The main display function of LCD is to have a backlight source. The brightness of this light source determines the brightness and color saturation of the LCD. In theory, the brighter the LCD, the better. Brightness is measured in CD /m2(square candlelight per meter). Screen brightness, also known as NIT Lumen TFT, usually starts at 150 nits. Usually 200 Nits will show a better picture. Contrast is a measure of the contrast between two different levels of color, black and white. When the contrast ratio is 120:1, vivid and rich colors can be displayed (because the contrast ratio that the human eye can distinguish is about 100:1). When the contrast ratio reaches 300:1, all levels of color can be supported. Most LCD monitors have a contrast ratio of 500:1 to 800:1. The LCD ratio of top brands such as Asus, Samsung and LG is generally around 1,000:1. There is no fair standard between brightness and contrast, so buying an LCD monitor depends on a keen eye. So when choosing an LCD, pay attention to this indicator. This is also the most difficult part of estimating performance differences in LCD products.
The main display function of LCD is to have a backlight source. The brightness of this light source determines the brightness and color saturation of the LCD. In theory, the brighter the LCD, the better. Brightness is measured in CD /m2(square candlelight per meter). Screen brightness, also known as NIT Lumen TFT, usually starts at 150 nits. Usually 200 Nits will show a better picture. Contrast is a measure of the contrast between two different levels of color, black and white. When the contrast ratio is 120:1, vivid and rich colors can be displayed (because the contrast ratio that the human eye can distinguish is about 100:1). When the contrast ratio reaches 300:1, all levels of color can be supported. Most LCD monitors have a contrast ratio of 500:1 to 800:1. The LCD ratio of top brands such as Asus, Samsung and LG is generally around 1,000:1. There is no fair standard between brightness and contrast, so buying an LCD monitor depends on a keen eye. So when choosing an LCD, pay attention to this indicator. This is also the most difficult part of estimating performance differences in LCD products.