Patent ID: 7662008

Claim:
A method of forming a display, comprising: a) introducing a first set of display elements, each having a first shape, size or surface characteristic and including a light-modulating element of a first type, onto a substrate; b) inducing relative motion in said display elements in said first set and said substrate sufficient to cause at least a portion of said display elements in said first set to distribute into a first plurality of receptacles on said substrate, said first plurality of receptacles having a first complementary shape, size or surface characteristic that is complementary to said first shape, size or surface characteristic; c) removing display elements in said first set that have not distributed into receptacles in said first plurality of receptacles; d) introducing a second set of display elements, having a second shape, size or surface characteristic and including a light-modulating element of a second type, onto said substrate; e) inducing relative motion in said display elements in said second set and said substrate sufficient to cause at least a portion of said display elements in said second set to distribute into a second plurality of receptacles on said substrate, said second plurality of receptacles having a second complementary shape, size or surface characteristic that is complementary to said second shape, size or surface characteristic; f) removing display elements in said second set that have not distributed into receptacles in said second plurality of receptacles; g) connecting display elements distributed into receptacles on said substrate to said substrate; and h) connecting display elements of said first set to said substrate prior to introducing said second set of display elements onto said substrate.