JP5013048B2 - 赤色有機発光素子およびこれを備えた表示装置 - Google Patents
赤色有機発光素子およびこれを備えた表示装置 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
- B41M5/38214—Structural details, e.g. multilayer systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having a potential-jump barrier or a surface barrier
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/484—Insulated gate field-effect transistors [IGFETs] characterised by the channel regions
- H10K10/488—Insulated gate field-effect transistors [IGFETs] characterised by the channel regions the channel region comprising a layer of composite material having interpenetrating or embedded materials, e.g. a mixture of donor and acceptor moieties, that form a bulk heterojunction
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- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
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Description
図4は、この工程に用いられるドナー基板の構成を、転写層を形成しない未使用の状態で表したものである。ドナー基板100は、基体110の表面側、すなわち基板11と対向する側に、反射層120および吸収層130を有している。基体110は、基板11との位置合わせが可能な堅固さを有すると共に、レーザ光に対する透過性の高い材料、例えばガラスまたはアクリル等の樹脂により構成されている。反射層120は、例えば銀(Ag)または銀(Ag)を含む合金など反射率の高い金属材料により構成されている。このほか、長波長域に限れば、反射層120の構成材料は、金(Au),銅(Cu)あるいはこれらを含む合金でもよい。吸収層130は、例えば、クロム(Cr),モリブデン(Mo),チタン(Ti)あるいはこれらを含む合金など吸収率の高い金属材料により構成されている。吸収層130は、炭素(C)または黒色顔料により構成されていてもよい。
このドナー基板100に対して、まず、図6(A)に示したように、基体110の表面側全面に、例えば真空蒸着により、上述した赤色発光材料を含む赤色転写層200Rを形成する(ステップS201)。
そののち、図8に示したように、ドナー基板100と基板11とを対向配置し、基体110の裏面側からレーザ光LB2を照射することにより、赤色転写層200Rと、緑色転写層200Gのうち非転写領域100NP以外の部分とを基板11に一括転写する(ステップS300)。これにより、図9に示したように、赤色有機発光素子10Rの形成予定領域10R1には混合層14RCが形成されると同時に、緑色有機発光素子10Gの形成予定領域10G1には緑色単色層14GCが形成される。このとき、非転写領域100NPに反射層120を設けたので、従来のようにレーザ光のスポット形状を成形して所定領域に選択的に照射するという複雑な工程は不要となり、レーザ光LB2を成形せずに全面照射しつつ非転写領域100NPの緑色転写層200Gのみを転写せずに残存させることができる。レーザ光LB2としては例えば波長800nmの半導体レーザ光を用い、照射条件としては例えば0.3mW/μm2 、スキャン速度50mm/sとすることができる。
一方、一括転写工程を行った後の基板11については、図11に示したように、例えば蒸着により、上述した青色発光材料を含む青色単色層14Dを全面成膜する(ステップS401)。これにより、従来のように発光色数と同じく三回の転写を行う必要はなくなり、転写回数は一回に減らすことができる。
図13は、本発明の変形例に係るドナー基板の構成を未使用の状態で表したものである
。このドナー基板100は、非転写領域100NPが、基板11における赤色有機発光素子10Rと緑色有機発光素子10Gとの境界領域に対応している。これにより、このドナー基板100では、一括転写工程において混合層14RCと緑色単色層14GCとの境界を明確に形成することができ、混色を確実に抑制することができるようになっている。なお、図13では、図4に示したような基体110の表面側全面に吸収層130を形成し、部分的に反射層120を設けたドナー基板100において、境界領域に対応して吸収層130と基体110との間に反射層120を追加的に形成した場合を表している。
Claims (2)
- 基板に、第1電極と、赤色発光材料および緑色発光材料と正孔輸送性材料,電子輸送性材料および両電荷輸送性材料のうち少なくとも1種とを含む混合層を有する赤色有機層と、第2電極とを順に備え、
前記赤色発光材料は、2,6−ビス[(4’−メトキシジフェニルアミノ)スチリル]−1,5−ジシアノナフタレン(BSN)であり、
前記緑色発光材料は、クマリン6(Coumarin6)であり、
前記正孔輸送性材料,前記電子輸送性材料および両電荷輸送性材料のうち少なくとも1種は、ADN(ジ(2−ナフチル)アントラセン)である
赤色有機発光素子。 - 基板に、第1電極と、赤色発光材料および緑色発光材料と正孔輸送性材料,電子輸送性材料および両電荷輸送性材料のうち少なくとも1種とを含む混合層を有する赤色有機層と、第2電極とを順に有する赤色有機発光素子を備え、
前記赤色発光材料は、2,6−ビス[(4’−メトキシジフェニルアミノ)スチリル]−1,5−ジシアノナフタレン(BSN)であり、
前記緑色発光材料は、クマリン6(Coumarin6)であり、
前記正孔輸送性材料,前記電子輸送性材料および両電荷輸送性材料のうち少なくとも1種は、ADN(ジ(2−ナフチル)アントラセン)である
表示装置。
Priority Applications (8)
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JP2006104991A JP5013048B2 (ja) | 2006-04-06 | 2006-04-06 | 赤色有機発光素子およびこれを備えた表示装置 |
TW096112191A TW200807781A (en) | 2006-04-06 | 2007-04-04 | Red organic electroluminescent element, display having same element, donor substrate, transcriptional method using same substrate, manufacturing method of same display, and manufacturing system of same display |
PCT/JP2007/057652 WO2007116934A1 (ja) | 2006-04-06 | 2007-04-05 | 赤色有機発光素子およびこれを備えた表示装置、ドナー基板およびこれを用いた転写方法、表示装置の製造方法、並びに表示装置の製造システム |
KR1020087022614A KR101355413B1 (ko) | 2006-04-06 | 2007-04-05 | 적색 유기 발광소자 및 이것을 구비한 표시장치, 도너 기판및 이것을 사용한 전사 방법, 표시장치의 제조 방법, 및 표시장치의 제조 시스템 |
US12/295,431 US8129004B2 (en) | 2006-04-06 | 2007-04-05 | Donor substrate and transfer method using same, method of manufacturing display device, and system of manufacturing display device |
CN200780012366.9A CN101416328A (zh) | 2006-04-06 | 2007-04-05 | 红色有机发光元件及设置有该红色有机发光元件的显示装置,供体基板及使用该供体基板的转印方法,显示装置的制作方法和显示装置的制作系统 |
EP07741088A EP2003711A1 (en) | 2006-04-06 | 2007-04-05 | Red organic light emitting element and display device provided with same, donor substrate and transfer method using same, method of manufacturing display device, and system of manufacturing display device |
US13/280,606 US8597740B2 (en) | 2006-04-06 | 2011-10-25 | Red organic light emitting element and display device provided with same, donor substrate and transfer method using same, method of manufacturing display device, and system of manufacturing display device |
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JP2011277385A Division JP2012060174A (ja) | 2011-12-19 | 2011-12-19 | 表示装置 |
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US20120073735A1 (en) | 2012-03-29 |
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WO2007116934A1 (ja) | 2007-10-18 |
TW200807781A (en) | 2008-02-01 |
KR101355413B1 (ko) | 2014-01-24 |
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