Short Summary
BOE has filed an IPR petition challenging Samsung Display's OLED pixel‑circuit patent (US 11,574,991). The petition asserts obviousness over multiple prior‑art references covering TFT layouts, capacitor structures, and pixel designs. Detailed claim‑by‑claim analyses are provided to support unpatentability under 35 U.S.C. §103.
Detailed Summary
In Petition IPR2025‑01479, BOE Technology Group Co., Ltd. seeks inter‑partes review of Samsung Display Co., Ltd.'s U.S. Patent No. 11,574,991, which claims an organic light‑emitting diode (OLED) display with a complex arrangement of thin‑film transistors, voltage lines, scan lines, data lines, and storage capacitors. The petitioner contends that each of the thirty claims is obvious in view of a combination of prior‑art references—including Liu, Udagawa, Nakayama, Chung, Murade, Noguchi‑I, Kim, Noguchi‑II, and Jeong—by demonstrating that a person of ordinary skill would have been motivated to combine these teachings to achieve the claimed structures. The petition provides exhaustive claim‑by‑claim mappings, motivation‑to‑combine arguments, and references to the petitioner’s expert declaration, aiming to render the claims unpatentable under 35 U.S.C. §103. No claim constructions are asserted, and the proceeding is currently at the petition stage.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in BOE Technology Group Co., Ltd. et al. vs Samsung Display Co., Ltd. is valuable context for structuring arguments or assessing risk in similar proceedings.
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