Transparent Display Materials Patents: Leaders & White Space 2026
- Filing has cooled after a 2022 peak. 390 families that year against 194 in 2017, with the trend now flat to declining and the latest partial year understated by publication lag.
- Filing sits almost entirely with a handful of display makers. co-assignee links point to tight corporate filing clusters rather than broad industry participation, and momentum by assignee has swung sharply negative in the latest year across the leading filers.
- Semiconductor and OLED device classes dominate the claim space. H01L and H10K together account for the bulk of records, while signage and video-communication classes remain comparatively thin.
Filing growth compares 2021 (357 records) with 2024 (267) — 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 3,298 records in scope (CR5), not by the ranked leaders only.
What the filing record shows
Transparent display advanced materials sit at the intersection of thin-film transistor design, transparent conductive layers and emissive OLED stacks. The dataset covers 3,298 patent families published between 2015 and mid-2026, built from claims and abstracts referencing transparent display, transparent OLED or see-through display structures alongside transparent conductive, transparent emissive or high-transmittance materials. Filing activity rose through the late 2010s, peaked in 2022 at 390 families, and has since flattened or declined — a pattern consistent with a technology whose core material routes are now well staked out rather than one still in an early land-grab phase.
Filing concentrates heavily in semiconductor device structures and organic semiconductor stacks, with optical control, digital processing and display-control circuitry forming a secondary tier. Signage and video-communication applications remain comparatively lightly filed, suggesting the core contest is still happening at the materials and device-architecture level rather than in end-use integration.
Filing trend and technology composition
Two views of the same 3,298-family dataset: how filing volume has moved year over year, and how it splits across the IPC subclasses that make up the transparent display materials space.
A peak year followed by a cooling trend
Filings climbed from 194 in 2017 to a peak of 390 in 2022, then eased off. Because publication typically lags filing by around 18 months, the most recent years – including the 4 records logged so far in 2026 – understate real filing activity and should not be read as a genuine collapse in interest.
Semiconductor and OLED classes carry the weight
H01L (semiconductor devices) and H10K (organic semiconductors including OLED) lead with 1,319 and 1,114 records respectively, followed by G02F (optical control and modulation) at 821. G09F (displaying, advertising and signs) and H04N (pictorial communication) trail well behind at 124 and 120, marking the application layer as the thinner side of the claim map.
Shares are the percentage of the 3,298 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Transparent Display Advanced Materials with Eureka
This page is one run against one query. Ask Eureka your own question about transparent display advanced materials and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Transparent display assembly and display device (US20170200424A1)
The filing describes a transparent display assembly with a light-emitting front face and an opposing back face carrying a light adjustment structure. In display mode, that structure blocks background light from passing through the panel; in non-display mode, it allows background light through, letting the panel function as a see-through surface when not actively showing an image.Filed by BOE Technology Group, published 2017-07-13.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20020056838A1 | Thin film transistor array, method of producing the same, and display panel using the same | 4,439 |
| 2 | US20070054507A1 | Method of fabricating oxide semiconductor device | 4,273 |
| 3 | US7468304B2 | Method of fabricating oxide semiconductor device | 4,022 |
| 4 | US20040252867A1 | Biometric sensor | 852 |
| 5 | US6356376B1 | Electrochromic rearview mirror incorporating a third surface metal reflector and a display/signal light | 810 |
| 6 | US6700692B2 | Electrochromic rearview mirror assembly incorporating a display/signal light | 567 |
| 7 | US5739545A | Organic light emitting diodes having transparent cathode structures | 518 |
| 8 | US6512624B2 | Electrochromic rearview mirror incorporating a third surface partially transmissive reflector | 483 |
| 9 | US20140217373A1 | Flexible display substrate, flexible organic light emitting display device and method for manufacturing the s… | 399 |
| 10 | US20140217397A1 | Flexible display substrate, flexible organic light emitting display device and method of manufacturing the sa… | 395 |
Citation counts accumulate over time and favour older filings; treat them as a measure of influence within this corpus, not as a signal of which claims matter most today.
Each row carries its publication number; clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →What the numbers mean for a filing decision
Three patterns stand out once the trend, technology split and citation data are read together.
The growth phase has already happened
Filing rose steadily from 194 families in 2017 to a peak of 390 in 2022, then flattened. A partial, publication-lag-affected 2026 should not be read as collapse, but the multi-year plateau before it indicates the core material and architecture claims are now largely staked.
Device architecture is dense, applications are thin
Semiconductor device structures (H01L) and OLED-specific stacks (H10K) carry the bulk of filing volume. Signage and advertising applications (G09F) and video communication (H04N) are an order of magnitude smaller, pointing to where integration claims remain comparatively open.
