Hyperions
China-based Hyperions develops and produces materials for the OLED industry. The company's main products include HTL, HIL, ETL and EIL materials.
In 2023 Hyperions planned to IPO, but the plans was eventually cancelled.
OLED stack material maker - Page 2
Idemitsu Kosan
Idemitsu Kosan is a Japanese company, founded in 1911, to engage in oil distribution, and over the years they have gained experience in fuel products and basic chemicals, plastics, electronic materials and OLED materials. Idemitsu is best known for its fluorescent blue emitter and host.
IT-CHEM
IT-CHEM, established in 2005 in Korea, produces materials for the display and pharmaceutical industries.
For the OLED industry, IT-Chem produces a wide range of OLED stack materials - HIL, HTL, emitters, ETL and EIL. The company also produces OLED intermediates. In addition, IT Chem produces transparent polyimide, a monomer used to produce flexible and foldable OLED cover films.
In 2020, IT-CHEM was acquired by Cue Investment. In early 2025, the company received a multi-million dollar investment from UDC Ventures. In August 2025, the company went public, and is now trading at the KOSDAQ.
Jilin OLED Material Tech
China's Jilin OLED was established in 2005 and is engaged with development, manufacturing and sales of OLED materials. Jilin OLED is a public company (following an IPO in 2020) that trades on the Shanghai STAR Market (ticker 688378).
The company offers hole injection materials, hole transport materials, light-emitting layer materials and electron transport materials.
In August 2019 it was reported that Jilin OLED is building a $85 million OLED Material R&D center in China. In 2022, the company raised $38 million in a private placement.
In early 2026 the company announced it plans to raise new funds to build a new PSPI OLED production facility.
Kanto Chemical
Kanto Chemical, established in 1944 in Japan, develops and manufactures fine chemicals, reagents, and chemicals for the electronics industry.
For the OLED industry, the company offers hole transporting electron blocking materials that it developed in collaboration with NHK.
LG Chem
LG Chem (part of the LG Group) is developing and marketing chemicals and electronic materials. For the OLED display market, LG Chem is offering OLED stack materials.
In July 2017, Idemitsu Kosan and LG Chem announced a new collaboration agreement that will allow both companies to use each other OLED material-related patents in certain areas.
LG Chem was producing OLED lighting panels, but in 2015 the company sold the OLED lighting business unit to LG Display in a $135 million deal (LGD later withdrew from the market). LG Chem also had an OLED circular polarizer business, which was sold in 2023.
LTOM
China-based Shaanxi Lighte Optoelectronics Material (LTOM), established in 2010, develops and produces materials for the OLED and pharmaceutical industries.
LTOM produces a wide range of OLED stack materials, including emitters, host materials, and HTL materials. The company is said to be generating the highest revenue among all China-based OLED materials makers, and has an annual capacity to produce 300 tons of materials.
In 2025, the company announced plans to raise $108 million to increase its OLED production capacity as demand for its materials is on the rise. In 2024, the company reported a net profit of $24 million.
LTOM is a public company that trades in the Shanghai STAR Exchange (688150).
Luminescence Technology
Luminescence Technology (or Lumtec) is a Taiwanese manufacturer of organic chemicals for the OLED, OPV and OTFT markets.
Lumtec offers both evaporable and soluble OLED materials (HTL, HIL, ETL, EBL, Host materials and dopants). The company offers phosphorescent and TADF emitters.
In 2019 Lumtec announced that it started to produce OLED lighting panels, mainly for the automotive market. The company's production capacity is around 150,000 50x35 mm panels per month. The company is planning to expand its production capacity to 600,000 units per month.
