Multilayer optical films having side-by-side polarizer/polarizer zones
    12.
    发明授权
    Multilayer optical films having side-by-side polarizer/polarizer zones 有权
    具有并排偏振器/偏振器区域的多层光学膜

    公开(公告)号:US09291757B2

    公开(公告)日:2016-03-22

    申请号:US13139866

    申请日:2009-12-22

    摘要: A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. In the first zone the layers provide a first reflective polarizer characteristic, and in a second zone the layers provide a substantially different reflective polarizer characteristic. The second zone is characterized by at least some of the layers having a reduced birefringence relative to their birefringence in the first zone. In some cases the first reflective polarizer characteristic may have a pass axis that is substantially orthogonal to that of the second reflective polarizer characteristic. The film may have substantially the same thickness in the first and second zones, or a substantially reduced thickness in the second zone relative to the first zone.

    摘要翻译: 反射膜包括通过结构性或相消干涉选择性地反射光的内层,层从膜的第一区延伸到第二区。 在第一区域中,这些层提供第一反射偏振器特性,并且在第二区域中,这些层提供基本不同的反射偏振器特性。 第二区的特征在于至少一些层相对于第一区中的双折射具有降低的双折射。 在一些情况下,第一反射偏振器特性可以具有与第二反射偏振器特性基本正交的通过轴。 膜可以在第一和第二区域中具有基本上相同的厚度,或者在第二区域中相对于第一区域具有基本上减小的厚度。

    Multi-layer articles capable of forming color images and methods of forming color images
    14.
    发明授权
    Multi-layer articles capable of forming color images and methods of forming color images 有权
    能够形成彩色图像的多层制品和形成彩色图像的方法

    公开(公告)号:US08975012B2

    公开(公告)日:2015-03-10

    申请号:US13805928

    申请日:2011-06-30

    摘要: Multi-layer articles are described that are capable of forming color images. The articles include at least six layers, four thermally activatable layers (layers 1-4) and two blocking layers (layer 5 and 6). The layers are arranged such that layer 5 is disposed between layers 1 and 2 and layer 6 is disposed between layers 3 and 4. Thermally activatable layers 1 and 2 are activatable upon exposure to light of a first write wavelength, and blocking layer 5 is adapted to at least partially block light of the first write wavelength. Thermally activatable layers 3 and 4 are activatable upon exposure to light of a second write wavelength, and blocking layer 6 is adapted to at least partially block light of the second write wavelength. At least one, and possibly all of the thermally activatable layers include a light to heat convertor composition and a color changing compound. Some of the thermally activatable layers may be a group of layers arranged to selectively reflect light by constructive or destructive interference to provide a first reflective characteristic, the group of layers also having a first absorption characteristic suitable to, upon exposure to light comprising a write wavelength, absorptively heat the first group of layers by an amount sufficient to change the first reflective characteristic to a second reflective characteristic while maintaining the structural integrity of the group of layers.

    摘要翻译: 描述能够形成彩色图像的多层制品。 制品包括至少六层,四层热活化层(层1-4)和两层阻挡层(层5和层6)。 这些层被布置成使得层5设置在层1和2之间,层6设置在层3和4之间。可热激活层1和2可以在暴露于第一写入波长的光时被激活,并且阻挡层5被适配 以至少部分地阻挡第一写入波长的光。 可热激活层3和4在暴露于第二写入波长的光时可激活,并且阻挡层6适于至少部分地阻挡第二写入波长的光。 至少一个,并且可能全部的可热激活层包括光至热转化器组合物和变色化合物。 一些可热激活的层可以是一组层,其布置成通过结构性或相消干涉选择性地反射光以提供第一反射特性,所述一组层还具有适于在暴露于包含写入波长的光的第一吸收特性 吸收地将第一组层吸收足以将第一反射特性改变到第二反射特性的量,同时保持该组层的结构完整性。

    Internally patterned multilayer optical films using spatially selective birefringence reduction
    15.
    发明授权
    Internally patterned multilayer optical films using spatially selective birefringence reduction 有权
    使用空间选择性双折射降低的内部图案化多层光学膜

    公开(公告)号:US08879151B2

    公开(公告)日:2014-11-04

    申请号:US13139826

    申请日:2009-12-22

    IPC分类号: G02B5/30

    摘要: A reflective film includes interior layers arranged to selectively reflect light by constructive or destructive interference, the layers extending from a first zone to a second zone of the film. The film has a first thickness and the interior layers provide a first reflective characteristic in the first zone; the film has a second thickness and the interior layers provide a second reflective characteristic in the second zone. The difference between the first and second reflective characteristics is not substantially attributable to any difference between the first and second thicknesses, which difference may be zero. Rather, the difference in the reflective characteristics is substantially attributable to reduced birefringence of at least some of the interior layers in one zone relative to the other zone. The film may also incorporate absorbing agents to assist in the manufacture or processing of the film. Related methods and articles are also disclosed.

