United States Patent Number: 5,705,888, January 6, 1998, pages 1-8.
NOTE: At the time of publication, the author David Braun was not yet affiliated with Cal Poly.
An electroluminescent (EL) device is (1) composed of polymeric LEDs comprising an active layer (7) of a conjugated polymer and a transparent polymeric electrode layer (5) having electroconductive areas (51) as electrodes. Like the active layer (7), the electrode layer (5) can be manufactured in a simple manner by spin coating. The electrode layer (5) is structured into conductive electrodes (51) by exposure to UV light. The electrodes (9) and (51) jointly form a matrix of LEDs for a display. When a flexible substrate (3) is used, a very bendable EL device is obtained.
Electrical and Computer Engineering
Also available from the United States Patent and Trademark Office. Website: http://www.uspto.gov.