Liquid crystal driving system

Claim 1

A display device for a camera, comprising: (a) a first liquid crystal display unit having a common electrode and segment electrodes for displaying letters or figures or the like in a non-transmissive state by shapes of the segment electrodes with a potential difference generated between said common electrode and said segment electrodes, said first liquid crystal display unit being used for monitoring; (b) a second liquid crystal display unit having a common electrode and segment electrodes for displaying letters or figures or the like in a transmissive state by shapes of the segment electrodes without generating a potential difference between said common electrode and said segment electrodes, wherein said segment electrodes of said second liquid crystal display unit have a region with an almost same shape as that of said segment electrodes of the first liquid crystal display unit and said second liquid crystal display unit is used for imprinting data on a film; (c) a display circuit for driving said first and second liquid crystal display units, said display circuit having a driver being connected to said segment electrodes having said regions with the same shape of both said first and second liquid crystal display units so as to supply same segment signals thereto, and said driver being connected to said common electrodes of both said liquid crystal display units so as to supply common signals having phases inversed between the two common electrodes; and (d) a light source for imprinting data, positioned near said second liquid crystal unit.