公开(公告)号：EP2941667A4

公开(公告)日：2016-12-14

申请号：EP14735362

申请日：2014-01-03

申请人： REALD INC ,  SCHUCK MILLER H ,  SHARP GARY D ,  MCKNIGHT DOUGLAS J ,  NORTON TERRY

发明人： SCHUCK MILLER H ,  SHARP GARY D ,  MCKNIGHT DOUGLAS J ,  NORTON TERRY

IPC分类号： G02F1/13357 ,  F21S2/00

CPC分类号： G09G3/3648 ,  G02F1/133603 ,  G02F1/133615 ,  G02F2001/133614 ,  G02F2001/133622 ,  G02F2001/133624 ,  G09G3/003 ,  G09G3/3413 ,  G09G2310/024 ,  H04N13/0431

摘要： A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. Several modes of operation may be provided including an advanced 2D mode, and an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters. Another embodiment may be an optical structure for a multi-functional LCD display with wide color gamut and high stereo contrast. The optical structure may also be used to produce more saturated colors for a wider display color gamut and also may be used to produce a brighter backlight structure through light recycling of the wider bandwidth light back into the optical structure.

摘要翻译： 直视图显示器提供光调制面板和包括第一组和第二组光谱发射器的背光。 可以提供几种操作模式，包括高级2D模式和采用第一和第二组光谱发射器的同时照明的增强色域模式。 另一个实施例可以是具有宽色域和高立体对比度的多功能LCD显示器的光学结构。 光学结构也可以用于产生更宽的显示色域的饱和颜色，并且还可以用于通过将更宽带宽的光的光再循环回到光学结构中来产生更亮的背光结构。

公开(公告)号：EP3014356A4

公开(公告)日：2017-03-08

申请号：EP14818642

申请日：2014-06-30

申请人： REALD INC ,  COLEMAN DAVID A ,  SHARP GARY D

发明人： COLEMAN DAVID A ,  SHARP GARY D

IPC分类号： G03B21/56 ,  H04N5/74

CPC分类号： G03B21/60 ,  G03B21/604

公开(公告)号：EP2707772A4

公开(公告)日：2014-09-24

申请号：EP12782590

申请日：2012-05-14

申请人： REALD INC

发明人： COLEMAN DAVID A ,  SHARP GARY D ,  CHEN JIANMIN

IPC分类号： G02B27/26 ,  G02B27/28 ,  H04N13/04

CPC分类号： G02B27/26 ,  G02B5/3083 ,  G02B27/288 ,  G02F1/133528 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/07 ,  G03B21/14 ,  G03B21/206 ,  G03B21/2073 ,  G03B35/26 ,  H04N13/0434

摘要： Disclosed embodiments include stereoscopic systems having at least one compensator operable to reduce the sensitivity of polarization control over incidence angle of image source optics and analyzer optics. In an exemplary embodiment, the disclosed compensator is operable to compensate polarization changes induced by optics at either or both the image source subsystem and the analyzer subsystem, in which the polarization changes would be operable to cause leakage at the analyzer subsystem if uncompensated. As such, the disclosed compensators and compensation techniques are operable to reduce leakage at the analyzer subsystem even if the disclosed compensator may be located at the analyzer subsystem.

摘要翻译： 所公开的实施例包括具有至少一个补偿器的立体系统，其可操作以降低偏振控制对图像源光学器件和分析器光学器件的入射角的灵敏度。 在示例性实施例中，所公开的补偿器可操作以补偿由图像源子系统和分析器子系统中的一个或两者由光学器件引起的偏振变化，其中如果未补偿，则极化改变将可操作以导致分析器子系统处的泄漏。 因此，所公开的补偿器和补偿技术可操作以减少分析器子系统的泄漏，即使所公开的补偿器可能位于分析器子系统。

公开(公告)号：EP2850487A4

公开(公告)日：2016-03-30

申请号：EP13790267

申请日：2013-05-15

申请人： REALD INC

发明人： ROBINSON MICHAEL G ,  WOODGATE GRAHAM J ,  HARROLD JONATHAN ,  SHARP GARY D ,  SCHUCK MILLER H

IPC分类号： F21S2/00 ,  F21V8/00 ,  G02F1/13357

CPC分类号： H04N13/0413 ,  G02B6/0048 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/22 ,  H04N13/0418

摘要： A directional backlight for a transmissive spatial light modulator comprises a waveguide having an input end, first and second, opposed guide surfaces for guiding light along the waveguide, and a reflective end facing the input end for reflecting light from the input light back through the waveguide. An array of light sources that output light predominantly in an emission band and in a conversion band are disposed across the input end of the waveguide and light is directed into respective optical windows in output directions distributed in the lateral direction in dependence on the input positions. To achieve crosstalk suppression, disposed between the input end and the light sources is a reflection reduction element that comprises a filter arranged to absorb light in the conversion band preferentially over light in the emission band, thereby reducing reflections of light incident on the input end after reflection from the reflective end.

