Inventory of milestone technologies of LED display screens

2 views admin 2024-11-22

Whether it is the development of a country or the progress of an enterprise, innovation is always the first driving force and is placed at the core. Especially for the LED display screen industry with high technical content, technological innovation is particularly important. So, what kind of driving role does the most milestone innovation technology in the LED display screen industry play in the long river of industry development?

Full-color display technology LED display screens have gone through the process of monochrome and two-color graphic display screens to image display screens, but it was not until the mid-1990s that full-color screens appeared. Both in terms of performance (improving brightness LED displays and blue light-emitting lamps, etc.) and system composition (computerized full-dynamic display system), great progress has been made. The level of ultra-high brightness full-color video display that has been achieved can be said to meet the requirements of various application conditions. Up to now, full-color LED display screens have been widely used, consisting of red, green and blue LED lights, which can display white balance and 16777216 colors. The emergence of full-color technology has brought a huge display breakthrough for the image effect of LED display screens. Nowadays, whether indoors or outdoors, the LED large screens used are basically full-color LED display screens, which can maximize the creativity of advertisers and bring a very impactful visual experience to the audience.

Surface mount packaging technology In 2002, surface mount packaged LED display screens were gradually accepted by the market and gained a certain market share. Many manufacturers launched such products. In recent years, with the rapid development of three-in-one technology and the continuous improvement of production processes, surface mount packaging technology has developed rapidly. Compared with direct plug-in packaging technology, surface mount technology has many advantages such as large viewing angle, good color consistency, good contrast, and light box weight. In addition, surface mount technology has a high degree of automation and can be directly used in SMT high-speed placement machines, which directly improves the production efficiency of products and reduces costs. Before the advent of surface mount packaging technology, direct plug-in technology became the mainstream of the LED display market. However, due to the difficulty in achieving high-density display, direct plug-in LED display screens can only be used outdoors, which greatly limits the penetration of LED display screens into the entire application market. The emergence of surface mount packaging technology has undoubtedly promoted the application of LED display screens in high-density indoor display screens. With the advancement of LED chip technology and LED packaging technology, the brightness and protection level of surface mount LED display screens have been able to meet the needs of outdoor applications and have been rapidly applied. It can be seen that surface mount packaging technology has not only expanded the application scope of LED display screens, but also has a trend of seizing the entire LED display screen market.

Point-by-point correction technology The problem of brightness and chromaticity uniformity of LED display screens has always been a major problem that has troubled industry insiders. It is generally believed that the uneven brightness of LEDs can be corrected at a single point to improve the brightness uniformity, while the uneven chromaticity cannot be corrected and can only be improved by subdividing and screening the LED color coordinates. As people's requirements for LED display screens become higher and higher, only subdividing and screening the LED color coordinates can no longer meet people's discerning eyes. It is feasible to perform comprehensive correction processing on the display screen to improve the chromaticity uniformity. By 2010, it has gradually become a necessary tool for control systems to enter the market. The point-by-point correction system is a comprehensive software and hardware system that can measure and correct each pixel on the LED display. This system can correct the brightness and color of each pixel of the entire screen to achieve consistent performance characteristics. To this end, the world's most advanced single-color brightness and color correction technology is used to solve the problem of inconsistent color rendering caused by inconsistent attenuation of different color LEDs.