TWI240091B - Light pipe having one or more integral diffusers - Google Patents
Light pipe having one or more integral diffusers Download PDFInfo
- Publication number
- TWI240091B TWI240091B TW089110734A TW89110734A TWI240091B TW I240091 B TWI240091 B TW I240091B TW 089110734 A TW089110734 A TW 089110734A TW 89110734 A TW89110734 A TW 89110734A TW I240091 B TWI240091 B TW I240091B
- Authority
- TW
- Taiwan
- Prior art keywords
- light
- light pipe
- patent application
- backlight assembly
- item
- Prior art date
Links
- 239000010410 layer Substances 0.000 claims abstract description 66
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 230000002708 enhancing effect Effects 0.000 claims abstract 3
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000002079 cooperative effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 201000009310 astigmatism Diseases 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 4
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 2
- 230000010354 integration Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 10
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- 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
- G02B6/005—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
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/349,280 US6386721B1 (en) | 1999-07-08 | 1999-07-08 | Light pipe having one or more integral diffusers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWI240091B true TWI240091B (en) | 2005-09-21 |
Family
ID=23371675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW089110734A TWI240091B (en) | 1999-07-08 | 2000-06-01 | Light pipe having one or more integral diffusers |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6386721B1 (https=) |
| EP (1) | EP1203186A4 (https=) |
| JP (2) | JP4343474B2 (https=) |
| KR (2) | KR100920855B1 (https=) |
| IL (2) | IL147483A0 (https=) |
| TW (1) | TWI240091B (https=) |
| WO (1) | WO2001004539A1 (https=) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3670949B2 (ja) * | 2000-09-27 | 2005-07-13 | 三洋電機株式会社 | 面光源装置 |
| PL343963A1 (en) * | 2000-11-16 | 2002-05-20 | Grzegorz Drozdowski | Edge-illuminated optical device |
| KR100788827B1 (ko) * | 2001-05-22 | 2007-12-27 | 니치아 카가쿠 고교 가부시키가이샤 | 면발광 장치의 도광판 |
| CN1328610C (zh) * | 2001-08-06 | 2007-07-25 | Mei公司 | 票据验证装置组件 |
| US6806642B2 (en) * | 2001-09-04 | 2004-10-19 | Durel Corporation | Light source with cascading dyes and BEF |
| US7192174B2 (en) * | 2002-04-01 | 2007-03-20 | Hunatech Co., Ltd. | Light guiding panel formed with minute recesses by a sand blasting process and a backlight unit using the same |
| US6846098B2 (en) * | 2002-05-16 | 2005-01-25 | Eastman Kodak Company | Light diffuser with variable diffusion |
| US7874487B2 (en) * | 2005-10-24 | 2011-01-25 | Cognex Technology And Investment Corporation | Integrated illumination assembly for symbology reader |
| US20060285352A1 (en) * | 2005-06-17 | 2006-12-21 | Lg.Philips Lcd Co., Ltd. | Optical device, apparatus and method for fabricating the optical device, backlight unit using the optical device, and liquid crystal display device using the backlight unit |
| CN100390812C (zh) * | 2005-11-18 | 2008-05-28 | 敦南科技股份有限公司 | 使用于皮纹读取器的测试工具 |
| US7909496B2 (en) * | 2006-02-01 | 2011-03-22 | Koninklijke Philips Electronics N.V. | Lighting system for creating an illuminated surface |
| JP2008286955A (ja) * | 2007-05-17 | 2008-11-27 | Mitsubishi Electric Corp | 表示パネル用バックライト装置及び液晶表示装置 |
| KR101391891B1 (ko) * | 2007-06-22 | 2014-05-07 | 삼성디스플레이 주식회사 | 도광판, 이의 제조방법 및 이를 포함하는 액정 표시 장치 |
| US20090067194A1 (en) * | 2007-09-11 | 2009-03-12 | World Properties, Inc. | Light guide with imprinted phosphor |
