Patent ID: 7741140

Claim:
A method for forming a plurality of optoelectronic devices, the method comprising: providing a substrate having a longitudinal web direction and a cross-web direction, and a plurality of first electrodes disposed on the substrate to define a plurality of longitudinally-extending columns of spaced-apart first electrodes along the longitudinal web direction and a plurality of rows of spaced-apart first electrodes disposed on an angle relative to the cross-web direction; providing a first roller having a first raised spiral coating surface extending around the first roller; first aligning and passing the substrate and the plurality of spaced-apart columns of the first electrodes relative to the first roller to deposit from the first raised spiral coating surface a first plurality of angled spaced-apart coated strips of a first optoelectronic material onto the substrate and onto the plurality of rows of first electrodes; providing a second roller having a second raised spiral coating surface extending around the second roller; second aligning and passing the substrate, the plurality of spaced-apart columns of first electrodes, and the first plurality of angled spaced-apart coated strips of the first optoelectronic material relative to the second roller to deposit from the second raised spiral coating surface a second plurality of angled spaced-apart coated strips of a second optoelectronic material onto the first plurality of angled spaced-apart coated strips of the first optoelectronic material; removing portions of the deposited angled spaced-apart coated strips of the first optoelectronic material and the second optoelectronic material between adjacent longitudinally-extending columns of the first electrodes and to expose portions of the longitudinally-extending columns of first electrode while other portions of the plurality of columns of first electrodes remain coated with the first optoelectronic material and the second optical material; and providing a plurality of spaced-apart second electrodes electrically coupling uncoated portions of the first electrodes with the coated portions disposed on adjacent first electrodes to form a plurality of angled rows of optoelectronic devices connected in series on an angle along the cross-web direction.