JP5352739B2 - バックライトユニットおよび液晶表示装置 - Google Patents
バックライトユニットおよび液晶表示装置 Download PDFInfo
- Publication number
- JP5352739B2 JP5352739B2 JP2012521370A JP2012521370A JP5352739B2 JP 5352739 B2 JP5352739 B2 JP 5352739B2 JP 2012521370 A JP2012521370 A JP 2012521370A JP 2012521370 A JP2012521370 A JP 2012521370A JP 5352739 B2 JP5352739 B2 JP 5352739B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light guide
- backlight unit
- guide plate
- chassis
- 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.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 46
- 230000003287 optical effect Effects 0.000 claims description 15
- 238000005286 illumination Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material 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
- G02B6/0075—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
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, 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
- G02B6/0066—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Description
することができる。
2 バックライトユニット
3 光学シートユニット
4 バックライトシャーシ
41 反射シート
5 導光板
50 受光部
51 固定用凸部
52 出射部
53 張出部
6 固定用クリップ
61 係合部
62 押え部
7 LEDランプ
Claims (8)
- シャーシと、
前記シャーシ内に配列された複数個の導光板と、
前記導光板の隣り合うもの同士を同時に前記シャーシに固定する固定部材とを備えたバックライトユニットであって、
前記導光板は、正面側に形成され平面光を出射する出射部と、前記出射部と反対側に形成され、隣り合う導光板に向かって突出し、前記固定部材で押えられる固定用凸部とを備えており、
前記出射部が、正面から見て少なくとも前記固定用凸部の一部を覆うように張り出した張出部を備えていることを特徴とするバックライトユニット。 - 前記張出部は、前記複数個の導光板が前記シャーシ内に配列されているとき、隣接した導光板の張出部と接触しないように形成されている請求項1に記載のバックライトユニット。
- 前記出射部の前記平面光を出射する部分が、凸曲面で形成されている請求項1又は請求項2に記載のバックライトユニット。
- 前記出射部の前記平面光を出射する部分が、2個以上の平面をつなぎ合わせ、前記導光板の配列方向と交差する方向に延びる稜線を備えた形状である請求項1又は請求項2に記載のバックライトユニット。
- 前記複数個の導光板が前記シャーシに配列されたとき、隣接した導光板の前記張出部同士が接触するように形成されている請求項1に記載のバックライトユニット。
- 前記各導光板は、前記出射部に光を拡散させる光学部材がそれぞれ個別に取り付けられている請求項1から請求項5のいずれかに記載のバックライトユニット。
- 前記張出部は、前記平面光が出射する面に向かって、徐々に広がるように形成されている請求項1から請求項6のいずれかに記載のバックライトユニット。
- 請求項1から請求項7に記載のバックライトユニットを照明装置して用いていることを特徴とする液晶表示装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012521370A JP5352739B2 (ja) | 2010-06-24 | 2011-05-10 | バックライトユニットおよび液晶表示装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010143881 | 2010-06-24 | ||
JP2010143881 | 2010-06-24 | ||
JP2012521370A JP5352739B2 (ja) | 2010-06-24 | 2011-05-10 | バックライトユニットおよび液晶表示装置 |
PCT/JP2011/060710 WO2011162032A1 (ja) | 2010-06-24 | 2011-05-10 | バックライトユニットおよび液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2011162032A1 JPWO2011162032A1 (ja) | 2013-08-19 |
JP5352739B2 true JP5352739B2 (ja) | 2013-11-27 |
Family
ID=45371234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012521370A Expired - Fee Related JP5352739B2 (ja) | 2010-06-24 | 2011-05-10 | バックライトユニットおよび液晶表示装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8801261B2 (ja) |
EP (1) | EP2587112A4 (ja) |
JP (1) | JP5352739B2 (ja) |
CN (1) | CN102947640B (ja) |
WO (1) | WO2011162032A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9068730B2 (en) * | 2010-07-01 | 2015-06-30 | Sharp Kabushiki Kaisha | Edge light backlight unit and liquid crystal display device including same |
CN102767753A (zh) * | 2012-06-21 | 2012-11-07 | 深圳市华星光电技术有限公司 | 一种背光模组及液晶显示装置 |
