TWI653472B - 背光單元用棱鏡片及液晶顯示裝置用背光單元 - Google Patents

背光單元用棱鏡片及液晶顯示裝置用背光單元 Download PDF

Info

Publication number
TWI653472B
TWI653472B TW106119826A TW106119826A TWI653472B TW I653472 B TWI653472 B TW I653472B TW 106119826 A TW106119826 A TW 106119826A TW 106119826 A TW106119826 A TW 106119826A TW I653472 B TWI653472 B TW I653472B
Authority
TW
Taiwan
Prior art keywords
linear grooves
prism
prism sheet
fine linear
backlight unit
Prior art date
Application number
TW106119826A
Other languages
English (en)
Chinese (zh)
Other versions
TW201809736A (zh
Inventor
原田賢一
波川啓土
福田忠仁
松野有希
Original Assignee
惠和股份有限公司
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 惠和股份有限公司 filed Critical 惠和股份有限公司
Publication of TW201809736A publication Critical patent/TW201809736A/zh
Application granted granted Critical
Publication of TWI653472B publication Critical patent/TWI653472B/zh

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
    • G02B6/0033—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

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)
  • Optical Elements Other Than Lenses (AREA)
TW106119826A 2016-06-14 2017-06-14 背光單元用棱鏡片及液晶顯示裝置用背光單元 TWI653472B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016118261 2016-06-14
JP2016-118261 2016-06-14
JP2017096292A JP7214334B2 (ja) 2016-06-14 2017-05-15 バックライトユニット用プリズムシート及び液晶表示装置用バックライトユニット
JP2017-096292 2017-05-15

Publications (2)

Publication Number Publication Date
TW201809736A TW201809736A (zh) 2018-03-16
TWI653472B true TWI653472B (zh) 2019-03-11

Family

ID=60688428

Family Applications (1)

Application Number Title Priority Date Filing Date
TW106119826A TWI653472B (zh) 2016-06-14 2017-06-14 背光單元用棱鏡片及液晶顯示裝置用背光單元

Country Status (4)

Country Link
JP (1) JP7214334B2 (ja)
KR (1) KR101986761B1 (ja)
CN (1) CN107515437B (ja)
TW (1) TWI653472B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11415833B1 (en) 2021-03-09 2022-08-16 Innolux Corporation Backlight module and display device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001143515A (ja) * 1999-09-03 2001-05-25 Mitsubishi Rayon Co Ltd プリズムシートおよび面光源素子
AU7586801A (en) * 2000-07-11 2002-01-21 3M Innovative Properties Co Backlight with structured sufaces
JP4170084B2 (ja) * 2002-12-04 2008-10-22 三菱電機株式会社 面状光源装置及び表示装置
US7672051B2 (en) * 2003-05-22 2010-03-02 Hitachi Chemical Co., Ltd. Optical film and surface light source using it
JP4781797B2 (ja) 2005-11-29 2011-09-28 株式会社 日立ディスプレイズ 液晶表示装置
JP4695509B2 (ja) * 2005-12-28 2011-06-08 三菱レイヨン株式会社 光拡散フィルム及びそれを用いた複合光学素子
KR101286491B1 (ko) * 2006-07-10 2013-07-16 삼성디스플레이 주식회사 도광판과 이를 포함하는 액정표시장치
JP2008145468A (ja) * 2006-12-06 2008-06-26 Gamma Optical Co Ltd 光学薄膜、及び、光学薄膜を応用したバックライトモジュール
WO2008090821A1 (ja) * 2007-01-24 2008-07-31 Toray Industries, Inc. 拡散シートおよびそれを用いたバックライトユニット
JP2008238610A (ja) * 2007-03-28 2008-10-09 Nippon Zeon Co Ltd 金型部品および光拡散板
JPWO2010010840A1 (ja) * 2008-07-22 2012-01-05 日本ゼオン株式会社 光拡散板、光拡散板の製造方法、面光源装置、及び表示装置
JP2010072630A (ja) * 2008-08-18 2010-04-02 Daicel Chem Ind Ltd 光制御シート及びそれを備えた面光源装置
JP5614128B2 (ja) * 2010-06-30 2014-10-29 凸版印刷株式会社 光学シート、バックライトユニット及びディスプレイ装置
JP2012063670A (ja) * 2010-09-17 2012-03-29 Hitachi Displays Ltd 液晶表示装置
US9784902B2 (en) * 2013-03-25 2017-10-10 3M Innovative Properties Company Dual-sided film with split light spreading structures
JP6079602B2 (ja) * 2013-12-13 2017-02-15 王子ホールディングス株式会社 導光板

Also Published As

Publication number Publication date
KR101986761B1 (ko) 2019-06-10
TW201809736A (zh) 2018-03-16
KR20170141137A (ko) 2017-12-22
JP7214334B2 (ja) 2023-01-30
JP2017223937A (ja) 2017-12-21
CN107515437A (zh) 2017-12-26
CN107515437B (zh) 2020-03-24

Similar Documents

Publication Publication Date Title
JP6683872B1 (ja) 光学シート、バックライトユニット、液晶表示装置及び情報機器
JP6647761B2 (ja) 上用光拡散シート及びバックライトユニット
KR101629887B1 (ko) 광학 시트 및 이를 구비한 백라이트 유닛
US8786951B2 (en) Composite optical film
KR102105135B1 (ko) 완충 시트 및 플랫 패널 디스플레이
TWI684049B (zh) 液晶顯示裝置用光擴散片及液晶顯示裝置用背光單元
US10466405B2 (en) Prism sheet for backlight unit and backlight unit for liquid crystal display device
JP5330457B2 (ja) 面光源装置及び液晶表示装置
JP2010210882A (ja) 光学シート及びそれを用いたディスプレイ装置
KR20190128731A (ko) 상부용 광 확산 시트 및 그를 구비한 백라이트 유닛
JP5820609B2 (ja) 面光源装置及び液晶表示装置
KR102097667B1 (ko) 백라이트 유닛용 광학 시트 및 백라이트 유닛
TWI653472B (zh) 背光單元用棱鏡片及液晶顯示裝置用背光單元
JP2023165732A (ja) 光拡散シート、バックライトユニット、液晶表示装置、情報機器、及び光拡散シートの製造方法
WO2017104677A1 (ja) バックライトユニット用光学シート及びバックライトユニット
JP2017207703A (ja) 光学ユニット及び光学ユニットの製造方法
JP2004145329A (ja) 光学シート及びこれを用いたバックライトユニット
JP7368430B2 (ja) 光拡散シート、バックライトユニット、液晶表示装置、情報機器、及び光拡散シートの製造方法
JP7389296B1 (ja) 光拡散シート、バックライトユニット、液晶表示装置、情報機器、及び光拡散シートの製造方法
WO2023228684A1 (ja) 光拡散シート、バックライトユニット、液晶表示装置、及び情報機器
TW201910889A (zh) 緩衝片及平板顯示器
JP2017106987A (ja) 光拡散シート及びバックライトユニット
WO2023162358A1 (ja) 複合光拡散シート、バックライトユニット、液晶表示装置、及び情報機器
JP2023174543A (ja) 光拡散シート、バックライトユニット、液晶表示装置、及び情報機器
JP2024072830A (ja) 光拡散シート、バックライトユニット、液晶表示装置、及び情報機器