Methods of forming a polymeric thin film layer on an organic light-emitting diode substrate

This invention describes a method for adding a thin plastic layer to an OLED screen. It works by printing a liquid ink directly onto an existing film on the screen, then hardening it with light to create a durable organic coating. The ink is specifically formulated to contain 70-95% of a neopentyl glycol-based di(meth)acrylate monomer, often with a small amount of a light-activated chemical.

Why it matters: OLED display technology has significantly matured since 2017, particularly with the development of flexible and foldable form factors. This creates a greater need for advanced, thin film encapsulation methods, while precision printing and UV curing systems have also become more refined.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedCustom ink, precision printer, UV curing system

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