Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Having specific delay in producing output waveform
Patent
1994-06-21
1996-02-06
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Having specific delay in producing output waveform
327270, 345 98, H03H 1126
Patent
active
054898676
ABSTRACT:
In a display data driving IC for driving a matrix display unit, switching current in a plurality of channel driving buffer circuits is suppressed, and when a multi-tone display unit is driven, the tone display quality is improved. The present invention is characterized by comprising a plurality of channel driving buffer circuits to which the individual bit signals of parallel display data are supplied and which, receiving an operation control signal, amplify the individual bit signals or perform voltage level conversion and output the resulting signals, a plurality of control signal supply lines for supplying the operation control signal to each of a plurality of groups into which the driving buffer circuits are divided, a single operation control signal input terminal to which an operation control signal for controlling the operation of the buffer circuits is supplied, and an operation control signal distribution circuit for distributing the operation control signal input to the plurality of control signal supply lines with a specific timing relationship.
Callahan Timothy P.
Kabushiki Kaisha Toshiba
Zweizig Jeffrey
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