500,000 nits of ultra-high brightness red light Micro LED microdisplay achieved mass production

How to achieve high-brightness red Micro LED has always been a problem in the industry, and it is also a key barrier to the industrialization of Micro LED micro display technology. JBD's 0.13-inch red light microdisplay product broke through the efficiency limit and achieved a brightness level of 500,000 nits, setting a new brightness record held in the past.

The launch of JBD's high-performance products will help Micro LED technology be further expanded in various scenarios such as sports optics, automotive display, and near-eye display, and also lay the foundation for the full-color AR application of Micro LED.

JBD's red light products are self-emitting microdisplays produced by integrating AlGaInP semiconductor materials with silicon-based CMOS at the wafer level based on its invention of hybrid integrated semiconductor technology. AlGaInP semiconductor materials are the key to achieving high-performance red light, and they have the best semiconductor bandgap width that matches red light, making them the most mature semiconductor materials used to make red LEDs in the industry.

It is reported that JBD has been adhering to the AlGaInP-based red light Micro LED technology route for many years, and through continuous in-depth research and development, it has made simultaneous efforts at both ends of material growth and chip technology research and development, breaking through the bottleneck of red light size effect and achieving a huge improvement in red light performance.

In the 0.13-inch red light chip launched by JBD, the pixel size is only 4 microns, and the Micro LED luminous point is only 2 microns, but it can easily load the drive current of the microampere level and produce 500,000 nits of ultra-high brightness. In comparison, QD-LED and Micro OLED based on quantum dot color conversion are the other two mainstream self-illuminating micro-display technologies, and JBD's red light chips have achieved dozens of times performance surpassing according to the current public brightness level of only a few thousand nits.

In addition to ultra-high brightness, excellent display quality and reliability levels are the key to the commercialization of Micro LED microdisplays. JBD's AlGaInP-based red light products achieve extremely narrow spectral widths and perform well in terms of color purity. As shown in Figure 4, the spectral half-wave width of this product is only about 15nm, which is much lower than the typical half-wave width of nearly 50nm for InGaN-based red light and nearly 30nm for QD-LED.

此外，出色的显示质量离不开CMOS背板与Micro LED的紧密配合。在JBD的专利IC背板技术加持之下，红光产品实现了>95%的像素级显示均匀性、>100000:1的超高对比度、以及

All in all, the mass production of JBD's high-performance red light Micro LED display has completed its series of micro display products in multiple colors, and will strongly expand its monochrome to full-color multi-field applications. So far, JBD has shipped more than one million micro display panels, continuously providing core display components to the downstream Micro LED terminal application industry chain, accelerating the application of Micro LED technology in near-eye display AR/VR, HUD head-up display, motion optics, 3D printing, micro projection, light field display and other fields.