Tianma Microelectronics held its first "2021 Micro-LED Ecosystem Alliance Conference" in Xiamen, China, during which several producers and researchers gathered to discuss microLED technologies and challenges.
During the conferences, Tianma showed several new microLED prototype display, including some new ones. The first display is a 9.38" 960x480 (222 um pixel pitch) transparent LTPS panel. Tianma's second-gen transparent panel features higher transparency (>70%), larger size and a refined TFT process compared to the company's first-gen transparent microLEDs shown in 2019.
This second display is a 11.6" 2470x960 (228 PPI) rigid LTPS microLED display which the company says is the world's first high-resolution medium-sized Micro-LED display that meets the requirements of high-end automotive display consoles or instruments.
The third display is a tiled microLED display, made from 5.04" 480x320 (222 um, again) panels. Tianma says that this display designed with gate-on-array (GOA) in pixels, while high-precision cutting technology and integrated packaging achieve a display with a spacing close to 0 mm. This seems to be the same panel shown in SID 2021.
The fourth display is a flexible 7.56" 720x480 (114 PPI) LTPS panel, that offers a curvature of 5 mm and a polyimide substrate. Again, this seems to be the same display shown in SID 2021.