The main technical indicators of liquid crystal display
Do you know what the main technical index of LCD screen is? Today I explain its technical indicators from these 5 aspects.
1. Resolution
Resolution is the number of points displayed in the horizontal and vertical directions of the screen. For example: 1024x768, 1280x1024, etc. In 1024x768, "1024" refers to the number of points in the horizontal direction of the screen, and "768" refers to the number of points in the vertical direction of the screen. The higher the resolution, the clearer the image.
2. Distance
Point spacing is the distance between two phosphorescent phosphors of similar color in the same pixel. The smaller the dot distance, the more delicate the image shown, the higher the cost, a few years ago the display is 0.31mm and 0.39mm, now most of the point distance at least 0.28mm, now some high-grade display point distance for 0.25mm or even smaller.
3. Refresh frequency
Refresh frequency is the speed of screen refresh. The lower the refresh frequency, the more severe the image flicker and jitter will be, and the faster the eye fatigue will be. Generally, flicker can be basically eliminated when the refresh frequency is above 75Hz.
Therefore, the refresh frequency of 75Hz should be the minimum requirement for the stable operation of the display. In addition, there is a common display performance parameter is line frequency, that is, horizontal scan frequency, refers to the electron gun on the screen to scan the horizontal points, in kHz.
4.Brightness and contrast
The maximum brightness means the maximum brightness of the white block when the screen displays the white graph. The unit of its magnitude is CD /m2. In general, when the background is dark, the brightness of the white block is above 70cd/m2, which is satisfactory.
Contrast refers to the ratio of the brightness of a display screen or character (white blocks for testing) to the background color of the screen. The greater the contrast, the sharper the characters or picture.
5, Size
The screen size of the monitor is actually the size of the picture tube, and the one you're actually using is nowhere near that size. The reason is that the frame of the picture tube takes up some space.
Therefore, the main technical indicators of LCD are resolution, dot distance, refresh frequency, brightness, contrast and size and so on. If you want to know more about this, you can pay attention to our company's website.
Website: www.lcdbvs.com
Alibaba store: www.lcdbvs.en.alibaba.com
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