KR20090014080A - 액정표시장치의 백라이트 유닛 - Google Patents
액정표시장치의 백라이트 유닛 Download PDFInfo
- Publication number
- KR20090014080A KR20090014080A KR1020080013037A KR20080013037A KR20090014080A KR 20090014080 A KR20090014080 A KR 20090014080A KR 1020080013037 A KR1020080013037 A KR 1020080013037A KR 20080013037 A KR20080013037 A KR 20080013037A KR 20090014080 A KR20090014080 A KR 20090014080A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- light guide
- backlight unit
- liquid crystal
- crystal display
- Prior art date
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Classifications
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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
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- 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)
Abstract
Description
Claims (7)
- 액정패널의 배면으로부터 광을 조사하는 액정표시장치의 백라이트 유닛에 있어서,기판과,상기 기판상에 배치되고 복수 영역으로 분할된 분할영역마다 개별로 구동되는 광원부와,상기 광원부의 광방사측에 배치된 확산 시트부와,상기 복수 영역의 각 경계부에 위치하도록 상기 기판상에 고정·입설되어 광분할 반사벽이 되는 라이트 가이드를 구비하고,상기 라이트 가이드는 중앙부가 가장 높고, 상기 중앙부로부터 벽과 벽이 교차하는 단부로 향해 낮게되는 정부를 갖는 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 1 항에 있어서, 상기 라이트 가이드의 정부는 상기 중앙부로부터 상기 단부로 향해서 원호형상으로 형성되어 있는 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 2 항에 있어서, 상기 라이트 가이드의 정부는 상기 광원부측이 철(凸)형상인 2개의 원호로 형성된 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 2 항에 있어서, 상기 라이트 가이드의 정부는 상기 확산 시트부측이 철(凸)형상인 하나의 원호로 형성된 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 1 항에 있어서, 상기 라이트 가이드의 정부는 삼각형상으로 형성된 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 1 항에 있어서, 상기 라이트 가이드의 정부는 사각형상으로 형성된 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
- 제 1 항 내지 제 6 항의 어느 하나의 항에 있어서, 상기 라이트 가이드는 상기 정부에 있어서 가장 높은 중앙부가 상기 확산 시트부의 하부에 형성된 홈부내에 계합하여 고정되는 것을 특징으로 하는 액정표시장치의 백라이트 유닛.
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 true KR20090014080A (ko) | 2009-02-06 |
KR100918656B1 KR100918656B1 (ko) | 2009-09-22 |
Family
ID=40439096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020080013037A KR100918656B1 (ko) | 2007-08-03 | 2008-02-13 | 액정표시장치의 백라이트 유닛 |
Country Status (2)
Country | Link |
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JP (1) | JP5602338B2 (ko) |
KR (1) | KR100918656B1 (ko) |
Family Cites Families (7)
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 |
KR100716741B1 (ko) * | 2005-08-04 | 2007-05-14 | 주식회사 나모텍 | 액정 디스플레이 장치용 반사판 및 이를 이용한 백라이트유닛 |
KR101221391B1 (ko) * | 2005-10-29 | 2013-01-11 | 엘지디스플레이 주식회사 | 엘이디 백라이트어셈블리 및 이를 이용한 액정표시장치모듈 |
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 |
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2007
- 2007-08-03 JP JP2007203528A patent/JP5602338B2/ja not_active Expired - Fee Related
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2008
- 2008-02-13 KR KR1020080013037A patent/KR100918656B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
JP5602338B2 (ja) | 2014-10-08 |
JP2009037163A (ja) | 2009-02-19 |
KR100918656B1 (ko) | 2009-09-22 |
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