Patent ID: 7457029

Claim:
A manufacturing method for manufacturing a display medium, the display medium comprising a transparent first substrate that constitutes a display surface; a second substrate that opposes an underside surface side of the display surface of the first substrate and separates from the underside surface with a prescribed gap; an electrophoretic layer that is disposed in the prescribed gap and has a liquid in which a plurality of charged particles are dispersed; a first electrode that is disposed between the electrophoretic layer and the first substrate and has a prescribed shape; and a second electrode that is disposed between the electrophoretic layer and the second substrate, wherein voltage applied across the first electrode and the second electrode causes the charged particles in the electrophoretic layer to move toward either an area facing the first electrode or an area facing the second electrode for producing a display corresponding to the shape of the first electrode, the manufacturing method comprising: generating an electrode pattern so that when image data for the text or image to be displayed on the display medium is configured of a plurality of independent regions, the electrode pattern has a plurality of integrally and electrically connected electrodes disposed in correspondence to the plurality of regions; forming the first electrode on either the electrophoretic medium integrally configured of the second substrate, the second electrode, the electrophoretic layer or the first substrate based on electrode pattern generated in the generating step; and bonding the electrophoretic medium to the first substrate after forming the first electrode in the forming step.