OLED Brightness & Efficiency Patent Landscape 2026
The OLED brightness and efficiency patent space is highly concentrated, with Samsung Display holding a commanding lead and the top five filers collectively accounting for 42% of the hundred largest filers’ combined output. The field is still expanding on a multi-year basis—recent three-year filings sit 113% above the prior period—though annual volume has eased from its 2023 peak, and the US remains the dominant filing jurisdiction.
Samsung Display leads a concentrated but contested field
Samsung Display Co., Ltd. holds the top position with 476 patent families, more than 50% ahead of second-ranked LG Display Co., Ltd. at 312 patent families. Canon (137), Samsung Electronics (121), and BOE Technology Group (107) round out the top five.
The top five filers account for 42% of the combined output of the hundred largest filers, signaling a concentrated tier of established leaders with a visible gap before a second tier of specialist material suppliers and panel makers that each hold between 65 and 92 patent families.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Samsung Display Co., Ltd. | 476 | |
| 2 | LG Display Co., Ltd. | 312 | |
| 3 | Canon Inc. | 137 | |
| 4 | Samsung Electronics Co., Ltd. | 121 | |
| 5 | BOE Technology Group Co., Ltd. | 107 | |
| 6 | LG Chem, Ltd. | 92 | |
| 7 | Changchun Hyperions Tech Co., Ltd. | 89 | |
| 8 | SFC Co., Ltd. | 88 | |
| 9 | Universal Display Corporation | 82 | |
| 10 | LT Materials Co., Ltd. | 70 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Guangdong Aglaia Optoelectronics Materials Co., Ltd. | 65 | |
| 12 | Zhejiang Huaxian Photoelectricity Technology Co., Ltd. | 48 | |
| 13 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 46 | |
| 14 | JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD | 44 | |
| 15 | Solus Advanced Materials Co., Ltd. | 43 | |
| 16 | Kyulux Inc. | 42 | |
| 17 | Global OLED Technology LLC | 35 | |
| 18 | Merck Patent GmbH | 31 | |
| 19 | PNH Tech Co., Ltd. | 30 | |
| 20 | Novaled GmbH | 28 |
Samsung Display’s scale implies broad freedom-to-operate constraints for new entrants in core OLED device architecture, while the strong positions of material specialists—LG Chem, SFC, Changchun Hyperions, and Universal Display—indicate that emissive and charge-transport materials remain a strategically important and competitive sub-domain.
Filings from approximately 2024 onward are likely undercounted due to typical 18-to-24-month patent publication lag; the apparent moderation in 2024 and 2025 data should not be interpreted as a real decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year growth with a material-chemistry core
Annual filings rose sharply from 2017 through a 2023 peak before publication lag distorts the most recent data; the technology mix is overwhelmingly anchored in organic semiconductor chemistry and emissive materials rather than device-level or system-level engineering.
Annual filing trend
Filings climbed from 41 in 2017 to a peak of 665 in 2023, representing the core growth phase. The 2024 figure of 438 and 2025 figure of 376 reflect publication lag rather than a confirmed slowdown; the 2026 count of 27 is similarly understated and should be treated as a minimum floor.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H10K (organic semiconductors/OLED) dominates the IPC mix, followed by C09K (specialty materials) and organo-metallic and heterocyclic chemistry classes (C07F, C07D). Device-level and circuit-level classes such as H01L, H05B, and G09G are present but comparatively sparse, pointing to the field’s center of gravity in molecular and emissive-layer innovation rather than panel integration or driving circuitry.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Elimination of waveguide modes in organic light-em…
A method of increasing light emission efficiency in an organic light emitting diode (OLED) eliminates or reduces at least one waveguide mode selected from the group consisting of: transverse electric (TE0) mode, transverse magnetic (TM1) mode, and combinations thereof by disposing an ultrathin electrically conductive transparent metallic electrode having a… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Organic light-emitting compound and organic electr… | 38 |
| 2 | Organic light-emitting compound and organic electr… | 17 |
| 3 | 一种化合物及有机电致发光器件 | 16 |
| 4 | 多环化合物及利用其的有机发光器件 | 14 |
| 5 | Organic Light Emitting Device and Organic Light Em… | 14 |
| 6 | Top-emittierendes, elektrolumineszierendes Bauelem… | 14 |
| 7 | Electronic device | 11 |
| 8 | 一种基于芴并杂环的三芳胺类衍生物及其有机电致发光器件 | 11 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the patent structure means for R&D investment decisions
The combination of multi-year growth, high leader concentration, and a chemistry-heavy technology mix shapes where new R&D investment can realistically differentiate versus where it faces entrenched barriers.
