LG and Sharp failed to meet Apple's quality requirements for its new iPad leaving Samsung as the sole supplier of Retina displays for the device, an analyst has claimed.

Bloomberg reports that IHS iSuppli's Vinita Jakhanwal has said that Samsung is currently the only company supplying the displays to Apple.

"The display specifications on the new iPad are very demanding in terms of the very high resolution. Achieving this high resolution without compromising on the power consumption and brightness and maintaining Apple’s quality standards are supposedly proving to be a challenge for LG Display and Sharp," Jakhanwal told Bloomberg.

LG is the largest supplier of displays for Apple's other iOS devices but Samsung's position as the sole supplier for the new iPad's displays emphasises the strange situation that Apple and Samsung currently find themselves in, with Samsung both a vital component supplier and yet an opponent in several courtrooms around the world.

Meanwhile Samsung executives seem to believe that Apple is going to launch a smaller iPad later this year, reports the Korea Times.

While Apple also relies on Samsung for other components, such as semiconductors, the contract between the two companies, thought to be worth $9.7bn, could rise to $11bn by the end of the year, a Samsung executive said.

"The contract is expected to rise to $11 billion by the end of this year as Apple is planning to release a smaller iPad, probably with a 7.85-inch screen, and to sell more of its MacBook Air PCs using Samsung’s faster solid state drive (SSD) storage," the executive is quoted as saying.

Earlier this month, a report from Samsung Securities, the investment bank arm of the South Korean firm, said that it expected Apple to launch a smaller iPad in Q3 2012.