JP4750831B2 - 導光板及びバックライトモジュール - Google Patents
導光板及びバックライトモジュール Download PDFInfo
- Publication number
- JP4750831B2 JP4750831B2 JP2008202379A JP2008202379A JP4750831B2 JP 4750831 B2 JP4750831 B2 JP 4750831B2 JP 2008202379 A JP2008202379 A JP 2008202379A JP 2008202379 A JP2008202379 A JP 2008202379A JP 4750831 B2 JP4750831 B2 JP 4750831B2
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light
- incident surfaces
- backlight module
- 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.)
- Active
Links
- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 14
- 238000009792 diffusion process Methods 0.000 description 10
- 238000005286 illumination Methods 0.000 description 10
- 238000007639 printing Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 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
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- G02B6/0013—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
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- 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
- 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
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)
Description
62、62’、92、92’ 入射面
64 反射面
640、84、85、94、94’、101,103 V字型微構成部
63、83 出射面
61,61’ 冷陰極管
611、611’ 反射カバー
Claims (5)
- 対向する両入射面と、
最上方の表面であって、前記両入射面に隣接する射出面と、
前記射出面に対向し、複数の微構成部を有する反射面と、
を含む導光板において、
前記複数の微構成部は、前記導光板における両入射面から等距離にある中心を対称軸として、寸法及び配列密度が前記中心から前記両入射面へ向かって小さくなり、
前記微構成部は前記反射面と第一底角及び第二底角を形成し、
前記複数の微構成部の各第一底角と前記反射面との各交点間の距離が、前記対称軸から前記両入射面にわたって同一であることを特徴とする導光板。 - 前記射出面は、前記反射面に設けた微構成部の方向と直交して配列した第二V字形微構成部を有し、
前記第二V字形微構成部は前記反射面から離れた導光板の外部に突出するように構成されることを特徴とする、請求項1記載の導光板。 - 前記両入射面には縦方向に周期的に並列した第三V字形微構成部が形成されることを特徴とする、請求項1記載の導光板。
- 前記第三V字形微構成部の構成は、密接の周期配列及び間断の周期配列の二種があることを特徴とする、請求項3記載の導光板。
- 対向する両入射面と、最上方の表面であって、前記両入射面に隣接する射出面と、前記射出面に対向し、複数の微構成部を有する反射面と、を含む導光板と、
前記両入射面に隣接する両線光源と、
を含むバックライトモジュールにおいて、
前記複数の微構成部は、前記導光板における両入射面から等距離にある中心を対称軸として、寸法及び配列密度が前記中心から前記両入射面へ向かって小さくなり、
前記微構成部は前記反射面と第一底角及び第二底角を形成し、
前記複数の微構成部の各第一底角と前記反射面との各交点間の距離が、前記対称軸から前記両入射面にわたって同一であることを特徴とするバックライトモジュール。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200410052363.6 | 2004-11-18 | ||
CNB2004100523636A CN100445827C (zh) | 2004-11-18 | 2004-11-18 | 导光板和背光模组 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005303401A Division JP2006147548A (ja) | 2004-11-18 | 2005-10-18 | 導光板及びバックライトモジュール |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008282825A JP2008282825A (ja) | 2008-11-20 |
JP2008282825A6 JP2008282825A6 (ja) | 2009-02-05 |
JP4750831B2 true JP4750831B2 (ja) | 2011-08-17 |
Family
ID=36386070
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005303401A Pending JP2006147548A (ja) | 2004-11-18 | 2005-10-18 | 導光板及びバックライトモジュール |
JP2008202379A Active JP4750831B2 (ja) | 2004-11-18 | 2008-08-05 | 導光板及びバックライトモジュール |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005303401A Pending JP2006147548A (ja) | 2004-11-18 | 2005-10-18 | 導光板及びバックライトモジュール |
Country Status (3)
Country | Link |
---|---|
US (1) | US7374329B2 (ja) |
JP (2) | JP2006147548A (ja) |
CN (1) | CN100445827C (ja) |
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CN105445835B (zh) * | 2006-10-31 | 2021-07-27 | 莫迪里斯控股有限责任公司 | 照明装置及照明系统 |
US7918600B2 (en) * | 2007-08-09 | 2011-04-05 | Panasonic Corporation | Planar illumination device and liquid crystal display device using the same |
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US20100002461A1 (en) * | 2008-07-02 | 2010-01-07 | Rong-Yaw Wu | Light guide bar with patterned surface to enhance light uniformity and intensity |
TWI363888B (en) * | 2008-09-22 | 2012-05-11 | Au Optronics Corp | Light guide plate, backlight module and liquid crystal dislay |
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JP2011146381A (ja) * | 2010-01-15 | 2011-07-28 | Lg Innotek Co Ltd | バックライトユニット及びこれを含む画像表示装置 |
DE102010018034A1 (de) * | 2010-04-23 | 2011-10-27 | Osram Opto Semiconductors Gmbh | Flächenlichtleiter und Flächenstrahler |
TWI421590B (zh) * | 2010-09-17 | 2014-01-01 | Au Optronics Corp | 可切換視角的顯示器及其背光模組 |
CN102455458B (zh) * | 2010-10-19 | 2013-07-10 | 颖台科技股份有限公司 | 导光装置与背光模块 |
JP5799233B2 (ja) * | 2011-08-23 | 2015-10-21 | パナソニックIpマネジメント株式会社 | 導光板、金型、および金型の加工方法 |
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-
2004
- 2004-11-18 CN CNB2004100523636A patent/CN100445827C/zh active Active
-
2005
- 2005-10-18 JP JP2005303401A patent/JP2006147548A/ja active Pending
- 2005-11-04 US US11/267,065 patent/US7374329B2/en active Active
-
2008
- 2008-08-05 JP JP2008202379A patent/JP4750831B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2006147548A (ja) | 2006-06-08 |
US7374329B2 (en) | 2008-05-20 |
CN100445827C (zh) | 2008-12-24 |
CN1779518A (zh) | 2006-05-31 |
US20060104093A1 (en) | 2006-05-18 |
JP2008282825A (ja) | 2008-11-20 |
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