On March 30, 2016, China 3D Industry Alliance, Chaowei Planet, Zhongguancun Vision naked-eye three-dimensional information industry alliance and China Electronic Equipment Corporation jointly launched, based on China's 3D Industry Alliance Virtual Reality Professional Committee, bringing together China's virtual reality. More than 100 related institutions, such as the field of government, industry, and research, jointly initiated the establishment of the "China Virtual Reality Industry Alliance." Among them, more than 100 key enterprises such as Huawei, MediaTek, Changhong, Liard, Second Space, Rhino Digital, Ant Technology, and Beijing Lanke Interactive Technology. Black Crystal Technology, which is invested by Led Display company Liard, will focus on the core strategy of Liede Group's “Civil Travel + Financeâ€, and cooperate with Lifeng Culture, Jin Lixiang and Jihu Image, which are the strategic partners of Liard. ... and other domestic first-line cultural travel, dance beauty, digital performing arts companies are committed to the in-depth development of the virtual reality travel industry. The China Virtual Reality Industry Alliance was released on April 9, 2016 at the China Electronic Information Expo. China Virtual Reality Industry Alliance will rely on science and technology to support the "human factors for health research", based on human health experience, in-depth study of user experience characteristics and user value, integration of key enterprises and users in all links of the industry chain, and work together to build China's VR industry chain The technical specification standard system actively guides enterprises to establish product services with user experience as the core, and jointly promotes the healthy development of China's virtual reality core industry. China Virtual Reality Industry Alliance will rely on science and technology to support the "human factors for health research", based on human health experience, in-depth study of user experience characteristics and user value, integration of key enterprises and users in all links of the industry chain, and work together to build China's VR industry chain The technical specification standard system actively guides enterprises to establish product services with user experience as the core, and jointly promotes the healthy development of China's virtual reality core industry. Huai Jinpeng, deputy director of the Ministry of Industry and Information Technology, led a team to inspect the VR experience zone presented by the China Virtual Reality Industry Alliance and Superstar Planet. In order to better guide and standardize the virtual reality industry to move forward steadily and give health guidance to the consumer market, at CITE2016, the organizer of the Ministry of Industry and Information Technology directed the planning of the “VR Experience Zone†in the theme pavilion, the China Virtual Reality Industry Alliance Supervised Planet Selects the excellent virtual reality experience project to launch the “HiFun†VR National Experience Program, which provides member companies with a public display platform and communication opportunities to nurture and provide users with the most healthy and comfortable experience. Shi Jing, an electronic division of the Ministry of Industry and Information Technology, believes that our domestic virtual reality should dare to face problems and face demand, and apply traction industry discovery. Do basic technology research and development such as GPUs, sensors, etc., standardize the industrial environment, and create an ecological system that is compatible with each other. Nowadays, virtual reality is actually a collection of human beings from the perception of human beings, the convenience of human interaction to the convenience of our lives, and the continuous development of industrial technology, thus forming a new industrial field. From the history of the development of various industries, once new opportunities emerge, they often rush to the top, and it is easy to ignore the inherent nature of industrial development. Therefore, we are talking about the fact that when the hotspot arrives, we must look at it rationally.
In recent years, in large-scale shopping malls or activities, we always see the figure of "LED fan". Its appearance is similar to the fan, but it can display various patterns when rotating, and some can display dynamic 3D patterns, which is very cool. Every time we see it, we can always make people stop and watch it, which plays a very good role in publicity and promotion. So how do LED fans display patterns?
Strictly speaking, this so-called "fan" is just a vivid way to call it. In fact, it is a kind of "rotating LED light bar", and its professional name is holographic 3D smart glare screen. After power on, the "fan blade" starts to rotate, which can present a 3D image at the same time, cool and lifelike. At the same time, according to the size and color of the pattern, the LED fan can well hide its leaves, because there is no frame and no fixed screen, so the dynamic picture is like floating in the air, very realistic.
The 3D smart screen not only uses the hardware of rotating LED, but also uses the visual persistence of human eyes. For the hardware equipment of rotating LED, simply speaking, it is to calculate the change frequency of LED light according to the rotation speed of "fan blade". When different LED lights are lit at different times, different patterns will appear. The so-called visual persistence refers to that when the human eye is observing the scene, the light signal is transmitted to the brain nerve, which takes a short period of time. After the end of the role of light, the visual image does not disappear immediately, and the human eye can still maintain its image for about 0.1-0.4 seconds. This kind of residual vision is called "afterimage". The visual phenomenon is called "visual persistence", and the single product can be unique. Vertical display effect can also display the overall effect in combination.
3D holographic fan screen application: shopping malls, brand stores, stores, airports, etc. A good choice to reflect brand effect and brand grade
Principle of 3D holographic screen: Generally speaking, one or more strings of LED lights are arranged on the fan blades. Here, it is assumed that there are 20 LED lights, which are numbered 1-20 at a time from the axis to the edge of the fan blades. In order to explain the principle briefly, we assume that when the fan speed is 60 laps per minute (in reality, the speed is much higher), the human eye will have visual persistence. Let's assume that the LED light is 0 degrees above the fan in 0 seconds. If you want to display the effect of 6:00 on the fan, the minute hand needs to point to the top and the hour hand needs to point to the bottom. It is necessary to turn on the number 1-20 to display minute hand in 0 second, turn on the number 1-10 to display hour hand in 0.5 second, turn on the number 1-20 to display minute hand in 1 second, turn on the number 1-10 to display hour hand in 1.5 second, and so on, so that the human eye will receive a complete picture of the clock at 6:00. For complex patterns, LED fans will have more complex structure and programming equipment. Through the combination of LED light bar rotation and visual persistence, people will see a dynamic 3D picture of the rotating LED fan.
3D holographic fan screen structure: the screen body mainly has light bars and, according to different ones, some have two. Add rotary motor, built-in 3D holographic system and information receiving system.
At present, the main application of 3D smart screen is advertising. Because of its editability and realistic display effect, it is believed that in the near future, it will be applied in more fields.
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