LED innovation in the growing and mature LCD industry chain, the labor-intensive features of the LED backlight industry and relatively low entry barriers, resulting in the current backlight industry is in an extremely competitive state. On the one hand, upstream key materials such as optical films are still in the hands of a few manufacturers, material prices are difficult to fall, product costs remain high; on the other hand, there is also pressure from downstream customers to continuously demand price reduction. Under the tremendous pressure on both ends of the industry chain, the profit margin of backlight module products is getting smaller and smaller, and the operation and survival of some manufacturers, especially second-tier manufacturers, are getting more and more difficult. How to enhance product competitiveness through technological innovation has become a matter of life and death for LED backlight companies. In which aspects of LED innovation, the overall technical innovation direction of LED display application industry is mainly focused on large-screen intelligent control, high-density display new product development, special opposite-edge LED display application engineering design, LED display application expansion product and product reliability. Energy saving and other aspects. New demands are placed on the LED chip materials in terms of wavelength consistency and antistatic capability. At the same time, the requirements in the driver chip, LED packaging process, etc. are also constantly improving. The high-density and small-pitch LED display has been expanding in the indoor and outdoor application market, becoming a new market growth point, especially for indoor high-density small-pitch LED displays. With the advent of the P1.0 series of products, indoor high-density small-pitch LED displays have been favored in applications such as conference presentation screens and indoor information displays, and have begun to replace some traditional indoor display products. These applications place higher demands on the overall reliability and stability of the system. For applications such as security, monitoring and command and dispatch centers with huge reserves, indoor high-density small-pitch products should replace traditional DLP or LCD products, and also need to solve high-gray control under low brightness and extremely low pixel loss control. The rate, the high reliability of the pixel, the intelligentization of video image processing and playback, and the combination and display of large pixel images. These problems require collaborative innovation in the upstream and downstream of the industry chain, aiming at application needs, closely cooperating with technology, and jointly developing and solving related technical bottlenecks. LED display development trend LED display application industry development, the following trends are worthy of attention: First, full color, high-definition display, intelligent and networked control. The indoor display is mainly developed in full color, small dot pitch and high density, and is expected to continuously replace the traditional display products in a wider range. The outdoor display is mainly developed for large-area, high-definition, profiled products and engineering design, and will meet the needs of various outdoor display applications to a greater extent. The second is the standardization of basic technologies, diversified application requirements, and personalized product design. The division of specialization is gradually clear, the industry chain is collaboratively innovative, and multiple industries are coordinated. Enterprises pay more attention to differentiated products, focus on market segments, shape brand connotation, and enhance core competitiveness. The third trend of LED display development is to display system engineering, multi-technology, multi-system integration of specialized solutions. Facing the increasingly complex system application requirements, the display application industry will develop from single product supply to display system engineering construction. Specialized display system solutions for industry applications, industry demand services and technical support will become an important development direction of the industry. How to reduce the cost of small-pitch LED display At present, the small-pitch LED has high requirements on the technology and process, and the higher technical threshold also leads to higher production cost. How to reduce costs, first, through the packaging process to reduce costs, including large-scale procurement, especially chip procurement can choose high quality and low price suppliers. The second is continuous improvement of the process. Guoxing Optoelectronics (002449, stock bar) R & D center is specially equipped with R & D team to be responsible for continuous improvement and optimization of production process, scientific and reasonable process management and production line management and control can greatly reduce the non-performing rate. The third is the scale effect. At present, the shipment of Guoxing photoelectric display devices is the largest among mainland companies, and our 1010 products are also the first small-pitch LED products in China to achieve mass production. Responding to OLED and LED display challenges Even in the field of LED display, it faces competition from OLEDs and LEDs. Mainstream companies have consistently identified the gamut. The color gamut, ie the color saturation, refers to the ability of the display to restore natural colors. The higher the color gamut, the more vivid the image is, the closer it is to the natural color. Generally, the color gamut of a liquid crystal display is about 72, and the color gamut of an OLED can reach 100 or more. How to improve the color gamut of the LED backlight LCD display? One is to use a new narrow half-wave width red and green powder combination, the color gamut is about 85; the second is to add green light chip compensation, the color gamut can reach 95 or more; the third is to use the quantum dot phosphor solution to achieve more than 100 colors. area. The method is there, but each has its own limitations. Qiao Mingsheng, technical director of Qingdao Hisense Electric (600060, shares) Co., Ltd., said that the first solution is simpler to implement and the cost is relatively low, but the achievable gamut value is also lower; the second two-color chip solution can be The implementation of the gamut value is still relatively high, but the driving is complicated, the life of the two chips is inconsistent; the third quantum dot technology solution can achieve a high color gamut value, but the requirements for material packaging are also high, and the environmental protection aspect cannot be satisfied for the time being. Claim. Improving color gamut is only one of our efforts. Ultra-thin body, ultra-narrow bezel, high brightness, ultra-low power consumption, curved surface, etc. are the countermeasures for LED backlight LCD technology to meet new technical challenges. The ultimate goal is to continue to reduce costs through technological innovation and win market space with high cost performance. Many experts reached a consensus on the development direction of backlight technology.
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