Remove these stumbling blocks, Micro LED production is not far away

A few years ago with SONY display Micro LED prototype TV after the 2016 CES exhibition and display updating technology Micro LED Micro LED TV, Apple also invested huge amounts of industrial transfer, and rumors of future Apple will import Micro LED in the mobile device on the display panel, so that the industry is full of expectations for the MicroLED display technology. For the LED backlight and LCD panel industry impact OLED panel growth has another feasible direction and options.

Micro LED if you make the display panel like LED display, with dozens of inches to hundreds. This area is technically feasible, but also far from the commercial production, is the need for higher speed massive transfer of technology, put a small LED shift to the substrate, or using existing technology and good to create a rate available display, take too long to mass production.

With LED spacing slightly, the traditional LED packaging cost in the whole LED display module in relative proportion, over the high, manufacturers can have miniature traditional LED the size of the wafer, but with package support, and hit the line, then do the cost and technology cannot balance the limitations.

In the future, if you do the display through the Micro-LED, you do not need to seal the stent and metal wire, can be reduced into a traditional SMD-LED packaging costs.

Micro LED production to solve the uniformity problem

Micro-LED products require high wave length uniformity, small spacing with LED product wavelength uniformity is demanding. Under the current production standards, the requirements of the blue wavelength uniformity of LED + 5-12nm, but the small spacing of the wavelength uniformity requirements, or even lower than + 1-1.5nm. If it is Micro LED, will be more stringent requirements.

In other words, in the production scale, high precision transfer process to improve the process yield, at least 99.9% or more, or even a better state of 99.999%.

As a result, the industry needs to use the PCB board, but also to be able to complete the customization requirements, through the wire width / line from the development and drilling, by this ultra high density line, the only way to carrying huge Micro-LED row, for consumers and users, you can display the effect of high resolution and high the quality plan.

In addition, the difficulty of Micro LED application in wisdom and wisdom bracelet watch, the LED driver development in IC is promising to complete, because want to control the plan by less, if it is the application in the LED display with MicroLED, the IC will need to drive collocation highly customized, try to drive circuit integration with the line scan, to simplify the PCB backplane design, improve the photoelectric conversion efficiency, solved due to the high density LED draw too much, resulting in insufficient space placement problem driven IC. At the same time, the drive circuit can be modular design, so as to further save design and manufacturing costs.

Micro LED industry development in the future, there are a lot of things or the industry gradually completed, in order to spell the puzzle. (text /LEDinside Ivan)

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