CN115053153B - 光学片、背光单元、液晶显示装置及信息设备 - Google Patents

光学片、背光单元、液晶显示装置及信息设备 Download PDF

Info

Publication number
CN115053153B
CN115053153B CN202180013083.6A CN202180013083A CN115053153B CN 115053153 B CN115053153 B CN 115053153B CN 202180013083 A CN202180013083 A CN 202180013083A CN 115053153 B CN115053153 B CN 115053153B
Authority
CN
China
Prior art keywords
optical sheet
light sources
concave
liquid crystal
luminance
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
CN202180013083.6A
Other languages
English (en)
Chinese (zh)
Other versions
CN115053153A (zh
Inventor
蔡承亨
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.)
Keiwa Inc
Original Assignee
Keiwa 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
Priority claimed from JP2020204935A external-priority patent/JP7037624B2/ja
Application filed by Keiwa Inc filed Critical Keiwa Inc
Publication of CN115053153A publication Critical patent/CN115053153A/zh
Application granted granted Critical
Publication of CN115053153B publication Critical patent/CN115053153B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/14—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing polarised light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • 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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133602—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
CN202180013083.6A 2020-03-30 2021-02-16 光学片、背光单元、液晶显示装置及信息设备 Active CN115053153B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2020-059508 2020-03-30
JP2020059508 2020-03-30
JP2020-204935 2020-12-10
JP2020204935A JP7037624B2 (ja) 2020-03-30 2020-12-10 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
PCT/JP2021/005710 WO2021199741A1 (ja) 2020-03-30 2021-02-16 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

Publications (2)

Publication Number Publication Date
CN115053153A CN115053153A (zh) 2022-09-13
CN115053153B true CN115053153B (zh) 2024-09-10

Family

ID=77929701

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180013083.6A Active CN115053153B (zh) 2020-03-30 2021-02-16 光学片、背光单元、液晶显示装置及信息设备

Country Status (6)

