An electro-phoretic display and a brightness adjusting method thereof are provided. Then, the display panel is set by RW commands. The hydrophilic coating is deposited on the unipolar plates prior to the unipolar plates being assembled into the flow field plate so that line of site deposition processes can be used to coat the flow field channels in the tunnel region. A first target to which the object was sent is determined. 5 degrees, in the direction of compressive stress and is shifted after heat treatment by a maximum of 1 degree, preferably by 0.