EP4743709A1 - Illuminated board and illuminated board arrangement - Google Patents

Illuminated board and illuminated board arrangement

Info

Publication number
EP4743709A1
EP4743709A1 EP23748944.8A EP23748944A EP4743709A1 EP 4743709 A1 EP4743709 A1 EP 4743709A1 EP 23748944 A EP23748944 A EP 23748944A EP 4743709 A1 EP4743709 A1 EP 4743709A1
Authority
EP
European Patent Office
Prior art keywords
illuminated board
arrangement
illuminated
board
board arrangement
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.)
Pending
Application number
EP23748944.8A
Other languages
German (de)
French (fr)
Inventor
Shuangju Wei
Qiang Wang
Ye Shen
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.)
Harman International Industries Inc
Original Assignee
Harman International Industries Inc
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 Harman International Industries Inc filed Critical Harman International Industries Inc
Publication of EP4743709A1 publication Critical patent/EP4743709A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
EP23748944.8A 2023-07-13 2023-07-13 Illuminated board and illuminated board arrangement Pending EP4743709A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/107213 WO2025010713A1 (en) 2023-07-13 2023-07-13 Lighting panel and lighting panel assembly

Publications (1)

Publication Number Publication Date
EP4743709A1 true EP4743709A1 (en) 2026-05-20

Family

ID=87553805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23748944.8A Pending EP4743709A1 (en) 2023-07-13 2023-07-13 Illuminated board and illuminated board arrangement

Country Status (3)

Country Link
EP (1) EP4743709A1 (en)
CN (1) CN121511376A (en)
WO (1) WO2025010713A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4023079B2 (en) * 2000-08-31 2007-12-19 株式会社日立製作所 Planar illumination device and display device including the same
JP4909866B2 (en) * 2007-10-10 2012-04-04 富士フイルム株式会社 Surface lighting device
US8194206B2 (en) * 2008-05-25 2012-06-05 Citizen Electronics Co., Ltd. Planar light-emitting device and liquid crystal display apparatus
US8506151B2 (en) * 2010-09-02 2013-08-13 Lg Innotek Co., Ltd. Backlight unit
KR20130018015A (en) * 2011-08-12 2013-02-20 삼성디스플레이 주식회사 Backlight assembly
WO2014026923A1 (en) * 2012-08-13 2014-02-20 Bayer Materialscience Ag Light guide plate comprising decoupling elements
CN115220265B (en) * 2022-07-20 2023-11-10 福州大学 Backlight module containing annular light guide ring

Also Published As

Publication number Publication date
CN121511376A (en) 2026-02-10
WO2025010713A1 (en) 2025-01-16

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Legal Events

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