CA2871779C - Crosstalk suppression in a directional backlight - Google Patents
Crosstalk suppression in a directional backlight Download PDFInfo
- Publication number
- CA2871779C CA2871779C CA2871779A CA2871779A CA2871779C CA 2871779 C CA2871779 C CA 2871779C CA 2871779 A CA2871779 A CA 2871779A CA 2871779 A CA2871779 A CA 2871779A CA 2871779 C CA2871779 C CA 2871779C
- Authority
- CA
- Canada
- Prior art keywords
- light
- waveguide
- directional backlight
- input end
- reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
- G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
- H04N13/315—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers the parallax barriers being time-variant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/32—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using arrays of controllable light sources; using moving apertures or moving light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Led Devices (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261649136P | 2012-05-18 | 2012-05-18 | |
| US201261648942P | 2012-05-18 | 2012-05-18 | |
| US61/649,136 | 2012-05-18 | ||
| US61/648,942 | 2012-05-18 | ||
| US13/836,443 US9350980B2 (en) | 2012-05-18 | 2013-03-15 | Crosstalk suppression in a directional backlight |
| US13/836,443 | 2013-03-15 | ||
| PCT/US2013/041228 WO2013173507A1 (en) | 2012-05-18 | 2013-05-15 | Crosstalk suppression in a directional backlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2871779A1 CA2871779A1 (en) | 2013-11-21 |
| CA2871779C true CA2871779C (en) | 2022-08-02 |
Family
ID=49580995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2871779A Active CA2871779C (en) | 2012-05-18 | 2013-05-15 | Crosstalk suppression in a directional backlight |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9350980B2 (enExample) |
| EP (2) | EP2850487B1 (enExample) |
| JP (2) | JP6403216B2 (enExample) |
| KR (1) | KR102033916B1 (enExample) |
| CN (1) | CN104380186B (enExample) |
| CA (1) | CA2871779C (enExample) |
| IN (1) | IN2014DN09300A (enExample) |
| WO (1) | WO2013173507A1 (enExample) |
Families Citing this family (43)
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| KR101670927B1 (ko) * | 2010-11-05 | 2016-11-01 | 삼성전자주식회사 | 디스플레이 장치 및 방법 |
| US9235057B2 (en) | 2012-05-18 | 2016-01-12 | Reald Inc. | Polarization recovery in a directional display device |
| WO2013173695A1 (en) | 2012-05-18 | 2013-11-21 | Reald Inc. | Controlling light sources of a directional backlight |
| US9678267B2 (en) | 2012-05-18 | 2017-06-13 | Reald Spark, Llc | Wide angle imaging directional backlights |
| WO2013173786A1 (en) | 2012-05-18 | 2013-11-21 | Reald Inc. | Directional backlight |
| US9188731B2 (en) | 2012-05-18 | 2015-11-17 | Reald Inc. | Directional backlight |
| WO2014130860A1 (en) | 2013-02-22 | 2014-08-28 | Reald Inc. | Directional backlight |
| CN105474633B (zh) | 2013-06-17 | 2019-07-09 | 瑞尔D斯帕克有限责任公司 | 控制定向背光的光源 |
| CN106062620B (zh) | 2013-10-14 | 2020-02-07 | 瑞尔D斯帕克有限责任公司 | 用于定向背光源的光输入 |
| WO2015057625A1 (en) | 2013-10-14 | 2015-04-23 | Reald Inc. | Control of directional display |
| EP3936934B1 (en) * | 2014-03-21 | 2024-04-24 | RealD Spark, LLC | Directional backlight |
| CN105301689B (zh) * | 2014-05-30 | 2018-04-10 | 扬升照明股份有限公司 | 导光单元以及光源模块 |
| CN106662773B (zh) * | 2014-06-26 | 2021-08-06 | 瑞尔D 斯帕克有限责任公司 | 定向防窥显示器 |
| WO2016057690A1 (en) | 2014-10-08 | 2016-04-14 | Reald Inc. | Directional backlight |
| US10356383B2 (en) | 2014-12-24 | 2019-07-16 | Reald Spark, Llc | Adjustment of perceived roundness in stereoscopic image of a head |
| RU2596062C1 (ru) | 2015-03-20 | 2016-08-27 | Автономная Некоммерческая Образовательная Организация Высшего Профессионального Образования "Сколковский Институт Науки И Технологий" | Способ коррекции изображения глаз с использованием машинного обучения и способ машинного обучения |
