4.Why Apple iPad and MacBook Pro love Mini LED so much?
Jan 10, 2020| It is rumoured that the iPad with the Mini LED screen, the MacBook, has run for several months inside the apple, pushing the Mini LED to the mass production line, but it's a matter of time. At the end of 2020, at least six of Apple's products will be used to the legendary Mini LED screen by the end of 2020.
The six products include the high-end iPad Pro series launched in the third quarter of 2020 and the 16-inch MacBook Pro series launched in the fourth quarter of 2020. Guo Mingyi believes the Mini LED screen is a key differentiated technology for Apple's medium screen size products, and the use of Mini LED screens will be considered in the future as long as devices larger than the iPhone screen. So in the next two, three years, Apple will release several Mini LED screen hardware in a row.
Although there is no essential difference between, Mini LED backlight and LED in principle, it is still a backlighting technique. However, because the size of a single LED light source is greatly reduced, from 3mm × 3mm to 0.125mm × 0.225mm, more dynamic partition can be realized, and the contrast can be higher than that of the traditional LED backlit liquid crystal display, and even twice as much as that of Apple Pro Display XDR. The contrast of HDR display can reach 1000000: 1. If you rely on dynamic adjustment technology, it can also be increased to 100000, 00. 0 / 1, completely kill Apple's own Pro Display XDR.
What is more valuable is that because the Mini LED backlight is smaller, it can bend together with the display screen. That is to say, if necessary, iPad Pro and MacBook Pro can be similar to iPhone, through screen edge folding to obtain a more ideal narrow border design.
So the problem is that popular OLED screens can achieve similar results, and Apple has begun to lay out LTPO screens on the Apple Watch Series 5 to strive for better performance and power-saving technology. Why does Apple still insist on launching the Mini LED line first on large screen products?
The answer is that Mini LED can really be cheap. Because Mini LED backlight driving mode uses LED backlit Driver IC chip drive, TV, display manufacturer can use the existing production line to manufacture Mini LED backlight, take a-Si TFT to drive (Amorphous silicon thin-film-transistor, amorphous silicon thin film field effect transistor as an example, on a Mini LED amorphous silicon glass substrate, each Mini LED side has an independent driving circuit, dimming response. The speed is faster and the control accuracy is higher, which can greatly improve the speed of dynamic partition backlight response and the accuracy of each partition brightness, and can also reduce the thickness of backlight module.
This solution is mature, effective and cheap, and it is interesting that a-Si TFT has confirmed that the future will be replaced by LTPS,IGZO, and that the future of LTPS is the LTPO., which is driven by Apple to start mass production.
In other performance indexes, there is no significant difference between, Mini LED backlight and LED backlight, the reaction speed is maintained at millimeter level (the fastest 1ms is about), the life span is not significant, and the power consumption is lower than the latter. Basically, Mini LED is more like an advanced product in the background of LED backlight technology, mature and reliable, and the cost is lower than OLED and Micro LED,. It can make HDR display implementation easier, thus helping Apple to form ideal excess between traditional LCD and OLED.