    摘要翻译: 反射膜包括布置成通过结构性或相消干涉选择性地反射光的内层,所述层从膜的第一区延伸到第二区。 该膜具有第一厚度,并且内部层在第一区域中提供第一反射特性; 该膜具有第二厚度,并且内部层在第二区域中提供第二反射特性。 第一和第二反射特性之间的差异基本上不能归因于第一和第二厚度之间的任何差异,该差值可以为零。 相反,反射特性的差异基本上归因于在一个区域中的至少一些内层相对于另一区域的双折射率的降低。 该薄膜还可以包含吸收剂以协助制造或加工薄膜。 还公开了相关的方法和文章。

    RETARDER FILM COMBINATIONS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION
    16.
    发明申请
    RETARDER FILM COMBINATIONS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION 有权
    延迟电影与空间选择性减少组合

    公开(公告)号:US20130094085A1

    公开(公告)日:2013-04-18

    申请号:US13703556

    申请日:2011-06-29

    IPC分类号: G02B5/30

    摘要: Retarder film combinations generally include a retarder film connected to another optical component such that light transmitted by the retarder film can impinge on the optical component, the combination being configured to allow independent patterning of the retarder film and the optical component by selective birefringence reduction. The patterning can change a first light retardation to a third light retardation in a first zone without substantially changing optical characteristics of the optical component in the first zone. The optical component may be a second retarder film having a second light retardation, and the patterning may change the second light retardation to a fourth light retardation, without substantially changing the first light retardation, in a second zone. The optical component may also be a multilayer optical film, or a diffusely reflective optical film having a blended layer of first and second distinct phases.

    摘要翻译: 延迟膜组合通常包括连接到另一光学部件的延迟膜,使得由延迟膜所透射的光可以撞击在光学部件上,该组合被配置为允许通过选择性双折射降低对延迟片和光学部件的独立图案化。 图案化可以将第一区域中的第一光延迟改变为第三光阻,而不会实质地改变第一区中的光学部件的光学特性。 光学部件可以是具有第二光延迟的第二延迟膜,并且在第二区域中,图案化可以将第二光延迟改变为第四光延迟而基本上不改变第一光延迟。 光学部件也可以是具有第一和第二不同相的共混层的多层光学膜或漫反射型光学膜。

    MULTILAYER OPTICAL FILMS HAVING SIDE-BY-SIDE POLARIZER/POLARIZER ZONES
    17.
    发明申请
    MULTILAYER OPTICAL FILMS HAVING SIDE-BY-SIDE POLARIZER/POLARIZER ZONES 有权
    具有侧面偏振器/极化区域的多层光学膜

    公开(公告)号:US20110286095A1

    公开(公告)日:2011-11-24

    申请号:US13139866

    申请日:2009-12-22

    IPC分类号: G02B5/30

    摘要: A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. In the first zone the layers provide a first reflective polarizer characteristic, and in a second zone the layers provide a substantially different reflective polarizer characteristic. The second zone is characterized by at least some of the layers having a reduced birefringence relative to their birefringence in the first zone. In some cases the first reflective polarizer characteristic may have a pass axis that is substantially orthogonal to that of the second reflective polarizer characteristic. The film may have substantially the same thickness in the first and second zones, or a substantially reduced thickness in the second zone relative to the first zone.

