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 small and large LCD panels and is developing OLED technologies.

In March 2012 it was reported that the company plans to enter the AMOLED market. The original plan was to start production by the end of 2012 in a 4.5-Gen LTPS line, but that never materialized. In October 2012 AUO filed a law suit against two of its former executives that allegedly stole technologies (including AMOLED related ones) from the company and supplied it to CSOT.

<--break->Towards the end of 2013 it was reported that TCL and CSOT will invest 24.4 billion yuan (just over $4 billion) to build a new 8.5-Gen Oxide-TFT LCD+OLED TV fab in Shenzhen. In 2016 TCL revised its plan - and said that the new fab will use 11-Gen substrates and is to be built by 2019. In May 2018 TCL announced it has approved this plan, but now targets 2021 for actual production.

In April 2017 CSOT announced plans to construct a 6-Gen LTPS flexible AMOLED production line in Wuhan, China, in a $5.08 billion investment. In June 2017 CSoT started construction at the site.

Together with TianMa, in 2016 CSOT established a company called Guangdong Juhua Printing Display Technology to develop printing OLED TV technologies. Johua Printing is an "open innovation platform" guided by the Chinese government that collaborates with both industry and universities to drive the progress of China's display industry and the Guangdong Province specifically.



Company Address: 
No.5 FuHong Road
FuTian
ShenZhen
Guangdong Sheng
China

The latest CSOT OLED news:

TCL CSoT is deploying new OLED technologies at its production lines, including LTPO, micro lens and polarizer-free OLEDs

TCL (CSoT) announced that the company has finalized the development of several new OLED technologies, which has been deployed at the company's production lines.

TCL/CSoT 8'' PLP-LTPO foldable AMOLED prototypes (SID Displayweek 2022)

The first technology is LTPO, or Low-Temperature Polycrystalline Oxide, an OLED backplane technology developed originally by Apple. LTPO enables variable refresh rates, and TCL's technology can support a wide range of frequencies, from 1Hz to 144Hz.

TCL gets ready to produce polarizer-free LTPO AMOLED panels

According to reports from China, TCL's CSoT has finished developing its polarizer-free OLED technology (PLP) as it gets ready to adapt its T4 production line in Wuhan to produce PLP LTPO AMOLED displays.

TCL/CSoT 8'' PLP-LTPO foldable AMOLED prototypes (SID Displayweek 2022)

At DisplayWeek 2022, TCL demonstrated 8" 360-degree foldable PLP-LTPO OLEDs prototypes. PLP technology is especially useful in foldable displays thanks to their thin form factor. The company says that it will soon have a capacity of 15,000 monthly 6-Gen PLP-LTPO substrates at the T4 line.

Samsung Electronics plans to use more OLED panels produced in China in 2022

Last year Samsung Electronics started to adopt AMOLED displays produced by BOE and TCL, as the Korean smartphone makers aims to lower costs and reduce its reliance on Samsung Display.

Samsung Galaxy A73 photo

According to a report from Korea, the company plans to increase these China-produced OLED orders from around 800,000 in 2021 to around 6.5 million in 2022. It seems the main device to adopt these panels will be the Samsung Galaxy A73.

CSoT hopes to start supplying AMOLED display for Apple

TCL subsidiary CSoT is, according to report from Korea, interested in becoming an AMOLED panel supplier for Apple's iPhones.

CSoT has shipped sample panels to Apple, produced at its T4 OLED fab in Wuhan. If Apple's review is positive, CSoT will invest in a demo line for Apple, implementing new technologies required by Apple.

TCL shows a 14-inch inkjet-printed rollable OLED display

Yesterday we reported that during its DTC 2021 conference, TCL demonstrated a 65" inkjet-printed 8K OLED panel co-developed by TCL's CSoT and JOLED. During the conference, the company also unveiled another panel a rollable OLED.

TCL-CSoT 14'' inkjet-printed rollable OLED prototype (DTC 2021)

This is a 14" inkjet printed OLED panel, produced using an inkjet printing process. TCL says that it has a rolling radius of <20 mm, and has been tested for up to 100,000 cycles. The panel include a built-in AI-powered compensation algorithm (we don't have more info on that). The display has been developed by CSoT in collaboration with JOLED.

Reports from Korea suggest that BOE and CSoT are looking to establish 8-Gen AMOLED fabs

As demand for larger mobile OLED displays, for laptops, tablets and monitors is on the rise, there are reports that Samsung Display is considering building a 8.5-Gen AMOLED fab dedicated for laptop and IT displays. SDC is developing technologies to overcome the limitation in OLED deposition.

According to a new report from Korea, China's BOE and CSoT are both looking to also establish 8-Gen OLED production lines. BOE is accelerating its plans for a 2200x2500 (8-Gen) OLED deposition line, and is developing deposition technologies towards that goal. BOE's main target is to produce smartphone OLED displays, which it hopes to supply to Apple.

DSCC: Inkjet printing of emitters and color conversion layers for OLED displays to reach 7.1 million sqm by 2025

DSCC says that inkjet printing technologies for OLED display production is finally starting to gain traction, and the company sees IJP OLED display capacity to increase in a 137% CAGR from 2020 to 2025, to reach 7.1 million sqm.

Inkjet printing OLED capacity (2020-2025, DSCC)

As you can see from the chart, most of the growth will come from the printing of the quantum-dots color conversion layers in Samsung's QD-OLED fabs. Actual RGB inkjet printing will be confined to JOLED's fab which will start mass producing in 2021. In 2024, China Star (CSoT) will begin printing OLED TV panels at its T8 line.

OLED production will grow 94% in Q2 2021, as demand for OLED panels increases

DSCC says that OLED production will grow 94% in the Q2 2021, fueled by strong demand for OLED in smartphones, TVs and other devices - coupled with a recovery from the pandemic. Growth in OLED input area for small & medium displays is expected to grow 68%, while grow in OLED TV input area will grow by 134% over last year.

OLED and LCD production capacity (2019-2021, DSCC)

The chart above shows the total OLED (and mobile LCD) industry capacity. As you can see, flexible OLED capacity is growing - mainly from expansions by CSoT, Tianma and Visionox. There's also growth in rigid OLED capacity - from Everdisplay and JOLED.

TCL shows a smartphone concept that includes a rollable and foldable OLED display

Chinese smartphone producer TCL unveiled an interesting new smartphone prototype (concept?) called the Fold ‘n’ Roll.

As you can see in the video, the device has a 6.87-inch OLED display when fully folded. It can open up (out-folding) into a 8.85-inch display, and then it can open even further to a 10-inch tablet-like device using a rolling mechanism. The display itself is produced by TCL's CSoT subsidiary.

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