EP1000382A1 - Berührungsempfindlicher bildschirm mit front-beleuchtung - Google Patents

Berührungsempfindlicher bildschirm mit front-beleuchtung

Info

Publication number
EP1000382A1
EP1000382A1 EP99922623A EP99922623A EP1000382A1 EP 1000382 A1 EP1000382 A1 EP 1000382A1 EP 99922623 A EP99922623 A EP 99922623A EP 99922623 A EP99922623 A EP 99922623A EP 1000382 A1 EP1000382 A1 EP 1000382A1
Authority
EP
European Patent Office
Prior art keywords
touch panel
light
face
guide plate
light guide
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.)
Withdrawn
Application number
EP99922623A
Other languages
English (en)
French (fr)
Inventor
Takayuki Takagi
Takao Hashimoto
Tsutomu Mizoguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissha Printing Co Ltd
Original Assignee
Nissha Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP15182998A external-priority patent/JPH11344695A/ja
Priority claimed from JP33856698A external-priority patent/JP3003931B1/ja
Application filed by Nissha Printing Co Ltd filed Critical Nissha Printing Co Ltd
Publication of EP1000382A1 publication Critical patent/EP1000382A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133616Front illuminating devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00Layers
    • H01H2209/024Properties of the substrate
    • H01H2209/038Properties of the substrate transparent
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00Layers
    • H01H2209/068Properties of the membrane
    • H01H2209/082Properties of the membrane transparent
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/002Legends replaceable; adaptable
    • H01H2219/01Liquid crystal
    • H01H2219/012Liquid crystal programmable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • H01H2219/044Edge lighting of layer
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/054Optical elements
    • H01H2219/056Diffuser; Uneven surface
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/054Optical elements
    • H01H2219/062Light conductor

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Liquid Crystal (AREA)
  • Position Input By Displaying (AREA)
EP99922623A 1998-06-02 1999-06-01 Berührungsempfindlicher bildschirm mit front-beleuchtung Withdrawn EP1000382A1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP15182998A JPH11344695A (ja) 1998-06-02 1998-06-02 フロントライト一体型タッチパネル
JP15182998 1998-06-02
JP33856698 1998-11-30
JP33856698A JP3003931B1 (ja) 1998-11-30 1998-11-30 フロントライト一体型透明タッチパネル
PCT/JP1999/002916 WO1999063394A1 (en) 1998-06-02 1999-06-01 Touch screen with front lighting

Publications (1)

Publication Number Publication Date
EP1000382A1 true EP1000382A1 (de) 2000-05-17

Family

ID=26480941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99922623A Withdrawn EP1000382A1 (de) 1998-06-02 1999-06-01 Berührungsempfindlicher bildschirm mit front-beleuchtung

Country Status (6)

Country Link
EP (1) EP1000382A1 (de)
KR (1) KR100398755B1 (de)
CN (1) CN1272922A (de)
MY (1) MY130221A (de)
TW (1) TW412646B (de)
WO (1) WO1999063394A1 (de)

