1977-08-17
1980-04-22
Davie, James W.
350353, G02F 117
Patent
active
041992296
ABSTRACT:
A layer of a solid state compound including at least one compound selected from the group of fluorine and lead which compound prominently changes its light absorption factor when an electric field is applied thereto, thereby becoming black during the application of the electric field. Therefore, the solid state compound layer provided with at least an electrode on one face thereof can be used as a display device or a recorder.
REFERENCES:
patent: 3630603 (1971-12-01), Letter
patent: 3649116 (1972-03-01), Hall
Hayashi Yoshiaki
Imai Akihiro
Yamashita Akio
Davie James W.
Matsushita Electric - Industrial Co., Ltd.
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