Electrochromic display device
专利汇可以提供Electrochromic display device专利检索，专利查询，专利分析的服务。并且PURPOSE: To provide the title device with good characteristics and reliability which is easily fabricated by contacting one side of a thin film of a WO
3 acting substance to a metal electrode and the other side to a proton conductor layer with a thin layer having uniform electronic conduction inhibiting function in-between.
CONSTITUTION: Transparent electrically conductive membrane 2 is attached onto transparent substrate 1 and used as one electrode. Electrochromic material, typically WO
3 thin film 3 is formed on membrane 2 by vacuum deposition, etc. Film 3 is covered with layer 4 preventing electronic conduction and having proton permeability, e.g. a SiO thin film, and proton conductor layer, typically sodium phosphotungstate membrane 5 is formed on layer 4. Finally the other metal electrode 6 is formed by vacuum deposition. By applying negative voltage, protons in the proton conductor are injected into WO
3 through layer 4 to allow film 3 to assume a blue color. This blue color is erased by extracting the protons from the WO
3 with positive voltage applied.
COPYRIGHT: (C)1979,JPO&Japio，下面是Electrochromic display device专利的具体信息内容。
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