Patent ID: 8730151

Claim:
An apparatus for writing an image on electronic paper, the apparatus comprising: a writing head having a plurality of pixel electrodes corresponding to a plurality of pixels forming an image, the writing head applying a voltage to select pixel electrodes according to input address signals and data signals; a driver for generating the address and data signals according to a user input and outputting the address and data signals to the writing head; and a controller for generating an image frame signal and outputting the image frame signal to the driver, wherein the writing head comprises pixel electrodes corresponding to all pixels forming the image, and the writing head and the electronic paper are fixed with respect to each other by attaching an entire lower surface of the electronic paper to the writing head while the writing head is writing the image on the electronic paper, and wherein the electronic paper includes an ink layer and a common electrode layer, and the writing head writes the image on the electronic paper by applying an electric field between the common electrode layer of the electronic paper and the pixel electrodes of the writing head.