Samsung Display v. BOE Technology: OLED Patent Infringement Dismissed With Prejudice
Samsung Display sued BOE Technology and six of its subsidiaries in the Eastern District of Texas, asserting four US patents covering OLED display technology against BOE OLED panels used in devices including the Nubia Z60 Ultra and REDMAGIC 9S Pro. The parties jointly stipulated to dismissal with prejudice after 222 days, with each side bearing its own costs.
OLED patent battle between Samsung Display and BOE ends in confidential resolution
Samsung Display Co., Ltd. filed suit on 17 April 2025 in the Eastern District of Texas against BOE Technology Group and six of its manufacturing and optoelectronics subsidiaries, alleging infringement of four US patents relating to OLED display technology. The accused products include BOE OLED display panels incorporated into consumer devices such as the Nubia Z60 Ultra and REDMAGIC 9S Pro smartphones. The ten-attorney plaintiff team from Covington & Burling and Roth & Abraham faced a defence coalition spanning Findlay Craft, Orrick Herrington and Perkins Coie.
On 25 November 2025, the parties filed a Joint Stipulation of Dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), representing that the case had been ‘resolved’ and requesting dismissal with prejudice. The court accepted and acknowledged the stipulation the same day. Dismissal with prejudice extinguishes all asserted claims permanently — Samsung Display cannot refile the same infringement claims against the same BOE entities based on the same patents. Each party bearing its own fees is a standard term in commercial resolutions and does not indicate which side prevailed financially.
At 222 days, the case resolved well before any claim construction hearing or trial, consistent with a negotiated licence or cross-licence agreement reached after initial discovery pressure rather than full merits adjudication. The explicit ‘case has been resolved’ language in the stipulation strongly suggests a private commercial settlement, though the specific terms — whether financial, licensing, or design-around commitments — are not disclosed in the public record. What remains unknown is whether Samsung Display secured royalties, a forward licence, or product modification commitments from the BOE entities.
Filing to Dismissed with Prejudice in 222 days
222 days — resolved before trial; faster than the E.D. Texas median for multi-patent OLED disputes
Dismissed with prejudice: what the joint stipulation means for both parties
Rule 41(a)(1)(A)(ii) dismissal with prejudice explained
A joint stipulation under Rule 41(a)(1)(A)(ii) requires agreement from all parties and, when filed with prejudice, operates as a final adjudication on the merits. The court has no discretion to refuse it. The ‘resolved’ language in the stipulation indicates the parties reached a private agreement before filing — the dismissal formalises that deal in the public record without disclosing its terms.
Permanent bar on refilingSamsung Display cannot refile — but likely extracted value
Dismissal with prejudice forecloses Samsung Display from reasserting these four patents against the same BOE entities on the same accused products. However, the ‘resolved’ characterisation strongly suggests Samsung obtained something of commercial value — whether a licence, royalty stream, or design-change commitment — before agreeing to the permanent bar. The patents themselves remain valid and enforceable against third parties.
Patents remain live vs. othersBOE and subsidiaries clear immediate litigation exposure
All seven BOE entities — including manufacturing subsidiaries in Mianyang, Ordos, Chengdu, Chongqing, Wuhan, and Yunnan — are released from the asserted claims. Dismissal with prejudice provides certainty that these specific claims cannot be revived. However, BOE’s broader patent exposure under Samsung Display’s extensive OLED portfolio is unresolved, and future assertions on related patents or next-generation products remain possible.
Subsidiary exposure clearedOLED supply chain actors face continued Samsung IP pressure
This case signals that Samsung Display is actively enforcing its OLED patent portfolio against Chinese panel manufacturers supplying premium Android devices. Device makers sourcing OLED panels from BOE — including brands using the Nubia and REDMAGIC supply chain — should treat this resolution as evidence of ongoing licensing dynamics rather than patent clearance. A confidential resolution preserves Samsung’s ability to pursue parallel enforcement in other jurisdictions.
Active enforcement postureFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Samsung Group | Company | Display panel manufacturer and OLED IP licensor — holder of US10439015B2 and three further OLED patentsSearch in Eureka ↗ |
| Defendant | BOE Technology Group Co., Ltd. | Company | BOE Technology Group Co., Ltd. — Chinese display manufacturer and OLED panel supplier to global device makersSearch in Eureka ↗ |
| Plaintiff counsel | Amanda Aline Abraham | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Brian Bieluch | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Daniel W. Cho | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Jared Frisch | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Jeffrey Lerner | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Jesse Chang | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Kee Young Lee | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Robert Thomas Haslam , III | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Sean Hong | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff counsel | Tarek Austin | Attorney | Counsel for Samsung GroupSearch in Eureka ↗ |
| Plaintiff law firm | Covington & Burling LLP | Law Firm | Representing Samsung GroupSearch in Eureka ↗ |
| Plaintiff law firm | Covington & Burling, LLP (Palo Alto) | Law Firm | Representing Samsung GroupSearch in Eureka ↗ |
| Plaintiff law firm | Covington & Burling, LLP (Washington DC) | Law Firm | Representing Samsung GroupSearch in Eureka ↗ |
| Plaintiff law firm | Roth & Abraham, PLLC | Law Firm | Representing Samsung GroupSearch in Eureka ↗ |
| Defendant counsel | Abigail Ann Gardner | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Christopher G Hanewicz | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Eric Hugh Findlay | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Jason Yu | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | John Dudley Esterhay | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Kyle Ryan Canavera | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant counsel | Stuart Hene | Attorney | Counsel for BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Findlay Craft PC | Law Firm | Representing BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Orrick, Herrington & Sutcliffe LLP | Law Firm | Representing BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Perkins Coie, LLP (San Diego) | Law Firm | Representing BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Perkins Coie LLP | Law Firm | Representing BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | Perkins Coie LLP (San Diego) | Law Firm | Representing BOE Technology Group Co., Ltd.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order mirrors the joint stipulation verbatim, confirming this was a consensual, court-endorsed resolution rather than a judicial determination on the merits. The explicit ‘case has been resolved’ recital in the parties’ own language is significant — courts and practitioners read this as confirmation of a private agreement. The mutual cost-bearing term is standard in commercial patent settlements and does not indicate which party conceded more ground. The dismissal’s scope covers all claims and causes of action, leaving no residual claim alive in this forum.