| CN102411163B (zh) * | 2010-07-23 | 2013-07-10 | 颖台科技股份有限公司 | 导光装置及具有导光装置的背光模块与液晶显示器 |
| TWI536335B (zh) * | 2012-04-13 | 2016-06-01 | 鴻海精密工業股份有限公司 | 發光二極體顯示單元及發光二極體顯示器 |
| CN103377591B (zh) * | 2012-04-13 | 2016-12-21 | 鸿富锦精密工业（深圳）有限公司 | 发光二极管显示单元及发光二极管显示器 |
| GB2506625A (en) | 2012-10-04 | 2014-04-09 | Bae Systems Plc | LCD backlight display |
| JP5937032B2 (ja) * | 2013-03-21 | 2016-06-22 | 株式会社東海理化電機製作所 | 表示装置 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183628A (en) * | 1976-05-20 | 1980-01-15 | Ebauches S.A. | Electronic watch and display device for such watch |
| US4802737A (en) * | 1986-04-28 | 1989-02-07 | Denton Peter R | Anti-relfection overlay device |
| WO1992004400A1 (fr) * | 1990-09-04 | 1992-03-19 | Ohno Research And Development Laboratories Co., Ltd. | Element optique en plastique comportant sur sa surface une couche de diffusion de la lumiere, et element de regulation de la quantite de lumiere diffusee |
| CA2068422A1 (en) * | 1990-09-12 | 1992-03-13 | Makoto Ohe | Surface light source element |
| JP2710465B2 (ja) * | 1990-09-12 | 1998-02-10 | 三菱レイヨン株式会社 | 面光源素子 |
| CA2168107C (en) * | 1993-07-27 | 2001-02-13 | Joel Petersen | Light source destructuring and shaping device |
| JPH08313712A (ja) * | 1995-05-17 | 1996-11-29 | Toppan Printing Co Ltd | 回折格子パターンおよびその作製方法 |
| US5961198A (en) * | 1996-02-02 | 1999-10-05 | Hitachi, Ltd. | Liquid crystal display device and method of manufacturing backlighting light guide panel therefor |
| US5926601A (en) * | 1996-05-02 | 1999-07-20 | Briteview Technologies, Inc. | Stacked backlighting system using microprisms |
| JP3769327B2 (ja) * | 1996-07-23 | 2006-04-26 | 大日本印刷株式会社 | プリズムレンズシート、バックライトシステム及び液晶表示装置 |
| WO1998013709A1 (en) * | 1996-09-24 | 1998-04-02 | Seiko Epson Corporation | Illuminating device and display using the device |
| JP3151830B2 (ja) * | 1996-10-25 | 2001-04-03 | オムロン株式会社 | 面光源装置ならびに面光源装置を用いた液晶表示装置，携帯電話機および情報端末機 |
| JPH10170915A (ja) * | 1996-12-12 | 1998-06-26 | Hitachi Ltd | 液晶表示装置 |
| JP3542059B2 (ja) * | 1997-03-26 | 2004-07-14 | クリエイト株式会社 | 導光板の作成方法 |
| JP3508907B2 (ja) * | 1997-06-27 | 2004-03-22 | 株式会社デンソー | 車両用信号灯具 |
| JP3379043B2 (ja) * | 1998-06-29 | 2003-02-17 | ミネベア株式会社 | 面状照明装置 |
| FI106323B (fi) * | 1998-12-30 | 2001-01-15 | Nokia Mobile Phones Ltd | Taustavalaistuksen valonjohdin litteälle näytölle |
-
1999
- 1999-07-08 US US09/349,280 patent/US6386721B1/en not_active Expired - Lifetime
-
2000
- 2000-06-01 TW TW089110734A patent/TWI240091B/zh not_active IP Right Cessation
- 2000-06-29 KR KR1020027000223A patent/KR100920855B1/ko not_active Expired - Fee Related
- 2000-06-29 IL IL14748300A patent/IL147483A0/xx unknown
- 2000-06-29 WO PCT/US2000/018212 patent/WO2001004539A1/en not_active Ceased
- 2000-06-29 KR KR1020097011051A patent/KR100968666B1/ko not_active Expired - Lifetime
- 2000-06-29 JP JP2001509912A patent/JP4343474B2/ja not_active Expired - Fee Related
- 2000-06-29 EP EP00946967A patent/EP1203186A4/en not_active Ceased
-
2002
- 2002-01-06 IL IL147483A patent/IL147483A/en active IP Right Grant
-
2009
- 2009-05-13 JP JP2009116838A patent/JP4689730B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009181962A (ja) | 2009-08-13 |
| JP4343474B2 (ja) | 2009-10-14 |
| KR100920855B1 (ko) | 2009-10-09 |
| KR100968666B1 (ko) | 2010-07-06 |
| EP1203186A4 (en) | 2002-08-14 |
| US6386721B1 (en) | 2002-05-14 |
| WO2001004539A1 (en) | 2001-01-18 |
| JP4689730B2 (ja) | 2011-05-25 |
| KR20090077838A (ko) | 2009-07-15 |
| EP1203186A1 (en) | 2002-05-08 |
| IL147483A (en) | 2008-11-03 |
| KR20020030077A (ko) | 2002-04-22 |
| IL147483A0 (en) | 2002-08-14 |
| JP2003504681A (ja) | 2003-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |