Chen Cheng LeeFollow


Under-display cameras (UDCs) beneath organic light-emitting diode (OLED) displays can suffer from poor image quality due to the diffraction of light caused by periodic pixel structures of the OLED display. This disclosure describes the use of techniques inspired by confocal microscopy to reduce the diffraction of light passing through an OLED display to improve the quality of images captured by an under-display camera. Diffracted or scattered light, which tends to blur the captured image, is blocked by placing an array of pinholes or a panel of louvers in front of the image sensor. Effective light is separated from diffracted light to enable the UDC to produce sharp images. The UDC is rendered highly sensitive to variations in the object distance and the chief ray angle (CRA).

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.