Electrochromic display
AssigneeBayer HealthCare LLC
InventorsHorst Berneth, Uwe Claussen, Ralf Neigl, Wolfgang Jacobsen
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Abstract
The invention describes an electrochromic display element in the form of an electrically dimmable mirror, an optical filter having an electrically alterable transparency or a display element which contains an electrochromic liquid between two electrode sheets, where at least one of the electrode sheets is transparent and has a transparent, electrically conductive layer and the transparent electrode sheet has a pattern of strips or grid made of a material having metallic conductivity in order to produce a uniform coloration of the electrochromic liquid.
Claims13
An electrochromic display element which comprises:
- 1) a first electrode comprising:
- a first substrate, made of transparent material in the form of a sheet having a smooth flat surface;
- a first electrically conductive layer, located on said flat surface of said first substrate and being continuous and transparent;
- and
- a periodic or aperiodic pattern of strips or grid made of metallic conductive material located outside of said first substrate, and above or below said first electrically conductive layer and in continuous electrical contact with the same;
- 2) a second electrode comprising:
- a second substrate, made of material which is the same as or different from that of said first substrate, in the form of a sheet having a smooth flat surface;
- a second electrically conductive layer, located on said flat surface of said second substrate and being continuous and optionally transparent;
- and
- optionally, a periodic or aperiodic pattern of strips or grid made of metallic conductive material located outside of said second substrate, and above or below said second electrically conductive layer and in continuous electrical contact with it;
- 3) an electrochromic medium;
- and
- 4) means for maintaining the electrically conductive layers of said first and second electrodes in spaced-apart proximity facing each other, and for holding said electrochromic medium between said first and second electrodes.
Dependencies are inferred from the claim text.