    摘要翻译: 反射膜包括通过结构性或相消干涉选择性地反射光的内层,层从膜的第一区延伸到第二区。 在第一区域中,这些层提供第一反射偏振器特性,并且在第二区域中,这些层提供基本不同的反射偏振器特性。 第二区的特征在于至少一些层相对于第一区中的双折射具有降低的双折射。 在一些情况下,第一反射偏振器特性可以具有与第二反射偏振器特性基本正交的通过轴。 膜可以在第一和第二区域中具有基本上相同的厚度,或者在第二区域中相对于第一区域具有基本上减小的厚度。

    Processes and apparatus for making transversely drawn films with substantially uniaxial character
    18.
    发明授权
    Processes and apparatus for making transversely drawn films with substantially uniaxial character 有权
    制造具有基本单轴性能的横向拉伸薄膜的方法和设备

    公开(公告)号:US07740470B2

    公开(公告)日:2010-06-22

    申请号:US11624374

    申请日:2007-01-18

    IPC分类号: B29C55/08

    摘要: A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR−1)/(TDDR1/2−1), wherein TDDR is greater than 4 at an end of the stretching region.

    摘要翻译: 用于基本上单轴定向的拉伸机包括多个夹持构件,用于保持膜的相对边缘部分,夹持构件沿着该路径沿拉伸区域延伸膜的路径,以及用于输送膜和夹持构件的驱动机构 沿着机器方向。 拉伸区域中的路径的至少一部分限定了设置在平面内的发散的曲线。 这些路径被配置为使得在拉伸过程中,U轴在零和单位之间的范围内,并且在实现TDDR之后在拉伸的最后部分中单轴性质U的最小值至少为0.70 的2.5。 U被定义为U =(1 / MDDR-1)/(TDDR1 / 2-1),其中在拉伸区域的末端TDDR大于4。

    Multilayer optical films suitable for bi-level internal patterning
    19.
    发明授权
    Multilayer optical films suitable for bi-level internal patterning 有权
    适用于双层内部图案化的多层光学膜

    公开(公告)号:US09019607B2

    公开(公告)日:2015-04-28

    申请号:US13139848

    申请日:2009-12-22

    IPC分类号: G02B5/30 G02B5/08

    摘要: A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.

    摘要翻译: 反射膜包括提供第一反射特性的第一光学堆叠和提供第二反射特性的第二光学堆叠。 光学堆叠还具有第一和第二吸收特性,其适于在暴露于包括写入波长的光的同时吸收加热各个堆叠,同时保持堆叠的结构完整性。 吸收加热可以将第一和第二反射特性分别改变为第三和第四反射特性。 还可以在光学堆叠之间提供至少部分地阻挡写入波长的光的阻挡层,以允许任何所选择的光学叠层的吸收加热。 因此,可以通过包括写入波长的光束的适当传递,以任何期望的图案独立地修改光学堆叠的反射特性。

    Effective Media Retarder Films with Spatially Selective Birefringence Reduction
    20.
    发明申请
    Effective Media Retarder Films with Spatially Selective Birefringence Reduction 有权
    具有空间选择性双折射降低的有效介质阻滞膜

    公开(公告)号:US20130170034A1

    公开(公告)日:2013-07-04

    申请号:US13342807

    申请日:2012-01-03

    IPC分类号: G02B5/30 B32B38/00 G02B1/12

    摘要: A retarder film provides a first light retardation and can be heat processed in one or more selected areas to provide a second light retardation in the selected area(s). The retarder film may have an absorption characteristic such that the heat processing can be carried out by selectively exposing the film to a suitable radiant beam. The retarder film is composed of a stack of contiguous ultrathin layers configured to provide an effective optical medium for visible light. Visible light propagates through the stack as an effective medium having effective refractive indices along principal x-, y-, and z-axes. At least some of the ultrathin layers possess intrinsic birefringence, and the effective indices of the stack are functions of the intrinsic refractive indices of the constituent ultrathin layers. The heat processing is carried out so that the ultrathin layer stack structural integrity is not substantially altered in the processed area(s).

    摘要翻译: 延迟膜提供第一光延迟并且可以在一个或多个选定区域中进行热处理以在所选择的区域中提供第二光延迟。 延迟膜可以具有吸收特性,使得可以通过将膜选择性地暴露于合适的辐射束来进行热处理。 延迟膜由连续的超薄层的叠层组成,其被配置为提供可见光的有效光学介质。 可见光通过堆叠传播,作为沿着主要x轴,y轴和z轴具有有效折射率的有效介质。 至少一些超薄层具有固有的双折射,并且叠层的有效折射率是组成超薄层的固有折射率的函数。 进行热处理,使得超薄层堆叠结构完整性在经处理的区域中基本上不改变。