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WO2007118122A3 - Anti-snooping sheet and display device comprising the same - Google Patents

Anti-snooping sheet and display device comprising the same Download PDF

Info

Publication number
WO2007118122A3
WO2007118122A3 PCT/US2007/065965 US2007065965W WO2007118122A3 WO 2007118122 A3 WO2007118122 A3 WO 2007118122A3 US 2007065965 W US2007065965 W US 2007065965W WO 2007118122 A3 WO2007118122 A3 WO 2007118122A3
Authority
WO
WIPO (PCT)
Prior art keywords
louver
layer
sheet
snooping
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/US2007/065965
Other languages
French (fr)
Other versions
WO2007118122A2 (en
Inventor
Koji Hishitani
Hiroshi Ooshima
Tokutaro Hara
Norikazu Maeda
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of WO2007118122A2 publication Critical patent/WO2007118122A2/en
Publication of WO2007118122A3 publication Critical patent/WO2007118122A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/006—Systems in which light light is reflected on a plurality of parallel surfaces, e.g. louvre mirrors, total internal reflection [TIR] lenses
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20—Automatic teller machines [ATMs]
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
    • G07F19/20—Automatic teller machines [ATMs]
    • G07F19/205—Housing aspects of ATMs
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

In one embodiment, the present invention provides an anti-snooping sheet comprising a first louver layer, a second louver layer and a prism layer capable of directing incident light. The first louver layer and the second louver layer each comprises a plurality of louvers extending in parallel to each other at predetermined intervals. The extending direction of the louver of the first louver layer intersects with the extending direction of the louver of the second louver layer. The prism layer comprises a plurality of prism elements extending in parallel to each other and causes the light incident in the direction perpendicular to the sheet to exit at a tilt of 15° to 25°.
PCT/US2007/065965 2006-04-07 2007-04-04 Anti-snooping sheet and display device comprising the same Ceased WO2007118122A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-106231 2006-04-07
JP2006106231A JP2007279424A (en) 2006-04-07 2006-04-07 Privacy filter sheet and display device containing the same

Publications (2)

Publication Number Publication Date
WO2007118122A2 WO2007118122A2 (en) 2007-10-18
WO2007118122A3 true WO2007118122A3 (en) 2007-12-13

Family

ID=38581808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/065965 Ceased WO2007118122A2 (en) 2006-04-07 2007-04-04 Anti-snooping sheet and display device comprising the same

Country Status (2)

Country Link
JP (1) JP2007279424A (en)
WO (1) WO2007118122A2 (en)

Families Citing this family (41)

