Micro LED display Be considered as the next generation display Panel technology, it has the advantage of not only inherits the inorganic LED's high efficiency, high brightness, high reliability and fast response time characteristics, but also has the characteristics of self-luminous without backlight, small size, light weight, but also easy to save energy effect.
For MicroLED's market position, AUO Chairman Peng Shuanglang that both MicroLED LCD with OLED However, LCD panel costs are already very competitive, and finding new entry points now can be a big challenge.
MicroLED's hot market caused Apple, TSMC, AU Optronics, Samsung and other industry giants attention recently news that Apple is planning to jointly develop with TSMC micro LED display Screen, began to pay attention to the research and development of microLED screen, but Apple still will continue to use the OLED screen on the product.Apple will still adopt the same strategy with the OLED screen, first use it on the smaller AppleWatch, and then applied to the screen size Larger iPhone.
In addition, Samsung is also stepping up efforts to seize the MicroLED market.According to ZDNet, Samsung will showcase its first TV based on the MicroLED screen at CES next year, up to a maximum size of 150 inches.
Compared with OLED, MicroLED can make LED unit less than 100μm, thus solving the problem of burning screen and prolonging the service life.MicroLED is also ahead of OLED in screen response time, resolution and display effect.
Samsung also said that if all goes well, next year can mass-production based on MicroLED screen TV.
As the resolution increases, the cost of Micro-LED will rise geometrically, which is a lot of people on the Micro-LED can successfully enter the industrialization of a worry.But PlayNitride chairman Li Yunli said the next five years, Micro - LED costs will drop significantly.
In addition to cost concerns, the industry has always been concerned about the huge amount of transfer problems.Li Yunli pointed out that the transfer speed is quite fast, every 10 to 15 seconds can transfer 200,000 chips.Now the problem is not to do more Transfer, but need a larger wafer size, otherwise, the transfer efficiency will decline.Li Yunli think the huge amount of transfer is not a big problem, they have been small quantities of trial production, the yield rate continued to improve in the production process, and As technology continues to mature, Micro-LED yield will increase.
Of course, Micro-LED has many challenges.Li Yunli pointed out that first, Micro-LEDDisplay is not a fixed current, the current needs to change with the brightness, which is not in the traditional LED.Second, to improve yield is very critical, if 100 There are a million dead pixels LED, which means that to repair 10,000, too high dead pixels can not be repaired. Third, Micro-LED must be upstream and downstream cooperation, the need to develop rigid, flexible, transparent substrate, driver IC and Circuit, etc .. Fourth, Micro-LED made, but also for testing, detection of dead pixels is also a difficult point.
