Samsung Isocell technology promises better image quality from mobile device sensors
Samsung recently revealed information about its new Isocell technology, which is designed to deliver better image quality from CMOS sensors despite the physical constraints of mobile device sensor size. As evidence of the need for technology to counteract small sensors with higher resolution, Samsung cites market research firm Techno System Research’s findings that about 66 percent of smartphones produced in 2014 will be equipped with 8 megapixel or higher sensors.
According to Samsung, Isocell technology creates a physical barrier “between neighboring pixels,” which enables each photodiode to absorb additional photons and, at the same time, minimizes electrical crosstalk between pixels. Samsung estimates that Isocell technology decreases this crosstalk by about 30 percent compared to BSI (back side illuminated) sensors. The end result is said to deliver more accurate color rendition and sharper images, particularly when captured under low light conditions, as well as broader dynamic range.
And, finally, with Isocell’s estimated 20 percent wider chief ray angle (CRA) camera module sizes can be kept small enough to fit within slender mobile device designs.
Samsung's first Isocell imager — the S5K4H5YB 8-megapixel sensor — is scheduled for mass production in Q4 2013, so it's likely we'll see how this new technology performs before the end of the year or early in 2014.