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US 10,374,017 B2Granted
High resolution low power consumption OLED display with extended lifetime
AssigneeUniversal Display Corporation
InventorsMichael Hack, Michael Stuart Weaver, Julia J. Brown, Xin Xu
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Abstract
Arrangements of pixel components that allow for full-color devices, while using emissive devices that use blue color altering layers in conjunction with blue emissive regions, that emit at not more than two colors, and/or that use limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required.
Claims12
A method of fabricating a full-color OLED pixel arrangement, said method comprising:
- depositing a first emissive material through a first pixel mask over a substrate;
- depositing a second emissive material through a second pixel mask over the substrate, the second emissive material configured to emit a different color than the first emissive material;
- and
- disposing a first color altering layer in a stack with a first portion of the second emissive material;
- wherein all emissive materials in the full-color OLED pixel arrangement are deposited using no more than two depositions of emissive material through one or more physical masks.
2 more elements
Dependencies are inferred from the claim text.