Abstract: A method for controlling the deposition of an organic layer in making an organic light-emitting device includes depositing at a deposition zone organic material forming a layer of the organic light-emitting device and providing a movable sensor which, when moved into the deposition zone and is being coated during the depositing step, provides a signal representing the deposition rate and thickness of the organic material forming the layer. The method also includes controlling the deposition of the organic material in response to the signal to control the deposition rate and thickness of the deposited organic material forming the layer, moving the movable sensor from the deposition zone to a cleaning position, and removing organic material from the movable sensor to permit reuse of the movable sensor.
Type:
Application
Filed:
April 20, 2001
Publication date:
December 12, 2002
Applicant:
Eastman Kodak Company
Inventors:
Michael A. Marcus, Anna L. Hrycin, Steven A. Van Slyke
Abstract: A method for controlling the deposition of an organic layer in making an organic light-emitting device includes depositing at a deposition zone organic material forming a layer of the organic light-emitting device and providing a movable sensor which, when moved into the deposition zone and is being coated during the depositing step, provides a signal representing the deposition rate and thickness of the organic material forming the layer. The method also includes controlling the deposition of the organic material in response to the signal to control the deposition rate and thickness of the deposited organic material forming the layer, moving the movable sensor from the deposition zone to a cleaning position, and removing organic material from the movable sensor to permit reuse of the movable sensor.
Type:
Grant
Filed:
April 20, 2001
Date of Patent:
May 6, 2003
Assignee:
Eastman Kodak Company
Inventors:
Michael A. Marcus, Anna L. Hrycin, Steven A. Van Slyke