Thomas J Milich

US Patent:

46225498, Nov 11, 1986

Filed:

Jun 29, 1983

Appl. No.:

6/509001

Inventors:

Tony N. Criscimagna - Woodstock NY
Harry S. Hoffman - Saugerties NY
Thomas J. Milich - New Windsor NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G09G 326

US Classification:

340805

Abstract:

Operation of an AC plasma display panel requires the three control operations of write, erase, and sustain. Sustain, write and erase signals are stored in a plurality of sections in a storage device and the sections are selectively accessed according to the specific operation to be provided to the plasma panel display. The control signals stored within a given sequence are selected so that no dimming occurs during write and erase operations. A brightness control is provided to modulate the average repetition rate of signals applied to the plasma display panel. In this manner, a plurality of flicker-free brightness levels may be chosen.