Foldable Display Manufacturing Patents: Who Leads, Trends 2026
- Filing activity peaked in 2023 at 7 records and has since pulled back, suggesting the core fabrication routes are already staked out rather than still forming.
- H10K dominates every filing but H05K assembly and G06F control-layer claims appear in more than half the set, showing the fight has moved to integration, not just the OLED stack.
- The most-cited record draws 12 citations twice the next-closest, and its claims sit squarely on the support-and-hinge mechanics that most rollable designs still depend on.
What this dataset covers
This landscape tracks patent families at the intersection of foldable and rollable display construction and the process claims that make them manufacturable: flexible OLED fabrication, laser lift-off, lamination process and backplane process steps. The search restricts to IPC classes covering organic semiconductor devices and related display structures, so it captures the manufacturing and structural engineering side of foldables rather than the software or UX layer.
Sixteen published families meet the criteria, filed almost entirely through the United States receiving office with a single PCT filing. That is a small, tightly scoped set: enough to show where the claim density sits and where it does not, but not a proxy for the full foldable-display patent universe, which spans far more IPC codes and filing offices than this query targets.
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Filing trend and technology composition
Two views of the same 16-family set: how filing activity has moved year over year, and which IPC subclasses carry the claims.
Filing trend: a peak, not a ramp
Filings were flat from 2017 before rising to a peak of 7 in 2023, then easing back. The midpoint year, 2022, sits at only 2 filings, which confirms the growth was concentrated in a short window rather than building steadily. Publication lag means the last one to two years understate true filing activity, but the shape through 2023 is real: this is a technology that had a defined burst of process patenting rather than continuous expansion.
IPC composition: OLED core, circuit and control layers stacked on top
Every record touches H10K (organic semiconductors), confirming the corpus is anchored correctly. H05K (printed circuits and assemblies) appears in 11 of 16 families and G06F (digital data processing) in 7, meaning most filers are not just claiming the flexible OLED stack itself but the circuit integration and control logic around it. G02F, G09F, H01L, B32B and C08J each appear in a handful of records, marking optical modulation, signage-style display structures, laminate materials and polymer processing as thinner, more exposed branches of the same claim space.
Shares are the percentage of the 16 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Foldable Display Manufacturing Process with Eureka
This page is one run against one query. Ask Eureka your own question about foldable display manufacturing process and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a representative filing
Rollable display device and a method of manufacturing the same
A rollable display device including a support module, a display module with display and non-display areas, and a resin layer between them. The support module uses a plurality of support bars arranged crosswise and connected by hinges positioned between adjacent bars, which is the structural approach that lets the panel roll rather than fold along a single crease.Filed by Samsung Display; published 2026-06-16.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20220240402A1 | Rollable display device and a method of manufacturing the same | 12 |
| 2 | US20230126630A1 | Foldable display device | 6 |
| 3 | US20250172970A1 | Foldable display device and method of manufacturing foldable display device | 4 |
| 4 | US20220367822A1 | Foldable display panel with improved impact resistance | 4 |
| 5 | WO2024037327A1 | 折叠显示面板及其制备方法、电子设备 | 1 |
| 6 | US20230306878A1 | Foldable display device and method of manufacturing foldable display device | 1 |
| 7 | US11930656B2 | Foldable display device | 1 |
Citation counts are drawn from a searched corpus and skew toward earlier filings; treat them as a signal of influence on later claim drafting, not a measure of current commercial importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Publication numbers are shown where the record carries one (7 of 7 rows); clicking a row searches Eureka by that number.
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Three read-throughs from the trend, the citation table and the IPC spread, translated into what they imply for anyone deciding where to file next.
A burst, not a build
Filing rose from near-zero to a single peak year and then eased off, rather than climbing steadily. That pattern usually means the core mechanical and fabrication approaches were staked out quickly once rollable and foldable form factors became commercially credible, leaving later entrants to file around already-claimed structures.
The OLED stack itself is fully covered
Every record in this set carries an H10K classification, meaning no filer in this corpus is operating outside the organic-semiconductor display core. New entrants are far more likely to find open space in the surrounding circuit, control and lamination layers than in the OLED stack itself.
One structural approach anchors later drafting
The most-cited record draws twice the citations of the next record, and its claims cover the support-bar-and-hinge mechanism for rollable panels. Later filers appear to be drafting claims that route around, rather than through, that specific mechanical structure.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to foldable display manufacturing process, with the prior art for and against each one.