Growth stage with peak-year moderation
The field is classified as Growth: the most recent three-year window of filings sits 113% above the prior three-year window. Annual volume reached a peak in 2023 and has eased since, though publication lag means recent-year counts are understated. The technology is past early-stage uncertainty but has not entered saturation—differentiated molecular and device architecture claims remain viable.
Growth stageTwo-tier structure with a material-specialist mid-tier
Samsung Display and LG Display form a clear upper tier by volume. A dense mid-tier of material companies—LG Chem, SFC, Changchun Hyperions, Universal Display, and LT Materials—each hold between 70 and 92 patent families. New entrants face the highest friction in core OLED device architecture (H10K50) but potentially lower barriers in adjacent chemical subclasses where leader coverage thins.
High concentrationPanel-maker and material-supplier pairings dominate co-filing
The most active co-filing relationships pair panel makers with material suppliers: LG Display with Rohm and Haas Electronic Materials Korea (14 joint families) and with LT Materials (12), Samsung Electronics with Samsung SDI (14), and BOE Technology Group with its Chengdu subsidiary (13). LG Display also co-filed with Korea University (5), indicating some academic linkage. These pairings suggest that supply-chain-integrated R&D is a structural feature of the field.
Supply-chain co-filingUS leads filings; China is the rising second jurisdiction
The United States is the leading filing jurisdiction, followed by China and Europe (EPO). South Korea, despite being home to the top two applicants, ranks fifth by filing count, suggesting that Korean firms prioritize US and Chinese patent protection for commercial reasons. PCT filings are relatively modest, pointing to direct national-phase strategies rather than broad preliminary protection.
US-first geographyGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| LG Display Co., Ltd. | Rohm and Haas Electronic Materials Korea LLC | 14 |
| Samsung Electronics Co., Ltd. | Samsung SDI Co., Ltd. | 14 |
| BOE Technology Group Co., Ltd. | Chengdu BOE Optoelectronics Technology Co., Ltd. | 13 |
| LG Display Co., Ltd. | LT Materials Co., Ltd. | 12 |
| BOE Technology Group Co., Ltd. | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 7 |
| BOE Technology Group Co., Ltd. | Beijing BOE Technology Development Co., Ltd. | 7 |
| Samsung Display Co., Ltd. | Dongjin Semichem Co., Ltd. | 5 |
| LG Display Co., Ltd. | Korea University Research and Business Foundation | 5 |
| LG Display Co., Ltd. | DuPont Electronics & Imaging Korea Co., Ltd. | 4 |
| BOE Technology Group Co., Ltd. | Hefei BOE Zhuoyin Technology Co., Ltd. | 4 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Samsung Display leads on volume; LG Display is the fastest-accelerating major filer
The two Korean panel giants define the top tier, but their trajectories differ sharply: Samsung Display’s recent filings are down 21% while LG Display has surged to 3.4 times its prior three-year pace, narrowing the gap between them.
Samsung Display Co., Ltd.
With 476 patent families, Samsung Display holds the largest portfolio in this space. Its technology focus centers on OLED device architecture (H10K50 and H10K85), with co-filing activity alongside Dongjin Semichem. Recent filings show a 21% decline versus the prior three-year window, suggesting the portfolio may be maturing or strategic filing priorities are shifting.
Families: 476LG Display Co., Ltd.
LG Display holds 312 patent families and is the strongest momentum story among major filers, with recent filings running at 3.4 times the prior three-year pace. Its technology emphasis spans OLED device layers (H10K50, H10K85, H10K59) and it maintains active co-filing relationships with Rohm and Haas Electronic Materials Korea, LT Materials, and Korea University, signaling both supplier integration and academic outreach.
