Patent ID: 6344840
Filing Date: 2002-02-05
Classification: G02F,G09G

Abstract:
A plasma-addressed liquid crystal display apparatus comprising: a liquid crystal device including a liquid crystal cell structure and a plasma cell structure in a stacked configuration; whereinthe liquid crystal cell structure comprises a first transparent substrate having thereon transparent electrode stripes and an alignment film, a dielectric sheet having thereon an alignment film disposed opposite to the alignment film on the first transparent substrate, and a liquid crystal disposed between the alignment films, and the plasma cell structure comprises a second transparent substrate having thereon pluralities of cathode stripes and anode stripes disposed alternately with a prescribed spacing therebetween, and stripes of partitions formed along the anode stripes; the plasma cell structure being stacked onto the dielectric sheet of the liquid crystal cell structure via the partitions so as to form plasma chambers filled with an ionizable gas between the partitions and so that the cathode stripes and anode stripes intersect the transparent electrode stripes; the display apparatus further comprising: data signal application means for applying data signals to transparent electrode stripes, anode potential application means for applying an anode potential to the anode stripes, and cathode potential application means for applying a cathode potential capable of generating plasma in an associated plasma channel to the cathode stripes, wherein the data signal application means applies a data signal having a pulse width which lasts for a period d after termination of average plasma life &tgr;p in the plasma channels in one horizontal scanning period 1H, satisfying a relationship of: 0.5(1Hâˆ’&tgr;p)&lE;d&lE;(1Hâˆ’&tgr;p).