JP2010038929A5 - - Google Patents
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- Publication number
- JP2010038929A5 JP2010038929A5 JP2008197942A JP2008197942A JP2010038929A5 JP 2010038929 A5 JP2010038929 A5 JP 2010038929A5 JP 2008197942 A JP2008197942 A JP 2008197942A JP 2008197942 A JP2008197942 A JP 2008197942A JP 2010038929 A5 JP2010038929 A5 JP 2010038929A5
- Authority
- JP
- Japan
- Prior art keywords
- light
- area
- prism
- light source
- facing
- 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.)
- Granted
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- 238000005286 illumination Methods 0.000 claims 3
- 230000000875 corresponding Effects 0.000 claims 1
Claims (3)
光源と、
前記光源の発光が入射する入射面と、前記発光を導光して前記表示画面に照明光として出光する出射面と、前記出射面と対向する対向面を有する導光板と、
前記対向面に形成された複数の第一プリズムと複数の第二プリズムと、を備え、
前記第一プリズムは、前記光源からの光の進行方向に対して垂直な底辺を持ち、
前記第二プリズムは、前記光源からの光を反射して前記出射面から斜めに出射する反射面を持ち、
前記出射面が、前記開口領域に対応するとともに前記照明光を出射する出射領域と、前記遮光領域に対応するとともに前記照明光が出射されない非出射領域を有し、
前記対向面には、前記非出射領域に対向するエリアに前記第二のプリズムのみが設けられたことを特徴とする表示装置。 A display element having an opening area and a light shielding area on the display screen;
A light source;
An incident surface on which light emitted from the light source is incident; an exit surface that guides the emitted light and emits light as illumination light on the display screen; and a light guide plate having a facing surface facing the exit surface ;
A plurality of first prisms and a plurality of second prisms formed on the facing surface;
The first prism has a base perpendicular to the traveling direction of light from the light source,
The second prism has a reflection surface that reflects light from the light source and obliquely emits from the emission surface,
The emission surface corresponds to the opening area and has an emission area that emits the illumination light, and has a non-emission area that corresponds to the light shielding area and from which the illumination light is not emitted,
The display device according to claim 1, wherein only the second prism is provided in an area facing the non-outgoing area on the facing surface.
The display device according to claim 1 , wherein a reflective layer having an opening corresponding to the opening region is provided between the light guide plate and the display element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008197942A JP5138493B2 (en) | 2008-07-31 | 2008-07-31 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008197942A JP5138493B2 (en) | 2008-07-31 | 2008-07-31 | Display device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010038929A JP2010038929A (en) | 2010-02-18 |
| JP2010038929A5 true JP2010038929A5 (en) | 2011-06-23 |
| JP5138493B2 JP5138493B2 (en) | 2013-02-06 |
Family
ID=42011600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008197942A Expired - Fee Related JP5138493B2 (en) | 2008-07-31 | 2008-07-31 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5138493B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101796332B1 (en) | 2010-02-24 | 2017-11-09 | 도레이 카부시키가이샤 | White reflective film for edge-lit backlight and backlight using the aforementioned |
| CN110325792A (en) * | 2017-02-21 | 2019-10-11 | 康宁股份有限公司 | Device comprising integrated backlight unit and display panel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10319242A (en) * | 1997-05-14 | 1998-12-04 | Sanyo Electric Co Ltd | Light guide plate |
| JP2003131227A (en) * | 2001-10-26 | 2003-05-08 | Nitto Denko Corp | Liquid crystal display device |
| JP2004184792A (en) * | 2002-12-05 | 2004-07-02 | Toyota Industries Corp | Optical element, planar illuminator and liquid crystal display |
| JP2005300775A (en) * | 2004-04-08 | 2005-10-27 | Sharp Corp | Liquid crystal display device and surface light source |
| JP2006126462A (en) * | 2004-10-28 | 2006-05-18 | Citizen Watch Co Ltd | Liquid crystal display device |
| JP2008041295A (en) * | 2006-08-02 | 2008-02-21 | Seiko Instruments Inc | Lighting system and display device using the same |
-
2008
- 2008-07-31 JP JP2008197942A patent/JP5138493B2/en not_active Expired - Fee Related
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