JP2016018785A - Oledの光アウトカップリング向上のための内側及び外側の組み合わせ取り出し層 - Google Patents
Oledの光アウトカップリング向上のための内側及び外側の組み合わせ取り出し層 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
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
- H10K50/805—Electrodes
- H10K50/81—Anodes
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3026—Top emission
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
【解決手段】OLED構造は内側取り出し層701を備える。内側取り出し層701は、デバイスの透明電極730の屈折率より大きい屈折率を有する材料と、材料と基板との間に配置された非平面的界面とを有する。内側取り出し層701と併せて、非平面的面を有する外側取り出し層702を備える。
【選択図】図7A
Description
10.2、若しくは10.3、又はより一般的には等式10.4によって与えることができ、r2=(x−xc)2+(y−yc)2である。等式10.1は、放物線形状のマイクロレンズを生成し、等式10.2は、二次多項式であって、球面状であると表される定曲率のマイクロレンズを記述する。等式10.3に従うマイクロレンズは、立体状と表される。
110 基板
115 アノード
120 正孔注入層
125 正孔輸送層
130 電子ブロッキング層
135 発光層
140 正孔ブロッキング層
145 電子輸送層
150 電子注入層
155 保護層
160 カソード
162 第一の導電層
164 第二の導電層
170 バリア層
200 反転させたOLED、デバイス
210 基板
215 カソード
220 発光層
225 正孔輸送層
230 アノード
301 有機層
302 透明アノード
303 基板
304 カソード
501 ソース
502 光線
503 光線
504 二度目
601 有機層
602 アノード
603 基板
604 カソード
610 材料、コーティング
620 EEL
701 内側取り出し層
702 外側取り出し層
710 電極
720 有機層
730 電極
740 基板
770 高屈折率材料
780 低屈折率材料
790 内側取り出し層
820 マイクロレンズ
821 接平面
822 内角
823 界面
824 軸
1810 段階
1820 段階
1830 段階
1840 段階
Claims (16)
- 基板と;
前記基板に近接して配置された第一の屈折率を有する透明な第一の電極と;
第二の電極と;
前記透明な第一の電極と前記第二の電極との間に配置された第二の屈折率を有する有機発光層と;
前記基板と前記透明な第一の電極との間に配置された内側取り出し層と、
を備える有機発光デバイスであって、
前記内側取り出し層は、前記第二の屈折率より少なくとも0.01大きい屈折率を有する第一の材料と;前記第一の材料と、前記第一の材料に近接する材料との間に非平面的界面と、を有することを特徴とする有機発光デバイス。 - 前記内側取り出し層が、更に、前記第一の材料の屈折率と異なる第三の屈折率を有する第二の材料を有する請求項1に記載のデバイス。
- 前記非平面的界面が、前記第一の材料と前記第二の材料との間の界面である請求項2に記載のデバイス。
- 前記内側取り出し層が、更に、前記第一の材料と前記基板との間に第二の非平面的界面を有する請求項3に記載のデバイス。
- 前記非平面的界面が、前記第一の材料と前記基板との間の界面である請求項1に記載のデバイス。
- 前記非平面的界面が、溝、ピラミッド状構造物、及びプリズム状構造物からなる群から選択されるトポグラフィーパターンを有する請求項5に記載のデバイス。
- 前記基板に近接して配置された外側取り出し層をさらに備え、
前記基板が、前記内側取り出し層と前記外側取り出し層との間に配置される請求項1に記載のデバイス。 - 前記基板が第一の材料を有し、前記外側取り出し層が前記第一の材料を有する請求項7に記載のデバイス。
- 前記非平面的界面が、溝、ピラミッド状構造物、及びプリズム状構造物からなる群から選択されるトポグラフィーパターンを有する請求項1に記載のデバイス。
- 前記外側取り出し層が、非平面的面を有する請求項7に記載のデバイス。
- 前記非平面的面が、溝、半球状構造物、及び軸対称な立体形状構造物からなる群から選択されるトポグラフィーパターンを有する請求項10に記載のデバイス。
- 前記外側取り出し層が、複数のマイクロレンズを有する請求項7に記載のデバイス。
- 複数のマイクロレンズの各マイクロレンズについて、前記マイクロレンズの面上の各点は、前記アウトカップリング層と前記有機発光デバイスとの界面に対して90度以下の内角を形成する接平面を有し、
前記複数のマイクロレンズの各マイクロレンズは、レンズ高さH及び最大底辺測定値2Rを有し、H/Rは1より大きい請求項12に記載のデバイス。 - 複数のマイクロレンズの各マイクロレンズが、連続関数rによって規定される厚さ形状を有し、rは、前記マイクロレンズの底辺の中心を通り、前記アウトカップリング層と前記有機発光デバイスとの界面に垂直な前記マイクロレンズの軸からの距離であり、rはR以下である請求項12に記載のデバイス。
- 複数のマイクロレンズのうち少なくとも一つのマイクロレンズが底辺測定値2R1を有し、前記複数のマイクロレンズのうち少なくとも一つのマイクロレンズが底辺測定値2R2を有し、R1はR2と異なる請求項12に記載のデバイス。
- 第一の屈折率を有する材料を含む基板の第一の面上に内側取り出し層パターンを形成することと;
前記第一の面と反対側の前記基板の第二の面上に外側取り出し層パターンを形成することと;
前記基板の前記第一の面の前記内側取り出し層パターン上に、前記第一の屈折率より少なくとも0.01大きい屈折率を有する材料を含む内側取り出し層を堆積することと;
前記内側取り出し層上にOLEDを作製することと、
を含むことを特徴とするOLEDを製造する方法。
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US14/325,509 | 2014-07-08 | ||
US14/325,509 US10115930B2 (en) | 2014-07-08 | 2014-07-08 | Combined internal and external extraction layers for enhanced light outcoupling for organic light emitting device |
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EP (1) | EP2966704B1 (ja) |
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US10115930B2 (en) * | 2014-07-08 | 2018-10-30 | Universal Display Corporation | Combined internal and external extraction layers for enhanced light outcoupling for organic light emitting device |
CN113363268A (zh) | 2014-12-18 | 2021-09-07 | 索尼公司 | 成像器件和移动设备 |
CN106981581A (zh) * | 2017-02-08 | 2017-07-25 | 广东工业大学 | 一种提高光取出率的有机电致发光器件 |
US10983388B2 (en) * | 2017-03-15 | 2021-04-20 | Lg Display Co., Ltd. | Display device |
KR102469498B1 (ko) * | 2017-12-29 | 2022-11-21 | 엘지디스플레이 주식회사 | 디스플레이 장치 |
GB2563937A (en) * | 2017-06-30 | 2019-01-02 | Sumitomo Chemical Co | Organic light emitting device |
US11362311B2 (en) | 2017-11-17 | 2022-06-14 | The Regents Of The University Of Michigan | Sub-electrode microlens array for organic light emitting devices |
CN111466037A (zh) * | 2017-12-19 | 2020-07-28 | 科迪华公司 | 具有改进光输出耦合的发光装置 |
CN112818540B (zh) * | 2021-01-29 | 2022-09-20 | 华南理工大学 | 一种Berreman矩阵对多层光学膜性能的预测方法 |
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