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公开(公告)号：US20090251752A1
公开(公告)日：2009-10-08
申请号：US12419263
申请日：2009-04-06
申请人： Russell Wayne Gruhlke , Ion Bita , Marek Mienko , Gang Xu
发明人： Russell Wayne Gruhlke , Ion Bita , Marek Mienko , Gang Xu
IPC分类号： G02B5/32
CPC分类号： G02B6/0035 , G02B6/0061 , G03H2001/0419 , G03H2001/2228
摘要： Light modulator displays may be illuminated using a light guide comprising diffractive optics that directs light onto the light modulators. The light guide may comprise, for example, a holographic light turning element that turns light propagating within the light guide onto the array of light modulators. In some embodiments, the holographic element has multiple holographic functions. For example, the holographic element may additionally collimate ambient light or diffuse light reflected form the light modulators.
摘要翻译： 光调制器显示器可以使用包括将光引导到光调制器上的衍射光学器件的光导照射。 光导可以包括例如将光导内的光传播到光调制器阵列上的全息光转向元件。 在一些实施例中，全息元件具有多个全息功能。 例如，全息元件可另外校准环境光或从光调制器反射的漫射光。
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22.发明申请公开(公告)号：US20090147535A1
公开(公告)日：2009-06-11
申请号：US11952872
申请日：2007-12-07
CPC分类号： G02B6/0028 , G02B6/0031 , G02B6/0038 , G02B6/0076 , G02B17/023 , G02B26/001 , Y10T29/49002 , Y10T29/49826
摘要： In various embodiments described herein, a display device includes a front illumination apparatus that comprises a first 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 panel is edge illuminated by a light source positioned behind the array display elements. The light from such a light source is coupled to a second light guide disposed behind the array of display elements and positioned laterally with respect to the light source. The light in the second light guide is coupled into the first light guide using a small optical coupling element such as a turning mirror. In some embodiments the second light guide may comprise the backplate of the display device.
摘要翻译： 在本文描述的各种实施例中，显示设备包括前照明设备，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第一光导，以将光分布在显示元件阵列上。 导光板由定位在阵列显示元件后面的光源照射。 来自这种光源的光耦合到布置在显示元件阵列后面并相对于光源横向定位的第二光导。 使用诸如转向镜的小型光学耦合元件将第二光导中的光耦合到第一光导中。 在一些实施例中，第二光导可以包括显示装置的背板。
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公开(公告)号：US08872085B2
公开(公告)日：2014-10-28
申请号：US12444138
申请日：2007-09-26
申请人： Russell Wayne Gruhlke , Brian James Gally , Marek Mienko , Ion Bita , Gang Xu
发明人： Russell Wayne Gruhlke , Brian James Gally , Marek Mienko , Ion Bita , Gang Xu
CPC分类号： G02B6/0051 , G02B6/0053 , G02B26/001
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 panel may include a turning layer to deliver uniform illumination from a light source to the array of display elements. For many portable display applications, the light guide panel comprises the substrate used in fabricating the display elements. The light guide panel may include additional films as well. The light guide panel, for example, may include a diffuser and/or an optical isolation layer to further enhance the optical imaging 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。 导光板可以包括转向层，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，导光板包括用于制造显示元件的基板。 导光板也可以包括另外的膜。 例如，导光板可以包括扩散器和/或光隔离层，以进一步增强显示器的光学成像特性。
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公开(公告)号：US20130106918A1
公开(公告)日：2013-05-02
申请号：US13287426
申请日：2011-11-02
申请人： Ion Bita , Gang Xu , Marek Mienko , Russell Wayne Gruhlke
发明人： Ion Bita , Gang Xu , Marek Mienko , Russell Wayne Gruhlke
CPC分类号： G02B6/005 , G02B6/0035
摘要： This disclosure provides systems, methods, and apparatus for providing illumination using a light-turning stack having diffractive light-turning features to eject light out of the light-turning stack. In one aspect, light ejected from the light-turning stack may be applied to illuminate a display. The light-turning stack includes a light-guiding layer having a surface on which the diffractive light-turning features are disposed. A planarization layer having a refractive index different than a refractive index of the light-guiding layer directly contacts the diffractive light-turning features and has a planar surface opposite the light-turning features. The light-guiding layer can also have a planar surface opposite the light-turning features. Both these planar surfaces, on opposite sides of the light turning stack, facilitate the integration of the light-guiding layer with other layers of material, including functional layers.
