Display apparatus

Details Display apparatus Display apparatus

1986-06-03

1989-01-31

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340757, 350392, G02F 103, G09F 900

Patent

active

048019321

ABSTRACT:
A display apparatus using a light-transmitting ceramic having an electrooptic effect. A voltage application head has at least a pair of electrodes which contact the light-transmitting ceramic. The head is driven by a head driver so as to scan across a surface of the light-transmitting ceramic. Electrodes may be formed also on the surface of the light-transmitting ceramic. A bright and dark pattern caused by double refraction in the light-transmitting ceramic is seen through a polarizing plate.

REFERENCES:
patent: 3292171 (1966-12-01), Wilson
patent: 3540209 (1970-11-01), Zutsky et al.
patent: 3591939 (1971-07-01), McGregor
patent: 3614200 (1971-10-01), Taylor
patent: 3901584 (1975-08-01), Yamazaki
patent: 3955191 (1976-05-01), Teraishi
patent: 4158201 (1979-06-01), Smith et al.

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