JP2011049159A - 発光装置の検査方法及び作製方法 - Google Patents
発光装置の検査方法及び作製方法 Download PDFInfo
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- JP2011049159A JP2011049159A JP2010167125A JP2010167125A JP2011049159A JP 2011049159 A JP2011049159 A JP 2011049159A JP 2010167125 A JP2010167125 A JP 2010167125A JP 2010167125 A JP2010167125 A JP 2010167125A JP 2011049159 A JP2011049159 A JP 2011049159A
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Images
Classifications
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- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- 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
- H10K50/13—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 comprising stacked EL layers within one EL unit
-
- 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
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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Abstract
【解決手段】複数のEL層が電荷発生層によって仕切られた厚い層を一対の電極間に有する発光素子に導電性の異物が混入した部位は、正常な部位が発光開始する電圧より低い電圧で強く発光する。本発明の一態様は、一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子に順方向に電圧を印加し、正常な部位が発光を開始する電圧よりも低い電圧で、1(cd/m2)以上の輝度で光る異常な発光部位を検出する。また、当該部位にレーザ光を照射して絶縁化する。
【選択図】図2
Description
本実施の形態では、一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子に生じる、短絡に至っていない潜在的な欠陥を検出する方法について説明する。
本実施の形態では発光素子の潜在的な欠陥の検出方法及び絶縁化方法を発光素子の作製装置と共に説明する。
本実施の形態では、一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子の一態様について詳細に説明する。次に、一対の電極間に電荷発生層によって仕切られた3つの異なる発光色のEL層を設けた発光素子について説明し、その発光素子の潜在的な欠陥を検出し、修正する方法を説明する。
本実施の形態では表示装置の潜在的な欠陥を検出し、修正する方法について説明する。検査対象とする発光装置について図8及び図9を用いて説明する。
本実施の形態では、実施の形態4に示した潜在的な欠陥が修復された発光装置をその一部に含む電子機器について説明する。実施の形態4に示した潜在的な欠陥が修復された発光装置を含む電子機器は異常発光する部位や激しい特性の変化や、長期の使用で短絡に至ったりする等の不具合が顕在化することがなく、信頼性に優れる。
402 画素部
403 ゲート側駆動回路
404 封止基板
405 シール材
407 空間
408 引き回し配線
409 FPC(フレキシブルプリントサーキット)
410 基板
411 スイッチング用TFT
412 電流制御用TFT
413 電極
414 絶縁物
416 発光物質を含む層
417 電極
418 発光素子
423 nチャネル型TFT
424 pチャネル型TFT
500 作製装置
510 試料台
511 支持機構
512 移動機構
520 検出系
521 撮像装置
530 照射系
531 レーザ装置
541 第1の光学系
541s 第1のシャッター
542 第2の光学系
542s 第2のシャッター
543 第3の光学系
545 ハーフミラー
550 制御系
551 制御装置
552 表示装置
560 発光素子
561 潜在的な欠陥
562a 異常発光する部位
562b 異常発光する部位
562c 異常発光する部位
562d 異常発光する部位
562e 異常発光する部位565 端子部
571 駆動装置
572 外部電源
951 基板
952 第1の電極
953 絶縁層
954 隔壁層
955 発光物質を含む層
956 第2の電極
1000 支持体
1001 第1の電極
1002 第2の電極
1003 EL層
1004 電荷発生層
1011 正孔注入層
1012 正孔輸送層
1013 発光層
