公开(公告)号：EP2850482A1

公开(公告)日：2015-03-25

申请号：EP13790942.0

申请日：2013-05-17

Applicant: RealD Inc.

Inventor： WOODGATE, Graham, J. ,  ROBINSON, Michael, G. ,  HARROLD, Jonathan

IPC: G02B27/22 ,  H04N13/04 ,  G02F1/13357

CPC classification number: G09G5/10 ,  B60K35/00 ,  G02B6/0011 ,  G02B6/003 ,  G02B6/0048 ,  G02B6/0066 ,  G02B6/0068 ,  G02B27/225 ,  H04N13/32 ,  H04N13/356 ,  H04N2013/403 ,  H04N2213/001

Abstract: Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.

公开(公告)号：EP2593829A2

公开(公告)日：2013-05-22

申请号：EP11807480.6

申请日：2011-07-13

Applicant: RealD Inc.

Inventor： SHARP, Gary, D. ,  CHEN, Jianmin ,  ROBINSON, Michael, G.

IPC: G02B27/26 ,  G02F1/1335 ,  G02F1/13363 ,  G03B21/00

CPC classification number: H04N13/337 ,  G02B27/26 ,  G02F1/133528 ,  G02F1/133634 ,  G02F1/13471 ,  G02F1/1395 ,  G02F2001/133531 ,  G02F2413/11 ,  H04N13/363

Abstract: Generally, this disclosure concerns the angle sensitivity of polarization switch elements and the resulting impact of the ray direction on performance. More specifically, apparatus and techniques for compensating the angular sensitivity of liquid crystal (LC) polarization switches are described that enhance the performance of polarization switches. For example, a polarization switch is disclosed that transforms linearly polarized light of an initial polarization orientation that includes a first and second liquid crystal cell with a compensator located between the LC cells. The compensator layer is operable to enhance the field of view through the polarization switch. Such compensation techniques are particularly useful for short-throw projection environments.

公开(公告)号：EP2572234A1

公开(公告)日：2013-03-27

申请号：EP11732109.1

申请日：2011-01-05

Applicant: RealD Inc.

Inventor： ROBINSON, Michael, G. ,  MCKNIGHT, Douglas, J.

IPC: G02B27/26

CPC classification number: G02B27/2264 ,  G02B27/26 ,  G09G3/003 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2310/062 ,  H04N13/341

Abstract: This disclosure primarily concerns 3D stereoscopic displays that provide alternately polarized left and right eye images encoded with a modulating LC polarization control panel (PCP) attached to the front of the display. Viewers then wear polarization analyzing eyewear to correctly see the different images. More specifically, the disclosure introduces global LC electrical reset during the addressing of liquid crystal time-sequential stereoscopic displays in order to reduce left/right eye contamination. LC materials in general do not respond fast enough with conventional addressing schemes to provide independent left and right eye images at the desired flicker-free, rate of sixty frames per second per eye. This disclosure and its embodiments may overcome this limitation, and also may address motion blur limitations, by driving pixels to a common LC state as part of the addressing cycle.

Abstract translation: 本公开内容主要涉及提供交替极化的左眼和右眼图像的3D立体显示器，所述左右眼图像利用附接到显示器前部的调制LC偏振控制面板（PCP）编码。 观众然后穿戴偏光分析眼镜正确地看见不同的图象。 更具体地，本公开在液晶时序连续立体显示器的寻址期间引入全局LC电复位以减少左/右眼污染。 一般来说，LC材料对传统寻址方案的响应不够快，无法以每眼每秒60帧的无闪烁速率提供独立的左眼和右眼图像。 作为寻址周期的一部分，通过将像素驱动到公共LC状态，本公开及其实施例可克服此限制，并且还可解决运动模糊限制。

公开(公告)号：EP1955107B1

公开(公告)日：2012-02-22

申请号：EP07840434.0

申请日：2007-07-18

Applicant: RealD Inc.

Inventor： SCHUCK, Miller, H. ,  ROBINSON, Michael, G.

IPC: G02B5/30 ,  G02B6/00 ,  G02B27/28 ,  F21V7/00 ,  F21V9/14 ,  G03B21/20 ,  H04N5/74 ,  H04N9/31

CPC classification number: G02B6/0096 ,  G02B27/0994 ,  G02B27/283 ,  G03B21/2013 ,  G03B21/208 ,  H04N9/3152 ,  H04N9/3158 ,  H04N9/3167

Abstract: Disclosed herein are light collectors for use in projection applications. The light collectors gather light from surface emitting sources (e.g., LEDs) of differing color (or same color in some embodiments) using input lightpipes. A light collection system splits the light into orthogonal linear polarization states and efficiently propagates the light by use of a polarizing beamsplitter (PBS) and a reflecting element. Further, the light collection system may efficiently homogenize the light using an output lightpipe in a lightpath from the output of the PBS and the reflecting element. In addition, the light collection system may present a single, linear polarization at the output through the use of a half-wave switch (LC cell) in some embodiments or ColorSelect filter in other embodiments. The light collection system may be integrated into a single, monolithic glass, plastic or combination glass/plastic assembly.

公开(公告)号：EP2409279A1

公开(公告)日：2012-01-25

申请号：EP10756671.3

申请日：2010-03-22

Applicant: RealD Inc.

Inventor： ROBINSON, Michael, G. ,  OZINGA, Charles, J.

