JP2016509685A - 散乱ナノ粒子を用いた透明ディスプレイのための方法および装置 - Google Patents
散乱ナノ粒子を用いた透明ディスプレイのための方法および装置 Download PDFInfo
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Abstract
Description
本出願は、2013年1月2日に出願された「Methods and Apparatus for Transparent Display Using Scattering Particles」と題する米国特許出願第61/748,228号(代理人整理番号MIT15813P01)の利益を、米国特許法第119条(e)下に主張するものであり、この米国特許出願は参照によりその全体が本明細書に組み込まれる。
本発明は、国立科学財団によって授与された助成金番号DMR0819762、陸軍研究室によって授与された契約番号W911NF−07−D−0004、ならびにエネルギー省により授与された助成金番号DE−SC0001299およびDE−FG02−09ER46577の下で政府の支援により行われた。米国政府は、本発明において一定の権利を有する。
透明ディスプレイは、科学者およびエンジニアによって長い間追及されてきた。二次元(2D)透明ディスプレイは、画像が可視画面に表示される従来のディスプレイとは対照的に、空気中に浮遊表示される画像を生成することができる。特別な視覚的印象を生成することのほか、このようなディスプレイは、多種多様な用途を有し得る。ガラス窓をホームシアターの画面に変えることができる。眼鏡は、ミニコンピュータの画面になり得る。車両のフロントガラスに、運転者の視界を遮断することなく、地図等の情報を表示することができる。店舗のディスプレイウィンドウに、製品のみならずそれらの情報も表示することができる。
例証
Claims (21)
- 透明ディスプレイであって、
透明基板と、
前記透明基板と光通信しており、少なくとも1つの単色ビームで前記透明基板を照射する、少なくとも1つの光源と、
前記透明基板上に配置され、前記少なくとも1つの単色ビームを散乱させる、少なくとも1つのナノ粒子と、を備える、透明ディスプレイ。 - 前記透明基板が、約390nm〜約760nmの波長で約90%〜約100%の透過率を有する、請求項1に記載の透明ディスプレイ。
- 前記透明基板が、ガラス、プラスチック、ポリマー、およびアクリルのうちの少なくとも1つを含む、請求項1に記載の透明ディスプレイ。
- 前記少なくとも1つの光源が、
約390nm〜約490nmの第1の中心波長を有する第1の単色ビームを出射する第1の光源と、
約490nm〜約580nmの第2の中心波長を有する第2の単色ビームを出射する第2の光源と、
約580nm〜約760nmの第3の中心波長を有する第3の単色ビームを出射する第3の光源と、を含む、請求項1に記載の透明ディスプレイ。 - 前記少なくとも1つのナノ粒子が、前記第1の中心波長、前記第2の中心波長、および前記第3の中心波長のうちの1つに及ぶ約1nm〜約70nmの半値全幅を有するピークを伴う散乱断面を有する、請求項4に記載の透明ディスプレイ。
- 前記少なくとも1つのナノ粒子が、
前記第1の中心波長に重なり合う約1nm〜約70nmの第1の半値全幅(FWHM)を有する第1のピークと、
前記第2の中心波長に重なり合う約1nm〜約70nmの第2の半値全幅(FWHM)を有する第2のピークと、
前記第3の中心波長に重なり合う約1nm〜約70nmの第3の半値全幅(FWHM)を有する第3のピークと、を伴う散乱断面を有する、請求項4に記載の透明ディスプレイ。 - 前記少なくとも1つのナノ粒子が、
前記第1の中心波長と重なり合う第1のピークを有する第1の散乱断面を有する第1のナノ粒子と、
前記第2の中心波長と重なり合う第2のピークを有する第2の散乱断面を有する第2のナノ粒子と、
前記第3の中心波長と重なり合う第3のピークを有する第3の散乱断面を有する第3のナノ粒子と、を含む、請求項4に記載の透明ディスプレイ。 - 前記少なくとも1つのナノ粒子が、
約17.7nmの直径を有する第1のシリカ球と、前記第1のシリカ球上に堆積され、約10.4nmの厚さを有する第1の銀層とを有する、第1のナノ粒子と、
約25nmの直径を有する第2のシリカ球と、前記第2のシリカ球上に堆積され、約6.9nmの厚さを有する第2の銀層とを有する、第2のナノ粒子と、
約25.1nmの直径を有する銀球を含む第3のナノ粒子と、を含む、請求項1に記載の透明ディスプレイ。 - 前記少なくとも1つのナノ粒子が、前記少なくとも1つの単色ビームの波長で入射光の約90%〜約100%を散乱させる、請求項1に記載の透明ディスプレイ。
- 前記少なくとも1つのナノ粒子が、前記透明基板上に所定のパターンで堆積された複数のナノ粒子を含む、請求項1に記載の透明ディスプレイ。
- 前記少なくとも1つのナノ粒子のうちの異なるナノ粒子を照射するために、前記透明基板の異なる領域に前記少なくとも1つの単色ビームを方向付ける、ビームステアリング素子をさらに含む、請求項1に記載の透明ディスプレイ。
- 透明基板上に配置された少なくとも1つのナノ粒子を備える透明なディスプレイを動作させる方法であって、
観察者の方向に少なくとも1つの単色ビームの少なくとも一部を散乱させるために、前記少なくとも1つのナノ粒子を前記少なくとも1つの単色ビームで照射することを含む、方法。 - 前記少なくとも1つのナノ粒子が、前記透明基板の第1の部分上に配置された第1のナノ粒子と、前記透明基板の第2の部分上に配置された第2のナノ粒子とを含み、
前記少なくとも1つの単色ビームを生成することと、
前記少なくとも1つの単色ビームを、前記第1のナノ粒子を照射するように方向付けることと、
