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This article mainly introduces the main technical indicators of the display, has a certain reference value, friends in need can refer to. Let's take a look at it with me.

One of the main technical indicators of the display is "resolution". Resolution refers to the sum of the pixels that make up the image, that is, the number of pixels contained on the screen; it is generally expressed as the product of the horizontal resolution (the number of pixels in a scan line) and the vertical resolution (the number of scan lines). The higher the resolution, the more pixels the picture contains, and the more delicate and clear the image is.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

One of the main technical indicators of the display is ()

A. Resolution

B. brightness

C. Color

D. contrast

Correct answer: a

The main characteristics of the display are: pixel and dot distance, resolution.

A display (display) is often referred to as a monitor. The monitor belongs to the Istroke O device of the computer, that is, the input and output device. It is a display tool that displays a certain electronic file on the screen through a specific transmission device and then reflects it to the human eye. It can be divided into CRT, LCD and other types.

Technical parameters:

Resolution

Resolution refers to the sum of the pixels that make up the image, that is, how many pixels the screen contains. It is generally expressed as the product of the horizontal resolution (the number of pixels in a scan line) and the vertical resolution (the number of scan lines). For example, 1920 × 1080 means that the horizontal direction contains 1920 pixels, the vertical direction is 1080 pixels, and the total number of pixels on the screen is the product of them. The higher the resolution, the more pixels the picture contains, and the more delicate and clear the image is. The resolution of the display is affected by the size of the display, (picture tube point distance), circuit characteristics and so on.

Grid distance and point distance

Grid distance refers to the distance (in mm) between gratings parallel to the picture tube of the vulva type. The advantage of using a vaginal picture tube is that its grid distance will not be deformed even if it is used for a long time, and the picture quality of the display will not decline even if it has been used for many years.

Dot distance (or fringe spacing) is a very important hardware index of the display. It refers to the distance between a luminous point of a given color and the nearest glowing point of the same color, which cannot be changed by software, which is different from the resolution. At any same resolution, the smaller the point distance is, the clearer and finer the displayed image is, and the higher the resolution and image quality is.

Bandwidth

Bandwidth is a very important parameter of the display, which can determine the performance of the display. The so-called bandwidth is the abbreviation of the passband width of the display video amplifier. The bandwidth of a circuit actually reflects the response speed of the circuit to the input signal and the image resolution ability of the display. The wider the bandwidth is, the smaller the inertia is, the faster the response speed is, and the higher the allowable signal frequency is, the smaller the signal distortion is. The unit of bandwidth is MHz, which can be calculated by the formula of "horizontal resolution × vertical resolution × refresh rate".

Refresh rate

The refresh rate of the monitor is divided into vertical refresh frequency and horizontal refresh frequency. Vertical refresh frequency, also known as field frequency, refers to the number of times the display repeatedly refreshes the display screen per second, expressed in Hz. The frequency of this refresh is commonly known as the refresh rate; the horizontal refresh rate, also known as Horizontai scanning trequency, refers to the number of times the monitor scans the horizontal line per second, the unit of kHz; vertical refresh rate field frequency (Vertical scanning frequency) is MHz, which is determined by the horizontal refresh rate and screen resolution, and the vertical refresh rate represents the number of times the screen image is redrawn per second, that is, the number of screen refreshes per second.

These are the details of the main technical indicators of the display. Is there anything to gain after reading it? If you want to know more about it, welcome to the industry information!

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