JP4922935B2 - 光学フィルム、構成要素または導波管の製作に使用するために基板にキャビティを切削または形成する方法 - Google Patents
光学フィルム、構成要素または導波管の製作に使用するために基板にキャビティを切削または形成する方法 Download PDFInfo
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Description
本発明は、対応する光学素子パターンをフィルム、構成要素、もしくは導波管などを含む光学基板に形成するために、光学素子形状のキャビティの1つ以上のパターンを基板に切削または形成する方法に関する。
一般に、光学基板を通過する光を導くために、フィルム、構成要素、または導波管を含む光学基板の1つ以上の表面に複数の光学素子を与えることが知られている。少なくともいくつかの光学素子は、リッジを形成するよう合わせられる、光学基板の長さおよび幅に相対して相当に小さい少なくとも2つの表面を有してもよい。
リッジを形成するために合わせられる、光学基板の長さおよび幅に相対して相当に小さい少なくとも2つの表面を有する光学基板であって光学素子の1つ以上のパターンを含む光学基板を製作することの困難さおよび高い費用は、切削または形成プロセス中に工具または基板を回転させずにこのような光学素子形状のパターンのキャビティを基板に切削または形成する工具を用い、その後その基板を用いて、基板のキャビティに対応する光学素子を有する光学基板を光学基板の少なくとも1つの表面に形成することにより、実質的に緩和される。
2つの表面のみを有し、その一方が平坦、他方が湾曲していてもよい。代替的には、両面が湾曲していてもよい。
図1および図2は本発明による光リダイレクトフィルムシステム1の1つの形態を概略的に示し、バックライトBLまたは他の光源から放射された光のより多くをフィルムの表面のより法線方向に向かって再分配する光リダイレクトフィルム2を含む。フィルム2は、たとえばラップトップコンピュータ、ワードプロセッサ、アビオニクス表示、携帯電話、PDAなどに用いられる液晶表示部などの表示部Dなど、照明用のほとんどあらゆる光源からの光を所望の視覚内で再分配するために用いられることができ、表示部をより明るくする。液晶表示部は、図1および図2に概略的に示されるような送信型液晶表示部、図3に概略的に示されるような反射型液晶表示部、図4に概略的に示されるような半透過型液晶表示部を含む任意の種類であり得る。
よび高さまたは深さの個別の光学素子5のさまざまなパターンを示す。
ルムプロセスなどによって適用されてもよい。変形体はまた、バックライトに変形体を適用するために用いられるシートまたはフィルム上にプリントされてもよい。このシートまたはフィルムは、所望の効果を生じるために、シートまたはフィルムをたとえばバックライトの一方側または両側に対して取付けるか別の方法で位置決めすることにより、バックライトの恒久的な一部とすることができる。
みもしくは突起のある表面を含む他の光学的変形体が、成形、エッチング、スタンピング、熱成形、ホットスタンプなどによってバックライトの1つ以上の表面領域に加工される。プリズム形もしくはレンズ形の表面、凹みもしくは突起のある表面は、そこに接触した光線の一部がバックライトから放射されるようにする。さらに、プリズム、凹み、もしくは他の表面の角度は光を異なる方向に向けるよう変えることができ、所望の光出力分布もしくは効果を生成する。さらに、反射面または屈折面は、モアレまたは他の干渉効果を減じるために、特定の角度のない形状またはパターンを有していてもよい。
れて図45および図46に示され、各クラスタの変形体のうち少なくともいくつかは異なるサイズまたは形状特性を有し、それがパネル表面にわたって異なるクラスタの各々について平均サイズまたは形状特性を集団的に生成する。たとえば、クラスタの各々の変形体のうちの少なくともいくつかは異なる深さもしくは高さまたは異なる傾斜もしくは配向を有し、それがパネル表面にわたって異なる傾斜表面の平均深さもしくは高さ特性または平均勾配もしくは配向を集団的に生成する。同様に、クラスタの各々の変形体のうちの少なくともいくつかは異なる幅または長さを有し、それがパネル表面にわたって異なる平均幅または長さ特性を集団的に生成する。これにより、機械加工の許容誤差を超える所望のサイズまたは形状特性を得ることを可能にし、モアレおよび干渉効果にも打ち勝つ。
するためのキャビティは連続的に切削または形成されることができ、その結果、基板または工具は少なくともいくつかのキャビティ切削または形成の間に位置決めされるだけでよい。
)していてもよく、図64に示されるように円筒状でもよい。図63はさらにアーチ型に動く湾曲した基板103を示すが、図64は、切削運動中に工具交差経路で動く工具100を示す。さらに、図64では、工具および円筒状の基板の両方が各切削または形成プロセスに先立って基板における各キャビティの特定の配置を生成するよう位置決めされてもよく、工具は、少なくともいくつかのキャビティの切削または形成に先立って少なくともいくつかのキャビティについて異なる配向を生成するよう回転されてもよい。しかしながら、工具もしくは基板またはその両方は、切削もしくは形成プロセスに先立って、またはその間に動き得ることが理解される。さらに、キャビティは、円筒状の基板の表面に、または円筒から取除かれ得るスリーブもしくはスリーブの部分に、直接切削または形成され得る。
Claims (13)
- 少なくとも1つの表面に複数の光学素子を有する光学フィルム、構成要素、または導波管を製作するための方法であって、少なくともいくつかの光学素子は、リッジを形成するよう合わせられる、光学フィルム、構成要素、または導波管の長さおよび幅に相対して相当に小さい少なくとも2つの表面を有し、方法は、複数の光学素子形状のキャビティを基板の表面に切削または形成するために工具を用いるステップを含み、切削または形成プロセス中、工具も基板も工具軸に対して回転されず、キャビティの少なくともいくつかは、リッジを形成するために合わせられる、基板の長さおよび幅に相対して相当に小さい少なくとも2つの表面を有するよう切削または形成され、さらに、基板のキャビティに対応する複数の光学素子を少なくとも1つの表面に有する光学フィルム、構成要素、または導波管を形成するためにその基板を用いるステップを含み、工具は、工具軸に関して非対称な切削または形成チップを有し、切削または形成チップは、工具交差経路に平行な少なくとも1つの切削エッジを有する、方法。
