According to Plastics News, General Motors introduced its XTS Platinum concept for its Sedan, while Hyundai have unveiled its Blue-Will design.
Both of these cars feature OLED technology for the instrument panel display rather than traditional electronic screens.
The news provider explained that the materials used make it lighter and more energy efficient, although a representative from GM Motors stressed that such technology cannot be used in cars yet.
Clay Dean, design director for company's Cadillac division, told the website that these concepts are ideas for "technology disciples", which offer glimpses of the potential that OLEDs can offer.
The XTS Platinum was introduced at the North American International Show in Detroit on January 12th.
Meanwhile, Toshiba recently revealed that its TLxK LEDs are ideal for use in traffic signals, according to Electronics Talk.
