Image sensor device using thin film light source arranged light receiving elements and image to be sensed
US6815654B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1997 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor device which optically reads out a document is disclosed, which comprises an image sensor (110) having a plurality of light receiving elements (112) arranged regularly facing a document to be read out; and a thin film light source (120) arranged tightly contacted on the document side of the image sensor (110), the thin film light source (120) emitting light to the document, wherein-the thin film light source (120) includes more than one light emission portion having a smaller area than that of a photoelectric conversion element, the light emission portion corresponding to each of the photoelectric conversion elements, and the light emission portion includes an opaque electrode (124) serving as a light blocking layer on the photoelectric conversion element side and is, arranged at a center of a lower surface of the photoelectric conversion element (112). A transparent substrate has a thickness of about 50 &mgr;m, the thin film light source (120) has a thickness of less than 1 &mgr;m, and the image sensor (110) has a thickness of less than 1 mm. The image sensor device has a thickness of about 1 mm, which is a total of these thicknesses. The image sensor device is sma…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.