JP7620452B2 - 面状照明装置 - Google Patents

面状照明装置 Download PDF

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Publication number
JP7620452B2
JP7620452B2 JP2021036327A JP2021036327A JP7620452B2 JP 7620452 B2 JP7620452 B2 JP 7620452B2 JP 2021036327 A JP2021036327 A JP 2021036327A JP 2021036327 A JP2021036327 A JP 2021036327A JP 7620452 B2 JP7620452 B2 JP 7620452B2
Authority
JP
Japan
Prior art keywords
light
guide plate
light guide
entering side
elastic member
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
JP2021036327A
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English (en)
Japanese (ja)
Other versions
JP2022136623A5 (enExample
JP2022136623A (ja
Inventor
和正 安達
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.)
MinebeaMitsumi Inc
Original Assignee
MinebeaMitsumi 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 MinebeaMitsumi Inc filed Critical MinebeaMitsumi Inc
Priority to JP2021036327A priority Critical patent/JP7620452B2/ja
Priority to US17/653,372 priority patent/US11650366B2/en
Priority to CN202210220393.1A priority patent/CN115047555A/zh
Publication of JP2022136623A publication Critical patent/JP2022136623A/ja
Publication of JP2022136623A5 publication Critical patent/JP2022136623A5/ja
Application granted granted Critical
Publication of JP7620452B2 publication Critical patent/JP7620452B2/ja
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
    • 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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • 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
    • 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

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  • 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)
JP2021036327A 2021-03-08 2021-03-08 面状照明装置 Active JP7620452B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021036327A JP7620452B2 (ja) 2021-03-08 2021-03-08 面状照明装置
US17/653,372 US11650366B2 (en) 2021-03-08 2022-03-03 Planar illumination device including a pillar and an elastic member
CN202210220393.1A CN115047555A (zh) 2021-03-08 2022-03-08 面状照明装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021036327A JP7620452B2 (ja) 2021-03-08 2021-03-08 面状照明装置

Publications (3)

Publication Number Publication Date
JP2022136623A JP2022136623A (ja) 2022-09-21
JP2022136623A5 JP2022136623A5 (enExample) 2023-12-18
JP7620452B2 true JP7620452B2 (ja) 2025-01-23

Family

ID=83116089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021036327A Active JP7620452B2 (ja) 2021-03-08 2021-03-08 面状照明装置

Country Status (3)

Country Link
US (1) US11650366B2 (enExample)
JP (1) JP7620452B2 (enExample)
CN (1) CN115047555A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2024048002A1 (enExample) 2022-08-30 2024-03-07

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007194022A (ja) 2006-01-18 2007-08-02 Mitsubishi Electric Corp 面状光源装置
WO2011114598A1 (ja) 2010-03-16 2011-09-22 シャープ株式会社 エッジライト式面状光源装置、及び液晶表示装置
WO2012086509A1 (ja) 2010-12-22 2012-06-28 シャープ株式会社 照明装置、表示装置及びテレビ受信装置
US20150212262A1 (en) 2014-01-29 2015-07-30 Innolux Corporation Backlight module and display comprising the same
WO2017195688A1 (ja) 2016-05-11 2017-11-16 シャープ株式会社 照明装置及び表示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101525839B1 (ko) * 2009-05-25 2015-06-08 삼성전자주식회사 백라이트 유닛 및 그를 구비한 액정표시장치
JP4782232B1 (ja) 2010-04-09 2011-09-28 シャープ株式会社 光源モジュール、及びそれを備えた電子機器
US20130135901A1 (en) * 2010-08-09 2013-05-30 Sharp Kabushiki Kaisha Illumination device and display device
JP2012084303A (ja) * 2010-10-08 2012-04-26 Sharp Corp 光源モジュールおよび電子機器
JP2012084304A (ja) * 2010-10-08 2012-04-26 Sharp Corp 光源モジュールおよび電子機器
JP6242723B2 (ja) 2014-03-14 2017-12-06 日本精機株式会社 照明装置及び表示装置
US9759851B2 (en) * 2015-04-01 2017-09-12 Microsoft Technology Licensing, Llc Thermal expansion compensated backlight illumination

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007194022A (ja) 2006-01-18 2007-08-02 Mitsubishi Electric Corp 面状光源装置
WO2011114598A1 (ja) 2010-03-16 2011-09-22 シャープ株式会社 エッジライト式面状光源装置、及び液晶表示装置
WO2012086509A1 (ja) 2010-12-22 2012-06-28 シャープ株式会社 照明装置、表示装置及びテレビ受信装置
US20150212262A1 (en) 2014-01-29 2015-07-30 Innolux Corporation Backlight module and display comprising the same
WO2017195688A1 (ja) 2016-05-11 2017-11-16 シャープ株式会社 照明装置及び表示装置

Also Published As

Publication number Publication date
US11650366B2 (en) 2023-05-16
CN115047555A (zh) 2022-09-13
JP2022136623A (ja) 2022-09-21
US20220283361A1 (en) 2022-09-08

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