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High‐contrast driving method for advanced CEL structure with magnesium oxide single‐crystal powder in ACPDP
Author(s) -
Hashimoto Koji,
Itakura Shunsuke,
Sakata Kazuaki,
Tokunaga Tsutomu,
Ishizuka Mitsuhiro,
Iwaoka Shigeru,
Saegusa Nobuhiko
Publication year - 2009
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid17.2.107
Subject(s) - contrast ratio , materials science , electrode , luminance , cathode , contrast (vision) , plasma display , magnesium , oxide , single crystal , optoelectronics , reset (finance) , optics , electrical engineering , crystallography , chemistry , metallurgy , physics , economics , financial economics , engineering
— A new driving method for an advanced‐CEL‐structure panel has been developed. Picture qualities have been upgraded. Discharge time lags are drastically shortened by priming electron emission from magnesium oxide (MgO) single‐crystal powder, refered to as a crystal emissive layer (CEL). The advanced‐CEL‐structure panel has CEL material on the surface of not only the surface‐discharge‐electrode side but also on the address‐electrode side. This panel structure enables a stable opposed discharge when the address electrode functions as a cathode. By utilizing the opposed discharges in the reset and LSB‐SF sustain periods, the dark‐room contrast ratio has been drastically increased to over 20,000:1, which is higher than five times that of the conventional method, and the luminance of the least‐significant‐bit sub‐field (LSB‐SF) is as low as 0.1 cd/m 2 , which is one‐fourth that of the conventional method. The high‐picture‐quality PDP TVs refered to as “KURO” that employs these technologies have been introduced into the marketplace.