光板的粘合剂层和两个构成层必须光学匹配，使得复合导光板的三种材料中的任何两种的折射率可以不超过0.01 。
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