JP2009506502A - 照明アセンブリおよびシステム - Google Patents
照明アセンブリおよびシステム Download PDFInfo
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- JP2009506502A JP2009506502A JP2008528188A JP2008528188A JP2009506502A JP 2009506502 A JP2009506502 A JP 2009506502A JP 2008528188 A JP2008528188 A JP 2008528188A JP 2008528188 A JP2008528188 A JP 2008528188A JP 2009506502 A JP2009506502 A JP 2009506502A
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- light
- light extraction
- light source
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
本出願は、以下の米国特許仮出願の有益性を主張し、それら開示の全体を参照として引用する:米国特許出願第60/711,519号、2005年8月27日出願;同第60/711,551号、2008月27日出願;同第60/714,072号、2005年9月2日出願;同第60/714,068号、2005年9月2日出願;同第60/729,370号、2005年10月21日出願、である。
以下の共有であり同時係属中の米国特許出願を本明細書に参照として引用する:米国特許出願シリアル番号11/212,166、題名、凹面トランス反射体を具備する光循環キャビティを有する直接照明バックライト;同11/458,891、題名、2機能性方向転換器を具備する光源を有する直接照明バックライト;同11/466,628、題名、凹面トランス反射体を具備する光循環キャビティを有するエッジ照明バックライト;同xx/xxx、xxx、題名、凹面トランス反射体を具備する光循環キャビティを有する直接照明バックライトを形成する方法(代理人ドケット番号61199US006)、である。
比較のバックライトキャビティを光抽出素子またはフィルムをLEDの上方に有しない構成にした。背面反射体のトップ(すなわち、反射基板)から拡散板の底までのキャビティ深さを28mmにした。
バックライトキャビティは、光抽出素子として使用される3M社から入手可能なBEFフィルムIIIを含んでいた。そのフィルムをアクリル板上にプリズムがLEDに対向するようにして支持させ、(すなわち、LED列の方向に対して平行に)水平に配向させた。キャビティ深さは反射基板のトップから拡散板の底までが約28mm、そして部分反射体を反射基板の上約12.7mmに配置した。反射基板は米国特許第6,096,247号(Ulsh等)に記載の技術を使用して作製されたフレームエンボスESRであった。
バックライトキャビティは、光抽出素子として使用されるキューブコーナー光抽出フィルムを含んでいた。このフィルムは0.25mm(10ミル)厚さの単層ポリカーボネートシート材料であり、それは1つの主要面が平坦で平滑であり、反対表面に形成されたプリズムパターンを有した。プリズムは、3M社から入手可能な3M(登録商標)スコッチライト(Scotchlite、登録商標)反射材6260高光沢フィルムに使用されるピラミッド状キューブコーナー配列と同一であり、ピラミッド状配列は片傾斜キューブコーナープリズムで特徴付けられ、その高さ(三角形の底面からキューブコーナーの頂点まで)は約87.5μm(約3.5ミル)であり、その底面三角形は約55°、55°、および70°の角度を有する。この抽出フィルムは、フィルムの構造化側がLEDに面するように配向させた。フィルムをアクリル板で支持した。キャビティ深さは、反射基板のトップから拡散板の底までが28mmであり、光抽出フィルムは反射基板の上方約12.7mmに設置した。反射基板はESRであった。
バックライトキャビティは、光抽出素子として利用される2つの光抽出フィルムを含んでいた。各々の光抽出フィルムは、実施例Bに使用された光抽出フィルムと同一であった。第1フィルムはキューブコーナー要素をLEDに対向するようにしてアクリル板上に支持させた。第2フィルムはキューブコーナー要素を(アクリル板に接触させて)LEDに対向するようにしてアクリル板の反対面に支持させた。キャビティは約18mm深さであり、光抽出フィルムは反射基板の上方約12.7mmに配置した。反射基板はESRであった。
バックライト空隙は、光抽出素子として利用される2つの光抽出フィルムを具備した。各々の光抽出フィルムは実施例Bに使用された光抽出フィルムと同一であった。第1フィルムはキューブコーナー要素をLEDに対向するようにしてアクリル板上に支持させた。アクリル板の反対面は拡散フィルムを具備した。第2フィルムはキューブコーナー要素をLEDに対向する(アクリル板に接触させて)ようにして拡散フィルムを有するアクリル板の面に固定させた。キャビティは約28mm深さであり、光抽出フィルム構築物は反射基板の上方約12.7mmに配置した。反射基板はESRであった。
