KR20140018742A - 백라이트 유닛 및 이를 갖는 표시 장치 - Google Patents

백라이트 유닛 및 이를 갖는 표시 장치 Download PDF

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Publication number
KR20140018742A
KR20140018742A KR1020120085384A KR20120085384A KR20140018742A KR 20140018742 A KR20140018742 A KR 20140018742A KR 1020120085384 A KR1020120085384 A KR 1020120085384A KR 20120085384 A KR20120085384 A KR 20120085384A KR 20140018742 A KR20140018742 A KR 20140018742A
Authority
KR
South Korea
Prior art keywords
light
protrusion
region
incident
guide plate
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.)
Ceased
Application number
KR1020120085384A
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English (en)
Korean (ko)
Inventor
김형주
하상우
남지은
류태용
최진성
Original Assignee
삼성디스플레이 주식회사
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 삼성디스플레이 주식회사 filed Critical 삼성디스플레이 주식회사
Priority to KR1020120085384A priority Critical patent/KR20140018742A/ko
Priority to US13/755,327 priority patent/US9291765B2/en
Priority to EP13157367.7A priority patent/EP2693115A3/en
Priority to CN201310180686.2A priority patent/CN103576381B/zh
Priority to JP2013112543A priority patent/JP6178114B2/ja
Publication of KR20140018742A publication Critical patent/KR20140018742A/ko
Ceased legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
KR1020120085384A 2012-08-03 2012-08-03 백라이트 유닛 및 이를 갖는 표시 장치 Ceased KR20140018742A (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020120085384A KR20140018742A (ko) 2012-08-03 2012-08-03 백라이트 유닛 및 이를 갖는 표시 장치
US13/755,327 US9291765B2 (en) 2012-08-03 2013-01-31 Backlight unit and display apparatus having the same
EP13157367.7A EP2693115A3 (en) 2012-08-03 2013-03-01 Backlight unit and display apparatus having the same
CN201310180686.2A CN103576381B (zh) 2012-08-03 2013-05-16 背光单元及具有该背光单元的显示装置
JP2013112543A JP6178114B2 (ja) 2012-08-03 2013-05-29 バックライトユニット及びこれを有する表示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120085384A KR20140018742A (ko) 2012-08-03 2012-08-03 백라이트 유닛 및 이를 갖는 표시 장치

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020190099412A Division KR102150855B1 (ko) 2019-08-14 2019-08-14 백라이트 유닛 및 이를 갖는 표시 장치

Publications (1)

Publication Number Publication Date
KR20140018742A true KR20140018742A (ko) 2014-02-13

Family

ID=47844094

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120085384A Ceased KR20140018742A (ko) 2012-08-03 2012-08-03 백라이트 유닛 및 이를 갖는 표시 장치

Country Status (5)

Country Link
US (1) US9291765B2 (enExample)
EP (1) EP2693115A3 (enExample)
JP (1) JP6178114B2 (enExample)
KR (1) KR20140018742A (enExample)
CN (1) CN103576381B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9759853B2 (en) 2014-10-14 2017-09-12 Samsung Display Co., Ltd. Backlight unit and display apparatus having the same
US9927570B2 (en) 2015-02-24 2018-03-27 Samsung Display Co., Ltd. Liquid crystal display apparatus having a light guide plate with optical patterns to prevent light leakage
CN114624811A (zh) * 2022-05-17 2022-06-14 深圳市北泰显示技术有限公司 一种显示屏背光模组的生产方法

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CN105698045A (zh) * 2014-11-28 2016-06-22 江苏欧密格光电科技股份有限公司 高反射率led背光板
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JP6542184B2 (ja) 2016-12-01 2019-07-10 ミネベアミツミ株式会社 面状照明装置
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TWI878209B (zh) 2017-09-15 2025-04-01 美商瑞爾Ｄ斯帕克有限責任公司 顯示裝置及應用於顯示裝置的視角控制光學元件
JP6949643B2 (ja) * 2017-09-28 2021-10-13 株式会社ジャパンディスプレイ 照明装置及び表示装置
JP7353007B2 (ja) 2018-01-25 2023-09-29 リアルディー スパーク エルエルシー プライバシー表示用タッチスクリーン
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JP7495027B2 (ja) * 2018-03-22 2024-06-04 リアルディー スパーク エルエルシー 光導波路、バックライト装置およびディスプレイ装置
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TW202102883A (zh) 2019-07-02 2021-01-16 美商瑞爾Ｄ斯帕克有限責任公司 定向顯示設備
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CN114761844A (zh) 2019-12-10 2022-07-15 瑞尔D斯帕克有限责任公司 显示装置的反射的控制
KR102696037B1 (ko) * 2020-01-22 2024-08-19 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시 장치
US11237417B2 (en) 2020-04-30 2022-02-01 Reald Spark, Llc Directional display apparatus
TWI898003B (zh) 2020-07-29 2025-09-21 美商瑞爾Ｄ斯帕克有限責任公司 光瞳照明裝置
US11892717B2 (en) 2021-09-30 2024-02-06 Reald Spark, Llc Marks for privacy display
WO2023154217A1 (en) 2022-02-09 2023-08-17 Reald Spark, Llc Observer-tracked privacy display
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US12393066B2 (en) 2023-08-03 2025-08-19 Reald Spark, Llc Privacy displays
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9759853B2 (en) 2014-10-14 2017-09-12 Samsung Display Co., Ltd. Backlight unit and display apparatus having the same
US9927570B2 (en) 2015-02-24 2018-03-27 Samsung Display Co., Ltd. Liquid crystal display apparatus having a light guide plate with optical patterns to prevent light leakage
CN114624811A (zh) * 2022-05-17 2022-06-14 深圳市北泰显示技术有限公司 一种显示屏背光模组的生产方法

Also Published As

Publication number Publication date
CN103576381B (zh) 2018-09-21
JP2014032953A (ja) 2014-02-20
JP6178114B2 (ja) 2017-08-09
US9291765B2 (en) 2016-03-22
EP2693115A2 (en) 2014-02-05
EP2693115A3 (en) 2018-02-07
US20140036531A1 (en) 2014-02-06
CN103576381A (zh) 2014-02-12

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Comment text: Decision on Dismissal of Amendment

Patent event date: 20190716

Patent event code: PE08011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 20190620

Patent event code: PE08011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 20190114

PA0107 Divisional application

Comment text: Divisional Application of Patent

Patent event date: 20190814

Patent event code: PA01071R01D