A computer monitor is a device that provides a screen for connection to a computer. Although, it is based on the same technical basis as a screen for display of television and video data, it is different in standardization. This distinction is not absolute because there is an increasing number of LCD/LED monitors which are also suitable for television.
Technical types according to the type of imaging procedure
By using different phosphors, computer monitors of TV sets differ by color space. There is also a different standardization: YUV color model in the TV, the RGB color space in the computer monitor.
While in the computer monitor, the pixels are square (pixel aspect ratio of 1:1), they are rectangular in SDTV screens to achieve an aspect ratio of 4:3. At 1920×1080 square pixels, the HDTV aspect ratio of 16:9 is achieved. However WUXGA monitors (VESA standard) have 1920×1200 pixels (16:10).
Vector based screens, such as an oscilloscope, to cathode ray tubes work without pixel mask. You can display and refer to special systems for continuous images and can be maintained by Computer Repairs Richmond.
Data transmission
The connection of a TFT monitor is not just a matter of compatibility, but also the quality of the image. DVI is a digital interface for video cards and monitors (Digital Visual Interface). VGA is the analog interface.
The graphic data is digitally processed in the PC, which is then converted into the graphics card to analog signals. A TFT monitor requires digital signals to display images. If a TFT monitor is powered via a VGA port, an analog-to-digital converter must translate the analog signal into a digital signal on the monitor.
By converting the quality of the image, it is more or less attenuated, depending on the components used. Slight blur and flicker can be the result. The best combination is a graphics card with DVI digital output and a monitor with a DVI input.
Per DVI -VGA adapter can also be a TFT monitor, which only has a VGA port, and can be operated on a graphics card with a DVI port, but with this method, the image will still be applied by analogy.
Analog data transmission
Here the line and frame synchronization signals are transmitted from the computer (graphics card) , while these are reconstructed in the TV from the blanking intervals of the video signal, which is a staple for Computer Repairs Richmond.
VGA (Video Graphics Array)
The VGA port is an analog image transmission standard for plug and cable connections between the graphics card and the display devices. The analog VGA signal is generated by the RAMDAC graphics card.
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