TrendForce explains that as LTPS production capacity ceases to expand, panel suppliers are fighting for orders from clients, leading to intense competition in panel prices. Furthermore, LTPS panels with narrower bezels, energy-saving and other specifications performed better in the market and thus increase customers' acceptance of LTPS panels. It was originally forecast that, as more and more brands increasingly adopt LTPS devices, the share of these devices in the smartphone market will rise from 37% last year to 42.1% this year. But the Huawei ban near the end of May introduced some changes to the supply-demand situation of LTPS panels.

TrendForce points out that Huawei's phone shipments for 2019 were originally feared to become impacted by the US ban, impacting orders along the panel supply chain. This moved panel suppliers to adjust utilization from June onwards. Since this series of order adjustments was caused by a sudden event, panel manufacturers probably won't be able to completely transfer production capacity to other applications or clients in the short-term. After the decline of the South China “white box” market, most customer brands also don't have the ability to absorb the additional production capacity of panel manufacturers. The expected share of LTPS devices in the global smartphone market is therefore cut down to 40.6%, which also implies a spike in LTPS panel oversupply pressure in the short term.

Originally, panel manufacturers and phone customer brands had to take some time to adjust their supply/demand situation under the restrictions of the ban. TrendForce therefore predicted that as phone brands began to set their annual goals for 2020 entering 4Q19, total utilization for LTPS production lines may get a chance to recover. But after the relaxing of the Huawei ban, it remains to be observed whether utilization may experience a full recovery by mid-3Q or the end of 3Q.

Meanwhile, another risk limiting the future development of LTPS panels is AMOLED panel supply. Production capacity for AMOLED panels will increase as China's panel manufacturers actively increase production capacities overall, and phone customer brands will also increase their demand for AMOLED panels.

This will no doubt crowd out LTPS panels to some extent in the future, and as soon as LTPS panels lose the support of demand from large-scale customers such as Huawei, they will necessarily expand their market reach, either moving towards mid-range or low-end phones and eroding the shares of a-Si devices, or accelerating the turn towards non-phone applications.