We usually in the use of display connection lines used is the VGA line and DVI line, VGA line application more than. We actually when using the display connection lines and pay more attention to environmental foundation display picture quality effect and the connecting line when using. From the two main aspects we have a look is good or VGA DVI line.
DVI line using digital transmission interface to transmit digital video signal, the VGA line is the use of analog signal transmission interface.
Both in the transmission of signals to the final display to display the whole process, using the DVI line can provide 8GPS transmission rate, signal without DAC is directly transmitted to the display to display a picture, no delay nondestructive quality.
Using the VGA line is required through a digital signal into analog signal transmission in the VGA line, and the analog signals must pass through the display device is converted into digital signal can be displayed on a display device, signal the process carried out from digital to analog, converted from analog to digital, lost some signal is inevitable in the conversion in the process, in the display device will show the picture detail loss.
From the actual 1080P on the display device contrast to see, can not see the so-called image details are lost, so do not see the VGA line and DVI line both have obvious difference in the quality of. In many TV, not only have DVI interface, VGA interface, but in real time using the VGA interface can only support 1024*768 resolution images, zoom in to fill the screen image severely damaged, this is not the VGA line does not support 1080P HD, but some HD TV did for VGA signal transmission install enough graphics card memory capacity support.
So in actual use, based on our own display equipment used to choose DVI line or VGA line, double channel DVI line can realize the function of 3D, so if 3D display device with a DVI interface, you can choose to use the DVI24+1 line; if the device has enough explicit deposit cards, such as some high configuration computer, display can reach to 1080P, you can use the VGA line; if you are using a high-definition television, not knowing if it with the memory of the circumstances, it is best to use a HDMI cable to connect to. Finally also involves all the question of price, so demand to choose the best.