公开(公告)号：EP2850483A4

公开(公告)日：2016-03-09

申请号：EP13790274

申请日：2013-05-15

申请人： REALD INC

发明人： ROBINSON MICHAEL G ,  SHARP GARY D ,  WOODGATE GRAHAM J ,  HARROLD JONATHAN ,  SCHUCK MILLER H

IPC分类号： F21S2/00 ,  F21V8/00 ,  G02F1/13357

CPC分类号： G02B6/0048 ,  F21V13/12 ,  G02B6/0056 ,  G02B27/225 ,  G02B27/2264

摘要： Disclosed is an imaging directional backlight polarization recovery apparatus including an imaging directional backlight with at least a polarization sensitive reflection component with optional polarization transformation and redirection elements. Viewing windows may be formed through imaging individual light sources and hence defines the relative positions of system elements and ray paths. The base imaging directional backlight systems provide substantially unpolarized light primarily for the illumination of liquid crystal displays (LCDs) resulting in at least 50% loss in light output when using a conventional sheet polarizer as input to the display. The invention herein introduces a polarization sensitive reflecting element to separate desired and undesired polarization states for the purposes of transformation and redirection of the reflected light for usable illumination. Polarization transformation and redirection can be provided by additional components such as retarder films and specular mirror surfaces.

公开(公告)号：EP2433172A4

公开(公告)日：2012-12-26

申请号：EP10778507

申请日：2010-05-21

申请人： REALD INC

发明人： SHARP GARY D

IPC分类号： G02B27/28 ,  G02B26/00 ,  G02B27/18 ,  G02B27/26 ,  H04N13/04

CPC分类号： G03B35/26 ,  G02B26/00 ,  G02B27/26 ,  G02B27/286 ,  H04N13/0438 ,  H04N13/0459

摘要： A polarization switch provides substantially ideal binary polarization switching over a broad range of wavelengths using a polarization modulation wheel having at least one retarder stack that transforms polarization. Using the polarization modulation wheel in a polarization system provides a high throughput polarization switch and operates over a wide range of incidence angles while providing substantially continuous and smooth polarization output for each component for any selected polarization basis set. The polarization modulation wheel is well-suited for stereoscopic polarized projection applications.

公开(公告)号：EP2732337A4

公开(公告)日：2015-01-14

申请号：EP12811946

申请日：2012-07-13

申请人： REALD INC

发明人： SHARP GARY D ,  COLEMAN DAVID A ,  KONDO DARLENE K

IPC分类号： G03B21/56

CPC分类号： G03B21/56 ,  Y10T156/1089 ,  Y10T428/24752

摘要： The present disclosure describes a manufacturing method for seaming materials. The process may be suitable for manufacturing high performance projection screens using a number of methods including, but not limited to, conventional (convert-before-coating) methods, or convert-after-coating methods. An objective of the present disclosure is to identify a process which may substantially minimize distortion of the local surface normal in the vicinity of the join.

公开(公告)号：EP2145215A4

公开(公告)日：2011-12-28

申请号：EP08769432

申请日：2008-05-09

申请人： REALD INC

发明人： SCHUCK MILLER H ,  ROBINSON MICHAEL G ,  SHARP GARY D

IPC分类号： G02B5/30 ,  G02B27/26 ,  H04N13/04

CPC分类号： G02B27/26 ,  G02B13/00 ,  G02B26/008 ,  H04N13/0434 ,  H04N13/0438

摘要： A polarization conversion system separates light from an unpolarized image source into a first state of polarization (SOP) and an orthogonal second SOP, and directs the polarized light on first and second light paths. The SOP of light on only one of the light paths is transformed to an orthogonal state such that both light paths have the same SOP. A polarization modulator temporally modulates the light on the first and second light paths to first and second output states of polarization. First and second projection lenses direct light on the first and second light paths toward a projection screen to form substantially overlapping polarization encoded images. The polarization modulator may be located before or after the projection lenses. The polarization-encoded images may be viewed using eyewear with appropriate polarization filters.

公开(公告)号：EP2067066A4

公开(公告)日：2011-11-16

申请号：EP07843526

申请日：2007-09-28

申请人： REALD INC

发明人： SCHUCK MILLER H ,  ROBINSON MICHAEL G ,  SHARP GARY D

IPC分类号： G02B27/26 ,  H04N13/00

CPC分类号： G03B35/26 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/283 ,  G03B21/142 ,  G03B21/28 ,  G03B35/22 ,  H04N13/0438

摘要： A polarization conversions system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.

公开(公告)号：EP2240825A4

公开(公告)日：2011-05-18

申请号：EP09705162

申请日：2009-01-28

申请人： REALD INC

发明人： COLEMAN DAVID A ,  SHARP GARY D

IPC分类号： G03B21/60 ,  G02B27/26 ,  G03B35/16 ,  G03B35/26

CPC分类号： G03B21/60 ,  F16H21/14 ,  G02B27/26 ,  G03B35/16 ,  G03B35/26 ,  Y10T74/18232 ,  Y10T428/24802