Universal Display had no grants in advanced materials as a theme in Q1 2024.

Recent Patents

Application: Organic electroluminescent devices (Patent ID: US20240057374A1)

The patent filed by Universal Display Corp. describes an OLED design that incorporates an enhancement layer with optically active metamaterials to transfer radiative energy from the organic emissive material to non-radiative modes, improving efficiency. This enhancement layer is positioned close to the organic emissive layer and is paired with an outcoupling layer that scatters radiative energy to free space, increasing light emission. The device is suitable for various applications, including displays, lighting, and electronic devices.

The organic electroluminescent device outlined in the patent includes a substrate, a first electrode, an organic emissive layer, an enhancement layer with plasmonic materials, and an outcoupling layer that converts non-radiative energy to photons. The outcoupling layer can be directly in contact with the enhancement layer or have intervening layers with low refractive index. The nanoparticles in the outcoupling layer can be of specific shapes and materials, arranged in various patterns. The device is designed to emit light primarily from the surface closer to the enhancement layer, ensuring efficient light generation. Additionally, the patent lists a wide range of potential applications for this OLED technology, from displays to wearable devices and automotive displays.

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