Organic electroluminescent display with integrated touch-screen
AssigneeEastman Kodak Company
InventorsMIchael J. Siwinski, Kathleen Kilmer, Rodney Feldman, Andre D. Cropper
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Abstract
An organic electroluminescent display, including: a transparent substrate having two faces; light emitting elements of an electroluminescent display formed on one face of the substrate for emitting light through the substrate; and touch sensitive elements of a touch screen formed on the other face of the substrate.
Claims10
An organic electroluminescent display, comprising:
- a) a transparent substrate having two faces;
- b) light emitting elements of an electroluminescent display formed on one face of the substrate for emitting light through the substrate;
- and
- c) touch sensitive elements of a touch screen formed on the other face of the substrate.
A method of manufacturing an organic electroluminescent display, comprising the steps of:
- a) providing a transparent substrate having two opposite faces;
- b) forming conductive layers on opposite faces of the substrate;
- c) patterning the respective conductive layers to form a lower circuit layer for resistive touch sensitive elements and metal interconnections for light emitting elements on opposite sides of the substrate;
- d) forming a hole injection layer over the metal interconnections;
- e) depositing organic light emitters on the hole injection layer;
- f) depositing an electron transport layer on the organic light emitters;
- g) depositing a metal cathode layer on the electron transport layer;
- h) laminating a flexible spacer layer having a matrix of spacer dots onto the lower circuit layer;
- i) attaching a flexible upper circuit layer over the spacer layer;
- and
- j) laminating a flexible top protective layer onto the upper circuit layer.
A method of manufacturing an organic electroluminescent display, comprising the steps of:
- a) providing a transparent substrate having two opposite faces;
- b) forming a pattern of transparent metal oxide on one of the faces of the substrate for a capacitive sensing touch screen, the pattern having corners;
- c) forming metal interconnections on the opposite face of the substrate;
- d) patterning the respective conductive layers to form a lower circuit layer for touch sensitive elements and metal interconnections for light emitting elements on opposite sides of the substrate;
- e) forming a hole injection layer over the metal interconnections;
- f) depositing organic light emitters on the hole injection layer;
- g) depositing an electron transport layer on the organic light emitters;
- h) depositing a metal cathode layer on the electron transport layer;
- and
- i) placing metal contacts on the corners of the transparent metal oxide layer.
A method of manufacturing an organic electroluminescent display, comprising the steps of:
- a) providing a transparent substrate having opposite faces;
- b) etching a pattern of surface acoustic wave reflectors into one face of the substrate;
- c) forming a conductive layer on the opposite face of the substrate;
- d) patterning the conductive layer to form metal interconnections for light emitting elements;
- e) forming a hole injection layer over the metal interconnections;
- f) depositing organic light emitters on the hole injection layer;
- g) depositing an electron transport layer on the organic light emitters;
- h) depositing a metal cathode layer on the electron transport layer;
- and
- i) forming acoustic wave transducers on the one side of the substrate.
Dependencies are inferred from the claim text.