Here's introducing the Santek EZ Sign, an E Ink display module featuring a 4.2-inch e-paper panel capable of displaying three colors - red, black, and white. This makes the 400 x 300 resolution display well suited to show texts or images that are as eye-catching as it is mesmerizing. As TechBang stated, the display module comes with an integrated battery rated at 230 mAh though … [Read more...] about Here is a new 4.2-inch Tri-Color e-Paper Display