The invention discloses a display screen, an electronic device and a display screen manufacturing method. The display screen includes an organic light emitting layer, a TFT circuit layer, and an infrared sensor. The TFT circuit layer is disposed under the organic light emitting layer and is configured to drive the organic light emitting layer to emit light for display. The infrared sensor is disposed within the TFT circuit layer and is configured to emit and/or receive infrared light through the organic light emitting layer. The invention also provides an electronic device and a method of manufacturing the display screen. According to the display screen, the electronic device and the display screen manufacturing method of the present invention, the infrared sensor can be disposed in the TFT circuit layer in an all-screen case such that a screen flicker phenomenon caused by disposing the infrared sensor under the screen can be avoided.