Liu Yongfeng’s Insights on Micro LED Display Technology
On October 29, during the 2024 TrendForce Self-emissive Display Industry Seminar, Liu Yongfeng, the Product Planning Director of Tianma’s Micro LED Research Institute, delivered a presentation titled “Applications and Future Prospects of Micro LED Display Technology.” He shared profound insights into Micro LED display technology. He emphasized its expanding applications across various sectors, including wearable devices (such as AR/VR and smartwatches), PID (including Micro LED TVs), and automotive displays. With the continuous breakthroughs in LED chip miniaturization technology, the performance of Micro LEDs is steadily improving. Liu anticipates that automotive and PID displays will lead the way in commercial breakthroughs, while the wearable device market will also see gradual growth.

Opportunities and Challenges in Automotive Displays
Liu specifically pointed out that high-end automotive displays have stringent performance requirements but are less sensitive to cost, presenting a promising opportunity for the development of Micro LED technology. He explained that the key to automotive displays lies in meeting high brightness and speed demands. For instance, head-up display (HUD) technology requires brightness levels of up to 10,000 lumens. However, challenges remain in achieving transparency and precise stacking in backplane technology. In PID displays, implementing a borderless LTPS backplane presents a significant hurdle. Tianma’s LTPS technology, combined with the GOA in pixel design, achieves a P0.15mm borderless backplane, setting a new benchmark for the industry.

Advancements at Tianma’s Micro LED Research Institute
To advance the development and industrialization of Micro LED technology, Tianma has established the Micro LED Research Institute and has completed several forward-looking technological developments. Liu mentioned that the company has opted for a glass-based LTPS technology route, focusing on new applications in automotive displays, transparent displays, large-size high-precision stitching, and wearable devices, aiming to achieve differentiated competition in the market. He stated that transparent displays represent a crucial application scenario for Micro LED technology, with Tianma striving for over 75% transmittance—an essential factor for future smart cities and IoT environments.

Future Outlook and Industry Collaboration
Looking ahead, Liu shared his personal insights on the Micro LED industry. He believes that with technological advancements and growing market demand, Micro LED will gradually become the mainstream display technology. Future enterprises will need to prioritize R&D investments and enhance product cost-effectiveness to meet the rising demand for high-performance displays. He also highlighted that collaboration and mutual benefits will be key to industry development, as overcoming current technical challenges requires cooperation among various players in the industry.

Addressing Yield and Cost Challenges
Moreover, Liu emphasized that yield and cost issues are the most significant challenges facing the industrialization of Micro LED technology. Improving yield and reducing production costs are essential to drive overall industry development. He is confident that as the technology matures, Micro LED will extend beyond the high-end market and gradually permeate various application fields, ultimately achieving large-scale commercialization.
Upcoming Innovation Conference
Tianma will host an innovation conference on November 6 in Xiamen, where it will showcase the latest advancements in Micro LED technology. The event promises to be an excellent platform for industry peers to engage and collaborate, further promoting the development and application of Micro LED technology.
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