JP2013106047A - 発光素子及びこれを備えた照明装置 - Google Patents
発光素子及びこれを備えた照明装置 Download PDFInfo
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- JP2013106047A JP2013106047A JP2012249943A JP2012249943A JP2013106047A JP 2013106047 A JP2013106047 A JP 2013106047A JP 2012249943 A JP2012249943 A JP 2012249943A JP 2012249943 A JP2012249943 A JP 2012249943A JP 2013106047 A JP2013106047 A JP 2013106047A
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- light emitting
- light
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- emitting device
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
- H01L33/52—Encapsulations
Abstract
【解決手段】本発明に従う発光素子は、複数のリードフレーム、上記複数のリードフレームの上面に配置され、上記複数のリードフレームの上面領域のうちの所定領域にオープンされた領域を有する反射性の第1胴体、上記第1胴体のオープンされた領域に対応する第1開口部を有し、上記第1胴体の上面の上に配置された透光性の第2胴体、上記第2胴体の第1開口部に露出された上記複数のリードフレームのうち、少なくとも1つの上に配置された発光チップ、及び上記第2胴体の第1開口部に配置され、上記発光チップをカバーする第1樹脂層を含む。
【選択図】図2
Description
上記光学レンズ181の周りは光の背光分布のために円形状に形成され、上面視して円形状または楕円形状に形成される。
図5及び図6のように、複数のリードフレーム121、131の上に反射率の高い樹脂材質を用いてモールディング方式によりオープンされた領域150−1を有する第1胴体141を射出成形し、図7のように、上記第1胴体141が形成されれば、透過率の高い樹脂材質を用いてトランスファー(Transfer)または注入(injection)方式により透光性の第2胴体151を射出成形するようになる。上記第2胴体151の内には第1及び第2開口部150、151が形成される。そして、図2及び図3のように上記第2胴体151の第1開口部150に露出されたリードフレーム121、131の上に発光チップ161を搭載し、第2開口部150Aに露出されたリードフレーム121、131の上に保護素子163を搭載するようになる。そして、発光チップ161及び保護素子163は、ワイヤー165、166、168により複数のリードフレーム121、131と電気的に連結させてくれる。そして、上記第2胴体151の第1開口部150には樹脂層171がディスフェンシングまたはモールディングされて形成され、上記樹脂層171には蛍光体が添加できる。上記樹脂層171の上には光学レンズ181が結合される。上記光学レンズ181はトランスファーモールディング方式により射出成形したり、予め製造された光学レンズ181を接着方式により付着することができる。上記樹脂層171と光学レンズ181との間には他の樹脂層がさらに形成され、これに対して限定するものではない。上記第1胴体141の上面と上記第2胴体151の上面には接着層が形成され、これに対して限定するものではない。
図9は、本発明の第2実施形態に従う発光素子を示す図である。上記第2実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
図10は、本発明の第3実施形態に従う発光素子を示す側断面図である。第3実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
図11は、本発明の第4実施形態に従う発光素子を示す側断面図である。上記第4実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
図12は、本発明の第5実施形態に従う発光素子を示す側断面図である。上記第5実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
図13は、本発明の第6実施形態に従う発光素子を示す側断面図である。上記第6実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
図14は、本発明の第7実施形態に従う発光素子の側断面図である。上記第2実施形態を説明するに当たって、第1実施形態と同一な部分は第1実施形態を参照する。
実施形態による発光素子又は発光素子は、照明システムに適用される。前記照明システムは、複数の発光素子がアレイされた構造を含み、図18及び図19に示されている表示装置、図20及び図21に示されている照明装置とを含み、照明灯、信号灯、車両前照灯、電光板などが含まれる。
121、131、221、231、321、325、331 リードフレーム
141、241、341 第1胴体
151、251、351 第2胴体
161、261、361 発光チップ
171、172、173、174、271、371 樹脂層
181、281、381 光学レンズ
Claims (19)
- 複数のリードフレームと、
