What is the difference between LCD video wall and traditional projection?
What is the difference between LCD splicing screen and traditional projection?
1. Display screen size
The LCD video wall is a splicable product. The number of splicing can be arbitrarily selected according to the size of the conference room. The size of a single screen is basically about 50 inches. If you want to maintain a 16:9 screen ratio, you can use 2*2, 3 *3, 4*4 and other splicing methods, the area of the display screen can be large or small.
Although the projection screen has a size, it is relatively fixed and cannot be changed according to the size of the room. This is indistinguishable in some small conference rooms. If it is used in some conference rooms with more than a few hundred square meters, it will be difficult to see from a distance. Can't see what's on the screen.
2. Different resolutions
The resolution of a single screen of the LCD video wall can reach 1920*1080. After 4 pieces of splicing, it can reach 4K resolution display. It can play most of the current high-definition film sources, such as 1080P pictures, 4K 3D movies, etc. can achieve the best playback effect. The resolution of the projection is not as good as that of the LCD. It simply projects the content on the computer onto the screen, which cannot meet the high-definition standard.
3. Contrast and brightness are different
The contrast ratio of the LCD splicing screen can reach 4000:1, and the brightness is above 500cd/m2, so the whole picture is richer when displaying the image, and the color contrast is also very strong, which is basically the same as we usually watch TV.
However, the image we see in the projection is a bit whitish and the contrast is low. Especially when there is a light next to the screen, it is easy to see the content on it. It is necessary to turn off the light. poor.
4. Different functions
The LCD splicing screen can realize cross-screen, superimposed roaming, segmentation and other functional displays on the basis of splicing, and can simultaneously meet the delivery of multiple computer signals. In addition, it can also realize the finger touch function through the infrared touch frame, which is more functional. The projection can only cast a picture through a computer, the function is very simple.