| 摘要 |
<p>Drive circuits for a flat panel display using a matrix of DC responsive phosphor dots are disclosed. Enabled row conductors receive a pulse of DC potential equal to +HV, whereas disabled row conductors receive +HV/2. Enabled column conductors receive zero potential, whereas disabled column conductors receive + HV/2. HV is in the range 90 to 140V. This allows semiconductor integrated circuit display drivers to be used in conjunction with the column conductors. Discrete transistor complementarypair drivers are used for the row conductors. Scanning and character generation functions are achieved by the use of semiconductor integrated circuits. A pulse-width brightness control operates by selection of one of several logical combinations of the outputs of a counter. Two or four column driver circuits are provided to simplify high density connection problems and a divider circuit causes the column driver circuits to be addressed in sequence. Physical connection to the column drivers is made alternately from the top and bottom of the matrix.</p> |
