Transparent Display Patents: Who Leads, Where the Gaps Are 2026
- Filings peaked in 2021 at 211 and have declined since, with the most recent full year sitting well below that high-water mark — a sign claim space is consolidating rather than expanding.
- Momentum has reversed across nearly every major filer, with year-over-year drops of -57% to -100% among the assignees that once drove the field, including two majors that filed zero in the latest year.
- H01L and H10K together account for the bulk of records, showing that transparent electrode and OLED substrate integration — not display control circuitry — is where the claim density actually sits.
Filing growth compares 2021 (211 records) with 2024 (100) — 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 1,558 records in scope (CR5), not by the ranked leaders only.
What the filing record shows
Transparent display manufacturing sits at the intersection of OLED fabrication and semiconductor patterning, and the patent record reflects that split: H01L (semiconductor devices) and H10K (organic semiconductors) dominate the IPC composition, well ahead of display-control and optical-modulation classes. That balance suggests the harder, more contested engineering problem is getting a transparent electrode and TFT backplane to coexist on one substrate, not driving what appears on the screen once built.
The filing curve rose through the late 2010s, peaked in 2021, and has fallen in every year since, including a sharp drop into the most recent partial year — publication lag of roughly 18 months means the last one or two years will read higher once the backlog clears, but the downward trend from 2022 onward predates that lag.
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Filing trend and technology composition
Two views of the same 1,558-family dataset: how filing activity has moved year over year, and which IPC subclasses carry the claim weight.
A peak in 2021, then a steady decline
Filings ran from 71 in 2017 up to a peak of 211 in 2021, held near that level through 2022 at 190, then declined through the latest years — a pattern consistent with a technology whose core fabrication claims are largely staked out rather than one still in early growth.
Semiconductor and OLED classes dominate
H01L (741 records) and H10K (691) lead by a wide margin over G09G (208), G02F (193), G02B (183) and G06F (166), confirming that the contested ground is the transparent electrode and backplane fabrication process, not the software or optics layered on top.
Shares are the percentage of the 1,558 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Transparent Display Manufacturing Process with Eureka
This page is one run against one query. Ask Eureka your own question about transparent display manufacturing process and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative filing and most-cited prior art
OLED pixel unit, transparent display device, method for fabricating the same, display apparatus (US20170084572A1)
An OLED pixel unit is disclosed, which comprises an opaque region and a transparent region arranged side by side, where the opaque region carries an opaque display element and the transparent region carries at least one transparent display element. Independent operation of the two elements is achieved without affecting transparency, increasing pixel unit resolution. A transparent display device using this pixel unit, a fabrication method, and a display apparatus are also disclosed.Filed by BOE Technology Group; illustrates the side-by-side opaque/transparent pixel architecture that recurs across the corpus.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US8179381B2 | Touch screen sensor | 600 |
| 2 | US5250931A | Active matrix panel having display and driver TFT's on the same substrate | 393 |
| 3 | US20090219257A1 | Touch screen sensor | 323 |
| 4 | US20110207328A1 | Methods and apparatus for the manufacture of microstructures | 263 |
| 5 | US20090219258A1 | Touch screen sensor with low visibility conductors | 244 |
| 6 | US20100243295A1 | Nanowire-based transparent conductors and applications thereof | 214 |
| 7 | US20210065625A1 | Display Substrate and Driving Method Thereof, and Display Device | 190 |
| 8 | US20170125506A1 | Electro-luminescence display apparatus | 167 |
| 9 | US20130207911A1 | Mesh patterns for touch sensor electrodes | 142 |
| 10 | US20100202725A1 | Laser illumination device | 139 |
Citation counts favour older filings that have had more time to accumulate references; treat this as a map of influential prior art, not of current activity.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for a filing decision
Three patterns stand out once family counts, IPC composition and momentum are read together.
The growth phase has passed
Filings climbed steadily to a 2021 peak of 211, held near that level in 2022 at 190, then fell in every subsequent year. That shape — rise, plateau, decline — usually marks a field where the core fabrication routes have been claimed and remaining filings are incremental.
Substrate integration, not display logic, is the battleground
H01L and H10K combined outnumber every display-control and optics subclass. New entrants competing on transparent electrode deposition or OLED patterning are stepping into the densest part of the landscape; those working on control circuitry face comparatively lighter prior art.
