Apple was the first company to develop LTPO backplanes and it adopted this innovative and energy-efficient backplane technology back in 2018 in the Watch Series 4. LTPO combines Oxide-TFT and LTPS, by using the IGZO in some of the switching TFTs and LTPS in the remaining switching TFTs and all the driving TFTs. LTPO can reduce the power consumption by 5-15%, and enables variable refresh rate.

According to reports from Korea, Apple developed its 2nd-Gen LTPO backplane technology, that uses the IGZO in all the driving TFTs, and uses LTPS only in the remaining switching TFTs. This leads to higher efficiency compared to the first-generation LTPO backplane.

DSCC says that the OLED market grew around 50% (revenues) in the second half of 2023, compared to the first half of 2023. DSCC expects the OLED market to continue growing in 2024, with revenues to increase 4% over 2023 (with a 11% growth in unit shipments).

The growth in 2024 will mainly be driven by higher demand for AMOLED smartphone panels, TVs and IT applications. In the whole of 2023, DSCC estimates that the market contracted by 4%, and it is now returning to growth. 

In 2019 Samsung Display announced its decision to invest $10.85 billion in QD-OLED TV R&D and production lines. A few years later, SDC started to produce panels in its first fab, mass producing TV and monitor QD-OLEDs. The company attracted several customers (Sony and Samsung Electronics for TV panels, and several companies for its monitors), and these displays have been very well received by the market.

Since 2022, Samsung has increased its production yields, and increased its production capacity, and today it produces around 40,000 substrates a month in its 8.5-Gen production line. Reviews of QD-OLED gaming monitors and TVs are very positive, with many analysts seeing QD-OLED as improving over LGD's WOLED panels in terms of image quality. 

But the reality at Samsung Display's QD-OLED division, is likely not so rosy. It seems that the technology is facing both market challenges and technology challenges - which may lead to a decision by Samsung to abandon it altogether. 

A report from Korea suggests that SDC has transferred around 500 of its engineers from its large-area OLED development division, or about 30% of them, to its divisions that focus on small and medium-sized AMOLED development.

Samsung tri-folding AMOLED prototype

According to the report, the main reason for SDC's change of priorities is due to the need to remain competitive with Chinese-based OLED makers that are offering OLED panels at low costs. Samsung estimates that it is ahead of its Chinese competitors by only a year or a year and half, and it is just a matter of time until Chinese companies catch up with South Korea makers (SDC and LGD).