JP2021125302A - 面状光源の製造方法、面状光源、および光源 - Google Patents
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Abstract
【解決手段】配線基板上に配置される導光板の第1孔部内の配線基板上に配置された光源であって、発光素子と、発光素子の素子側面および素子上面を覆う第1透光性部材とを備え、第1透光性部材は、第1側面と第1側面から第1孔部の内側面側に突出した第2側面を含む凸部とを含む光源とを備える構造体を準備する工程を備える。さらに、構造体の第1孔部の第1主面側の開口から下方に向けて、光拡散剤を含む第1樹脂材料を射出する工程と、第1樹脂材料を硬化させ、平面視において第1孔部の内側面と第1透光性部材の第1側面との間の配線基板上に第1樹脂層を形成する工程とを備える。
【選択図】図12
Description
Claims (18)
- 配線基板と、
前記配線基板上に配置される導光板であって、第1主面と、前記第1主面の反対側の第2主面であって、前記配線基板と対向して配置される第2主面と、前記第1主面から前記第2主面まで貫通する第1孔部とを含む導光板と、
前記第1孔部内の前記配線基板上に配置された光源であって、素子上面と、素子下面と、前記素子上面と前記素子下面の間の素子側面とを含む発光素子と、前記素子側面および前記素子上面を覆う第1透光性部材とを備え、前記第1透光性部材は、第1側面と、前記第1側面から前記第1孔部の内側面側に突出した第2側面を含む凸部と、を含む光源と、
を備える構造体を準備する工程と、
前記構造体の前記第1孔部の前記第1主面側の開口から下方に向けて、光拡散剤を含む第1樹脂材料を射出する工程と、
前記第1樹脂材料を硬化させ、平面視において前記第1孔部の前記内側面と前記第1透光性部材の前記第1側面との間の前記配線基板上に、第1樹脂層を形成する工程と、
を備える面状光源の製造方法。 - 前記第1樹脂材料を射出する工程は、前記光源の上面に前記第1樹脂材料を射出する工程を含み、
前記第1樹脂層を形成する工程は、前記光源上の前記第1樹脂材料を硬化させて前記第1樹脂層を形成する工程を含む、請求項1に記載の面状光源の製造方法。 - 前記導光板の前記第1主面をマスクで覆った状態で、前記第1孔部に前記第1樹脂材料を射出する、請求項1または2に記載の面状光源の製造方法。
- 前記第1樹脂層上に、第2透光性部材を形成する工程をさらに備える請求項1〜3のいずれか1つに記載の面状光源の製造方法。
- 前記第2透光性部材上に、光拡散剤を含む第2樹脂層を形成する工程をさらに備える、請求項1〜4のいずれか1つに記載の面状光源の製造方法。
- 前記構造体を準備する工程は、前記導光板の前記第2主面側に、平面視において前記導光板の第1孔部と同じ位置に第2孔部を備える光反射性部材を備える積層構造体を準備する工程を含む、請求項1〜5のいずれか1つに記載の面状光源の製造方法。
- 前記積層構造体を準備する工程は、前記第1孔部および前記第2孔部を備えない第1積層構造体を準備する工程と、前記第1積層構造体に前記第1孔部および前記第2孔部を含む貫通孔を形成する工程と、を含む、請求項6に記載の面状光源の製造方法。
- 前記配線基板上に前記光源を配置する工程と、
前記貫通孔内に前記光源が位置するように前記積層構造体を前記配線基板に貼り合わせる工程と、
を含む、請求項7に記載の面状光源の製造方法。 - 前記構造体を準備する工程は、前記光源を準備する工程を含み、
前記光源を準備する工程は、
シート状の前記第1透光性部材を準備する工程と、
前記第1透光性部材上に複数の前記発光素子を載置する工程と、
前記発光素子の前記素子側面および前記素子上面を前記第1透光性部材で覆う工程と、
複数の前記発光素子の間において、第1刃厚の第1刃を用いて前記第1透光性部材の一部を除去して第1幅の第1溝を形成する工程と、
前記第1溝の底面において、前記第1刃厚よりも薄い第2刃厚の第2刃を用いて前記第1透光性部材の一部を除去して前記第1透光性部材を切断する工程と、
を含む、請求項1〜6のいずれか1つに記載の面状光源の製造方法。 - 配線基板と、
前記配線基板上に配置される導光板であって、第1主面と、前記第1主面の反対側の第2主面と、前記第1主面から前記第2主面まで貫通する第1孔部とを含む導光板と、
