JP5317978B2 - 光学ミクロ構造体を有する有機発光ダイオードデバイス - Google Patents
光学ミクロ構造体を有する有機発光ダイオードデバイス Download PDFInfo
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
Description
OLEDは、典型的には、ガラス、透明な可撓性フィルム、又は可撓性金属ホイルのような基材上に形成された薄いフィルム構造である。OLEDのための基材は、例えば、次の:有機ポリマー物質;ポリエチレンテレフタレート(「PET」);ポリアクリレート;ポリカーボネート;シリコーン;エポキシ樹脂;シリコーン官能化エポキシ樹脂;ポリエステル;ポリイミド;ポリエーテルスルホン;ポリエーテルイミド;ポリエチレンナフタレート(「PEN」);又は他の不透明若しくは半透明の物質のうちの1つを含んでもよい。基材はまた、例えば、ステンレス鋼及び金属ホイルのような不浸透性物質を含んでもよい。可撓性金属ホイルを包含する、ディスプレイデバイス基材の例は、次の論文に記載されており、それらのすべてが、本明細書に参考として組み込まれる:H.S.シン(H.S. Shin)ら、「可撓性金属ホイル上の4.1インチ上部放射AMOLED(10.4 cm (4.1 inch)Top-Emission AMOLED on Flexible Metal Foil)」、SID 05 DIGEST、1642〜1645ページ(2005);X.L.チュー(X.L. Zhu)ら、「有効な電子注入器として極薄Ybを有する非常に明るい及び効率的な上部放射OLED(Very Bright and Efficient Top-Emitting OLED with Ultra-Thin Yb as Effective Electron Injector)」、SID 06 DIGEST、1292〜1295ページ(2006);J.H.チェオン(J.H. Cheon)ら、「SOG平坦化を有する可撓性金属ホイル上の2.2インチの上部放射AMOLED(A 2.2-in. Top-Emission AMOLED on Flexible Metal Foil with SOG Planarization)」、SID 06 DIGEST、1354〜1357ページ(2006);H.K.チャン(H.K. Chung)ら、「モバイルディスプレイのためのAMOLED技術(AMOLED Technology for Mobile Displays)」、SID 06 DIGEST、1447〜1450ページ(2006);D.U.チン(D.U. Jin)ら、「ステンレス鋼ホイル上の5.6インチ可撓性フルカラー上部放射AMOLEDディスプレイ(14.2 cm(5.6-inch)Flexible Full Color Top Emission AMOLED Display on Stainless Steel Foil)」、SID 06 DIGEST、1855〜1857ページ(2006);及びA.クワン(A. Chwang)ら、「可撓性ステンレス鋼基材上のフルカラー100dpi AMOLEDディスプレイ(Full Color 100 dpi AMOLED Displays on Flexible Stainless Steel Substrates)」、SID 06 DIGEST、1858〜1861ページ(2006)。
図1〜6は、光学ミクロ構造体を有する端部放射OLEDデバイスを例示する断面図である。図1〜6は、縮尺比に従って示されておらず、及び寸法は特定の実施に基づいて調整され得る。図1は、デバイスのユニットセル100の代表的な断面を表しており、ユニットセルが繰り返されて、完全なOLED固体照明又はディスプレイデバイスを作製する。ユニットセル100は、光108を生成する端部放射OLED 104を包含する。ユニットセル100はまた、光108の少なくとも一部分を反射し、再指向させるために、任意の深さ103を有する任意の隙間101によりOLED 104から分離された、光学ミクロ構造体102を包含する。光学ミクロ構造体102は、OLEDからの光をユニットセル100の上部から外へと再指向させるための変向光学体として機能できる。変向光学体102は、OLED 104から放射された光に関して角度105で配置され、角度105はデバイス区域にわたって一定であってもよいし又は一定でなくてもよく、変向光学体はすべてが実質的に同じ角度105を有し得るし、又はそれらは異なる角度105も有し得ることを意味する。このようにして、変向光学体について様々な角度を微調整することによって、全体のデバイスは、光を異なる方向に指向させるように構成され得る。角度105は、例えば、光108の所望の反射及び再指向のために選択され得る。
図7aに示されるように、同じ構造モチーフ700に基づく端部放射ミクロ構造化OLEDデバイスのために、幾つかのパターンが可能である。1次元パターンは、向かい合う各端部に変向光学体702を有する一連の線状OLEDの波701を含む。各波及び変向光学体は共に、図1〜6に例示されるもののようなユニットセルを形成する。隙間が使用されるとき、図1〜6に関して記載される隙間に対応するトラフ703は、波を分離して、2つの要素間に放射OLED端部を形成する。
図11は、光学ミクロ構造体を有する空間変調された端部放射OLEDを有するデバイス1101を例示する図である。デバイス1101は、光学ミクロ構造体を有する端部放射OLEDの複数個1103、1104、1105、及び1106を支持する基材1102を包含し、それらの各々は、図1〜6、7a、及び7bに関して上記の構造体に対応してもよい。OLEDデバイス1103〜1106の各々は、線1107及び1108によって表されるように、個々に制御され得、これらの線はデバイス1103〜1106中のアノード及びカソードへの電気接続を提供する。デバイス1101は、電気接続を有するOLEDデバイス1103〜1106のいずれかの数を包含することができ、基材1102は、それらを収容するような大きさにすることができる。接続1107及び1108を介するデバイス1103〜1106の個々の制御は、それらが個々に又はグループとして特定の順序又はパターンにおいて光を発するように、それらの空間変調を提供できる。デバイス1101は、固体照明中に使用されることができ、例えば剛性の又は可撓性の基材1102の上に使用されることができる。
