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WO2009008406A1 - 視野角制御素子およびこれを備えた表示装置 - Google Patents

視野角制御素子およびこれを備えた表示装置 Download PDF

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Publication number
WO2009008406A1
WO2009008406A1 PCT/JP2008/062282 JP2008062282W WO2009008406A1 WO 2009008406 A1 WO2009008406 A1 WO 2009008406A1 JP 2008062282 W JP2008062282 W JP 2008062282W WO 2009008406 A1 WO2009008406 A1 WO 2009008406A1
Authority
WO
WIPO (PCT)
Prior art keywords
view angle
liquid crystal
angle control
film
display device
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.)
Ceased
Application number
PCT/JP2008/062282
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English (en)
French (fr)
Inventor
Koji Yabuta
Tomoo Takatani
Hiroshi Fukushima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to US12/600,919 priority Critical patent/US20100149459A1/en
Priority to CN2008800164945A priority patent/CN101681061B/zh
Publication of WO2009008406A1 publication Critical patent/WO2009008406A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/133633—Birefringent elements, e.g. for optical compensation using mesogenic materials
    • 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
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
    • 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
    • G02F2413/04—Number of plates greater than or equal to 4
    • 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
    • G02F2413/07—All plates on one side of the LC cell
    • 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
    • G02F2413/08—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 with a particular optical axis orientation
    • 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
    • G02F2413/10—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 with refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate
    • G02F2413/105—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 with refractive index ellipsoid inclined, or tilted, relative to the LC-layer surface O plate with varying inclination in thickness direction, e.g. hybrid oriented discotic LC

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

　正面から見たときの画質（正面品位）を低下させることなく視野角を制限することができる視野角制御素子と、それを備えた表示装置とを提供する。液晶表示装置（１）は、液晶パネル（１０）と、液晶パネル（１０）の視野角を制御する視野角制御フィルム（２０）とを備える。視野角制御フィルム（２０）は、液晶フィルム（２１）と直線偏光板（２２）とを少なくとも有する積層フィルムである。液晶フィルム（２１）は、液晶分子が、その長軸をフィルム表面の法線方向から所定の方位角方向に傾けて配列した状態で固化されている。視野角制御フィルム（２０）の直線偏光板（２２）と、液晶パネル（１０）の直線偏光板（１４）は、その偏光透過軸が、法線方向から見た場合に、前記液晶分子の長軸方向と交差するように配置されている。
PCT/JP2008/062282 2007-07-09 2008-07-07 視野角制御素子およびこれを備えた表示装置 Ceased WO2009008406A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/600,919 US20100149459A1 (en) 2007-07-09 2008-07-07 View angle control element and display device provided with the same
CN2008800164945A CN101681061B (zh) 2007-07-09 2008-07-07 视野角控制元件和具备其的显示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-180125 2007-07-09
JP2007180125 2007-07-09

Publications (1)

Publication Number Publication Date
WO2009008406A1 true WO2009008406A1 (ja) 2009-01-15

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Country Status (3)

Country Link
US (1) US20100149459A1 (ja)
CN (1) CN101681061B (ja)
WO (1) WO2009008406A1 (ja)

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WO2011035418A1 (en) * 2009-09-23 2011-03-31 Peter Dobrich Enhanced display
US20110267561A1 (en) * 2009-05-15 2011-11-03 Sharp Kabushiki Kaisha Display device
JP2013257529A (ja) * 2012-05-18 2013-12-26 Sharp Corp 光学システム
JP2020520473A (ja) * 2017-05-08 2020-07-09 リアルディー スパーク エルエルシー 指向性ディスプレイ用の光学積層体
US11340482B2 (en) 2020-07-29 2022-05-24 Reald Spark, Llc Pupillated illumination apparatus
US11353752B2 (en) 2020-04-30 2022-06-07 Reald Spark, Llc Directional display apparatus
US11431960B2 (en) 2017-11-06 2022-08-30 Reald Spark, Llc Privacy display apparatus
US11462193B2 (en) 2019-10-02 2022-10-04 Reald Spark, Llc Privacy display apparatus
US11474396B2 (en) 2017-09-15 2022-10-18 Reald Spark, Llc Optical stack for switchable directional display
US11506939B2 (en) 2020-04-30 2022-11-22 Reald Spark, Llc Directional display apparatus
US11573437B2 (en) 2019-07-02 2023-02-07 Reald Spark, Llc Directional display apparatus
US11573439B2 (en) 2019-01-07 2023-02-07 Reald Spark, Llc Optical stack for privacy display
US11586073B2 (en) 2019-02-12 2023-02-21 Reald Spark, Llc Diffuser for privacy display
US11604311B2 (en) 2018-03-22 2023-03-14 Reald Spark, Llc Optical waveguide for directional backlight
US11624944B2 (en) 2020-07-29 2023-04-11 Reald Spark, Llc Backlight for switchable directional display
US11630336B2 (en) 2018-01-25 2023-04-18 Reald Spark, Llc Reflective optical stack for privacy 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
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
US11809052B2 (en) 2018-06-29 2023-11-07 Reald Spark, Llc Stabilization for privacy display
US11892717B2 (en) 2021-09-30 2024-02-06 Reald Spark, Llc Marks for privacy display
US11892718B2 (en) 2022-04-07 2024-02-06 Reald Spark, Llc Directional display apparatus
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
US12140847B2 (en) 2018-10-03 2024-11-12 ReaID Spark, LLC Display apparatus using application software context for privacy control
US12169339B2 (en) 2018-01-25 2024-12-17 Reald Spark, Llc Touch screen for privacy display
US12253748B2 (en) 2023-04-25 2025-03-18 Reald Spark, Llc Switchable privacy display
US12366701B2 (en) 2017-05-08 2025-07-22 Reald Spark, Llc Optical stack for imaging directional backlights
US12392949B2 (en) 2016-05-19 2025-08-19 Reald Spark, Llc Wide angle imaging directional backlights
US12393066B2 (en) 2023-08-03 2025-08-19 Reald Spark, Llc Privacy displays

