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 (enExample) |
| EP (1) | EP1203186A4 (enExample) |
| JP (2) | JP4343474B2 (enExample) |
| KR (2) | KR100968666B1 (enExample) |
| IL (2) | IL147483A0 (enExample) |
| TW (1) | TWI240091B (enExample) |
| WO (1) | WO2001004539A1 (enExample) |
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 |
| US6904225B2 (en) * | 2001-05-22 | 2005-06-07 | Nichia Corporation | Optical waveguide plate of surface light emitting apparatus |
| EP1415188B1 (en) * | 2001-08-06 | 2013-02-13 | MEI, Inc. | Document validator subassembly |
| 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 |
| TWI434084B (zh) * | 2010-07-23 | 2014-04-11 | Entire Technology Co Ltd | 反射均光導光裝置及具有該反射均光導光裝置的背光模組與液晶顯示器 |
| 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 |
| 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 |
| 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 |
| EP0503071A4 (en) * | 1990-09-04 | 1993-03-10 | Ohno Research And Development Laboratories Co., Ltd. | Plastic optical member having light diffusing layer on surface, and light quantity control member |
| JP2710465B2 (ja) * | 1990-09-12 | 1998-02-10 | 三菱レイヨン株式会社 | 面光源素子 |
| WO1992004648A1 (fr) * | 1990-09-12 | 1992-03-19 | Mitsubishi Rayon Co., Ltd. | Element plan servant de source de lumiere |
| EP0714348A4 (en) * | 1993-07-27 | 1998-05-06 | Physical Optics Corp | DEVICE FOR DESTRUCTURING AND SHAPING A LIGHT SOURCE |
| 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 |
| EP1666935A1 (en) * | 1996-10-25 | 2006-06-07 | Omron Corporation | Surface light source device and liquid crystal display device, portable telephone and information terminal using surface light source device |
| 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 EP EP00946967A patent/EP1203186A4/en not_active Ceased
- 2000-06-29 JP JP2001509912A patent/JP4343474B2/ja not_active Expired - Fee Related
- 2000-06-29 KR KR1020097011051A patent/KR100968666B1/ko not_active Expired - Lifetime
- 2000-06-29 WO PCT/US2000/018212 patent/WO2001004539A1/en not_active Ceased
- 2000-06-29 IL IL14748300A patent/IL147483A0/xx unknown
- 2000-06-29 KR KR1020027000223A patent/KR100920855B1/ko not_active Expired - Fee Related
-
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 |
|---|---|
| KR100968666B1 (ko) | 2010-07-06 |
| JP2009181962A (ja) | 2009-08-13 |
| KR100920855B1 (ko) | 2009-10-09 |
| JP2003504681A (ja) | 2003-02-04 |
| IL147483A0 (en) | 2002-08-14 |
| IL147483A (en) | 2008-11-03 |
| JP4689730B2 (ja) | 2011-05-25 |
| WO2001004539A1 (en) | 2001-01-18 |
| KR20020030077A (ko) | 2002-04-22 |
| JP4343474B2 (ja) | 2009-10-14 |
| EP1203186A4 (en) | 2002-08-14 |
| US6386721B1 (en) | 2002-05-14 |
| KR20090077838A (ko) | 2009-07-15 |
| EP1203186A1 (en) | 2002-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |