公开(公告)号：US08068710B2

公开(公告)日：2011-11-29

申请号：US11952941

申请日：2007-12-07

申请人： Ion Bita ,  Gang Xu ,  Lai Wang ,  Marek Mienko ,  Russell Wayne Gruhlke

发明人： Ion Bita ,  Gang Xu ,  Lai Wang ,  Marek Mienko ,  Russell Wayne Gruhlke

IPC分类号： G02B6/00 ,  G02F1/1335 ,  G02F1/1333 ,  G02B5/32

CPC分类号： G02B6/10 ,  G02B5/32 ,  G02B6/0035 ,  G02B6/0051 ,  G02B26/001 ,  Y10T29/49826

摘要： In various embodiments described herein, a display device includes a front illumination device that comprises a light guide disposed forward of an array of display elements, such as an array of interferometric modulators, to distribute light across the array of display elements. The light guide may include a turning film to deliver uniform illumination from a light source to the array of display elements. For many portable display applications, the light guide comprises the substrate used in fabricating the display elements. The display device may include additional films as well. The light guide, for example, may include a diffuser and/or an optical isolation layer to further enhance the optical characteristics of the display.

摘要翻译： 在本文描述的各种实施例中，显示装置包括前照明装置，其包括布置在诸如干涉式调制器阵列之类的显示元件阵列之前的光导，以将光分布在显示元件阵列上。 光导可以包括转向膜，以将来自光源的均匀照明传送到显示元件阵列。 对于许多便携式显示器应用，光导包括用于制造显示元件的基板。 显示装置也可以包括附加的膜。 例如，光导可以包括扩散器和/或光隔离层，以进一步增强显示器的光学特性。

公开(公告)号：US08040589B2

公开(公告)日：2011-10-18

申请号：US12369630

申请日：2009-02-11

申请人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

发明人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

IPC分类号： G02B26/00

CPC分类号： G02B6/0053 ,  G02B6/0018 ,  G02B6/0038 ,  G02B26/001

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。

公开(公告)号：US20090201565A1

公开(公告)日：2009-08-13

申请号：US12369630

申请日：2009-02-11

申请人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

发明人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

IPC分类号： G02B26/02 ,  G02B27/44

CPC分类号： G02B6/0053 ,  G02B6/0018 ,  G02B6/0038 ,  G02B26/001

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。

公开(公告)号：US08654061B2

公开(公告)日：2014-02-18

申请号：US12343279

申请日：2008-12-23

申请人： Marek Mienko ,  Gang Xu ,  Ion Bita ,  Lai Wang ,  Russell W. Gruhlke

发明人： Marek Mienko ,  Gang Xu ,  Ion Bita ,  Lai Wang ,  Russell W. Gruhlke

IPC分类号： G09G3/36

CPC分类号： G02B6/0018 ,  G02B6/0011 ,  G02B6/0016 ,  G02B6/002 ,  G02B6/0028 ,  G09G3/3466

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。 光学接口进一步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。

公开(公告)号：US20120026576A1

公开(公告)日：2012-02-02

申请号：US13271581

申请日：2011-10-12

申请人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

发明人： Ion Bita ,  Gang Xu ,  Marek Mienko ,  Lai Wang ,  Russell W. Gruhlke

IPC分类号： G02B26/02 ,  G02B27/44

CPC分类号： G02B6/0053 ,  G02B6/0018 ,  G02B6/0038 ,  G02B26/001

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。

公开(公告)号：US20090303746A1

公开(公告)日：2009-12-10

申请号：US12478519

申请日：2009-06-04

申请人： Lai Wang ,  Gang Xu ,  Ion Bita ,  Marek Mienko ,  Russell Gruhlke

发明人： Lai Wang ,  Gang Xu ,  Ion Bita ,  Marek Mienko ,  Russell Gruhlke

IPC分类号： F21V8/00 ,  F21V7/04

CPC分类号： G02B6/0036 ,  G02B6/0028 ,  G02B6/0038 ,  G02B6/0073

摘要： Embodiments herein relate to light systems designed to reduce Moiré interference while simultaneously reducing dark regions due to the edge shadow effect. For example, configurations of light sources, light guides and turning features may direct light across a display while reducing Moiré interference.

摘要翻译： 本文中的实施例涉及被设计为减少莫尔干扰同时由于边缘阴影效应而减少暗区的光系统。 例如，光源，光导和车削特征的配置可以在显示器上引导光，同时减少莫尔干扰。

公开(公告)号：US20090201301A1

公开(公告)日：2009-08-13

申请号：US12343279

申请日：2008-12-23

申请人： Mark Mienko ,  Gang Xu ,  Ion Bita ,  Lai Wang ,  Russell W. Gruhlke

发明人： Mark Mienko ,  Gang Xu ,  Ion Bita ,  Lai Wang ,  Russell W. Gruhlke

IPC分类号： G06T1/00 ,  F21V99/00 ,  F21V7/00 ,  F21K7/00

CPC分类号： G02B6/0018 ,  G02B6/0011 ,  G02B6/0016 ,  G02B6/002 ,  G02B6/0028 ,  G09G3/3466

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。

公开(公告)号：US09019240B2

公开(公告)日：2015-04-28

申请号：US13307353

申请日：2011-11-30

申请人： Russell Wayne Gruhlke ,  Ye Yin ,  Lai Wang ,  David William Burns

发明人： Russell Wayne Gruhlke ,  Ye Yin ,  Lai Wang ,  David William Burns

IPC分类号： G06F3/042 ,  G02F1/1333 ,  G02B26/00 ,  G02B26/08 ,  F21V8/00

CPC分类号： G06F3/0421 ,  G02B6/0011 ,  G02B6/0053 ,  G02B26/001 ,  G02B26/08 ,  G02F1/13338 ,  G06F3/0428

摘要： This disclosure provides systems, methods and apparatus for a touch screens configured to determine a position of a touch event by selectively redirecting light to correlated locations on a light sensor. In one aspect, the touch screen apparatus can include a light guide forming a touch interface, a light source for injecting light into the light guide, a light sensor for detecting the injected light, and a pixilated light-turning layer. The pixilated light-turning layer can include a plurality of light-turning features forming pixels. The pixels can receive incident light corresponding to the emitted light scattered by an object contacting the light guide. The pixels can redirect the incident scattered light towards the light sensor such that light selectively propagates to one or more correlated light receiving locations. A processor can map the light receiving location to an area contacted by the object, thereby determining a position of a touch event.

摘要翻译： 本公开提供了用于触摸屏的系统，方法和装置，其被配置为通过选择性地将光重定向到光传感器上的相关位置来确定触摸事件的位置。 一方面，触摸屏装置可以包括形成触摸界面的光导，用于将光注入到光导中的光源，用于检测注入的光的光传感器和像素化的光转向层。 像素化的光转向层可以包括形成像素的多个光转向特征。 像素可以接收对应于由与光导相接触的物体散射的发射光的入射光。 像素可以将入射的散射光重定向到光传感器，使得光选择性地传播到一个或多个相关的光接收位置。 处理器可以将光接收位置映射到由对象接触的区域，从而确定触摸事件的位置。

公开(公告)号：US20130082980A1

公开(公告)日：2013-04-04

申请号：US13307353

申请日：2011-11-30

申请人： Russell Wayne Gruhlke ,  Ye Yin ,  Lai Wang ,  David William Burns

发明人： Russell Wayne Gruhlke ,  Ye Yin ,  Lai Wang ,  David William Burns

IPC分类号： G06F3/042

CPC分类号： G06F3/0421 ,  G02B6/0011 ,  G02B6/0053 ,  G02B26/001 ,  G02B26/08 ,  G02F1/13338 ,  G06F3/0428

摘要： This disclosure provides systems, methods and apparatus for a touch screens configured to determine a position of a touch event by selectively redirecting light to correlated locations on a light sensor. In one aspect, the touch screen apparatus can include a light guide forming a touch interface, a light source for injecting light into the light guide, a light sensor for detecting the injected light, and a pixilated light-turning layer. The pixilated light-turning layer can include a plurality of light-turning features forming pixels. The pixels can receive incident light corresponding to the emitted light scattered by an object contacting the light guide. The pixels can redirect the incident scattered light towards the light sensor such that light selectively propagates to one or more correlated light receiving locations. A processor can map the light receiving location to an area contacted by the object, thereby determining a position of a touch event.

公开(公告)号：US20120236390A1

公开(公告)日：2012-09-20

申请号：US13298065

申请日：2011-11-16

申请人： Lai Wang ,  Marek Mienko ,  Ion Bita

发明人： Lai Wang ,  Marek Mienko ,  Ion Bita

IPC分类号： G02B26/00 ,  G05B15/00 ,  F21V8/00

CPC分类号： G02B26/001

摘要： This disclosure provides systems, methods and apparatus for providing illumination by using a light guide to distribute light and for determining spacing between light turning features in the light guide. In one aspect, a light intensity profile along a first axis is determined and the pitch of light turning features along that first axis is varied based upon this profile, while the pitch along a second crossing axis (for example, an orthogonal axis) and the sizes of the light turning features remain unchanged. In some implementations, an apparatus includes a light guide having an array of light turning features configured to turn light from at least one light emitter. The light turning features can be non-uniformly spaced apart along a first axis such that pitches vary non-monotonically and, along a second axis that crosses the first axis, the light turning features are spaced apart with substantially the same progression.

摘要翻译： 本公开提供了通过使用光导来分配光并且用于确定光导中的光转向特征之间的间距来提供照明的系统，方法和装置。 在一个方面，确定沿着第一轴的光强度分布，并且沿着该第一轴线的光转动特征的间距基于该轮廓而变化，而沿着第二交叉轴线（例如，正交轴线）的俯仰和 光转动特征的大小保持不变。 在一些实施方式中，一种装置包括具有配置成从至少一个光发射器转动光的光转向特征阵列的光导。 光转动特征可以沿着第一轴线不均匀间隔开，使得间距非单调变化，并且沿着与第一轴线交叉的第二轴线，光转动特征以基本上相同的进展间隔开。