Claims (2)
- 端部放射有機発光ダイオード(OLED)デバイスであって、
基材と、
前記基材の表面にオーバーレイする有機エレクトロルミネセント層であって、前記有機エレクトロルミネセント層が端部放射OLEDを形成する、有機エレクトロルミネセント層と、
前記基材上に形成され、前記有機エレクトロルミネセント層から分離した複数個の光学ミクロ構造体と、を含み、前記光学ミクロ構造体の各々が、前記端部放射OLEDからの光を反射し、再指向させるための変向光学体を画定し、前記光学ミクロ構造体は、前記基材の表面に隙間を形成することにより前記エレクトロルミネセント層から分離した部分に形成してなり、
前記変向光学体は、前記端部放射OLEDからの光が前記基材を通るように指向させる端部放射有機発光ダイオード(OLED)デバイス。 - 端部放射有機発光ダイオード(OLED)デバイスを製作する方法であって、
基材を提供する工程と、
端部放射OLEDを形成する際に使用するために、前記基材の表面に硬化可能な有機エレクトロルミネセント層を適用する工程と、
前記基材の表面に隙間を形成することにより前記有機エレクトロルミネセント層から分離された前記基材の部分に複数個の光学ミクロ構造体を形成する工程と、
前記硬化可能な有機層を硬化する工程と、
金属層を、前記有機エレクトロルミネセント層を覆って適用して電極コンタクト層を形成し、及び前記光学ミクロ構造体を覆って適用して前記端部放射OLEDからの光を反射し、再指向させるための変向光学体を形成する工程と、を含み、
前記変向光学体は、前記端部放射OLEDからの光が前記基材を通るように指向させる、端部放射有機発光ダイオード(OLED)デバイスを製作する方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/561,997 | 2006-11-21 | ||
US11/561,997 US20080117362A1 (en) | 2006-11-21 | 2006-11-21 | Organic Light Emitting Diode Devices With Optical Microstructures |
PCT/US2007/083738 WO2008063864A1 (en) | 2006-11-21 | 2007-11-06 | Organic light emitting diode devices with optical microstructures |
Publications (3)
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JP2010510628A JP2010510628A (ja) | 2010-04-02 |
JP2010510628A5 JP2010510628A5 (ja) | 2010-12-24 |
JP5317978B2 true JP5317978B2 (ja) | 2013-10-16 |
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US (1) | US20080117362A1 (ja) |
JP (1) | JP5317978B2 (ja) |
KR (1) | KR101431467B1 (ja) |
TW (1) | TWI445226B (ja) |
WO (1) | WO2008063864A1 (ja) |
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JP2014135183A (ja) * | 2013-01-09 | 2014-07-24 | Ricoh Opt Ind Co Ltd | 有機el発光デバイス及びその製造方法 |
WO2016064947A1 (en) | 2014-10-23 | 2016-04-28 | Corning Incorporated | A light diffusing component and a method of manufacturing a light diffusing component |
US20170254488A1 (en) * | 2016-03-04 | 2017-09-07 | 3M Innovative Properties Company | Color shift sign |
DE102017110605A1 (de) * | 2016-05-17 | 2017-11-23 | Osram Opto Semiconductors Gmbh | Optoelektronische Leuchtvorrichtung, Videowand-Modul und Signalgeber für eine Lichtsignalanlage |
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- 2007-11-06 JP JP2009537270A patent/JP5317978B2/ja active Active
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JP2010510628A (ja) | 2010-04-02 |
TWI445226B (zh) | 2014-07-11 |
KR101431467B1 (ko) | 2014-08-20 |
KR20090091716A (ko) | 2009-08-28 |
US20080117362A1 (en) | 2008-05-22 |
TW200832774A (en) | 2008-08-01 |
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