US10439015B2, US11574990B2, US10013088B2 & US11574991B2 — OLED display technology
The four asserted patents — US10439015B2, US11574990B2, US10013088B2, and US11574991B2 — are US-granted utility patents filed across application numbers US15/838138, US17/853551, US15/133605, and US17/871618, covering distinct aspects of OLED display architecture. The patents span multiple filing generations, with the earlier applications dating to the mid-2010s and the later continuation applications filed in 2022, suggesting an active prosecution strategy designed to maintain and extend coverage as OLED technology matured.
Samsung Display holds one of the largest OLED patent portfolios globally, and these four patents appear directed at display panel construction and driving methods central to high-refresh, thin-form-factor OLED panels used in premium Android smartphones. BOE’s growing share of the global OLED supply market — particularly for devices competing with Samsung’s own Galaxy line — makes these patents commercially significant well beyond the two accused device models. Any panel manufacturer or device OEM sourcing OLED displays from BOE should treat this portfolio as an active enforcement risk.
Should you run an FTO against US10439015B2 and the three co-asserted OLED patents?
Any company designing, importing, or distributing products incorporating BOE OLED panels — or developing competing OLED display technology — should consider a freedom-to-operate analysis against Samsung Display’s asserted portfolio. The four patents cover foundational OLED panel architecture and driving circuits, meaning exposure is not limited to finished smartphones. Display module integrators, component distributors, and device OEMs all sit within the potential claim scope, particularly where US sales are involved.
PatSnap Eureka’s FTO Search Agent can map your product’s OLED display architecture against the claim landscapes of US10439015B2, US11574990B2, US10013088B2, and US11574991B2 in a fraction of the time required for manual prosecution history review. Eureka surfaces related Samsung Display continuations and divisionals automatically, helping R&D and IP teams identify design-around opportunities and flag the highest-risk claim elements before product launch or supply agreement execution.
Run a freedom-to-operate analysis on US10439015B2 to assess your product’s exposure
Run FTO in Eureka →Similar OLED display patent cases in the Eastern District of Texas
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What this case signals for the OLED display IP landscape
Samsung Display’s E.D. Texas filing against BOE and six subsidiaries reflects a coordinated enforcement strategy targeting the Chinese OLED supply chain at scale.
E.D. Texas remains the venue of choice for OLED patent enforcement
Samsung Display’s choice of the Eastern District of Texas — a historically plaintiff-friendly forum with fast dockets — signals deliberate venue strategy. Companies in the OLED supply chain should monitor filings in this district as an early indicator of Samsung Display’s licensing demands, particularly where BOE panels are incorporated into US-market devices.
Subsidiary naming is a pressure multiplier in complex supply chains
By naming all seven BOE manufacturing entities individually, Samsung Display maximised litigation burden and settlement leverage. This tactic is increasingly common in display and semiconductor patent disputes. Suppliers and device makers should ensure indemnification provisions in component supply contracts explicitly cover subsidiary-level patent assertions in US courts.
Samsung v BOE — key questions answered
Samsung Display asserted four US patents: US10439015B2, US11574990B2, US10013088B2, and US11574991B2. All relate to OLED display technology and were asserted against BOE OLED panels incorporated into products including the Nubia Z60 Ultra and REDMAGIC 9S Pro devices.
Dismissal with prejudice under Rule 41(a)(1)(A)(ii) permanently extinguishes all claims Samsung Display asserted against the seven named BOE entities in this action. Samsung Display cannot refile the same patent claims against the same defendants based on the same accused products. The four patents, however, remain valid and enforceable against other parties.
The joint stipulation states the case was ‘resolved’ before requesting dismissal with prejudice, which strongly suggests a private commercial agreement — consistent with a licensing deal or cross-licence. However, the specific settlement terms, including any financial consideration or licence scope, are not disclosed in the public court record.
Naming manufacturing subsidiaries — including entities in Mianyang, Ordos, Chengdu, Chongqing, Wuhan, and Yunnan — is a common litigation strategy to maximise settlement pressure and ensure any injunctive relief or damages award reaches the entities directly responsible for infringing manufacture. It also prevents defendants from restructuring to avoid a judgment against the parent company.
The Eastern District of Texas is historically a plaintiff-favoured patent litigation forum known for relatively fast scheduling, experienced patent juries, and a docket that produces early settlement pressure. Samsung Display’s choice of E.D. Texas is consistent with an enforcement-oriented strategy designed to maximise the likelihood of a favourable pretrial outcome or early resolution, particularly against foreign defendants with significant US sales.
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