Compositions – Radioactive compositions – Nuclear reactor fuel
Patent
1979-11-19
1982-09-07
Gron, Teddy S.
Compositions
Radioactive compositions
Nuclear reactor fuel
252408, G02F 117
Patent
active
043480772
ABSTRACT:
The present invention relates to a display device utilizing an electrochemically reversible coloring reaction and, more specifically, to an electrochromic display device (referred to as ECD hereinafter) which makes it possible to carry out a stable display to appearing-disappearing performance using an iron compound insoluble to an electrolyte as an electrochemical reactant to a counter electrode. In order to operate an ECD stably, it is necessary to stabilize the electro-potential applied to the counter electrode. The ECD of the invention is characterized by using iron berlinate or derivatives thereof as a potential stabilizing material of the counter electrode, and the ECD is constructed with a display electrode and a counter electrode provided with the said compound as a reactive component thereon, thereby making it possible to maintain a stably display function. Furthermore the invention relates also to an ECD using a solid thin film of an electrochromic substance as a display electrode, in which lithium fluoborate is used as a supporting substance of the electrolyte and water is added to the electrolyte in a concentration of 0.1 to 2 Mol/l, thereby improving the temperature performance and response speed of the ECD without affecting its working life thereof.
REFERENCES:
patent: 3451741 (1969-06-01), Manos
patent: 3712709 (1973-01-01), Kenworthy
patent: 3806229 (1974-04-01), Schoot et al.
patent: 3839857 (1979-10-01), Berets et al.
patent: 3930717 (1979-01-01), McDermott et al.
patent: 3951521 (1976-04-01), Findl
patent: 4018508 (1977-04-01), McDermott et al.
patent: 4073570 (1978-02-01), Korinek
patent: 4116535 (1978-09-01), Ponjee et al.
Kondo Shigeo
Yoshiike Nobuyuki
Gron Teddy S.
Matsushita Electric - Industrial Co., Ltd.
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