Smart display devices are presented. The smart display device includes an electrowetting panel, a photo-detector device, and a panel driving control device, wherein the photo-detector device detects environmental light such that the electrowetting panel is driven by the panel driving control device accordingly. The electrowetting panel has an array of pixels, wherein each pixel includes a first substrate and an opposing second substrate with a polar fluid layer and a non-polar fluid layer interposed between the first and second substrates. A first electrode is disposed on the first substrate. A second electrode is disposed on the second substrate. A hydrophilic bank structure is disposed between the first and the second substrates.