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1.发明公开BACKLIGHT AND DISPLAY SYSTEM INCORPORATING SAME 审中-公开HINTERGRUNDBELEUCHTUNG UND ANZEIGESYSTEM DAMIT
公开(公告)号：EP2419771A2
公开(公告)日：2012-02-22
申请号：EP10714528.6
申请日：2010-04-14
发明人： COGGIO, William, D., , WHEATLEY, John A., , LIU, Tao, , OSTLIE, Brian W., , HAO, Encai , KOLB, William Blake, , WANG, Qingbing, , FREE, Michael Benton, , STEINER, Michael L., , TAPIO, Scott M.,
摘要： Lightguide is disclosed. The lightguide includes a light guiding layer for propagating light by total internal reflection, and an optical film that is disposed on the light guiding layer. The optical film includes a plurality of voids, an optical haze that is not less than about 30%, and a porosity that is not less than about 20%. Substantial portions of each two neighboring major surfaces in the lightguide are in physical contact with each other.
摘要翻译： 光导被披露。 光导包括用于通过全内反射传播光的导光层和设置在导光层上的光学膜。 光学膜包括多个空隙，不小于约30％的光学雾度和不小于约20％的孔隙率。 光导中每两个相邻主表面的实质部分彼此物理接触。
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公开(公告)号：EP2558889A1
公开(公告)日：2013-02-20
申请号：EP11715367.6
申请日：2011-04-11
IPC分类号： G02B5/04 , G02F1/13357 , G02B6/00
CPC分类号： G02B5/045 , F21V11/00 , G02B6/0053 , G02F1/133606 , G02F2001/133607 , Y10T428/24612
摘要： Optical stack is disclosed. The optical stack includes a first optical stack that includes, a first optical adhesive layer, and a reflective polarizer layer that is disposed on the first optical adhesive layer. The reflective polarizer layer substantially reflects light of a first polarization state and substantially transmits light of a second polarization state orthogonal to the first polarization state. The optical stack also includes a second optical stack that includes a second optical adhesive layer, a low index layer that is disposed on the second optical adhesive layer and includes a plurality of voids dispersed in a binder, and a light directing film that is disposed on the low index layer and includes a plurality of unitary discrete structures. Portions of each unitary discrete structure penetrate into the first optical adhesive layer. Portions of each unitary discrete structure do not penetrate into the first optical adhesive layer. Each unitary discrete structure defines a penetration depth and a penetration base at the interface between the penetrating and non-penetrating portions of the unitary discrete structure. The penetration base has a minimum penetration base dimension. The plurality of unitary discrete structures has an average penetration depth and an average minimum penetration base dimension. The ratio of the average penetration depth to the average minimum penetration base dimension is at least 1.5. The peel strength between the first and second optical stacks is greater than about 30 grams/inch.
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公开(公告)号：EP2419771B1
公开(公告)日：2020-09-23
申请号：EP10714528.6
申请日：2010-04-14
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