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW523627B (en) 1998-07-14 2003-03-11 Hitachi Ltd Liquid crystal display device
DE10000300A1 (de) * 1999-06-11 2000-12-14 Mannesmann Vdo Ag Flüssigkristallanzeige
EP1063561A1 (de) 1999-06-11 2000-12-27 Mannesmann VDO Aktiengesellschaft Flüssigkristallanzeige
JP3391762B2 (ja) 2000-03-01 2003-03-31 日本電気株式会社 フロントライトユニット及び液晶表示装置
JP2002214583A (ja) * 2000-12-28 2002-07-31 Nokia Mobile Phones Ltd タッチパネル一体型反射型lcd装置および電子装置
JP2002216585A (ja) * 2001-01-18 2002-08-02 Minebea Co Ltd 表示装置用タッチパネル
CA2442032A1 (en) * 2001-03-28 2002-10-10 Barbara Sexton Computer
US6738051B2 (en) * 2001-04-06 2004-05-18 3M Innovative Properties Company Frontlit illuminated touch panel
US6592234B2 (en) 2001-04-06 2003-07-15 3M Innovative Properties Company Frontlit display
JP2002333618A (ja) * 2001-05-07 2002-11-22 Nitto Denko Corp 反射型液晶表示装置
US6950680B2 (en) * 2001-09-17 2005-09-27 Nokia Corporation Electronic device
EP1443386A4 (de) * 2001-11-09 2006-11-02 Minebea Co Ltd Berührungstafelbaugruppe
US7180672B2 (en) 2002-05-20 2007-02-20 General Electric Company Optical substrate and method of making
US7859759B2 (en) 2002-05-20 2010-12-28 Sabic Innovative Plastics Ip B.V. Film, backlight displays, and methods for making the same
JP4212846B2 (ja) 2002-07-15 2009-01-21 アルプス電気株式会社 照明装置及び液晶表示装置
DE10237119B3 (de) 2002-08-13 2004-04-15 Fujitsu Siemens Computers Gmbh Anzeigevorrichtung
EP2204723A3 (de) * 2002-10-16 2010-07-21 Alps Electric Co., Ltd. Durchsichtige Koordinateneingabevorrichtung
JP3719433B2 (ja) 2002-10-30 2005-11-24 セイコーエプソン株式会社 表示装置及び電子機器
TWI289708B (en) 2002-12-25 2007-11-11 Qualcomm Mems Technologies Inc Optical interference type color display
TWI341983B (en) 2003-02-12 2011-05-11 Nissha Printing Touch panel
CN100395628C (zh) * 2003-05-10 2008-06-18 鸿富锦精密工业(深圳)有限公司 背光模组
GB0313044D0 (en) * 2003-06-06 2003-07-09 Cambridge Flat Projection Flat panel scanning illuminator
KR100981630B1 (ko) * 2003-11-17 2010-09-10 삼성전자주식회사 액정표시장치
US7072092B2 (en) 2003-12-31 2006-07-04 General Electric Company Optical substrate with modulated structure
US7342705B2 (en) 2004-02-03 2008-03-11 Idc, Llc Spatial light modulator with integrated optical compensation structure
US7813026B2 (en) 2004-09-27 2010-10-12 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
US7710632B2 (en) 2004-09-27 2010-05-04 Qualcomm Mems Technologies, Inc. Display device having an array of spatial light modulators with integrated color filters
US7630123B2 (en) 2004-09-27 2009-12-08 Qualcomm Mems Technologies, Inc. Method and device for compensating for color shift as a function of angle of view
US20060066586A1 (en) * 2004-09-27 2006-03-30 Gally Brian J Touchscreens for displays
US7265749B2 (en) * 2005-08-29 2007-09-04 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical generic switch panel
EP1975961B1 (de) * 2006-01-20 2016-06-22 Nissha Printing Co., Ltd. Lichtemittierender schalter von kapazitivem typ und lichtemittierendes schalterelement für solchen lichtemittierenden schalter vom kapazitiven typ
CN101600901A (zh) 2006-10-06 2009-12-09 高通Mems科技公司 集成于显示器的照明设备中的光学损失结构
US8872085B2 (en) 2006-10-06 2014-10-28 Qualcomm Mems Technologies, Inc. Display device having front illuminator with turning features
US7777954B2 (en) 2007-01-30 2010-08-17 Qualcomm Mems Technologies, Inc. Systems and methods of providing a light guiding layer
KR20080088324A (ko) * 2007-03-29 2008-10-02 삼성전자주식회사 키패드 어셈블리
KR101454171B1 (ko) * 2007-11-28 2014-10-27 삼성전자주식회사 반사형 디스플레이 장치 및 도광판의 제조 방법
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
US8721149B2 (en) 2008-01-30 2014-05-13 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
