OLED Innovative Technology

In recent years, with the advantages of high brightness, high efficiency, wide viewing angle, autonomous luminescence, all solid state, ultra-thin and ultralight, simple fabrication process and fast response speed, double-layer, high-efficiency organic light-emitting devices (OLEDs) have begun to be widely promoted in the screen display field. At the same time, OLED lighting has begun to enter the daily life of the public and become a potential stock for the development of the lighting industry.

In the field of lighting, OLED can not only be used as indoor and outdoor general lighting, backlight and decorative lighting, but also can produce artistic flexible luminous wallpaper, monochrome or color luminous windows, wearable luminous warning signs and other dreamlike products. It has broad prospects for development in domestic cultural tourism night tours, smart home and other lighting hot spots.

To this end, China Lighting Network hopes to bring new ideas for the high-quality development of the national lighting industry by reviewing a series of innovative technologies related to OLED in the world in recent years.

Stretchable OLED material

In March this year, Professor Park Jinwoo of Yonsei University in South Korea made all the scalable OLED components and developed the scalable OLED materials. Such materials can be applied to mobile phones with changeable screen size or shape, wearable devices closer to skin, more realistic three-dimensional tactile display, etc.

The material can still work stably when it is increased to 80%, and its performance has not changed after more than 200 telescopes, especially when the voltage of 8V is 60% lower than the published telescoping OLED.

In terms of structure, this material makes all the substrates, anodes, hole transport layers, light-emitting layers, electron transport layers and cathodes that make up OLEDs into scalable materials. Under the tensile stress of 60-80%, the three primary colors RGB of the panel can work stably. When the retractable OLED device is deformed with a sharp ball point pen core, the stable operation can also be maintained.