前記導光板の前記第2主面と、前記配線基板との間に配置され、平面視において前記導光板の前記第1孔部と重なる位置に第2孔部を含む光反射性部材と、
前記第1孔部および前記第2孔部を含む貫通孔内の前記配線基板上に載置される光源であって、素子上面と、素子下面と、前記素子上面と前記素子下面の間の素子側面とを含む発光素子と、前記素子側面および前記素子上面を覆う第1透光性部材とを備え、前記第1透光性部材は、第1側面と、前記第1側面から前記貫通孔の内側面側に突出した第2側面を含む凸部と、を含む光源と、
前記貫通孔内の前記配線基板上に配置される光反射性の第1樹脂層と、
を備える面状光源。 - 前記第1樹脂層は、前記光源上に配置される、請求項10に記載の面状光源。
- 前記第1樹脂層上に、第2透光性部材を備える、請求項10または11に記載の面状光源。
- 前記第2透光性部材上に、光拡散剤を含む第2樹脂層を備える、請求項12に記載の面状光源。
- 下面に電極を有する発光素子と、
前記発光素子の側面および上面を覆う第1透光性部材と、
を備え、
前記第1透光性部材は、第1側面と、前記第1側面よりも外側に突出した第2側面を含む凸部と、を含む光源。 - 前記凸部は、前記第1透光性部材の側面の上端に位置する、請求項14に記載の光源。
- 前記第1透光性部材は、蛍光体を含む請求項14または15に記載の光源。
- 前記第1透光性部材の上面を覆い、前記発光素子が発する光に対する反射性および透光性を有する光調整部材をさらに備える請求項14〜16のいずれか1つに記載の光源。
- 前記発光素子が発する光に対する反射性を有する被覆部材をさらに備え、
前記第1透光性部材は、前記発光素子の前記側面の一部を覆い、
前記被覆部材は、前記第1透光性部材の下方で前記発光素子の前記側面の他の一部を覆う請求項14〜17のいずれか1つに記載の光源。
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Citations (7)
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JPH03286575A (ja) * | 1990-04-03 | 1991-12-17 | Sumitomo Electric Ind Ltd | 発光素子 |
JP2004186488A (ja) * | 2002-12-04 | 2004-07-02 | Nichia Chem Ind Ltd | 発光装置、発光装置の製造方法および発光装置の色度調整方法 |
JP2005183777A (ja) * | 2003-12-22 | 2005-07-07 | Nichia Chem Ind Ltd | 半導体装置及びその製造方法 |
JP2007200763A (ja) * | 2006-01-27 | 2007-08-09 | Matsushita Electric Works Ltd | スイッチ装置 |
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JP2004186488A (ja) * | 2002-12-04 | 2004-07-02 | Nichia Chem Ind Ltd | 発光装置、発光装置の製造方法および発光装置の色度調整方法 |
JP2005183777A (ja) * | 2003-12-22 | 2005-07-07 | Nichia Chem Ind Ltd | 半導体装置及びその製造方法 |
JP2007200763A (ja) * | 2006-01-27 | 2007-08-09 | Matsushita Electric Works Ltd | スイッチ装置 |
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US11709312B2 (en) | 2021-07-19 | 2023-07-25 | Nichia Corporation | Planar light source including light adjustment members |
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