Patent ID: 7016095

Claim:
A method for manufacturing a matrix color optical interference display unit disposed on a substrate, the method comprising: forming a first electrode on the substrate; forming a sacrificial layer on the first electrode; forming at least four openings in the sacrificial layer and the first electrode to define positions of a first optical interference display unit, a second optical interference display unit, and a third optical interference display unit; forming a post comprising a support in each of the openings and at least an arm on the sacrificial layer; forming at least one first electrode layer on the sacrificial layer, the arms and the posts, wherein the first electrode layer forms a second electrode of the first optical interference display unit; forming at least one second electrode layer on the first electrode layer located only on the second optical interference display unit and the third optical interference display unit, wherein the first and the second electrode layers form a third electrode of the second optical interference display unit; forming at least one third electrode layer on the second electrode layer located only on the third optical interference display unit, wherein the first, the second and the third electrode layers form a fourth electrode of the third optical interference display unit; performing a thermal process to make the second, the third and the fourth electrodes able to generate displacement due to stress, thereby various distances between the first electrode and the second, the third and the fourth electrodes are formed; and removing the sacrificial layer.