JP2011003526A5 - - Google Patents
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- JP2011003526A5 JP2011003526A5 JP2009268205A JP2009268205A JP2011003526A5 JP 2011003526 A5 JP2011003526 A5 JP 2011003526A5 JP 2009268205 A JP2009268205 A JP 2009268205A JP 2009268205 A JP2009268205 A JP 2009268205A JP 2011003526 A5 JP2011003526 A5 JP 2011003526A5
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light source
- prism
- back surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Description
本発明にかかる照明装置は、導光板と、前記導光板の側面に配置された光源と、前記導光板の裏面において、前記光源からの遠近を規定する第１方向に間欠的に形成された複数のプリズム列とを備え、前記複数のプリズム列の各々は、前記導光板の前記第１方向の断面において、前記光源に最も近い部分が谷の繰り返し谷山形状からなるノコギリ形状であり、前記ノコギリ形状の各谷は、前記導光板の裏面の平面より退避しており、各前記プリズム列において最も前記光源に近い前記谷の退避深さは、他の谷のそれよりも浅く、前記ノコギリ形状の各山は、前記導光板の裏面の平面より突出している。 Lighting device according to the present onset Ming, a light guide plate, a light source disposed on a side surface of the light guide plate, the back surface of the light guide plate, which is intermittently formed in a first direction to define the distance from the light source Each of the plurality of prism rows has a saw-tooth shape in which a portion closest to the light source in the cross section in the first direction of the light guide plate is a valley-shaped repetitive valley shape. Each valley of the shape is retracted from the plane of the back surface of the light guide plate, and the retract depth of the valley closest to the light source in each prism row is shallower than that of the other valleys, and the saw-shaped Each mountain protrudes from the plane of the back surface of the light guide plate.
本発明にかかる照明装置によれば、導光板と、前記導光板の側面に配置された光源と、前記導光板の裏面において、前記光源からの遠近を規定する第１方向に間欠的に形成された複数のプリズム列とを備え、前記複数のプリズム列の各々は、前記導光板の前記第１方向の断面において、前記光源に最も近い部分が谷の繰り返し谷山形状からなるノコギリ形状であり、前記ノコギリ形状の各谷は、前記導光板の裏面の平面より退避しており、各前記プリズム列において最も前記光源に近い前記谷の退避深さは、他の谷のそれよりも浅く、前記ノコギリ形状の各山は、前記導光板の裏面の平面より突出していることにより、プリズム列との反射により想定外の角度で導光板から斜め方向への放射する光が減少するため、正面方向に高い輝度の実現が可能になる。よって光学シートの使用を減らすことができ、光源からの光をディスプレイに効率的に照射できる。 According to the illumination device according to the present onset bright, a light guide plate, a light source disposed on a side surface of the light guide plate, the back surface of the light guide plate, intermittently formed in a first direction to define the distance from the light source A plurality of prism rows, each of the plurality of prism rows is in a saw-tooth shape in which the portion closest to the light source in the cross section in the first direction of the light guide plate is a valley-shaped repetitive valley shape, Each saw-shaped valley is retracted from the plane of the back surface of the light guide plate, and the retract depth of the valley closest to the light source in each prism row is shallower than that of the other valleys. Since each peak of the shape protrudes from the plane of the back surface of the light guide plate, light emitted in an oblique direction from the light guide plate at an unexpected angle is reduced due to reflection from the prism row, and thus is high in the front direction. Realization of brightness Possible to become. Therefore, the use of the optical sheet can be reduced, and the light from the light source can be efficiently irradiated onto the display.
Claims (3)
前記導光板の側面に配置された光源と、
前記導光板の裏面において、前記光源からの遠近を規定する第１方向に間欠的に形成された複数のプリズム列とを備え、
前記複数のプリズム列の各々は、前記導光板の前記第１方向の断面において、前記光源に最も近い部分が谷の繰り返し谷山形状からなるノコギリ形状であり、
前記ノコギリ形状の各谷は、前記導光板の裏面の平面より退避しており、
各前記プリズム列において最も前記光源に近い前記谷の退避深さは、他の谷のそれよりも浅く、
前記ノコギリ形状の各山は、前記導光板の裏面の平面より突出している、
照明装置。 A light guide plate;
A light source disposed on a side surface of the light guide plate;
A plurality of prism rows intermittently formed in a first direction defining the perspective from the light source on the back surface of the light guide plate;
Each of the plurality of prism rows has a saw-tooth shape in which the portion closest to the light source has a trough-repeated trough shape in the cross section in the first direction of the light guide plate,
Each saw-shaped valley is retracted from the plane of the back surface of the light guide plate,
The retreat depth of the valley closest to the light source in each prism row is shallower than that of other valleys,
Each sawtooth-shaped mountain protrudes from the plane of the back surface of the light guide plate.
Lighting device.
請求項１に記載の照明装置。 The crest farthest from the light source in each prism row has a flat portion and protrudes most in each prism row ,
The lighting device according to claim 1.
請求項１または２に記載の照明装置。 The plurality of prism rows, as the distance from the light source increases , the interval of intermittent formation of the plurality of prism rows becomes narrower .
The illumination device according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009268205A JP5264684B2 (en) | 2009-05-21 | 2009-11-26 | Lighting device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009122849 | 2009-05-21 | ||
| JP2009122849 | 2009-05-21 | ||
| JP2009268205A JP5264684B2 (en) | 2009-05-21 | 2009-11-26 | Lighting device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011003526A JP2011003526A (en) | 2011-01-06 |
| JP2011003526A5 true JP2011003526A5 (en) | 2011-11-24 |
| JP5264684B2 JP5264684B2 (en) | 2013-08-14 |
Family
ID=43561318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009268205A Expired - Fee Related JP5264684B2 (en) | 2009-05-21 | 2009-11-26 | Lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5264684B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI363199B (en) | 2008-10-30 | 2012-05-01 | Au Optronics Corp | Liquid crystal display and light quide plate thereof |
| JP6355041B2 (en) * | 2014-03-28 | 2018-07-11 | パナソニックＩｐマネジメント株式会社 | Light guide member and light guide member manufacturing method |
| EP3550205A1 (en) * | 2018-04-04 | 2019-10-09 | ZKW Group GmbH | Light conductor for a motor vehicle light module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3644787B2 (en) * | 1996-05-09 | 2005-05-11 | 松下電器産業株式会社 | Planar illumination system |
| JP2004070169A (en) * | 2002-08-08 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Light guide plate and back light apparatus using the same |
| JP2006344598A (en) * | 2005-06-10 | 2006-12-21 | Samsung Electronics Co Ltd | Light guide plate, and backlight assembly and liquid crystal display (lcd) device with light guide plate |
-
2009
- 2009-11-26 JP JP2009268205A patent/JP5264684B2/en not_active Expired - Fee Related
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