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US 10,483,489 B2Granted
Integrated circular polarizer and permeation barrier for flexible OLEDs
AssigneeUniversal Display Corporation
InventorsMichael Hack, Ruiqing Ma
Life of this patent
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Abstract
Devices and techniques for fabricating such devices are provided, which include an optical system having a combined permeation barrier and circular polarizer. The optical system is relatively thin and flexible, thereby allowing for OLED displays and similar devices that reduce glare while being suitable for use in flexible displays and similar devices.
Claims23
An optical system for an organic light emitting device, the optical system comprising:
- a first layer comprising a birefringent material;
- a polarizer layer;
- and
- a transparent first permeation barrier disposed between the first layer and the polarizer layer, wherein the first permeation barrier has a permeation not greater than 10−4 g/cm/day.
1 more element
A method of fabricating a display, comprising:
- disposing a first permeation layer over an organic light emitting diode (OLED), wherein the first permeation barrier has a permeation not greater than 10−4 g/cm/day;
- coating at least a portion of the first permeation layer with a birefringent material and curing the birefringent material to form a birefringent layer;
- depositing a second permeation barrier over the birefringent layer;
- and
- coating at least a portion of the second permeation layer with a polarizer material and curing the polarizer material to form a polarizer layer.
2 more elements
Dependencies are inferred from the claim text.