Display Substrate Barrier Wall for Under-Display Camera Encapsulation

An encapsulation layer is introduced as an intermediary barrier between the organic light-emitting material and the external environment. This encapsulation layer prevents direct contact between oxygen/moisture and the sensitive organic materials, thereby maintaining material stability while preserving the superior color representation and viewing angles of organic LEDs.

The patent creates a protected environment around the organic light-emitting material by enclosing it in an encapsulation structure that excludes reactive substances like oxygen and moisture. This effectively establishes an inert atmosphere that prevents degradation reactions, allowing the organic materials to maintain their optical properties and performance over time.

The patent replaces the conventional sputtering process (which requires high vacuum and high power) with an electrochemical deposition process. This electrochemical method uses electrical current in an electrolyte solution to deposit transparent conductive oxide materials, eliminating the need for high vacuum equipment and significantly reducing power consumption while achieving the required electrical conductivity and transparency.

The patent changes the deposition parameters from high-vacuum plasma conditions to aqueous electrochemical conditions. By altering the deposition environment from vacuum to liquid electrolyte and from plasma physics to electrochemistry, the process achieves transparent conductive oxide deposition at lower power consumption and without requiring high vacuum systems.

The patent substitutes the complex mechanical vacuum sputtering system with a simpler electrochemical deposition system. The electrochemical process uses standard laboratory equipment (power supply, electrolyte solution, substrate holder) to achieve high-quality transparent conductive oxide films, eliminating the need for expensive vacuum chambers, magnetic fields, and complex sputtering apparatus.

The patent changes the deposition parameters from vacuum-based physical sputtering to solution-based electrochemical deposition. This parameter change simplifies the equipment requirements from high-vacuum systems to simple electrochemical cells, while maintaining or improving film quality through controlled electrochemical reactions that enable precise compositional control.

An encapsulation layer is introduced as a protective intermediary between the lightweight organic light-emitting materials and the external environment. This encapsulation prevents degradation from oxygen and moisture exposure, thereby maintaining performance stability over time while preserving the inherent lightweight and flexible characteristics of organic LED materials.

The patent creates a protected inert environment through encapsulation, shielding the organic light-emitting materials from reactive substances like oxygen and moisture. This allows the lightweight organic materials to maintain their optical and electrical properties over extended periods, achieving both weight reduction and long-term performance stability.