| 摘要 |
A handheld programmable sign including a sign portion and a hand-grip portion mounted transverse to said sign portion and a keyboard/microprocessor mounted in the hand-grip portion for receiving input data and transmitting the input data to the microprocessor,. At least two display screen units are mounted as representing the sign portion including display screens for displaying the input data to observers, the screen units being foldable relative to one another between an operative open planar mode and an inoperative closed mode wherein the two screens are in parallel facing relationship. In the open mode the display screen units present input data electrically contained therein to an observer. In the inoperative closed mode the first and second display screen units are in a fully aligned parallel folded relationship and no data is transferred to an observer. A computer microprocessor/memory unit and a serial port wired thereto are optionally positioned in the hand-held portion. A computer microprocessor/memory unit and a serial port wired thereto are optionally positioned in the hand-held portion. A three-display screen unit having a center screen unit with two display screen units rotatably attached to the center display screen unit is optional.
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