Electrochromic display device and electrodeposition-type display device
US7312914B2 · kind B2 · utility
10Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Sep 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/164
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Between each transparent pixel electrode driven by TFT as a drive device and a common electrode, a polymer layer located in contact with the transparent pixel electrode and electrically active to change in color by electrochemical oxidization or reduction and a polymeric solid electrolytic layer located in contact with the polymer layer and containing a coloring agent are interposed. Since electrochemical oxidization or reduction brings about a color change, the contrast and the black concentration can be enhanced, and bronzing after long-time use does not occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.