Systems and methods of providing a light guiding layer

    公开(公告)号:US07619822B2

    公开(公告)日:2009-11-17

    申请号:US11669074

    申请日:2007-01-30

    IPC分类号: G02B5/02 F21V7/04 G02B26/00

    摘要: Various embodiments of the invention include an interferometric optical modulator comprising a substrate layer and a light direction layer. Such an interferometric modulator may be integrated with a diffuser layer in a display device in a way that physically integrates the diffuser layer into the light direction layer in a way where the diff-user layer does not interact with light propagating within the light direction layer. As a result, most of the light propagating within the light direction layer does not penetrate into the diffuser which would inhibit performance of the display. In some embodiments, the interface between the diffuser layer and the light direction layer has a lower index of refraction than the light direction layer and the transparent substrate so that total internal reflection occurs at the interface.

    INTEGRATED FRONT LIGHT SOLUTION
    32.
    发明申请
    INTEGRATED FRONT LIGHT SOLUTION 失效
    集成前灯解决方案

    公开(公告)号:US20090201301A1

    公开(公告)日:2009-08-13

    申请号:US12343279

    申请日:2008-12-23

    摘要: An integrated illumination apparatus includes a light injection portion having a first end for receiving light from a light source. The light injection portion includes material that supports propagation of said light along the length of the light injection portion. Turning microstructure is disposed on a first side of the light injection. The turning microstructure is configured to turn at least a substantial portion of light incident on the first side and to direct the portion of the light out a second opposite side of the light injection portion. A slit is disposed along the length of the light injection portion. The slit forms an optical interface on the second opposite side of the light injection portion that provides total internal reflection for light propagating along the length of the light injection portion to be guided therein. The optical interface further transmits light turned by said turning microstructure. A light distribution portion is disposed with respect to the slit to receive the light turned by said turning microstructure and transmitted out of the second side of the light injection portion and through said slit. At least one bridge is disposed between light injection portion and the light distribution portion. The bridge mechanically connects the light injection portion to the light distribution portion.

    摘要翻译: 集成照明装置包括具有用于接收来自光源的光的第一端的光注入部。 光注入部分包括支持沿着光注入部分的长度传播所述光的材料。 转向微结构设置在光注入的第一侧上。 转向微结构被配置成使入射在第一侧上的至少大部分光转向并将光的一部分引导出光注入部分的第二相对侧。 沿着光注入部分的长度设置狭缝。 狭缝在光注入部分的第二相对侧上形成光学界面,该光学界面为沿着光注入部分的长度传播的光提供全内反射,以在其中被引导。 光学接口还透射由所述转动微结构转动的光。 光分配部分相对于狭缝设置以接收由所述转动微结构转动的光并且透射出光注入部分的第二侧并穿过所述狭缝。 在光注入部分和光分布部分之间设置至少一个桥。 桥将光注入部分机械地连接到配光部分。

    DUAL FILM LIGHT GUIDE FOR ILLUMINATING DISPLAYS
    33.
    发明申请
    DUAL FILM LIGHT GUIDE FOR ILLUMINATING DISPLAYS 有权
    用于照明显示屏的双膜指南

    公开(公告)号:US20080267572A1

    公开(公告)日:2008-10-30

    申请号:US11742299

    申请日:2007-04-30

    IPC分类号: G02B6/10

    摘要: A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements.

    摘要翻译: 提供了包括多个嵌入表面特征的前导光板。 前面板被配置成将来自设置在字体灯面板的一侧的人造光源的均匀照明传送到位于前导光体后面的显示元件的阵列,同时允许从透过光的环境光照射的选择 导板。 表面嵌入式表面浮雕特征在导光板内形成气穴。 入射在光导的侧表面的光通过光导传播,直到其在空气袋上的空气/光材料引导界面上撞击。 然后光通过大的角度的全内反射转动,使得它离开布置在显示元件阵列前面的输出面。

    LIGHT GUIDE WITH DIFFUSIVE LIGHT INPUT INTERFACE
    35.
    发明申请
    LIGHT GUIDE WITH DIFFUSIVE LIGHT INPUT INTERFACE 审中-公开
    具有扩散式光输入界面的光导体

