Which is better LCD video wall or LED video wall

Advantages and disadvantages of video wall ① the unit of seamless display screen is the unit board, on which light beads with different size spacing and different number of stars are distributed. If you want to assemble a large screen, you need to splice multiple unit boards together, and it has no splicing obstacles. The seamless connection of each board does not have a frame like the LCD video wall, so it is troublesome to splice. ② Waterproof and sunscreen: the LED structure makes the LED display screen waterproof and sunscreen, so the brightness of the display screen can be adjusted freely. Under different lighting conditions, such as outdoor facing the sun and back to the sun, the brightness is completely different. In order to make the screen clearly visible, it is necessary to adjust its brightness. (2) Disadvantages ① low resolution: the resolution of LED display screen is far lower than the spacing of LCD video wall, and the resolution of products can not be compared with LCD video wall. The direct consequence is that led will appear mosaic phenomenon when displaying images. When looking up, the text is composed of squares, and the picture definition is poor. Low contrast: low contrast will lead to insufficient brightness and layers of the picture, so the picture is not good, which is not as good as the LCD video wall. ③ the failure rate is high, the lamp beads on the display screen will fall off and die, and the comparison frequency will increase the after-sales rate and talent. ④ auxiliary cooling is needed: if it is installed outdoors, sometimes the temperature of the LED display screen will be higher. In order to achieve rapid heat dissipation, air conditioning will be installed, which is equivalent to increasing the cost

2. Advantages and disadvantages of LCD video wall (1) advantages ① high resolution: one advantage of liquid video wall is high resolution. The resolution after splicing can be superimposed, so full high-definition display can be realized. ② Suitable brightness: the brightness of liquid video wall is the same as that of TV, which is suitable for long-time viewing without glare. If you use the LED screen indoors, you will feel high brightness and hurt your eyes. ③ high contrast: the light and dark contrast is strong, and the picture is rich and delicate. ④ Stable and durable: the use rate of LCD video wall in later maintenance is low, which can greatly reduce the later use cost of liquid screen. (2) Disadvantages ① there are seams: the traditional LCD video wall is limited by the LCD panel itself, and there will be a frame around the screen. In this way, a splicing gap of several millimeters will be formed after splicing, which looks like a black edge. If it is full screen display, it will affect the viewer's experience; The seamless video wall only realizes the effect of physical elimination of splicing, and cannot be truly seamless. ② it can only be used indoors: the LCD video wall is mainly liquid panel, with electronic components inside, which is not waterproof, and can only be used in indoor dry environment. It can be seen that the two display screens have their own advantages and disadvantages. In terms of display effect, the liquid video wall is better, but the ED display also has the advantages of wider application fields, How to choose depends mainly on the use occasion and actual needs