Kent State University

Universal Display Corporation

Yue Cui

Deng-ke Yang

Ruiqing Ma

Julia J Brown

Gregory McGraw

Deng-Ke Yang

Cuiyu Zhang

Gregory Mcgraw

Novel microlens array architectures for enhanced light outcoupling from light emission are provided. Organic light emitting devices (OLEDs) that include an outcoupling layer including these novel microlens array architectures and method for fabricating such OLEDs are provided. These devices may be used to provide OLEDs with optimized light extraction.

Microlens array architectures for enhanced light outcoupling from an OLED array

OLED structures including an internal extraction layer are provided. The internal extraction layer includes a material having a refractive index that is higher than the refractive index of a transparent electrode in the device, and a non-planar interface disposed between the material and the substrate. Devices are also provided that include an external extraction layer having a non-planar surface which, when used in conjunction with an internal extraction layer, provides greatly improved outcoupling of light generated by the device.

Combined internal and external extraction layers for enhanced light outcoupling for organic light emitting device

An encapsulated polymer stabilized cholesteric texture (EPSCT) light shutter is formed from a cholesteric liquid crystal and monomer that is encapsulated into micron sized, polymer-coated droplets by either an emulsification or phase separation process. The polymer-coated droplets are disposed between transparent electrodes, where they are irradiated by ultra-violet (UV) light to polymerize the monomer.

Encapsulated polymer stabilized cholesteric texture light shutter

Growing community of inventors

Kent, OH, United States of America

Yue Cui