Who is filing, and where the gaps sit
Recent-year momentum across the named assignees has gone flat, which changes what a new entrant should read into the ranking table below.
Named leaders show no recent filings
Samsung Display, Sharp and Huawei all show zero filings in the latest tracked year in this dataset, with Samsung Display down 100% year over year from its prior level. That does not mean these firms have stopped working on foldables; it means this narrow query is not catching their most recent activity, likely because of publication lag or because recent filings sit in adjacent IPC codes outside this search.
US-centric filing, one PCT route
Fifteen of sixteen families were filed through the United States receiving office, with a single PCT filing. For a global technology like foldable displays, that concentration suggests this dataset captures a US-prosecution slice of a much larger worldwide filing effort rather than the full picture.
A small, sharply scoped set
Sixteen families is enough to see structure but not enough to support fine-grained assignee-versus-assignee comparison. Read the ranking table as an indication of who is active in this specific process-claim niche, not as a market-share figure.
| Assignee | Recent year | YoY |
|---|---|---|
| Samsung Display Co., Ltd. | 0 | -100% |
| Sharp Corporation | 0 | — |
| Huawei Technologies Co., Ltd. | 0 | — |
Where to take this
The trend and the assignee table point to specific next steps depending on whether you are drafting, licensing or scouting.
Check the support-and-hinge claim boundary
The top-cited record's support-bar-and-hinge structure is the closest thing to a foundational claim in this set. Any rollable-panel design should be checked against it before finalising a mechanical approach.
Explore the claim in EurekaLook past H10K for open space
With every record touching the OLED core, the more available claim territory sits in H05K circuit integration, lamination and backplane process steps rather than the display stack itself.
Run a white-space search in EurekaTrack filings the query is missing
Zero recent-year activity from named leaders is more likely a coverage gap than a slowdown. Widening the IPC and keyword scope will surface filings this landscape's narrow query does not catch.
Expand the search in EurekaCommon questions on foldable display manufacturing patents
This landscape is built on H10K (organic semiconductor devices, which covers the OLED stack itself), alongside H05K for printed circuit and assembly integration and H10K59/12 for display-specific structures. Supporting classes include G06F for control logic, G02F for optical modulation, G09F for display and signage structures, H01L for underlying semiconductor devices, and B32B and C08J for laminate and polymer materials used in the flexible layers. Every record in this dataset carries an H10K classification, which confirms the OLED core is the anchor technology and the other classes represent the surrounding manufacturing and integration steps.
Within this dataset the most-cited record, covering a rollable display device and its manufacturing method, draws 12 citations, roughly twice the count of the next most-cited filing. That level of citation concentration suggests its support-bar-and-hinge mechanical approach has shaped how later applicants draft around rollable-panel structures. Citation counts in a searched corpus tend to favour older filings, so this signals historical influence on claim drafting rather than which company is most active today.
No, based on this dataset filing activity peaked in 2023 at 7 records and has eased since, after rising from near-zero earlier in the period. That flat-to-declining pattern, combined with every record already sitting inside the H10K organic-semiconductor class, points to a technology where the core fabrication approaches were claimed quickly rather than one still in an expansion phase. Publication lag of roughly 18 months means the most recent one to two years will always look thinner than they eventually turn out to be, so the true 2024–2026 picture is likely somewhat higher than shown here.
The clearest gaps sit outside the H10K OLED core: lamination and resin-layer bonding, polymer-based backplane substrates, laser lift-off release control, and circuit routing integrated with hinge mechanisms all appear far less frequently than the core organic-semiconductor claims in this dataset. A first claim in one of these areas would likely combine a specific material or process step, such as a resin-layer bonding sequence or lift-off release parameter, with a structural element like a hinge or support-bar assembly, rather than claiming the display stack broadly.
Samsung Display, Sharp and Huawei all show zero filings in the latest tracked year within this specific dataset, with Samsung Display down 100% year over year. This is almost certainly a coverage effect of the narrow search string and IPC scope rather than a real slowdown at these companies: recent filings may sit in adjacent classification codes, use different terminology, or simply not yet be published given the typical 18-month lag between filing and publication. Anyone tracking these specific assignees should widen the query rather than take this figure as evidence of reduced R&D activity.
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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.
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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.