Foldable Display HMI Patents: Who Leads, Where the Gaps Are 2026
- Filing peaked in 2018 at 104 records and has declined since, with the midpoint year 2022 at just 30 — a mature filing wave, not a growing one.
- G06F (electric digital data processing) accounts for 548 of 845 records, meaning most claim activity sits in software-adjacent touch and UI logic rather than in the display stack itself.
- Momentum has gone flat across every major assignee tracked, several once-dominant filers show 0 or -100% year-on-year activity in the latest period.
Filing growth compares 2021 (47 records) with 2024 (12) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 845 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape covers patent families combining foldable or flexible display claims with foldable touch interface or adaptive UI claims — the intersection where hardware flexibility meets touch sensing and interface logic. The corpus spans 845 patent families published between 2015 and mid-2026, concentrated overwhelmingly in filings routed through the United States receiving office, with secondary volume through Europe, WIPO/PCT, Germany, Austria and South Korea.
Publication lags filing by roughly 18 months, so the 2025 and 2026 figures in any trend chart understate real filing activity for those years. Read the recent decline as a floor, not a final verdict — but the multi-year downward slope from the 2018 peak is real and not an artefact of the lag alone.
Filing trend and technology composition
Two views of the same 845-family corpus: how filing activity has moved year over year, and how that activity splits across the IPC subclasses that make up a foldable display HMI stack.
A filing wave that crested in 2018
Filings ran at 62 in 2017, rose to a peak of 104 in 2018, and had fallen to 30 by the 2022 midpoint. The slope since the peak is consistently downward rather than cyclical, which points to a technology area where the core claim space filled early and later entrants found less room to stake new ground.
Software and UI logic dominate over the physical stack
G06F (electric digital data processing) carries 548 of 845 records — nearly two-thirds of the corpus — well ahead of H01L (semiconductor devices, 179) and H10K (organic semiconductors/OLED, 157). G02F, G09F, G09G, H05K and H04M each hold smaller shares, showing that claims cluster on how the interface behaves in software far more than on the physical fold mechanism or panel materials.
Shares are the percentage of the 845 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Foldable Display Human-Machine Interface with Eureka
This page is one run against one query. Ask Eureka your own question about foldable display human-machine interface and every answer comes back with the patent numbers behind it.
Try EurekaThe records this field cites most
Flexible touch panel, flexible display panel and flexible display apparatus, and fabricating method thereof
The present application discloses a flexible display panel having a flexible touch panel and a flexible display module laminated together with the flexible touch panel. The flexible touch panel includes a touch sensor having a plurality of touch electrodes configured to detect a touch, and a capacitive fingerprint sensor having an array of capacitive sensing electrodes configured to enable identification of a fingerprint of a finger.Filed by BOE Technology Group, published 2018-10-25, at the height of the corpus's peak filing year.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20170011210A1 | Electronic device | 978 |
| 2 | US20080303782A1 | Method and apparatus for haptic enabled flexible touch sensitive surface | 678 |
| 3 | US20080180399A1 | Flexible Multi-touch Screen | 380 |
| 4 | US20130002583A1 | Flexible display panel and display apparatus including the flexible display panel | 283 |
| 5 | US20100164888A1 | Display device | 283 |
| 6 | US20100311494A1 | Amusement device including means for processing electronic data in play of a game of chance | 213 |
| 7 | US20100311493A1 | Interprocess communication regarding movement of game devices | 167 |
| 8 | US20100317409A1 | Carbon nanotube based flexible mobile phone | 161 |
| 9 | KR1020130007311A | Flexible display panel and the display apparatus comprising the flexible display panel | 157 |
| 10 | US20150346866A1 | Touch panel | 147 |
Citation counts inside a searched corpus favour older filings by construction — treat these as markers of foundational influence, not of what matters most today.
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Three patterns stand out once family counts, IPC splits and receiving-office data are read together.
The core claim space filled early
A peak in 2018 followed by a steady decline to 30 filings by 2022 suggests the foundational combinations of fold mechanism plus touch sensing were staked out within the first few years of the field's activity. Later filers are working narrower variations rather than opening new ground.
UI and processing logic, not the fold itself, carries the claim volume
G06F outweighs H01L and H10K combined, meaning the densest prior art sits in how software adapts to a folding form factor — gesture handling, layout reflow, adaptive UI states — rather than in hinge mechanics or panel chemistry.
Filing strategy is heavily US-anchored
The United States receives well over four times the next-largest office (EPO). South Korea and Germany each sit at the low end of the tracked offices, which is worth noting given how active Korean and Chinese assignees are in the underlying company data.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to foldable display human-machine interface, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Tsinghua University | Hon Hai Precision Industry Co., Ltd. (Foxconn) | 28 |
| BOE Technology Group Co., Ltd. | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | 17 |
| BOE Technology Group Co., Ltd. | Chengdu BOE Optoelectronics Technology Co., Ltd. | 13 |
| Applied Materials, Inc. | DEPPISCH THOMAS | 6 |
| Applied Materials, Inc. | MORRISON NEIL | 4 |
| Samsung Display Co., Ltd. | Ulsan National Institute of Science and Technology Industry-Academic Cooperation Foundation | 3 |
| BOE Technology Group Co., Ltd. | Beijing BOE Display Technology Co., Ltd. | 3 |
| Applied Materials, Inc. | SCHNAPPENBERGER FRANK | 3 |
Ten co-assignee pairs appear in the data, the strongest a Tsinghua University and Foxconn (Hon Hai Precision Industry) partnership at 28 shared families, followed by two BOE-affiliate pairings — a sign that flexible-display R&D here runs through university-industry and parent-subsidiary structures rather than open cross-licensing.
