FR3062491B1 - Unite de retroeclairage et dispositif d'affichage tete haute - Google Patents

Unite de retroeclairage et dispositif d'affichage tete haute Download PDF

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Publication number
FR3062491B1
FR3062491B1 FR1850526A FR1850526A FR3062491B1 FR 3062491 B1 FR3062491 B1 FR 3062491B1 FR 1850526 A FR1850526 A FR 1850526A FR 1850526 A FR1850526 A FR 1850526A FR 3062491 B1 FR3062491 B1 FR 3062491B1
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FR
France
Prior art keywords
wall
display device
light
housing
liquid crystal
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
Application number
FR1850526A
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English (en)
Other versions
FR3062491A1 (fr
Inventor
Kenji Yagi
Hidetoshi Mukojima
Naohisa Murata
Naoto Tsubakihara
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.)
Yazaki Corp
Original Assignee
Yazaki 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 Yazaki Corp filed Critical Yazaki Corp
Publication of FR3062491A1 publication Critical patent/FR3062491A1/fr
Application granted granted Critical
Publication of FR3062491B1 publication Critical patent/FR3062491B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/015—Head-up displays characterised by mechanical features involving arrangement aiming to get less bulky devices

Landscapes

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

Abstract

Une unité de rétroéclairage inclut un logement ayant une ouverture dans laquelle est disposé un dispositif d'affichage à cristaux liquides, une source de lumière disposée à l'intérieur du logement, et un organe optique disposé à l'intérieur du logement, pointant un chemin de lumière provenant de la source de lumière vers le dispositif d'affichage à cristaux liquides, et ayant une portion de prisme triangulaire constituée d'un matériau translucide. La portion de prisme comporte une première paroi latérale servant de paroi d'entrée sur laquelle la lumière provenant de la source de lumière est incidente, une autre paroi latérale en tant que paroi de sortie émettant une lumière vers le dispositif d'affichage à cristaux liquides, et encore une autre paroi latérale en tant que paroi réfléchissante réfléchissant la lumière incidente sur la paroi d'entrée vers la paroi de sortie à l'intérieur de la portion de prisme.
FR1850526A 2017-01-27 2018-01-23 Unite de retroeclairage et dispositif d'affichage tete haute Active FR3062491B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017012798A JP6533540B2 (ja) 2017-01-27 2017-01-27 バックライトユニットおよびヘッドアップディスプレイ装置
JP2017012798 2017-01-27

Publications (2)

Publication Number Publication Date
FR3062491A1 FR3062491A1 (fr) 2018-08-03
FR3062491B1 true FR3062491B1 (fr) 2021-12-03

Family

ID=62843304

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1850526A Active FR3062491B1 (fr) 2017-01-27 2018-01-23 Unite de retroeclairage et dispositif d'affichage tete haute

Country Status (5)

Country Link
US (1) US10114219B2 (fr)
JP (1) JP6533540B2 (fr)
CN (1) CN108363239B (fr)
DE (1) DE102018201002B4 (fr)
FR (1) FR3062491B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11181738B2 (en) * 2018-11-14 2021-11-23 Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America Rotationally adjustable head up display
CN110308588B (zh) * 2019-06-28 2022-02-25 厦门天马微电子有限公司 一种背光模组及显示装置
JP7309774B2 (ja) 2021-04-07 2023-07-18 矢崎総業株式会社 車両用表示装置
EP4071541B1 (fr) 2021-04-07 2024-03-06 Yazaki Corporation Afficheur de véhicule
FR3140680B1 (fr) * 2022-10-05 2024-09-27 Valeo Comfort & Driving Assistance Afficheur tête-haute

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672185A (ja) * 1992-06-26 1994-03-15 Yazaki Corp 車両用表示装置
JP3461297B2 (ja) * 1999-03-04 2003-10-27 キヤノン株式会社 画像観察装置
EP1089111B1 (fr) * 1999-04-02 2005-03-30 Olympus Corporation Systeme optique de visualisation et afficheur d'image contenant ce systeme
JP2002228970A (ja) 2001-02-05 2002-08-14 Mixed Reality Systems Laboratory Inc 光学系及びそれを用いた画像表示装置
JP4154876B2 (ja) * 2001-08-03 2008-09-24 カシオ計算機株式会社 照明パネルおよびそれを用いた表示装置
JP3488223B2 (ja) * 2001-10-22 2004-01-19 オリンパス株式会社 偏心光学系
CN2613781Y (zh) * 2003-03-01 2004-04-28 鸿富锦精密工业（深圳）有限公司 背光装置
WO2010064582A1 (fr) * 2008-12-04 2010-06-10 コニカミノルタホールディングス株式会社 Dispositif d'affichage vidéo et visiocasque
JP5553077B2 (ja) * 2012-03-15 2014-07-16 オムロン株式会社 面光源装置
US20130258708A1 (en) * 2012-04-01 2013-10-03 Shenzhen China str Optoelectronics Technology Co., LTD. Backlight Module
JP6248473B2 (ja) * 2013-08-28 2017-12-20 日本精機株式会社 ヘッドアップディスプレイ装置
CN103542332A (zh) * 2013-10-28 2014-01-29 惠州Tcl移动通信有限公司 一种手机及其侧入式背光模组
CN104100924B (zh) * 2013-11-26 2016-04-13 深圳市华星光电技术有限公司 背光模组及使用该背光模组的背光系统
JP2016065907A (ja) 2014-09-24 2016-04-28 日本精機株式会社 ヘッドアップディスプレイ装置
KR102318262B1 (ko) * 2015-03-11 2021-10-27 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시 장치
WO2017175517A1 (fr) * 2016-04-05 2017-10-12 日立マクセル株式会社 Appareil de source lumineuse et appareil électronique l'utilisant
JP6854590B2 (ja) * 2016-04-05 2021-04-07 マクセル株式会社 光源装置およびそれを利用した電子装置

Also Published As

Publication number Publication date
CN108363239A (zh) 2018-08-03
DE102018201002A1 (de) 2018-08-02
JP2018120807A (ja) 2018-08-02
FR3062491A1 (fr) 2018-08-03
JP6533540B2 (ja) 2019-06-19
DE102018201002B4 (de) 2022-12-08
CN108363239B (zh) 2021-07-02
US10114219B2 (en) 2018-10-30
US20180217376A1 (en) 2018-08-02

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