ELECTROPHORETIC DISPLAY WITH INTEGRATED TOUCH SCREEN

摘要

The present invention relates to an electrophoretic display with an integrated touch screen which uses an infrared optical sensor system. An electrophoretic display, according to one embodiment of the present invention, comprises: a substrate having image gate wires and image signal wires intersecting one another; an image switching TFT electrically connected to the image gate wires and to the image signal wires; a sensing TFT for sensing infrared rays and generating an infrared ray sensing signal; an output switching TFT connected to the sensing TFT, for outputting position information from the infrared ray sensing signal; an infrared filter insulation layer formed on the substrate to cover the sensing TFT, for transmitting only infrared rays; a pixel electrode which is formed on the infrared ray filter insulation layer and which is electrically connected to the image switching TFT; an electrophoretic film which is formed on the pixel electrode, which has a plurality of micro capsules including pigment particles with positive and negative electrical charges; and a common electrode, which is formed on the electrophoretic film.