PROCESS FOR MAKING AN OPTICAL FILM
    3.
    发明申请
    PROCESS FOR MAKING AN OPTICAL FILM 审中-公开
    制作光学膜的工艺

    公开(公告)号:US20080083999A1

    公开(公告)日:2008-04-10

    申请号:US11539320

    申请日:2006-10-06

    IPC分类号: B29D11/00

    摘要: Exemplary methods include includes providing a film comprising at least one polymeric material; widening the film under a first set of processing conditions in a first draw step along the crossweb direction such that in-plane birefringence, if any, created in the film is low; and drawing the film in a second draw step along a downweb direction, while allowing the film to relax along the crossweb direction, under a second set of processing conditions, wherein the second set of processing conditions creates in-plane birefringence in at least one polymeric material.

    摘要翻译: 示例性的方法包括提供包含至少一种聚合物材料的膜; 在沿着横向横向方向的第一拉伸步骤中的第一组处理条件下使膜变宽,使得在膜中产生的面内双折射(如果有的话)低; 以及在第二组加工条件下沿着横向方向在第二拉伸步骤中拉伸薄膜同时允许薄膜沿着横向横向方向松弛,其中第二组加工条件在至少一个聚合物中产生平面内双折射 材料。

    Hollow backlight with structured films
    4.
    发明授权
    Hollow backlight with structured films 有权
    空心背光与结构薄膜

    公开(公告)号:US08848132B2

    公开(公告)日:2014-09-30

    申请号:US12866094

    申请日:2009-02-06

    IPC分类号: G02F1/1335 F21V7/04

    摘要: A backlight (120) that includes a front reflector (130) and a back reflector (160) that form a hollow light recycling cavity (162) having an output surface (164) is disclosed. The front reflector includes at least four directional recycling films (132). The backlight also includes a semi-specular diffuser disposed between the front reflector and the back reflector, and one or more light sources (166) disposed to emit light into the light recycling cavity.

    摘要翻译: 公开了一种背光(120),其包括形成具有输出表面(164)的中空光循环腔(162)的前反射器(130)和后反射器(160)。 前反射器包括至少四个定向再循环膜(132)。 背光还包括设置在前反射器和后反射器之间的半镜面漫射器,以及设置成将光发射到光再循环腔中的一个或多个光源(166)。

    Hybrid lightguide backlight
    6.
    发明授权
    Hybrid lightguide backlight 失效
    混合光导背光

    公开(公告)号:US07223005B2

    公开(公告)日:2007-05-29

    申请号:US10744661

    申请日:2003-12-23

    IPC分类号: F21V7/00

    摘要: Backlighting systems are disclosed, which include a lightguide with at least one light source optically connected to an edge of the lightguide for supplying light into its interior and a reflective cavity with at least one light source optically connected to the reflective cavity for supplying light into its interior. The reflective cavity may include a first reflector and a second reflector and at least one source may be disposed at an edge of the reflective cavity. Alternatively, the reflective cavity may include a back reflector portion and light sources may be disposed at the back reflector portion.

    摘要翻译: 公开了背光系统,其包括具有至少一个光源的光导,所述至少一个光源光学连接到光导的边缘,用于将光提供到其内部,反射腔具有光学连接到反射腔的至少一个光源,用于将光提供到其中 室内。 反射腔可以包括第一反射器和第二反射器,并且至少一个源可以设置在反射腔的边缘处。 或者,反射腔可以包括后反射器部分,并且光源可以设置在后反射器部分。

    Direct-lit backlight with angle-dependent birefringent diffuser
    7.
    发明授权
    Direct-lit backlight with angle-dependent birefringent diffuser 有权
    带角度的双折射扩散器的直射背光

    公开(公告)号:US08007118B2

    公开(公告)日:2011-08-30

    申请号:US11843178

    申请日:2007-08-22

    IPC分类号: G02B5/30 F21V9/14

    摘要: A direct-lit backlight includes a diffuse reflector disposed in front of a light source. The diffuse reflector has a continuous phase material and a disperse phase material, at least one of which is birefringent, and the disperse phase material is formed into particles having a transverse dimension less than 1 micrometer for efficient visible light scattering. The continuous and disperse phases have refractive indices tailored so the diffuse reflector transmits light from the light source substantially more strongly for obliquely incident light than for normally incident light to provide bulb-hiding characteristics.

    摘要翻译: 直射背光包括设置在光源前面的漫反射器。 漫反射器具有连续相材料和分散相材料,其中至少一种是双折射的,并且分散相材料形成为具有小于1微米的横向尺寸的颗粒,以实现有效的可见光散射。 连续和分散相具有定制的折射率,使得漫反射器对于倾斜入射光基本上比通常入射光更强地透射来自光源的光,以提供灯泡隐藏特性。

    Polarizer constructions and display devices exhibiting unique color effects
    8.
    发明授权
    Polarizer constructions and display devices exhibiting unique color effects 失效
    具有独特色彩效果的偏振器结构和显示设备

    公开(公告)号:US06574044B1

    公开(公告)日:2003-06-03

    申请号:US09426461

    申请日:1999-10-25

    IPC分类号: G02B530

    摘要: A polarizer construction is disclosed that includes a reflective polarizer disposed on a first side of the construction to transmit light having one polarization and reflect light having an orthogonal polarization, and one or more colored dichroic polarizers disposed on a second side of the construction. The one or more colored dichroic polarizers are arranged so that when the construction is illuminated from the first side, an observer viewing the construction from the second side will observe a first spectral distribution of visible light, and when the construction is illuminated from the second side, an observer viewing the construction from the second side will observe a second spectral distribution of visible light different from the first spectral distribution. Various display constructions using colored polarizers to achieve color changing and image reversal effects are also disclosed.

    摘要翻译: 公开了一种偏振器结构,其包括设置在该结构的第一侧上的反射偏振器,用于透射具有一个偏振的光并且反射具有正交偏振的光,以及一个或多个设置在该结构的第二侧上的着色的二向色偏振器。 一个或多个着色的二向色偏振器被布置成使得当从第一侧照射结构时,从第二侧观察构造的观察者将观察到可见光的第一光谱分布,并且当从第二侧照射构造时 从第二侧观察构造的观察者将观察到与第一光谱分布不同的可见光的第二光谱分布。 还公开了使用彩色偏振器实现颜色变化和图像反转效果的各种显示结构。