KR100918656B1 - 액정표시장치의 백라이트 유닛 - Google Patents

액정표시장치의 백라이트 유닛 Download PDF

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Publication number
KR100918656B1
KR100918656B1 KR1020080013037A KR20080013037A KR100918656B1 KR 100918656 B1 KR100918656 B1 KR 100918656B1 KR 1020080013037 A KR1020080013037 A KR 1020080013037A KR 20080013037 A KR20080013037 A KR 20080013037A KR 100918656 B1 KR100918656 B1 KR 100918656B1
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KR
South Korea
Prior art keywords
light
liquid crystal
light guide
crystal display
display device
Prior art date
Application number
KR1020080013037A
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English (en)
Korean (ko)
Other versions
KR20090014080A (ko
Inventor
카츠히코 키시다
Original Assignee
엘지디스플레이 주식회사
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Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Publication of KR20090014080A publication Critical patent/KR20090014080A/ko
Application granted granted Critical
Publication of KR100918656B1 publication Critical patent/KR100918656B1/ko

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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
    • G02F1/133603—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
    • 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
    • G09G3/3406—Control of illumination source

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Planar Illumination Modules (AREA)
KR1020080013037A 2007-08-03 2008-02-13 액정표시장치의 백라이트 유닛 KR100918656B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007203528A JP5602338B2 (ja) 2007-08-03 2007-08-03 液晶表示装置
JPJP-P-2007-00203528 2007-08-03

Publications (2)

Publication Number Publication Date
KR20090014080A KR20090014080A (ko) 2009-02-06
KR100918656B1 true KR100918656B1 (ko) 2009-09-22

Family

ID=40439096

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080013037A KR100918656B1 (ko) 2007-08-03 2008-02-13 액정표시장치의 백라이트 유닛

Country Status (2)

Country Link
JP (1) JP5602338B2 (ja)
KR (1) KR100918656B1 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070016595A (ko) * 2005-08-04 2007-02-08 주식회사 나모텍 액정 디스플레이 장치용 반사판 및 이를 이용한 백라이트유닛
KR20070046237A (ko) * 2005-10-29 2007-05-03 엘지.필립스 엘시디 주식회사 엘이디 백라이트어셈블리 및 이를 이용한 액정표시장치모듈

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003248463A (ja) * 2002-02-25 2003-09-05 Matsushita Electric Ind Co Ltd 液晶表示装置
KR100878269B1 (ko) * 2002-06-18 2009-01-13 삼성전자주식회사 시간 분할 색상 표시 방식의 액정 표시 장치와 그 구동방법 및 백라이트 장치
TWI317922B (en) * 2004-12-13 2009-12-01 Chi Mei Optoelectronics Corp Liquid crystal display and driving method thereof
JP4690879B2 (ja) * 2005-12-12 2011-06-01 東芝モバイルディスプレイ株式会社 液晶表示装置
KR101231840B1 (ko) * 2005-12-28 2013-02-08 엘지디스플레이 주식회사 액정 표시 장치 및 그의 구동 방법

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070016595A (ko) * 2005-08-04 2007-02-08 주식회사 나모텍 액정 디스플레이 장치용 반사판 및 이를 이용한 백라이트유닛
KR20070046237A (ko) * 2005-10-29 2007-05-03 엘지.필립스 엘시디 주식회사 엘이디 백라이트어셈블리 및 이를 이용한 액정표시장치모듈

Also Published As

Publication number Publication date
JP5602338B2 (ja) 2014-10-08
JP2009037163A (ja) 2009-02-19
KR20090014080A (ko) 2009-02-06

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