Application analysis of high transparent LED glass curtain wall display in the field of "construction media"

First, the technical background

The high-rise buildings in the city are very ideal outdoor advertising carriers. People use LEDs, lasers, projections and other technical means to make the whole building a three-dimensional optical advertising carrier. This technology is called “architectural media”. Technology has become popular in Europe and America in recent years. At the same time, we have realized that modern urban buildings, especially new buildings, have a large proportion of glass curtain wall structures. How to turn these glass curtain wall buildings into “building media” and exert its commercial value is a very The hot technical issues, the technical problems it needs to solve are:

(1) Avoid damage to the appearance and structure of the glass curtain wall;

(2) maintaining the permeability of the glass curtain wall;

(3) Let the construction media achieve the strongest performance.

Second, the existing technology

In order to resolve the above contradictions, various solutions have emerged in the market.

(1) LED pixel light, guardrail tube LED pixel light, guardrail tube are the most common technical means used in building lighting. The products are generally installed on the outline of the building or the joint of the glass curtain wall unit. This method is low in cost and installation. Convenient and simple to control, but at the same time the performance is very limited. Even if the façade of the whole building is full, it can only display simple patterns and text information, and it is far from achieving the desired performance.

(2) The box-type LED display box-type LED display screen is installed on the exterior wall of the building, and the screen resolution is high, and the screen has a fairly clear visual effect. However, the structure of the box type is very heavy (40-70kg/m2), and an additional design of the steel frame structure is required for installation, the cost is high, the load on the external wall is large, and the light is not opaque, so that the glass curtain wall loses the lighting function. When the LED display is not lit, the LED display is like a black wall, which greatly affects the appearance of the building.

(3) Grid-type LED display grid type LED display has certain permeability, which can ensure the lighting effect of about 40% of the glass curtain wall, and can be installed in a large area. The disadvantage is that the resolution is very high. Low, because the pixel spacing is generally above 40mm, and some can reach 60mm---100mm to ensure a certain permeability, the screen can not achieve a clear picture display. At the same time, the large-area outdoor installation has high requirements for construction and maintenance, and the cost is high. The design of the building needs to consider the load bearing and installation and maintenance of the screen. (4) Projection The technology of projecting the screen onto the wall of the building using the projector is also applied. However, it is well known that the current projector has a low lumen, and the life of the bulb is short and expensive, and the projector is difficult to project in a large range. Its application in the field of "construction media" is relatively small and will not be described here.

Third, ultra-clear LED display technology

A new ultra-clear LED display technology with 70%-95% permeability and a panel thickness of only 10mm. The LED unit panel can be mounted close to the glass from behind the glass. The unit size can be customized according to the glass size. The perspective has little impact and is easy to install and maintain, making it ideal for applications in the "Building Media" field. Project case, left picture: appearance of the building when the screen is not bright, right picture: display effect when the screen is bright. The design of the LED display technology greatly reduces the blockage of the structural components to the line of sight and maximizes the perspective effect. At the same time, it has a novel and unique display effect. The audience is watching at an ideal distance, and the picture is suspended above the glass curtain wall. When playing an advertisement on such a screen, when designing the advertisement content screen, the unnecessary background color can be removed, replaced with black, and only the content to be expressed is displayed, and the black portion does not emit light during playback, which is a transparent effect. This method of playback can greatly reduce light pollution, while also reducing energy consumption, and can achieve more than 30% energy saving than ordinary LED displays.

Advantages and features of the new ultra-clear LED display device:

(1) It has a very high perspective rate, which ensures the lighting requirements and viewing angle range of the lighting structure between floors, glass facades and windows, and ensures the original lighting perspective function of the glass curtain wall.

(2) No space is occupied, the thickness of the main board is only 10mm, and the weight of the display screen is only 12Kg/m2. It is not necessary to change the structure of the building, and it is directly pasted on the glass curtain wall.

(3) No need for steel frame structure, saving a lot of installation and maintenance costs, indoor installation indoor maintenance, and its simplicity.

(4) The unique display effect, because the display background is transparent, can make the advertising picture give people the feeling of floating on the glass curtain wall, with good advertising effect and artistic effect.

Fourth, the market application potential

We believe that the new ultra-clear LED display has opened up a new application field and has broad market prospects. It is especially suitable for the field of “construction media”, which caters to the needs of an emerging market and successfully creates a high-quality outdoor. media resources. According to statistics, the total area of ​​China's modern glass curtain wall has exceeded 70 million square meters, mainly concentrated in urban areas. Such a huge glass curtain wall is a huge potential market for outdoor media advertising. The advertising value of this market is not yet available. It has been fully developed, and the glass curtain wall is a new blue ocean field in the case of urban outdoor advertising resources are increasingly exhausted. The scope of this field is very wide, such as urban landmark buildings, municipal buildings, airports, automobile 4S shops, hotels, banks, chain stores and other glass curtain wall buildings with commercial value.