JP2007005016A5 - - Google Patents

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Publication number
JP2007005016A5
JP2007005016A5 JP2005180778A JP2005180778A JP2007005016A5 JP 2007005016 A5 JP2007005016 A5 JP 2007005016A5 JP 2005180778 A JP2005180778 A JP 2005180778A JP 2005180778 A JP2005180778 A JP 2005180778A JP 2007005016 A5 JP2007005016 A5 JP 2007005016A5
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JP
Japan
Prior art keywords
light
light source
prism
mounting surface
source according
Prior art date
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Granted
Application number
JP2005180778A
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Japanese (ja)
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JP4530923B2 (en
JP2007005016A (en
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Publication date
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Priority to JP2005180778A priority Critical patent/JP4530923B2/en
Priority claimed from JP2005180778A external-priority patent/JP4530923B2/en
Publication of JP2007005016A publication Critical patent/JP2007005016A/en
Publication of JP2007005016A5 publication Critical patent/JP2007005016A5/ja
Application granted granted Critical
Publication of JP4530923B2 publication Critical patent/JP4530923B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (6)

矩形形状の回路基板の実装面に所定の間隔で配置実装された複数の発光素子を封止する透明材料により形成される封止部の空気界面を光取り出し面とする光源であって、
前記封止部は前記実装面に対して概ね垂直な方向に延在する互いに平行な２つの側面を有し、当該２つの側面にはそれぞれ前記発光素子から発せられる光を前記方向に全反射させる複数の斜面を有するプリズムアレイを備える光源。 The air interface of the sealing portion is formed a plurality of light emitting elements arranged implemented at predetermined intervals on the mounting surface of the circuit board of rectangular shape by a transparent material for sealing a light source to the light extraction surface,
Total reflection the sealing portion has two side surfaces parallel to each other extending in a generally vertical direction against the mounting surface, the light emitted from each of the said two sides the light emitting element to the direction A light source comprising a prism array having a plurality of inclined surfaces. 前記プリズムアレイは、前記封止部の長手方向に延在する複数のプリズムを備え、
前記プリズムは、各々の有する斜面が前記側面に対して成す傾斜角がそれぞれ異なる請求項１に記載の光源。 The prism array includes a plurality of prisms extending in the longitudinal direction of the front Kifutome portion,
2. The light source according to claim 1, wherein each of the prisms has a different inclination angle with respect to the side surface . 前記プリズムの斜面が前記実装面と成す第１の角度は、当該プリズムが前記回路基板から遠ざかるに従って大きくなることを特徴とする請求項２に記載の光源。   3. The light source according to claim 2, wherein the first angle formed by the slope of the prism and the mounting surface increases as the prism moves away from the circuit board. 前記第１の角度をθ１とし、前記発光素子の発光中心と前記斜面とを結ぶ直線が前記実装面と成す第２の角度をθ２とすると、
θ１ ≒ π／４ ＋ θ２／２
の関係が成立することを特徴とする請求項３に記載の光源。 When the first angle is θ1, and the second angle formed by the straight line connecting the light emission center of the light emitting element and the inclined surface with the mounting surface is θ2,
θ1 ≒ π / 4 + θ2 / 2
The light source according to claim 3, wherein the relationship is established. 前記プリズムは前記実装面と前記側面との境界から前記方向に向かって所定の距離だけ延在し、前記プリズムの延在端に隣接する矩形ブロックを更に備える、請求項４に記載の光源。 The prism extends a predetermined distance toward the direction from the boundary between the side surface and the mounting surface further comprises a rectangular block adjacent to the extending end of the prisms, the light source of claim 4. 側面部に位置する入射面から導入された光を、互いに対向する反射面と出射面との間を全反射を繰り返しながらその全面に伝播させると共に、その一部を散乱させて、当該出射面より出射させて面状の照明を行う導光板と、
前記入射面に対向して設置され、前記導光板に光を供給する請求項１乃至５のいずれかに記載の光源とを備えるバックライト。 The light introduced from the incident surface located on the side surface is propagated to the entire surface while repeating total reflection between the reflecting surface and the emitting surface facing each other, and a part of the light is scattered from the emitting surface. A light guide plate that emits a planar illumination; and
A backlight provided with the light source according to any one of claims 1 to 5, which is disposed to face the incident surface and supplies light to the light guide plate.
JP2005180778A 2005-06-21 2005-06-21 Light source and backlight Expired - Fee Related JP4530923B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005180778A JP4530923B2 (en) 2005-06-21 2005-06-21 Light source and backlight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005180778A JP4530923B2 (en) 2005-06-21 2005-06-21 Light source and backlight

Publications (3)

Publication Number Publication Date
JP2007005016A JP2007005016A (en) 2007-01-11
JP2007005016A5 true JP2007005016A5 (en) 2008-06-19
JP4530923B2 JP4530923B2 (en) 2010-08-25

Family

ID=37690442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005180778A Expired - Fee Related JP4530923B2 (en) 2005-06-21 2005-06-21 Light source and backlight

Country Status (1)

Country Link
JP (1) JP4530923B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2008143201A1 (en) * 2007-05-17 2010-08-05 昭和電工株式会社 Semiconductor light emitting device
KR101592584B1 (en) * 2009-11-23 2016-02-11 엘지이노텍 주식회사 Blacklight unit
US20130163283A1 (en) * 2010-07-23 2013-06-27 Sharp Kabushiki Kaisha Light guide, light source unit, illuminating device, and display device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11258600A (en) * 1998-03-10 1999-09-24 Denso Corp Surface light source device for liquid crystal panel
JP4442474B2 (en) * 2005-03-09 2010-03-31 パナソニック株式会社 Linear light source device and manufacturing method thereof

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