Even the largest filers have pulled back
Assignee-level momentum shows steep year-over-year declines across the board, including two major filers at zero in the latest year. This is not one company exiting; it is a field-wide slowdown in new filing activity from the assignees that built the current landscape.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to transparent display manufacturing process, with the prior art for and against each one.
Who holds the claim space
Filing activity concentrates around a small number of assignees with dense internal co-filing networks, alongside a long tail of single-filing entrants.
One corporate family dominates co-assignment
The strongest co-assignee pairs in this dataset all trace back to the same corporate group filing jointly with its subsidiaries, with the top pair sharing 83 records. That pattern points to internal IP structuring across affiliated entities rather than cross-company collaboration.
Slowdown is the shared condition, not the exception
Even the assignee with the smallest year-over-year decline is still contracting. No major filer in this dataset is currently expanding its transparent display manufacturing filings.
Filing strategy is heavily US-first
The receiving-office split shows the United States taking the large majority of filings, with Europe and the PCT route a distant second and third. Entities filing only regionally in Germany, Austria or India sit well behind this main flow.
| Assignee | Recent year | YoY |
|---|---|---|
| OTI Lumionics | 3 | -57% |
| BOE Technology Group Co., Ltd. | 1 | -90% |
| Samsung Display Co., Ltd. | 0 | -100% |
| LG Display Co., Ltd. | 0 | -100% |
| Facebook Technologies, LLC | 0 | — |
| Hefei BOE Zhuoyin Technology Co., Ltd. | 0 | -100% |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 0 | -100% |
| 3M Innovative Properties Company (USA) | 0 | — |
Where to take this analysis
The filing and assignee patterns above set the boundaries; the next step is testing a specific claim or process route against them.
Check freedom-to-operate on a specific fabrication step
Run the transparent electrode deposition or OLED patterning step you are developing against the dense H01L/H10K core identified here before committing engineering time.
Explore in EurekaTrack assignee momentum going forward
With most major filers in decline, a shift back to growth from any one of them is an early signal worth monitoring rather than a one-off data point.
Set up monitoring in EurekaDraft around the under-claimed branches
The gate chips above point to sub-areas with thinner coverage; a first-filed claim there faces less prior art than one in the core substrate-integration space.
Draft claims in EurekaCommon questions on transparent display manufacturing patents
Filing activity concentrates around a small number of large display manufacturers and their subsidiaries, with the strongest co-assignee links running between a parent company and its affiliated production entities rather than between unrelated firms. Momentum has slowed across nearly all of these leading filers in the most recent year, with several recording zero new filings. This makes current market share a poor predictor of future filing direction, since the leaders that built the landscape are not the ones currently expanding it.
The filing trend rose to a peak of 211 in 2021, held near that level in 2022, and has fallen in every year since. This shape typically indicates that the core fabrication routes — transparent electrode deposition, OLED patterning, TFT backplane integration — have already been claimed by early movers, leaving less open ground for new filings. Some of the apparent decline in the most recent one to two years is also a publication-lag artefact, since filings take roughly 18 months to appear in the public record.
H01L (semiconductor devices) and H10K (organic semiconductors) together account for the largest share of records, well ahead of display-control circuitry (G09G) and optical modulation (G02F, G02B). This means the densest prior art sits in substrate and electrode fabrication, not in how the display is driven or optically tuned. Anyone filing in transparent electrode deposition or OLED patterning should expect to search against this denser core first.
US20170084572A1, assigned to BOE Technology Group, discloses an OLED pixel unit with an opaque region and a transparent region arranged side by side, each carrying its own display element that can operate independently without degrading the transparent region's see-through quality. The filing also covers a transparent display device built from this pixel unit, a fabrication method, and a display apparatus. For anyone designing a side-by-side opaque/transparent pixel architecture, this filing is a starting point for a freedom-to-operate check rather than a blocking patent in isolation, since claim scope needs to be read against the specific patterning and drive-circuit language.
The IPC composition shows comparatively thin coverage in specific sub-areas relative to the dense H01L/H10K core, including flexible transparent electrode patterning, transparent TFT backplane yield processes, and low-haze transparent conductive oxide deposition. These are not unclaimed entirely, but they carry materially less filing density than core substrate integration. A first claim in one of these branches faces less prior art congestion than an equivalent claim on core electrode or OLED fabrication steps.
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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.