    公开(公告)号:US20120120080A1

    公开(公告)日:2012-05-17

    申请号:US13278411

    申请日:2011-10-21

    IPC分类号: G06F13/14 H05K13/00 F21V8/00

    摘要: This disclosure provides systems, methods and apparatus for providing illumination by using a light guide to distribute light. In one aspect, the light guide has a surface, such as an edge, into which light is injected. The surface is treated to create a diffusive interface with a light source. For example, the surface may be subjected to abrasion to form a frosted surface that acts as the diffusive interface, or a diffusive structure may be attached to the edge, with the attached diffusive structure functioning as the diffusive interface. The diffusive interface diffuses light entering into the light guide, and can thereby increase the uniformity of light propagating within the light guide. The light guide may be provided with light turning features that redirect light out of the light guide. In some implementations, the redirected light may be applied to illuminate a display.

    摘要翻译: 本公开提供了通过使用光导来分配光来提供照明的系统,方法和装置。 在一个方面,导光体具有注入光的表面,例如边缘。 处理表面以产生与光源的扩散界面。 例如,表面可能经受磨损以形成作为扩散界面的磨砂表面,或者扩散结构可以附着到边缘,附着的扩散结构用作扩散界面。 扩散界面扩散进入导光体的光,从而增加在光导内传播的光的均匀性。 光导可以设置有将光从导光体重定向的光转动特征。 在一些实施方案中,可以应用重定向的光来照亮显示器。

    Front light devices and methods of fabrication thereof
    38.
    发明授权
    Front light devices and methods of fabrication thereof 失效
    前灯装置及其制造方法

    公开(公告)号:US08346048B2

    公开(公告)日:2013-01-01

    申请号:US12474245

    申请日:2009-05-28

    IPC分类号: G02B6/10 G02B26/00

    摘要: A illumination device comprises a light guide having a first end for receiving light and configured to support propagation of light along the length of the light guide. A turning microstructure is disposed on a first side of the light guide configured to turn light incident on the first side and to direct the light out a second opposite side of the light guide, wherein the turning microstructure comprises a plurality of indentations. A cover is physically coupled to the light guide and disposed over the turning microstructure. An interlayer is between the cover and the light guide, wherein the interlayer physically couples the cover to the light guide. A plurality of open regions is between the interlayer and the plurality of indentations. Various embodiments include methods of coupling the cover to the light guide while preserving open regions between the cover and plurality of indentations.

    摘要翻译: 照明装置包括光导,其具有用于接收光的第一端并且被配置为支持沿着光导的长度的光的传播。 转向微结构设置在导光体的第一侧上,其被配置为转动入射在第一侧上的光并将光引导出光导的第二相对侧,其中转动微结构包括多个凹陷。 盖子物理耦合到光导并且设置在转向微结构上。 中间层位于盖和光导之间,其中夹层将盖物理耦合到光导。 多个开放区域在中间层和多个凹口之间。 各种实施例包括将盖连接到光导的同时保持盖和多个凹口之间的开放区域的方法。

    Devices and methods for enhancing brightness of displays using angle conversion layers
    39.
    发明授权
    Devices and methods for enhancing brightness of displays using angle conversion layers 失效
    使用角度转换层增强显示器亮度的装置和方法

    公开(公告)号:US08040589B2

    公开(公告)日:2011-10-18

    申请号:US12369630

    申请日:2009-02-11

    IPC分类号: G02B26/00

    摘要: Various embodiments of the present invention relate to enhancing the brightness of displays that employ illumination systems. In some embodiments, the illumination systems include light guides, diffractive microstructure, and light-turning features. The diffractive microstructure may be configured to receive ambient light at a first angle and produce diffracted light at a second angle greater than the first angle and greater than the critical angle for of light guide. The light is thereby guided within the light guide. The light-turning features may be configured to turn the light guided within the light guide out of a light guide and onto, for example, a spatial light modulator at near normal incidence.

    摘要翻译: 本发明的各种实施例涉及增强采用照明系统的显示器的亮度。 在一些实施例中,照明系统包括光导,衍射微结构和光转动特征。 衍射微结构可以被配置为以第一角度接收环境光,并以大于第一角度并大于光导的临界角的第二角度产生衍射光。 因此,光在光导内被引导。 光转向特征可以被配置为将光导管内的光引导出导光体并且以近似垂直入射方式转动到例如空间光调制器。