The plasma panel has potential as a computer output display device; and when perfected, may even be suitable for commercial television. In its normal operation the plasma panel exhibits a bistable range in which the cells can exist in either of two stable modes. The "on" state results from a discharge every cycle, and the "off" state corresponds to no discharge. Multiple stable states with corresponding multiple intensities--that is, shades of gray--were sought in this investigation. Application of this technology is related most directly to displays where the inherent memory of the multiple states is desirable. (Author/MF)