JP2005227566A5 - - Google Patents
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- Publication number
- JP2005227566A5 JP2005227566A5 JP2004036572A JP2004036572A JP2005227566A5 JP 2005227566 A5 JP2005227566 A5 JP 2005227566A5 JP 2004036572 A JP2004036572 A JP 2004036572A JP 2004036572 A JP2004036572 A JP 2004036572A JP 2005227566 A5 JP2005227566 A5 JP 2005227566A5
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light
- lens sheet
- refractive index
- 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.)
- Pending
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Claims (5)
前記導光板の側端面に配置された光源と、
周囲の領域より屈折率の高い領域が厚み方向に連続的に形成された柱状レンズが面内に複数配列され、厚さ方向に光を導く機能を有する柱状レンズシートを複数枚備えるとともに、
前記柱状レンズは、前記柱状レンズシートの面に立てた垂線の方向を基準として前記光源が配置された側と逆側に傾斜しており、
前記柱状レンズシートの傾斜角は導光板に近い側の柱状レンズシートほど小さいことを特徴とする照明装置。 A flat light guide plate formed of a transparent material;
A light source disposed on a side end surface of the light guide plate;
A plurality of columnar lenses in which a region having a higher refractive index than the surrounding region is continuously formed in the thickness direction are arranged in a plane, and a plurality of columnar lens sheets having a function of guiding light in the thickness direction are provided.
The columnar lens is inclined to the side opposite to the side on which the light source is disposed, with reference to the direction of a perpendicular standing on the surface of the columnar lens sheet,
The tilting angle of the columnar lens sheet is smaller in the columnar lens sheet closer to the light guide plate.
前記導光板の側端面から光を入射する光源と、
前記導光板の光照射面側に設けられ、特定角度範囲で入射した光を散乱するとともにそれ以外の角度で入射された光を透過するレンズシートを備える照明装置であって、
前記レンズシートは複数層設けられており、前記導光板に近いレンズシートほど前記特定角度範囲の中心角が前記導光板の光照射面に対して小さい角度であることを特徴とする照明装置。 A flat light guide plate formed of a transparent material;
A light source for entering light from a side end surface of the light guide plate;
An illumination device including a lens sheet that is provided on the light irradiation surface side of the light guide plate and scatters light incident at a specific angle range and transmits light incident at other angles,
The lens sheet is provided with a plurality of layers, and the lens sheet closer to the light guide plate has a smaller central angle of the specific angle range with respect to the light irradiation surface of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004036572A JP2005227566A (en) | 2004-02-13 | 2004-02-13 | Lighting device and display device equipped with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004036572A JP2005227566A (en) | 2004-02-13 | 2004-02-13 | Lighting device and display device equipped with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005227566A JP2005227566A (en) | 2005-08-25 |
| JP2005227566A5 true JP2005227566A5 (en) | 2007-03-29 |
Family
ID=35002320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004036572A Pending JP2005227566A (en) | 2004-02-13 | 2004-02-13 | Lighting device and display device equipped with the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005227566A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5960979B2 (en) * | 2010-12-16 | 2016-08-02 | リンテック株式会社 | Light diffusing film and method for producing light diffusing film |
| JP2013019988A (en) * | 2011-07-08 | 2013-01-31 | Mitsubishi Rayon Co Ltd | Light control film |
| JP6093113B2 (en) * | 2012-03-19 | 2017-03-08 | 株式会社巴川製紙所 | Anisotropic optical film |
| US9945990B2 (en) * | 2013-03-29 | 2018-04-17 | Lintec Corporation | Light diffusion film and light diffusion film manufacturing method |
| US9753191B2 (en) | 2013-03-29 | 2017-09-05 | Lintec Corporation | Light diffusion film and light diffusion film manufacturing method |
| JP7546354B2 (en) | 2019-12-13 | 2024-09-06 | リンテック株式会社 | Method for manufacturing light diffusion control member |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184921A (en) * | 1995-12-28 | 1997-07-15 | Casio Comput Co Ltd | Back light and liquid crystal display element equipped with back light |
| JP2000039501A (en) * | 1998-07-21 | 2000-02-08 | Fukuvi Chem Ind Co Ltd | Filter for display device |
| JP2001154026A (en) * | 1999-11-24 | 2001-06-08 | Nippon Leiz Co Ltd | Light transmission plate and plane illumination device |
| JP2002072183A (en) * | 2000-08-24 | 2002-03-12 | Sharp Corp | Projection type liquid crystal display device |
| JP2002116441A (en) * | 2000-10-06 | 2002-04-19 | Hitachi Ltd | Back light, method for manufacturing the same and liquid crystal display device which uses the same |
| JP4950393B2 (en) * | 2001-07-13 | 2012-06-13 | 恵和株式会社 | Optical sheet |
| JP2003202415A (en) * | 2001-12-28 | 2003-07-18 | Clariant Internatl Ltd | Optical film with controlled scattering and transmission characteristic and liquid crystal display using the same |
| JP2003251133A (en) * | 2002-03-07 | 2003-09-09 | Seibu Giken Co Ltd | Adsorption sheet and adsorber using the same |
| KR20030085190A (en) * | 2002-04-29 | 2003-11-05 | 삼성전기주식회사 | Method of producing a laminated lc filter |
-
2004
- 2004-02-13 JP JP2004036572A patent/JP2005227566A/en active Pending
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