Who has been filing, and who has stopped
Momentum data tells a different story from raw family counts: several assignees with large historical footprints show little or no activity in the most recent tracked year.
Two of the largest historical filers went to zero
Samsung Display and BOE Technology Group both show 0 filings in the latest year, a -100% year-on-year drop from prior activity. Given publication lag, this likely overstates the real stop — but the direction across multiple large assignees is consistent enough to treat as a genuine slowdown, not noise from one filer.
Even the steadiest filer is pulling back
Semiconductor Energy Laboratory recorded only 1 filing in the latest year against an -80% year-on-year decline, consistent with the broader flattening seen across Samsung Electronics, Sony and Tsinghua University in the same window.
University-industry pairing leads co-filing
The strongest co-assignee pair in the corpus links Tsinghua University with Foxconn (Hon Hai Precision Industry) at 28 shared families, ahead of two BOE-affiliate pairs. This points to joint research programmes feeding directly into filed claims rather than incidental co-ownership.
| Assignee | Recent year | YoY |
|---|---|---|
| Semiconductor Energy Laboratory Co., Ltd. | 1 | -80% |
| Samsung Display Co., Ltd. | 0 | -100% |
| Samsung Electronics Co., Ltd. (Korea) | 0 | — |
| BOE Technology Group Co., Ltd. | 0 | -100% |
| Sony Group Corporation | 0 | — |
| Tsinghua University | 0 | — |
| Applied Materials, Inc. | 0 | — |
| Hon Hai Precision Industry Co., Ltd. (Foxconn) | 0 | — |
Where to take this next
The dataset points to specific next questions rather than a single conclusion — use Eureka to run these against the live patent corpus.
Check whether the 2025-2026 decline is real or a lag artefact
Recent-year counts are structurally understated by publication lag. Rerun the trend query against the freshest data cut before concluding the field is genuinely winding down.
Explore filing trends in EurekaMap claim language inside the G06F cluster
With 548 of 845 records in one IPC subclass, a claim-level breakdown of that cluster would show whether the density is concentrated in a few blocking claims or spread thin across many narrow variations.
Run a claim analysis in EurekaWatch for renewed filing from currently dormant assignees
Several major historical filers show 0 or steep negative momentum. A monitoring alert on these assignees would catch any resumption of filing activity early.
Set up assignee monitoring in EurekaCommon questions about this landscape
In this landscape, a record has to combine claims around a foldable or flexible display with claims around a foldable touch interface, flexible touch panel, or adaptive UI behaviour. A patent that only covers a flexible OLED stack without any touch or interface claim would not qualify, and neither would a general touchscreen patent with no foldable element. The intersection is what narrows the corpus to 845 families rather than the much larger set of flexible-display patents overall.
The data shows 104 filings in 2018 against 62 in 2017 and only 30 by the 2022 midpoint, a pattern typical of a field where early entrants staked out the core combinations of fold mechanism and touch sensing quickly. Once foundational claim space around basic foldable-touch integration was filed, later applicants had less unclaimed ground to work with. Publication lag makes the very latest years look lower than they will eventually settle, but the multi-year downward trend predates the lag window and is not explained by it alone.
The momentum data shows the opposite of an active race: assignees including Samsung Display and BOE Technology Group both dropped to 0 filings in the latest tracked year, and Semiconductor Energy Laboratory fell to 1 filing at an -80% year-on-year decline. Samsung Electronics, Sony and Tsinghua University also register 0 in the latest year. This does not mean these companies have exited the field — filing lag and portfolio strategy shifts can both suppress a single year's count — but it does mean fresh, highly active filers are not visible in this particular dataset window.
The IPC composition points toward thinner claim density in the smaller subclasses relative to the dominant G06F, H01L and H10K cluster — areas such as printed-circuit routing through hinge flex zones, telephonic-device-specific foldable UI under H04M, and display-control circuitry for variable-geometry panels under G09G. These are not empty categories, but they carry a fraction of the filing volume of the core software and semiconductor classes, which is where a narrower, well-drafted claim is more likely to clear prior art.
Citation counts inside any searched corpus mechanically favour older records, since they have had more years to accumulate citations from later filings. The most-cited records here date back as far as 2007-2008, which reflects their age and foundational position more than their current commercial relevance. Use citation rank as a signal of historical influence on the field's vocabulary and claim structure, not as a ranking of what is most valuable to license or design around today.
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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.