Families: 312| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Samsung Display Co., Ltd. | 114 | ▼ -21% |
| LG Display Co., Ltd. | 209 | ▲ 3.4× vs prior 3-yr |
| Samsung Electronics Co., Ltd. | 95 | ▲ +7% |
| Canon Inc. | 72 | ▲ +167% |
| BOE Technology Group Co., Ltd. | 45 | ▲ +13% |
| LG Chem, Ltd. | 59 | ▲ +146% |
| Changchun Hyperions Tech Co., Ltd. | 63 | ▲ new entrant |
| SFC Co., Ltd. | 51 | ▲ +122% |
Under-served branches adjacent to the OLED core
Several IPC classes appear in the corpus at low share relative to the dominant H10K class, representing areas where coverage is sparse compared to the technical importance they could have in OLED brightness and efficiency systems.
H05B · Electric heating and lighting circuits
This branch covers driving circuitry and thermal management relevant to OLED panel efficiency, yet it represents only 1% of the IPC distribution. Most filers concentrate on molecular and emissive-layer claims; an entrant with expertise in power-efficient driving electronics or thermal regulation could find less-crowded claim space. The realistic entry path is through co-development with panel integrators or via system-level efficiency IP built on top of existing device-layer foundations.
Search this in Eureka →G09F · Displaying, advertising and signs
G09F covers display system configurations and large-format sign applications, appearing at only 1% share. As OLED technology expands into automotive, signage, and transparent display use cases—where brightness-per-watt at the system level matters—this adjacent branch is comparatively sparse. An entry path exists through system-integration patents that reference emissive materials covered upstream, particularly for non-consumer end markets where the leading Korean panel makers have thinner coverage.
Search this in Eureka →How leading filers differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | H10K 50 · Organic semiconductors (OLED etc.) | H10K 85 · Organic semiconductors (OLED etc.) | C09K 11 · Materials for misc. applications | H10K 59 · Organic semiconductors (OLED etc.) | H10K 101 · Organic semiconductors (OLED etc.) |
|---|---|---|---|---|---|
| Samsung Display Co., Ltd. | Strong · 312 | Strong · 247 | Moderate · 117 | Moderate · 118 | Moderate · 124 |
| LG Display Co., Ltd. | Strong · 267 | Strong · 183 | Moderate · 103 | Moderate · 131 | Moderate · 59 |
| Samsung Electronics Co., Ltd. | Strong · 219 | Strong · 196 | Strong · 142 | Emerging · 10 | Moderate · 94 |
| Canon Inc. | Strong · 128 | Strong · 81 | Moderate · 60 | Moderate · 61 | Moderate · 41 |
| SFC Co., Ltd. | Strong · 88 | Strong · 82 | Strong · 57 | Absent | Emerging · 12 |
| LG Chem, Ltd. | Strong · 94 | Strong · 68 | Moderate · 32 | Absent | Moderate · 20 |
| Changchun Hyperions Tech Co., Ltd. | Strong · 89 | Strong · 80 | Absent | Absent | Absent |
Frequently asked questions
Samsung Display Co., Ltd. leads with 476 patent families, followed by LG Display Co., Ltd. at 312 and Canon at 137. These three, along with Samsung Electronics (121) and BOE Technology Group (107), form the top five.
Yes, on a multi-year basis. Recent three-year filings are 113% above the prior three-year window. Annual filings peaked in 2023 at 665 and have eased since, but 2024 and 2025 counts are likely undercounted due to publication lag, so the apparent decline should not be read as a confirmed trend reversal.
H10K (organic semiconductors and OLED devices) is the dominant IPC class, followed by C09K (specialty materials for luminescence), C07F (organo-metallic compounds), and C07D (heterocyclic compounds). This reflects the field’s center of gravity in emissive-layer molecular chemistry rather than system-level integration.
The United States leads, followed by China and Europe (EPO). Germany and South Korea follow. Despite Samsung Display and LG Display being Korean firms, South Korea ranks fifth by filing count, indicating these companies prioritize US and Chinese patent protection.
LG Display is the fastest-accelerating major filer among leaders, with recent filings at 3.4 times its prior three-year pace. Canon is up 167%, LG Chem up 146%, and SFC up 122%. Changchun Hyperions Tech is a new entrant. Samsung Display, by contrast, is down 21% in its most recent period.
The most active co-filing pairs are LG Display with Rohm and Haas Electronic Materials Korea (14 joint families), Samsung Electronics with Samsung SDI (14), LG Display with LT Materials (12), and BOE Technology Group with its Chengdu subsidiary (13). These pairings primarily reflect panel-maker and material-supplier integration strategies.
Ready to map your own OLED patent landscape?
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.