Semiconductor display apparatus

An analog apparatus for displaying an electrical signal in which the brightness of each part of the display is proportional to the amplitude of the signal comprising a matrix of semiconductor parts, arranged in lines and columns for memorization and amplification of said analog electrical signal;

• two command grids joined to said matrix, having electrodes parallel respectively to said lines and to said columns, and in contact with the said semiconductor parts;
• actuation means connected to the first of said grid, which has its electrodes parallel to the said matrix;
• memory means for receiving said electrical signal, connected in parallel to the electrodes of the second of said grids and for transferring its contents to an activated line of said matrix, the semiconductor parts of the said activated line would then each store a second analog electrical signal proportional to the amplitude of said analog electrical signal and for controlling a flow of current therethrough in accordance with said store signal;
• display layer means adjacent one extremity of said semiconductor parts for displaying the electrical signals stored by the said semiconductor parts when a current flows through said parts and;
• means for applying a potential across the display layer and the extremities of each of the semiconductor parts, whereby causing a current flowing through each semiconductor part and the adjacent display layer to be proportional to the second electrical signal stored in the part, and the intensity of the display is proportional to that current.