The present invention relates to a photosensitive pixel structure (10). The pixel structure (10) comprises a substrate (15) and at least one photosensitive diode (12, 12', 12"), a stimulating electrode (14), and a resistor (16). The resistor (1 6) is electrically connecting the stimulating electrode (14) and a counter electrode (18). Further, the resistor (16) is at least partially covered by the stimulating electrode (14) and/or the resistor (16) is at least partially covered by the counter electrode (18).