Quantum Dot Display Patent Landscape 2026
Quantum Dot Display Patent Landscape in 2026
The quantum dot display patent space is highly concentrated, with LG Display, Samsung Display, and BOE Technology Group together accounting for the majority of activity among the top hundred filers. The field is still expanding on a multi-year basis, though annual volume has eased from its 2023 peak and the most recent years are further understated by publication lag.
LG Display leads a tight three-way race with Samsung Display and BOE
LG Display Co., Ltd. holds the top position in the quantum dot display patent landscape, followed closely by Samsung Display Co., Ltd. and BOE Technology Group Co., Ltd. The three leaders are separated by relatively narrow margins, signaling an intensely competitive core.
The top five filers collectively account for 70% of the combined total of the hundred largest filers, a concentration level that leaves limited room for challengers to close the gap without sustained, large-scale filing programs. A clear tier break separates the top three from Sharp and the remaining applicants, whose individual tallies are substantially lower.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | LG Display Co., Ltd. | 2,157 | |
| 2 | Samsung Display Co., Ltd. | 1,996 | |
| 3 | BOE Technology Group Co., Ltd. | 1,699 | |
| 4 | Chengdu BOE Optoelectronics Technology Co., Ltd. | 774 | |
| 5 | Sharp Corporation | 361 | |
| 6 | Semiconductor Energy Laboratory Co., Ltd. | 293 | |
| 7 | Beijing BOE Technology Development Co., Ltd. | 279 | |
| 8 | HKC Corporation Ltd. | 244 | |
| 9 | Samsung Electronics Co., Ltd. | 212 | |
| 10 | Innolux Corporation | 149 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Chongqing HKC Optoelectronics Technology Co., Ltd. | 130 | |
| 12 | Hefei BOE Zhuoyin Technology Co., Ltd. | 130 | |
| 13 | Duk San Neolux Co., Ltd. | 117 | |
| 14 | Baylor University | 88 | |
| 15 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 75 | |
| 16 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 49 | |
| 17 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 48 | |
| 18 | TCL China Star Optoelectronics Technology Co., Ltd. | 43 | |
| 19 | Huawei Technologies Co., Ltd. | 41 | |
| 20 | OTI Lumionics Inc. | 39 |
LG Display’s and Samsung Display’s positions at the apex reflect deep, long-running commitments to both OLED-adjacent organic semiconductor technology and display control circuit IP. BOE’s scale — reinforced by a cluster of affiliated entities — gives the group a combined footprint that rivals or surpasses either Korean leader when subsidiary filings are consolidated.
Filings from 2024 onward are likely under-counted due to patent publication lag; any apparent softening in those years should not be read as a structural 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 2023 peak; organic semiconductor IP dominates the mix
Two charts capture the temporal and technological shape of this space: a filing trend from 2017 to 2026 and an IPC-class breakdown revealing where inventive effort is concentrated.
Annual filing trend
Annual filings grew steadily from 2017 through 2023, reaching a peak in 2023 before easing in 2024. The 2025 and 2026 bars are sharply lower, but this reflects publication lag rather than real decline — the recent three-year window is still up 27% versus the prior three-year window. Read the 2023 peak as the high-water mark visible so far; treat 2024 onward as under-counted.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Organic semiconductor technology (H10K) and display control circuits (G09G) together dominate the IPC mix, followed by semiconductor devices (H01L) and electric digital data processing (G06F). Optical control and modulation (G02F), materials for miscellaneous applications (C09K), and optical elements and systems (G02B) appear at lower but non-trivial shares, indicating active secondary fronts in optics and materials chemistry.
↗ 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.
Enhancement film and lens array of quantum dot dis…
The present invention provides a quantum dot display panel and a manufacturing method thereof. The quantum dot display panel includes a pixel layer having retaining walls and quantum dots, a lens layer having a lens array, and an enhancement film having a prism array. When ambient light enters the quantum dot display panel, it will be will be converged and… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Display device | 182 |
| 2 | Display device and multi-screen display device usi… | 172 |
| 3 | Amalgamated Display comprising Dissimilar Display … | 171 |
| 4 | Flexible display device and electronic device incl… | 167 |
| 5 | Compositions, methods and systems for making and u… | 151 |
| 6 | Flexible display device | 145 |
| 7 | Multi-layer high transparency display for light fi… | 123 |
| 8 | Electronic device, program, and recording medium | 122 |
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 competitive structure means for R&D investment decisions
Four structural reads — maturity, concentration, collaboration, and geography — translate the raw patent counts into actionable intelligence for teams evaluating where to build, license, or partner.