前記複数のリードフレームの上に配置され、前記複数のリードフレームの上面領域のうち、所定領域にオープンされた領域を有する反射性の第1胴体と、
前記第1胴体のオープンされた領域に対応する第1開口部を有し、前記第1胴体の上面の上に配置された透光性の第2胴体と、
前記第2胴体の第1開口部に露出された前記複数のリードフレームのうち、少なくとも1つの上に配置された発光チップと、
前記第2胴体の第1開口部に配置され、前記発光チップをカバーする第1樹脂層と、
を含むことを特徴とする、発光素子。 - 前記第1胴体の上面は前記第2胴体の下面と接触され、前記発光チップの上面の高さより低い高さに配置されることを特徴とする、請求項1に記載の発光素子。
- 前記第1胴体は前記発光チップに隣接した内側領域と、前記内側領域から延長され、前記内側領域より厚い外側領域とを含むことを特徴とする、請求項1または2に記載の発光素子。
- 前記第1胴体の内側領域の上面は前記発光チップに垂直な法線から65度乃至89度の間の角度に傾斜したことを特徴とする、請求項3に記載の発光素子。
- 前記第1胴体の外側領域の上面は前記発光チップの上面より低い高さを有し、平坦な面で配置されることを特徴とする、請求項3または4に記載の発光素子。
- 前記複数のリードフレームのうち、第1リードフレームには前記発光チップが配置され、前記発光チップの周りに凹な第1溝と、前記溝の周りに第1孔を含み、前記第1溝及び前記第1孔には前記第1胴体が配置されることを特徴とする、請求項1乃至5のうち、いずれか1項に記載の発光素子。
- 前記複数のリードフレームのうち、前記第1リードフレームから離隔し、前記発光チップと電気的に連結された第2リードフレームを含み、前記第2リードフレームは前記第1開口部に隣接した領域に前記第1開口部の幅より長いライン形状を有する第2溝と、前記第2溝の外側に第2孔を含み、
前記第2溝及び前記第2孔には前記第1胴体が配置され、
前記第1孔及び前記第2孔は上部幅より下部幅が広いことを特徴とする、請求項6に記載の発光素子。 - 前記第1胴体は前記複数のリードフレームの間に配置された間隙部を含み、前記間隙部は下部が広く、上部が狭く形成されることを特徴とする、請求項1乃至7のうち、いずれか1項に記載の発光素子。
- 前記第1胴体と前記第2胴体とは互いに異なる材質を含むことを特徴とする、請求項1乃至8のうち、いずれか1項に記載の発光素子。
- 前記第1胴体は白色樹脂材質を含み、前記第2胴体は透光性のシリコンまたはエポキシ樹脂材質を含むことを特徴とする、請求項9に記載の発光素子。
- 前記第1胴体は前記発光チップから放出された波長に対して70%以上の反射率を有する材質を含み、
前記第2胴体は前記発光チップから放出された波長に対して70%以上の透過率を有する材質を含むことを特徴とする、請求項10に記載の発光素子。 - 前記第2胴体は前記第1胴体の内側領域より前記発光チップに隣接し、前記第1胴体のオープンされた領域に露出された前記複数のリードフレームと接触される内側部を含むことを特徴とする、請求項1乃至11のうち、いずれか1項に記載の発光素子。
- 前記第1樹脂層の内部及び前記発光チップの上面に配置された蛍光体を含むことを特徴とする、請求項1乃至11のうち、いずれか1項に記載の発光素子。
- 前記第1樹脂層及び前記第2胴体の上に配置された光学レンズを含み、
前記第2胴体の上部から突出し、前記光学レンズに結合された複数の突起を含むことを特徴とする、請求項1乃至13のうち、いずれか1項に記載の発光素子。 - 前記第1樹脂層と前記光学レンズとの間に第2樹脂層を含むことを特徴とする、請求項14に記載の発光素子。
- 前記光学レンズは上部中心が前記発光チップの方向に凹な凹部を含むことを特徴とする、請求項14または15に記載の発光素子。
- 前記第1及び第2胴体には前記第1開口部から離隔した第2開口部を含み、
前記第2開口部の底は前記複数のリードフレームが露出され、
前記第2開口部に露出された前記複数のリードフレームのうちの少なくとも1つには保護素子が配置されることを特徴とする、請求項1乃至16のうち、いずれか1項に記載の発光素子。 - 前記第1胴体と前記第2胴体との間に透光性の接着層を含むことを特徴とする、請求項1乃至17のうち、いずれか1項に記載の発光素子。
- 前記第1リードフレームは凹なキャビティーを含み、
前記キャビティーに前記発光チップ及び前記第1樹脂層が配置されることを特徴とする、請求項1乃至18のうち、いずれか1項に記載の発光素子。
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Also Published As
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EP2595205B1 (en) | 2020-04-15 |
EP2595205A2 (en) | 2013-05-22 |
US20160079507A1 (en) | 2016-03-17 |
CN103117348A (zh) | 2013-05-22 |
EP2595205A3 (en) | 2015-12-02 |
US20130121000A1 (en) | 2013-05-16 |
CN103117348B (zh) | 2017-08-18 |
KR20130054040A (ko) | 2013-05-24 |
US10128423B2 (en) | 2018-11-13 |
KR101905535B1 (ko) | 2018-10-10 |
US9231166B2 (en) | 2016-01-05 |
JP6104570B2 (ja) | 2017-03-29 |
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