JP2017120740A - 導光板、面光源装置、表示装置、及び電子機器 - Google Patents

導光板、面光源装置、表示装置、及び電子機器 Download PDF

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Publication number
JP2017120740A
JP2017120740A JP2015257405A JP2015257405A JP2017120740A JP 2017120740 A JP2017120740 A JP 2017120740A JP 2015257405 A JP2015257405 A JP 2015257405A JP 2015257405 A JP2015257405 A JP 2015257405A JP 2017120740 A JP2017120740 A JP 2017120740A
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JP
Japan
Prior art keywords
light
guide plate
light guide
exit surface
ridge
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
JP2015257405A
Other languages
English (en)
Japanese (ja)
Other versions
JP2017120740A5 (enExample
Inventor
剛大 倉田
Kodai Kurata
剛大 倉田
隆文 黒川
Takafumi Kurokawa
隆文 黒川
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.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics 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 Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP2015257405A priority Critical patent/JP2017120740A/ja
Priority to US15/781,700 priority patent/US20180373097A1/en
Priority to PCT/JP2016/057633 priority patent/WO2017115472A1/ja
Priority to CN201680071228.7A priority patent/CN108292008A/zh
Priority to KR1020187015628A priority patent/KR20180078304A/ko
Publication of JP2017120740A publication Critical patent/JP2017120740A/ja
Publication of JP2017120740A5 publication Critical patent/JP2017120740A5/ja
Pending legal-status Critical Current

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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
    • G02B6/0033—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
    • G02B6/0045—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 by shaping at least a portion of 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
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along 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
    • G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width 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
    • G02B6/0035—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
    • G02B6/0035—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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide

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)
JP2015257405A 2015-12-28 2015-12-28 導光板、面光源装置、表示装置、及び電子機器 Pending JP2017120740A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2015257405A JP2017120740A (ja) 2015-12-28 2015-12-28 導光板、面光源装置、表示装置、及び電子機器
US15/781,700 US20180373097A1 (en) 2015-12-28 2016-03-10 Light guide plate, surface light source device, display device, and electronic device
PCT/JP2016/057633 WO2017115472A1 (ja) 2015-12-28 2016-03-10 導光板、面光源装置、表示装置、及び電子機器
CN201680071228.7A CN108292008A (zh) 2015-12-28 2016-03-10 导光板、面光源装置、显示装置以及电子设备
KR1020187015628A KR20180078304A (ko) 2015-12-28 2016-03-10 도광판, 면광원 장치, 표시 장치, 및 전자 기기

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015257405A JP2017120740A (ja) 2015-12-28 2015-12-28 導光板、面光源装置、表示装置、及び電子機器

Publications (2)

Publication Number Publication Date
JP2017120740A true JP2017120740A (ja) 2017-07-06
JP2017120740A5 JP2017120740A5 (enExample) 2018-05-24

Family

ID=59225580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015257405A Pending JP2017120740A (ja) 2015-12-28 2015-12-28 導光板、面光源装置、表示装置、及び電子機器

Country Status (5)

Country Link
US (1) US20180373097A1 (enExample)
JP (1) JP2017120740A (enExample)
KR (1) KR20180078304A (enExample)
CN (1) CN108292008A (enExample)
WO (1) WO2017115472A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022515703A (ja) * 2018-10-25 2022-02-22 ラディアント オプト‐エレクトロニクス （スーチョウ） カンパニー リミテッド 導光板、バックライトモジュール及び表示装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102447968B1 (ko) * 2017-10-19 2022-09-27 삼성전자주식회사 디스플레이 장치
CN107817550A (zh) * 2017-12-12 2018-03-20 芜湖德仓光电有限公司 导光板
CN108897167A (zh) * 2018-07-24 2018-11-27 中航华东光电有限公司 一种特种曲面液晶显示用背光模组
WO2020056501A1 (en) * 2018-09-17 2020-03-26 Lumenpulse Group Inc./Groupe Lumenpulse Inc. Wedge-shaped light guides for luminaires and luminaire assemblies incorporating same
CN116774340A (zh) * 2022-03-10 2023-09-19 芜湖美的厨卫电器制造有限公司 导光板及其加工方法、触控显示面板及电器设备

Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2006350338A (ja) * 2005-06-13 2006-12-28 Samsung Electronics Co Ltd バックライトアセンブリとこれを有する表示装置及びその輝度調節方法
JP2010177130A (ja) * 2009-01-30 2010-08-12 Keiwa Inc 導光シート及びこれを用いたバックライトユニット
JP2013191501A (ja) * 2012-03-15 2013-09-26 Omron Corp 面光源装置

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KR20070016512A (ko) * 2005-08-04 2007-02-08 삼성전자주식회사 백라이트 어셈블리 및 이를 갖는 표시 장치
JP2007027099A (ja) * 2005-07-13 2007-02-01 Samsung Electronics Co Ltd バックライトアセンブリ及び表示基板とこれらを有する表示装置、並びに表示基板及びその製造方法
JP4771065B2 (ja) * 2005-09-30 2011-09-14 ゲットナー・ファンデーション・エルエルシー 光源装置、表示装置及び端末装置
GB2476933A (en) * 2010-01-13 2011-07-20 Sharp Kk A tessellated display backlight
JP2012038571A (ja) * 2010-08-06 2012-02-23 Sharp Corp 面光源装置、およびそれを用いた電子機器
JP5556836B2 (ja) * 2012-03-15 2014-07-23 オムロン株式会社 面光源装置
JP5915556B2 (ja) * 2013-01-30 2016-05-11 オムロン株式会社 導光板
KR101596848B1 (ko) * 2015-03-02 2016-02-23 엘지전자 주식회사 디스플레이 패널 및 이동 단말기

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006350338A (ja) * 2005-06-13 2006-12-28 Samsung Electronics Co Ltd バックライトアセンブリとこれを有する表示装置及びその輝度調節方法
JP2010177130A (ja) * 2009-01-30 2010-08-12 Keiwa Inc 導光シート及びこれを用いたバックライトユニット
JP2013191501A (ja) * 2012-03-15 2013-09-26 Omron Corp 面光源装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022515703A (ja) * 2018-10-25 2022-02-22 ラディアント オプト‐エレクトロニクス （スーチョウ） カンパニー リミテッド 導光板、バックライトモジュール及び表示装置
JP7297063B2 (ja) 2018-10-25 2023-06-23 ラディアント オプト‐エレクトロニクス （スーチョウ） カンパニー リミテッド 導光板、バックライトモジュール及び表示装置

Also Published As

Publication number Publication date
KR20180078304A (ko) 2018-07-09
CN108292008A (zh) 2018-07-17
WO2017115472A1 (ja) 2017-07-06
US20180373097A1 (en) 2018-12-27

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