Color Conversion Quantum Dot Patents: Top Companies & Trends 2026
Color Conversion with Quantum Dots: Patents Shaping the Field
42.2% of all 2,343 records sit with just five assignees, so most of the claim space in this field is already staked out by a small group of display and materials makers. Annual filings rose from 89 in 2017 to a peak of 298 in 2022, then declined to 130 by 2024 — a 53% drop across 2021-2024. 2025 and 2026 figures are still incomplete because publication typically lags filing by around 18 months, so the true trajectory of the most recent two years will only become visible later.
- 1SAMSUNG DISPLAY CO LTD19.4%
- 2SEMICON ENERGY LAB CO LTD8.7%
- 3SAMSUNG ELECTRONICS CO LTD5.4%
- 4BOE TECHNOLOGY GROUP CO LTD4.6%
- 5NICHIA CORP4.1%
See the full color conversion with quantum dots analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about this patent landscape
Who holds the most patents in quantum dot color conversion?
The assignee ranking is led by one company with 455 records, well ahead of the fifth-ranked assignee at 97 and the tenth at 60. The top five assignees combined hold 42.2% of all 2,343 records in scope, and the top ten hold 57.3%. This is a leader-plus-long-tail structure: a small number of display and materials makers hold the bulk of the claim space, with the remaining 90 ranked companies each holding smaller shares.
Is patent filing in this field growing or slowing?
Filings peaked at 298 records in 2022 and fell to 130 by 2024, a 53% decline over that three-year span, which is the most recent period the dataset treats as complete. Publication typically lags filing by around 18 months, so the lower counts shown for 2025 and 2026 understate actual filing activity and should not be read as a continuing decline. Momentum data for individual leading assignees also shows year-over-year drops, reinforcing that the field is past its filing peak but not necessarily shrinking in R&D interest.
What technology areas do these patents actually cover?
Most records claim semiconductor device structures (H01L, 52.4% of records) or organic semiconductor layers such as OLED stacks (H10K, 31.8%), with materials-for-applications claims (C09K, 26.8%) close behind. Lighting-device-component classes like F21V and light-emitting semiconductor device classes like H10H each appear in under 6% of records. That split means most of the competitive claim pressure is on layer architecture and materials chemistry rather than fixture-level lighting design.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Color Conversion with Quantum Dots covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.