Apple could be planning to implement OLED (organic light-emitting diode) displays in future products, it has been claimed.

9To5Mac reports that a job listing sent privately to employees of companies that specialise in display technologies suggests that OLED is high on Apple's current agenda.

The listing specifies a number of requirements from applicants, including experience of "TFT backplane process integration development for LCD or OLED displays, including LTPS backplanes" and "Active-matrix backplane design & optimization for LCD or OLED applications and associated circuitry simulations".

Additional requirements are hands-on experience in the flat-panel industry, including yield improvement and troubleshooting.

9To5Mac notes that the source who revealed the job listing has never seen an ad for OLED specialists before and reckons it to be "a good indication of what's happening in Apple's labs".

OLED displays don't require a backlight, making them more energy efficient than other types of displays such as LCD (liquid crystal display). They also have a better response rate and wider viewing angle than LCD, and can also potentially be manufactured more cheaply.

Back in January 2010, rumours surfaced that the iPhone 4 would have an OLED screen. In July of the same year, it was claimed that OLED technology could be coming to the second-generation iPad.