Large hotels and supermarkets choose indoor LED screen matters needing attention
Time:2018-12-04
Views:141
At present, more and more LED screens are being used indoors, especially large hotels and supermarkets, which are favored by advertisers.So what are the requirements for large hotels to choose indoor full-color led screens?
In the indoor environment, the large full-color electronic display screen with an area greater than 5m2 mainly has three choices: ordinary backprojection, DLP(digital liquid crystal backprojection) and LED display.
The advantages of backprojection display are small pixel points, high definition, but the disadvantages are low brightness, small Angle of view, short life of lens lamp (only a few thousand hours).The advantages of plasma splicing are small pixel points, high resolution, but the disadvantages are patchwork, the minimum patchwork can reach 1mm at present.The backprojection class and plasma display screen are suitable for close viewing.LED display screen has the advantages of high brightness, no seam, the disadvantage is the coarse pixel particles, low definition.At present, commercial indoor full-color led display has the highest density of P4, namely 62500 pixels/m 2.LED screen is suitable for indoor places with long viewing distance.
Indoor LED screen selection, mainly from the following aspects.
(1) real pixels and virtual pixels.Like outdoor full-color LED display, the pixel number of indoor full-color LED display is also divided into real pixels and virtual pixels.
(2) pipe core.As with the outdoor full-color LED display screen, it is generally recommended that the blue pipe and green pipe of full-color LED display screen in indoor use the pipe core of silamine core, and the red pipe USES the pipe core of light lei or guang jia.The core of CREE from Japan and USA is recommended for high quality products.
(3) packaging form.Indoor full-color LED display screen LED surface form has a single light, sub-table paste, three spell a table paste and three one table paste, appearance is not the same.The advantages of the surface sticker package are large perspective, good luminescence consistency, easy to automatic welding and processing, is the mainstream of full-color led display products, but now the price is relatively high;Single light Angle is relatively small, brightness is slightly higher, the price is lower.Subtable stick is actually a single light.Single light and sub - table stick are relatively cheap, is a transitional product.
(4) density.As indoor full-color LED chips generate more heat and control circuit density is higher, the point density of commercial full-color screens cannot be very high, mainly
including P5, P6, P7.62, P8 and P10.
including P5, P6, P7.62, P8 and P10.
(5) drive mode.The driving mode of indoor full-color LED display is constant current driving, and dynamic scanning mode (mainly 1/4, 1/8 and other scanning modes) is adopted.With the same core, a quarter of the circuits used for scanning are more robust and brighter.
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