KR20250121447A - 백라이트 디스플레이용 백라이트 유닛 - Google Patents

백라이트 디스플레이용 백라이트 유닛

Info

Publication number
KR20250121447A
KR20250121447A KR1020257025092A KR20257025092A KR20250121447A KR 20250121447 A KR20250121447 A KR 20250121447A KR 1020257025092 A KR1020257025092 A KR 1020257025092A KR 20257025092 A KR20257025092 A KR 20257025092A KR 20250121447 A KR20250121447 A KR 20250121447A
Authority
KR
South Korea
Prior art keywords
light
light splitting
optical films
backlight unit
optical film
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
KR1020257025092A
Other languages
English (en)
Korean (ko)
Inventor
케네스 엘. 워커
빙 셴
매튜 케이. 포프
Original Assignee
브라이트뷰 테크놀로지즈 아이엔씨.
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 브라이트뷰 테크놀로지즈 아이엔씨. filed Critical 브라이트뷰 테크놀로지즈 아이엔씨.
Publication of KR20250121447A publication Critical patent/KR20250121447A/ko
Pending legal-status Critical Current

Links

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)
KR1020257025092A 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛 Pending KR20250121447A (ko)

Applications Claiming Priority (8)

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
KR1020227011375A KR102840307B1 (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛
PCT/US2020/049907 WO2021050523A1 (en) 2019-09-11 2020-09-09 Back light unit for backlit displays

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020227011375A Division KR102840307B1 (ko) 2019-09-11 2020-09-09 백라이트 디스플레이용 백라이트 유닛

Publications (1)

Publication Number Publication Date
KR20250121447A true KR20250121447A (ko) 2025-08-12

Family

ID=74851032

Family Applications (2)

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

Family Applications After (1)

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

Country Status (6)

Country Link
US (2) US11181776B2 (https=)
EP (1) EP4028830B1 (https=)
JP (3) JP7539172B2 (https=)
KR (2) KR20250121447A (https=)
CN (1) CN114556201A (https=)
WO (1) WO2021050523A1 (https=)

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KR20230117438A (ko) * 2020-12-18 2023-08-08 브라이트뷰 테크놀로지즈 아이엔씨. 개선된 효율을 갖는 에지-라이트형 백 라이트 유닛
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
CN116068677A (zh) * 2021-10-29 2023-05-05 宁波激智科技股份有限公司 一种匀光膜、一种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。
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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
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JP6833059B2 (ja) * 2017-10-25 2021-02-24 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
WO2019152382A1 (en) * 2018-01-30 2019-08-08 Bright View Technologies Corporation Microstructures for transforming light having lambertian distribution into batwing distributions
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WO2021050523A1 (en) 2019-09-11 2021-03-18 Bright View Technologies Corporation Back light unit for backlit displays

Also Published As

Publication number Publication date
KR102840307B1 (ko) 2025-07-30
KR20220062028A (ko) 2022-05-13
JP7798385B2 (ja) 2026-01-14
JP7539172B2 (ja) 2024-08-23
US11181776B2 (en) 2021-11-23
US20220043307A1 (en) 2022-02-10
JP2024100837A (ja) 2024-07-26
EP4028830A4 (en) 2023-10-04
US11630346B2 (en) 2023-04-18
EP4028830A1 (en) 2022-07-20
EP4028830B1 (en) 2026-03-25
WO2021050523A1 (en) 2021-03-18
JP2022548578A (ja) 2022-11-21
CN114556201A (zh) 2022-05-27
JP2026034673A (ja) 2026-02-27
US20210072598A1 (en) 2021-03-11

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