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    HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS
    13.
    发明申请
    HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS 审中-公开
    高传输通量水平多层光学膜和相关构造

    公开(公告)号：US20110222263A1

    公开(公告)日：2011-09-15

    申请号：US13129468

    申请日：2009-11-17

    申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Stephen A. Johnson ,  Yufeng Liu ,  David T. Yust

    发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Stephen A. Johnson ,  Yufeng Liu ,  David T. Yust

    IPC分类号： F21V9/14 ,  G02B5/30

    CPC分类号： G02B5/305 ,  B32B3/08 ,  B32B7/02 ,  B32B27/08 ,  B32B27/302 ,  B32B27/32 ,  B32B2250/24 ,  B32B2307/412 ,  B32B2307/416 ,  B32B2307/418 ,  B32B2307/514 ,  B32B2307/518 ,  B32B2307/52 ,  B32B2307/5825 ,  B32B2307/584 ,  B32B2551/00 ,  G02F2001/133507

    摘要： A reflective film includes microlayers arranged into optical repeat units, each optical repeat unit including a negatively birefringent microlayer. The microlayers are tailored to provide the film with on-axis polarizing properties, such that normally incident light polarized along a block axis is substantially reflected and normally incident light polarized along a pass axis is substantially transmitted. On-axis transmission for the block axis may be 70%. The microlayers also provide the film with angularly dependent polarizing properties: p-polarized light incident in a block plane of incidence is substantially reflected at near-normal angles but substantially transmitted at an oblique angle. The film transmits unpolarized light incident in this plane more strongly at the oblique angle than at normal. The films can be used in direct-lit backlights, luminaires, and similar lighting systems for flux leveling to promote spatial brightness uniformity.

    摘要翻译： 反射膜包括布置成光学重复单元的微层，每个光学重复单元包括负双折射微层。 微层被定制以提供具有轴上偏振特性的膜，使得沿着块轴偏振的正常入射光被基本反射，并且通常沿着通过轴偏振的入射光基本上被透射。 块轴的轴向传动可能<20％，而传动轴的轴上传动可能> 70％。 微层还为膜提供具有角度依赖的偏振性质：入射在块平面中的p偏振光基本上在近似的角度反射，但基本上以倾斜角传播。 该膜以比正常情况下更倾斜地倾斜入射在该平面中的非偏振光。 这些胶片可用于直射式背光源，灯具和类似的照射系统，用于助焊剂流平，以促进空间亮度均匀性。

    Hybrid polarizer
    14.
    发明授权
    Hybrid polarizer 有权
    混合偏振器

    公开(公告)号：US07826009B2

    公开(公告)日：2010-11-02

    申请号：US11614494

    申请日：2006-12-21

    申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    IPC分类号： G02F1/1335 ,  G02B5/30

    CPC分类号： G02B5/3041 ,  G02B5/3083 ,  G02B27/281 ,  G02F1/133536 ,  G02F2001/133545

    摘要： A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

    摘要翻译： 混合偏振器包括具有第一主表面和第二主表面的吸收元件。 混合偏振器还包括设置在吸收元件的第一主表面上的第一双折射反射偏振器，第一双折射反射偏振器具有第一通过轴和第一块轴。 混合偏振器还包括设置在吸收元件的第二主表面上的第二双折射反射偏振器，第二反射偏振器具有第二通过轴和第二块轴。

    Display including reflective polarizer
    16.
    发明授权
    Display including reflective polarizer 有权
    显示器包括反射偏振器

    公开(公告)号：US07791687B2

    公开(公告)日：2010-09-07

    申请号：US11614409

    申请日：2006-12-21

    申请人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    发明人： Michael F. Weber ,  Timothy J. Nevitt ,  Roger J. Strharsky

    IPC分类号： G02F1/1335

    CPC分类号： G02F1/133536 ,  G02B5/305 ,  G02F2001/133545

    摘要： A display device includes a display panel and a biaxial reflective polarizer having a plurality of layers characterized by a varying optical thickness. A majority of the layers of the biaxial reflective polarizer having a smaller optical thickness are disposed closer to the display panel than the layers having a larger optical thickness.