バックライトキャビティは、それが0.13mm(5ミル)厚さのポリエチレンテレフタレート(PET)製ベースフィルムの上に約1.586の屈折率を有する樹脂で、そこに形成させたプリズム構造化表面722を有する硬化樹脂層からなることを除いては、光抽出素子として本開示の図7b〜eに関して記述した光抽出フィルムを具備した。光抽出フィルムは、約0.15mm(6ミル)の公称の全体の厚さを有した。構造化表面上の各プリズム726は、約150μmの特性的長さλ(図7e参照)、それぞれ約68μmと4μmの最高幅Wmaxおよび最低幅Wmin、並びにそれぞれ約25μmと1μmの最高の高さおよび最低の高さを有した。各プリズムの傾斜したプリズム表面は、実質的に平坦な横断方向断面(図7dのy−z平面参照)であり、その間に約96°の頂角を形成した。プリズムは図7b〜eに図示したように構造的対称性を有し、片勾配角度θは約19°であった。θフィルムはプリズムをLEDに対向させ、プリズムを水平に配向させて(すなわち、角プリズムはLED列の方向に平行に広がる)、アクリル板上に支持させた。キャビティ深さは、反射基板のトップから拡散板の底までで38mmであり、光抽出素子は反射基板の上方約12.7mmに設置した。反射基板はESRであった。
バックライトキャビティは光抽出素子として実施例Eの光抽出フィルムを具備した。プリズムをLEDに対向させ、かつ水平に配向(すなわち、各プリズムがLEDの列の方向に平行に広がる)させて、フィルムをアクリル板上で支持した。キャビティ深さは、反射基板のトップから拡散板の底までが28mmであり、光抽出構築物は反射基板の上方約12.7mmに設置した。反射基板はESRであった。
実施例A〜Fの比較を表1に示す。相対的効率パラメータは各々のバックライト構成に対して、実施例の平均輝度を対照例の平均輝度で除算して計算し、各々の場合の平均輝度はそれぞれのバックライトの実質的な全出力面積に対して計算した。輝度の不均一性パラメータは各々のバックライト構成に対して、標準輝度偏差をバックライトの実質的な全出力面積に渡る平均輝度で除算して計算した。色不均一性パラメータΔuvは各々のバックライト構成に対して、実施例の平均的な色からの各点における色彩偏差の平均値として計算し、かつ、色彩は色彩空間におけるCIEu'v'として表現する。従って、
Claims (30)
- 照明アセンブリであって、
反射基板と、
方位角光線拡幅トポグラフィを含む第1光抽出面と、
照明光を生成できる1つ以上の光源を具備する光源ユニット、
とを具備し、前記光源ユニットは前記反射基板と前記第1光抽出面との間にあり、前記第1光抽出面は前記光源ユニットに対向している、前記アセンブリ。 - 前記第1光抽出面は極角光線拡幅トポグラフィを更に含む、請求項1に記載のアセンブリ。
- 前記第1光抽出面は該第1光抽出面のx−y平面を占める細長い連続プリズムの配列を具備し、前記配列中の各々のプリズムは稜線を形成するために交差する二つの傾斜表面を具備し、前記稜線は実質的に連続し、かつ非直線である、請求項1に記載のアセンブリ。
- 前記稜線は前記x−y平面において波のようにうねっている、請求項3に記載のアセンブリ。
- 前記プリズムの前記傾斜表面は前記x−y平面に垂直な平面内で湾曲している、請求項3に記載のアセンブリ。
- 前記プリズムの前記傾斜表面は前記x−y平面に垂直なy−z平面内で湾曲している、請求項3に記載のアセンブリ。
- 照明アセンブリであって、
反射基板と、
密接に充填された円錐形表面の配列を具備する第1光抽出面であって、前記配列は円錐構造部との間に実質的に平坦でないランド領域を含み、前記円錐構造部の底面が前記表面のx−y平面内にあり、そして、前記円錐構造部の頂点は前記表面のx−y平面から外にある第1光抽出面と、
照明光を生成できる1つ以上の光源を具備する光源ユニットであって、前記光源ユニットは前記第1光抽出面と前記反射基板との間にあり、前記第1光抽出面の配列における前記円錐構造部の頂点が前記光源ユニットの方向を向いている光源ユニットと、
を具備する照明アセンブリ。 - 前記配列における前記円錐形構造部の底面が互いに隣接している、請求項7に記載のアセンブリ。
- 前記円錐形構造部は、前記x−y平面に平行な面内で円形および楕円形から選択される断面形状を有する、請求項8に記載のアセンブリ。
- 前記円錐形構造部の前記底面は円形、楕円形および六角形から選択される、請求項7に記載のアセンブリ。
- 前記円錐形構造部の前記頂点はx−y平面に垂直な平面の外にある、請求項7に記載のアセンブリ。
- 照明アセンブリであって、
反射基板と、
少なくとも1つのファセット表面を含む第1光抽出面であって、該ファセット表面は前記x−y平面内において面内曲面を有する第1光抽出面と、
照明光を生成可能な1つ以上の光源を有する光源ユニットであって、前記光源ユニットは前記第1光抽出面と前記反射基板との間にあり、前記第1光抽出面は前記光源ユニットと対向している光源ユニットと、
を具備する照明アセンブリ。 - 前記少なくとも1つのファセット表面は前記光抽出面上の個々の光偏向要素の上にある、請求項12に記載のアセンブリ。
- 前記光抽出面は複数のファセット表面を有し、前記ファセット表面は前記光抽出面上で複数の光偏向要素の間に分布している、請求項12に記載のアセンブリ。
- 前記曲面は前記光抽出面上に法線入射する光線に対して少なくとも15°の方位角度差Δβを生成するに十分である、請求項12に記載のアセンブリ。
