Foldable Phones Predicted to Exceed 100 Million Units by 2026

According to UBI Research’s “1Q22 Small OLED Display Market Track” Small OLED Display (10-inches or smaller watch, smartphone, foldable phone, etc.) shipment in 2021 was 746 million, a 34.4% increase from the previous year’s 555 million. The reason for the increase in shipments compared to 2020 can be attributed to the increased sales of iPhone 12, iPhone13, and the unexpectedly strong sales of Galaxy Z’s Fold 3 and Flip 3.

Compared to the previous year, Small OLED sales in 2021 was up from $26.5 billion to $38.1 billion, a 43.9% increase.

Graphs are categorized by application product; Watch, Smartphone, Foldable Phone.

Since 2019, foldable phones have been on an upward trend. The market for foldable phones in 2021 exceeded 10 million units, accounting for 1.4% of all small displays. It is predicted that foldable phones’ yearly upward trend will result in exceeding 100 million units by 2026, accounting for 9.7% of all small displays.

“1Q 2022, Small OLED Display Market Track” analyzes the production capacity for 10-inches or smaller OLED Displays. Quarterly sales market and shipment market were investigated by these categories; major panel makers, country, generation, substrate, TFT technology (LTPO and LTPS), and by application products (watch, smartphone, foldable phone).

An analysis of ASP and OLED supply/demand by application is also provided. Small OLED Display market forecast data is predicted until 2026 on Excel.


Small OLED performance in the second quarter of 2021

According to the market track on small OLED market performance of less than 10 inches published by UBI Research, Revenue and shipments in the second quarter were about $9.5 billion and 161.7 million units, respectively. QoQ(Quarter over Quarter) revenue and shipments decreased by -14.0% and -5.8%, respectively. Compared to the year over year (YoY), Revenue and shipments increased by 70.1% and 56.3%, respectively.

In 3Q, Samsung Display’s 6G LTPO TFT line capacity is expected to be increased to 60K units. LG Display decided to invest $15,000 in the LTPO TFT line for P6 ph3. The expected equipment installation time is the second quarter of 2022. BOE’s B15, which reviewed the investment in the 6G flexible OLED line, was changed to the 8.5G line for IT manufacturing. Revenue and shipments are expected to increase in the second half of 2021 with the mass production of Apple’s iPhone 13.


Medium & Large OLED performance in the second quarter of 2021

UBI Research has published a market track on the market performance of 10-inch and larger OLEDs. Applications include TVs, monitors, laptops, and tablet PCs.

According to UBI Research’s Medium & Large OLED market track, the total revenue in the second quarter were about $1.5 billion, which is a 6.5% (QoQ) increase from the previous quarter and 129.6% in the same quarter of the previous year (YoY). In the second quarter, shipments totaled 5.1 million units, an increase of -3.6% (QoQ) and 40.4% (YoY). Samsung Display’s notebook OLED shipments in the second quarter were about 900K units. LG Display shipped 1.8 million TV panels in the second quarter of 2021.

Although there were concerns about a decrease in the utilization rate of the rigid OLED line due to the decrease in OLED for smartphones sold to Samsung Electronics, the A2 line is gradually being converted to production of OLED for laptops due to the increase in rigid OLED demand. In the first half of the year, two 12K lines were put into OLED production for notebooks, and in the second half, it is planned to increase to three or four lines.

Apple’s iPad, which will be mass-produced by Samsung Display from the end of the year, will use LTPO TFT and hybrid OLED (rigid substrate + TFE).


Apple adopts LTPO TFT to extend battery life time to Apple Watch Series 4

Reporter & Analyst : Daejeong Yoon

Apple released its Apple Watch Series 4 with enhanced healthcare features on a larger screen than before, in the Steve Jobs Theater at Apple Park in California, USA on September 12.

<Apple Watch Series 4, Source:>

In this announcement, Apple brought Apple watch series 4 with a new technology called LTPO to improve power efficiency.

LTPO stands for low temperature polycrystalline oxide. It is a kind of TFT using only the advantages of poly-Si with good charge mobility and IGZO with low power driving. LTPO TFTs have low leakage current and good on / off characteristics, which lowers power consumption and increases battery life.

<Apple’s LTPO TFT patent>

In addition, Apple increased the size of its Apple Watch 4 to 40mm and 44mm. The edge-to-edge screen is 35% and 32% larger than previous models by narrowing the bezel compared to previous models. The screen resolution was 368×448 pixels for the 44mm model and 324×394 pixels for the 40mm model. The display of Apple Watch4 is a plastic OLED made by LG Display with a maximum brightness of 1,000 nit. The Apple Watch Series 4 starts at US$399 for GPS model, while the cellular model starts at US$499. The Apple Watch Series 4 is available for pre-order from Septmber14 in the U.S. with the availability beginning September 21.

Apple, Apple Watch Series 4에 배터리 지속 시간 늘리는 LTPO TFT 적용

Apple이 현지시간으로 9월 12일 미국 캘리포니아주에 위치한 애플 파크 스티브 잡스 극장에서 이전보다 더 큰 화면에 헬스케어 기능을 강화한 Apple Watch Series 4를 발표했다.

<Apple Watch Series 4, Source:>

Apple은 이번 발표에서 Apple watch Series 4에 LTPO라는 새로운 기술을 도입해 전력 효율을 향상시켰다고 밝히며 이목을 끌었다.

LTPO는 low temperature polycrystalline oxide의 약자로써, 전하 이동도가 우수한 poly-Si과 저전력 구동이 용이한 IGZO의 장점만을 활용한 TFT의 일종이다. LTPO TFT는 누설전류가 적고 on/off 특성이 좋기 때문에 소비 전력이 낮고 배터리의 지속 시간은 늘어난다.

<Apple의 LTPO TFT 특허>

또한, Apple은 Apple Watch 4의 본체 규격을 40mm와 44mm로 키우고 bezel을 좁혀 이전 모델들에 비해 display area를 35%와 32%로 늘렸으며, 화면 해상도도 44mm 모델은 368×448 픽셀, 40mm 모델은 324×394 픽셀로 증가시켰다고 설명했다. Apple Watch4의 디스플레이는 LG디스플레이에서 제작한 plastic OLED이며 최대 밝기는 1,000 nit이다.

Apple Watch Series 4의 출시 가격은 GPS 모델이 399달러부터이며 셀룰러 모델이 499달러부터다. 예약 주문은 9월 14일부터 진행되고 제품 출시는 21일부터다.