Patent Theme

OLED Emitter Materials

Development and optimization of organic chemical compounds and their structures, including guest-host systems and metal complexes, used within the emission layer to achieve specific light emission characteristics such as color, efficiency, and operational lifetime.

10,772 US filings from 1,053 companies since 2023 · 2023: 2,881 · 2024: 3,556 · 2025: 3,031 · 2026 YTD: 1,304

General Organic Chemistry MethodsAcyclic / Cyclic Compounds (Other Elements)Functional Materials (LCD, Lubricants)Specialty Semiconductor Devices (Legacy)Electric Heating & Lighting ControlOrganic Electronics (OLED)

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#CompanySince 20232023202420252026 YTDYoY
1Samsung Display Co., Ltd.1,959527593612227+3.2%
2UNIVERSAL DISPLAY CORPORATION1,032265318306143-3.8%
3LG DISPLAY CO., LTD.72520625417392-31.9%
4Semiconductor Energy Laboratory Co., Ltd.5049818715069-19.8%
5SAMSUNG ELECTRONICS CO., LTD.50216217012941-24.1%
6LG Chem, Ltd.4231211709438-44.7%
7Idemitsu Kosan Co., Ltd.3121001047236-30.8%
8Merck Patent GmbH24588725827-19.4%
9BOE Technology Group Co., Ltd.23055866128-29.1%
10CANON KABUSHIKI KAISHA19939626434+3.2%
11Samsung SDI Co., Ltd.18657416127+48.8%
12LT MATERIALS CO., LTD.16946603429-43.3%
13DUK SAN NEOLUX CO., LTD.16743535417+1.9%
14SFC CO., LTD.11934383215-15.8%
15ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.11349586·-89.7%
16SHARP KABUSHIKI KAISHA11332373212-13.5%
17BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD.10824313419+9.7%
18Novaled GmbH10233322710-15.6%
19DUPONT SPECIALTY MATERIALS KOREA LTD.95·75434+671.4%
20SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO., LTD.933820323+60.0%
21ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY791636198-47.2%
22KYULUX, INC.752328186-35.7%
23WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.743227123-55.6%
24HODOGAYA CHEMICAL CO., LTD.652026145-46.2%
25The Regents of the University of Michigan581223167-30.4%