CN101813268A - 背光单元及使用该背光单元的液晶显示装置 - Google Patents
背光单元及使用该背光单元的液晶显示装置 Download PDFInfo
- Publication number
- CN101813268A CN101813268A CN201010003896A CN201010003896A CN101813268A CN 101813268 A CN101813268 A CN 101813268A CN 201010003896 A CN201010003896 A CN 201010003896A CN 201010003896 A CN201010003896 A CN 201010003896A CN 101813268 A CN101813268 A CN 101813268A
- Authority
- CN
- China
- Prior art keywords
- lgp
- thickness
- groove
- diffuser plate
- liquid crystal
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 41
- 238000005286 illumination Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 abstract description 6
- 235000019557 luminance Nutrition 0.000 description 23
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
- G02B6/008—Side-by-side arrangements, e.g. for large area displays of the partially overlapping type
-
- 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
- G02B6/0051—Diffusing sheet or layer
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133601—Illuminating devices for spatial active dimming
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-038094 | 2009-02-20 | ||
JP2009038094A JP5520497B2 (ja) | 2009-02-20 | 2009-02-20 | バックライトユニット、および、それを用いた液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101813268A true CN101813268A (zh) | 2010-08-25 |
CN101813268B CN101813268B (zh) | 2013-01-30 |
Family
ID=42620588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010100038960A Active CN101813268B (zh) | 2009-02-20 | 2010-01-15 | 背光单元及使用该背光单元的液晶显示装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US8111354B2 (zh) |
JP (1) | JP5520497B2 (zh) |
CN (1) | CN101813268B (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5520497B2 (ja) * | 2009-02-20 | 2014-06-11 | 日立コンシューマエレクトロニクス株式会社 | バックライトユニット、および、それを用いた液晶表示装置 |
KR101584280B1 (ko) * | 2009-07-20 | 2016-01-25 | 삼성디스플레이 주식회사 | 도광판 및 이를 포함하는 표시 장치 |
JP5401247B2 (ja) * | 2009-10-02 | 2014-01-29 | 日立コンシューマエレクトロニクス株式会社 | バックライトユニットおよびそれを用いた映像表示装置 |
US9075180B2 (en) * | 2012-06-12 | 2015-07-07 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Light guide plate and manufacturing method thereof and backlight module using same |
US10436969B2 (en) * | 2013-01-30 | 2019-10-08 | Ideal Industries Lighting Llc | Optical waveguide and luminaire incorporating same |
US9645303B2 (en) | 2013-03-15 | 2017-05-09 | Cree, Inc. | Luminaires utilizing edge coupling |
JP5583292B1 (ja) | 2014-02-07 | 2014-09-03 | 株式会社コスモライフ | ウォーターサーバー |
CN109416163B (zh) * | 2016-05-04 | 2021-05-04 | Lg伊诺特有限公司 | 照明模块 |
JP2018101521A (ja) | 2016-12-20 | 2018-06-28 | オムロン株式会社 | 導光板、面光源装置、表示装置及び電子機器 |
US10605980B2 (en) | 2017-06-04 | 2020-03-31 | Svv Technology Innovations, Inc. | Stepped light guide illumination systems |
US10749076B2 (en) * | 2017-06-29 | 2020-08-18 | Epistar Corporation | Light-emitting device |
US11199654B2 (en) | 2017-08-08 | 2021-12-14 | 3M Innovative Properties Company | Lightguide having recess of varying depth |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3373427B2 (ja) | 1998-03-31 | 2003-02-04 | 日東樹脂工業株式会社 | タンデム型面光源装置 |
US6916745B2 (en) | 2003-05-20 | 2005-07-12 | Fairchild Semiconductor Corporation | Structure and method for forming a trench MOSFET having self-aligned features |
KR100699266B1 (ko) | 2005-09-09 | 2007-03-27 | 삼성전자주식회사 | 백라이트 유닛과 이를 포함하는 표시장치 |
KR100780205B1 (ko) | 2006-04-21 | 2007-11-27 | 삼성전기주식회사 | 액정표시장치용 백라이트 유닛 |
JP2008103162A (ja) | 2006-10-18 | 2008-05-01 | Nichia Chem Ind Ltd | サイドライト型面光源装置 |
JP2008103200A (ja) | 2006-10-19 | 2008-05-01 | Harison Toshiba Lighting Corp | バックライト装置及びバックライト装置の駆動方法 |
WO2008050509A1 (fr) * | 2006-10-27 | 2008-05-02 | Sharp Kabushiki Kaisha | Dispositif source de lumière, dispositif de rétroéclairage et afficheur à cristaux liquides |
US7961271B2 (en) * | 2007-02-27 | 2011-06-14 | Seiko Instruments Inc. | Lighting device and display device provided with the same |
KR100982980B1 (ko) | 2007-05-15 | 2010-09-17 | 삼성엘이디 주식회사 | 면 광원 장치 및 이를 구비하는 lcd 백라이트 유닛 |
CN101308221B (zh) * | 2007-05-18 | 2011-06-08 | 中华映管股份有限公司 | 背光模块及其楔形板 |
CN101680632B (zh) * | 2007-07-27 | 2012-01-18 | 夏普株式会社 | 照明装置、显示装置和导光板 |
KR101441308B1 (ko) * | 2008-01-16 | 2014-11-03 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
JP5520497B2 (ja) * | 2009-02-20 | 2014-06-11 | 日立コンシューマエレクトロニクス株式会社 | バックライトユニット、および、それを用いた液晶表示装置 |
-
2009
- 2009-02-20 JP JP2009038094A patent/JP5520497B2/ja active Active
-
2010
- 2010-01-08 US US12/684,875 patent/US8111354B2/en active Active
- 2010-01-15 CN CN2010100038960A patent/CN101813268B/zh active Active
-
2011
- 2011-12-30 US US13/341,551 patent/US8325292B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101813268B (zh) | 2013-01-30 |
JP2010192395A (ja) | 2010-09-02 |
US20120147294A1 (en) | 2012-06-14 |
JP5520497B2 (ja) | 2014-06-11 |
US8111354B2 (en) | 2012-02-07 |
US8325292B2 (en) | 2012-12-04 |
US20100214508A1 (en) | 2010-08-26 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI MAXELL LTD. Free format text: FORMER OWNER: HITACHI LTD. Effective date: 20150304 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150304 Address after: Osaka Japan Patentee after: Hitachi Maxell, Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Consumer Electronics Co.,Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180301 Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Osaka Japan Patentee before: Hitachi Maxell, Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Kyoto Japan Patentee before: MAXELL HOLDINGS, Ltd. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220601 Address after: Kyoto Japan Patentee after: MAXELL HOLDINGS, Ltd. Address before: Kyoto Japan Patentee before: MAXELL, Ltd. |