An electronic device, characterized in that the electronic device comprises: an iris camera; and an organic light-emitting diode, OLED, display screen, in which an infrared OLED is integrated, wherein the infrared OLED is configured to emit infrared light, and the iris camera is configured to receive infrared light reflected by an iris and to generate an iris image; wherein the OLED display screen includes multiple pixel cells for displaying image information, wherein each of the pixel cells includes a red OLED, a blue OLED, and a green OLED; and the infrared OLED is integrated at edge positions of the OLED display screen; wherein the red OLED, the green OLED and the blue OLED are distributed in a Bayer array; further comprising a processor and a memory, wherein the electronic device is a full-screen display electronic device; wherein when no image is displayed on the OLED display screen, the iris camera is configured to receive infrared light which is reflected by an iris and penetrates through the OLED display screen, and obtain an initial image; wherein the initial image contains iris image information corresponding to an iris image and component information of the OLED display screen; the memory is configured to store prestored image information captured for the OLED display screen when no image is displayed on the OLED display screen, wherein the prestored image information is the component information of the OLED display screen; and the processor is configured to remove the component information of the OLED display screen from the initial image according to the prestored image information stored in the memory, and obtain the iris image information to acquire the iris image; and wherein when an image is displayed on the OLED display screen, the iris camera is configured to receive infrared light which is reflected by an iris and penetrates through the OLED display screen, and obtain an initial image; wherein the initial image contains iris image information corresponding to an iris image, component information of the OLED display screen and display image information of the image; the memory is configured to store prestored image information captured for the OLED display screen when no image is displayed on the OLED display screen, wherein the prestored image information is the component information of the OLED display screen; and the processor is configured to acquire the display image information in real time, remove the display image information from the initial image, remove the component information from the initial image according to the prestored image information stored in the memory, and obtain the iris image information to acquire the iris image. an iris camera; and an organic light-emitting diode, OLED, display screen, in which an infrared OLED is integrated, wherein the infrared OLED is configured to emit infrared light, and the iris camera is configured to receive infrared light reflected by an iris and to generate an iris image; wherein the OLED display screen includes multiple pixel cells for displaying image information, wherein each of the pixel cells includes a red OLED, a blue OLED, and a green OLED; and the infrared OLED is integrated at edge positions of the OLED display screen; wherein the red OLED, the green OLED and the blue OLED are distributed in a Bayer array; further comprising a processor and a memory, wherein the electronic device is a full-screen display electronic device; wherein when no image is displayed on the OLED display screen, the iris camera is configured to receive infrared light which is reflected by an iris and penetrates through the OLED display screen, and obtain an initial image; wherein the initial image contains iris image information corresponding to an iris image and component information of the OLED display screen; the memory is configured to store prestored image information captured for the OLED display screen when no image is displayed on the OLED display screen, wherein the prestored image information is the component information of the OLED display screen; and the processor is configured to remove the component information of the OLED display screen from the initial image according to the prestored image information stored in the memory, and obtain the iris image information to acquire the iris image; and wherein when an image is displayed on the OLED display screen, the iris camera is configured to receive infrared light which is reflected by an iris and penetrates through the OLED display screen, and obtain an initial image; wherein the initial image contains iris image information corresponding to an iris image, component information of the OLED display screen and display image information of the image; the memory is configured to store prestored image information captured for the OLED display screen when no image is displayed on the OLED display screen, wherein the prestored image information is the component information of the OLED display screen; and the processor is configured to acquire the display image information in real time, remove the display image information from the initial image, remove the component information from the initial image according to the prestored image information stored in the memory, and obtain the iris image information to acquire the iris image.