Pixel configurations for high resolution OVJP printed OLED displays
AssigneeUniversal Display Corporation
InventorsJinJu Lin, Gregg Kottas, William E. Quinn
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Abstract
Methods and OLED devices are provided in which organic emissive materials are deposited over a substrate via OVJP print heads in a continuous line extending from one edge of the active display portion of a substrate to another. The print heads are arranged such that the sidewalls of the OVJP jet are disposed over non-emissive insulating portions of the display panel, thereby allowing for improved pixel density and resolution in comparison to conventional OVJP and similar techniques.
Claims20
A method of fabricating a display, wherein the display comprises a full-color organic light emitting diode (OLED) display, the method comprising:
- obtaining a substrate having a non-emissive insulating layer that defines active pixel areas on the substrate;
- and
- depositing, via a first organic vapor jet printing (OVJP) print head, a first organic emissive material over the substrate in a continuous line extending from a first edge of an active display portion of the substrate to a second edge of the active display portion of the substrate and being deposited over at least a portion of the non-emissive insulating layer and over at least a first portion of the active pixel areas;
- and
- depositing, via the first OVJP print head or a second OVJP print head, a second organic emissive material different than the first organic emissive material in a continuous line extending from the first edge of the active display portion of the substrate to the second edge of the active display portion of the substrate and over at least the portion of the non-emissive insulating layer that is the same as the portion over which the first organic emissive material is deposited, and over at least a second portion of the active pixel areas that is different than the first portion.
An organic light emitting diode (OLED) display device comprising:
- a substrate;
- a non-emissive insulating layer disposed over the substrate that defines active pixel areas on the substrate;
- a first organic emissive material disposed over the substrate in a continuous line extending from a first edge of an active display portion of the substrate to a second edge of the active display portion of the substrate and being deposited over at least a portion of the non-emissive insulating layer and over at least a first portion of the active pixel areas;
- and
- a second organic emissive material different than the first organic emissive material disposed in a continuous line extending from the first edge of the active display portion of the substrate to the second edge of the active display portion of the substrate and over at least the portion of the non-emissive insulating layer that is the same as the portion over which the first organic emissive material is deposited, and over at least a second portion of the active pixel areas that is different than the first portion.
Dependencies are inferred from the claim text.