QD Display Encapsulation Patent Snapshot 2026
The patent corpus for QD display encapsulation is extremely nascent, with only 2 patent families identified in scope, both held by a single applicant. Activity is entirely concentrated in the United States jurisdiction and in the organic-semiconductor (OLED-adjacent) IPC class, leaving the competitive field essentially open.
Single applicant holds all identifiable families in this nascent space
TCL China Star Optoelectronics (CSOT) is the only ranked applicant, holding all 2 patent families in scope. At this corpus size, the ranking reflects an early-stage rather than a mature assignee snapshot.
The top five filers account for 100% of the ranked applicants visible in this query’ combined total — a figure that is arithmetically inevitable given only one applicant appears in the ranking. This extreme concentration signals that most potential entrants have not yet filed under this specific topic combination.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | TCL China Star Optoelectronics Technology Co., Ltd. (CSOT) | 2 |
CSOT’s position as sole identifiable filer gives it first-mover standing in the formal patent record, but the small absolute count means that any new entrant with even a handful of filings could rapidly alter the competitive balance.
The corpus covers a ten-year window. The most recent 18–24 months are subject to publication lag, so filings from 2024 onward may be under-represented in the current count. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity concentrated in a single year; technology mix is fully OLED-adjacent
The annual filing trend and IPC composition together reveal a highly focused, early-stage topic with activity emerging only in 2022 and no diversification across technology branches yet.
Annual filing trend
All 2 patent families were filed in 2022; all other years in the ten-year window show zero filings. This isolated spike should be read cautiously — it may reflect a targeted filing strategy by the sole applicant rather than a broader industry wave. Years from 2024 onward remain subject to publication lag.
↗ Hover for values · click a bar to ask EurekaTechnology composition
Both families are classified under H10K (organic semiconductors, including OLED), confirming that current patent activity frames QD display encapsulation as an OLED-adjacent problem. No filings appear under inorganic semiconductor, materials chemistry, or packaging-specific IPC classes, indicating those branches are unoccupied in this corpus.
↗ 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, a manufacturing method thereof, and a display device, which relate to the field of display technology, are provided. In a technical solution provided by the present application, a quantum dot light-emitting layer in a traditional method is transferred from a side of a color filter cover plate to a side of an array substrate… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Quantum dot display panel and manufacturing method… | 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 China Star Optoelectronics (CSOT)
CSOT holds 2 patent families, covering organic semiconductor structures under IPC subclasses H10K50 and H10K59. Its applicant momentum is classified as a new entrant, with all activity recorded in 2022. The dual subclass coverage suggests an interest in both device stack and pixel-array aspects of encapsulation within the OLED framework.
families: 2No challenger identified
No second-ranked applicant appears in the evidence. The challenger tier is unoccupied in the current corpus. Any organization filing even a single QD display encapsulation family would immediately enter the ranking as a co-leader.
families: —Frequently asked questions
The evidence identifies 2 patent families in scope for QD display encapsulation.
TCL China Star Optoelectronics (CSOT) is the sole ranked applicant, holding all 2 patent families in the corpus.
Both patent families in the corpus are filed in the United States. No filings appear in other jurisdictions within this dataset.
All current activity falls under H10K, the IPC class for organic semiconductors including OLED-related structures, specifically subclasses H10K50 and H10K59.
Based on the current evidence, the space is extremely open. Only one applicant and 2 patent families are identified, indicating a nascent rather than crowded assignee snapshot.
The annual filing trend shows activity only in 2022, with zero filings recorded in all other years within the ten-year window. Years from 2024 onward may be under-represented due to publication lag.
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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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