Stretchable Light-emitting Device Turns Human Skin into Displays

A Chinese research team recently develop a stretchable light-emitting devices which delivers information and can be attached to human skin and other surfaces. The device is like a temporary tattoo and can be operated at low voltage so it does not cause harm to users.

Published in ACS Materials Letter in October 2019, the results from researchers at Nanjing University in China demonstrated stretchable light-emitting devices called alternating-current electroluminescent (ACEL) displays. The device has a sandwiched structure with an electroluminescent layer made of light-emitting microparticles dispersed in a stretchable dielectric material and two flexible silver nanowire electrodes.

A new type of dielectric material that is in the form of ceramic nanoparticles embedded in a rubbery polymer helps to increase the brightness of the device compared with existing ACEL displays. The researchers used this material to make a four-digit stopwatch display mounting onto a volunteer’s hand. The display deliver sufficient brightness under indoor lighting with low voltages.

(Image:ACS Materials Letters)

The researchers believe that the stretchable epidermal display can be implement for a wide range of applications in smart wearables, soft robotics and human-machine interfaces.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

New LUXEON LED® with BIOS SkyBlue® Circadian technology eliminates barriers to better Human Centric Lighting Today, Human Centric Lighting (HCL) innovator BIOS, and global lighting solutions provider Lumileds®, have joined forces t... READ MORE

Topcon Technohouse Corporation (, optical measurement instrument manufacturer such as luminance meter, spectroradiometer proudly launched 2D spectroradiometer SR-5100 series (Fig.1) built in self-developed a... READ MORE