 |
| (Source: SK Materials JNC) |
The Korean Intellectual Property Office (KIPO) has issued office actions for eight OLED-related patent applications jointly filed by LG Display and SK Materials JNC in May 2021, notifying the applicants of preliminary rejections. The notifications, delivered between mid- and late May 2025, set out specific grounds for rejecting each of the applications.
The co-applicants may respond by submitting arguments or claim amendments to address the examiner's objections. After reviewing the responses, KIPO examiners will determine whether to grant or finally reject the patents—a routine step in the Korean patent examination process.
The joint applications were filed on May 2021 and entered examination in April 2024, just within the three-year window allowed under Korean patent law for requesting substantive examination. All eight filings share the title "Organic Light Emitting Device" and are identified by application numbers 10-2021-0063690 through 10-2021-0063696 (excluding 0063697 and 0063698).
The inventions describe improvements in OLED efficiency and operational lifetime through optimized emissive and electron-blocking layer compositions. Specifically, the filings disclose a deuterated anthracene-based host and a boron-based dopant in the emissive layer, supplemented by amine-based electron blocking materials. The material composition strongly suggests a red OLED application.
According to its website, SK Materials JNC positions itself as holding core IP in boron-family "blue dopant" technology and is expanding into common OLED layers such as HTL and ETL.
By PatenTrip
Comments
Post a Comment