JP2018029179A - 発光装置及びその製造方法 - Google Patents
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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
- H01L33/58—Optical field-shaping elements
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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
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
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- H01L33/50—Wavelength conversion elements
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Abstract
【解決手段】発光装置は、発光素子、波長変換層及び光調整層を含む。発光素子は、第一上表面、下表面及び第一上表面及び下表面間にある側面を含む。波長変換層は、透明接着剤及び複数の波長変換粒子を含み、且つ第一上表面を覆う第二上表面を含む。光調整層は、発光素子の側面を囲み、且つ第一の組成又は第二の組成を有する。第一の組成は、第一接合剤及び第一接合剤に分散した複数の第一拡散粒子を含む。複数の第一拡散粒子の光調整層に対しての重量百分比は、20%以上である。第二の組成は、第二接合剤、第二接合剤に分散した複数の第二拡散粒子、及び第二接合剤に分散した複数の光散乱粒子を含む。複数の第二拡散粒子の光調整層に対しての重量百分比は、5%以上であり、且つ複数の光散乱粒子の光調整層に対しての重量百分比は、0.4%以上である。
【選択図】図1A
Description
102:頂面
104:底面
106:側面
120、220a、220b、220c、420、520a、520b、520c、720、920、1020、1120:発光素子
121:上表面
122、722:積載基板
123:下表面
124、724:発光層
125:側面
126、126a、126b、226a、226b、226c、426a、426b、726、726a、726b:接触電極
132、134、332a、334a 、332b、334b、332c、334c、732、734、932、934、1032、1034、1132、1134:延伸パッド
140、240a、240b、240c、440、540a、540b、540c、740、940、1040、1140:波長変換層
142、442:透明接着剤
144、444:波長変換粒子
150、350、450、750、950、1050、1150:光反射層
160、260’、260、260a、260b、260c 、360、460、560’、560、560a、560b、560c、760、960、1060、1160:光調整層
162、462、782:接合剤
164、464:拡散粒子
212、252、512:一時基板
214’、214、514’:接着層
240’、540’:波長変換片
232、234、332、534:切断工具
432、434:隆起
761:上表面
763:側面
780、980、1080、1180:顕色層
781、981:上表面
783、983、1083:側面
784:顔料
860’、860:光調整膜
880’、880:顕色膜
985:底面
1041、1141:上表面
1043:側面
1083:側面
1161:上表面
Sd:光調整層の側辺厚み
Sp1、Sp2、Sp3、Sp4:波長変換層の側辺厚み
St:総側辺厚み
Td:光調整層の上辺厚み
Tp:波長変換層の上辺厚み
Tt:総上辺厚み
Claims (10)
- 発光装置であって、
第一上表面、下表面及び前記第一上表面及び前記下表面間に位置する複数の第一側面を含む発光素子;
複数の波長変換粒子を含み、且つ前記第一上表面の真上に位置する第二上表面を含む波長変換層;及び
前記複数の第一側面を囲む光調整層であって、前記光調整層は、第一の組成又は第二の組成を有る、光調整層を含み、
前記第一の組成は、第一接合剤と、前記第一接合剤に分散した複数の第一拡散粒子とを含み、前記複数の第一拡散粒子の前記光調整層に対しての重量百分比は、20%以上であり、
前記第二の組成は、第二接合剤、前記第二接合剤に分散して複数の第二拡散粒子、及び前記第二接合剤に分散した複数の光散乱粒子を含み、前記複数の第二拡散粒子の前記光調整層に対しての重量百分比は、5%以上であり、且つ前記複数の光散乱粒子の前記光調整層に対しての重量百分比は、0.4%以上である、発光装置。 - 請求項1に記載の発光装置であって、
前記複数の第一拡散粒子の重量百分比は、30%から50%までである、発光装置。 - 請求項1に記載の発光装置であって、
前記複数の第一拡散粒子又は前記複数の第二拡散粒子の平均粒子径は、10μm以下である、発光装置。 - 請求項1に記載の発光装置であって、
前記波長変換層は、側辺厚み及び平均側辺厚みを有し、前記側辺厚みと前記平均側辺厚みとのバリエーションは、10%以上である、発光装置。 - 請求項1に記載の発光装置であって、
前記発光装置は、最外表面を有し、前記最外表面と複数の第一側面のうちの一つとの距離は、0.35mmよりも小さい、発光装置。 - 請求項1に記載の発光装置であって、
前記波長変換層は、第一上辺厚み及び第一側辺厚みを有し、前記第一上辺厚みは、前記第一側辺厚みよりも大きい、発光装置。 - 請求項1に記載の発光装置であって、
前記波長変換層は、第一上辺厚みを有し、前記光学調整層は、第二上辺厚みを有し、前記第一上辺厚みと前記第二上辺厚みとの比は、0.8から2.4までである、発光装置。 - 請求項1に記載の発光装置であって、
前記発光装置の色彩分布の均一度は、0°から70°までの視野角の下で、△u’v’値の差が0.0040よりも小さい、発光装置。 - 請求項1に記載の発光装置であって、
前記光調整層は、前記第二上表面を覆わない、発光装置。 - 請求項1に記載の発光装置であって、
前記光調整層を覆う顕色層を更に含む、発光装置。
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