摘要翻译： 本公开提供了使用具有衍射光转向特征以将光从光转向叠层中射出的光转向叠层提供照明的系统，方法和装置。 在一个方面，可以施加从光转向叠层排出的光以照亮显示器。 光转向叠层包括具有设置有衍射光转向特征的表面的导光层。 具有与导光层的折射率不同的折射率的平坦化层直接接触衍射光转向特征，并且具有与光转向特征相反的平面。 导光层还可以具有与光转向特征相对的平面。 在光转向叠层的相对侧上的这两个平坦表面都有助于导光层与包括功能层的其它材料层的整合。
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公开(公告)号：US20120120080A1
公开(公告)日：2012-05-17
申请号：US13278411
申请日：2011-10-21
申请人： Lai Wang , Douglas Carl Burstedt , Kollengode S. Narayanan , Kebin Li , Ion Bita , Marek Mienko , Russell Wayne Gruhlke
发明人： Lai Wang , Douglas Carl Burstedt , Kollengode S. Narayanan , Kebin Li , Ion Bita , Marek Mienko , Russell Wayne Gruhlke
CPC分类号： G02B6/0015 , G02B6/0025 , G02B6/0038 , G02B6/0068 , G02B6/0073 , G02B6/3522 , G02B26/001 , G09G3/3466
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。
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公开(公告)号：US08061882B2
公开(公告)日：2011-11-22
申请号：US12416886
申请日：2009-04-01
申请人： Ion Bita , Marek Mienko , Gang Xu , Russell W. Gruhlke
发明人： Ion Bita , Marek Mienko , Gang Xu , Russell W. Gruhlke
IPC分类号： F21V7/04
CPC分类号： G02B6/0028 , B82Y20/00 , G02B6/0016 , G02B6/0018 , G02B6/0031 , G02B6/0036 , G02B6/0038 , G02B6/0065 , G02B6/1226 , G02B6/4206 , G02B6/4214 , G02B2006/12107
摘要： The invention comprises devices and methods for coupling a light source to a display illumination device. In one embodiment, an illumination device includes a light guide comprising a front surface, a back surface, a light coupling section configured to receive optical energy from a light source in to the light guide through said front surface or said back surface at an angle about normal to the optical energy receiving surface, and further configured to direct light through said light guide, and a light turning section configured to redirect out of the light guide at least a portion of the light received from said light coupling section, said redirected light at an angle about normal to the optical energy receiving surface.
摘要翻译： 本发明包括用于将光源耦合到显示照明装置的装置和方法。 在一个实施例中，照明装置包括光导，其包括前表面，后表面，光耦合部分，被配置为将光能从光源接收到通过所述前表面或所述后表面的光导， 并且还配置成将光引导通过所述光导;以及光转向部，被配置为将从所述光耦合部接收的光的至少一部分重新导向至所述光导中，所述重定向光在 与光能接收表面垂直的角度。
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公开(公告)号：US20110169428A1
公开(公告)日：2011-07-14
申请号：US12684656
申请日：2010-01-08
CPC分类号： G02B6/0028 , G02B6/0038 , G02B6/0061 , G02B6/0068 , Y10T29/49117
摘要： An edge bar having features that discriminate between light propagating in one direction versus the opposite direction may be configured so as to couple light into a light guide while significantly mitigating against edge shadow artifact.
