Material and Function Introduction of Automotive Wiring Harness
Oct 25,2022
The VGA cable was invented in 1987 and has a history of more than 30 years. Over the long years, VGA cable technology has continuously developed and improved, achieving a very high level of maturity. It is mainly used in older computer outputs, transmitting red, green, blue analog signals, and sync signals through a 15-pin connector, and is widely used in various devices. In old devices, VGA cables are indispensable. Many old monitors, projectors, and other devices only support VGA interfaces, allowing VGA cables to continue to play a role in these devices.
For example, some multimedia classrooms in schools may still be using old VGA projectors. When teachers want to use new laptops for teaching demonstrations, they need to use an HDMI to VGA converter.
The VGA cable has a certain advantage in display rate. Although it transmits analog signals, under specific resolutions and refresh rates, its display rate can meet the needs of most users.
For example, in some everyday office and general home use scenarios, the display rate of the VGA cable is sufficient to support operations like document processing, web browsing, and video playback. Compared to some emerging video interfaces, the VGA cable may not have an absolute advantage in display rate, but in some specific application scenarios, its performance is still excellent. Moreover, the fast display rate of the VGA cable makes it useful in applications that require high real-time performance. For example, in some industrial control systems where quick display of monitoring screens is required, the VGA cable can meet this need.
The VGA cable performs well at certain specific resolutions. Although with the advancement of technology, the demand for high-definition resolutions is increasing, in some specific application scenarios, lower resolutions can also meet the needs. In some public places such as supermarkets, stations, and airports, where promotional and information displays do not require very high resolutions, the VGA cable can perform well.
Additionally, for some old devices that may only support specific resolutions, the VGA cable can meet these devices' needs. For example, some early computer monitors and projectors may only have resolutions of 1024×768 or lower, and in such cases, the VGA cable becomes the best choice for connecting these devices.
VGA cables made with network cable materials have significant advantages in terms of material and wiring. The production of crystal heads is simpler than welding VGA or RGB cables, the cables are soft, and wiring is more convenient. Currently, the price difference between VGA video extenders and long-distance VGA drivers is not significant; over longer distances, cable costs are lower. Comparing interference resistance effects, VGA cables are more cost-effective. It can be said that for distances over 30 meters, VGA video extenders replacing VGA signal amplifiers have become a trend. In some large office spaces or home renovations, complex wiring operations are required.
The soft cable material and simple crystal head production method of VGA cables make the wiring process easier and quicker, saving a lot of time and costs.
From the perspective of technological development trends, although VGA cables, as an analog signal interface, lag behind digital interfaces in terms of high resolution and audio transmission, their mature technology and wide popularity make them indispensable for connecting certain old devices. Many old monitors, projectors, and other devices still rely on VGA interfaces and still serve specific scenarios such as school multimedia classrooms, small business meeting rooms, etc. In these cases, the cost of replacing equipment is relatively high, while using VGA cables for connections can meet basic needs and reduce costs.
As a professional VGA cable manufacturer, we are committed to providing high-quality, high-performance VGA cable products. With a well-equipped VGA cable factory and strict quality control, Hongli can meet the personalized needs of customers. Choosing Hongli means you will receive reliable products, excellent service, and competitive prices.