Previously introduced to the display panel, then let the display display, in addition to the power cord, the other is the display data cable, there are currently three main types, HDMI cable, VGA cable and DVI cable. Now basically choose a display with HDMI interface (HD interface), then it is very important to choose a good HDMI cable.
1.HDMI interface version
To select an HDMI cable, first look at the version number of the HDMI interface. The HDMI interface version is different, the bandwidth and supported technologies are also different. Currently, the HDMI cable and the HDMI interface can be divided into 1.3 to 2.0 versions, and the high version can be compatible with the low version. Therefore, it is better to select the HDMI cable and the HDMI interface. Match, at least not lower than the version of the interface. If it is lower than the version of the interface, it will not be able to transmit HD effects. On the contrary, if it is higher than the interface version, although it can be used, you can spend more.
2.HDMI cable certification
HDMI cable is standard, so if there is a certification mark, there will be no problem in quality. There are currently two kinds of certifications, one is HDMI authentication, and the other is Sinplay authentication. Of course, if both certifications are available, it is the best.
3.HDMI cable connector
HDMI cable connectors are typically gold-plated and non-gold-plated. Gold-plated connectors have better corrosion, conductivity and high temperature resistance. Therefore, in normal terms, the wire with gold-plated joints will be better. Many gold-plated joints on the market use 24K gold plating, which is relatively bright and easy to distinguish. But it doesn't mean that it is very bad if it is not gold-plated, because the PIN pin inside the HDMI connector is the final connection point during the use. This is the main connection point.
This PIN pin is mainly made of tin bronze. When it is made, it will be nickel-plated on the PIN pin and then gold-plated. Therefore, if you work better on the HDMI cable, look carefully at the PIN pin and you will find three Floor.
4.HDMI cable process
The core of the HDMI cable is very important. The best copper core at present is that the transmission capacity and transmission quality of the copper core are very good, which can prevent the signal from being disturbed, and the signal will not have too much loss during transmission. There is also a core made of alloy and iron, which is of course worse. If you want to distinguish this, you can only open it, but there should be few people who will buy a cable to remove it, so I will introduce you to a relatively simple method. You can bend the HDMI cable and bend it several times. If it is soft, it is the copper core. If it is hard, it is the inner core of the alloy and iron. However, be careful not to bend too much. The inner core of the alloy and iron is easy to break.
Of course, the core of the current HDMI cable has also developed, and some directly use optical fiber as the core. The advantages of using fiber are not mentioned here. Today's broadband is basically fiber, so everyone should know very well. Of course, the HDMI cable of the fiber core is very expensive. If it is not bad, it is recommended to use the fiber core. HDMI cable, if you need a longer HDMI cable, you should also choose the fiber core, ordinary users generally choose copper core.
5.HDMI cable thickness
HDMI cable is thick, some fine, how to choose? Normally, the same brand, the thicker the cable, the better the transmission performance, and more stable, but it is best to choose the brand cable, some of the miscellaneous cables are added a bunch of miscellaneous things, so that the cable looks thicker Therefore, it is best to choose the brand when choosing HDMI cable. Foreign countries are generally Magic Sound, cable Saint, BG, Gefen, Philips, SONY, and domestic is generally Kaiboer Kaiboer.
The fine HDMI cable is absolutely unusable. When the cable is used for data transmission, the signal will be poor. The HDMI cable cable gauge (AWG), the larger the number, the finer it is. This should be noted when purchasing, such as the same When branding, 20AWG will be better than 30AWG.
The production cost of the HDMI cable is relatively high, so the more expensive it is, the better, but the premise is that the quality has to pass, how to choose an HDMI cable, I believe that after reading the above content, everyone is also very clear, first of all, the version is appropriate, and secondly for you. The use environment, and then the brand and quality of the cable must be guaranteed, if the above conditions are met, it is a good HDMI cable.