Lenovo has revealed a new laptop at this year's CES trade show that features an under display camera. Under display cameras have long been the holy grail for phone and laptop manufacturers, as they eliminate the need for screen notches or punch holes. However, implementing such a camera design is inherently difficult, as placing a semi-opaque screen directly in front of a camera severely impacts its recording quality. The multiple thin-film layers that constitute an OLED display, along with its pixel grid, not only diffract light passing through to the under display camera, they also cause potential color casts. Furthermore, the screen's partial opacity restricts light entering a camera, leading to increased image noise.
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