Monitor technical parameters

1. Resolution
Resolution refers to the sum of pixels that make up an image, that is, how many pixels the screen contains. It is generally expressed as the product of horizontal resolution (the number of pixels in a scan line) and vertical resolution (the number of scan lines). For example, 1920×1080 means that the horizontal direction contains 1920 pixels and the vertical direction contains 1080 pixels. The total number of pixels on the screen is their product. The higher the resolution, the more pixels the picture contains, and the more detailed and clear the image is. The resolution of the display is affected by the size of the display, (pixel pitch of the picture tube), circuit characteristics, etc.
2. Grid pitch and dot pitch
The grating pitch refers to the distance (unit mm) between parallel gratings of a cathode picture tube. The advantage of using a cathode picture tube is that its grid pitch will not deform after being used for a long time, and the monitor will not suffer from deterioration in image quality even after being used for many years.
Dot pitch (or stripe pitch) is a very important hardware indicator of a monitor. It refers to the distance between a luminous point of a given color and the nearest adjacent luminous point of the same color. This distance cannot be changed by software, which is different from the resolution. At any same resolution, the smaller the dot pitch, the clearer and more delicate the displayed image, and the higher the resolution and image quality.
3. Bandwidth
Bandwidth is a very important parameter of the monitor and can determine the performance of the monitor. The so-called bandwidth is the abbreviation of the display video amplifier passband width. The bandwidth of a circuit actually reflects the circuit's response speed to input signals and the resolution capability of the display. The wider the bandwidth, the smaller the inertia, the faster the response speed, the higher the signal frequency allowed to pass, and the smaller the signal distortion. The unit of bandwidth is MHz, and its value can be calculated using the formula "horizontal resolution × vertical resolution × refresh rate".
4. Refresh rate
The refresh rate of the monitor is divided into vertical refresh rate and horizontal refresh rate. The unit of vertical refresh rate (Vertical scanning frequency) is MHz, which is determined by the horizontal refresh rate and screen resolution. The vertical refresh rate indicates how many times the screen image is redrawn per second, that is, every second The number of screen refreshes, the horizontal refresh rate, is called Horizontai scanning trequency. It refers to the number of times the monitor scans horizontal lines per second, and its unit is kHz.
According to news on February 1, 2022, BOE demonstrated the world's first 27-inch oxide FHD 500Hz ultra-high refresh rate display, setting a new record for display refresh rate.