摘要翻译： 具有区分在一个方向上相对于相反方向传播的光的特征的边缘条可以被配置为将光耦合到光导中，同时显着地减轻边缘阴影伪像。
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28.发明授权公开(公告)号：US07898723B2
公开(公告)日：2011-03-01
申请号：US12061312
申请日：2008-04-02
申请人： Kasra Khazeni , Manish Kothari , Ion Bita , Marek Mienko , Gang Xu
发明人： Kasra Khazeni , Manish Kothari , Ion Bita , Marek Mienko , Gang Xu
CPC分类号： G02B26/001 , G09G3/3466
摘要： A microelectromechanical systems (MEMS) display element may include a photovoltaic structure configured to generate electric energy from incident light. In one embodiment, the display element includes a first layer that is at least partially transmissive of light, a second layer that is at least partially reflective of light, and a photovoltaic element that is formed on the first layer or the second layer or formed between the first layer and the second layer. The second layer is spaced from the first layer and is selectably movable between a first position in which the display element has a first reflectivity and a second position in which the display element has a second reflectivity. The first reflectivity is greater than the second reflectivity. The photovoltaic element is at least partially absorptive of light and is configured to convert a portion of the absorbed light into electric energy, at least when the second layer is in the second position.
摘要翻译： 微机电系统（MEMS）显示元件可以包括被配置为从入射光产生电能的光伏结构。 在一个实施例中，显示元件包括至少部分地透射光的第一层，至少部分地反射光的第二层，以及形成在第一层或第二层上或形成在第一层或第二层之间的光电元件 第一层和第二层。 所述第二层与所述第一层间隔开并且可选择地在所述显示元件具有第一反射率的第一位置和所述显示元件具有第二反射率的第二位置之间移动。 第一反射率大于第二反射率。 光电元件至少部分地吸收光，并且被配置为至少当第二层处于第二位置时将吸收的光的一部分转换成电能。
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公开(公告)号：US20090201571A1
公开(公告)日：2009-08-13
申请号：US12369690
申请日：2009-02-11
申请人： Brian J. Gally , Gang Xu , Ion Bita , Marek Mienko , Russell Gruhlke
发明人： Brian J. Gally , Gang Xu , Ion Bita , Marek Mienko , Russell Gruhlke
CPC分类号： G02B6/0041 , G02B6/0038 , G02B6/0051
摘要： A reflective electronic display includes a front light assembly with a diffuser for enlarging the viewing cone of the display. The front light may include a substrate, a plurality of optical turning features, and a diffuser formed therebetween. The haze of the diffuser may be spatially non-uniform and switchable between two or more levels.
摘要翻译： 反射型电子显示器包括具有用于扩大显示器的观察锥的漫射器的前灯组件。 前灯可以包括基板，多个光学旋转特征以及在它们之间形成的扩散器。 扩散器的雾度可以在空间上不均匀并且可以在两个或更多个水平之间切换。
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公开(公告)号：US20090190373A1
公开(公告)日：2009-07-30
申请号：US12416886
申请日：2009-04-01
申请人： Ion Bita , Marek Mienko , Gang Xu , Russell Wayne Gruhlke
发明人： Ion Bita , Marek Mienko , Gang Xu , Russell Wayne Gruhlke
CPC分类号： G02B6/0028 , B82Y20/00 , G02B6/0016 , G02B6/0018 , G02B6/0031 , G02B6/0036 , G02B6/0038 , G02B6/0065 , G02B6/1226 , G02B6/4206 , G02B6/4214 , G02B2006/12107
摘要： The invention comprises devices and methods for coupling a light source to a display illumination device. In one embodiment, an illumination device includes a light guide comprising a front surface, a back surface, a light coupling section configured to receive optical energy from a light source in to the light guide through said front surface or said back surface at an angle about normal to the optical energy receiving surface, and further configured to direct light through said light guide, and a light turning section configured to redirect out of the light guide at least a portion of the light received from said light coupling section, said redirected light at an angle about normal to the optical energy receiving surface.
摘要翻译： 本发明包括用于将光源耦合到显示照明装置的装置和方法。 在一个实施例中，照明装置包括光导，其包括前表面，后表面，光耦合部分，被配置为将光能从光源接收到通过所述前表面或所述后表面的光导， 并且还配置成将光引导通过所述光导;以及光转向部，被配置为将从所述光耦合部接收的光的至少一部分重新导向至所述光导中，所述重定向光在 与光能接收表面垂直的角度。
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