I'll research Tianma Microelectronics to build an accurate profile.
Let me verify the patent case details and ownership structure.
Tianma Microelectronics Co., Ltd. (Chinese: 天马微电子股份有限公司; commonly "Tianma" or "Shenzhen Tianma A") is a display-panel manufacturer headquartered in Shenzhen's Longhua District, China. Founded in 1983, it has been listed on the Shenzhen Stock Exchange since March 1995 (ticker 000050.SZ). It is a public company but state-controlled: its ultimate controller is China's SASAC through Aviation Industry Corporation of China (AVIC), with AVIC-affiliated entities holding roughly 24–28% (SZSE filings; Investing.com). Reported headcount is about 23,500 (stockanalysis.com), though the company cites over 40,000 including associates. For fiscal 2025 it reported revenue of CNY 36.2 billion and net income of CNY 167 million (MarketScreener).
Products / operations. Tianma designs and manufactures small- and medium-sized display panels across a-Si TFT-LCD, LTPS TFT-LCD, IGZO, rigid and flexible AMOLED, and Micro-LED, plus touch-integrated displays. Its core segments are automotive (instrument clusters, head-up displays, smart-cockpit assemblies), smartphones, IT displays (tablets, notebooks, monitors), professional/industrial displays (medical, HMI, appliances), and wearables. Manufacturing sites span Shenzhen, Shanghai, Chengdu, Wuhan, Xiamen, Wuhu, and Japan (Tianma Japan, formerly NEC LCD Technologies). Display solutions account for ~98% of net sales, with China at ~70% (company disclosures; MarketScreener).
Patent-litigation posture. The tracked data show a single appearance, as a plaintiff/petitioner at the USPTO Patent Trial and Appeal Board, and zero defendant-side appearances — notable for a company of its size. It is a patent challenger, not an accused US defendant in this dataset; none of its tracked matters sit in district-court venues such as the Eastern District of Texas.
Notable case. Mianyang BOE Optoelectronics Technology et al. v. Samsung Display Co., Ltd. (IPR2024-00620, filed March 6, 2024) is a joint petition by BOE, Wuhan China Star (CSOT), Tianma, and Visionox against Samsung Display U.S. Patent 9,330,593 — filed after Samsung Display's ITC action against US importers/wholesalers of OLED panels. In related external context, in March 2026 the USPTO Director denied institution in a separate Tianma petition against LG Display (IPR2025-01579), finding Tianma likely ≥10% Chinese-government owned and therefore ineligible as an AIA petitioner (USPTO; Steptoe; Kilpatrick).