Abstract: A system for the multiplex addressing of a colloidal light valve array. An array of individual sites or cells is made using a colloidal light valve (CLV) material which has a light transmission curve that is a function of the frequency of the applied potential across the site or cell. The array is generally defined by rows and columns of electrical conductors. The intersections of the rows and column define sites or are at individual cells. Any one site may be uniquely addressed by supplying this site with a high frequency electrical signal and a low frequency electrical signal during one time period and with two low frequency electrical signals during a second time period. Non-selected or non-addressed sites are supplied with combinations of high frequency and low frequency electrical signals during the two time periods to force the average light transmission valve of these nonselected sites to be the compliment of the average light transmission of the addressed site.

Abstract: A multiphase high voltage, high power, solid state generator having a pair of 180.degree. out of phase periodic voltage waveforms, undistorted by variation in nonlinear loading, primarily for use as a sustaining voltage source for conductor arrays on a gas discharge display panel. The output of a low voltage oscillator is fed to a phase splitter driver circuit which incorporates complementary emitter follower transistors to provide push-pull output power for each phase split voltage. At least a pair of back-to-back complementary power amplifiers having a common ground or reference point are driven by the 180.degree. out of phase voltages, respectively, of the phase splitter driver circuit. Distortion due to nonlinear loading is reduced by several feedback loops in each complementary amplifier of the back to back pair. Consult the specification for further details and features.