Plasma addressed electro-optical display

Abstract

The plasma addressed electro-optical display includes a panel having a plasma cell and a liquid crystal cell joined to each other with a dielectric sheet interposed in between. While the plasma cell has display channels arranged thereon in rows, the liquid crystal panel has signal electrodes arranged thereon in columns, which define pixels at the intersections with the display channels to thereby form an image. A scanning circuit is connected to the display channels and sequentially drives the display channels to discharge over the image and select pixels in each row through the dielectric sheet. A signal circuit is connected to the signal electrodes and drives the signal electrodes in synchronism with the driving for discharge and in accordance with one image of picture data, and, thereby, it writes signal voltages into the selected pixels. A calculating circuit, in accordance with externally input picture data, calculates effective potential differences occurring between adjoining signal electrodes in each row and accumulates the results over the image. A compensating circuit, in accordance with the results of accumulation, compensates for the signal voltages to be applied to the respective signal electrodes to thereby reduce the crosstalk caused by potential differences between adjoining signal electrodes.