Growth stage, past its 2023 filing peak
The field is classified as Growth: the recent three-year window sits 27% above the prior three-year window, confirming sustained expansion on a multi-year basis. Annual volume peaked in 2023 and has eased since, though publication lag means the true recent rate is higher than raw counts suggest. New entrants face an established body of prior art but the technology frontier is still moving, particularly in device architecture and materials.
Growth · past-peakTop five filers hold 70% of the hundred-largest-filer total
The top five applicants — LG Display, Samsung Display, BOE Technology Group, Chengdu BOE Optoelectronics, and Sharp — together hold 70% of the combined total among the hundred largest filers. The tier gap between the top three and the rest is substantial, making it difficult for mid-tier players to displace incumbents through organic filing alone. Licensing or targeted acquisition of niche portfolios may be a more efficient entry path for challengers.
High concentrationBOE’s intra-group co-filing is the dominant collaboration pattern
The most active co-filing relationship is between BOE Technology Group and Chengdu BOE Optoelectronics, with 769 jointly filed patent families — by far the largest collaboration pair in the dataset. BOE Technology Group also co-files extensively with Beijing BOE Tech Dev (159 families), Hefei BOE Zhuoyin Tech (127), and Hefei Xinsheng Optoelectronics (48). HKC Corp and Chongqing HKC co-file on 130 families. Samsung Display and Duk San Neolux show 19 co-filings, representing the most significant cross-company pairing outside the BOE ecosystem. True cross-firm collaborations beyond materials supply relationships remain limited.
Intra-group dominantUnited States is the primary protection market by a wide margin
The United States accounts for 6,808 patent records, making it the overwhelmingly dominant filing jurisdiction. Europe (EPO) is a distant second at 861 records, followed by China at 175 and India at 167. The relatively modest China record count — despite BOE and its affiliates being Chinese entities — likely reflects filing strategy differences and the structure of the patent record corpus. Teams protecting commercial products should prioritize US prosecution and monitor EPO opposition proceedings closely.
US-centricGo 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 |
|---|---|---|
| BOE Technology Group Co., Ltd. | Chengdu BOE Optoelectronics Technology Co., Ltd. | 769 |
| BOE Technology Group Co., Ltd. | Beijing BOE Technology Development Co., Ltd. | 159 |
| HKC Corporation Ltd. | Chongqing HKC Optoelectronics Technology Co., Ltd. | 130 |
| BOE Technology Group Co., Ltd. | Hefei BOE Zhuoyin Technology Co., Ltd. | 127 |
| BOE Technology Group Co., Ltd. | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 48 |
| BOE Technology Group Co., Ltd. | Beijing BOE Display Technology Co., Ltd. | 38 |
| BOE Technology Group Co., Ltd. | Chongqing BOE Display Technology Co., Ltd. | 31 |
| Samsung Display Co., Ltd. | Duk San Neolux Co., Ltd. | 19 |
| BOE Technology Group Co., Ltd. | Yunnan Chuang Shijie Optoelectronics Technology Co., Ltd. | 16 |
| BOE Technology Group Co., Ltd. | Beijing BOE Optoelectronics Technology Co., Ltd. | 14 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
LG Display and Samsung Display accelerating; BOE pulling back from prior pace
The three dominant players each exceed 1,000 patent families but show diverging momentum trajectories in the most recent filing window, pointing to different strategic priorities.
LG Display Co., Ltd.
LG Display leads the ranking with 2,157 patent families and is accelerating sharply, with recent filings up 176% versus the prior three-year window. Its technology emphasis centers on display control circuits (G09G), organic semiconductor devices (H10K), and semiconductor device integration (H01L) — a broad front covering both panel architecture and driving electronics. The momentum trajectory suggests active portfolio expansion rather than consolidation.
families: 2,157Samsung Display Co., Ltd.
Samsung Display holds 1,996 patent families and is growing fast, with recent filings up 119% versus the prior window. Its technology emphasis skews more heavily toward organic semiconductor device structures (H10K) relative to LG Display, with display control circuits (G09G) as a strong secondary focus. BOE Technology Group, with 1,699 patent families, shows a contrasting trend — down 28% in recent filings — suggesting a possible strategic shift toward efficiency over volume.
families: 1,996| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| LG Display Co., Ltd. | 1,161 | ▲ +176% |
| Samsung Display Co., Ltd. | 1,167 | ▲ +119% |
| BOE Technology Group Co., Ltd. | 695 | ▼ -28% |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 383 | ▲ +12% |
| Sharp Corporation | 2 | ▼ -99% |
| Semiconductor Energy Laboratory Co., Ltd. | 23 | ▼ -57% |
| HKC Corporation Ltd. | 9 | ▼ -57% |
| Samsung Electronics Co., Ltd. | 92 | ▲ +37% |
Under-served adjacent branches worth monitoring
Several IPC classes appear at the periphery of the dominant organic semiconductor and circuit-control core. These branches have lower filing density relative to the field total and may represent areas where the prior-art barrier is lower.
