According to a report in DigiTimes, Apple’s 27-inch iMac is facing shipment delays as Apple’s main iMac panel supplier LG is having trouble with production.

The report quotes industry sources as saying that the  LG Display has reportedly been facing full lamination issues while producing the panels, slowing down shipments of the 27-inch device to 100,000 units a month,

According to Apple’s online store, the 27-inch iMac is expected to ship in 3-4 weeks, which is much longer when compared to the 21.5-inch iMacs, which are available to ship in 7-10 business days.

Apple had launched the newer, slimmer versions of the iMac in October last year, at the same event where the iPad mini was launched. The new iMac is only 5 mm thick at the edges and is 40 percent thinner than the previous versions.

The 27-inch version has a screen resolution of 2,560 × 1,440 pixels and the 21.5 inch version has a screen resolution of 1,920 × 1,080 pixels.