| US10459152B2 (en) | 2015-04-13 | 2019-10-29 | Reald Spark, Llc | Wide angle imaging directional backlights |
| CN107850804B (zh) | 2015-05-27 | 2021-06-11 | 瑞尔D斯帕克有限责任公司 | 广角成像定向背光源 |
| CN110161789B (zh) * | 2015-08-04 | 2021-02-02 | 深圳光峰科技股份有限公司 | 投影系统 |
| WO2017074951A1 (en) | 2015-10-26 | 2017-05-04 | Reald Inc. | Intelligent privacy system, apparatus, and method thereof |
| US10459321B2 (en) | 2015-11-10 | 2019-10-29 | Reald Inc. | Distortion matching polarization conversion systems and methods thereof |
| EP3374692B1 (en) | 2015-11-13 | 2021-02-24 | RealD Spark, LLC | Wide angle imaging directional backlights |
| EP4293417A3 (en) | 2015-11-13 | 2024-01-24 | RealD Spark, LLC | Surface features for imaging directional backlights |
| ES2912310T3 (es) | 2016-01-05 | 2022-05-25 | Reald Spark Llc | Corrección de la mirada en imágenes multivista |
| EP3458897B1 (en) | 2016-05-19 | 2025-04-02 | RealD Spark, LLC | Wide angle imaging directional backlights |
| US10425635B2 (en) | 2016-05-23 | 2019-09-24 | Reald Spark, Llc | Wide angle imaging directional backlights |
| CN110178072B (zh) | 2017-01-04 | 2022-03-11 | 瑞尔D斯帕克有限责任公司 | 用于成像定向背光源的光学叠堆 |
| AU2018230767A1 (en) | 2017-03-08 | 2019-10-03 | Gary Sharp Innovations, Inc. | Wide angle variable neutral density filter |
| WO2018187154A1 (en) | 2017-04-03 | 2018-10-11 | Reald Spark, Llc | Segmented imaging directional backlights |
| AU2018304186A1 (en) | 2017-07-17 | 2020-02-06 | Gary Sharp Innovations, Inc. | Wide-angle compensation of uniaxial retarder stacks |
| EP3665553B1 (en) | 2017-08-08 | 2023-12-13 | RealD Spark, LLC | Adjusting a digital representation of a head region |
| US11109014B2 (en) | 2017-11-06 | 2021-08-31 | Reald Spark, Llc | Privacy display apparatus |
| CN108107598A (zh) * | 2017-12-25 | 2018-06-01 | 佛山科学技术学院 | 一种曲面裸眼3d显示装置 |
| CN111919162B (zh) | 2018-01-25 | 2024-05-24 | 瑞尔D斯帕克有限责任公司 | 用于隐私显示器的触摸屏 |
| CN112219140A (zh) | 2018-01-29 | 2021-01-12 | 加里夏普创新有限责任公司 | 中空三通光学元件 |
| US11249355B2 (en) | 2018-01-29 | 2022-02-15 | Gary Sharp Innovations, Llc | Color switch for reduced color cross-talk |
| CN112219143B (zh) | 2018-03-02 | 2022-11-22 | 加里夏普创新有限责任公司 | 用于偏振基向量转换的延迟器堆栈对 |
| JP6962882B2 (ja) * | 2018-08-24 | 2021-11-05 | 株式会社三共 | 遊技機 |
| US11668977B2 (en) | 2018-12-14 | 2023-06-06 | 3M Innovative Properties Company | Liquid crystal display having a frontside light control film |
| US12000963B2 (en) * | 2020-01-07 | 2024-06-04 | Samsung Electronics Co., Ltd. | LiDAR device and method of operating the same |
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2013
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- 2013-05-15 IN IN9300DEN2014 patent/IN2014DN09300A/en unknown
- 2013-05-15 JP JP2015512804A patent/JP6403216B2/ja active Active
- 2013-05-15 WO PCT/US2013/041228 patent/WO2013173507A1/en not_active Ceased
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- 2013-05-15 CA CA2871779A patent/CA2871779C/en active Active
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- 2013-05-15 KR KR1020147035106A patent/KR102033916B1/ko active Active
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|---|---|
| EP2850487B1 (en) | 2017-11-01 |
| JP2018156953A (ja) | 2018-10-04 |
| CN104380186B (zh) | 2019-12-06 |
| EP3258160A1 (en) | 2017-12-20 |
| IN2014DN09300A (enExample) | 2015-07-10 |
| JP6403216B2 (ja) | 2018-10-10 |
| US9350980B2 (en) | 2016-05-24 |
| EP3258160B1 (en) | 2022-01-19 |
| EP2850487A4 (en) | 2016-03-30 |
| EP2850487A1 (en) | 2015-03-25 |
| WO2013173507A1 (en) | 2013-11-21 |
| CN104380186A (zh) | 2015-02-25 |
| KR102033916B1 (ko) | 2019-11-08 |
| US20130307946A1 (en) | 2013-11-21 |
| KR20150021936A (ko) | 2015-03-03 |
| CA2871779A1 (en) | 2013-11-21 |
| JP2015525431A (ja) | 2015-09-03 |
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