- 照明アセンブリであって、
反射基板と、
前記光抽出面上に法線入射する光線に対して少なくとも15°の方位角度差Δβを生成するための手段を有する第1光抽出面と、
照明光を生成可能な1つ以上の光源を有する光源ユニットであって、該光源ユニットは前記第1光抽出面と前記反射基板との間にあり、前記第1光抽出面は前記光源ユニットと対向している光源ユニットと、
を具備する照明アセンブリ。 - 方位角の差を生成する手段は、前記光抽出面のx−y平面内に種々の角度で配置された複数の非湾曲ファセットを具備する、請求項16に記載のアセンブリ。
- 方位角の差を生成する手段は、前記x−y平面内で湾曲している少なくとも1つのファセットを有する少なくとも1つの光偏向要素を具備する、請求項16に記載のアセンブリ。
- 前記ファセットは多重光偏向要素上にある、請求項18に記載のアセンブリ。
- 直接照明ディスプレイシステムであって、
照明側を有するディスプレイパネルと、
前記ディスプレイパネルの前記照明側に設置された照明アセンブリであって、該照明アセンブリは、反射基板と、照明光を生成可能な1つ以上の光源を有する光源ユニットと、第1光抽出面と前記反射基板との間にある第1光抽出面と、を含み、前記第1光抽出面は前記光源ユニットに対向し、前記第1光抽出面は方位角光線拡幅トポグラフィを有する照明アセンブリと、
を備える直接照明ディスプレイシステム。 - 前記第1光抽出面は該第1光抽出面のx−y平面を占有する細長い連続プリズム配列を具備し、前記配列における各々のプリズムは稜線を形成するために交差する二つ傾斜表面を具備し、前記稜線は、前記x−y平面内で実質的に連続して波打ち、かつ、前記x−y平面に垂直なx−z平面の外にあり、前記プリズムの幅は前記y方向に沿って波打ち、前記プリズムの高さは前記x−y平面に垂直なz方向に沿って波打っている、請求項20に記載のシステム。
- 前記光源ユニットは、前記第1光抽出面上の前記プリズムの稜線に実質的に沿って配向されたLEDの列から構成されるLED配列を具備する、請求項21に記載のシステム。
- 前記LEDは側面発光LEDを具備する、請求項22に記載のシステム。
- 前記プリズムの傾斜表面は、前記x−y平面に垂直な平面内で湾曲している、請求項21に記載のシステム。
- 前記プリズムの傾斜表面は、前記x−y平面に垂直なy−z平面内で湾曲している、請求項21に記載のシステム。
- 前記光源ユニットはLEDの配列を具備する、請求項20に記載のシステム。
- 前記第1光抽出面が拡散層と前記光源ユニットとの間にあるように位置決めされた拡散層を更に具備する、請求項20に記載のシステム。
- 前記拡散層と前記第1光抽出面との間で反射偏光子を更に具備する、請求項27に記載のシステム。
- 反射偏光子を更に具備し、前記第1光抽出面は前記反射偏光子と前記光源ユニットとの間にある、請求項20に記載のシステム。
- 前記光源ユニットは、赤色光を発生できる第1の光源、緑色光を発生できる第2の光源、および青色光を発生できる第3の光源を具備する、請求項20に記載のシステム。
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US60/711,551 | 2005-08-27 | ||
US71407205P | 2005-09-02 | 2005-09-02 | |
US71406805P | 2005-09-02 | 2005-09-02 | |
US60/714,072 | 2005-09-02 | ||
US60/714,068 | 2005-09-02 | ||
US72937005P | 2005-10-21 | 2005-10-21 | |
US60/729,370 | 2005-10-21 | ||
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Also Published As
Publication number | Publication date |
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TWI464494B (zh) | 2014-12-11 |
TW200717132A (en) | 2007-05-01 |
JP5551732B2 (ja) | 2014-07-16 |
JP5290755B2 (ja) | 2013-09-18 |
EP1929361A4 (en) | 2009-10-21 |
EP1929361A1 (en) | 2008-06-11 |
WO2007027521A1 (en) | 2007-03-08 |
US20070047254A1 (en) | 2007-03-01 |
US7695180B2 (en) | 2010-04-13 |
CN101297234A (zh) | 2008-10-29 |
KR20080044308A (ko) | 2008-05-20 |
KR101298786B1 (ko) | 2013-08-22 |
CN101297234B (zh) | 2010-08-11 |
JP2012156146A (ja) | 2012-08-16 |
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