Electronic display apparatus with scrolling function

Claim 1

An electronic display device with scrolling function, the device comprising: input means for inputting character information, numerical information and commands; data buffer means for storing said character and numerical information in a readable form; write/read means for outputting information from the input means to the data buffer means and for reading information from the data buffer means; display buffer means for temporarily storing information output from the write/read means, wherein said display buffer means includes a segment character display storage means for storing character information in a form for display on a segment character display and a dot matrix display storage means for storing numerical information in a form for display on a dot matrix display; display means for displaying said character and numerical information, stored in said display buffer means, said display means including a dot matrix display portion and a segment display portion; display control means for selectively converting the information stored in said display buffer means into information for display on the dot matrix display portion or segment display portion and outputting said converted information to the appropriate display portion. decision means for outputting a signal when numerical information stored in the dot matrix display storage means exceeds a predetermined character number, and for outputting a signal when display change-over instruction is received from said input means, respectively; and conversion means, responsive to said decision means, for converting the numerical information stored in said segment character display storage means into a format for display on said dot matrix display portion, and at the same time, converting the numerical information exceeding said predetermined character number from the buffer display means for display on the segment display portion.