TCL China Star Optoelectronics Technology (CSOT, also called Shenzhen Huaxing Photoelectric Technology) is a China based display producer (owned by TCL, Century Science & Technology Investment and Samsung Display). The company is producing both LCDs and OLED displays.
CSoT started developing OLED technologies back in 2012. In 2013 it was reported that CSOT will invest over $4 billion to build a 8.5-Gen Oxide-TFT LCD+OLED TV fab, but that did not materialize. In 2017 CSoT started to construct a 6-Gen LTPS flexible AMOLED production line in Wuhan, China, in a $5.08 billion investment. CSoT is now producing mobile AMOLED displays at that fab, and is developing high-end technologies, including LTPO, microlens arrays and polarizer-free OLEDs.
CSoT is very active with inkjet printing technologies, and is aiming to start mass production of OLED TV panels by 2024. Over the years the company presented impressive prototypes of printed panels.
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TCL and Juhua Printing showcase an inkjet-printed 31" FHD rollable hybrid QD-OLED TV prototype
Update: It seems we were mistaken, this prototype is not a hybrid QD-OLED, but a 'regular' OLED. This is still an impressive development - a rollable inkjet-printed OLED display.
TCL and Juhua Printing demonstrated a 31" FHD inkjet-printed rollable hybrid QD-OLED TV prototype. The display uses an IGZO (Oxide-TFT) backplane and TCL says that it has an aperture ratio of over 50%, brightness of 200 nits and a 90% DCI-P3 color gamut.
TCL's hybrid display technology (which TCL calls H-QLED) uses a blue OLED emitter coupled with red and green QD emitters. All three emitter materials are combined and printed using ink-jet printing technology.
ETNews: Chinese OLED producers are attempting to find customers in Korea's smartphone industry
In July we reported that LG Electronics is in talks with China-based BOE to supply OLED panels for future smartphones, to replace LGE's current supplier - its sister company LG Display. A new report from Korea's ETNews confirms this, saying that LG Display is focusing on Apple as its future customers, and LGE's small shipments is not critical for the company.
ETNews also suggests that Samsung Electronics is in early talks with China's CSoT for flexible OLED supply for low-end and mid-tier smartphones. CSoT is not yet producing flexible OLEDs in volume - the company started pilot production in its Wuhan fab in May 2019.
DSCC: OLED to overtake LCD production capacity for mobile applications in 2020
DSCC says that OLED mobile display production capacity will overtake LCD capacity in 2020, and will reach a 65% market share in 2025.
Looking at the entire display market (mobile and TV and others), DSCC sees OLED production capacity rising at a 20% CAGR till 2025, and OLED's market share will rise from 5% in 2019 to 14% in 2025.
DSCC sees LCD investments drying up in 2023, as the display industry shifts to OLED production
DSCC updated its display equipment spending forecast, and the company now expects LCD spending to stop completely in 2023 - as all new production lines from 2023 forward will be producing OLED displays (DSCC does not include other display technologies in this report, such as QDEL, e-paper and Micro-LEDs).
2019 will see 26% decrease in spending from 2018, with OLED spending down 64%. DSCC sees a rebound in 2020, where OLED spending will jump 132% due to new mobile flexible OLED lines in China.
PlayNitride shows advanced flexible and transparent Micro-LED displays
PlayNitride demonstrated its latest Micro-LED displays at SID DisplayWeek 2019 - a 7.56" 720x480 (114 PPI) transparent MicroLED, a flexible Micro-LED on a polyimide substrate and a high-brightness, high-resolution passive matrix MicroLED aimed towards wearable applications.
PlayNitride aims to release its first Micro-LED display products by the end of 2019. In 2017 the company started to sample micro-LED panels and shipped samples to 10-20 potential customers.
CSoT demonstrated new OLED display prototypes and technologies at SID DisplayWeek 2019
China-based display maker CSoT demonstrated several new OLED display prototypes and technologies at SID 2019, and this great new video shows these displays in action.
First up is a 31" 4K (3840 x 2160, 144 PPI) AMOLED that was produced using an ink-jet printing process on an IGZO substrate. The peak brightness is 200 nits and the refresh rate is 120 Hz. This seems to be the same panel announced in March 2018 by Joshua Printing Display Technology (established by CSoT and Tianma in 2016). The display has some noticable defects.
CSoT demonstrates its first foldable AMOLED prototype
China-based CSoT demonstrated a foldable OLED prototype at SID DisplayWeek 2019, I believe this is the first time the company has shown a foldable display.
CSoT recently started pilot production at its 6-Gen LTPS flexible AMOLED production line in Wuhan and the company already achieved some design wins with "top-class" phone makers and is expected to start shipping OLED displays to its customers in Q4 2019. The Wuhan fab will have a monthly production capacity of 45,000 6-Gen substrates.
CSoT demonstrates a 6.6" QD-OLED display prototype
CSoT demonstrated the first public QD-OLED display, during SID 2019. The company unveiled a 6.6" display that features a relatively low resolution (384x300) and brightness (50 nits). The backplane of this prototype is an Oxide-TFT.
The QD-OLED is made from blue OLED emitters with a quantum-dots color conversion layer. This is a similar design to Samsung's QD-OLED TV technology. Interestingly earlier this year CSoT's parent company TCL has unveiled a different QD-OLED technology it refers to as H-QLED which uses a combination of OLED and QD emitters.
TCL starts flexible OLED pilot production at its Wuhan CSoT fab
China-based display maker TCL announced that its 6-Gen LTPS flexible AMOLED production line in Wuhan has commenced operation. The company already achieved some design wins with "top-class" phone makers and is expected to start shipping OLED displays to its customers in Q4 2019.
TCL's production line in Wuhan (which is actually owned by the company's subsidiary CSoT) will have a production capacity of 45,000 6-Gen substrates.
TCL is developing hybrid QD-OLED display technology
TCL unveiled that the company is developing a new hybrid display technology that uses a blue OLED emitter coupled with red and green QD emitters. All three emitter materials will be combined and printed using ink-jet printing technology. TCL calls this technology H-QLED and this could prove to be the technology of choice for TCL's future high-end emissive TV displays.
It seems as TCL believes that commercial-level red and green QD emitters will be achievable in the future, but blue QD emission will be more difficult to develop, and hence it will rely on OLED emitters. TCL did not disclose more details - but this R&D effort is being performed at the company's Juhua Printing platform.
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