Country Link
US (1) US12105376B2 (https=)
JP (2) JP7509808B2 (https=)
KR (1) KR20220123124A (https=)
CN (1) CN115053153B (https=)
TW (1) TWI790561B (https=)
WO (1) WO2021199741A1 (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102889437B1 (ko) * 2021-10-29 2025-11-21 유브라이트 옵트로닉스 코포레이션 광학 필름 및 그의 제조 방법
US20230288609A1 (en) * 2021-10-29 2023-09-14 Ubright Optronics Corporation Optical structure and the method to make the same
CN116343584B (zh) * 2021-12-22 2025-10-28 瑞轩科技股份有限公司 显示器的背光模块
JP7429248B2 (ja) * 2022-01-28 2024-02-07 恵和株式会社 光学シート積層体、バックライトユニット、液晶表示装置、情報機器、及びバックライトユニットの製造方法
JP2023164344A (ja) * 2022-04-28 2023-11-10 恵和株式会社 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
EP4717972A3 (en) * 2022-04-28 2026-04-08 KEIWA Incorporated Light diffusion sheet, backlight unit, liquid crystal display device, and information equipment
KR20230161367A (ko) * 2022-05-18 2023-11-27 유브라이트 옵트로닉스 코포레이션 광학 구조체 및 그의 제조 방법
KR102815420B1 (ko) * 2022-07-19 2025-06-02 주식회사 창강화학 광학 필름 및 이를 포함하는 백라이트 유닛
EP4703777A1 (en) * 2023-04-28 2026-03-04 Keiwa Incorporated Light diffusion sheet, backlight unit, liquid crystal display device, and information apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002357706A (ja) * 2001-06-01 2002-12-13 Keiwa Inc 光学シート及びこれを用いたバックライトユニット
JP2008003232A (ja) * 2006-06-21 2008-01-10 Fujifilm Corp 光学シート及び光学シートの製造方法、バックライト、液晶表示装置
JP2009238491A (ja) * 2008-03-26 2009-10-15 Dainippon Printing Co Ltd 光学シートおよび面光源装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1720044A4 (en) * 2004-02-26 2009-09-09 Takiron Co LIGHT DIFFUSION SHEET AND RETRACTING UNIT WITH THIS LIGHT DIFFUSION SHEET
TWI417564B (zh) * 2005-02-21 2013-12-01 Dainippon Printing Co Ltd Manufacturing method and manufacturing apparatus for optical laminate
JP3114467U (ja) 2005-07-07 2005-10-27 科橋電子股▲ふん▼有限公司 直下型バックライトモジュールのライトガイド構造
CN101104604B (zh) 2006-07-10 2011-03-02 北京摩力克科技有限公司 光学纯二氢嘧啶类化合物及其用于制备治疗和预防病毒性疾病的药物的用途
US20080239728A1 (en) * 2007-03-27 2008-10-02 Tien-Hon Chiang Light control device having modified prism structure
KR20160073381A (ko) * 2008-05-23 2016-06-24 유브라이트 옵트로닉스 코포레이션 확산용 입자들이 기판에 분산되어 있는 휘도보강막
TW201022711A (en) * 2008-09-09 2010-06-16 Dainippon Ink & Chemicals Moire strip inhibiting film, prism sheet with moire strip inhibiting function, backlight unit and liquid crystal display device using the same
JP2010117707A (ja) * 2008-10-16 2010-05-27 Asahi Kasei E-Materials Corp 光拡散板及び直下型点光源バックライト装置
JP2010176014A (ja) * 2009-01-30 2010-08-12 Jiroo Corporate Plan:Kk 液晶表示装置用光学シート及びこれを用いたバックライトユニット
JP2011048075A (ja) * 2009-08-26 2011-03-10 Toppan Printing Co Ltd 光学シート及びこれを備えたバックライトユニット並びにディスプレイ装置
WO2011025171A2 (en) * 2009-08-27 2011-03-03 Lg Electronics Inc. Optical assembly, backlight unit, and display device
JP2011129277A (ja) 2009-12-15 2011-06-30 Toppan Printing Co Ltd バックライトユニット及びディスプレイ装置
CN202048503U (zh) * 2011-03-08 2011-11-23 广东泰德科技有限公司 一种led背光模组扩散板
CN107390307A (zh) * 2016-05-16 2017-11-24 惠和株式会社 液晶显示装置用光学片、液晶显示装置用背光单元及液晶显示装置用光学片的制造方法
JP2019101142A (ja) * 2017-11-30 2019-06-24 東レ株式会社 光反射シートおよび光学部材
JP6886992B2 (ja) * 2018-03-30 2021-06-16 恵和株式会社 光拡散板積層体、バックライトユニット、及び液晶表示装置
KR102591775B1 (ko) * 2018-10-01 2023-10-24 삼성전자주식회사 백라이트유닛 및 이를 포함하는 액정표시장치
JP2020194740A (ja) * 2019-05-29 2020-12-03 パナソニック液晶ディスプレイ株式会社 照明装置及び液晶表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002357706A (ja) * 2001-06-01 2002-12-13 Keiwa Inc 光学シート及びこれを用いたバックライトユニット
JP2008003232A (ja) * 2006-06-21 2008-01-10 Fujifilm Corp 光学シート及び光学シートの製造方法、バックライト、液晶表示装置
JP2009238491A (ja) * 2008-03-26 2009-10-15 Dainippon Printing Co Ltd 光学シートおよび面光源装置

Also Published As

Publication number Publication date
JP7509808B2 (ja) 2024-07-02
JP2023143938A (ja) 2023-10-06
TWI790561B (zh) 2023-01-21
JP2022044674A (ja) 2022-03-17
WO2021199741A1 (ja) 2021-10-07
US20230038442A1 (en) 2023-02-09
US12105376B2 (en) 2024-10-01
CN115053153A (zh) 2022-09-13
KR20220123124A (ko) 2022-09-05
TW202138887A (zh) 2021-10-16

Similar Documents

Publication Publication Date Title
CN115053153B (zh) 光学片、背光单元、液晶显示装置及信息设备
US12197073B2 (en) Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit
KR102816327B1 (ko) 광학 시트 적층체, 백라이트 유닛, 액정표시장치, 정보기기, 및 백라이트 유닛의 제조방법
US12174489B2 (en) Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit
JP7037624B2 (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
US12135479B2 (en) Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit
JP2025004222A (ja) 光拡散シート積層体、バックライトユニット、液晶表示装置及び情報機器
KR102883583B1 (ko) 광학 시트 적층체, 백라이트 유닛, 액정표시장치, 정보기기, 및 광학 시트 적층체의 제조방법
TWI799166B (zh) 光擴散片、背光單元、液晶顯示裝置以及資訊機器
KR102825192B1 (ko) 광확산 시트, 백라이트 유닛, 액정표시장치, 정보기기, 및 광확산 시트의 제조방법
KR102786237B1 (ko) 광확산 시트, 백라이트 유닛, 액정표시장치, 정보기기, 및 백라이트 유닛의 제조방법
JP7732916B2 (ja) バックライトユニット、液晶表示装置及び情報機器
KR102879487B1 (ko) 광학 시트 적층체, 백라이트 유닛, 액정표시장치, 정보기기, 및 백라이트 유닛의 제조방법

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant