Transparent Display Flexible Substrate Patents: Leaders & Gaps 2026
- Filing peaked in 2021 at 23 families, then slid back toward single digits the flat-to-declining trend since the 2022 midpoint of 10 suggests the core claim space is largely staked out rather than still opening up.
- H01L semiconductor-device claims dominate at 44 records well ahead of H10K organic-semiconductor claims (25) and G02F optical-control claims (24), so device-integration claims are the densest prior art to search first.
- The United States leads receiving offices with 60 filings more than triple China's 13, meaning US prosecution history is the first place to check for blocking claims before committing to a filing strategy.
What this landscape covers
Transparent display flexible substrate technology sits at the intersection of transparent OLED and see-through display architectures and the colorless polyimide and flexible transparent film substrates that make them bendable. The dataset tracked here spans 118 patent families published between 2015 and mid-2026, drawn from filings that combine transparent-display claim language with flexible-substrate material claims. Because families rather than raw document counts are used for ranking, the numbers below discount duplicate continuation and multi-jurisdiction filings from the same invention.
Publication typically lags filing by around 18 months, so the most recent year in any trend line understates real filing activity. Read the 2025 and 2026 figures as a floor, not a ceiling, and weight the 2021-2022 peak more heavily when judging where the field's centre of gravity actually sits.
Filing trend and technology composition
Two views of the same 118 families: how filing volume moved year on year, and which IPC subclasses carry the claim density.
A peak in 2021, then a pullback
Filings rose from 4 in 2017 to a peak of 23 in 2021, then eased to 10 by the 2022 midpoint and continued declining toward 2026. That shape is more consistent with a technology that had its land-grab phase already than one still in early growth — new entrants should expect to compete against an established claim map rather than file into open space.
Semiconductor and OLED claims dominate
H01L (semiconductor devices) accounts for 44 of the 118 records, with H10K (organic semiconductors) at 25 and G02F (optical control and modulation) at 24 close behind. G06F and G09F each hold 16, showing meaningful claim activity in data-processing and signage applications built on top of the core display stack, while G02B, B60R and H05K each sit in single digits — B60R's 8 records point to automotive transparent-display integration as a distinct, smaller cluster worth tracking separately.
Shares are the percentage of the 118 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Transparent Display Flexible Substrate with Eureka
This page is one run against one query. Ask Eureka your own question about transparent display flexible substrate and every answer comes back with the patent numbers behind it.
Try EurekaThe records shaping this space
Transparent display panels, display screens, and mask plates
A transparent display panel built from a substrate carrying a first electrode layer, a light-emitting structure layer and a second electrode layer, where the first electrode layer is organised into groups of electrodes running in two intersecting directions, each electrode composed of blocks joined by connecting parts. The structure is representative of how transparent-display claims in this dataset combine electrode patterning with substrate-level construction rather than treating the substrate as an inert carrier.Filed by Suzhou Govisionox Innovation Technology Co., Ltd., published 2021-08-12.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20150232030A1 | Vehicle vision system with display | 290 |
| 2 | US4017848A | Transparent keyboard switch and array | 214 |
| 3 | US10017114B2 | Vehicle vision system with display | 116 |
| 4 | WO2005051525A1 | Permeation barrier coating or layer with modulated properties and methods of making the same | 104 |
| 5 | US4892369A | Holographic rear window stoplight | 61 |
| 6 | US20120113038A1 | Active touch system | 29 |
| 7 | US10315573B2 | Method for displaying information to vehicle driver | 28 |
| 8 | US9429756B1 | Transparent microdisplay in head mountable displays | 27 |
| 9 | US9791694B1 | Transparent film display system for vehicles | 26 |
| 10 | US20150077447A1 | Display panel and method for driving the same,display device | 25 |
Citation counts reflect influence within this searched corpus and skew toward older filings; treat them as a signal of prior-art weight, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the trend, geography and citation data.
The land-grab phase has passed
Filings roughly halved from the 2021 peak to the 2022 midpoint and kept declining toward 2026. New entrants are filing into a claim space that has already been substantially mapped rather than one still expanding, which raises the bar for freedom-to-operate clearance before committing engineering resources.
US prosecution history is the first checkpoint
The United States receives more than three times as many filings as China (13) and more than six times Japan (9). Any freedom-to-operate review for this technology should start with US file histories before extending to EPO's 19 filings or the smaller Asian dockets.
Old vision-system patents anchor the citation graph
The most-cited records in this corpus are vehicle vision-system and permeation-barrier patents predating the current transparent-OLED wave, some dating to the 1970s-2000s. High citation counts here mark foundational prior art, not current state of the art, so citation rank should not be read as a proxy for commercial relevance today.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to transparent display flexible substrate, with the prior art for and against each one.
Who holds the claim space
Assignee activity clusters around a small number of Chinese display manufacturers, with co-filing patterns that reveal internal corporate structure rather than open collaboration.
Filing pairs are mostly parent-subsidiary
The strongest co-assignee pair links BOE Technology Group with its Chengdu BOE Optoelectronics subsidiary at 8 shared filings, with a second BOE-affiliate pair at 2. This is corporate group filing structure, not cross-company collaboration, and should be read that way when assessing competitive alliances.
No assignee shows fresh-year filing activity
Every assignee tracked for recent-year momentum, including BOE Technology Group, its subsidiaries, Kunshan Guoxian Optoelectronics and E Ink, shows zero filings in the latest tracked year. Given the 18-month publication lag, this likely reflects reporting delay rather than a genuine stop in R&D, but it means the most current competitive picture is incomplete by design.
US-heavy filing footprint
The receiving-office split shows US filings well ahead of Europe and China combined among the top three offices, with WIPO PCT and Germany trailing at single digits. Assignees building a defensive or licensing position in this space should weight US prosecution monitoring accordingly.
| Assignee | Recent year | YoY |
|---|---|---|
| E Ink Corporation | 0 | — |
| BOE Technology Group Co., Ltd. | 0 | — |
| Chengdu BOE Optoelectronics Technology Co., Ltd. | 0 | — |
| Yungu (Gu'an) Technology Co., Ltd. | 0 | — |
| Dalian Jisite Technology Co., Ltd. | 0 | — |
| Kunshan Guoxian Optoelectronics Co., Ltd. (Govisionox) | 0 | — |
| Magna Electronics Inc. | 0 | — |
| Saint-Gobain Glass France | 0 | — |
Where to take this
The trend and assignee data point to a maturing claim landscape rather than an open field — the next steps depend on whether you are clearing freedom-to-operate or looking for a filing angle.
Run a freedom-to-operate check on US filings first
With 60 of 118 families directed at the US receiving office, any clearance work should start there before extending to the EPO's 19 filings or China's 13.
Explore prior art in EurekaLook at the under-claimed IPC branches
B60R, G02B and H05K each sit at single-digit record counts against a 44-record H01L core, suggesting narrower but less contested claim territory for a first filing.
Map white space in EurekaCommon questions about this landscape
It is the bendable, optically clear carrier layer beneath a transparent OLED or see-through display stack, typically built from colorless polyimide or a similar transparent flexible film instead of rigid glass. It has to hold electrode and light-emitting layers while remaining transparent and flexible enough to bend or roll without cracking. Applications in this dataset span consumer displays, automotive see-through display panels, and signage, based on the G09F and B60R filing activity alongside the core H01L and H10K device claims.
Filing activity in this dataset concentrates around a small group of Chinese display manufacturers, with BOE Technology Group and its subsidiaries showing the strongest internal co-filing relationship at 8 shared families. Other named assignees include Kunshan Guoxian Optoelectronics, Yungu (Gu'an) Technology, and E Ink. No single assignee shows filing activity in the most recent tracked year across the momentum data, though that likely reflects publication lag rather than an actual halt in R&D.
No, filing volume peaked at 23 families in 2021 and has declined since, falling to 10 by the 2022 midpoint and continuing lower through 2026. That pattern suggests the core claim space around transparent OLED and flexible substrate integration is substantially staked out rather than still expanding. New filers should expect to navigate an established prior-art map rather than file into genuinely open territory, though narrower sub-areas like automotive integration remain comparatively thin.
The most-cited records in this corpus, including vehicle vision-system display patents cited 290 and 116 times and a permeation-barrier coating patent cited 104 times, anchor foundational claim territory that later filings had to design around or license. These older patents cover barrier-layer and vision-system integration concepts broadly enough that they still shape freedom-to-operate analysis today. Because citation counts favour older records, newer but narrower claims on electrode patterning within transparent panels, such as those in the representative Suzhou Govisionox filing, are also worth checking even though they carry fewer citations.
The IPC composition shows a heavy concentration in H01L (44 records), H10K (25) and G02F (24), against much thinner activity in G02B (9), B60R (8) and H05K (8). That gap suggests automotive see-through display integration, printed-circuit interconnects for flexible transparent stacks, and optical-element packaging for transparent modules are comparatively under-claimed relative to the core device and material claims. A first filing targeting the intersection of these thinner branches with the core substrate chemistry has more room to establish novel claim territory than one filed directly into the H01L core.
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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.