Mini LED solution

First of all, let's make it clear. LED and IPS are not things in the same field. LED is a backlight technology. IPS and VA are panel technology. The composition of the display can be simply understood as backlight+panel (LCD glass)+drive board = display. The panel mainly determines the basic characteristics, such as whether it can reach 4K and whether it can reach 240Hz. The driver board is generally matched with the panel, and the manufacturer is tuned to make the panel achieve the best effect. For example, the monitors of the same panel can reach 240Hz, and the drive board is determined by the drive board. Backlight is to determine the display effect. When used, the screen is comfortable, bright, etc., and the biggest influencing factor is backlight.

Micro LED is LED's miniaturization and matrix technology. In short, the LED backlight sources are made of thin -film, tiny, and matrixized, which can make the LED unit less than 100 microns. Drive light (self -emitted) alone. Due to the stability of LED inorganic objects, no matter how much it is used, it can maintain consistency and stability, which is unmatched by OLED. At the same time, Micro LED also takes into account the characteristics of pure black, and it is a pixel -level pure black. This is more direct and pure than the partition backlight control of the MINI LED.

The advantage of Micro LED is that it comes from the Micro -level micron LED, and the difficulty also appears on it. At present, Micro LED mainly has three technical difficulties and problems. The quantum efficiency DROOP effect (limited valid light surface, low red LED efficiency), driving capacity matching problem (requires high current, low power -consuming driving materials), huge transfer problems (High process requirements, high accuracy requirements, high cost). The most important issue appears on the problem of huge transfer.

MINI LED is also known as the 'Asian MM Everbright Diode'. It uses a 100 ~ 200 micron -level LED crystal, which is a improved version of traditional LED backlight.

MINI LED technology is considered to be a transition technology between traditional LED and Micro LED. It can produce a display screen of 0.5-1.2 mm pixels with MINI LED, which is greatly better than the traditional LED screen. Common MINI LEDs can basically pass the certification of HDR1000, which can achieve the maximum brightness above 2000 Nit. MINILED currently refers to the MINILED LCD display module.

LED pixel spacing is aggressive at [0.1mm, 2.5mm] is generally called Mini-LED

Among them, LED pixel spacing [1.0mm, 2.5mm], also known as small spacing LED

     MINI-LED LCD shows that it can achieve OLED-like pure black display, and can also support ultra-high brightness, ultra-high dynamic contrast, and realize HDR

· The entire set of solution agents, and realize the production faster

· Rich input interface, output interface LVDS up to 1080p60Hz

· LED lamp bead refresh rate is high and not flickering (can be refresh rate of about 1kHz)

· Self -run algorithm, no light

· Optional domestic/non -national production plan

▪ Comparison scheme 1 is the difference in the screen that can point higher than 1080P; comparison uses more expensive FPGAs, and the cost is more saved.

Let us suppose

The red box is the first channel control of LED DRIVE IC.

The yellow frame is the third channel control of LED DRIVE IC in the second part.

The green frame is the second channel control of the LED DRIVE IC in the third part.

Because the brightness data passed by FPGA is the LED DRIVE IC 1-100 channel corresponding to the 1-100 region, the MCU needs to change the data of the LED DRIVE IC channel 2 and 3, which we need to refer to the mapping. So why not change the hardware of 2 and 3 channels, because the lamp board has to adjust the order for the wiring.