    摘要翻译： 显示装置包括显示面板和双轴反射偏振器，其具有由变化的光学厚度表征的多个层。 具有较小光学厚度的双轴反射型偏振片的大多数层比具有较大光学厚度的层更靠近显示面板。

    LAMP-HIDING ASSEMBLY FOR A DIRECT LIT BACKLIGHT
    17.
    发明申请
    LAMP-HIDING ASSEMBLY FOR A DIRECT LIT BACKLIGHT 审中-公开
    LAMP-HIDING ASSEMBLY FOR DIRIT LIT BACKLIGHT

    公开(公告)号：US20100214762A1

    公开(公告)日：2010-08-26

    申请号：US12600934

    申请日：2008-04-15

    申请人： Timothy J. Nevitt ,  Michael F. Weber

    发明人： Timothy J. Nevitt ,  Michael F. Weber

    IPC分类号： F21V13/08 ,  F21V7/00 ,  G09F13/04 ,  G02B27/28

    CPC分类号： G02F1/133605 ,  G02F1/133604

    摘要： The present invention is applicable to optical assemblies for use with direct-lit backlights that exhibit a lower transmission for light of normal incidence as compared to the transmission of light at higher angles of incidence, to accomplish a leveling effect of the light across the display. In one embodiment, an optical assembly includes a reflector having an internal Brewster angle and a reflective polarizer having orthogonal reflection and transmission axes. In another embodiment, a direct lit backlight assembly includes one or more lamps, a reflector having an internal Brewster angle, where a major surface of the reflector is facing at least one of the one or more lamps, and a light redirecting layer.

    摘要翻译： 本发明可应用于与在较高入射角度的光的透射相比呈现较低透光率的直射照明背光的光学组件，以实现光穿过显示器的调平效果。 在一个实施例中，光学组件包括具有内部布鲁斯特角的反射器和具有正交反射和透射轴的反射偏振器。 在另一个实施例中，直接照明背光组件包括一个或多个灯，具有内部布鲁斯特角的反射器，其中反射器的主表面面向一个或多个灯中的至少一个以及光重定向层。

    THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS
    18.
    发明申请
    THIN HOLLOW BACKLIGHTS WITH BENEFICIAL DESIGN CHARACTERISTICS 有权
    具有优点设计特性的中空背光

    公开(公告)号：US20100156953A1

    公开(公告)日：2010-06-24

    申请号：US12600862

    申请日：2008-05-19

    申请人： Timothy J. Nevitt ,  Timothy J. Hebrink ,  Michael F. Weber ,  Rolf W. Biernath ,  David G. Freier ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Charles D. Hoyle ,  Kristopher J. Derks

    发明人： Timothy J. Nevitt ,  Timothy J. Hebrink ,  Michael F. Weber ,  Rolf W. Biernath ,  David G. Freier ,  John A. Wheatley ,  Andrew J. Ouderkirk ,  Charles D. Hoyle ,  Kristopher J. Derks

    IPC分类号： G09G5/10

    CPC分类号： F21V7/04 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0068 ,  G02B6/0096 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/13362

    摘要： A backlight unit (10) has a hollow cavity (16) instead of employing a light guide. One or more light sources (24a-c), such as LEDs, are arranged to emit light into the cavity, which is formed by a front (12) and a back reflector (14). The backlight is typically of the edge-lit type. The backlight can have a large area, is thin and consists of fewer components than conventional devices. Its design permits light recycling. The unit emits light of a predefined polarisation and can be arranged to have desired horizontal/vertical viewing angle properties. Light is uniformly distributed within the guide and the light output (20b, 2Od) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range 0.0001 to 0.1; and second, the ratio of the SEP to the height of the cavity (H) should be in the range 3 to 10, where the SEP is an average plan view source separation, a special measure of the average spacing of light sources in the plane of the unit. There is also a discussion on the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. A required minimum brightness uniformity (VESA) value to be maintained, when a subset of Madjacent sources is switched off (where M is at least 0.1 N or M>2 or both), is also disclosed. The backlight can be used for a display or for general lighting purposes.

    摘要翻译： 背光单元（10）具有中空腔（16）而不是使用光导。 布置一个或多个光源（24a-c），诸如LED，以将光发射到由前部（12）和后部反射器（14）形成的空腔中。 背光通常是边缘照明型。 背光源可以具有较大的面积，较薄并且由比传统设备更少的组件组成。 其设计允许光回收。 该单元发射预定极化的光，并且可以被布置成具有期望的水平/垂直视角特性。 光均匀分布在引导件内，并且光输出（20b，20d）基本准直。 这样的背光灯占据由两个参数定义的参数空间中的特定区域：首先，输出排放面积与总排放源面积的比值应在0.0001到0.1的范围内; 第二，SEP与空腔高度的比值（H）应在3到10的范围内，其中SEP是平均平面视图源分离，平面中光源的平均间距的特殊测量 的单位。 还有关于所需数量的光源N的讨论，它们在空腔的周边附近的布置以及输出发射区域的形状和尺寸。 还公开了当Madjacent源的子集（其中M为至少0.1N或M> 2或两者）时要维持的所需的最小亮度均匀性（VESA）值。 背光可用于显示器或用于一般照明目的。