Unlike earlier approaches that reduce pixel density, Oppo is using smaller pixels to maintain the same 400-PPI sharpness as the rest of the OLED panel.
Under-display camera technology is not very new and has been prototyped and even released in public like the ZTE Axon 20 5G last year. But there was some quality error with the selfie camera, and also, there is a clear difference in screen over the camera.
To solve this issue, Oppo has announced its second-generation under-display camera technology that allows for the selfie camera to be under the display and function ideally without compromising the integrity of the screen. Unlike earlier approaches that reduce pixel density in the portion of the screen that covers the camera, Oppo is using smaller pixels to maintain the same 400-PPI sharpness as the rest of the OLED panel. The technology works together with “precise algorithmic compensation technology” to offer the brightness of the entire screen to be controlled with a deviation of about 2%.
Oppo has also replaced traditional screen wiring with a new transparent wiring material, allowing more light. The panel is developed jointly with BOE, one of the major display manufacturers in China. According to Oppo, users should not notice any visual difference between the under-screen camera area and the rest of the screen in everyday usage.
The company also demonstrated one sample image with the new under-display selfie camera and a screenshot of the screen running a full screen e-reader app which would be the worst-case scenario for earlier under-display cameras due to the white background and sharp text.
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