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In outdoor advertising market, LED large screen advertising with aptness target consumption group has a strong, strong visual impact performance, advertising update flexible, low cost of one thousand people, huge audiences, coverage, higher advantages, has become the important media of outdoor advertisement.
LED display four big advantage
1, the area of ductility, large LCD area is difficult to achieve seamless splicing, LED display can be arbitrary extension, and realize seamless splicing.
2, LCD, plasma screen flux decay quickly, generally run around one and a half years time, just need to change, but the LED display screen under the same operating conditions for at least five years no problem.
Brush 3, LED screen machine can use interactive technology, strengthen the brush screen machine as advertising media and audience interaction, such as cloud technologies to implement custom touch screen, broadcast control management, etc.
4, in terms of displays, LED display, high brightness, wide viewing Angle, and good color reproduction ability is better than that of the LCD screen. LED brush screen machine is generally used in airports, shopping malls, hotels, high-speed railway, subway, cinema, exhibition, office, etc., the target customer consumption ability is strong, has the huge advertising value.
LED display quality identification of choose and buy
Professional development, design, strict production management, the enterprise from the selection of components, materials, and advanced automation machinery, to the production process of strict quality control (including the middle parts of aging treatment), each link affects the quality of the LED display.
1, the flatness. LED display surface roughness to within + / - 1 mm, to ensure that the display image is not distorted, local convex or concave leads to display the visual Angle of corner. The stand or fall of flatness is mainly decided by the production process.
2, brightness and the viewing Angle. Indoor full color brightness to above 800 CD / ㎡, outdoor full color brightness to above 1500 CD / ㎡, in order to guarantee the normal work of the screen, otherwise it will because the brightness is too low and can't see shown in the image. Mainly by the size of the brightness of LED tube core is good or bad decision.
Viewing angles directly decide the size of the screen of the audience, and the bigger the better. The size of the viewing Angle is mainly composed of tube core encapsulated way to decide.
3, white balance effect. The white balance effect is one of the most important indicator display. Chromatology on red, green and blue color for the proportion of 1:4. Lost. 16 will only show the pure white, if the actual rate is a little deviation will appear white balance deviation, generally pay attention to whether there is a slant blue, white slant yellow phenomenon. The stand or fall of the white balance is mainly composed of display control system to determine, tube core of color reducibility may also be affected.
4, color reducibility. Color reducibility is refers to the display of color reducibility, the color of the display shows both to maintain highly consistent with the colour of the source, so as to ensure the image sense of reality.
5, for the Mosaic, dead center. Mosaic refers to the Chang Liang appear on the screen or often black small four squares, both module necrosis phenomenon, the main reason for the display of connectors quality closes nevertheless. Dead point refers to the LED display screen Chang Liang or black often a single point, how many of the dead point mainly determined by the stand or fall of pipe core.
6, the presence of color piece. Color piece is refers to the adjacent modules between relatively clear off color, color transition in module, color piece phenomenon caused mainly by the control system is poorer, grey level is not high, caused by lower scanning frequency.