- 基板または工具は、各切削または形成プロセスに先だって各キャビティについて特定の位置を生成するよう位置決めされる、請求項1に記載の方法。
- 基板または工具は、少なくともいくつかのキャビティを切削または形成する前に、少なくともいくつかのキャビティについて異なる配向を生成するために回転される、請求項2に記載の方法。
- 他のキャビティは同じ配向を有し、基板または工具がいくつかのキャビティの切削または形成の間に回転されるだけでよいように、連続して切削されまたは形成される、請求項3に記載の方法。
- キャビティの少なくともいくつかは非対称である、請求項1に記載の方法。
- 少なくともいくつかのキャビティは1つの平坦な表面および1つの湾曲した表面を有する、請求項5に記載の方法。
- 少なくともいくつかのキャビティは2つの表面のみを有し、表面の一方が平坦、表面の他方が湾曲している、請求項1に記載の方法。
- 少なくともいくつかのキャビティは2つの湾曲した表面を有する、請求項1に記載の方法。
- 少なくともいくつかのキャビティは他のキャビティと重複し、交差し、または連結する、請求項1に記載の方法。
- 光学フィルム、構成要素、または導波管の少なくとも1つの表面に形成される光学素子は、1つの表面の少なくとも90%を実質的に覆う、請求項1に記載の方法。
- フィルムは、光入口表面および対向する光出口表面を有し、光入口表面に少なくともいくつかの前記光学素子が位置し、60°から80°のリッジ角を有する、請求項1に記載の方法。
- フィルムは、光入口表面および対向する光出口表面を有し、光出口表面に少なくともいくつかの光学素子が形成され、85°から95°のリッジ角を有する、請求項1に記載の方法。
- キャビティが切削され、または形成される基板の表面は、切削または形成プロセス中の工具の経路に垂直でない、請求項1に記載の方法。
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| US10/915,632 | 2004-08-10 | ||
| PCT/US2005/022886 WO2006023077A2 (en) | 2004-08-10 | 2005-06-28 | Methods of cutting or forming cavities in a substrate for use in making optical films, components or wave guides |
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| JP2008510180A5 JP2008510180A5 (ja) | 2008-08-07 |
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| CN (1) | CN101039796B (ja) |
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| TWI289708B (en) * | 2002-12-25 | 2007-11-11 | Qualcomm Mems Technologies Inc | Optical interference type color display |
| US7417782B2 (en) * | 2005-02-23 | 2008-08-26 | Pixtronix, Incorporated | Methods and apparatus for spatial light modulation |
| US20050130759A1 (en) * | 2003-12-12 | 2005-06-16 | Hayden Mark X. | Sports shaft with variable contour |
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| US7706050B2 (en) * | 2004-03-05 | 2010-04-27 | Qualcomm Mems Technologies, Inc. | Integrated modulator illumination |
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| US7813026B2 (en) * | 2004-09-27 | 2010-10-12 | Qualcomm Mems Technologies, Inc. | System and method of reducing color shift in a display |
| US7750886B2 (en) * | 2004-09-27 | 2010-07-06 | Qualcomm Mems Technologies, Inc. | Methods and devices for lighting displays |
| US7416309B2 (en) * | 2004-12-30 | 2008-08-26 | 3M Innovative Properties Company | Optical film having a surface with rounded structures |
| US7616368B2 (en) * | 2005-02-23 | 2009-11-10 | Pixtronix, Inc. | Light concentrating reflective display methods and apparatus |
| US7304785B2 (en) | 2005-02-23 | 2007-12-04 | Pixtronix, Inc. | Display methods and apparatus |
| US7742016B2 (en) * | 2005-02-23 | 2010-06-22 | Pixtronix, Incorporated | Display methods and apparatus |
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| US7304786B2 (en) * | 2005-02-23 | 2007-12-04 | Pixtronix, Inc. | Methods and apparatus for bi-stable actuation of displays |
