Segment LCD screens are widely used because of their low price, low driving cost, simple operation and free format. Followed by Xiao Bian to learn about the need to pay special attention to the purchase of LCD screen segment, from the following three aspects to analyze.
Classification of segment code LCD screen1, TN type
2, HTN type
3, STN type
4, FSTN type
1, brightness
The higher the brightness value of the LCD screen, the brighter the displayed screen will be, and the ambiguous situation will not appear.
The most basic unit of brightness is cd/m2, which is a candle per square meter. Some low-level LCD brightness values ​​can be as low as 150 cd/m2, and some high-end displays can also be as high as 250 cd/m2.
2, contrast
The higher the contrast of the LCD screen, the more corresponding colors will be more vivid and saturated, and the three-dimensional effect will also appear.
Conversely, if the contrast of the LCD is lower, the color will be monotonous, and the image will be correspondingly normal.
The gap between the contrasts will also be very large, with a low of 100:1 and a high of 600:1 or even higher.
3, the visible range
We simply say that the visible range refers to a range that can be seen in front of the screen.
If the visual range is bigger, then we can look more relaxed; on the contrary, if the visual range is smaller, as long as we move the viewing position slightly while viewing the image, we see that The picture may not be very clear.
The visual range algorithm is a clear angle range from the middle of the screen to the top, bottom, left, and right directions. The larger the value of this angle range, the wider the range will naturally be, but the range of these four directions is not necessarily symmetrical.
The following is the price of the segment code LCD screen is the latest price trend Xiaobian found in Alibaba. Let's take a look at the industry. (for reference only)
Variety of types, prices are high or low, depends on your own personal needs.
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