C09K · Materials for miscellaneous applications
With 416 patent records and a 3% share among the top branches, C09K covers luminescent and quantum-dot material formulations — the upstream chemistry layer that determines color performance and stability. The branch is adjacent to the dominant H10K and H01L device classes but has a materially lower filing density, and Samsung Electronics’ emphasis on C09K11 suggests materials chemistry is a differentiated angle. Teams with expertise in cadmium-free quantum dot synthesis or perovskite emitter formulation could establish position in this branch without directly confronting the densest part of the incumbent portfolios.
Search this in Eureka →G02B · Optical elements and systems
G02B accounts for 376 patent records and a 2% share, covering optical components such as light-extraction layers, microlens arrays, and waveguide structures that improve display efficiency and viewing angle. This branch sits between the device-fabrication core and the end-system optics domain, meaning it has lower overlap with the densest incumbent filings. For teams working on micro-LED or mini-LED backlight integration with quantum dot color conversion, this branch offers an adjacent entry point where filing density has not yet caught up with the commercial interest.
Search this in Eureka →How the leading applicants differ by technology route
Strength of each leader across the main technology routes.
| Player | G09G 3 · Display control circuits | H10K 59 · Organic semiconductors (OLED etc.) | H01L 27 · Semiconductor devices | H01L 51 · Semiconductor devices | H10K 50 · Organic semiconductors (OLED etc.) |
|---|---|---|---|---|---|
| LG Display Co., Ltd. | Strong · 1,133 | Strong · 788 | Moderate · 426 | Moderate · 237 | Emerging · 162 |
| BOE Technology Group Co., Ltd. | Strong · 706 | Strong · 813 | Strong · 531 | Moderate · 265 | Moderate · 187 |
| Samsung Display Co., Ltd. | Strong · 547 | Strong · 712 | Strong · 457 | Moderate · 228 | Strong · 478 |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | Strong · 281 | Strong · 450 | Moderate · 199 | Emerging · 55 | Emerging · 43 |
| Sharp Corporation | Strong · 121 | Moderate · 60 | Strong · 186 | Strong · 144 | Emerging · 32 |
| Semiconductor Energy Laboratory Co., Ltd. | Moderate · 113 | Absent | Strong · 232 | Emerging · 43 | Absent |
| HKC Corporation Ltd. | Strong · 181 | Absent | Moderate · 73 | Absent | Absent |
Frequently asked questions
The landscape encompasses 8,291 patent families in scope, filed across multiple jurisdictions and spanning a broad range of IPC classes from organic semiconductor devices to optical systems and materials chemistry.
LG Display Co., Ltd. holds the top position with 2,157 patent families, ahead of Samsung Display Co., Ltd. at 1,996 and BOE Technology Group Co., Ltd. at 1,699. All three lead by a substantial margin over the next-ranked applicant, Sharp Corporation, at 361 patent families.
The field is in a Growth stage on a multi-year basis, with the recent three-year window up 27% versus the prior three-year window. Annual volume peaked in 2023 and has eased since; figures for 2024 and later are understated due to patent publication lag and should not be read as a structural decline.
The United States is the dominant filing jurisdiction at 6,808 patent records, well ahead of Europe (EPO) at 861 records and China at 175 records. This reflects the strategic importance of the US market for commercial enforcement and licensing.
Organic semiconductor devices (H10K) and display control circuits (G09G) account for the largest shares, followed by semiconductor devices (H01L) and electric digital data processing (G06F). Secondary activity appears in optical control and modulation (G02F), materials for miscellaneous applications (C09K), and optical elements and systems (G02B).
The most active co-filing relationship is between BOE Technology Group and Chengdu BOE Optoelectronics at 769 jointly filed families, reflecting the group’s distributed R&D structure. Other significant BOE-ecosystem pairs include BOE Technology Group with Beijing BOE Tech Dev (159) and Hefei BOE Zhuoyin Tech (127). Outside the BOE group, Samsung Display and Duk San Neolux co-file on 19 families, representing the most notable cross-company pairing among the evidence.
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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.
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