Patterned organic layers in a full-color organic electroluminescent display array on a thin film transistor array substrate
June 6, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of producing thin film transistor array Organic electroluminescent cell Organic electroluminescent devices having improved power conversion efficiencies Electroluminescent device with organic luminescent medium Electroluminescent device with modified thin film luminescent zone Electroluminescent device with improved cathode Organic electroluminescent device with stabilized cathode Electroluminescent device with improved cathode Electroluminescent device with organic electroluminescent medium Method for fabricating high mobility thin film transistors as integrated drivers for active matrix display InventorApplicationNo. 870475 filed on 06/06/1997US Classes:438/30, Liquid crystal component438/158, Inverted transistor structure438/752GermaniumExaminersPrimary: Niebling, John F.Assistant: Lebentritt, Michael S. Attorney, Agent or FirmInternational ClassesH01L 021/00H01L 021/302 AbstractA method of forming high definition patterned organic layers in a full-color electroluminescent (EL) display array on a two-dimensional thin film transistor (TFT) array substrate is described. The substrate has subpixels with each subpixel having raised surface portions and one recessed surface portion which reveals a bottom electrode. Red, green, and blue color forming organic EL layers are formed in the designated subpixels in accordance with a selected color pattern. The method uses a donor support which is coated with a transferable coating of an organic EL material. The donor support is heated to cause the transfer of the organic EL material onto the designated recessed surface portions of the substrate forming the colored EL medium in the designated subpixels. Optical masks and, alternatively, an aperture mask are used to selectively vapor deposit respective red, green, and blue organic EL media into the designated color EL subpixels. | |