Foundational TFT and oxide-semiconductor art still anchors the field
The most-cited records in the corpus are early thin-film-transistor array and oxide semiconductor fabrication patents, not recent transparent-display-specific filings. That is typical of a citation-weighted view inside a searched corpus and reflects influence accumulated over time rather than current filing priority.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to transparent display advanced materials, with the prior art for and against each one.
Who is filing, and how that has shifted
Ownership in this dataset is concentrated among a small set of display manufacturers, with a long tail of single- or few-filing entrants around them.
BOE's filing runs through affiliated entities
The strongest co-assignee link in the dataset pairs BOE Technology Group with a Chengdu-based BOE optoelectronics affiliate at 69 shared families, with further links to Hefei-based BOE subsidiaries. This is typical of a large group filing through regional manufacturing arms rather than a single corporate entity.
Every major filer has pulled back sharply in the latest year
Samsung Display, LG Display, BOE, Japan Display, Apple and Samsung Electronics all show steep year-on-year declines in the most recent year, several down to zero. Given the roughly 18-month publication lag, this likely overstates any real pullback, but it does confirm no single assignee is currently accelerating.
Filing strategy is US-weighted with a secondary European and PCT layer
The United States receives more than five times the filings of the European Patent Office, with WIPO PCT, Germany, Austria and India forming a smaller secondary tier. That pattern points to the US as the primary commercial battleground for these claims.
| Assignee | Recent year | YoY |
|---|---|---|
| Samsung Display Co., Ltd. | 3 | -96% |
| LG Display Co., Ltd. | 0 | -100% |
| BOE Technology Group Co., Ltd. | 0 | -100% |
| Japan Display Inc. | 0 | -100% |
| Apple Inc. | 0 | -100% |
| Samsung Electronics Co., Ltd. (Korea) | 0 | -100% |
| Semiconductor Energy Laboratory Co., Ltd. | 0 | -100% |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 0 | -100% |
Where to take this analysis
The trend and ownership data point to a mature core with pockets still open at the application layer.
Map freedom-to-operate against the US filing cluster first
With 2,218 of the records filed in the United States against 425 at the EPO, any clearance work should start there before extending to Europe, Germany, Austria or India.
Explore the assignee ranking in EurekaWatch whether the 2026 pullback is real or a lag artefact
Every leading assignee shows a steep year-on-year decline in the latest partial year. Confirm this against later-published data before treating it as a genuine slowdown in transparent display material R&D.
Track filing trends in EurekaTest claim strength in the under-claimed application classes
G09F and H04N carry far fewer filings than H01L and H10K. Before assuming white space, check whether that gap reflects low commercial interest or an opening for new claims.
Run a claim-scope search in EurekaCommon questions about transparent display material patents
Filing in this dataset is concentrated among major display manufacturers, with BOE Technology Group and its regional affiliates forming the strongest co-filing cluster at up to 69 shared families. Samsung Display, LG Display, Japan Display, Apple and Samsung Electronics also appear among the more active filers, though all show sharp declines in the latest recorded year. Because BOE files through several regional subsidiaries, its true combined filing volume is easy to undercount if each entity is checked in isolation.
Filing rose from 194 families in 2017 to a peak of 390 in 2022, then flattened or declined through the most recent years. Publication typically lags filing by around 18 months, so the low count in the latest partial year overstates any real slowdown. Taken together, the pattern looks like a technology moving from active buildout into a more settled, incrementally-filed phase rather than one that has stopped attracting investment.
Semiconductor device structures (IPC class H01L) and organic semiconductor stacks including OLED (H10K) account for the largest share of filings, at 1,319 and 1,114 records respectively. Optical control and modulation (G02F) forms a secondary tier at 821 records, while display-control circuitry, digital processing and optical elements round out the mid-tier. Application-layer classes such as signage (G09F) and video communication (H04N) are comparatively thin, suggesting the densest competition is at the device and materials level rather than in end-use products.
The clearest gaps sit in application-layer integration rather than core device architecture: transparent electrode patterning for signage, see-through display interfaces for video communication, high-transmittance encapsulation for outdoor signage use, and color-filter-free transparent OLED emissive stacks are all comparatively lightly filed relative to H01L and H10K. A thin subclass does not automatically mean an open opportunity, since it can also reflect low commercial demand, so any white-space claim should be checked against market interest and existing assignee filings before committing resources.
US20170200424A1, filed by BOE Technology Group, describes a transparent display assembly with a light adjustment structure on the back face of the panel that blocks background light during active display mode and allows it through when the panel is not displaying an image. This specific two-mode light-blocking architecture is what the claims protect, not the general concept of a transparent display. Designs using different mechanisms for controlling background light transmission, or that do not rely on a discrete back-face light adjustment layer, would sit outside this particular filing's claim scope, though a full freedom-to-operate check should look at BOE's broader affiliated filing cluster as well.
Research Transparent Display Advanced Materials in depth with Eureka
Go past this page: query the whole transparent display advanced materials corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.