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| JPH04146019A (ja) * | 1990-10-05 | 1992-05-20 | Nippon Fureneru Kk | 金型の溝形成方法 |
| US5330799A (en) * | 1992-09-15 | 1994-07-19 | The Phscologram Venture, Inc. | Press polymerization of lenticular images |
| US5613751A (en) * | 1995-06-27 | 1997-03-25 | Lumitex, Inc. | Light emitting panel assemblies |
| US20040135273A1 (en) * | 1995-06-27 | 2004-07-15 | Parker Jeffery R. | Methods of making a pattern of optical element shapes on a roll for use in making optical elements on or in substrates |
| US6712481B2 (en) * | 1995-06-27 | 2004-03-30 | Solid State Opto Limited | Light emitting panel assemblies |
| JP4146019B2 (ja) | 1999-01-11 | 2008-09-03 | 日本テトラパック株式会社 | 包装装置の成形型 |
| US6752505B2 (en) * | 1999-02-23 | 2004-06-22 | Solid State Opto Limited | Light redirecting films and film systems |
| US7046905B1 (en) * | 1999-10-08 | 2006-05-16 | 3M Innovative Properties Company | Blacklight with structured surfaces |
| US6356391B1 (en) * | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
| CA2413700C (en) * | 2000-07-11 | 2007-01-09 | 3M Innovative Properties Company | Backlight with structured sufaces |
| JP2003231014A (ja) * | 2002-02-12 | 2003-08-19 | Nagase Integrex Co Ltd | 工作機械 |
| US6952627B2 (en) * | 2002-12-18 | 2005-10-04 | General Electric Company | Method and apparatus for fabricating light management substrates |
| TW566564U (en) * | 2003-01-29 | 2003-12-11 | Hon Hai Prec Ind Co Ltd | Back light module and liquid crystal display using the same |
-
2004
- 2004-08-10 US US10/915,632 patent/US20050024849A1/en not_active Abandoned
-
2005
- 2005-06-28 KR KR1020077005593A patent/KR101185616B1/ko not_active Expired - Fee Related
- 2005-06-28 WO PCT/US2005/022886 patent/WO2006023077A2/en not_active Ceased
- 2005-06-28 CN CN2005800343570A patent/CN101039796B/zh not_active Expired - Fee Related
- 2005-06-28 EP EP05763855A patent/EP1779162A4/en not_active Withdrawn
- 2005-06-28 JP JP2007525614A patent/JP4922935B2/ja not_active Expired - Fee Related
- 2005-07-01 TW TW094122366A patent/TWI378278B/zh not_active IP Right Cessation
-
2009
- 2009-06-19 US US12/487,726 patent/US8029708B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1779162A4 (en) | 2008-09-10 |
| KR101185616B1 (ko) | 2012-09-24 |
| WO2006023077A3 (en) | 2006-11-23 |
| TW200606479A (en) | 2006-02-16 |
| CN101039796B (zh) | 2010-10-13 |
| TWI378278B (en) | 2012-12-01 |
| CN101039796A (zh) | 2007-09-19 |
| US20090250829A1 (en) | 2009-10-08 |
| KR20070058492A (ko) | 2007-06-08 |
| US8029708B2 (en) | 2011-10-04 |
| JP2008510180A (ja) | 2008-04-03 |
| WO2006023077A2 (en) | 2006-03-02 |
| US20050024849A1 (en) | 2005-02-03 |
| EP1779162A2 (en) | 2007-05-02 |
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