Viewpoint|Mini-LED backlight technology brings growth opportunities to LCD

Compared with OLED technology, LCD technology has obvious advantages in cost and lifespan; it has a small difference in color gamut, resolution, and power consumption, and has disadvantages in contrast and motion image blur. Although LCD for Samsung has various characteristics of excellent picture quality, and its self-luminous display technology is recognized as the new development direction of the future display industry, the current material stability and packaging and sealing technology of OLED need to be improved, compared with the mature traditional backlight Source LCD, the cost still has room for further sinking.

The appearance of Mini-LED changed the passive situation of LCD. The addition of Mini-LED backlight technology has greatly improved the performance of LCD, and directly competes with OLED in all aspects of non-flexible display performance: Because Mini-LED has the technology of local dimming (Local Dimming), through the overall picture The dynamic dimming can achieve high dynamic contrast and wide color gamut display. Through the special packaging structure and process, the light angle can be increased, the halo effect can be reduced, and the near-zero OD design can be realized in the terminal with a uniform self-mixing effect. The whole machine is light and thin, achieving the same effect as LCD for Samsung display.

As an LCD backlight technology, Mini-LED has several advantages: high dynamic contrast, high dynamic range, the number of dimming areas depends on the size of the LCD screen, and the distance between off and on. And resolution.

Take TV applications as an example. Compared with traditional backlit LCDs, LCDs with Mini-LED backlight technology have risen from 50 LEDs to 10,000 to 20,000, and the size is only 100 to 200 microns. . The performance of dynamic contrast and brightness is better, and it has the advantages of light and thin, high image quality, low power consumption and energy saving, which greatly improves the performance of LCD. Compared with LCD for Samsung TVs of the same performance, the price of Mini-LED is only equivalent to that of QLED-backlit LCD TVs before the price reduction, and the price advantage is obvious. According to LEDinside's forecast, if LCD directly competes with OLED, the product life cycle is about 5 to 10 years. If Mini-LED is used to enhance the performance of LCD products, the product life cycle is expected to be expanded by 1.5 to 2 times.

The commercialization of Mini-LED backlight technology will accelerate in 2021. Since 2019, BOE, TCL, Innolux, AUO, etc. have launched various Mini-LED application prototypes, which have been put into small-scale mass production, including 27-75 size Mini-LED backlight displays, TVs and gaming pens Electric panels, etc., and Apple, Samsung, and LGD are also actively participating in investment in Mini-LED manufacturing projects: Apple is expected to launch the Mini-LED display iPad and Macbook as terminal products in the first and second quarters of 2021, which will drive the application of this technology. . From the perspective of the layout of upstream, midstream and downstream manufacturers in the industry chain, Mini-LED has successfully equipped technology, capacity, yield and other conditions, and is about to enter the fast lane of development: According to Arizton statistics and forecasts, the global Mini-LED market will be about 0.25 in 2019 Billion US dollars, it will exceed 2.3 billion US dollars by 2024, with a CAGR of 148%. my country's Mini-LED industry has obvious advantages. According to Gaogong's LED statistics and forecasts, my country's Mini-LED market will be 300 million yuan in 2018, and it is expected to exceed 2.2 billion yuan by 2020, with a growth rate of 170% or more.

We believe that the combination of Mini-LED and LCD can expand the life cycle of existing liquid crystal display products and strengthen the differentiated bargaining power of panel manufacturers. Mini-LED backlight LCD displays are expected to be expected from 2021 In mid-to-high-end notebooks, e-sports monitors and large-size TV products, large-scale heavy volume. (Galaxy Securities)

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