(2) The application of Mini LED technology is already economical
1. Compatibility of traditional LED production equipment
Mini LED has special-shaped cutting characteristics, and can be used with a flexible substrate to achieve a form of high-curved backlight. It has better color rendering through local dimming, and can bring finer HDR partitions to the LCD panel. The thickness is similar to that of OLED and is more energy-efficient.
Compared with Micro LED, Mini LED can be regarded as an improved version based on the small-pitch LED backlight. It does not need to overcome the technical threshold of massive transfer, the technical difficulty is lower, the production yield is higher, and it is easier to achieve mass production.
At present, some manufacturers have entered the stage of mass production. In terms of production equipment, Mini LED can be produced using most traditional LED production equipment, so it has higher economic efficiency.
2. High dynamic range and reduced halo effect are the outstanding advantages that Mini LED brings to LCD
The current LED backlight chip size is large, resulting in serious light leakage between black and white pixels. This phenomenon is called the halo effect. The small size of Mini LED can solve this problem well.
Although the light efficiency of Mini LED is slightly lower than that of ordinary high-brightness LEDs, it can be compensated by dimming by partition. Each area corresponds to multiple pixels, and the brightness of each area can be independently controlled.
By compensation, the contrast ratio of light and dark of the display can be increased to the same as that of OLED (1000000:1), and it can also save 3 to 4 times the power.
3. The cost of MiniLED backlight solutions is decreasing year by year
The Mini LED display production line has the characteristics of miniaturization, which is conducive to the rapid iteration of technology and process. In February 2019, Innolux's AM Mini LED trial production line was successfully lit, with an investment of only about 110 million yuan.
Significantly lower the barriers to entry for the industry. The average investment of domestic production lines for LCD, OLED and flexible AMOLED panels is as high as 13.9 billion yuan, 27.9 billion yuan and 46.5 billion yuan.
Benefiting from the rapid iterative improvement of the manufacturing process, MiniLED technology and yield will make breakthrough progress, thereby reducing the cost of Mini LED display devices.
According to the latest survey by LEDinside of TrendForce, the current production cost of MiniLED backlight displays is still higher than that of traditional LCD and OLED screens, but as the technology matures and the process yield increases.
It is estimated that the cost of MiniLED backlight displays will decrease by 15-20 percent every year, and will have the opportunity to be lower than that of OLED displays in 2022, with market competitiveness.
4. Mini LED backlight is an important direction for LCD panel upgrade
Mini LED backlight is an important direction for the upgrade of LCD panels. Compared with OLED, the advantage of Mini LED backlit LCD is that it can achieve a display effect comparable to OLED panels at a lower cost, a light and thin experience, large-scale mass production capability, and longer life and lower power consumption.
