CN114556201A - 用于背光显示器的背光单元 - Google Patents

用于背光显示器的背光单元 Download PDF

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Publication number
CN114556201A
CN114556201A CN202080070555.7A CN202080070555A CN114556201A CN 114556201 A CN114556201 A CN 114556201A CN 202080070555 A CN202080070555 A CN 202080070555A CN 114556201 A CN114556201 A CN 114556201A
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CN
China
Prior art keywords
optical film
light
backlight unit
microstructures
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.)
Pending
Application number
CN202080070555.7A
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English (en)
Chinese (zh)
Inventor
K·L·沃克
沈冰
M·K·蒲波
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Bright Technology Co
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Bright Technology Co
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Publication of CN114556201A publication Critical patent/CN114556201A/zh
Pending legal-status Critical Current

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    • 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
    • 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
    • G02F1/133606—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

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  • 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)
CN202080070555.7A 2019-09-11 2020-09-09 用于背光显示器的背光单元 Pending CN114556201A (zh)

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

Publications (1)

Publication Number Publication Date
CN114556201A true CN114556201A (zh) 2022-05-27

Family

ID=74851032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080070555.7A Pending CN114556201A (zh) 2019-09-11 2020-09-09 用于背光显示器的背光单元

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=)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
US11630346B2 (en) 2019-09-11 2023-04-18 Brightview Technologies, Inc. Back light unit for backlit displays
US11822158B2 (en) 2019-09-11 2023-11-21 Brightview Technologies, Inc. Back light unit for backlit displays
US12032242B1 (en) 2023-05-22 2024-07-09 Brightview Technologies, Inc. Back light unit for backlit displays

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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
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。
EP4717972A3 (en) 2022-04-28 2026-04-08 KEIWA Incorporated Light diffusion sheet, backlight unit, liquid crystal display device, and information equipment
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
WO2026022780A1 (en) * 2024-07-26 2026-01-29 3M Innovative Properties Company Backlight and display system

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US20100033957A1 (en) * 2008-08-06 2010-02-11 Po-Iem Lin Backlight Module
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WO2021050523A1 (en) 2019-09-11 2021-03-18 Bright View Technologies Corporation Back light unit for backlit displays

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US20100033957A1 (en) * 2008-08-06 2010-02-11 Po-Iem Lin Backlight Module
CN102162626A (zh) * 2010-02-24 2011-08-24 索尼公司 光学片层叠体，照明装置和显示装置
US20110221999A1 (en) * 2010-03-10 2011-09-15 Coretronic Corporation Beam splitting film, backlight module, and stereo display apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11630346B2 (en) 2019-09-11 2023-04-18 Brightview Technologies, Inc. Back light unit for backlit displays
US11822158B2 (en) 2019-09-11 2023-11-21 Brightview Technologies, Inc. Back light unit for backlit displays
US12032242B1 (en) 2023-05-22 2024-07-09 Brightview Technologies, Inc. Back light unit for backlit displays
US12228818B2 (en) 2023-05-22 2025-02-18 Brightview Technologies, Inc. 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
KR20250121447A (ko) 2025-08-12
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
JP2026034673A (ja) 2026-02-27
US20210072598A1 (en) 2021-03-11

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