QD Display Manufacturing Patent Snapshot 2026
QD display manufacturing is a concentrated field dominated by Chinese display manufacturers, with TCL Technology Group holding the largest share among the top hundred filers. Annual filing volume has eased from its 2019 peak, and the field now shows characteristics of a maturing, consolidating stage rather than one of rapid expansion.
TCL Technology leads a China-concentrated field with a modest global corpus
TCL Technology Group Corporation holds 7 patent families, the largest position among all ranked applicants, followed by BOE Technology Group and Shenzhen. China Star Optoelectronics (CSOT), each with 3 patent families. The top five filers collectively account for 63% of the combined total across the ranked applicants visible in this query, signaling a high-concentration visible assignee structure.
A clear tier gap separates TCL Technology from the second tier. BOE Technology, CSOT, and Beijing BOE Tech Dev form a mid-tier cluster, while academic institutions — including Hongik University and Henan University — occupy the lower tier with single-family positions. Samsung Display and Samsung Electronics each hold one patent family, indicating limited but strategic presence.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | TCL Technology Group Corporation | 7 | |
| 2 | BOE Technology Group Co., Ltd. | 3 | |
| 3 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. (CSOT) | 3 | |
| 4 | Beijing BOE Technology Development Co., Ltd. | 2 | |
| 5 | Hongik University Industry-Academic Cooperation Foundation | 2 | |
| 6 | Henan University | 1 | |
| 7 | Fuzhou University | 1 | |
| 8 | Samsung Display Co., Ltd. | 1 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 9 | Nanjing University | 1 | |
| 10 | Beijing Institute of Technology | 1 | |
| 11 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 1 | |
| 12 | 10644137 Canada Inc. | 1 | |
| 13 | Yonsei University Industry-Academic Cooperation Foundation | 1 | |
| 14 | Samsung Electronics Co., Ltd. | 1 | |
| 15 | HKC Corporation Ltd. | 1 |
TCL Technology’s lead reflects a broad material-science and device-architecture emphasis, while the BOE ecosystem (BOE Technology Group and Beijing BOE Tech Dev) operates across overlapping organic semiconductor sub-classes. Entrants with printing-process or photolithographic approaches remain sparse, leaving room for differentiation in process technology.
Filing counts for 2024–2026 are subject to publication lag and likely understate actual recent activity; readers should treat the apparent recent-year figures as floors rather than definitive totals. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume peaked in 2019 and 2021; organic-semiconductor classes dominate the technology mix
The annual filing trend reveals an irregular but broadly active period from 2019 through 2024, while the technology composition is heavily weighted toward organic-semiconductor and quantum-dot materials classes.
Annual filing trend
Activity peaked at 5 patent families in both 2019 and 2021, with intervening dips in 2018, 2020, and 2022. The 2023 figure of zero and the partial counts for 2024–2026 reflect publication lag and should not be read as a sustained drop; actual recent-year output is likely higher than the recorded values.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H10K (organic semiconductors, OLED structures) is the visible branch with 20 records, consistent with QD-on-OLED and QLED architectures. C09K (materials for miscellaneous applications, covering quantum dot formulations) and H01L (semiconductor devices) form the second tier. B82Y (nanotechnology applications) and G03F (photolithography and photomechanics) are present but sparse, indicating that nanoparticle characterisation and patterning process innovation are less contested.
↗ 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.
Quantum dot display panel and manufacturing method…
A quantum dot display panel and a manufacturing method thereof are provided. The quantum dot display panel includes an array substrate; a luminescent layer disposed on the array substrate; an encapsulation layer disposed on the luminescent layer; and a color filter layer disposed on the encapsulation layer. The color filter layer includes a plurality of… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | II-VI BASED NON-Cd QUANTUM DOTS, MANUFACTURING MET… | 22 |
| 2 | Display device and preparation method therefor | 3 |
| 3 | Integrated optoelectronic devices for lighting and… | 2 |
| 4 | Alloy nanomaterial, preparation method therefor, a… | 2 |
| 5 | Quantum dot display panel and manufacturing method… | 1 |
| 6 | QLED and manufacturing method thereof | 1 |
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.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
TCL Technology Group Corporation
TCL Technology Group holds 7 patent families, the largest position in the corpus. Its technology emphasis spans C09K materials (quantum dot formulations), H10K50, and H10K71 organic semiconductor device structures — a broad base covering both the light-emitting material and the display architecture. Its applicant momentum is flagged as a new entrant in the most recent filing window, suggesting the bulk of its portfolio was built in an earlier active period and recent additions are limited.
patent families: 7Shenzhen China Star Optoelectronics (CSOT)
CSOT holds 3 patent families, tied with BOE Technology Group for second rank. Its technical focus is concentrated in H10K59 and H10K50 organic semiconductor display sub-classes, with limited breadth into materials chemistry — a narrower but coherent device-level strategy. CSOT is also flagged as a new entrant in the most recent filing window with 2 recent-period families, indicating that its activity is more recent relative to the dataset window than TCL Technology’s.
patent families: 3Frequently asked questions
The corpus contains 24 patent families in scope across the surveyed period.
TCL Technology Group Corporation is the leading filer with 7 patent families, ahead of BOE Technology Group and Shenzhen China Star Optoelectronics (CSOT), each with 3 patent families.
H10K (organic semiconductors, covering OLED and QLED device structures) is the visible branch with 20 records. C09K (materials for miscellaneous applications, including quantum dot formulations) and H01L (semiconductor devices) form the secondary tier.
The field is in a decline or consolidation stage: annual filing volume has eased from its 2019 peak, and the recent-window growth figure is -54%. This indicates the foundational filing wave has passed, though publication lag means very recent activity may be understated.
The United States is the primary filing jurisdiction with 17 records, followed by China with 4. Europe (EPO), South Korea, and WIPO (PCT) each hold 1 record.
Yes. G03F (photolithography and photomechanics, relevant to QD colour-filter patterning) holds only 3 records and a 6% share, and G09F (displaying and signs, relevant to large-format QD module integration) holds only 2 records at 4% share. Both are adjacent to the visible device-architecture cluster and are not yet strongly occupied by the leading panel manufacturers.
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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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