Chinese LED maker, Aoto, was highlighting the ‘generation 2’ miniLED technology that it introduced us to at Infocomm (Aoto Moves MiniLED to Generation 2 for HDR – note that the image we got at Infocomm highlights the 2 x 2 matrix of the new display). The system is somewhere between SMD and CoB as the company sees a number of issues in moving to chip on board technology, particularly when it comes to repair. The new miniLED system uses small PCBs with four miniLEDs on each. The current pitch is 0.9mm with 0.7mm being available and the technology may even be extended down to 0.5mm. On the wall were copies of the patent certificates for the technology.
The change compared with Infocomm was that the firm was showing an 8K x 4K display that is running on the firm’s controller which can suport the full resolution. Aoto told us that it has built control rooms for military applications with resolutions up to 64K wide and and has made others at 24K x 4K.
Aoto is unusual in making its own controllers to support high resolution. Image:Meko
The company told us that while others use 16 bit control data for the timing of the driving of the LEDs, Aoto has extended this to 24 bits and that allows support of video signals to 12 bit and meaning that HDR (HDR10 or HLG), can be properly supported.
The miniLED technology has a good black level and a matt finish (another contrast with CoB) while the modules can run without a fan. The cabinets also have a very clean design and produce very good viewing angle performance.
The Aoto miniLED display has good viewing angles – better than SMD. Image:Meko
