One of the contributing factors for driving up the fab utilization rate is the sudden rise in demand for larger TV panels, notably in 2016, when the average area size of overall TV panels increase by 1.9 inches from the previous year, raising the unit area by about 10 percent.

TV display panels, which account for about 70 percent of overall display area demand, suffered a fall in unit demand in recent times, but the area demand is expected to increase by 6 percent in 2016. A rise in TV panel demand is now projected to raise overall display panel area demand by 5 percent in 2016 compared to a year ago.

As a result, display panel makers are increasing the utilization rate of Gen 7 fabs and later Gen fabs, used mainly to produce TV panels, and can be expected to stay high in the fourth quarter of 2016 and beyond.

“Such a high utilization rate would suggest that these fabs are running at full loading, considering the remaining capacity is already allotted for test runs and maintenance,” said Alex Kang, senior analyst of display research at IHS Markit.

“This increase in display panel area demand has allowed panel manufacturers to sustain inventory levels that are considered healthy, and has prevented a sharp drop in utilization rate this year,” Kang added.

IHS Markit expects that panel manufacturers’ year-end panel inventory level will remain healthy at under four weeks. This will allow panel manufacturers to maintain a high utilization rate for a certain period of time regardless of demand fluctuations with sufficient space to pile up extra production stock.

With a healthy inventory outlook, panel manufacturers are projected to reach a fab utilization rate of between 85 and 90 percent in the first quarter of 2017 after the year-end peak season, which is up by between 5 and 10 percentage points since the first quarter of 2016.