Active matrix structure for display screen and screen comprising one such matrix

An active matrix structure for a display screen, formed on a transparent substrate, comprising:

• pixel electrodes arranged in rows and columns;
• a switching device associated with each electrode, and corresponding row selection lines, each selection line being disposed between two rows of successive pixel electrodes, said selection lines and electrode pixels being realized on a different level of a structure;
• under each row of pixel electrodes, a bus made of conducting and transparent material, substantially with a same width as said row, produced on a level of the structure separated from a level of the selection lines and from a level of the pixel electrodes by at least one insulation layer and connected to the selection line of a previous row of pixel electrodes, said bus forming a storage capacitor with each pixel electrode of said row;
• and
• a channel level of the transistors is situated between a level of the storage capacitor bus and that of the row selection lines forming gate of the transistors.