| 摘要 |
<p>An electrochromic display having an image including fine detail may be produced by applying working (14) and counter (14') electrodes on one side of a nonconductive substrate (12), applying conductive coatings (16) on the electrodes, and printing an image (20) over one or both of the conductive coatings covering the electrodes using an ink containing an electrochromic substance. The electrodes (including the area covered by the electrochromic substance) are then bridged with an ionically conductive coating (28). In a preferred arrangement, the two conductive coatings (16) may merge into a single coating bridging a gap (22) between the electrodes. Prussian blue can be used as a pigment in the electrochromic ink. Complementary electrochromic materials may be printed over both electrodes, more than one electrochromic material may be printed on a single electrode, and various pigments (including fluorescent pigments) may be mixed with the electrochromic materials to obtain various special effects.</p> |
