Figure 6.
(a) Thermochromic powder. (b) Liquidlike composite formed by mixing powder with PDMS gel. (c) Thin film of thermochromic composite. (d) Schematic illustrations of the display structure. The logo-patterned conductive wirings are shaped from silver microparticle-PDMS composite by using soft lithography. The conductive wire pattern is embedded into the thermochromic sheet. The insets show the top and bottom views of the fabricated device (Ref. 57).