前記少なくとも1つの単色ビームを、前記第2のナノ粒子を照射するように方向付けることと、をさらに含む、請求項12に記載の方法。 - 前記少なくとも1つのナノ粒子を前記少なくとも1つの単色ビームで照射することが、
前記少なくとも1つのナノ粒子を、約390nm〜約490nmの第1の中心波長を有する第1の単色ビームで照射することと、
前記少なくとも1つのナノ粒子を、約490nm〜約580nmの第2の中心波長を有する第2の単色ビームで照射することと、
前記少なくとも1つのナノ粒子を、約580nm〜約760nmの第3の中心波長を有する第3の単色ビームで照射することと、を含む、請求項12に記載の方法。 - 透明ディスプレイを作製する方法であって、
(A)約1nm〜約70nmの半値全幅を持つ散乱断面および約390nm〜約760nmの中心波長を有する少なくとも1つのナノ粒子を提供することと、
(B)約390nm〜約760nmで約90%〜約100%の透過率を有する基板を提供することと、
(C)前記基板上に前記少なくとも1つのナノ粒子を堆積することと、を含む、方法。 - (A)が、
約390nm〜約490nmの第1の中心波長および約1nm〜約70nmの第1の半値全幅(FWHM)によって特徴付けられる第1のピークを伴う第1の散乱断面を有する少なくとも1つの第1のナノ粒子、
約490nm〜約580nmの第2の中心波長および約1nm〜約70nmの第2のFWHMによって特徴付けられる第2のピークを伴う第2の散乱断面を有する少なくとも1つの第2のナノ粒子、ならびに
約580nm〜約760nmの第3の中心波長および約1nm〜約70nmの第3のFWHMによって特徴付けられる第3のピークを伴う第3の散乱断面を有する少なくとも1つの第3のナノ粒子のうちの少なくとも1つを選択することを含む、請求項15に記載の方法。 - 前記散乱断面が、
約390nm〜約490nmの第1の中心波長および約1nm〜約70nmの第1の半値全幅によって特徴付けられる第1のピークと、
約490nm〜約580nmの第2の中心波長および約1nm〜約70nmの第2の半値全幅によって特徴付けられる第2のピークと、
約580nm〜約760nmの第3の中心波長および約1nm〜約70nmの第3の半値全幅によって特徴付けられる第3のピークと、を含む、請求項15に記載の方法。 - (C)が、
(i)液体中に前記少なくとも1つのナノ粒子を溶解させて、ナノ粒子溶液を形成することと、
(ii)前記基板の表面上に前記ナノ粒子溶液を被覆することと、かつ
(iii)前記少なくとも1つのナノ粒子を前記基板に固定するために、前記ナノ粒子溶液が前記基板の前記表面上で乾燥させることと、を含む、請求項15に記載の方法。 - (ii)が、
前記ナノ粒子溶液を前記基板の前記表面上にスピン被覆すること、
前記ナノ粒子溶液を前記基板の前記表面上に塗装すること、
前記ナノ粒子溶液を前記基板の前記表面上に印刷すること、および
前記ナノ粒子溶液を前記基板の前記表面上に噴霧すること、のうちの少なくとも1つを含む、請求項18に記載の方法。 - (C)が、
(i)前記基板を溶融して、液体基板を形成することと、
(ii)前記少なくとも1つのナノ粒子を前記液体基板中に溶解させることと、
(iii)前記少なくとも1つのナノ粒子を前記基板にまたは前記基板内に少なくとも部分的に固定するために、前記液体基板が硬化することを可能にすることと、を含む、請求項15に記載の方法。 - (C)が、所定のパターンで前記基板上に複数のナノ粒子を堆積させることを含む、請求項15に記載の方法。
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- 2013-12-30 CN CN201380074125.2A patent/CN105027184B/zh active Active
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- 2013-12-30 JP JP2015551739A patent/JP6346196B2/ja active Active
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Also Published As
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US20170184849A1 (en) | 2017-06-29 |
KR20150110564A (ko) | 2015-10-02 |
WO2014107426A1 (en) | 2014-07-10 |
JP6346196B2 (ja) | 2018-06-20 |
US20140185282A1 (en) | 2014-07-03 |
CN105027184B (zh) | 2017-04-19 |
US9335027B2 (en) | 2016-05-10 |
US9458989B2 (en) | 2016-10-04 |
US20140185284A1 (en) | 2014-07-03 |
CA2896981A1 (en) | 2014-07-10 |
US20190339522A1 (en) | 2019-11-07 |
CA2896981C (en) | 2021-02-16 |
US9677741B2 (en) | 2017-06-13 |
KR102198985B1 (ko) | 2021-01-07 |
CN105027184A (zh) | 2015-11-04 |
US9927616B2 (en) | 2018-03-27 |
US20160216600A1 (en) | 2016-07-28 |
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