Design and performance of digital polysilicon thin-film-transistor circuits on glass

Digital circuits for a fully integrated active matrix liquid-crystal display (LCD) have been designed and fabricated with a low-temperature polysilicon thin-film-transistor process. Measurements of the CMOS inverters, static and dynamic shift registers, line memory latches and output drivers for the display are presented. A comparison is made of the results of measurement and simulation of the circuits using a thin-film-transistor-circuit model developed for the SPICE program. The model was used for the display circuit optimisation. The fully integrated active matrix LCD is also described.