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TWI428675B (zh) * 2011-05-19 2014-03-01 Au Optronics Corp 顯示裝置
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KR20150137217A (ko) * 2014-05-28 2015-12-09 삼성디스플레이 주식회사 액정표시장치
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TWI606286B (zh) * 2016-05-24 2017-11-21 揚昇照明股份有限公司 複合膜以及顯示裝置
TWM537663U (zh) 2016-10-25 2017-03-01 揚昇照明股份有限公司 視角控制裝置以及可控制視角顯示裝置
TWI605287B (zh) * 2016-12-29 2017-11-11 揚昇照明股份有限公司 顯示裝置
CN108345139B (zh) 2017-01-25 2022-04-22 中强光电股份有限公司 视角可切换显示装置
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US10948648B2 (en) 2017-09-29 2021-03-16 Reald Spark, Llc Backlights having stacked waveguide and optical components with different coefficients of friction
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CN207650518U (zh) 2017-12-26 2018-07-24 扬升照明股份有限公司 视角可切换装置以及视角可切换显示模块
CN208126055U (zh) 2018-04-28 2018-11-20 扬升照明股份有限公司 显示装置
KR102174678B1 (ko) 2018-06-05 2020-11-05 주식회사 엘지화학 액정 표시 장치
TWI690414B (zh) 2018-06-05 2020-04-11 南韓商Ｌｇ化學股份有限公司 層壓板及含彼之液晶顯示器
CN114341681A (zh) 2019-08-02 2022-04-12 瑞尔D斯帕克有限责任公司 用于防窥显示器的光学堆叠
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CN113219711A (zh) * 2021-04-25 2021-08-06 北海惠科光电技术有限公司 显示面板和显示装置
JP2023179938A (ja) * 2022-06-08 2023-12-20 株式会社ジャパンディスプレイ 光学素子及び表示装置

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Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110267561A1 (en) * 2009-05-15 2011-11-03 Sharp Kabushiki Kaisha Display device
WO2011035418A1 (en) * 2009-09-23 2011-03-31 Peter Dobrich Enhanced display
JP2013257529A (ja) * 2012-05-18 2013-12-26 Sharp Corp 光学システム
US12392949B2 (en) 2016-05-19 2025-08-19 Reald Spark, Llc Wide angle imaging directional backlights
JP7204073B2 (ja) 2017-05-08 2023-01-16 リアルディー スパーク エルエルシー 指向性ディスプレイ用の光学積層体
US12366701B2 (en) 2017-05-08 2025-07-22 Reald Spark, Llc Optical stack for imaging directional backlights
JP2020520473A (ja) * 2017-05-08 2020-07-09 リアルディー スパーク エルエルシー 指向性ディスプレイ用の光学積層体
US12066717B2 (en) 2017-09-15 2024-08-20 Reald Spark, Llc Optical stack for switchable directional display
US11474396B2 (en) 2017-09-15 2022-10-18 Reald Spark, Llc Optical stack for switchable directional display
US11474397B2 (en) 2017-09-15 2022-10-18 Reald Spark, Llc Optical stack for switchable directional display
US11431960B2 (en) 2017-11-06 2022-08-30 Reald Spark, Llc Privacy display apparatus
US12038633B2 (en) 2018-01-25 2024-07-16 Reald Spark, Llc Reflective optical stack for privacy display
US11630336B2 (en) 2018-01-25 2023-04-18 Reald Spark, Llc Reflective optical stack for privacy display
US12169339B2 (en) 2018-01-25 2024-12-17 Reald Spark, Llc Touch screen for privacy display
US11808965B2 (en) 2018-03-22 2023-11-07 Reald Spark, Llc Optical waveguide for directional backlight
US11604311B2 (en) 2018-03-22 2023-03-14 Reald Spark, Llc Optical waveguide for directional backlight
US11874576B2 (en) 2018-06-29 2024-01-16 Reald Spark, Llc Optical stack for privacy display
US11809052B2 (en) 2018-06-29 2023-11-07 Reald Spark, Llc Stabilization for privacy display
US11747693B2 (en) 2018-07-18 2023-09-05 Reald Spark, Llc Optical stack for switchable directional display
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