JP7539172B2 - バックライト付きディスプレイのためのバックライトユニット - Google Patents

バックライト付きディスプレイのためのバックライトユニット Download PDF

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Publication number
JP7539172B2
JP7539172B2 JP2022516023A JP2022516023A JP7539172B2 JP 7539172 B2 JP7539172 B2 JP 7539172B2 JP 2022516023 A JP2022516023 A JP 2022516023A JP 2022516023 A JP2022516023 A JP 2022516023A JP 7539172 B2 JP7539172 B2 JP 7539172B2
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light
optical film
dividing
backlight unit
microstructures
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Japanese (ja)
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JP2022548578A5 (https=
JP2022548578A (ja
JPWO2021050523A5 (https=
Inventor
ケニス エル． ウォーカー，
ビン シェン，
マシュー ケー． ポープ，
Original Assignee
ブライトビュー テクノロジーズ， インコーポレイテッド
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Publication of JP2022548578A publication Critical patent/JP2022548578A/ja
Publication of JP2022548578A5 publication Critical patent/JP2022548578A5/ja
Publication of JPWO2021050523A5 publication Critical patent/JPWO2021050523A5/ja
Priority to JP2024079327A priority Critical patent/JP7798385B2/ja
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Priority to JP2025264618A priority patent/JP2026034673A/ja
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    • 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

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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)
JP2022516023A 2019-09-11 2020-09-09 バックライト付きディスプレイのためのバックライトユニット Active JP7539172B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024079327A JP7798385B2 (ja) 2019-09-11 2024-05-15 バックライト付きディスプレイのためのバックライトユニット
JP2025264618A JP2026034673A (ja) 2019-09-11 2025-12-18 バックライト付きディスプレイのためのバックライトユニット

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
JP2024079327A Division JP7798385B2 (ja) 2019-09-11 2024-05-15 バックライト付きディスプレイのためのバックライトユニット

Publications (4)

Publication Number Publication Date
JP2022548578A JP2022548578A (ja) 2022-11-21
JP2022548578A5 JP2022548578A5 (https=) 2023-08-25
JPWO2021050523A5 JPWO2021050523A5 (https=) 2023-08-25
JP7539172B2 true JP7539172B2 (ja) 2024-08-23

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
JP2022516023A Active JP7539172B2 (ja) 2019-09-11 2020-09-09 バックライト付きディスプレイのためのバックライトユニット
JP2024079327A Active JP7798385B2 (ja) 2019-09-11 2024-05-15 バックライト付きディスプレイのためのバックライトユニット
JP2025264618A Pending JP2026034673A (ja) 2019-09-11 2025-12-18 バックライト付きディスプレイのためのバックライトユニット

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JP2024079327A Active JP7798385B2 (ja) 2019-09-11 2024-05-15 バックライト付きディスプレイのためのバックライトユニット
JP2025264618A Pending JP2026034673A (ja) 2019-09-11 2025-12-18 バックライト付きディスプレイのためのバックライトユニット

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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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
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JP2010123551A (ja) 2008-11-21 2010-06-03 Citizen Electronics Co Ltd 面状光源及び液晶表示装置
US20110141412A1 (en) 2009-12-10 2011-06-16 Industrial Technology Research Institute Color separation system
JP2011209727A (ja) 2010-03-26 2011-10-20 Ubright Optronics Corp 光コリメーション／拡散構造を有する光学基板
JP2017068250A (ja) 2015-09-28 2017-04-06 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
JP2017098246A (ja) 2015-11-27 2017-06-01 揚昇照明股▲ふん▼有限公司 バックライトモジュールとその駆動方法、及び当該バックライトモジュールを有する表示装置
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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

Also Published As

Publication number Publication date
KR102840307B1 (ko) 2025-07-30
KR20220062028A (ko) 2022-05-13
JP7798385B2 (ja) 2026-01-14
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
CN114556201A (zh) 2022-05-27
JP2026034673A (ja) 2026-02-27
US20210072598A1 (en) 2021-03-11

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