1014 電子輸送層
1015 電子注入層
1100 発光素子
1100a 第1の領域
1100b 第2の領域
1101 第1の電極
1102 第2の電極
1103a 第1のEL層
1103b 第2のEL層
1104 電荷発生層
1200 発光素子
1200a 領域
1200c 領域
1201 第1の電極
1202 第2の電極
1203a 第1のEL層
1203b 第2のEL層
1204 電荷発生層
1206 導電性の異物
1300 発光素子
1301 第1の電極
1302 第2の電極
1303a 発光性の有機化合物を含むEL層
1400 発光素子
1400a 第1の領域
1400b 第2の領域
1401 第1の電極
1402 第2の電極
1403a 第1のEL層
1403b 第2のEL層
1404 電荷発生層
1500a 発光素子
1500b 発光素子
1501 第1の電極
1502 第2の電極
1503B EL層
1503G EL層
1503R EL層
1504 電荷発生層
1509 封止膜
2001 筐体
2002 光源
3001 照明装置
3002 テレビ装置
9101 筐体
9102 支持台
9103 表示部
9104 スピーカー部
9105 ビデオ入力端子
9201 本体
9202 筐体
9203 表示部
9204 キーボード
9205 外部接続ポート
9206 ポインティングデバイス
9301 筐体
9302 表示部
9303 スイッチ
9304 接続部
9305 スピーカー
9306 マイク
9501 本体
9502 表示部
9503 筐体
9504 外部接続ポート
9505 リモコン受信部
9506 受像部
9507 バッテリー
9508 音声入力部
9509 操作キー
9510 接眼部
9601 筐体
9602 液晶層
9603 バックライト
9604 筐体
9605 ドライバーIC
9606 端子
Claims (6)
- 一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子に、
前記発光素子の光取り出し面において実質的に全面が1(cd/m2)以上に発光する発光開始電圧未満の電圧を前記発光素子の順方向に印加し、
前記発光素子の光取り出し面において1(cd/m2)以上の発光を呈する異常発光部位を検出する発光素子の検査方法。 - 電荷発生層によって仕切られた発光色が異なる複数のEL層を一対の電極間に設けた発光素子に、
前記発光素子の光取り出し面において実質的に全面が1(cd/m2)以上に発光する電圧を前記発光素子の順方向に印加し、
前記発光素子の光取り出し面において色度が異なる異常発光部位を検出する発光素子の検査方法。 - 発光素子の光取り出し面において実質的に全面が1(cd/m2)以上に発光する発光開始電圧未満の電圧を前記発光素子の順方向に印加し、
前記発光素子の光取り出し面において1(cd/m2)以上の発光を呈する異常発光部位にレーザ光を照射し絶縁化する、
一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子の作製方法。 - 前記発光素子の光取り出し面において実質的に全面が1(cd/m2)以上に発光する電圧を前記発光素子の順方向に印加し、
前記発光素子の光取り出し面において色度が異なる異常発光部位にレーザ光を照射し絶縁化する、
一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子の作製方法。 - 請求項1または請求項2記載の
前記異常発光部位の検出工程と、
前記異常発光部位にレーザ光を照射する工程を有し、
前記異常発光部位の検出工程の観察画像の解像度に比べ、レーザ光を照射する工程の観察画像の解像度が高いことを特徴とする、
一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子の作製方法。 - 請求項1または請求項2記載の
前記異常発光部位の検出工程と、
前記異常発光部位にレーザ光を照射する工程を有し、
前記異常発光部位の検出工程の観察画像の解像度の100倍以上、10,000倍以下の高解像度で、
レーザ光を照射する工程の観察画像の解像度が高いことを特徴とする
一対の電極間に電荷発生層によって仕切られた複数のEL層を設けた発光素子の作製方法。
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JP5610895B2 (ja) | 2014-10-22 |
KR20170034931A (ko) | 2017-03-29 |
TWI539864B (zh) | 2016-06-21 |
US20110027918A1 (en) | 2011-02-03 |
WO2011013493A1 (en) | 2011-02-03 |
KR101839292B1 (ko) | 2018-03-19 |
KR101720077B1 (ko) | 2017-03-27 |
US8415174B2 (en) | 2013-04-09 |
KR20120051633A (ko) | 2012-05-22 |
TW201125428A (en) | 2011-07-16 |
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