JP7275341B1 - 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、及びバックライトユニットの製造方法 - Google Patents

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、及びバックライトユニットの製造方法 Download PDF

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Publication number
JP7275341B1
JP7275341B1 JP2022035936A JP2022035936A JP7275341B1 JP 7275341 B1 JP7275341 B1 JP 7275341B1 JP 2022035936 A JP2022035936 A JP 2022035936A JP 2022035936 A JP2022035936 A JP 2022035936A JP 7275341 B1 JP7275341 B1 JP 7275341B1
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JP
Japan
Prior art keywords
light
light diffusion
diffusion sheet
backlight unit
sheet
Prior art date
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Active
Application number
JP2022035936A
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English (en)
Japanese (ja)
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JP2023131284A (ja
Inventor
承亨 蔡
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
Application filed by Keiwa Inc filed Critical Keiwa Inc
Priority to JP2022035936A priority Critical patent/JP7275341B1/ja
Priority to EP22931008.1A priority patent/EP4467866A4/en
Priority to CN202411030366.3A priority patent/CN118962875A/zh
Priority to KR1020247020618A priority patent/KR102786237B1/ko
Priority to KR1020257009091A priority patent/KR102893441B1/ko
Priority to CN202280006183.0A priority patent/CN116324531A/zh
Priority to PCT/JP2022/041405 priority patent/WO2023171036A1/ja
Priority to TW113117825A priority patent/TWI882803B/zh
Priority to TW114117079A priority patent/TW202532945A/zh
Priority to TW111145104A priority patent/TWI867372B/zh
Priority to JP2023075992A priority patent/JP2023133282A/ja
Application granted granted Critical
Publication of JP7275341B1 publication Critical patent/JP7275341B1/ja
Publication of JP2023131284A publication Critical patent/JP2023131284A/ja
Priority to US18/825,724 priority patent/US12313935B2/en
Priority to US19/190,288 priority patent/US20250251626A1/en
Priority to US19/192,942 priority patent/US20250258407A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)
JP2022035936A 2022-03-09 2022-03-09 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、及びバックライトユニットの製造方法 Active JP7275341B1 (ja)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP2022035936A JP7275341B1 (ja) 2022-03-09 2022-03-09 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、及びバックライトユニットの製造方法
CN202411030366.3A CN118962875A (zh) 2022-03-09 2022-11-07 光扩散片、背光单元、液晶显示装置、信息设备以及背光单元的制造方法
KR1020247020618A KR102786237B1 (ko) 2022-03-09 2022-11-07 광확산 시트, 백라이트 유닛, 액정표시장치, 정보기기, 및 백라이트 유닛의 제조방법
KR1020257009091A KR102893441B1 (ko) 2022-03-09 2022-11-07 광확산 시트, 백라이트 유닛, 액정표시장치, 정보기기, 및 백라이트 유닛의 제조방법
CN202280006183.0A CN116324531A (zh) 2022-03-09 2022-11-07 光扩散片、背光单元、液晶显示装置、信息设备以及背光单元的制造方法
PCT/JP2022/041405 WO2023171036A1 (ja) 2022-03-09 2022-11-07 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、及びバックライトユニットの製造方法
EP22931008.1A EP4467866A4 (en) 2022-03-09 2022-11-07 Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unit
TW114117079A TW202532945A (zh) 2022-03-09 2022-11-25 光擴散片、背光單元、液晶顯示裝置、資訊機器以及背光單元的製造方法
TW113117825A TWI882803B (zh) 2022-03-09 2022-11-25 光擴散片、背光單元、液晶顯示裝置、資訊機器以及背光單元的製造方法
TW111145104A TWI867372B (zh) 2022-03-09 2022-11-25 光擴散片、背光單元、液晶顯示裝置、資訊機器以及背光單元的製造方法
JP2023075992A JP2023133282A (ja) 2022-03-09 2023-05-02 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、及びバックライトユニットの製造方法
US18/825,724 US12313935B2 (en) 2022-03-09 2024-09-05 Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unit
US19/190,288 US20250251626A1 (en) 2022-03-09 2025-04-25 Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unit
US19/192,942 US20250258407A1 (en) 2022-03-09 2025-04-29 Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022035936A JP7275341B1 (ja) 2022-03-09 2022-03-09 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、及びバックライトユニットの製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2023075992A Division JP2023133282A (ja) 2022-03-09 2023-05-02 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、及びバックライトユニットの製造方法

Publications (2)

Publication Number Publication Date
JP7275341B1 true JP7275341B1 (ja) 2023-05-17
JP2023131284A JP2023131284A (ja) 2023-09-22

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
JP2022035936A Active JP7275341B1 (ja) 2022-03-09 2022-03-09 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、及びバックライトユニットの製造方法
JP2023075992A Pending JP2023133282A (ja) 2022-03-09 2023-05-02 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、及びバックライトユニットの製造方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2023075992A Pending JP2023133282A (ja) 2022-03-09 2023-05-02 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、及びバックライトユニットの製造方法

Country Status (3)

Country Link
JP (2) JP7275341B1 (enExample)
TW (3) TWI882803B (enExample)
WO (1) WO2023171036A1 (enExample)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012043671A (ja) 2010-08-20 2012-03-01 Nippon Shokubai Co Ltd 面状光源装置
JP2012234047A (ja) 2011-04-28 2012-11-29 Nippon Shokubai Co Ltd 光学シート、及び該光学シートを用いた面状光源装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7887208B2 (en) * 2005-09-15 2011-02-15 Zeon Corporation Direct type back-light device
CN101410668A (zh) * 2006-03-31 2009-04-15 日本瑞翁株式会社 正下型背光装置
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012043671A (ja) 2010-08-20 2012-03-01 Nippon Shokubai Co Ltd 面状光源装置
JP2012234047A (ja) 2011-04-28 2012-11-29 Nippon Shokubai Co Ltd 光学シート、及び該光学シートを用いた面状光源装置

Also Published As

Publication number Publication date
TW202532945A (zh) 2025-08-16
TWI867372B (zh) 2024-12-21
TW202336515A (zh) 2023-09-16
WO2023171036A1 (ja) 2023-09-14
TWI882803B (zh) 2025-05-01
TW202434968A (zh) 2024-09-01
JP2023133282A (ja) 2023-09-22
JP2023131284A (ja) 2023-09-22

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