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FR3132577B1 - Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés - Google Patents

Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés Download PDF

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Publication number
FR3132577B1
FR3132577B1 FR2201106A FR2201106A FR3132577B1 FR 3132577 B1 FR3132577 B1 FR 3132577B1 FR 2201106 A FR2201106 A FR 2201106A FR 2201106 A FR2201106 A FR 2201106A FR 3132577 B1 FR3132577 B1 FR 3132577B1
Authority
FR
France
Prior art keywords
head
manufacturing
display
component
image generating
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
FR2201106A
Other languages
English (en)
Other versions
FR3132577A1 (fr
Inventor
Nachouane Ayoub Ben
Alexis Kleckner
Arnaud Husson
Guyader Delphine Le
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.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Comfort and Driving Assistance SAS
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 Valeo Comfort and Driving Assistance SAS filed Critical Valeo Comfort and Driving Assistance SAS
Priority to FR2201106A priority Critical patent/FR3132577B1/fr
Priority to CN202380020994.0A priority patent/CN118696265A/zh
Priority to EP23701881.7A priority patent/EP4476589A1/fr
Priority to PCT/EP2023/051452 priority patent/WO2023151925A1/fr
Priority to US18/836,641 priority patent/US20250138311A1/en
Publication of FR3132577A1 publication Critical patent/FR3132577A1/fr
Application granted granted Critical
Publication of FR3132577B1 publication Critical patent/FR3132577B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • 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
    • 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
    • G02F1/1313—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 specially adapted for a particular application
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • 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
    • G02F1/133536—Reflective polarizers

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)
  • Instrument Panels (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L’invention porte sur un dispositif de rétroéclairage (10) comprenant :- une source de lumière (14) configurée pour émettre un faisceau source,- un réflecteur (15) configuré pour réfléchir une partie au moins du faisceau source en un faisceau réfléchi,- un composant (16) formé d’un seul tenant comprenant, sur une première face, un polariseur réflectif (17) et, sur une seconde face opposée à la première face, un diffuseur optique (18), ledit composant (16) étant configuré pour recevoir et transmettre une partie au moins du faisceau réfléchi,caractérisé en ce que la première face du composant (16) est placée du côté de la source de lumière (14). L’invention porte également sur un dispositif de génération d’images, un afficheur tête-haute et un procédé de fabrication pour un composant (16) pour dispositif de rétroéclairage (10). Figure pour l’abrégé : Fig. 2
FR2201106A 2022-02-08 2022-02-08 Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés Active FR3132577B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2201106A FR3132577B1 (fr) 2022-02-08 2022-02-08 Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés
CN202380020994.0A CN118696265A (zh) 2022-02-08 2023-01-20 背光设备和相关图像生成设备、平视显示器以及制造方法
EP23701881.7A EP4476589A1 (fr) 2022-02-08 2023-01-20 Dispositif de rétroéclairage, dispositif de génération d'images, afficheur tête haute et procédé de fabrication associés
PCT/EP2023/051452 WO2023151925A1 (fr) 2022-02-08 2023-01-20 Dispositif de rétroéclairage, dispositif de génération d'images, afficheur tête haute et procédé de fabrication associés
US18/836,641 US20250138311A1 (en) 2022-02-08 2023-01-20 Backlight device and associated image generation device, head-up display, and manufacturing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2201106 2022-02-08
FR2201106A FR3132577B1 (fr) 2022-02-08 2022-02-08 Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés

Publications (2)

Publication Number Publication Date
FR3132577A1 FR3132577A1 (fr) 2023-08-11
FR3132577B1 true FR3132577B1 (fr) 2024-09-27

Family

ID=81580611

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2201106A Active FR3132577B1 (fr) 2022-02-08 2022-02-08 Dispositif de rétroéclairage, dispositif de génération d’images, afficheur tête haute et procédé de fabrication associés

Country Status (5)

Country Link
US (1) US20250138311A1 (fr)
EP (1) EP4476589A1 (fr)
CN (1) CN118696265A (fr)
FR (1) FR3132577B1 (fr)
WO (1) WO2023151925A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201304114D0 (en) * 2013-03-07 2013-04-24 The Technology Partnership Plc Embedded diffuser structure
FR3020178B1 (fr) * 2014-04-17 2017-10-06 Valeo Comfort & Driving Assistance Dispositif de retroeclairage notamment pour afficheur tete haute et afficheur tete haute pour vehicule automobile

Also Published As

Publication number Publication date
FR3132577A1 (fr) 2023-08-11
CN118696265A (zh) 2024-09-24
EP4476589A1 (fr) 2024-12-18
US20250138311A1 (en) 2025-05-01
WO2023151925A1 (fr) 2023-08-17

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