High potential output stage for forming control circuit of e.g. plasma display panel, has voltage riser and control circuit with transistors that conduct when receiving input signal to operate output circuit`s transistor in ohmic mode

摘要

The stage has a voltage riser (10) and a control circuit (20) supplied with a high DC potential (VPP-DC). The high DC potential is always greater than a conduction threshold of 10 volts of transistors (T11, T13, T21) of the riser and circuit, so that the transistors conduct as they receive an input logic signal on their control gates to operate a transistor (T31) of an output circuit (30) always in an ohmic conduction mode. The output stage has synchronization units to synchronize the input logic signal on the variations of high AC potential (VPP-AC). An independent claim is also included for a plasma display or flat panel display type display device comprising a high potential output stage.