发明授权
US3976994A Liquid crystal display system 失效
液晶显示系统

Liquid crystal display system
摘要:
An improvement on a display system which displays multi-digit numeral information on a time-shared basis in response to application of bipolarity alternating voltage to liquid crystal display units. Each of the liquid crystal display units has a common electrode actuated by one of sequentially phase-shifted timing signals and a predetermined number of segment electrodes actuated by segment signals of which combinations are representative of the multi-digit numeral information to be displayed. Particularly, in the present system, visual display is provided over successive repetition of first and second display cycles in a manner that timing selection for the respective common electrodes is effected with one polarity or phase during the first display cycle and subsequently timing selection for the same is effected with the opposite polarity or phase during the second display cycle. This provides a considerable improvement in life time and immunity from blinking information caused due to the decreasing of display frequency.
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