With the widespread application of LED display screen in all walks of life, most users are more and more familiar with LED display screen, but how to design a suitable display screen scheme, the details may still be unclear. To make a suitable display screen scheme design, we can comprehensively consider the following aspects.
Display purpose
Different user needs determine the different types of screens used. The single and double color information screen is relatively cheap and can be used to display text information. It is suitable for banks, shopping malls, entrance heads and monograms. The point spacing is recommended to be about P10. If there are waterproof requirements, semi outdoor or full outdoor LED display can be selected. Indoor full-color screen can be used for text information release and picture and video broadcasting. It is mainly used in conference rooms, control centers, TV studios, bars, halls, dance halls, entertainment venues and other indoor places. Outdoor full-color screen, with waterproof function, can be used for text information release and picture and video playback in outdoor occasions. It is generally used in large outdoor squares, such as stadiums, parks, squares, shopping malls, etc.
Display area
After determining the type of LED display screen, it is necessary to determine the area size of the display screen according to the on-site installation conditions. There are several important factors in planning the area size of the screen body: first, the need for display content; Second, the space conditions of the site; Third, the size of display unit module; Fourth, pixel density.
The single and dual color display screen mainly displays text information, most of which are in banner shape. The size can usually be combined with the site conditions to achieve harmony with the surrounding environment and facilitate viewing. The length and width dimension is an integral multiple of the module. The modified frame is generally made of stainless steel or aluminum profile, and the width is 3-10cm.
Full color screen is mainly used to play pictures or videos. According to the site space conditions, after the length and width of the display screen are preliminarily determined, whether the display screen area can meet the needs of the display content shall be calculated. The video picture on the screen needs at least 60000 pixels, so the resolution of the display screen should make x (row) * y (column) ≥ 60000 pixels, so that the effect can be achieved when playing the video.
Display point spacing
The determination of point spacing is mainly determined by two factors: screen area and visual distance (visual distance). Sight distance is a subjective index, which is based on the fact that the pixel particles cannot be distinguished by the naked eye and the viewing is comfortable and natural. The minimum sight distance is the distance that people can see the smooth image: sight distance of LED display = pixel spacing (mm) × 1000/1000。 The most appropriate sight distance refers to the distance that the viewer can see a highly clear picture: the best sight distance of LED display = pixel spacing (mm) × 3000/1000。 Maximum sight distance: maximum sight distance of LED display = display height (m) × 30 (Times). Generally speaking, when the display screen area is large, the display screen with large point spacing can be selected to reduce the cost under the condition of meeting the pixel demand of picture display and the minimum sight distance.
Display decorative frame
The overall area dimension of the display screen is composed of two parts, showing the net area and the frame area. Therefore, after determining the net area of the display screen, it is also necessary to determine the size of the display frame. The size of the frame is generally determined according to the screen size and site space conditions, and the overall appearance coordination is preferred. It is generally recommended that the display area is less than 10 ㎡ and the frame width is 5-10cm; Below 20 ㎡, frame 10-20cm; Less than 50 ㎡ and the frame is about 30cm; More than 50 ㎡ and the frame width is 40-50cm.
In addition, for the selection of frame material, the frame of banner screen can be made of aluminum profile or stainless steel; The frame material of indoor display screen is stainless steel plate with natural color of 1.0mm. Titanium gilt edge can be selected in high-end places, with a variety of colors. The frame of outdoor screen is less than 20cm wide, and stainless steel plate is selected; If the width is more than 30cm, aluminum-plastic plate can be selected. The back of the display screen can be packaged with aluminum-plastic plate (generally 4 cm 30 wire outdoor fluorocarbon plate of Shanghai Jixiang, the thickening specification needs to be customized, and the construction period is about 10 days). When the back area is large, 50 sandwich plate can also be selected (the cost is relatively cheap, but it is not as beautiful as aluminum-plastic plate). The installation method of aluminum-plastic plate for outdoor screen outer packaging is usually steel hanging, the gap between plates is 15mm, and filled with weather resistant silicone glue for waterproof function.
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