Short answer: Samsung’s OLED dispute with BOE involved two separate U.S. International Trade Commission investigations. Samsung’s patent case ultimately ended with a March 2025 finding of no violation. In a separate trade-secret case, an administrative law judge issued a July 2025 initial determination finding a violation and recommending import restrictions—but that was not, by itself, an immediately effective or permanent U.S. import ban.
The headline needs an update
Reports in November 2024 described Samsung Display as winning an ITC patent fight against China-based display maker BOE. The official record later produced a more complicated result: the patent proceeding and the trade-secret proceeding were separate cases with different legal theories and outcomes.
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For readers trying to determine whether BOE OLED panels or phones were barred from entering the United States, the key distinction is between an administrative law judge’s initial determination and a final Commission action. The available record reviewed for this article does not establish a final disposition of the trade-secret investigation after the July 2025 initial determination.
The two investigations
| Investigation | Legal theory | What it covered | Verified result |
|---|---|---|---|
| 337-TA-1351 | Patent infringement under Section 337 | Active-matrix OLED panels, modules and components for mobile devices | The March 19, 2025 remand final determination found no violation and terminated the investigation. |
| 337-TA-1378 | Trade-secret misappropriation under Section 337 | OLED display modules, panels and components associated with BOE entities | A July 11, 2025 initial determination found a violation and recommended exclusionary remedies. |
The investigations should not be combined into a single “Samsung won the patent case” narrative. The USITC’s 337-TA-1351 record identifies the patent case’s later no-violation result. The trade-secret ruling appears in a separate July 2025 USITC notice.
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What Samsung alleged in the patent case
Samsung Display’s 337-TA-1351 complaint concerned alleged infringement of four U.S. patents covering active-matrix OLED display panels and modules:
- U.S. Patent No. 9,818,803
- U.S. Patent No. 10,854,683
- U.S. Patent No. 7,414,599
- U.S. Patent No. 9,330,593
The complaint alleged that covered OLED products were imported, sold for importation, or sold in the United States after importation. The ITC instituted that investigation on February 3, 2023, after Samsung filed its complaint on December 28, 2022. The institution notice provides the asserted patents and product description.
An administrative law judge issued an initial determination in January 2024 finding that Samsung lacked constitutional standing in the patent case. The proceeding then continued through a remand process. Although November 2024 coverage characterized the case as a Samsung patent win, the Commission’s March 19, 2025 final action found no Section 337 violation and terminated the remand investigation.
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What happened in the trade-secret case
The separate 337-TA-1378 investigation concerned Samsung’s allegations that BOE entities misappropriated OLED manufacturing trade secrets. The case named multiple BOE subsidiaries and BOE Technology America and covered OLED panels, modules and components. The USITC investigation notice describes the proceeding.
On July 11, 2025, an ITC administrative law judge issued a final initial determination finding a Section 337 violation. According to the USITC notice, the ALJ found that Samsung had established:
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- ownership of at least one protectible trade secret;
- importation of covered OLED products;
- use of at least one Samsung trade secret in making imported products;
- misappropriation by the respondents; and
- injury or threatened substantial injury to a U.S. domestic industry.
The ALJ also rejected BOE’s arguments that the relevant information had been independently developed or could be derived from public sources. This is the strongest documented Samsung victory in the supplied record, but it was a trade-secret determination—not the final outcome of the earlier patent case.
Was a U.S. import ban imposed?
Not as a result of the patent proceeding. The final result in 337-TA-1351 was a finding of no violation, so that case did not produce the Samsung-backed exclusion remedy suggested by the earlier headline.
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In 337-TA-1378, the ALJ recommended:
- a limited exclusion order;
- cease-and-desist orders against each respondent;
- a 100% bond during the presidential-review period; and
- a certification provision for products shown to have been manufactured without the misappropriated trade secrets.
Those were recommendations in an initial determination. They did not, by themselves, prove that a permanent exclusion order was already in force. The Commission could review, affirm, modify or reverse the determination, and any exclusionary relief would also be subject to the applicable presidential-review process.
A June 26, 2025 notice said the target date for the 1378 investigation had been extended to November 3, 2025. The authoritative materials supplied for this article do not establish the investigation’s final Commission disposition as of the record reviewed on August 18, 2026. That status should not be presented as a confirmed final import ban.
Which products could be affected?
The notices describe OLED display modules, panels and components, particularly products associated with mobile devices. They do not establish that every BOE OLED product, every BOE panel, or every finished smartphone containing a BOE panel would automatically be excluded.
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A limited exclusion order is generally tied to specified products and respondents. Its practical scope depends on the final order’s wording, including covered models, manufacturing processes, subsidiaries and certification requirements. A restriction on an OLED module also does not automatically establish that every phone, tablet or replacement screen containing such a module is barred.
Several situations could require product-specific analysis:
- a phone assembled outside China could still contain an excluded BOE panel or component;
- a BOE subsidiary could be covered differently from another corporate entity;
- a redesigned product might not use the disputed trade secret;
- an importer might rely on a certification provision; and
- aftermarket replacement displays could raise different scope questions from original-equipment modules.
How an ITC exclusion order works
- Initial determination: An administrative law judge decides the merits and recommends possible relief.
- Commission review: Parties may petition for review. The full Commission can affirm, modify or reverse the determination.
- Presidential review: If the Commission issues exclusionary relief, the President has a statutory review period.
- Customs enforcement: U.S. Customs and Border Protection administers an effective exclusion order at the border.
- Scope decisions: Product redesigns, certifications, corporate entities and particular imports can affect whether a shipment falls within the order.
This process is why “the ITC banned BOE displays” is too broad unless supported by a final Commission order that is in effect and clearly covers the relevant product.
Why the distinction matters
For smartphone manufacturers, repair businesses and supply-chain participants, the commercial question is not simply whether Samsung prevailed on one legal claim. It is whether a final order covers a particular panel, module, component, importer or finished device, and whether the order remains subject to review or has been narrowed by redesign, certification, settlement or licensing.
The case could also affect sourcing decisions if a final exclusion order were issued, but the supplied record does not establish the size of any market impact, whether Samsung ended commercial relationships with BOE, or whether another supplier benefited. Those are separate commercial claims that require company disclosures or reliable industry evidence.
Timeline
- December 28, 2022: Samsung Display filed the complaint leading to 337-TA-1351.
- February 3, 2023: The ITC instituted the patent investigation.
- December 6, 2023: The ITC instituted 337-TA-1378, the trade-secret investigation.
- January 9, 2024: An ALJ issued an initial determination finding Samsung lacked constitutional standing in the patent case.
- November 2024: Coverage reported an apparent Samsung patent win while the proceedings were still developing.
- March 19, 2025: The patent case’s remand final determination found no violation and terminated the investigation.
- July 11, 2025: The ALJ issued the trade-secret case’s final initial determination finding a violation and recommending exclusionary relief.
- November 3, 2025: The extended target date identified in a June 2025 notice for the 1378 investigation.
Bottom line
Samsung’s BOE OLED dispute did not produce one simple patent-case victory and immediate U.S. ban. The patent proceeding, 337-TA-1351, ultimately ended with no violation. The separate trade-secret proceeding, 337-TA-1378, produced a significant July 2025 initial determination in Samsung’s favor and recommended import restrictions, but the materials reviewed do not establish that a final, enforceable blanket ban on BOE OLED products or BOE-equipped phones was issued.
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