| 摘要 |
A driving circuit for fluorescent display device capable of displaying letters, figures, symbols or the like in multiple luminous colors with a constant brightness is disclosed. The driving circuit comprises a voltage controlling means for controlling an output voltage in response to inputs to be displayed in the device, a pulse generating means for generating a pulse signal having the peak value which is regulated by the voltage level of the voltage controlling means and having the pulse width which is regulated by the input to be displayed in the device, and a driving means for driving the fluorescent display device in response to the output of the pulse generating means.
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