Tag: LCD TV PC signal
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LCD TV access to PC signals, there are three main purposes: watching HDTV HD video, playing computer games and simple online entertainment. So what are the requirements for LCD TVs for these operations? What problems should consumers consider when selecting them?
First of all, LCD TV access to the computer should consider the resolution setting problem. The liquid crystal display screen has a fixed physical resolution, and only the signal resolution and the screen resolution are consistent to achieve the best display state, and the advantages of high resolution of the liquid crystal are exerted. At present, the mainstream resolution of LCD TVs is 1366×768 and 1920×1080. Both are non-VESA standard resolutions, VGA interface cannot be transmitted normally, and digital interfaces such as DVI or HDMI can be manually set to achieve customization under certain conditions. Resolution.
Secondly, we can look at whether the product has a PC mode specifically set for PC access. Some well-considered models will design a PC display mode for the user to connect to the PC. In this mode, the user can connect to the computer to get a more ideal display effect. For example, automatic point-by-point correspondence can make the font clearer and sharper, or widescreen/fullscreen mode. It can make the picture not appear horizontal stretch distortion and so on.
Next, we also need to consider the audio signal transmission problem of the PC. Since most of the current graphics cards do not yet support audio decoding, the X2000 series of next-generation graphics cards that support the simultaneous transmission of audio and video are sold at a lower price, so most of the PC audio signals cannot be output from the graphics card's HDMI, DVI or VGA interface. If the user intends to use the sound system of the TV itself for sound output, the PC video interface must be equipped with a corresponding audio input interface to smoothly achieve audio and video synchronization, because the LCD TV can only play audio and video signals of the same set of interfaces at the same time.
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