Enabled by atomic layer deposition (ALD) these displays from Lumineq can be used in applications where fully transparent properties are required.
The solid-state glass panel consists of a luminescent phosphorous layer sandwiched between transparent dielectric layers and conductive ITO electrodes. By applying voltage to the electrodes, a pixel/segment is lit causing the area of intersection to emit light.
The supplier uses atomic layer deposition (ALD) to create thin films just a nanometer thick which provides the transparency.
For touch capabilities a in-cell PCAP is used where the touch sensors are integrated directly into the existing functional layers of the display technology, which means there are no additional layers.
The touch sensitive areas use the existing indium tin oxide (ITO) layers used for the electro luminance display.
Future applications could include window security keypads controlling entry into rooms or cars.