WO2009011199A1 - ディスプレイおよびそれに用いられる視野角制御素子 - Google Patents
ディスプレイおよびそれに用いられる視野角制御素子 Download PDFInfo
- Publication number
- WO2009011199A1 WO2009011199A1 PCT/JP2008/061199 JP2008061199W WO2009011199A1 WO 2009011199 A1 WO2009011199 A1 WO 2009011199A1 JP 2008061199 W JP2008061199 W JP 2008061199W WO 2009011199 A1 WO2009011199 A1 WO 2009011199A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- visual angle
- display
- liquid crystal
- angle
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
- G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/40—Materials having a particular birefringence, retardation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/09—Function characteristic transflective
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/01—Number of plates being 1
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/14—Negative birefingence
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/668,871 US8098350B2 (en) | 2007-07-19 | 2008-06-19 | Display and view angle control element employed therein |
JP2009523579A JP4928608B2 (ja) | 2007-07-19 | 2008-06-19 | ディスプレイおよびそれに用いられる視野角制御素子 |
CN2008800198000A CN101681577B (zh) | 2007-07-19 | 2008-06-19 | 显示器和用于该显示器的视野角控制元件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007188533 | 2007-07-19 | ||
JP2007-188533 | 2007-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009011199A1 true WO2009011199A1 (ja) | 2009-01-22 |
Family
ID=40259539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/061199 WO2009011199A1 (ja) | 2007-07-19 | 2008-06-19 | ディスプレイおよびそれに用いられる視野角制御素子 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8098350B2 (ja) |
JP (1) | JP4928608B2 (ja) |
CN (1) | CN101681577B (ja) |
WO (1) | WO2009011199A1 (ja) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018072819A (ja) * | 2016-10-25 | 2018-05-10 | 揚昇照明股▲ふん▼有限公司 | 視野角制御装置及び視野角制御可能な表示装置 |
WO2018109991A1 (ja) * | 2016-12-12 | 2018-06-21 | シャープ株式会社 | 表示装置、電子ミラー、表示装置の制御方法、プログラム、記録媒体 |
JP2018120210A (ja) * | 2017-01-25 | 2018-08-02 | 揚昇照明股▲ふん▼有限公司 | 視野角切り替え可能な表示装置 |
JP2021513101A (ja) * | 2018-01-25 | 2021-05-20 | リアルディー スパーク エルエルシー | プライバシーディスプレイ用反射型光学スタック |
US11624944B2 (en) | 2020-07-29 | 2023-04-11 | Reald Spark, Llc | Backlight for switchable directional display |
US11668963B2 (en) | 2020-04-30 | 2023-06-06 | Reald Spark, Llc | Directional display apparatus |
US11733578B2 (en) | 2019-11-13 | 2023-08-22 | ReaID Spark, LLC | Display device with uniform off-axis luminance reduction |
US11740496B2 (en) | 2020-07-29 | 2023-08-29 | Reald Spark, Llc | Pupillated illumination apparatus |
US11747693B2 (en) | 2018-07-18 | 2023-09-05 | Reald Spark, Llc | Optical stack for switchable directional display |
US11796828B2 (en) | 2019-12-10 | 2023-10-24 | Reald Spark, Llc | Control of reflections of a display device |
US11808965B2 (en) | 2018-03-22 | 2023-11-07 | Reald Spark, Llc | Optical waveguide for directional backlight |
US11809052B2 (en) | 2018-06-29 | 2023-11-07 | Reald Spark, Llc | Stabilization for privacy display |
US11874541B2 (en) | 2019-07-02 | 2024-01-16 | Reald Spark, Llc | Directional display apparatus |
US11892718B2 (en) | 2022-04-07 | 2024-02-06 | Reald Spark, Llc | Directional display apparatus |
US11892717B2 (en) | 2021-09-30 | 2024-02-06 | Reald Spark, Llc | Marks for privacy display |
US11977286B2 (en) | 2022-02-09 | 2024-05-07 | Reald Spark, Llc | Observer-tracked privacy display |
US12038649B2 (en) | 2018-11-07 | 2024-07-16 | Reald Spark, Llc | Directional display apparatus |
