成果報告書詳細
管理番号20120000000255
タイトル*平成23年度中間年報 「省エネルギー革新技術開発事業/先導研究/省エネルギー・フィルム型超大画面プラズマチューブアレイの超高精細化技術の研究開発」
公開日2012/5/10
報告書年度2011 - 2011
委託先名篠田プラズマ株式会社
プロジェクト番号P09015
部署名省エネルギー部
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) 研究の目標
薄型ディスプレイ(FPA)において「デジタルサイネージ」と呼ばれる新市場が立ち上がり、100 型を超える超大画面が求められる。これに対し、新しくプラズマチューブアレイ(PTA)を開発した。PDP やLCD など既存のFPD では大画面化において電力/重量増大が問題となるが、PTAでは従来の1/2 程度の消費電力で150~200 型クラスの超軽量・薄型大画面ディスプレイ製品を実現した。この省エネ性能を家庭向けに生かすため、現状1ミリメートル径のプラズマチューブを1/2 に精細化する。また将来的にはPTA のフィルム型の特長を生かした巻取り型のフレキシブルディスプレイを実現し、2015 年以降に普及が想定されるSuper High Vision にも対応可能なRoll TV 実現を目指す。これらを達成するための基礎技術として、高効率な0.5ミリメートル径プラズマチューブのデバイス開発と基本プロセス開発を行う。
英文要約Title: Leading Research Projects for Innovative Technology Development for Energy Saving. Research of Ultra-fine Pitch Technology for Energy Saving Film-type Extra-large screen Plasma Tube Array. (FY2010-FY2012) FY2011 Annual Report.
An extra-large screen flat panel display (FPD) market beyond 100 inches diagonal begins to grow up, and new market of a digital-signage is expected. However, screen expansion using conventional display technologies is very hard to solve the problem of increasing power consumption and weight with screen size expansion.
We had been developing a plasma tube array (called PTA) by arraying emissive tube elements, which had 1 mm of diameter with thin film electrode sheet. Energy saving of half is possible in the extra-large screen displays with PTA. To make use of this PTA technology for the Super High Definition TV at consumer market in the future, an ultra-fine pitch of 0.5 mm plasma tube is necessary. In this study, we were aimed for establishing a basic technique of 0.5 mm plasma tube devices with high luminous efficacy and flexible roll screen, and basic process of 0.5 mm fine glass tube, protective layer, and phosphor layer.
We had been able to produce new structure 0.5mm tube array experimentally by having succeeded in a discharge protective layer and new process development of the phosphor layer for 0.5mm tube. Then we made experimental small devices of 0.5 mm tube array with new glass tube structure and phosphor structure, and we measured a luminous efficacy of 4.1 lm/W at the 0.5mm devices. For the flexible screen, a basic technology to reduce a heat expansion of the electrode film in the lamination process was developed and the -/+0.1 % of high precision of the electrode film was achieved.
In fabrication process development, the fine glass tube with 0.5mm of diameter was developed by increasing a precision of mother glass formation process and by reducing the thermal drift in the re-draw process. By making fine-tuning with these processes in the 0.5 mm glass tube formation, -/+5 μm of the diameter precision was accomplished. For the development of the new protective layer, new formation materials had been developed and MgO layer of 100 μm thickness was achieved. We are investigating and improving the quality of the MgO thin film In the new phosphor layer process development, by developing a new original formation technique of the layer with new fluid material including phosphor particle instead of using conventional process, we succeeded to make the phosphor layer with thickness of -/+20 % precision for the 0.5 mm tube. We will try to reduce the fluctuation of the layer thickness.
All the research targets of this fiscal year were accomplished as above.
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