Patent ID: 7605968
Filing Date: 2009-10-20
Classification: G02F

Abstract:
1. A display medium comprising: a pair of substrates facing to be in parallel with each other, at least one of the pair of substrates constituting a display surface; a spacer disposed between the pair of substrates to form a fluid chamber together with the pair of substrates, the fluid chamber encapsulating a fluid material and having a polygonal shape in a cross section taken parallel to the display surface, the polygonal shape having two acute corners each having an angle greater than 0° and no greater than 75°, wherein the fluid material flows in accordance with electric fields generated between the pair of substrates to display images on the display surface; an injection port through which the fluid material is injected into the fluid chamber; and an exhaust port through which air in the fluid chamber is exhausted outside the fluid chamber, wherein a distance between one of the injection port and the exhaust port and one of the two acute corners as viewed from a direction orthogonal to the substrate is equal to or smaller than 5 mm.