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US 8,300,296 B2Granted
Electrochromic formulation and organic electrochromic switchable electronic component
AssigneeSiemens Aktiengesellschaft
InventorsAndreas Kanitz, Wolfgang Roth
Life of this patent
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Abstract
An electrochemical formulation has an active dye. An organic electrochromic switchable electronic component of high switching speed is made using the dye. The component is used to make electrochromic displays. The dye has substituents limiting or preventing a π-merisation of the aromatic moieties.
Claims4
An electrochromic formulation which comprises at least one electrochromically active dye which has the following structure:
- where n is an index representing the degree of polymerization.
An organic electrochromic electronic component comprising:
- at least two electrodes;
- and
- an organic active layer sandwiched between the electrodes, the organic active layer comprising an electrochromically active dye which has the following structure:
- where n is an index representing the degree of polymerization.
1 more element
Dependencies are inferred from the claim text.