LVDS Cables – LVDS (low voltage differential signal) cables are often used as an economic way of connecting TFT displays to their driver boards. Using low power, the LVDS cables utilise twisted pairs to send out the signal from the PCB to the display over distances as high as 10 metres.
The connectors are typically fine pitch, usually under 1 mm, and consequently accept small gauge wires. This results in a very low-profile and flexible cable assembly, enabling routing from the tightest of units.
eDP Cables – eDP (embedded DisplayPort) cables are starting to supersede LVDS as the cable assembly of choice for connecting driver boards to TFT displays. They normally use the same digital signal processing protocol as DisplayPort cables, but in a smaller physical connector.
Often created from micro-coax cable, eDP cable assemblies require fewer connections than LVDS. In addition they offer all power, data and control signals through one assembly. Where LVDS assemblies could require 18 signal wires, LVDS Cable would only use five.
The coaxial cable was invented in 1929. However, its commercial use started only in 1941. Coaxial cables include round, cylindrical shaped wires which can be covered by a spacer, a cylinder shaped sheath which is encompassed by an insulating jacket. Coaxial cable is actually an electrical cable and is also employed to transfer high frequency signals. The electromagnetic field generated is present in between the interior and also the outer conductors. There exists therefore less interference from outer electromagnetic fields. This sort of cabling is utilized for industries like cable television and networking. Coaxial cabling is a bit more costly than normal telephone cabling. However, it really is preferred since it allows maximum transmission of information and knowledge with all the least interference.
These cables are normally of 2 types- flexible and rigid. Rigid cables contain solid form of sheath and versatile cable includes braided type sheath of copper. The inner insulator (or dielectric) affects the cable’s properties, like attenuation and impedance. RF connectors are utilized to connect the ends of coaxial cables. Dielectric could be solid or perforated with small holes.
The RF connector is a short and a rigid type of cable obtaining the same impedance as that relating to cable that it is associated. However, the dielectric might not be same. The connectors with high quality are typically coated with gold, but lower quality cables are coated with nickel. Silver is also used (only in the event of high-end connectors) as the conductivity is really good. Silver plating normally requires additional coating due to its oxidation in air.
A full listing of the various form of coaxial cable are available at category5-cable.com/plenum-cat-5.html, and are summarized below: Hard Line – These are the basic powerful cables with rigid outer shield and with minimum loss. Normally used to connect a transmitter and an antenna. These cables includes high dielectric in high temperature too.
Tri axial – Cable with three layers of shielding and also the outermost shielding protecting the inner layers from from outer electromagnetic interference. Twin axial – This cable is made up of twisted pair covered tmcaao a shield. Bi axial – Consists of two 50O coaxial cables used for networking. Semi rigid – This is a coaxial cable with solid outer copper sheath.
Short form of coaxial cables are simply used for home video, ham radio and a few small computer networks while long coaxial cables connect radio or television networks. Micro coaxial cables are used by the military or medical use. Micro coaxial cables are used in a selection of consumer devices, military equipment and in addition in ultra-sound scanning equipment. The cables with impedances of 50/52 and 75 ohms are generally used. 50/52 ohm cables are normally employed for commercial purposes while 75 ohm cables are used for domestic purpose.