公开(公告)号：WO2011130155A1

公开(公告)日：2011-10-20

申请号：PCT/US2011/031910

申请日：2011-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  BOYD, Gary T. ,  EDMONDS, William F. ,  JONES, Vivian W. ,  KOTCHICK, Keith M. ,  PHAM, Tri D. ,  VAN DERLOFSKE, John F., III

Inventor： BOYD, Gary T. ,  EDMONDS, William F. ,  JONES, Vivian W. ,  KOTCHICK, Keith M. ,  PHAM, Tri D. ,  VAN DERLOFSKE, John F., III

IPC: G02B5/04 ,  G02F1/13357 ,  G02B6/00

CPC classification number: G02B5/045 ,  F21V11/00 ,  G02B6/0053 ,  G02F1/133606 ,  G02F2001/133607 ,  Y10T428/24612

Abstract: Optical stack is disclosed. The optical stack includes a light redirecting film that includes a first structured major surface that includes a plurality of unitary discrete structures. The optical stack also includes an optical adhesive layer that is disposed on the light directing film. At least portions of at least some unitary discrete structures in the plurality of unitary discrete structures penetrate into the optical adhesive layer. At least portions of at least some unitary discrete structures in the plurality of unitary discrete structures do not penetrate into the optical adhesive layer. The peel strength of the light redirecting film and the optical adhesive layer is greater than about 30 grams/inch. The average effective transmission of the optical stack is not less or is less than by no more than about 10% as compared to an optical stack that has the same construction except that no unitary discrete structure penetrates into the optical adhesive layer.

Abstract translation: 公开了光堆叠。 光学堆叠包括光重定向膜，其包括包括多个单一离散结构的第一结构化主表面。 光学堆叠还包括设置在导光膜上的光学粘合剂层。 多个单一离散结构中的至少一些单一离散结构的至少一部分渗入光学粘合剂层。 多个单一离散结构中的至少一些单一离散结构的至少部分不会渗入光学粘合剂层。 光重新定向膜和光学粘合剂层的剥离强度大于约30克/英寸。 与具有相同结构的光学堆叠相比，光学堆叠的平均有效透射率不小于或小于不超过约10％，除了没有一体离散结构渗透到光学粘合剂层中。

公开(公告)号：WO2011130144A1

公开(公告)日：2011-10-20

申请号：PCT/US2011/031892

申请日：2011-04-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  EDMONDS, William, F. ,  JONES, Vivian, W. ,  KOTCHICK, Keith, M. ,  PHAM, Tri, D. ,  VAN DERLOFSKE, John F., III

Inventor： EDMONDS, William, F. ,  JONES, Vivian, W. ,  KOTCHICK, Keith, M. ,  PHAM, Tri, D. ,  VAN DERLOFSKE, John F., III

IPC: G02B5/04 ,  G02F1/13357 ,  G02B6/00

CPC classification number: G02B5/045 ,  F21V11/00 ,  G02B6/0053 ,  G02F1/133606 ,  G02F2001/133607 ,  Y10T428/24612

Abstract: Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side facet makes an angle with the plane of the light directing film in a range from about 35 degrees to about 55 degrees. Each light directing portion also includes a first base that is defined by the plurality of first side facets and has a first minimum dimension. Each light directing portion also has a first maximum height. Each unitary discrete structure also includes a bonding portion that is primarily for bonding the light directing film to a surface. The bonding portion is disposed on and between the plurality of first side facets and includes a plurality of second side facets. Each second side facet makes an angle with the plane of the light directing film greater than about 70 degrees. The bonding portion also includes a second base that is defined by the plurality of second side facets and has a second minimum dimension less than about 10% of the first minimum dimension. The bonding portion also has a second maximum height. The ratio of the second maximum height to the second minimum dimension is at least about 1.5.

Abstract translation: 公开了导光膜。 导光膜包括第一结构化主表面和相对的第二主表面。 第一结构化主表面包括多个单一离散结构。 每个单一离散结构包括主要用于引导光并包括多个第一侧面的导光部分。 每个第一侧面与导光膜的平面成角度在约35度至约55度的范围内。 每个光引导部分还包括由多个第一侧面定义并且具有第一最小尺寸的第一基座。 每个导光部分也具有第一最大高度。 每个单一离散结构还包括主要用于将光导膜粘合到表面上的接合部分。 接合部分设置在多个第一侧面之间并且在多个第一侧面之间并且包括多个第二侧面。 每个第二侧面与导光膜的平面形成大于约70度的角度。 接合部分还包括由多个第二侧面定义并具有小于第一最小尺寸的约10％的第二最小尺寸的第二基部。 接合部分也具有第二最大高度。 第二最大高度与第二最小尺寸的比率至少为约1.5。