US12066717B2 (en) | 2017-09-15 | 2024-08-20 | Reald Spark, Llc | Optical stack for switchable directional display |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4794669B2 (ja) * | 2007-05-21 | 2011-10-19 | シャープ株式会社 | ディスプレイおよびそれに用いられる視野角制御素子 |
EP3369034B1 (en) | 2015-10-26 | 2023-07-05 | RealD Spark, LLC | Intelligent privacy system, apparatus, and method thereof |
US10649248B1 (en) * | 2017-01-17 | 2020-05-12 | Apple Inc. | Displays with adjustable privacy levels |
US10126575B1 (en) | 2017-05-08 | 2018-11-13 | Reald Spark, Llc | Optical stack for privacy display |
CN110785694B (zh) | 2017-05-08 | 2023-06-23 | 瑞尔D斯帕克有限责任公司 | 用于定向显示器的光学叠堆 |
US11115647B2 (en) | 2017-11-06 | 2021-09-07 | Reald Spark, Llc | Privacy display apparatus |
KR20200120650A (ko) | 2018-01-25 | 2020-10-21 | 리얼디 스파크, 엘엘씨 | 프라이버시 디스플레이를 위한 터치스크린 |
US11106103B2 (en) | 2018-10-03 | 2021-08-31 | Reald Spark, Llc | Privacy display apparatus controlled in response to environment of apparatus |
US11287677B2 (en) | 2019-01-07 | 2022-03-29 | Reald Spark, Llc | Optical stack for privacy display |
WO2020167680A1 (en) | 2019-02-12 | 2020-08-20 | Reald Spark, Llc | Diffuser for privacy display |
WO2021026018A1 (en) | 2019-08-02 | 2021-02-11 | Reald Spark, Llc | Optical stack for privacy display |
WO2021060371A1 (ja) | 2019-09-27 | 2021-04-01 | 富士フイルム株式会社 | 光学素子 |
US11114063B2 (en) | 2019-10-02 | 2021-09-07 | Reald Spark, Llc | Privacy display apparatus |
CN110824740B (zh) * | 2019-11-11 | 2022-09-23 | 昆山龙腾光电股份有限公司 | 显示面板、显示面板的视角控制方法及显示装置 |
EP4078254B1 (en) | 2019-12-18 | 2024-09-25 | RealD Spark, LLC | Control of ambient light for a privacy display |
WO2021222598A1 (en) | 2020-04-30 | 2021-11-04 | Reald Spark, Llc | Directional display apparatus |
US11442316B2 (en) | 2020-04-30 | 2022-09-13 | Reald Spark, Llc | Directional display apparatus |
US20220163828A1 (en) * | 2020-11-25 | 2022-05-26 | Innolux Corporation | Electronic device |
CN115728983A (zh) * | 2022-11-11 | 2023-03-03 | 厦门天马微电子有限公司 | 一种显示模组和显示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005316470A (ja) * | 2004-04-20 | 2005-11-10 | Sharp Corp | 付加的光変調lc部分を通す視覚切替え式ディスプレイデバイス |
JP2006106439A (ja) * | 2004-10-06 | 2006-04-20 | Sharp Corp | 表示装置および電子機器 |
JP2007052260A (ja) * | 2005-08-18 | 2007-03-01 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示装置 |
JP2007155817A (ja) * | 2005-11-30 | 2007-06-21 | Toshiba Matsushita Display Technology Co Ltd | 表示装置 |
Family Cites Families (7)
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JPH10268251A (ja) | 1997-03-27 | 1998-10-09 | Advanced Display:Kk | 液晶表示装置の制御方法 |
JP3999206B2 (ja) * | 2004-02-05 | 2007-10-31 | シャープ株式会社 | 視野角制御素子およびそれを用いた映像表示装置 |
GB2418518A (en) * | 2004-09-24 | 2006-03-29 | Sharp Kk | A Display |
JP4536489B2 (ja) * | 2004-11-15 | 2010-09-01 | 株式会社 日立ディスプレイズ | 光学素子及びそれを用いた表示装置 |
CN100351684C (zh) * | 2005-01-11 | 2007-11-28 | 友达光电股份有限公司 | 可调整视角的液晶显示器及其调整视角方法 |
JP4254782B2 (ja) * | 2005-11-21 | 2009-04-15 | エプソンイメージングデバイス株式会社 | 画像表示装置及び電子機器 |
CN101405645B (zh) * | 2006-05-31 | 2011-04-06 | 夏普株式会社 | 显示装置系统 |
-
2008
- 2008-06-19 CN CN2008800198000A patent/CN101681577B/zh not_active Expired - Fee Related
- 2008-06-19 WO PCT/JP2008/061199 patent/WO2009011199A1/ja active Application Filing
- 2008-06-19 US US12/668,871 patent/US8098350B2/en not_active Expired - Fee Related
- 2008-06-19 JP JP2009523579A patent/JP4928608B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005316470A (ja) * | 2004-04-20 | 2005-11-10 | Sharp Corp | 付加的光変調lc部分を通す視覚切替え式ディスプレイデバイス |