IPC: G06T15/00

CPC classification number: H04N13/128 ,  H04N13/239 ,  H04N13/275 ,  H04N13/279 ,  H04N13/334 ,  H04N13/378 ,  H04N2013/0081

Abstract: A method and apparatus for providing optimal correction to depth mapping between captured and displayed stereoscopic content. The solution is derived in a continuous form that can be implemented through CGI scaling techniques compatible with image rendering techniques. Similar correction can be implemented with variable depth-dependent camera separation and disparity re-mapping. The latter is applicable to correcting existing stereoscopic content.

Abstract translation: 一种方法和装置，用于为捕捉和显示的立体内容之间的深度映射提供最佳校正。 该解决方案以连续形式派生，可以通过与图像渲染技术兼容的CGI缩放技术实现。 可以使用可变深度相关分离和差异重新映射来实现类似的校正。 后者适用于纠正现有的立体内容。

公开(公告)号：EP2319016A1

公开(公告)日：2011-05-11

申请号：EP09807398.4

申请日：2009-08-14

Applicant: RealD Inc.

Inventor： ROBINSON, Michael, G.

IPC: G06T15/00

CPC classification number: H04N13/246 ,  G06T7/593 ,  G06T15/20 ,  G06T2207/10012 ,  H04N13/128 ,  H04N13/239 ,  H04N13/296

Abstract: Provided is a method and apparatus for linear depth mapping. Linear depth mapping includes using algorithms to correct the distorted depth mapping of stereoscopic capture and display systems.

公开(公告)号：EP1982317B1

公开(公告)日：2017-08-09

申请号：EP07756847.5

申请日：2007-02-09

Applicant: RealD Inc.

Inventor： SHARP, Gary, D. ,  ROBINSON, Michael, G.

IPC: G09F13/08

CPC classification number: G09G3/003 ,  G02F1/133603 ,  G02F1/133621 ,  G02F2001/133626 ,  G09G3/3413 ,  G09G3/342 ,  G09G2310/0235 ,  G09G2310/024 ,  G09G2310/061 ,  G09G2320/0261 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2360/145 ,  H04N13/334

Abstract: A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. The first set of spectral emitters generate a first light bundle and the second set of spectral emitters generate a second light bundle. Several modes of operation may be provided including (1) an advanced 2D mode, (2) an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters, (3) a privacy screen mode, (4) a channel multiplexed mode, and (5) a stereoscopic image mode. The latter three modes utilize the first and second set of spectral emitters to alternately illuminate a portion of the light modulating panel. Images and representations generated by the direct view display operating in the latter three modes are viewed using appropriate eyewear having filters with passband characteristics to transmit the respective light bundle.

Abstract translation: 直视型显示器提供光调制板和包括第一和第二组光谱发射器的背光。 第一组光谱发射器产生第一光束，第二组光谱发射器产生第二光束。 可以提供几种操作模式，包括（1）高级2D模式，（2）采用同时照射第一和第二组光谱发射器的增强色域模式，（3）隐私屏幕模式，（4）通道 多路复用模式，以及（5）立体图像模式。 后三种模式利用第一和第二组光谱发射器交替地照射光调制面板的一部分。 在后三种模式下操作的直接观看显示器产生的图像和表示使用具有通带特性的滤光片的适当眼镜来传输相应的光束。

公开(公告)号：EP3058422A1

公开(公告)日：2016-08-24

申请号：EP14853532.1

申请日：2014-10-13

Applicant: RealD Inc. ,  Robinson, Michael G. ,  Woodgate, Graham J. ,  Harrold, Jonathan

Inventor： ROBINSON, Michael, G. ,  WOODGATE, Graham, J. ,  HARROLD, Jonathan

IPC: G02F1/13357 ,  F21V8/00

CPC classification number: G02B6/0068 ,  G02B6/0048 ,  G02B6/0066 ,  G02B6/0073 ,  G02B27/22

Abstract: A directional backlight may include a light guiding apparatus including at least one transparent optical waveguide for providing large area collimated illumination from localized light sources. The waveguide is arranged in a first part and a second part with a light injection aperture between the respective parts. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality including high brightness displays and high display efficiency.

公开(公告)号：EP2875638A1

公开(公告)日：2015-05-27

申请号：EP13822472.0

申请日：2013-07-10

Applicant: RealD Inc.

Inventor： WOODGATE, Graham, J. ,  ROBINSON, Michael, G. ,  HARROLD, Jonathan

IPC: H04N13/00

CPC classification number: G02B27/2214 ,  G02B27/0093 ,  G02F1/01 ,  G02F1/13 ,  G02F1/29

Abstract: A spatially multiplexed autostereoscopic display is arranged to provide landscape and portrait operation. Multiple optical windows may be provided by spatial and temporal multiplexing techniques. A fast response lens array pair is aligned with a fast response spatial light modulator, and synchronized to provide first and second sets of images with first and second respective directionalities to provide first and second sets of respective optical windows. The first and second sets of optical windows may each comprise two or more optical windows in each viewing lobe. The optical windows may be arranged with an inclination to the vertical of 25 degrees to 65 degrees. An observer tracking system may be arranged to direct left and right eye image data to the left and right eyes of an observer, respectively, for landscape and portrait orientations of the display.

公开(公告)号：EP2850487A1

公开(公告)日：2015-03-25

申请号：EP13790267.2

申请日：2013-05-15

Applicant: RealD Inc.

Inventor： ROBINSON, Michael, G. ,  WOODGATE, Graham, J. ,  HARROLD, Jonathan ,  SHARP, Gary, D. ,  SCHUCK, Miller, H.

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

CPC classification number: H04N13/315 ,  G02B6/0048 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0068 ,  G02B27/22 ,  H04N13/32

Abstract: 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.