Communications: electrical – Systems – With specific power supply
Patent
1975-06-06
1977-08-23
Trafton, David L.
Communications: electrical
Systems
With specific power supply
340324M, 350160LC, G02F 113
Patent
active
040443469
ABSTRACT:
A multifigured or matrix-type liquid crystal display is driven by an applied voltage selected so that the effective value of the voltage applied to a display segment identified visually may have the maximum ratio to the effective value of the voltage applied to a display segment not identified visually. The multi-figured display can be driven as an X-Y matrix by coupling together the corresponding segment electrodes of each figure and sequentially actuating the common electrode of each figure. In a matrix-type liquid crystal display, the respective row electrodes of each digit would be coupled together, and the column electrodes sequentially actuated, to likewise define an X-Y matrix. In such an X-Y matrix-type liquid crystal display having N electrodes sequentially actuated, the applied voltage may be predetermined so that the voltage applied across a region of the liquid crystal material between said electrodes to be rendered visually identifiable may be (.sqroot.N + 1) times as high as the voltage applied to a region of the liquid crystal material between said electrodes which is not rendered visually identifiable.
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Akahane Masao
Hosokawa Minoru
Kubota Kanemitsu
Kabushiki Kaisha Suwa Seikosha
Trafton David L.
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