The indoor LED display screen has good display effect and visual experience. In large hotels and large department stores, it is extremely easy to get the favor of advertisers. Do you know what to pay attention to when selecting indoor full-color LED display?
The advantages of ordinary rear projection display are small pixels and high resolution, but the disadvantages are low brightness, small angle of view, and short lens lamp life (only a few thousand hours). The advantages of DLP are small pixel size and high resolution. The disadvantages are that there are connectors, which can reach 1mm. The rear projection and plasma display are suitable for close viewing. For indoor full-color LED display, the advantages are high brightness and no seams, while the disadvantages are coarse pixel particles and low definition. At present, the economic models of commercial indoor full-color LED screens are P5 and P6, and other models include P3 and P4. When purchasing indoor full-color LED display, we can consider the following aspects.
1. LED tube core. Like the outdoor full-color LED display, it is generally recommended that the LED of the indoor full-color LED display adopt the light-emitting tube with high quality assurance package, and the product is recommended to use the tube core of Nichiya in Japan and CREE in the United States.
2. Packaging form. The advantages of surface mount packaging 3528, 2121 and 1010 are large angle of view, good luminous consistency, and easy to automatic welding and processing. It is the mainstream product of full-color LED display.
3. Density. Because the indoor full-color LED chip is hot and the control circuit density is high, the commercial full-color LED display point density cannot be very high. At present, P3, P4, P5 and P6 are widely used in the market, and are relatively economic mainstream products in the low-end market.
4. Driving mode. The indoor full-color LED display adopts constant current drive and dynamic scanning mode (mainly 1/4, 1/8 and 1/16 scanning modes).
5. Refresh frequency. Increase the refresh rate so that there is no flicker or tail when the camera is shooting.