Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11561591 | LED display driven by dual-negative-voltage power supply | Changjin Shi, Yiji Chen | 2023-01-24 |
| 11158235 | Color display panel and control method thereof | Mengmeng Xu, Changjin Shi | 2021-10-26 |