KR102673816B1 - 균일광을 제공하는 백라이트 유닛 및 이를 포함하는 디스플레이 장치 - Google Patents

균일광을 제공하는 백라이트 유닛 및 이를 포함하는 디스플레이 장치 Download PDF

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Publication number
KR102673816B1
KR102673816B1 KR1020190018841A KR20190018841A KR102673816B1 KR 102673816 B1 KR102673816 B1 KR 102673816B1 KR 1020190018841 A KR1020190018841 A KR 1020190018841A KR 20190018841 A KR20190018841 A KR 20190018841A KR 102673816 B1 KR102673816 B1 KR 102673816B1
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KR
South Korea
Prior art keywords
light
guide plate
output
light guide
backlight unit
Prior art date
Application number
KR1020190018841A
Other languages
English (en)
Korean (ko)
Other versions
KR20190120695A (ko
Inventor
절먼 비 두비닌
세르게이 이 두비닌
알렉산더 브이 모로조프
안드레이 앤 푸틸린
세르게이 에스 코펜킨
유리 피 보로딘
안중권
최칠성
이홍석
송훈
김선일
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to US16/374,318 priority Critical patent/US10761256B2/en
Priority to CN201910292756.0A priority patent/CN110389403B/zh
Publication of KR20190120695A publication Critical patent/KR20190120695A/ko
Application granted granted Critical
Publication of KR102673816B1 publication Critical patent/KR102673816B1/ko

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    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G3/2096—Details of the interface to the display terminal specific for a flat panel

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
KR1020190018841A 2018-04-16 2019-02-18 균일광을 제공하는 백라이트 유닛 및 이를 포함하는 디스플레이 장치 KR102673816B1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/374,318 US10761256B2 (en) 2018-04-16 2019-04-03 Backlight unit providing uniform light and display apparatus including the same
CN201910292756.0A CN110389403B (zh) 2018-04-16 2019-04-12 提供均匀光的背光单元以及包括其的显示装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018113739A RU2673013C1 (ru) 2018-04-16 2018-04-16 Устройство когерентной подсветки с рекупераций света
RU2018113739 2018-04-16

Publications (2)

Publication Number Publication Date
KR20190120695A KR20190120695A (ko) 2019-10-24
KR102673816B1 true KR102673816B1 (ko) 2024-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190018841A KR102673816B1 (ko) 2018-04-16 2019-02-18 균일광을 제공하는 백라이트 유닛 및 이를 포함하는 디스플레이 장치

Country Status (2)

Country Link
KR (1) KR102673816B1 (ru)
RU (1) RU2673013C1 (ru)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040004767A1 (en) 2002-05-13 2004-01-08 Samsung Electronics Co., Ltd. Wearable display system adjusting magnification of an image
US20110242670A1 (en) 2008-12-12 2011-10-06 Bae Systems Plc Waveguides
US20170090089A1 (en) 2015-09-24 2017-03-30 Samsung Electronics Co., Ltd. Back light unit for holographic display
US20170307886A1 (en) 2016-04-25 2017-10-26 Petri Antero Stenberg Refractive coating for diffractive optical elements
US10534176B1 (en) 2017-10-09 2020-01-14 Facebook Technologies, Llc Waveguide display with gratings for improved diffraction efficiency

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008268642A (ja) * 2007-04-23 2008-11-06 Sony Corp バックライト装置、バックライト制御方法、および液晶表示装置
US8797305B2 (en) * 2009-05-29 2014-08-05 Sharp Kabushiki Kaisha Display device and method for driving same
KR20120127077A (ko) 2011-05-13 2012-11-21 엘지전자 주식회사 색 변환 소자 및 그 제조 방법
US20140340997A1 (en) * 2013-05-20 2014-11-20 Aliphcom Media device, application, and content management using sensory input determined from a data-capable watch band
US9336746B2 (en) * 2013-02-25 2016-05-10 Canon Kabushiki Kaisha Image display device and control method thereof
US20150084928A1 (en) * 2013-09-23 2015-03-26 Qualcomm Incorporated Touch-enabled field sequential color display using in-cell light sensors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040004767A1 (en) 2002-05-13 2004-01-08 Samsung Electronics Co., Ltd. Wearable display system adjusting magnification of an image
US20110242670A1 (en) 2008-12-12 2011-10-06 Bae Systems Plc Waveguides
US20170090089A1 (en) 2015-09-24 2017-03-30 Samsung Electronics Co., Ltd. Back light unit for holographic display
US20170307886A1 (en) 2016-04-25 2017-10-26 Petri Antero Stenberg Refractive coating for diffractive optical elements
US10534176B1 (en) 2017-10-09 2020-01-14 Facebook Technologies, Llc Waveguide display with gratings for improved diffraction efficiency

Also Published As

Publication number Publication date
KR20190120695A (ko) 2019-10-24
RU2673013C1 (ru) 2018-11-21

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