Imaging device with zero ohmic drop in a data conductor
US9558706B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2011 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Nov 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device comprising comprises a matrix of pixels, at least one data conductor connected to several pixels of the matrix, organized row-wise and successively transporting signals delivered by respectively the pixels of the row and an electronic current generator supplying several pixels, each of the pixels comprising: a transistor delivering at the node of the pixel, the signal delivered by the pixel considered and wherein can flow a bias current from the current generator, and a first electronic switch connecting the node of the pixel to the data conductor associated with this pixel as a function of a selection signal of the pixel. Each of the pixels comprises a second electronic switch, distinct from the first electronic switch, joined to the node of the pixel, the current arising from the generator to be made to flow in the transistor as a function of the selection signal for the pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.