Full-color led display screens are widely used in different fields indoors and outdoors. The design and construction of many projects often involve led display screens. So how to choose and identify led display products has become a headache for many people. Careful use of poor quality led display screens, the loss is huge, today Winbond Yingguang Optoelectronics will learn with everyone how to distinguish the quality of led display screens.
Full color led display
As we all know, the led display screen is spliced by modules, so the flatness of its surface is very important, it needs to be kept within ±1mm, otherwise the image is prone to distortion, if there are local protrusions, there will even be dead corners, extremely Affects the viewing effect, so the flatness of the led display is a key point to measure its quality, and it is also a test of the production technology of the led display manufacturer.
The second is the dead spot on the large led display screen. The dead spot is also called the always bright or always black spot. If there are many dead spots on an led display, it means that its die is not good, and the display effect will be greatly reduced; Speaking of display effects, the color reproducibility of the led display is also very important. If the playback content of the playback source cannot be restored to a high degree, it will inevitably affect the user's viewing experience.
Full color led display
In addition, the mosaic phenomenon on the LED display, that is, the small four squares are always bright or black, which indicates that the module is necrotic. The main reason is that the quality of the connectors used in the display is not good; there is also the color block. Color block refers to the obvious color difference between adjacent modules. The color transition is based on the module. The color block phenomenon is mainly caused by poor control system, low gray level, and low scanning frequency. .
Finally, there are white balance effects, viewing angles, etc. The white balance effect is one of the most important indicators of the display. Generally, pay attention to whether the white color has a bluish or yellowish-green phenomenon. The quality of the white balance is mainly determined by the control system of the display, and the die also has an impact on the color reproduction.
The size of the viewing angle directly determines the audience of the led display screen, so the larger the better. The size of the viewing angle is mainly determined by the packaging method of the die.
The led display screen plays an indispensable role in the development of our lives, and it meets the needs of large-screen terminals in different fields, which brings great convenience. The above are some key factors for distinguishing the quality of the led display screen.