KR101501916B1 (ko) * 2008-02-22 2015-03-12 삼성전자주식회사 터치 입력 장치 및 그의 제조 방법
RU2010150142A (ru) * 2008-05-08 2012-06-20 Конинклейке Филипс Электроникс Н.В. (Nl) Осветительное устройство
EP2435867A1 (de) 2009-05-29 2012-04-04 Qualcomm Mems Technologies, Inc. Beleuchtungsvorrichtungen und herstellungsverfahren dafür
WO2010141388A1 (en) * 2009-06-01 2010-12-09 Qualcomm Mems Technologies, Inc. Front light based optical touch screen
CN201927010U (zh) * 2009-11-12 2011-08-10 北京汇冠新技术股份有限公司 一种触摸屏、触摸系统及光源
US8855929B2 (en) 2010-01-18 2014-10-07 Qualcomm Incorporated Using object to align and calibrate inertial navigation system
US8848294B2 (en) 2010-05-20 2014-09-30 Qualcomm Mems Technologies, Inc. Method and structure capable of changing color saturation
US9229089B2 (en) 2010-06-10 2016-01-05 Qualcomm Incorporated Acquisition of navigation assistance information for a mobile station
CN103217848A (zh) * 2010-08-09 2013-07-24 纬创资通股份有限公司 电子纸显示器
US8454181B2 (en) 2010-08-25 2013-06-04 Ford Global Technologies, Llc Light bar proximity switch
US8575949B2 (en) 2010-08-25 2013-11-05 Ford Global Technologies, Llc Proximity sensor with enhanced activation
US8427817B2 (en) * 2010-10-15 2013-04-23 Roche Diagnostics Operations, Inc. Handheld diabetes manager with touch screen display
US8902484B2 (en) 2010-12-15 2014-12-02 Qualcomm Mems Technologies, Inc. Holographic brightness enhancement film
US8975903B2 (en) 2011-06-09 2015-03-10 Ford Global Technologies, Llc Proximity switch having learned sensitivity and method therefor
US8928336B2 (en) 2011-06-09 2015-01-06 Ford Global Technologies, Llc Proximity switch having sensitivity control and method therefor
US10004286B2 (en) 2011-08-08 2018-06-26 Ford Global Technologies, Llc Glove having conductive ink and method of interacting with proximity sensor
WO2013028460A1 (en) * 2011-08-19 2013-02-28 Barnesandnoble.Com Llc Planar front illumination system having a light guide with micro lenses formed thereon and method of manufacturing the same
WO2013028467A1 (en) 2011-08-19 2013-02-28 Barnesandnoble.Com Llc Planar front illumination system having a light guide with micro scattering features formed thereon and method of manufacturing the same
US9143126B2 (en) 2011-09-22 2015-09-22 Ford Global Technologies, Llc Proximity switch having lockout control for controlling movable panel
US10112556B2 (en) 2011-11-03 2018-10-30 Ford Global Technologies, Llc Proximity switch having wrong touch adaptive learning and method
US8994228B2 (en) 2011-11-03 2015-03-31 Ford Global Technologies, Llc Proximity switch having wrong touch feedback
US8878438B2 (en) 2011-11-04 2014-11-04 Ford Global Technologies, Llc Lamp and proximity switch assembly and method
US9184745B2 (en) 2012-04-11 2015-11-10 Ford Global Technologies, Llc Proximity switch assembly and method of sensing user input based on signal rate of change
US9197206B2 (en) 2012-04-11 2015-11-24 Ford Global Technologies, Llc Proximity switch having differential contact surface
US9568527B2 (en) 2012-04-11 2017-02-14 Ford Global Technologies, Llc Proximity switch assembly and activation method having virtual button mode
US9831870B2 (en) 2012-04-11 2017-11-28 Ford Global Technologies, Llc Proximity switch assembly and method of tuning same
US9944237B2 (en) 2012-04-11 2018-04-17 Ford Global Technologies, Llc Proximity switch assembly with signal drift rejection and method
US9219472B2 (en) 2012-04-11 2015-12-22 Ford Global Technologies, Llc Proximity switch assembly and activation method using rate monitoring
US9065447B2 (en) 2012-04-11 2015-06-23 Ford Global Technologies, Llc Proximity switch assembly and method having adaptive time delay
