display matrix liquid crystal

A.MATRICE OF LIQUID CRYSTAL DISPLAY. B.A WITH ELEMENTS IN DISPLAY C XY MATRIX WITH COLUMNS AND LINES C L LINES BEING SATISFIED IN GROUP 2 3 ETC. LINES AND SWITCHING ELEMENTS M COMMON IS CONNECTED TO OUTPUT H1 ... HM GENERATOR OF SCAN PULSE 2. C.L'INVENTION APPLY TO DISPLAY LIQUID CRYSTALS.