Abstract: The present invention provides a compound or complex comprising at least two moieties, each moiety being comprised of two or more thiophenes fused directly to each other. Also provided is a method for the production of the compounds of the present invention, which method comprises the coupling of one fused thiophene derivative to another fused thiophene derivative.
Type:
Grant
Filed:
May 30, 2000
Date of Patent:
June 11, 2002
Assignee:
Cambridge Display Technolog Limited
Inventors:
Andrew Bruce Holmes, Stephen Carl Moratti, Xiao-Chang Li, Henning Sirringhaus, Arno Kraft, Michael Mark Murray