This section provides an overview for display adapters as well as their applications and principles. Also, please take a look at the list of 3 display adapter manufacturers and their company rankings.
Table of Contents
Wireless display adapters are devices that enable wireless communication between a PC and a display. The wireless display adapters must be installed on both the PC and the display.
When connecting wirelessly, the screen and audio are compressed in H.264 format and transmitted, so please be aware that the image quality will be degraded. Also, delays are more likely to occur compared to physical cable connections.
When connecting, for example a PC to a monitor display or a Blu-ray player to a TV, the image output side sends image data to the display side through a certain port. At this time, there is no particular problem if the port on the output side and the display side are the same, but if they are different, it is necessary to send data via a port conversion adapter. This port conversion adapter is generally called a display adapter
It may also refer to the graphics board driver of a PC OS such as Windows 11, but here we will discuss the former.
As already mentioned, if the connection port types of the image output device and the image display device are different, the image output device and the image display device cannot be connected. In such cases, if the port on the image output side can be converted to the port on the image display side, the image output side and the image display side can be connected to each other and images can be displayed on the image output side device.
A display adapter is used in such a case and converts the output side port to the display side port. There are many types of display adapters, so you need to choose the correct one.
Various types of display ports not only differ in port shape, but also in signal format.
Each display port has its own differences in output resolution, output frequency, audio input/output, and copyright protection. It is possible to convert a signal from a port with lower functional performance to a higher port, but it should be noted that the signal content will not be converted to match the higher functional port (eg, analog image quality will not be converted to digital image quality, or a low-resolution image will not become high-resolution).
It should also be noted that some inexpensive display adapters may not be able to provide the port's prescribed performance. It is recommended that you purchase a display adapters with the latest chips, especially when connecting to recent 4K displays.
There are various types of display adapters, such as HDMI to DisplayPort and VGA to HDMI, depending on the communication standard to be converted to each other.
VGA to HDMI display adapters are often used to connect older PCs to newer displays. Older PCs often have only VGA ports, an older standard, and must be converted to HDMI or other formats to connect to newer displays. Depending on the type of port, a display adapter can convert the signal to HDMI format to improve resolution. Another advantage is that the load on the PC is reduced because the signal conversion processing is performed on the display adapter.
In addition, an increasing number of recent notebook PCs use only USB type C as an output port. In such cases, a USB type C to HDMI or USB type C to DisplayPort display adapters must be used for external screen output. USB type C to DisplayPort display adapters are required.
*Including some distributors, etc.
Sort by Features
Number of Employees
Newly Established Company
Company with a History
This is the version of our website addressed to speakers of English in Canada. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.