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8.3: New Bipolar Ramp Waveform for Enhancing Low‐Gray‐Level Expression in ACPDPs
Author(s) -
Park KiHyung,
Cho KiDuck,
Tae HeungSik,
Chien SungIl
Publication year - 2004
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1825709
Subject(s) - luminance , waveform , gray (unit) , pulse (music) , pulse width modulation , expression (computer science) , gray level , mathematics , computer science , physics , acoustics , voltage , optics , electrical engineering , artificial intelligence , engineering , image (mathematics) , medicine , nuclear medicine , programming language
A new bipolar ramp waveform that can reduce the minimum luminance level considerably is proposed to improve the low gray level expression in AC‐PDP. In the new bipolar ramp waveform, the conventional first subfield with a sustain‐period is replaced by the new first subfield that consists of the first negative square pulse and second positive ramp pulse during a scan‐period. The weak discharge produced by the second positive ramp pulse is used to generate and control the low luminance level stably.