Usually because the monitor does not support a host sent display modes are often higher than the monitor display mode, the screen image caused confusion, inability to see images and text on the screen. If you are having a pattern automatic recognition of monitor, there may be black for full color led display, but then the bottom panel indicator is green. Then you can restart the computer into safe mode, after 640 * 480 display mode to change, start again the computer can be restored. If this method does not work, can in safe mode to remove the graphics driver, then in normal mode again to install the graphics driver. Also at the time of graphics memory failure occur chaos fixed position on the display screen indoor led display, while the rest was normal. There are also individual graphics Huaping damage caused, but this probability is small. Viewing angle LCD monitor symmetrical led display, up and down is not necessarily symmetrical. After the incident the backlight by polarizers, liquid crystal and alignment layer, the output light will have the characteristics of a particular direction, that is to say, most of the light emitted from the screen with a vertical direction. If from a very oblique angle viewing an all-white screen, you may see a black or color distortion. In general, the vertical angle is less than or equal to about angles. If the viewing angle of about 80 degrees led display production tutorials, showing the screen when starting the normal position of 80 degrees can clearly see the screen image. However, due to the different range of human vision, if there is no standing within the best viewing angle, you see the color and brightness will have errors. On the market, most of the viewing angle LCD display are about 160 degrees. With the development of technology, some manufacturers to develop a variety of wide angle technology, trying to improve the viewing angle characteristics of liquid crystal displays. Indoor led display | 金锐光 electric (certified) | Chang Yang led display provided by the Science and Technology Co., Ltd. Yichang 金锐光. Yichang Jinrui Guang Technology Co., Ltd. (www.ycjrgd.com/) Hubei Yichang, Electronics & Electrical Project Cooperation leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Jinrui Guang electric leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinrui Guang electricity.