Advantages of DVI HD Matrix Signals
The advantages of DVI high-definition matrix signals:
1 provides the best image quality:
In the VGA signal display, the image quality of the notebook is the highest. The CPU will display the data to be displayed on the graphics card. After the graphics card is processed to form a graphic signal (digital signal) to be displayed, the digital signal is directly driven to the LCD screen to form the display signal of the notebook. This is the most "original" signal. After any treatment and loss. After the graphic signal (digital) is converted by D/A to form an RGBHV signal, it needs to go through the A/D process when it reaches the display device, regenerate the digital signal, and drive the LCD and other devices. The signal at this time goes through D/A, D/A conversion results in losses in terms of bandwidth, signal-to-noise ratio, etc. For example: According to the Nyquist sampling principle, the maximum analog bandwidth is only half of the sampling clock, and the signal-to-noise ratio is only about 56dB (by 8bit quantization) . However, if the graphics signal (digital) is subjected to parallel/serial conversion to form a DVI signal output and then transmitted to the display device via the DVI, the serial/parallel conversion is only required to directly drive the LCD and other devices. This process does not pass through A. /D, D/A conversion will not cause signal loss.
2 reduces the loss of the signal in the transmission process:
During the transmission of analog signals, due to the amplitude and frequency stability of the transmission system, high- and low-frequency interference, power ground interference and reflection, etc., the signal loss is severe. It is very difficult to solve and deal with the above problems in the project. Some can't even be solved. However, these problems do not exist during digital signal transmission. The greatest advantage of digital transmission lies in its strong anti-interference ability and reconstruction. In simple terms, as long as the error in "0" and "1" is not detected in the transmission process, no error occurs. The signal at the receiving end is correct and lossless. The problem that is difficult to solve in analog transmission does not exist in the digital transmission process. This is a solution that fundamentally solves the problem, ensuring that the signal reaching the display device is the same as the signal displayed by the notebook. , Give full play to the advantages of display devices, and obviously improve the display effect of the entire system.
1 provides the best image quality:
In the VGA signal display, the image quality of the notebook is the highest. The CPU will display the data to be displayed on the graphics card. After the graphics card is processed to form a graphic signal (digital signal) to be displayed, the digital signal is directly driven to the LCD screen to form the display signal of the notebook. This is the most "original" signal. After any treatment and loss. After the graphic signal (digital) is converted by D/A to form an RGBHV signal, it needs to go through the A/D process when it reaches the display device, regenerate the digital signal, and drive the LCD and other devices. The signal at this time goes through D/A, D/A conversion results in losses in terms of bandwidth, signal-to-noise ratio, etc. For example: According to the Nyquist sampling principle, the maximum analog bandwidth is only half of the sampling clock, and the signal-to-noise ratio is only about 56dB (by 8bit quantization) . However, if the graphics signal (digital) is subjected to parallel/serial conversion to form a DVI signal output and then transmitted to the display device via the DVI, the serial/parallel conversion is only required to directly drive the LCD and other devices. This process does not pass through A. /D, D/A conversion will not cause signal loss.
2 reduces the loss of the signal in the transmission process:
During the transmission of analog signals, due to the amplitude and frequency stability of the transmission system, high- and low-frequency interference, power ground interference and reflection, etc., the signal loss is severe. It is very difficult to solve and deal with the above problems in the project. Some can't even be solved. However, these problems do not exist during digital signal transmission. The greatest advantage of digital transmission lies in its strong anti-interference ability and reconstruction. In simple terms, as long as the error in "0" and "1" is not detected in the transmission process, no error occurs. The signal at the receiving end is correct and lossless. The problem that is difficult to solve in analog transmission does not exist in the digital transmission process. This is a solution that fundamentally solves the problem, ensuring that the signal reaching the display device is the same as the signal displayed by the notebook. , Give full play to the advantages of display devices, and obviously improve the display effect of the entire system.
|
Portable laser marking machine is a mobile optical fiber laser marking machine, it USES optical fiber laser output laser, then high-speed scanning mirror system to achieve the marking function. The principle of portable laser marking machine is the use of high energy density laser local irradiation of the workpiece, so that the surface material vaporization or color change, leaving a permanent mark. Portable laser marking machine is for customers in the printing of large products is not easy to move, and customers feel that when marking the need to move the control part to the product, is very laborious, and not convenient to operate, so lu yue marking machine factory customized for customers this portable laser marking machine. Small laser marking machine, portable laser marking machine belong to the small laser marking machine custom equipment, different industries need to customize different types of equipment and configuration, more information and specific customized program please consult online. |
Portable Laser Marking Machine
Fiber Laser Marking Machine,Portable Metal Laser Marking Machine,Portable Mini Fiber Laser Marking Machine,Optical Fiber Laser Marking Machine
Jinan Luyue CNC Equipment Co., Ltd. , https://www.sdlycnc.com