CN102954370B - 照明单元和使用该照明单元的显示装置 - Google Patents
照明单元和使用该照明单元的显示装置 Download PDFInfo
- Publication number
- CN102954370B CN102954370B CN201210277464.8A CN201210277464A CN102954370B CN 102954370 B CN102954370 B CN 102954370B CN 201210277464 A CN201210277464 A CN 201210277464A CN 102954370 B CN102954370 B CN 102954370B
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- Prior art keywords
- light
- guide plate
- pattern
- dim
- emitting component
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- 230000003287 optical effect Effects 0.000 claims abstract description 22
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- 238000009792 diffusion process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-184271 | 2011-08-26 | ||
JP2011184271A JP5859772B2 (ja) | 2011-08-26 | 2011-08-26 | 照明ユニット及びこれを用いた表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102954370A CN102954370A (zh) | 2013-03-06 |
CN102954370B true CN102954370B (zh) | 2015-07-22 |
Family
ID=46829619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210277464.8A Active CN102954370B (zh) | 2011-08-26 | 2012-08-06 | 照明单元和使用该照明单元的显示装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8690407B2 (zh) |
EP (1) | EP2562590B1 (zh) |
JP (1) | JP5859772B2 (zh) |
CN (1) | CN102954370B (zh) |
BR (1) | BR102012019555B1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014086406A (ja) * | 2012-10-26 | 2014-05-12 | Funai Electric Co Ltd | 表示装置 |
RU2016105155A (ru) | 2013-07-19 | 2017-08-24 | Филипс Лайтинг Холдинг Б.В. | Светоизлучающее устройство и способ уменьшения яркости светоизлучающего устройства |
JP6818360B2 (ja) * | 2017-03-31 | 2021-01-20 | 株式会社Ctnb | 配光制御素子、配光調整手段、反射部材、補強板、照明ユニット、ディスプレイ及びテレビ受信機 |
US10908017B2 (en) | 2017-10-02 | 2021-02-02 | Microsoft Technology Licensing, Llc | Multiple light source output smoothing |
KR102400975B1 (ko) | 2017-10-23 | 2022-05-23 | 삼성전자주식회사 | 디스플레이 장치 |
US10511135B2 (en) | 2017-12-19 | 2019-12-17 | Raytheon Company | Laser system with mechanically-robust monolithic fused planar waveguide (PWG) structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1782814A (zh) * | 2004-11-26 | 2006-06-07 | Nec液晶技术株式会社 | 背光单元及使用该背光单元的液晶显示设备 |
CN1853068A (zh) * | 2003-09-19 | 2006-10-25 | 索尼株式会社 | 背光装置和液晶显示装置 |
CN101939695A (zh) * | 2008-11-14 | 2011-01-05 | Lg伊诺特有限公司 | 液晶显示设备和制造导光板的方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003242817A (ja) | 2002-02-13 | 2003-08-29 | Matsushita Electric Ind Co Ltd | バックライト装置 |
TW587708U (en) * | 2002-12-17 | 2004-05-11 | Hon Hai Prec Ind Co Ltd | Large size light guide plate and surface lighting system using the same |
US7468710B2 (en) * | 2003-06-09 | 2008-12-23 | Rohm Co., Ltd. | Light emitting display device |
JP2005005067A (ja) | 2003-06-11 | 2005-01-06 | Sanyo Electric Co Ltd | 面光源装置 |
KR100989338B1 (ko) * | 2003-07-01 | 2010-10-25 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 갖는 액정표시장치 |
JP2005117023A (ja) | 2003-09-19 | 2005-04-28 | Sony Corp | バックライト装置及び液晶表示装置 |
JP4420813B2 (ja) * | 2004-12-28 | 2010-02-24 | 株式会社エンプラス | 面光源装置及び表示装置 |
JP5170988B2 (ja) * | 2006-07-03 | 2013-03-27 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
US8317386B2 (en) * | 2006-07-24 | 2012-11-27 | Panasonic Corporation | Laser-lit planar illumination device and LCD using such device |
JP2010040236A (ja) * | 2008-08-01 | 2010-02-18 | Epson Imaging Devices Corp | 照明装置、電気光学装置及び電子機器 |
CN102177391B (zh) | 2008-10-09 | 2013-08-14 | 夏普株式会社 | 照明装置、显示装置和电视接收装置 |
RU2496051C2 (ru) * | 2009-05-15 | 2013-10-20 | Шарп Кабусики Кайся | Устройство освещения, устройство отображения и телевизионный приемник |
KR101255287B1 (ko) * | 2009-07-16 | 2013-04-15 | 엘지디스플레이 주식회사 | 백라이트 유닛 |
EP2470952B1 (en) * | 2009-08-27 | 2016-02-10 | LG Electronics Inc. | Backlight unit and display device |
JP2012033420A (ja) | 2010-08-02 | 2012-02-16 | Hitachi Consumer Electronics Co Ltd | 照明装置及びこれを用いた表示装置 |
-
2011
- 2011-08-26 JP JP2011184271A patent/JP5859772B2/ja active Active
-
2012
- 2012-08-03 BR BR102012019555-0A patent/BR102012019555B1/pt active IP Right Grant
- 2012-08-03 EP EP12179252.7A patent/EP2562590B1/en active Active
- 2012-08-06 US US13/567,662 patent/US8690407B2/en active Active
- 2012-08-06 CN CN201210277464.8A patent/CN102954370B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1853068A (zh) * | 2003-09-19 | 2006-10-25 | 索尼株式会社 | 背光装置和液晶显示装置 |
CN1782814A (zh) * | 2004-11-26 | 2006-06-07 | Nec液晶技术株式会社 | 背光单元及使用该背光单元的液晶显示设备 |
CN101939695A (zh) * | 2008-11-14 | 2011-01-05 | Lg伊诺特有限公司 | 液晶显示设备和制造导光板的方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2013045731A (ja) | 2013-03-04 |
CN102954370A (zh) | 2013-03-06 |
EP2562590B1 (en) | 2014-03-12 |
EP2562590A1 (en) | 2013-02-27 |
US20130051065A1 (en) | 2013-02-28 |
JP5859772B2 (ja) | 2016-02-16 |
BR102012019555A2 (pt) | 2013-07-30 |
US8690407B2 (en) | 2014-04-08 |
BR102012019555B1 (pt) | 2020-08-25 |
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C10 | Entry into substantive examination | ||
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Owner name: HITACHI MAXELL LTD. Free format text: FORMER OWNER: HITACHI LTD. Effective date: 20150303 |
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C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20150303 Address after: Osaka Japan Applicant after: Hitachi Maxell, Ltd. Address before: Tokyo, Japan Applicant before: Hitachi Consumer Electronics Co.,Ltd. |
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Effective date of registration: 20180302 Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Osaka Japan Patentee before: Hitachi Maxell, Ltd. |
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Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Kyoto Japan Patentee before: MAXELL HOLDINGS, Ltd. |
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Effective date of registration: 20220530 Address after: Kyoto Japan Patentee after: MAXELL HOLDINGS, Ltd. Address before: Kyoto Japan Patentee before: MAXELL, Ltd. |
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