Displays

Stretchable micro-LED display is suitable for industrial manufacturing

26 May 2021

Royole Corporation presented new research findings at the 2021 Display Week Symposium, demonstrating the world's first micro-LED-based stretchable display technology compatible with industrial manufacturing processes.

Stretchable electronics are the future of flexible technologies, building electronic circuits with stretchability and elasticity that can not only fold or roll, but are also capable of 3D free form shaping, including pulling, twisting, convex and concave deformations.Royole introduces world's first micro-LED based stretchable display technology compatible with industrial manufacturing processes at 2021 Display Week Symposium. Source: RoyoleRoyole introduces world's first micro-LED based stretchable display technology compatible with industrial manufacturing processes at 2021 Display Week Symposium. Source: Royole

To experimentally verify the process and design method of this research, Royole implemented a 2.7-in stretchable demo panel in 96×60 resolution. Royole was then able to demonstrate that its micro-LED stretchable display technology is capable of 130% stretchability, transmittance as high as 70%, convex bending up to 40 degrees, while reaching a resolution up to 120 pixels per inch (PPI).

The breakthrough was achieved with the use of micro-LEDs. With this research, Royole shows that micro-LEDs demonstrate higher stretchability, finer pitch and higher transmittance as compared to stretchable AMOLED and LED prototypes exhibited previously in the display industry, making it highly applicable for smart solutions requiring transparency, such as in car windshields or sunglasses.

This research confirms that techniques used to develop stretchable displays can be applied in existing flexible display panel manufacturing processes, such as Royole's industry-leading proprietary Ultra-Low Temperature Non-Silicon Semiconductor Process (ULT-NSSP), which will accelerate the scalability of this nascent technology. Royole has filed over 80 patents globally on stretchable technologies and micro-LEDs.

To learn more about this research, visit global.royole.com.

To contact the author of this article, email engineering360editors@globalspec.com


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