Described is a device for evaluating biochemical samples (1), with a sample carrier (2), with an image recording means having a light-sensitive layer (3) connected to an evaluation circuit (10), and with a means for illuminating the samples (1). In order to provide simple design conditions, it is proposed that the light-sensitive layer (3), provided on the sample carrier (2), of the image recording means comprise a photoactive layer (4) based on organic semiconductors between two electrode layers (5, 6), of which the electrode layer (6) between the photoactive layer (4) and the samples (1) is translucent at least in certain regions.