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.
| # | Company | Since 2023 | 2023 | 2024 | 2025 | 2026 YTD | YoY |
|---|
| 1 | Samsung Display Co., Ltd. | 1,959 | 527 | 593 | 612 | 227 | +3.2% |
| 2 | UNIVERSAL DISPLAY CORPORATION | 1,032 | 265 | 318 | 306 | 143 | -3.8% |
| 3 | LG DISPLAY CO., LTD. | 725 | 206 | 254 | 173 | 92 | -31.9% |
| 4 | Semiconductor Energy Laboratory Co., Ltd. | 504 | 98 | 187 | 150 | 69 | -19.8% |
| 5 | SAMSUNG ELECTRONICS CO., LTD. | 502 | 162 | 170 | 129 | 41 | -24.1% |
| 6 | LG Chem, Ltd. | 423 | 121 | 170 | 94 | 38 | -44.7% |
| 7 | Idemitsu Kosan Co., Ltd. | 312 | 100 | 104 | 72 | 36 | -30.8% |
| 8 | Merck Patent GmbH | 245 | 88 | 72 | 58 | 27 | -19.4% |
| 9 | BOE Technology Group Co., Ltd. | 230 | 55 | 86 | 61 | 28 | -29.1% |
| 10 | CANON KABUSHIKI KAISHA | 199 | 39 | 62 | 64 | 34 | +3.2% |
| 11 | Samsung SDI Co., Ltd. | 186 | 57 | 41 | 61 | 27 | +48.8% |
| 12 | LT MATERIALS CO., LTD. | 169 | 46 | 60 | 34 | 29 | -43.3% |
| 13 | DUK SAN NEOLUX CO., LTD. | 167 | 43 | 53 | 54 | 17 | +1.9% |
| 14 | SFC CO., LTD. | 119 | 34 | 38 | 32 | 15 | -15.8% |
| 15 | ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD. | 113 | 49 | 58 | 6 | · | -89.7% |
| 16 | SHARP KABUSHIKI KAISHA | 113 | 32 | 37 | 32 | 12 | -13.5% |
| 17 | BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD. | 108 | 24 | 31 | 34 | 19 | +9.7% |
| 18 | Novaled GmbH | 102 | 33 | 32 | 27 | 10 | -15.6% |
| 19 | DUPONT SPECIALTY MATERIALS KOREA LTD. | 95 | · | 7 | 54 | 34 | +671.4% |
| 20 | SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO., LTD. | 93 | 38 | 20 | 32 | 3 | +60.0% |
| 21 | ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY | 79 | 16 | 36 | 19 | 8 | -47.2% |
| 22 | KYULUX, INC. | 75 | 23 | 28 | 18 | 6 | -35.7% |
| 23 | WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD. | 74 | 32 | 27 | 12 | 3 | -55.6% |
| 24 | HODOGAYA CHEMICAL CO., LTD. | 65 | 20 | 26 | 14 | 5 | -46.2% |
| 25 | The Regents of the University of Michigan | 58 | 12 | 23 | 16 | 7 | -30.4% |