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Xiaomi Finding it Difficult to Get Under-the-Display Technology
February 02, 2020
Samsung Display demonstrated several versions of under-the -display technology at CES including a version that was completely hidden scheduled for release in 2021. OPPO and Xiaomi teased under-screen camera technology in 2019, showing off prototype phones with cameras hidden under the display. Xiaomi demonstrated this feature, but an executive dashed hopes seeing the technology anytime soon.
Redmi general manager Lu Weibing explained why mass-production isn’t possible yet. And it has to do with the high pixel density of today’s phones. “Simply put, it is the contradiction between the screen’s PPI and transmittance,” the Xiaomi executive said, according to a machine-translated version of his post. “The current screen PPI is about 400, and at this level, the light transmittance in the camera is very low, which seriously affects the photo effect.” That means we could likely expect dark results when using this camera in conjunction with a pixel-dense screen. Xiaomi also says that lowering the PPI “will cause phenomena such as color patches in the display area.” This suggests that the answer to bringing an under-screen camera to market isn’t as simple as using a lower resolution screen, although it might make for better image quality. “Therefore, with current technical capabilities, it is impossible to find an effective solution that takes into account both display effects and camera effects,” Weibing explains, adding that the technology is “still far from achieving mass production.” Under-screen camera is difficult, and not likely to come from Xiaomi. But it will come from Samsung.
Weibing’s comments, don’t explain the use of a small hole for the camera access nor does it explain the selective use of lower ppi in low use portions of the display, which is how Samsung accomplishes the feat. But it does explain that Samsung Display is reluctant to share its technology with some of its Chinese customers.
Xiaomi Finding it Difficult to Get Under-the-Display Technology
February 02, 2020
Samsung Display demonstrated several versions of under-the -display technology at CES including a version that was completely hidden scheduled for release in 2021. OPPO and Xiaomi teased under-screen camera technology in 2019, showing off prototype phones with cameras hidden under the display. Xiaomi demonstrated this feature, but an executive dashed hopes seeing the technology anytime soon.
Redmi general manager Lu Weibing explained why mass-production isn’t possible yet. And it has to do with the high pixel density of today’s phones. “Simply put, it is the contradiction between the screen’s PPI and transmittance,” the Xiaomi executive said, according to a machine-translated version of his post. “The current screen PPI is about 400, and at this level, the light transmittance in the camera is very low, which seriously affects the photo effect.” That means we could likely expect dark results when using this camera in conjunction with a pixel-dense screen. Xiaomi also says that lowering the PPI “will cause phenomena such as color patches in the display area.” This suggests that the answer to bringing an under-screen camera to market isn’t as simple as using a lower resolution screen, although it might make for better image quality. “Therefore, with current technical capabilities, it is impossible to find an effective solution that takes into account both display effects and camera effects,” Weibing explains, adding that the technology is “still far from achieving mass production.” Under-screen camera is difficult, and not likely to come from Xiaomi. But it will come from Samsung.
Weibing’s comments, don’t explain the use of a small hole for the camera access nor does it explain the selective use of lower ppi in low use portions of the display, which is how Samsung accomplishes the feat. But it does explain that Samsung Display is reluctant to share its technology with some of its Chinese customers.
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