成果報告書詳細
管理番号20120000000783
タイトル*平成23年度中間年報 次世代高効率・高品質照明の基盤技術開発 有機EL照明の高効率・高品質化に係る基盤技術開発(2)
公開日2012/7/5
報告書年度2011 - 2011
委託先名コニカミノルタテクノロジーセンター株式会社
プロジェクト番号P09024
部署名電子・材料・ナノテクノロジー部
和文要約和文要約等以下本編抜粋:
1. 研究開発の内容及び成果等
1 塗布型ロール・ツー・ロール(RtoR)製造プロセスの研究開発
1-1 ロール・ツー・ロール(RtoR)プロセス検証
テストプラントは素子試作を繰り返すことで、各プロセス条件と処方を検討した。とくに塗布工程はオフライン実験(ダイスと初期乾燥の設計見直し)で得られた知見をテストプラントに適用することで、膜厚変動を抑えて塗布故障を低減できる条件を見出し、ムラの少ない良好な発光の見通しを
英文要約Fundamental Technology Development of Next-generation High-efficiency and High-quality Lighting/Development of high efficiency white OLEDs for lighting (FY2011-FY2012) FY2011 Annual Report
Final target of this national project is to realize the organic light emitting diode (OLED) features high efficiency (luminescent efficiency ≧130 lm/W ), high quality (general color rendering index;≧ 80, luminance;≧1,000 cd/m2 and life time of luminance;≧40,000 hours ) with emitting area of ≧100 cm2 . It is named Stage II.
Firstly, we made the detailed plan to realize above target along with clarifying the technological challenge to achieve it. Now we are executing those plan to achieve the target. The target of fiscal year 2011 was determined to be high efficiency (≧60 lm/W), general color rendering index (≧80), luminance (≧1,000 cd/m2) and life time of luminance (≧20,000 hours) with emitting area of ≧25cm2. We carried out detailed analysis both OLED materials and devices to clarify the key factors to obtain longer life time. As a result, both blue & white OLED achieved 3 times longer life time . Not only evaporated devices,but also coated blue OLED achieved 1.5 times longer life time. In combination with those results and 6% optical coupling efficiency improvement, our evaporated OLED achieved 90% in efficiency, 150% in life time vs 2011 target. Coated OLED device achieved 90% in efficiency, 120% in life time vs 2011 target as well.
Our coated transparent conductive film and coated barrier film development were also proceeded. Our coated transparent conductive film achieved 10ohm/sq with 80>T%, our coated barrier film achieved 10E-5 g/m2/d WVTR.
Last year we reported that process engineering issues were mainly six items, which were
(1) high speed precision cleaning technology
(2) high speed multi-layer coating and drying technology
(3) high rate electrode deposition technology
(4) high speed sealing technology
(5) high speed inline inspection technology
(6) high speed web handling technology
This year we have worked on these items and almost achieved the target, which is attaining the productivity of 2/5 of the final goal of this project. In addition, for item #(1), we have clalified the minimum particle size which should be eliminated. For item #(2), we have explored the coating condition around final target. For item #(3), we have obtained stable condition to operate continuously. For item #(5), we have developed simulation model for an interferometrical thin-film thickness measurement system to measure organic layers. This film thickness measuring instrument has been installed in our R2R coating line.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る