At the Taipei COMPUTEX 2018 show, TGST demonstrated the world's first Micro LED display module that directly transfers Micro LED chips to PCB substrate.
This also means that the display module has great potential to reduce costs in the future and can be applied to video wall, indoor display age and other products by means of splicing.
Is different from the SONY launched in 2017 by Micro LED display - CLEDIS, although use same PCB substrate as the back, but due to poor flatness of PCB substrate, micron grade of chip, there is no way to call directly on the PCB substrate, therefore still needs to be Micro LED chips encapsulation type, and then transferred to the PCB.
The program presented by TGST this time is to overcome such difficulties.
This also means that in the future Micro LED display modules, there will be more possibilities to reduce costs.
According to our understanding, the cost of the module end will be more than 30% cheaper than the traditional small spacing display.
Once the technology matures in the future, it will have the opportunity to disrupt the traditional commercial display market.
Taiwan institute of technology and research, together with a large factory in the first line of development, predicted that there will be a chance of mass production in 2019.
While Taiwan industry research institute product is hand in hand to the accumulation of the show, xin xing with create a line of Chinese Taiwan area manufacturers such as cooperation development.
The accumulator technology of the terminal LED drive IC factory is responsible for the passive matrix drive scheme to solve the problem of how to drive and calibrate micron LED chips.
Ending electronics is responsible for making PCB substrate.
Low semiconductor plant technology, will help Taiwan industry research institutes, design of Micro LED chip to realize the mass production.
Through the cooperation between Taiwan institute of technology and the three factories, we jointly developed the passive matrix drive "Micro LED display module with ultra-small spacing". The LED grain size is about 50?
M - 80?Between m and pitch, about 800?
Below , the module size is 6cm x 6cm, and the resolution is 80x 80pixel. It can be freely spliced and applied to video wall, indoor display age and other applications.
But at present there are still part of the technical bottleneck to overcome, ultra Micro small spacing though have done color LED display module, but not "RGB color", the main reason is that red leds is limited by its own material properties, combined with the traditional PCB has a certain roughness, after the transfer of the color easy to be affected, this also highlights the Micro LED so it is difficult to transfer directly to the PCB substrate, evenness is not easy to control, at present the related technical obstacles are still struggling to overcome.
In the future, the Micro LED display module with ultra-small space will be implemented and commercialized by CMC, and the technology will be introduced into the display application market that CMC is best at.