作者: M. Stevens , L. Ozawa , G. Ban , H. Hersh
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摘要: The brightness, contrast, and sharpness of the picture on a color television tube screen is great importance to consumer major interest designer. Chromacolor has yielded substantial improvement both in brightness (to over 100 ft-L) contrast (by absorbing incident ambient light) due its negative guard-band, black surround construction. depends largely diameter electron beam upon phosphor dots. An can be brought about by reduction size beam; however, such will result an increase current density. This brings up question concerning cathodoluminescence1 these phosphors: emission intensity linear with respect density region practical currents?