In the past two years, the implementation of policies such as safe cities and intelligent transportation construction, which are closely related to security development, and the enhancement of public security awareness have made the application of large-screen display industry in the security field maintain a good growth momentum. From the perspective of the application market, Ping An City is currently and will continue to grow in the large-screen display industry in the future. In particular, second- and third-tier cities have begun to highlight huge market potential. However, because the Safe City project is a very large and very complex system, and the area involved is large, the environment is complex, and the number of images is large, multi-level control is required, and high requirements such as high image definition and good real-time performance are required. Traditionally, the system for display purposes is far from meeting the needs of its use. This requires a large screen splicing display system to achieve integrated management through a large screen.
In the current market, the display in the security field is mainly divided into two categories: one is a liquid crystal display using a conventional CCFL (cold cathode fluorescent tube), that is, an LCD, and the other is a liquid crystal display using an LED (light-emitting diode) backlight. . LED display can also be called monitor or splicing screen in the security industry. With the improvement of LED technology in recent years, various types of monitors emerge in an endless stream, the weight is getting lighter, the definition is getting higher and higher, and the color is getting brighter and brighter. . Due to the market demand, some large-size splicing screen projects have emerged, which can meet the demand characteristics of many signal sources and complex control systems. In addition, LED display breaks through the limitation of seams, and the application prospect of LED display in the security industry is still very considerable. Currently, its main applications are in video conferencing and video surveillance, such as transportation, energy, public security, emergency rescue, and so on.
High-definition intelligence will be the development direction of LED screens in the security field. In the 13th Plenary Session of the Decision of the Third Plenary Session, the deepening of the scientific and technological system reform indicates that it is necessary to strengthen the use and protection of intellectual property rights and improve the incentive mechanism for technological innovation. The LED industry generally believes that this will benefit intellectual property protection in the LED field and help promote the development and innovation of new technologies and products in the LED industry. Regarding the technical breakthrough direction of LED monitor display, Yang pointed out that the future monitoring and display equipment must be developed in the direction of high-definition technology.
From the cathode ray tube display technology, liquid crystal display technology, plasma display technology to the evolution of organic light-emitting diode display technology, the latter is more than the former in terms of thickness, weight, brightness, resolution, function, viewing angle, response time, operating temperature range, etc. Superior. The picture tube also evolves from a spherical surface, a plane right angle, a cylinder surface to a flat picture tube, and the image is realistic and does not deform. For example, the plasma monitor is a new generation product after CRT/LCD. It is characterized by thin thickness and excellent resolution. It can manufacture large monitors without curved visual surface. The displayed colors are brighter and more vivid. Very broad. However, liquid crystal is currently recognized as the most suitable product for use in the security field as a professional monitoring terminal. For example, the service life problem, under normal circumstances, the life of the LCD screen can reach more than 50,000 hours, the resolution can easily achieve standard high-definition or even reach 1080P full HD level, power and heat generation is relatively small. However, in comparison, LED displays are more competitive than LCDs.
Last year was a big outbreak of small-pitch LED displays. In the security field, the biggest advantage of small-pitch LED displays is their complete seamlessness and the natural beauty of display colors. At the same time, in the aspect of post-maintenance, the LED display has a mature point-by-point correction technology. The display can be used for one-time correction of the whole screen using the display for more than one or two years. The operation process is simple and the effect is good. At present, the small spacing of LEDs is actually applied in the fields of monitoring security, command and dispatch, and intelligent transportation. In the future, LED small-pitch display will be further reflected if it can make greater breakthroughs in HD and intelligence.
From the above content, LED display shows great advantages and development potential in the security field. In the future, LED displays will occupy a place in the security field. LED displays will promote the advancement of security, and the security field will also promote the development of LED displays.
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