How to choose an LCD display?
Feb 16, 2023| To understand an LCD monitor, you can start with the following 5 main aspects:
1. Brightness/Contrast
The brightness of the liquid crystal display is measured in square meter candles (cd/m2) or nits (lumens). Since the liquid crystal display has more backlights than the notebook computer display, the brightness looks obviously brighter than that of the notebook computer. Its brightness is between 150nits and 500nits. A high brightness value indicates that its product performance is high.
However, one thing to note is that some low-end LCDs on the market have serious brightness unevenness, and the brightness of the center and some border areas are quite different.
Therefore, when you buy an LCD, you should pay more attention to the uniformity of the brightness, that is, whether the display effect of the product requires uniform brightness in the center of the screen or on the four sides, there is no obvious darkening phenomenon on the four sides.
The contrast ratio is a parameter that reflects whether the liquid crystal display can display rich color levels. the higher the contrast, the better the layering of the restored picture. even when viewing photos with high brightness, the details of dark parts can be clearly reflected, the contrast ratio of LCD monitors currently on the market is generally between 150:1 and 350:1.High-end LCDs are even higher. In the case of similar prices, you should first consider choosing a product with higher contrast.
2. Viewing angle
Since the LCD uses light transmission to display images, there is a viewing angle, so a common LCD has a shortcoming in that the viewing angle is small. In an LCD, both direct and oblique light will penetrate the pixels in the same display area, so when viewing the screen from an angle other than the viewing angle, you will find ghosting and discoloration of the image. Therefore, the viewing angle refers to the maximum angle at which the LCD screen image can be clearly seen, and the larger the viewing angle, the better.
Usually, the viewing angles of LCD are symmetrical left and right, but not necessarily up and down. The horizontal viewing angle of 15-inch LCD monitors currently on the market is 120 degrees or above. The vertical viewing angle is much smaller than the horizontal viewing angle, The general level is a total of 95 degrees or more of asymmetry up and down.
There are 3 points left for everyone to share in the next blog.