Liquid crystal display device

Details Liquid crystal display device Liquid crystal display device

1991-01-07

1992-10-13

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340730, 340765, 359 84, 359 87, G09G 336, G09G 318

Patent

active

051554763

ABSTRACT:
A liquid crystal display device in which a display area, a connecting area and a remaining area are set separately in ON (display) and OFF (non-display) states. Accordingly, even in the liquid crystal display device wherein a positive display (normally white display) is made, a negative display (normally black display) can be effected by switching the ON and OFF states. Similarly, in the liquid crystal display device wherein the negative display is made, it can be switched to the positive display. Since the ON and OFF states of a liquid crystal layer corresponding to each of the three color filters of red, green and blue can be set optionally, eight color displays are possible by combination of the three colors. The segment side and common side transparent electrodes are formed respectively in two divisions, so that the transparent electrode can be formed by a conventional patterning technique without using the precise patterning technique.

REFERENCES:
patent: 4137524 (1979-01-01), Chen et al.
patent: 4277786 (1981-07-01), Waldron
patent: 4514920 (1985-05-01), Shafrir et al.
patent: 4688031 (1987-08-01), Haggerty
patent: 4824212 (1989-04-01), Taniguchi
patent: 4957350 (1990-09-01), Ito et al.

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