Researchers at the University of Tsukuba in Japan have discovered that droplets of a specific organic liquid ejected from an inkjet printer emit laser light.
They have found that the laser light can be turned on and off
by applying an electric field to these liquid droplets.
The quality and clarity of displays used in TVs and
smartphones around the world are constantly improving. Various research is
being carried out with the aim of bringing the next generation of clear and
energy-efficient laser displays to these displays.
In terms of brightness and colour reproduction, laser displays
use materials such as OLEDs and liquid crystals. All of these materials
are conventional light-emitting devices.
In order to create more effective displays in the future,
better components must be added to them. The ones that can be used in those
displays must be smaller and more densely arranged.
It is believed that the research on laser light emitted by
these liquid droplets, which has been discovered by Japanese scientists, will
create better displays of the future.
When an electric field is applied to these organic liquids,
they emit laser light. These organic water droplets are very small, about 30
micrometres in diameter, and have a density of several centimetres.
When an electric field is applied to these organic water
droplets between two electrodes, the water droplets disintegrate and emit laser
light.
Researchers have demonstrated that organic water droplets act
as laser pixels when the electric field changes.
The researchers have found that the laser emission of each
pixel can be controlled individually in a 2x3 array of these water droplets.
This research is expected to improve the future design of
electronic devices and laser performance and will lead to the development of
commercial laser displays in the future.