US9531379B2 (en) 2012-04-11 2016-12-27 Ford Global Technologies, Llc Proximity switch assembly having groove between adjacent proximity sensors
US9559688B2 (en) 2012-04-11 2017-01-31 Ford Global Technologies, Llc Proximity switch assembly having pliable surface and depression
US8933708B2 (en) 2012-04-11 2015-01-13 Ford Global Technologies, Llc Proximity switch assembly and activation method with exploration mode
US9287864B2 (en) 2012-04-11 2016-03-15 Ford Global Technologies, Llc Proximity switch assembly and calibration method therefor
US9520875B2 (en) 2012-04-11 2016-12-13 Ford Global Technologies, Llc Pliable proximity switch assembly and activation method
US9660644B2 (en) 2012-04-11 2017-05-23 Ford Global Technologies, Llc Proximity switch assembly and activation method
US9136840B2 (en) 2012-05-17 2015-09-15 Ford Global Technologies, Llc Proximity switch assembly having dynamic tuned threshold
US8981602B2 (en) 2012-05-29 2015-03-17 Ford Global Technologies, Llc Proximity switch assembly having non-switch contact and method
US9337832B2 (en) 2012-06-06 2016-05-10 Ford Global Technologies, Llc Proximity switch and method of adjusting sensitivity therefor
US9641172B2 (en) 2012-06-27 2017-05-02 Ford Global Technologies, Llc Proximity switch assembly having varying size electrode fingers
US8922340B2 (en) 2012-09-11 2014-12-30 Ford Global Technologies, Llc Proximity switch based door latch release
CN103809785A (zh) * 2012-11-07 2014-05-21 致伸科技股份有限公司 触控显示器
US20140192006A1 (en) * 2013-01-04 2014-07-10 Amazon Technologies, Inc. Touch sensor integrated with a light guide
US9311204B2 (en) 2013-03-13 2016-04-12 Ford Global Technologies, Llc Proximity interface development system having replicator and method
CN104881185A (zh) * 2014-02-27 2015-09-02 宸鸿科技(厦门)有限公司 触控面板及其触控电极结构
US10038443B2 (en) 2014-10-20 2018-07-31 Ford Global Technologies, Llc Directional proximity switch assembly
US9654103B2 (en) 2015-03-18 2017-05-16 Ford Global Technologies, Llc Proximity switch assembly having haptic feedback and method
US9548733B2 (en) 2015-05-20 2017-01-17 Ford Global Technologies, Llc Proximity sensor assembly having interleaved electrode configuration
TWI609308B (zh) * 2016-12-22 2017-12-21 宏碁股份有限公司 顯示裝置及其製作方法
JP2020506525A (ja) * 2017-02-01 2020-02-27 コーニング インコーポレイテッド 光学的操作特徴部を含む導光板アセンブリ
CN111640370A (zh) * 2020-06-29 2020-09-08 京东方科技集团股份有限公司 粘接结构、显示装置及显示装置的粘接方法
CN112859441A (zh) * 2021-02-07 2021-05-28 捷开通讯(深圳)有限公司 显示装置
CN112946948A (zh) * 2021-02-08 2021-06-11 捷开通讯(深圳)有限公司 一种显示面板及显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970008351B1 (ko) * 1991-12-03 1997-05-23 샤프 가부시끼가이샤 액정 표시 장치
WO1993016410A1 (en) * 1992-02-14 1993-08-19 Raychem Corporation Front lit liquid crystal displays
US5339179A (en) * 1992-10-01 1994-08-16 International Business Machines Corp. Edge-lit transflective non-emissive display with angled interface means on both sides of light conducting panel
BE1007433A3 (nl) * 1993-07-30 1995-06-13 Philips Electronics Nv Platte beeldweergeefinrichting, belichtingsstelsel en stralingsbron geschikt voor toepassing in een dergelijke platte beeldweergeefinrichting.
JPH1165764A (ja) * 1997-08-26 1999-03-09 Matsushita Electric Ind Co Ltd タッチパネル付き液晶表示素子

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9963394A1 *

Also Published As

Publication number Publication date
WO1999063394A1 (en) 1999-12-09
MY130221A (en) 2007-06-29
TW412646B (en) 2000-11-21
CN1272922A (zh) 2000-11-08
KR100398755B1 (ko) 2003-09-19
KR20010022536A (ko) 2001-03-15

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