05 February 2020
The solution to achieve the full-screen profile on smartphones has evolved much. From terrific notches and passable punch-holes to pop-up mechanisms, we have seen everything. But that’s not the peak of the emergence and manufacturers are yet to put their best effort forward. We are talking about the very new under-display camera tech which is still budding and requires much time to bloom.
Xiaomi and Oppo first tease their take on the technology last year and amused everyone, with Oppo even demoing the prototype at last year’s MWC Shanghai event. But employing the camera beneath the display is not a simple task and it has to overcome several hurdles before commercializing.
At this stage, we don’t hope for it to commercialize too soon as the tech has its own challenges to deal with. One such challenge has just been shared by Xiaomi’s VP, Lu Weibing. On his Weibo account, he noted that the under-screen selfie camera tech which he refers to as CUP – “Camera Under Panel” needs more time to mature. There are a few downsides associated and they need to be addressed first for a seamless experience because what’s the charm in bringing a half-baked technology to the public.
He showed concern on the screen’s PPI and light transmittance. He added that the current screen PPI is about 400 and at this level, the light transmittance in the cameras is very low and this affects the photo effect. Because the high pixel density means that the low transmission of the light in the camera.
And, even if the PPI level is lowered to allow more light, this would bring color patches in the display area. Such technical difficulties require an effective solution that could balance display and camera effects. He further said that while the company announced the tech last year, it is still "far from achieving mass production."
Several other manufacturers are also rumored to join the Camera Under Panel tech, including Samsung and if the latest tip is to be believed then Nokia is also one of them.