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JP2009122176A (en) 2007-11-12 2009-06-04 Dainippon Printing Co Ltd Optical sheet and display device including the optical sheet
TWI403788B (en) * 2008-09-24 2013-08-01 Data Image Corp Anti-glare paste method, paste the device and attached with anti-glare film display
KR101728177B1 (en) 2009-02-06 2017-04-18 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Light control film and multi-layer optical film stack
JP4756099B2 (en) 2009-03-18 2011-08-24 日東電工株式会社 Light diffusing element, polarizing plate with light diffusing element, liquid crystal display device using these, and method of manufacturing light diffusing element
JP5429455B2 (en) * 2009-04-23 2014-02-26 日本電気株式会社 Visible angle limiting display device, visible angle limiting film structure, and portable device
WO2011065490A1 (en) 2009-11-30 2011-06-03 日東電工株式会社 Liquid crystal display device
EP2550155B1 (en) 2010-03-25 2020-11-04 3M Innovative Properties Company Composite layer
US9327429B2 (en) 2010-03-25 2016-05-03 3M Innovative Properties Company Extrusion die element, extrusion die and method for making multiple stripe extrudate
US20110244187A1 (en) * 2010-04-06 2011-10-06 Modilis Holdings Llc Internal Cavity Optics
US9041885B2 (en) 2010-06-10 2015-05-26 3M Innovative Properties Company Display device and method of LC panel protection
JP6275935B2 (en) 2010-09-17 2018-02-07 日東電工株式会社 Light diffusing element, polarizing plate with light diffusing element, and liquid crystal display using the same
JP6275934B2 (en) 2010-09-17 2018-02-07 日東電工株式会社 Light diffusing element, polarizing plate with light diffusing element, polarizing element, and liquid crystal display using the same
US20120319956A1 (en) * 2011-06-16 2012-12-20 Verifone, Inc. Eavesdropping resistant touchscreen system
FR2978267A1 (en) 2011-07-18 2013-01-25 St Microelectronics Rousset METHOD AND DEVICE FOR CONTROLLING AN APPARATUS BASED ON THE DETECTION OF PERSONS NEAR THE DEVICE
JP5919952B2 (en) * 2012-03-29 2016-05-18 大日本印刷株式会社 Sheet coil, optical sheet, manufacturing method thereof, and manufacturing method of display device
JP5667258B1 (en) * 2013-08-12 2015-02-12 Ｎｅｃプラットフォームズ株式会社 Structure
KR102053442B1 (en) * 2013-10-22 2019-12-06 엘지디스플레이 주식회사 Optical sheet and liquid crystal display device comprising the same
DE102014206611A1 (en) 2014-04-04 2015-10-08 Bastian Humberg Protective sleeve made of shrink film for electronic devices
US20160011346A1 (en) * 2014-07-14 2016-01-14 Sergiy Vasylyev High incidence angle retroreflective sheeting
JP6624714B2 (en) * 2015-05-29 2019-12-25 信越ポリマー株式会社 Light transmission direction control sheet, lighting device and light sensor device
CN105204099B (en) * 2015-09-21 2017-12-19 东莞市纳利光学材料有限公司 Peep-proof brightness enhancement film and preparation method thereof
CN108369301B (en) 2015-12-09 2021-02-05 3M创新有限公司 Optical stack
KR101928135B1 (en) * 2015-12-31 2018-12-11 서울과학기술대학교 산학협력단 Optical film for display and display device comprising the same
JP6944654B2 (en) * 2016-09-13 2021-10-06 大日本印刷株式会社 Optical member, liquid crystal display device
CN110168443B (en) * 2017-01-04 2022-09-23 3M创新有限公司 Light control film for display components
KR101848196B1 (en) 2017-01-16 2018-04-16 서울과학기술대학교 산학협력단 Optical film and display device using the same
WO2019078695A1 (en) 2017-10-20 2019-04-25 주식회사 엘지화학 Light isolation device
US10996384B2 (en) 2017-10-20 2021-05-04 Lg Chem, Ltd. Optical isolation element
KR102096266B1 (en) * 2017-12-15 2020-04-02 주식회사 엘지화학 Optical isolating device
WO2019117615A1 (en) * 2017-12-15 2019-06-20 주식회사 엘지화학 Optical isolation device
FR3081769B1 (en) 2018-05-31 2023-04-28 Saint Gobain LAMINATED FILTERING STRUCTURE
US20210294003A1 (en) * 2018-08-10 2021-09-23 3M Innovative Properties Company Light control film and method of manufacture thereof
JP7445211B2 (en) * 2019-09-25 2024-03-07 大日本印刷株式会社 Optical sheet and its manufacturing method
CN112209629A (en) * 2020-10-13 2021-01-12 恩利克（浙江）智能装备有限公司 Peep-proof cover plate of folding screen mobile phone and manufacturing method thereof
JP7637528B2 (en) * 2021-02-18 2025-02-28 株式会社ジャパンディスプレイ Lighting equipment
CN112965228B (en) * 2021-03-19 2023-01-31 重庆京东方显示照明有限公司 Anti-peeping film, display panel and display device
JP7481297B2 (en) 2021-06-21 2024-05-10 株式会社デンソー External light guide optical device
US12222597B2 (en) * 2022-08-31 2025-02-11 Lms Co., Ltd. Optical film and electronic device including the same
KR20250097368A (en) * 2023-12-21 2025-06-30 동우 화인켐 주식회사 Optical laminate and sunroof including the same
KR20250097377A (en) * 2023-12-21 2025-06-30 동우 화인켐 주식회사 Optical laminate and sunroof including the same
KR20250097385A (en) * 2023-12-21 2025-06-30 동우 화인켐 주식회사 Optical laminate and sunroof including the same

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US5557433A (en) * 1994-02-28 1996-09-17 Nec Corporation Transmissive liquid crystal display having prism lens film for light illumination and wave lens film for light diffusion
JPH09179107A (en) * 1995-12-22 1997-07-11 Nippon Kayaku Co Ltd Liquid crystal display device
US6609807B2 (en) * 2000-08-07 2003-08-26 Sharp Kabushiki Kaisha Backlight and liquid crystal display device
US20050140885A1 (en) * 2002-07-12 2005-06-30 Leidig Carl F. Optical exposure apparatus and method for aligning a substrate

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JPH0821748A (en) * 1994-07-07 1996-01-23 Nippondenso Co Ltd Display device
JP2004109615A (en) * 2002-09-19 2004-04-08 Three M Innovative Properties Co Analog display device
JP2005084172A (en) * 2003-09-05 2005-03-31 Calsonic Kansei Corp Display unit for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557433A (en) * 1994-02-28 1996-09-17 Nec Corporation Transmissive liquid crystal display having prism lens film for light illumination and wave lens film for light diffusion
JPH09179107A (en) * 1995-12-22 1997-07-11 Nippon Kayaku Co Ltd Liquid crystal display device
US6609807B2 (en) * 2000-08-07 2003-08-26 Sharp Kabushiki Kaisha Backlight and liquid crystal display device
US20050140885A1 (en) * 2002-07-12 2005-06-30 Leidig Carl F. Optical exposure apparatus and method for aligning a substrate

Also Published As

Publication number Publication date
WO2007118122A2 (en) 2007-10-18
JP2007279424A (en) 2007-10-25

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