JP2006106439A (ja) * | 2004-10-06 | 2006-04-20 | Sharp Corp | 表示装置および電子機器 |
JP2007052260A (ja) * | 2005-08-18 | 2007-03-01 | Toshiba Matsushita Display Technology Co Ltd | 液晶表示装置 |
JP2007155817A (ja) * | 2005-11-30 | 2007-06-21 | Toshiba Matsushita Display Technology Co Ltd | 表示装置 |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018072819A (ja) * | 2016-10-25 | 2018-05-10 | 揚昇照明股▲ふん▼有限公司 | 視野角制御装置及び視野角制御可能な表示装置 |
JP7108393B2 (ja) | 2016-10-25 | 2022-07-28 | 中強光電股▲ふん▼有限公司 | 視野角制御装置及び視野角制御可能な表示装置 |
WO2018109991A1 (ja) * | 2016-12-12 | 2018-06-21 | シャープ株式会社 | 表示装置、電子ミラー、表示装置の制御方法、プログラム、記録媒体 |
JP7114247B2 (ja) | 2017-01-25 | 2022-08-08 | 中強光電股▲ふん▼有限公司 | 視野角切り替え可能な表示装置 |
JP2018120210A (ja) * | 2017-01-25 | 2018-08-02 | 揚昇照明股▲ふん▼有限公司 | 視野角切り替え可能な表示装置 |
US11402676B2 (en) | 2017-01-25 | 2022-08-02 | Coretronic Corporation | Viewing angle switchable display apparatus |
US12066717B2 (en) | 2017-09-15 | 2024-08-20 | Reald Spark, Llc | Optical stack for switchable directional display |
US11630336B2 (en) | 2018-01-25 | 2023-04-18 | Reald Spark, Llc | Reflective optical stack for privacy display |
JP2021513101A (ja) * | 2018-01-25 | 2021-05-20 | リアルディー スパーク エルエルシー | プライバシーディスプレイ用反射型光学スタック |
US12038633B2 (en) | 2018-01-25 | 2024-07-16 | Reald Spark, Llc | Reflective optical stack for privacy display |
JP7291444B2 (ja) | 2018-01-25 | 2023-06-15 | リアルディー スパーク エルエルシー | ディスプレイデバイスおよび視野角制御光学素子 |
US11808965B2 (en) | 2018-03-22 | 2023-11-07 | Reald Spark, Llc | Optical waveguide for directional backlight |
US11809052B2 (en) | 2018-06-29 | 2023-11-07 | Reald Spark, Llc | Stabilization for privacy display |
US11874576B2 (en) | 2018-06-29 | 2024-01-16 | Reald Spark, Llc | Optical stack for privacy display |
US11747693B2 (en) | 2018-07-18 | 2023-09-05 | Reald Spark, Llc | Optical stack for switchable directional display |
US12038649B2 (en) | 2018-11-07 | 2024-07-16 | Reald Spark, Llc | Directional display apparatus |
US11874541B2 (en) | 2019-07-02 | 2024-01-16 | Reald Spark, Llc | Directional display apparatus |
US11733578B2 (en) | 2019-11-13 | 2023-08-22 | ReaID Spark, LLC | Display device with uniform off-axis luminance reduction |
US11796828B2 (en) | 2019-12-10 | 2023-10-24 | Reald Spark, Llc | Control of reflections of a display device |
US11668963B2 (en) | 2020-04-30 | 2023-06-06 | Reald Spark, Llc | Directional display apparatus |
US11740496B2 (en) | 2020-07-29 | 2023-08-29 | Reald Spark, Llc | Pupillated illumination apparatus |
US12013603B2 (en) | 2020-07-29 | 2024-06-18 | ReaID Spark, LLC | Pupillated illumination apparatus |
US11624944B2 (en) | 2020-07-29 | 2023-04-11 | Reald Spark, Llc | Backlight for switchable directional display |
US11892717B2 (en) | 2021-09-30 | 2024-02-06 | Reald Spark, Llc | Marks for privacy display |
US11921367B2 (en) | 2021-09-30 | 2024-03-05 | Reald Spark, Llc | Marks for privacy display |
US11977286B2 (en) | 2022-02-09 | 2024-05-07 | Reald Spark, Llc | Observer-tracked privacy display |
US11892718B2 (en) | 2022-04-07 | 2024-02-06 | Reald Spark, Llc | Directional display apparatus |
Also Published As
Publication number | Publication date |
---|---|
US20100188617A1 (en) | 2010-07-29 |
JP4928608B2 (ja) | 2012-05-09 |
CN101681577A (zh) | 2010-03-24 |
JPWO2009011199A1 (ja) | 2010-09-16 |
CN101681577B (zh) | 2011-08-24 |
US8098350B2 (en) | 2012-01-17 |
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