SOLID STATE IMAGE PICKUP DEVICE

PURPOSE:To improve the degree of resolution in vertical and horizontal directions by disposing a piezoelectric displacement element on a two-dimensional solid state image pickup element so that the two-dimensional solid state image pickup element can be displaced in two directions in parallel with the light receiving surface. CONSTITUTION:The solid state image pickup elements (NXN picture elements) 1 are equipped with X and Y directional piezoelectric displacement elements 2 and 3 and displaced in two distances (X and Y) in parallel with the light receiving surface with the aid of a drive voltage waveform from a piezoelectric displacement element driver 4. The solid state image pickup element 1 is driven by the solid state image pickup element driver 5. A signal out of the solid state image pickup element 1 enters a scan conversion circuit including frame memories 6 and 7 through an amplifier and an A/D converter, and is displayed on a television set through a D/A converter as a picture made into high resolution. A data selector 8 in the scan conversion circuit alternately uses reading and writing in the frame memories 6 and 7. Thus the degree of resolution can be improved in two directions X and Y without increasing the number of picture elements in a solid state image pickup element and the performance of a solid state image pickup device can be improved.