Image sensor having different-sized color filters
US12369412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2022 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Nov 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image sensor includes a pixel array including a plurality of pixels arranged in directions, parallel to an upper surface of a substrate, each of the plurality of pixels including at least one photodiode, a color filter above the at least one photodiode, and a pixel circuit below the at least one photodiode, and a logic circuit configured to obtain a pixel signal from the plurality of pixels. The plurality of pixels include red pixels each having a red color filter, green pixels each having a green color filter, and blue pixels each having a blue color filter, and a size of a first red color filter included in a first red pixel, disposed in a first area separated by a first distance from a center of the pixel array, is greater than a size of a second red color filter included in a second red pixel, disposed in a second area separated from the center of the pixel array by a second distance, greater than the first distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.