KR102840307B1 - 백라이트 디스플레이용 백라이트 유닛 - Google Patents

백라이트 디스플레이용 백라이트 유닛

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Publication number
KR102840307B1
KR102840307B1 KR1020227011375A KR20227011375A KR102840307B1 KR 102840307 B1 KR102840307 B1 KR 102840307B1 KR 1020227011375 A KR1020227011375 A KR 1020227011375A KR 20227011375 A KR20227011375 A KR 20227011375A KR 102840307 B1 KR102840307 B1 KR 102840307B1
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KR
South Korea
Prior art keywords
light splitting
light
optical film
backlight unit
films
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
KR1020227011375A
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English (en)
Korean (ko)
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KR20220062028A (ko
Inventor
케네스 엘. 워커
빙 셴
매튜 케이. 포프
Original Assignee
브라이트뷰 테크놀로지즈 아이엔씨.
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Application filed by 브라이트뷰 테크놀로지즈 아이엔씨. filed Critical 브라이트뷰 테크놀로지즈 아이엔씨.
Priority to KR1020257025092A priority Critical patent/KR20250121447A/ko
Publication of KR20220062028A publication Critical patent/KR20220062028A/ko
Application granted granted Critical
Publication of KR102840307B1 publication Critical patent/KR102840307B1/ko
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
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
KR1020227011375A 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛 Active KR102840307B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020257025092A KR20250121447A (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201962898693P 2019-09-11 2019-09-11
US62/898,693 2019-09-11
US201962929309P 2019-11-01 2019-11-01
US62/929,309 2019-11-01
US202063023618P 2020-05-12 2020-05-12
US63/023,618 2020-05-12
PCT/US2020/049907 WO2021050523A1 (en) 2019-09-11 2020-09-09 Back light unit for backlit displays

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020257025092A Division KR20250121447A (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛

Publications (2)

Publication Number Publication Date
KR20220062028A KR20220062028A (ko) 2022-05-13
KR102840307B1 true KR102840307B1 (ko) 2025-07-30

Family

ID=74851032

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1020227011375A Active KR102840307B1 (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛
KR1020257025092A Pending KR20250121447A (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020257025092A Pending KR20250121447A (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛

Country Status (5)

Country Link
US (2) US11181776B2 (https=)
EP (1) EP4028830B1 (https=)
JP (3) JP7539172B2 (https=)
KR (2) KR102840307B1 (https=)
WO (1) WO2021050523A1 (https=)

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WO2021050523A1 (en) 2019-09-11 2021-03-18 Bright View Technologies Corporation Back light unit for backlit displays
US11822158B2 (en) * 2019-09-11 2023-11-21 Brightview Technologies, Inc. Back light unit for backlit displays
TWI750935B (zh) * 2020-12-04 2021-12-21 穎台科技股份有限公司 擴散板及具擴散板的背光模組
US11668975B2 (en) * 2020-12-18 2023-06-06 Brightview Technologies, Inc. Edge-lit back light unit with improved efficiency
US12360418B2 (en) 2020-12-18 2025-07-15 Brightview Technologies, Inc. Edge-lit back light unit using prism microstructures
JP7506640B2 (ja) * 2021-07-06 2024-06-26 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
JP7509721B2 (ja) 2021-07-06 2024-07-02 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
JP7499741B2 (ja) * 2021-09-09 2024-06-14 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
KR102599217B1 (ko) * 2021-09-23 2023-11-08 주식회사 엘엠에스 광학 필름 및 이를 포함하는 백라이트 유닛
CN116068678B (zh) * 2021-10-29 2025-09-23 宁波激智科技股份有限公司 一种匀光膜、一种新型复合匀光膜及其制备方法
JP7572479B2 (ja) * 2021-11-11 2024-10-23 株式会社ツジデン 直下型点光源バックライトユニット、及び該直下型点光源バックライトユニットを搭載した液晶装置。
WO2023210614A1 (ja) 2022-04-28 2023-11-02 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
EP4599295A1 (en) 2022-10-04 2025-08-13 BrightView Technologies, Inc. Back light unit for backlit displays
CN115763455B (zh) * 2022-11-14 2025-10-28 武汉华星光电技术有限公司 显示模组及移动终端
US12523907B2 (en) 2023-03-13 2026-01-13 Meta Platforms Technologies, Llc Wide color gamut enabled edge-lit BLU for high PPI VR-LCD display
CN221079143U (zh) 2023-05-22 2024-06-04 亮视技术公司 背光单元
WO2026022780A1 (en) * 2024-07-26 2026-01-29 3M Innovative Properties Company Backlight and display system

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WO2019082856A1 (ja) * 2017-10-25 2019-05-02 富士フイルム株式会社 面状照明装置および液晶表示装置

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KR20120019784A (ko) * 2010-08-27 2012-03-07 희성전자 주식회사 직하형 백라이트 장치
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JP6829969B2 (ja) * 2015-09-28 2021-02-17 日東電工株式会社 光学部材、ならびに、該光学部材を用いた偏光板のセットおよび液晶表示装置
TWI573123B (zh) * 2015-11-27 2017-03-01 揚昇照明股份有限公司 背光模組及其驅動方法以及具有此背光模組的顯示裝置
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KR102870227B1 (ko) 2018-01-30 2025-10-14 브라이트 뷰 테크놀로지즈 코포레이션 램버시안 분포를 갖는 광을 배트윙 분포로 변환하기 위한 마이크로구조체
WO2021050523A1 (en) 2019-09-11 2021-03-18 Bright View Technologies Corporation Back light unit for backlit displays

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US20110141412A1 (en) * 2009-12-10 2011-06-16 Industrial Technology Research Institute Color separation system
WO2019067095A1 (en) * 2017-09-26 2019-04-04 Apple Inc. ELECTRONIC DEVICES WITH DISPLAYS WITH DIRECT LIGHTING BACKLIGHT UNITS
WO2019082856A1 (ja) * 2017-10-25 2019-05-02 富士フイルム株式会社 面状照明装置および液晶表示装置

Also Published As

Publication number Publication date
US20210072598A1 (en) 2021-03-11
CN114556201A (zh) 2022-05-27
JP2022548578A (ja) 2022-11-21
US20220043307A1 (en) 2022-02-10
JP2026034673A (ja) 2026-02-27
JP7539172B2 (ja) 2024-08-23
JP2024100837A (ja) 2024-07-26
WO2021050523A1 (en) 2021-03-18
US11181776B2 (en) 2021-11-23
KR20250121447A (ko) 2025-08-12
EP4028830A1 (en) 2022-07-20
EP4028830B1 (en) 2026-03-25
US11630346B2 (en) 2023-04-18
JP7798385B2 (ja) 2026-01-14
EP4028830A4 (en) 2023-10-04
KR20220062028A (ko) 2022-05-13

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