CN106154392A (zh) * | 2015-04-27 | 2016-11-23 | 群创光电股份有限公司 | 显示设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756170A (ja) * | 1993-08-20 | 1995-03-03 | Citizen Watch Co Ltd | 照明装置 |
JPH1068826A (ja) * | 1996-07-23 | 1998-03-10 | Internatl Business Mach Corp <Ibm> | 液晶用バックライト装置 |
JP2006108045A (ja) * | 2004-10-08 | 2006-04-20 | Sharp Corp | 照明装置 |
JP2008034372A (ja) * | 2006-06-30 | 2008-02-14 | Toshiba Corp | 照明装置及び液晶表示装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004273185A (ja) | 2003-03-06 | 2004-09-30 | Sharp Corp | 面状照明装置およびこれを有する液晶表示装置 |
TWI289226B (en) * | 2004-12-24 | 2007-11-01 | Innolux Display Corp | Diffuser and backlight module using the same |
KR20070081564A (ko) * | 2006-02-13 | 2007-08-17 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 구비한 표시 장치 |
CN101097054B (zh) * | 2006-06-30 | 2010-06-02 | 株式会社东芝 | 照明装置和液晶显示器 |
TWI317433B (en) * | 2006-10-04 | 2009-11-21 | Ind Tech Res Inst | Light guide plate and back-lighted module having light guide plate |
TWI366713B (en) * | 2007-04-14 | 2012-06-21 | Hannstar Display Corp | Liquid crystal display and backlight module thereof |
US8104945B2 (en) * | 2007-12-27 | 2012-01-31 | Samsung Led Co., Ltd. | Backlight unit implementing local dimming for liquid crystal display device |
JP5403579B2 (ja) * | 2008-05-02 | 2014-01-29 | シチズン電子株式会社 | 面状光源及び液晶表示装置 |
US7905617B2 (en) * | 2008-09-23 | 2011-03-15 | Samsung LED. Co., Ltd. | Backlight unit |
BRPI0919453A2 (pt) * | 2008-09-30 | 2015-12-15 | Sharp Kk | dispositivo de iluminação, dispositivo de vídeo e receptor de televisão. |
MX2010008350A (es) | 2009-10-07 | 2011-05-27 | Sharp Kk | Modulo de fuente de luz y aparato electronico que incluye el mismo. |
JP4560579B1 (ja) * | 2009-10-09 | 2010-10-13 | シャープ株式会社 | 面光源装置 |
US8491174B2 (en) * | 2010-01-07 | 2013-07-23 | Rambus Delaware Llc | Light emitting assembly |
US9013652B2 (en) | 2010-12-06 | 2015-04-21 | Sharp Kabushiki Kaisha | Lighting device and liquid crystal display device provided with same |
-
2011
- 2011-05-10 JP JP2012521370A patent/JP5352739B2/ja not_active Expired - Fee Related
- 2011-05-10 WO PCT/JP2011/060710 patent/WO2011162032A1/ja active Application Filing
- 2011-05-10 CN CN201180029279.0A patent/CN102947640B/zh not_active Expired - Fee Related
- 2011-05-10 EP EP11797920.3A patent/EP2587112A4/en not_active Withdrawn
- 2011-05-10 US US13/704,703 patent/US8801261B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756170A (ja) * | 1993-08-20 | 1995-03-03 | Citizen Watch Co Ltd | 照明装置 |
JPH1068826A (ja) * | 1996-07-23 | 1998-03-10 | Internatl Business Mach Corp <Ibm> | 液晶用バックライト装置 |
JP2006108045A (ja) * | 2004-10-08 | 2006-04-20 | Sharp Corp | 照明装置 |
JP2008034372A (ja) * | 2006-06-30 | 2008-02-14 | Toshiba Corp | 照明装置及び液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2587112A4 (en) | 2014-07-09 |
US8801261B2 (en) | 2014-08-12 |
CN102947640B (zh) | 2014-11-19 |
US20130100702A1 (en) | 2013-04-25 |
JPWO2011162032A1 (ja) | 2013-08-19 |
CN102947640A (zh) | 2013-02-27 |
EP2587112A1 (en) | 2013-05-01 |
WO2011162032A1 (ja) | 2011-12-29 |
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