OLEDs are very thin and can be mounted on flexible materials such as plastic or metal foil. Using plastic instead of glass will make the display more durable and lighter. Flexible OLED panels are concave from top to bottom and have a bending radius of up to 700 mm.
OLEDs use plastic substrates instead of the common glass substrates. They use thin film encapsulation technology and attach a protective film to the back of the panel to make the panel flexible and less prone to breakage. In high-generation OLED panel production lines, in addition to the traditional vapor deposition process, printing process has also begun to be used. For example, TCL Huaxing's 8.6 generation OLED production line under construction uses printing process, which is different from the traditional vapor deposition process used by BOE and Samsung's 8.6 generation OLED production lines. Its process is simplified and has a theoretical cost advantage. [24] Flexible screens can be rolled up, and future products should be foldable and have more varied shapes.
Displays are cut from panels. Flexible displays are also called flexible screens. They are regarded as the initial stage of the display revolution, with the ultimate goal of transforming mobile and wearable electronic devices.