JP2012216763A - 発光装置、照明装置、および表示装置 - Google Patents
発光装置、照明装置、および表示装置 Download PDFInfo
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Abstract
【解決手段】 バックライトユニット1に備えられる発光装置11は、光を出射するLEDチップ111aと、プリント基板12上に設けられ、LEDチップ111aを支持する基台111bと、LEDチップ111aおよび基台111bを覆うようにLEDチップ111aに当接して設けられ、光を拡散させるレンズ112とを備える。このレンズ112は、上面112aにおいて到達した光を反射させて側面112bから出射させる第1湾曲部1122と、到達した光を外方に屈折させて上面112aから出射させる第2湾曲部1123とを有する。
【選択図】 図2
Description
光を出射する発光素子と、
前記発光素子を支持する基台と、
前記発光素子の発光面側に設けられ、前記発光素子から出射された光を複数の方向に反射または屈折させる柱状の光学部材であって、前記被照射体に対向する側の上面が中央部に凹みを有して形成される光学部材と、を含み、
前記光学部材の前記上面は、前記発光素子から出射されて前記光学部材の内部を進行する光を反射させて、前記光学部材の側面から前記光学部材の外部に出射させる第1領域と、前記発光素子から出射されて前記光学部材の内部を進行する光を屈折させて前記上面から出射させる第2領域とを有することを特徴とする発光装置である。
前記反射部材は、
前記光学部材の周囲の位置において、前記光学部材の光軸に直交する方向に平面状に延びる基部と、
前記基部に対して傾斜して前記光学部材を取り囲む傾斜部であって、前記光学部材に臨む面が平面状に延びる傾斜部と、を有することを特徴とする。
前記表示パネルの背面に光を照射する、前記発光装置を含む照明装置、または、前記照明装置とを備えることを特徴とする表示装置である。
(1)LED形状凹部4041に対してLED500を挿入するときの水平方向に関する挿入ばらつき幅が「40μm」である。
(2)レンズ112は、その光軸S1の水平方向の位置ずれ幅が「10μm以下」であることを許容範囲として成形される。
2 液晶パネル
3 拡散板
11,211,311 発光装置
12 プリント基板
13 フレーム部材
100,200,300 液晶表示装置
111a LEDチップ
111b 基台
112 レンズ
118 反射部材
400 インサート成形機
Claims (10)
- 被照射体に光を照射する発光装置であって、
光を出射する発光素子と、
前記発光素子を支持する基台と、
前記発光素子の発光面側に設けられ、前記発光素子から出射された光を複数の方向に反射または屈折させる柱状の光学部材であって、前記被照射体に対向する側の上面が中央部に凹みを有して形成される光学部材と、を含み、
前記光学部材の前記上面は、前記発光素子から出射されて前記光学部材の内部を進行する光を反射させて、前記光学部材の側面から前記光学部材の外部に出射させる第1領域と、前記発光素子から出射されて前記光学部材の内部を進行する光を屈折させて前記上面から出射させる第2領域とを有することを特徴とする発光装置。 - 前記第1領域は、前記第2領域よりも、前記発光素子に近い側に設けられることを特徴とする請求項1に記載の発光装置。
- 前記光学部材の前記上面における中央部の凹んだ部分には、入射する光の光量を減衰させる光量減衰部が形成されていることを特徴とする請求項1または2に記載の発光装置。
- 前記光学部材と前記被照射体との間において、前記発光素子の光軸上に、前記光学部材の前記上面に固定して設けられ、前記光学部材からの光を調整する光量調整部材を備えることを特徴とする請求項1〜3のいずれか1つに記載の発光装置。
- 前記光量調整部材は、前記光学部材の前記上面における前記第1領域と前記第2領域との境界線を前記第2領域側に超えた位置まで延びて形成されることを特徴とする請求項4に記載の発光装置。
- 前記光学部材は、その底面に、光を反射する反射部が設けられることを特徴とする請求項1〜5のいずれか1つに記載の発光装置。
- 前記光学部材から出射された光を反射する反射部材をさらに含み、
前記反射部材は、
前記光学部材の周囲の位置において、前記光学部材の光軸に直交する方向に平面状に延びる基部と、
前記基部に対して傾斜して前記光学部材を取り囲む傾斜部であって、前記光学部材に臨む面が平面状に延びる傾斜部と、を有することを特徴とする請求項1〜6のいずれか1つに記載の発光装置。 - 請求項7に記載の発光装置を複数備え、複数の発光装置が整列配置されていることを特徴とする照明装置。
- 前記複数の発光装置が備える複数の反射部材は、隣接する発光装置間で連続するように、前記傾斜部において一体的に形成されていることを特徴とする請求項8に記載の照明装置。
- 表示パネルと、
前記表示パネルの背面に光を照射する、請求項1〜7のいずれか1つに記載の発光装置を含む照明装置、または、請求項8もしくは9に記載の照明装置とを備えることを特徴とする表示装置。
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JP2011278581A JP2012216763A (ja) | 2011-03-25 | 2011-12-20 | 発光装置、照明装置、および表示装置 |
US14/006,873 US20140376219A1 (en) | 2011-03-25 | 2012-02-27 | Light-emitting device, illuminating apparatus, and display apparatus |
KR1020137027759A KR20130135970A (ko) | 2011-03-25 | 2012-02-27 | 발광 장치, 조명 장치 및 표시 장치 |
CN201280025148.XA CN103547854A (zh) | 2011-03-25 | 2012-02-27 | 发光装置、照明装置和显示装置 |
PCT/JP2012/054792 WO2012132707A1 (ja) | 2011-03-25 | 2012-02-27 | 発光装置、照明装置、および表示装置 |
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US20140376219A1 (en) | 2014-12-25 |
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