US Patent No. 10,070,568

METHOD AND APPARATUS FOR USE IN THE MANUFACTURE OF A DISPLAY ELEMENT


Patent No. 10,070,568
Issue Date September 04, 2018
Title Method And Apparatus For Use In The Manufacture Of A Display Element
Inventorship Allan Pourchet, Cork (IE)
William Padraic Henry, Cork (IE)
Patrick Joseph Hughes, Cork (IE)
Assignee Oculus VR, LLC, Menlo Park, CA (US)

Claim of US Patent No. 10,070,568

1. A method for selective pick up of a subset of electronic devices adhered to a handle layer, the method comprising:modifying a level of adhesion between the a subset of electronic devices and the handle layer such that the subset electronic devices has a modified level of adhesion to the handle layer, wherein:
the electronic devices adhered to the handle layer comprise light emitting diode (LED) devices each including a first side adhered to the handle layer and a second side opposite the first,
the electronic devices adhered to the handle layer include the subset of electronic devices and a second subset of electronic devices, and
modifying the level of adhesion between the subset of electronic devices and the handle layer comprises applying a liquid stimulus to the subset of electronic devices and/or corresponding portions of the handle layer where the subset of electronic devices are adhered; and
separating, by a pick up tool (PUT), the subset of electronic devices from the handle layer by applying a force to second sides of the subset of electronic devices that is greater than the modified level of adhesion of the subset of electronic devices to the handle layer.